Surgical handpiece and related accessories capable of measuring perforation depth

Abstract

To provide a surgical handpiece for measuring the depth of bore holes and related accessories thereof.SOLUTION: A drill bit comprises a shank extending along an axis and an interface comprising at least one outermost drive portion spaced at a first interface distance from the axis. The drill bit further comprises a resilient arm extending from a proximal end of the shank. The resilient arm comprises an outer arm surface facing away from the axis and a retention surface facing toward a distal end of the shank. The retention surface may be radially aligned about the axis with respect to the outermost drive portion. The resilient arm is movable between: a first position where the outer arm surface is spaced from the axis at a first arm distance greater than the first interface distance, and a second position where the outer arm surface is spaced from the axis at a second arm distance less than or equal to the first interface distance.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] [Cross - Reference to Related Applications] This patent application claims priority and all benefits thereof to U.S. Patent Application No. 15 / 887,507, filed on February 2, 2018, U.S. Provisional Patent Application No. 62 / 548,357, filed on August 21, 2017, U.S. Provisional Patent Application No. 62 / 618,134, filed on January 17, 2018, and U.S. Provisional Patent Application No. 62 / 546,760, filed on August 17, 2017, and incorporates all of their disclosures herein by reference. No., and incorporates all of their disclosures herein by reference. 18, and incorporates all of their disclosures herein by reference. This disclosure generally relates to surgical handpieces and associated accessories capable of measuring the depth of a perforation. and related accessories capable of measuring the depth of a perforation. Incorporate all of their disclosures herein by reference.

[0002] This disclosure generally relates to surgical handpieces and associated accessories capable of measuring the depth of a perforation. relates to.

Background Art

[0003] Conventional medical and surgical procedures typically involve the use of surgical tools and instruments that enable a surgeon to access and manipulate the surgical site. As a non - limiting example, rotary instruments such as hand - held drills are commonly utilized in orthopedic procedures to address various musculoskeletal disorders such as trauma, sports injuries, degenerative diseases, joint reconstructions, etc. In procedures where a hand - held drill or similar surgical instrument is employed, a detachable drill bit or other surgical attachment is rotated at different speeds by the use of rotational torque selectively generated by an actuator (e.g., an electric motor). Drill bits utilized in medical and surgical procedures are typically realized as disposable components that are replaced for each procedure. are typically realized as disposable components that are replaced for each procedure. In procedures where a hand - held drill or similar surgical instrument is employed, a detachable drill bit or other surgical attachment is rotated at different speeds by the use of rotational torque selectively generated by an actuator (e.g., an electric motor). Drill bits utilized in medical and surgical procedures are typically realized as disposable components that are replaced for each procedure. other surgical attachment is rotated at different speeds by the use of rotational torque selectively generated by an actuator (e.g., an electric motor). Drill bits utilized in medical and surgical procedures are typically realized as disposable components that are replaced for each procedure. related to are typically realized as disposable components that are replaced for each procedure.<​​​​​​

[0004] As an aid in performing a variety of different types of medical and / or surgical procedures, handheld Although conventional surgical instruments and drill bits are commonly used, in this art, Continuous improvement is needed for eel drill bits and handheld surgical instruments. [Brief explanation of the drawing]

[0005] [Figure 1] This is a perspective view of a surgical handpiece assembly and a surgical handpiece system comprising a measuring module, showing a single configuration having a drill bit and a tip protection device. [Figure 2] Figure 1 is an exploded perspective view of a surgical handpiece system showing the end effector assembly removed from the surgical handpiece assembly, the tip protector separated from the distal cutting tip of the drill bit, and the measuring module, drive cannula, and release assembly separated from the handpiece housing assembly. [Figure 3] Figures 1 and 2 are partially exploded perspective views of a portion of a surgical handpiece assembly, showing the drive cannula and release assembly separated from the virtual outline of the handpiece housing assembly to illustrate the actuator assembly. [Figure 4] This is a partial isometric cross-sectional view along line 4-4 in Figure 1. [Figure 5] This is a magnified detail view of the point marked 5 in Figure 4. [Figure 6] Figures 1 to 5 show longitudinal cross-sectional views of the surgical handpiece assembly with the end effector assembly removed. [Figure 7A] This is an enlarged detail view at mark 7 in Figure 6, showing the measurement module, drive cannula, release assembly, and part of the actuator assembly within the handpiece housing assembly. [Figure 7B]Another enlarged detail view of the surgical handpiece system shown in Figures 1 and 7A, illustrating the state in which a pair of elastic arms positioned at the proximal end of the drill bit approach the proximal part of the drive cannula. [Figure 7C] Figures 7A and 7B show another enlarged detail view of the surgical handpiece system, illustrating how the elastic arm of the drill bit engages with the seating surface of the proximal portion of the drive cannula and is bent toward each other. [Figure 7D] Figures 7A to 7C show another enlarged detail view of the surgical handpiece system, in which the elastic arm of the drill bit is disposed within the bore of the proximal part of the drive cannula, and the drill bit has a shank with a proximal end to which the elastic arm extends, a stopper coupled to the shank, and an interface coupled to the shank and interposed between the stopper and the proximal end. [Figure 7E] Figures 7A to 7D show another enlarged detail view of the surgical handpiece system, where the elastic arm of the drill bit is further positioned within the proximal bore of the drive cannula, and the interface of the drill bit is positioned within the proximal bore of the drive cannula adjacent to the seating surface. [Figure 7F] Figures 7A to 7E show another enlarged detail view of the surgical handpiece system, illustrating how the elastic arms of the drill bit bend elastically so that they separate from each other, with each elastic arm having a holding surface in contact with the locking surface at the proximal end of the drive cannula, and how the stopper of the drill bit contacts the seating surface at the proximal end of the drive cannula, holding the interface within the bore. [Figure 7G] Figures 7A to 7F show another enlarged detail view of the surgical handpiece system, illustrating how the release member of the release assembly engages with the elastic arm and bends the elastic arm toward each other, facilitating the movement of the holding surface of the elastic arm to eliminate contact with the locking surface of the proximal part of the drive cannula. [Figure 7H]Figures 7A to 7G show another enlarged detail view of the surgical handpiece system, illustrating how the release member of the release assembly further engages with the elastic arm, and how the holding surface of the elastic arm is bent to eliminate contact with the locking surface of the proximal portion of the drive cannula. [Figure 7I] Figures 7A to 7H show another enlarged detail view of the surgical handpiece system, illustrating the state in which the release member of the release assembly disengages from the elastic arm, and the elastic arm is positioned within the bore of the proximal part of the drive cannula, adjacent to the locking surface without contact. [Figure 8] Figures 2 to 7I show exploded perspective views of the drive cannula. [Figure 9] Figures 3 to 7I show partially exploded views of the actuator assembly, illustrating that it has a motor with drive gears and a gear set with an output hub. [Figure 10] Figure 9 is an exploded perspective view of the gear assembly. [Figure 11] Figures 9 and 10 show another exploded perspective view of the gear assembly. [Figure 12] Figures 1 to 7I show partially exploded views of the release assembly, which has a release subassembly separated from the retainer and housing adapter. [Figure 13] Figure 12 is an exploded perspective view of the release subassembly. [Figure 14] Figures 12 and 13 show another exploded perspective view of the release subassembly. [Figure 15A] This is a perspective view showing the proximal portion of the drive cannula shown in Figures 2 to 8, positioned adjacent to the output hub of the gear assembly shown in Figures 3 to 7I and Figures 9 to 11. [Figure 15B] Figures 1, 2, 4, 5, and 7B-7I show perspective views of the proximal and output hubs of the drive cannula in Figure 15A, assembled to rotate simultaneously by spline engagement, positioned adjacent to an elastic arm extending from the proximal end of the drill bit shank. [Figure 15C]Another perspective view of the proximal portion of the drive cannula, the output hub, and the drill bit, showing the elastic arm of the drill bit disposed in contact with the locking surface of the proximal portion of the drive cannula. [Figure 15D] A perspective view of another proximal portion of the drive cannula positioned adjacent to another output hub. [Figure 16] A top view of the proximal portion of the drive cannula and the output hub assembled as shown in FIG. 15B. [Figure 17A] A cross-sectional view taken along line 17-17 of FIG. 16, showing the proximal portion of the drive cannula disposed within the output hub as shown in FIG. 15B. [Figure 17B] Another cross-sectional view of the proximal portion of the drive cannula and the output hub of FIG. 17A, showing the elastic arm of the drill bit disposed within the bore of the proximal portion of the drive cannula as shown in FIGS. 1, 2, 4, 5, 7B-7I, 15B, and 15C. [Figure 17C] Another cross-sectional view of the proximal portion of the drive cannula, the output hub, and the drill bit of FIG. 17B, showing the elastic arm of the drill bit disposed in contact with the locking surface of the proximal portion of the drive cannula as shown in FIG. 15C. [Figure 18A] A cross-sectional view taken along line 18-18 of FIG. 16, showing the profile of the bore of the proximal portion of the drive cannula. [Figure 18B] Another cross-sectional view of the proximal portion of the drive cannula of FIG. 18A, showing the elastic arm of the drill bit disposed within and in contact with the bore of the proximal portion of the drive cannula, and the drill bit arranged as shown in FIG. 17B, as shown in FIGS. 1, 2, 4, 5, 7B-7I, 15B, and 15C. [Figure 18C] Another cross-sectional view of the proximal portion of the drive cannula and the drill bit of FIG. 18B, showing the interface disposed within the bore of the proximal portion of the drive cannula. [Figure 19A] A cross-sectional view taken along line 19-19 of FIG. 16, showing the spline engagement between the proximal portion of the drive cannula and the output hub adjacent to the locking surface of the proximal portion of the drive cannula. [Figure 19B] Another cross-sectional view of the proximal portion and output hub of the drive cannula. [Figure 19C] Figures 19A and 19B show another cross-sectional view of the proximal and output hub of the drive cannula, where a portion of the elastic arm of the drill bit is positioned within and in contact with the bore of the proximal part of the drive cannula, as shown in Figure 17C. [Figure 20] Figures 1, 2, 4, 5, 7B-7I, 15B, 15C, 17B, 17C, 19B, and 19C show separate details of the elastic arm, interface, and stopper adjacent to the proximal end of the shank, which are partial perspective views of the drill bit. [Figure 21] This is another perspective view of the drill bit shown in Figure 20. [Figure 22] Figures 20 and 21 show left side views of the drill bit portion. [Figure 23] Figures 20 to 22 are top views of the drill bit portion. [Figure 24A] Figures 1, 2, 4, 5, 7B-7I, 15B, and 15C show a state where the drill bit interface is misaligned with the bore of the proximal part of the drive cannula, and Figures 15A and 15B show partial perspective views of the proximal part of the drill bit and the drive cannula. [Figure 24B] Figure 24A is another perspective view of the drill bit and the proximal portion of the drive cannula, showing the drill bit interface aligned with the bore of the proximal portion of the drive cannula. [Figure 25] This is a partial perspective view of another drill bit configuration, showing that it has a single elastic arm. [Figure 26] Figure 25 is another partial perspective view of the configuration of the drill bit shown. [Figure 27] This is a partial perspective view of another drill bit configuration, showing that it has three elastic arms. [Figure 28]This is a longitudinal cross-sectional view of the configuration of the drill bit shown in Figure 27, which has a cannula-mounted shank. [Figure 29] Figure 15C is a schematic front view showing the proximal portion of a drive cannula, the output hub, and the drill bit as they are arranged, with the locking surfaces of the proximal portion of the drive cannula bounded by a spline engagement between the proximal portion of the drive cannula and the output hub, the profile of the drill bit interface indicated by a dashed line positioned within the bore of the proximal portion of the drive cannula, and the arrangement of the elastic arm indicated by a dashed line showing the radial alignment of the elastic arm's retaining surface with respect to the locking surface of the proximal portion of the drive cannula and the interface profile. [Figure 30] Figure 29 is another schematic front view showing the proximal and output hub of the drive cannula, in which the drill bit has an elastic arm that contacts the locking surface of the proximal part of the drive cannula to size, shape, and position it. [Figure 31] Figures 29 and 30 show another front schematic view representing the proximal and output hub of the drive cannula, with the drill bit having an interface that generally has a rectangular profile. [Figure 32] Figures 29-31 show another schematic front view illustrating the proximal and output hub of the drive cannula, which has a configuration in which the drill bit has an interface generally having a star-shaped profile. [Figure 33] Figures 29-32 show another schematic front view illustrating the proximal and output hub of the drive cannula, in which the drill bit has an interface with an irregularly shaped profile. [Figure 34] Figures 1 and 2 are partial perspective views of the end effector assembly, showing the distal cutting tip of the drill bit positioned within the tip protection device. [Figure 35] Figures 1, 2, and 34 show perspective views of the tip protection device of the end effector assembly. [Figure 36] This is a cross-sectional view along line 36-36 in Figure 35. [Figure 37]This is a perspective view of another tip protection device configuration for an end effector assembly. [Figure 38] This is a cross-sectional view along line 38-38 in Figure 37. [Figure 39] This is a perspective view of another tip protection device configuration for an end effector assembly. [Figure 40] This is a cross-sectional view along line 40-40 in Figure 39. [Figure 41] This is a perspective view of another tip protection device configuration for an end effector assembly. [Figure 42] This is a cross-sectional view along line 42-42 in Figure 41. [Figure 43] This is a perspective view of another tip protection device configuration for an end effector assembly. [Figure 44] This is a cross-sectional view along line 44-44 in Figure 43. [Figure 45] This is a perspective view of another tip protection device configuration for an end effector assembly. [Figure 46] This is a cross-sectional view along line 46-46 in Figure 45. [Figure 47] This is a perspective view of a surgical attachment module adjacent to a surgical handpiece assembly. [Figure 48] Figure 47 shows another perspective view of the surgical attachment module adjacent to the surgical handpiece assembly. [Figure 49] These are partial isometric cross-sectional views of the surgical attachment module coupled to the surgical handpiece assembly shown in Figures 47 and 48, generally along the longitudinal axis. [Figure 50] Figures 47-49 are partial isometric cross-sectional views of the surgical handpiece assembly, generally perpendicular to the longitudinal axis. [Figure 51] These are partial isometric cross-sectional views of surgical attachment modules coupled to surgical handpiece assemblies, as shown in Figures 47-50, generally perpendicular to the longitudinal axis. [Figure 52] This is a perspective view of the measurement module adjacent to the surgical handpiece assembly. [Figure 53]Figure 52 is another perspective view of the measuring module adjacent to the surgical handpiece assembly. [Figure 54] These are partial isometric cross-sectional views of the measuring module coupled to the surgical handpiece assembly shown in Figures 52 and 53, generally along the longitudinal axis. [Figure 55] This is a perspective view of another measurement module adjacent to the surgical handpiece assembly. [Figure 56] Figure 55 shows another perspective view of the measuring module adjacent to the surgical handpiece assembly. [Figure 57] These are partial isometric cross-sectional views of the measuring module coupled to the surgical handpiece assembly shown in Figures 55 and 56, generally along the longitudinal axis. [Figure 58] Mark 58 in Figure 57 is a magnified detail view of the measuring module connected to the surgical handpiece assembly shown in Figures 55-57. [Figure 59] Mark 59 in Figure 57 shows another enlarged detail view of the measuring module coupled to the surgical handpiece assembly shown in Figures 55-58. [Figure 60] These are partial isometric cross-sectional views of the measuring module attached to the surgical handpiece assembly shown in Figures 55-59, generally perpendicular to the longitudinal axis. [Figure 61] This is a cross-sectional view of the measuring module coupled to the surgical handpiece assembly shown in Figures 55-60, generally along the longitudinal axis and generally perpendicular to the diagram in Figure 57. [Figure 62] Figures 55 to 61 are exploded views of the measurement module, showing the biasing mechanism located inside the measurement housing. [Figure 63] Figures 55 to 62 are enlarged views of the measurement module, showing the biasing mechanism located inside the measurement housing. [Figure 64] Figures 55 to 63 are perspective views of the measurement module. [Figure 65] Figures 55 to 64 are perspective views of the measurement module, showing the bushing and virtually illustrating the measurement housing and depth cannula. [Figure 66] Figures 55 to 64 are perspective views of the measurement module, showing the projection extending from the distal end of the bush into the bush's bore. [Modes for carrying out the invention]

[0006] Referring to the drawings, the same numbering is used for specifying similar structures across multiple drawings. Figures 1 and 2 show the functional actions associated with medical and / or surgical procedures. This shows a surgical handpiece system 60 that performs the procedure. In this context, the surgical handpiece system 60 facilitates penetration of patient tissues such as bone. It will be used. For this reason, the illustrated configuration of the surgical handpiece system 60 includes a surgical hand Includes a endpiece assembly 62 and an end effector assembly shown as 64. This end effector assembly 64 includes a drill bit 66 and a tip protector 68. Prepare. As best shown in Figure 2, the drill bit 66 has a cutting tip that is indicated by 70 as the whole. It extends generally in the longitudinal direction along axis AX between the insertion portion, which is shown as 72 in its entirety. As will be explained in detail, the cutting tip 70 is configured to engage with tissue, and the insertion part 72 is a removable mounting of the drill bit 66 to the surgical handpiece assembly 62. It is configured to facilitate this process.

[0007] This helps to facilitate the attachment of the drill bit 66 to the surgical handpiece assembly 62. As shown in some configurations, the tip protection device 68 protects the cutting tip of the drill bit 66. It can be released relative to the cutting tip 70 of the drill bit 66 while concealing at least a portion of 70. By being fixed in place, the user of the surgical handpiece system 60 (for example, a surgeon) ) safely operates the drill bit 66 while it is being attached to the surgical handpiece assembly 62. and is configured to be able to be positioned. The end effector assembly 64 is for surgical use After being attached to the handpiece assembly 62, the tip protection device 68 protects the drill bit 6 Because it is removed from the cutting tip 70 of 6, the surgical handpiece system 6 penetrates tissue. 0 becomes available. Regarding the configuration of the tip protection device 68, see Figures 34 to 46. This will be explained in more detail below.

[0008] As mentioned above, drill bits are... The connection shape is not compatible with any other type of surgical end effector (especially cannula-attached ones). It can also be used in conjunction with rotational surgical end effectors such as Lilbit and bone forceps.

[0009] Referring here to Figures 1 to 19C, in the typical configuration described herein, the surgical hand The endpiece assembly 62 is connected to the battery 76 (battery attachment, details not shown in the illustration). A pistol grip-shaped handpiece housing that can be removably attached to (T) It is implemented as a handheld drill with assembly 74. However, the handpiece housing The grip assembly can have any suitable shape, regardless of whether or not it has a pistol grip. The surgical handpiece assembly 62 shown in the illustration is a handpiece housing assembly. It can be removably attached to the bri 74 and is used to power the rotation of the drill bit 66. A battery 76 is used to supply power to the surgical handpiece assembly 62, but naturally However, internal (for example, non-removable) batteries or external consoles, power supplies, etc. It may also be configured using other methods, such as tethering. Other configurations are also possible.

[0010] The handpiece housing assembly 74 is a disassembled assembly (described in more detail below). It has a proximal region adjacent to BR150 and a distal region opposite the proximal region. Unless otherwise specified, "proximal" refers to the user's handpiece housing assembly. It is understood that this refers to the side that holds the yellowtail. "Distal" is used by the user. It is understood that this refers to the side furthest from the side that holds the handpiece housing assembly. .

[0011] In the illustrated configuration, the battery 76 or other power source is connected to the user input device 80 and the ACT Controller 78 (Figure 6) is arranged in communication with the tuner assembly 82 (see also Figure 3). It supplies power to the user input device 80 and actuator assembly (as schematically shown). Each of the ri82 is supported by the handpiece housing assembly 74. The Trolla 78 responds to the operation of the user input device 80 by controlling the actuator assembly 82 It is generally configured to facilitate operation. In the illustrated configuration, the user input device 8 0 has a trigger-type configuration and responds to activation by a user (e.g., a surgeon). Also, the controller 78 and the electrical signals generated by the magnet and Hall effect sensor They communicate. Therefore, the surgeon activates the user input device 80 to access the surgical handpiece. When the actuator 62 is activated, the controller 78 receives power from the battery 76. Power is supplied to the sembl 82, which in turn powers the drill bit, as will be explained in more detail below. A rotational torque is generated that is used to rotate the T66 or other surgical end effectors. Those skilled in the art will naturally know the handpiece housing assembly 74, battery 76, The controller 78 and the user input device 80 each deviate from the scope of this disclosure. Furthermore, to facilitate the generation of rotational torque, it is possible to configure it in many different ways. be.

[0012] As best shown in Figure 9, the actuator assembly 82 is generally, each one is a hand It comprises an electric motor 84 and a gear manifold 86 supported within a two-piece housing assembly 74. The motor 84 rotates in response to commands, signals, etc., received from the controller 78. It is configured to selectively generate k. As best shown in Figure 6, motor 84 A rotor cannula 8 is supported by a pair of bearings 90 to rotate around axis AX. It is equipped with 8. The drive gear 92, which is positioned adjacent to the gear set 86 (see Figure 9), is connected to the rotor crab. It is coupled with the 88 and rotates simultaneously, which transmits rotational torque to the gear set 86. It is adopted for this purpose. Therefore, in the illustrated configuration, as shown in Figures 10 and 11. Thus, the gear assembly 86 is realized as a two-stage composite planetary configuration, and generally, in particular, bearings In addition to 90, one or more retaining clips 98, washers 100, and / or It includes a ring gear housing 94 that rotatably supports the output hub 96 via a seal 102. The ring gear housing 94 is coupled to the motor housing 85 of the motor 84. Furthermore, the gear assembly 86 can be configured in other ways. For example, a surgical handpiece assembly... The motor and gear assembly described in International Patent Application Publication No. WO2007002230 is included. It is also possible that the latter is used, and this is incorporated herein by reference.

[0013] Continuing with Figures 10 and 11, in the illustrated configuration, the output of the gear assembly 86 Hub 96 is connected to shaft 108, and in some configurations to shaft 108 and planetary gear 1 The three planetary gears 106 are supported by the bush 110 interposed between them. It is equipped with an integrated carrier 104. The planetary gear 106 is a ring gear housing 94 and thick It is arranged in meshing engagement with the positive gear 112. The sun gear 112 is connected to each shaft A second key supporting the additional three planetary gears 106 via bushings 108 and 110 These additional planetary gears 106 rotate simultaneously with the carrier 104. It is arranged in meshing engagement with the housing 94, and also meshing with the drive gear 92 of the motor 84. They are arranged in a mating engagement. Therefore, the rotation of the drive gear 92 due to the operation of the motor 84 The output hub 96 rotates simultaneously. See Figures 15A to 15C and Figures 17A to 19C. As explained in more detail below, the output hub 96 rotates simultaneously with the drill bit 66. To rotate. As will be obvious to those skilled in the art, the actuator assembly 82 is within the scope of this disclosure. It is also possible to construct it in other ways without deviating from it. One non-limiting example is... The combination of the drive gear 92 of the motor 84 and the output hub 96 adjusts the rotational speed and torque between them. While the illustrated actuator assembly 82 employs a planetary configuration, several other configurations are available. In this case, it is also possible to use other types of gear sets 86. Furthermore, rotational torque is generated. The actuator assembly 82 shown in the figure employs an electric brushless DC motor. Alternatively, it is possible to use other types of prime movers. Other configurations are also conceivable.

[0014] As described above, the output hub 96 rotates due to the rotational torque generated by the motor 84. However, this rotates simultaneously with the drill bit 66. Therefore, as shown in Figures 2-5 and Figure 8, As clearly shown, the surgical handpiece assembly 62 is connected to the actuator assembly 8 The output of the gear set 86 extends generally through two different cannula mounting components. It further comprises a drive cannula 114 that spline-engages with the hub 96. More details below. As explained, the drive cannula 114 is connected to the drill bit 66 and the surgical handpiece assembly. It is configured to facilitate a removable attachment to the Bri 62. Drive cannula 1 14 generally comprises a proximal part 116, a distal part 118, and a main body part 120. The proximal portion 116, distal portion 118, and main body portion 120 of the ure 114 move simultaneously around axis AX. It is supported to rotate. In some configurations, part of the drive cannula 114 116, 118, and 120 are integrally formed. In other configurations, the drive cannu Parts 116, 118, and 120 of part 114 are formed separately from each other and welded, brazed, and joined. The attachment, joining, or operable integration of parts 116, 118, and 120 of the drive cannula 114. So that they can be attached to each other later by any suitable process that is sufficient for installation. It may be. In some of the drawings shown herein, surgical handpiece assembly The relationship between the proximal portion 116 of the drive cannula 114 and other components of the Bri 62 is as follows: To better illustrate this, the main body 120 and distal part 118 have been removed. Furthermore, as shown in Figure 2, the main body 120 and the distal part 118 are located near the drive cannula 114. It is coupled to part 116. Furthermore, naturally, the drive cannula is other than the above. It may be in any other form, or simply a drive element that transmits torque without a lumen. good.

[0015] The drive cannula 114 has an output hub 9 adjacent to the proximal portion 116 of the drive cannula 114. Spline engagement with 6 and bearing 90 adjacent to the distal portion 118 of the drive cannula 114 The arrangement of the snap ring 100 and seal 102 ensures that the handpiece housing is properly secured. It is supported within assembly 74 so as to rotate around axis AX (see Figures 6 and 8). As will be explained in more detail below in relation to Figures 15A to 33, the proximal part of the drive cannula 114 Section 116 is configured to accept the interface 124 of the drill bit 66 (see Figure 2). The adopted generally hexagonal bore 122 allows for the drill bit 66 and drive crab Simultaneous rotation with the 114 is facilitated. As will be clear from the following explanation, the interface -124 is a physical shaft extending outward from axis AX, configured to be driven outward. It is defined by its structure. As best shown in Figure 8, the main body of the drive cannula 114 120 and the distal portion 118 each have a cylindrical bore. However, the drive cannula 1 Other configurations of the main body 120 and distal portion 118 include polygonal or oval bore profiles. Files and other components may have non-cylindrical bores. Bearings, snap rings, and seals may have other structures. It is also possible that the engagement of the output member with respect to the drive cannula / drive element is a motor As long as torque is transmitted from the drive cannula / drive element, it can take any suitable form.

[0016] As described above, the proximal portion 116 of the drive cannula 114 engages with the drill bit 66, The drill bit 66 is configured to rotate around axis AX. Drive cannula 11 The inner surface defining the bore 122 of the proximal portion 116 of 4 transmits torque to the drill bit 66. It includes a first drive unit. As will be explained in more detail below, the distal part of the drive cannula 114 118 has a distal projection, which is shown as 126 overall, which is the rotation of the drill bit 66 When the surgical handpiece assembly 62 is used in connection with other uses, excluding rotation It includes a second drive unit provided to facilitate torque transmission. In the illustrated configuration, As best shown in Figures 2 and 8, the distal projection 126 is generally in the distal direction and with respect to axis AX. It extends parallel to the other and defines the distal end of the drive cannula 114. In other configurations, the distal process The portion 126 extends perpendicular to the axis AX. In other configurations, the distal projection 126 is perpendicular to the axis It extends at an oblique angle between perpendicular and horizontal with respect to AX. In one configuration, the distal projection 126 is It operates as a drive dog / torque transmission shape that transmits torque through interference coupling. Specifically, in the above configuration, the drive cannula 114 is the distal part of the drive cannula 114 Many different species can be configured to engage and rotate simultaneously with the distal projections 118 and 126. Surgical attachments, tools, modules, end effectors, etc. for use with surgical handpieces. - Assembly 62 is configured to be able to rotate, drive, or actuate. However, this means that the same applies to a great many medical and / or surgical procedures. The surgical handpiece assembly 62 becomes available. Distal part 1 of the drive cannula 114 Further details regarding 18 are described below. However, in some configurations, The different configurations of the dynamic cannula 114 allow the surgical handpiece assembly 62 to be as disclosed herein. In a configuration set up specifically for the drill bit 66, the distance of the drive cannula 114 It is also possible to omit the distal projection 126 in the positional portion 118.

[0017] Here, referring to Figures 1, 2, 4, and 6, the surgical handpiece system 60 The illustrated configuration further includes a measurement module, shown as a whole at 128, which is a surgical hand Removably attached to the piece assembly 62, the measuring function during use is provided to the surgeon. It is configured to provide. Therefore, as shown in Figures 4 and 6, the measurement module The 128 generally consists of a housing 130, a guide bush 132, and a depth cannula 13 4. It comprises a displacement sensor assembly 136 and a rotatable gear 146. In this configuration, the housing 130 is removable from the surgical handpiece assembly 62. It can be attached to the handpiece house. In other configurations, the measurement module 128 is located in the handpiece house. It is removably attached to the sing assembly 74 in a different manner. The measurement module is equipped with one or more buttons to control the functions of the measurement module. It may be done. Measurement module 128 for handpiece housing assembly 74 The configuration of the removable mounting will be discussed in more detail below. Housing 130 is Overall, the various components of the measurement module 128 are supported. Figure 4 and The housing 130 shown in Figure 6 is a pair of housings that are integrally connected or attached. It is formed as a component 138, and by disassembly, the measurement module 128 It may be configured to facilitate cleaning or repair. In the illustrated configuration, the housing The mounting component 138 and guide bush 132 are connected to the housing component 1 Notches formed in the guide bush 132 that fit into the web or rib formed in 38 (Details not shown) etc., to prevent relative axial and rotational movement between the two. It is equipped with a mechanism of corresponding shape configured in such a way. For example, the guide bush 132 is a measuring how The zing 138 is stabilized, and the button 135 of the measurement module (Figures 62 and 6) One or more wings 133 (see Figure 4) allow support when the part is pushed down. It may include (see Figures 63 and 65). The wing 133 of the guide bush 132 is The guide bushing may be located in one or more recesses of the measuring housing 138. As explained in detail below, 132 further enhances the window 142 used in conjunction with the gear 146. Prepare for it.

[0018] The depth cannula 134 is positioned within the guide bush 132 and along the measuring axis MX. It is supported to move in parallel. Measurement module 128 is a surgical handpiece assembly. When mounted on a bridle, the measuring axis MX is positioned coaxially with axis AX. (Optional) As an option, an elongated concave slot 143 (partially shown in Figure 2) is positioned horizontally to the depth of the cannula 134. It is formed in a direction and extends in the longitudinal direction. Although not specifically shown herein, The elongated recessed slot 143 is supported by the housing 130 and the guide bush 132 To receive a movable stopper element that extends similarly through an opening formed laterally on the side. It is molded and positioned. This configuration has a depth cannula relative to the guide bush 132. Limiting the distance that 134 can extend or retract axially, and the depth around the measuring axis MX This helps both to prevent rotation of cannula 134 and to prevent rotation. However, naturally, The measurement module 128 may, without departing from the scope of this disclosure, otherwise measure the depth cannula It is also possible to configure it to restrict or prevent the movement of -L 134.

[0019] The depth cannula 134 is along at least a portion of the length of the depth cannula 134 The gear 146, which is arranged in a straight line and positioned adjacent to the distal end of the guide bush 132, engages with the gear 146. It further comprises a plurality of rack teeth 144 arranged in a mating engagement. As shown in Figure 6, The window 142 of the bush 132 is positioned adjacent to the gear 146, and the rotation of the gear 146 The rack teeth 144 and gear 14 are arranged so that the rotation and depth movement of the cannula 134 are directly proportional. To facilitate engagement with 6. Displacement sensor assembly 136 has depth cannula 134 This corresponds to the rotation of gear 146 as a result of axial movement, but the potentiometer This is achieved by a rotary encoder or the like, and the position of the depth cannula 134 along the measurement axis MX. It may also be possible to generate an electrical signal that represents the change in displacement. The sensor assembly 136 can enhance the functionality of the surgical handpiece system 60. As an example, in some configurations, the displacement sensor assembly 136 is controlled by the controller 7 The controller 78 may be connected to 8 and controls the specific drilling depth for the tissue. The movement of the depth cannula 134, such as the deceleration of the rotation of the drill bit 66, is based on the movement of the depth cannula 134. The drive of the TA84 may be configured to be interrupted or adjusted. Also, the displacement sensor ASE The Nburi 136 is a display screen, one or more light-emitting diodes (LEDs), etc. By being installed in conjunction with I-148, the actual time drilling depth and the recorded maximum drilling depth are... Information regarding the movement of depth cannula 134, such as displaying the history, should be provided to the surgeon. This is also possible. Other configurations are also conceivable. Furthermore, this same information is transmitted to the user by a speaker. Furthermore, it provides voice indicators such as real-time drilling depth and a history of recorded maximum drilling depth. This is also acceptable. International patent application publication WO2017 / 0407, filed on September 1, 2016. No. 83 “Powered Surgical Drill With Integral Depth Gauge That Includes A Probe That All disclosures in "Slides Over A Drill Bit" are hereby incorporated herein. To use.

[0020] Those skilled in the art will naturally be able to see the various components of the measurement module 128. It is also possible to arrange them in several different ways. Furthermore, the illustrated measurement module 128 is The drill bit of the illustrated surgical handpiece assembly 62 is attached to the illustrated surgical handpiece assembly 62 and the drill bit of the present disclosure It is compatible with the 66, but in some configurations, different types of modules are required. Due to the adoption of uging, covers, etc., the measurement module is removed from the surgical handpiece assembly 62. It is also possible to omit "Ru 128".

[0021] Here, referring to Figures 1-3 and 12-14, the surgical handpiece assembly 6 The configuration shown in Figure 2 further includes a release assembly, which is shown in its entirety at 150, but this is shown in Figure 7F. As will be explained in more detail below in relation to Figure 7I, the removal of the drill bit 66 is made easier. It is configured to be converted. As shown in Figure 12, the release assembly 150 is generally It comprises a release subassembly 152, a retainer 154, and a housing adapter 156. The retainer 154 and the housing adapter 156 each release the subassembly 152 Secured to the actuator assembly 82 and the handpiece housing assembly 74. It is configured in such a way that it can be implemented in many different configurations, or even several different configurations. In that configuration, it can also be incorporated into other parts of the surgical handpiece assembly 62. It is possible. As shown in Figures 13 and 14, the release sub-assembly of the release assembly 150 Ri 152 consists of a release body 158, a washer 100, a pair of guide elements 160, and a collar 162. The guide element 160 includes a release member 164 and a cap 166. Each spiral slot formed in the release body 158 is supported within the pocket 168 formed in 4. Move along the line 170 and along each color channel 172 formed in the color 162. Moves. The guide element 160 in the illustrated configuration is spherical. With this configuration, the release member 16 4, in response to the rotation of color 162, moves in parallel along axis AX in the distal and proximal directions. It is movable (see Figures 7F to 7I). As will be explained in more detail below, the release member 164 is It is configured to engage with the insertion portion 72 of the drill bit 66 in response to the rotation of the collar 162. It is equipped with an operating element 174 that defines the release surface 175. By the rotation of the collar 162, the release part Material 164 moves parallel to the distal direction along axis AX, so the surgical handpiece assembly The removal of the drill bit 66 from the drive cannula 114 of the ri 62 is facilitated. (Illustration) In this configuration, the release surface 175 is tapered away from the axis AX from the proximal direction to the distal direction. It is an annular surface. Between the release body 158 and the release member 164, there is one or more washers. Together with the 100, a biasing element such as a compression spring (not shown) is interposed to release the release member 164. The release member 164 may be biased toward the cap 166. Facilitating axial holding of the biasing and / or release member 164 to the release subassembly. Therefore, other suitable biasing elements and / or fasteners may be used.

[0022] As described above, the drill bit 66 of this disclosure has an axis A between the cutting tip portion 70 and the insertion portion 72. It generally extends along X, and the interface 124 of the drill bit 66 and the drive cannula The engagement of the proximal portion 116 of the 114 with the bore 122, as described and drawn herein, It is configured to be removably attached to the surgical handpiece assembly 62 shown in the illustration. Meanwhile, the drive cannula 114 is connected to the gear set of the actuator assembly 82. The 86 works in conjunction with the output hub 96 to facilitate the rotation of the drill bit 66 around axis AX. The drill bit 66, the drive cannula 114, and the output hub 96, as well as each Collaboration will be explained in more detail below.

[0023] Referring here to Figures 2 and 20-24B, the drill bit 66 is 176 in total length. It is equipped with a shank, which is along the axis AX between the proximal end 178 and the distal end 180. It extends (as shown in Figure 2). The distal end 180 of the shank 176 has a spiral around the axis AX. A groove 182 is provided, which is positioned and extends to the tip of the drill bit 66 to facilitate tissue penetration. (See Figure 2). Also, in the illustrated configuration, the drill bit 66 has an optional feature. A bearing region 184 is provided, which is connected to the shank 176 between the proximal end 178 and the distal end 180. It is positioned (see Figure 2). The bearing area 184 is the depth cannula of the measuring module 128. It is received by cannula 134 and sized to rotate relative to the depth of cannula 134. (See Figure 4). Here, the bearing region 184 is essentially along the length of the drill bit 66. It provides support in the rotational direction, and the adjacent far distance of the shank 176 in the illustrated configuration The stepped outer region of the shank 176 has a larger diameter than the pit and proximal regions. This defines the bearing area of ​​the shank 176 of the drill bit 66. 184 may also be constructed in other ways without departing from the scope of this disclosure. Furthermore, although described as drill bit 66 in this disclosure, drill bit 6 6 has similar characteristics and also has another suitable end effector such as a bar or reamer. In other words, it can also be configured as a rotating end effector.

[0024] In the illustrated configuration, the drill bit 66 has a shank 176 with a distal end 180 that is a drill bit It corresponds to the cutting tip 70 of the 66, or is disposed adjacent to the cutting tip 70. It is formed as a single integrated component. However, naturally, The Rubit 66 has a cutting tip 70 of the drill bit 66 that is a separate component from the shank 176. For example, when it is formed as a component and later attached to the distal end 180 of the shank 176, It is also possible to manufacture it using other methods. Nevertheless, for clarity and consistency, The cutting tip 70 described above is located proximal to the shank 176 in the illustrated configuration described herein. It corresponds to an end of 180.

[0025] Figures 20 to 23 show the removable attachment to the surgical handpiece assembly 62, as described above. This diagram shows the insertion portion 72 of the drill bit 66, which is configured to facilitate installation. For this purpose, the interface 124 of the drill bit 66 is close to the shank 176. It is connected to the shank 176, adjacent to the terminal end 178 but separated distally. As explained in more detail, the interface 124 of the shank 176 is for surgical handpieces. The surgical hand assembly 62 is designed so that the drill bit 66 can be rotated during installation. To facilitate rotational locking of the drill bit 66 to the endpiece assembly 62 It is configured as follows: The drill bit 66 is inserted axially into the surgical handpiece assembly 62. To lock in place, the drill bit 66 has a stopper 186 and the whole thing is indicated by 188. It further includes multiple elastic arms. The stopper 186 is interface 124 It is adjacent to the shank 176, separated distally, and is tapered and generally circular. A stopper surface 190 having a frustum-shaped profile is defined. (See Figures 7F and 17C) To that end, the stopper surface 190 has a tapered shape corresponding to the proximal portion 116 of the drive cannula 114. The drill bit 66 contacts the P-shaped seating surface 192 and enters the surgical handpiece assembly 62. It is molded and positioned to limit the distance it can travel in the axial direction. Also, the seat surface 19 2 assists in guiding the drill bit 66 through the bore 122 of the drive cannula 114. Therefore, a tapered transition surface may be formed from the distal direction to the proximal direction toward the axis AX. Naturally, the drill bit 66 of this disclosure is used with the surgical handpiece assembly 62 It is also possible to configure it in a way that is sufficient to limit the distance it can travel axially inward. As will be explained in more detail below, the elastic arm 188 is relative to the drive cannula 114. The drill bit 66 is configured to be held axially.

[0026] Referring to Figures 22 and 23, the interface 124 of the drill bit 66 is Extending along axis AX between the distal end 194 of the turf face and the proximal end 196 of the interface For clarity and consistency, in this specification, the distal end of the interface 194 And the interface proximal end 196 is such that interface 124 is generally consistent between the two. Defined as discrete positions along the length of the drill bit 66 having a cross-sectional profile However, in other configurations, the interface distal end 194 and the interface It is also possible to define the proximal end 196 in other ways. For example, the interface The face 124 is connected to the cylindrical portion of the shank 176 that extends between them, along the shank 176. The boundaries are defined, and the same cross-sectional profile or different cross-sectional profiles are separated in the axial direction. It is also possible to have multiple discrete "interface regions," each possessing its own unique properties. Other configurations are also possible.

[0027] In the configuration of the drill bit 66 shown in Figures 22 and 23, the interface is near The transition region 198 extends from end 196 to the proximal end 178 of the shank 176. Here, The transition region 198 is located at the proximal end 17 of the shank 176, which generally has a frustoconical profile. By effectively chamfering or "rounding" the portion of interface 124 adjacent to 8, The interface proximal end 196 is defined. For clarity and consistency, as shown herein. The proximal end 178 of the shank 176 is located in the small diameter portion of the transition region 198 to which the elastic arm 188 extends. It is further defined. Alternatively, the elastic arm 188 extends from the proximal end 178 of the shank 176. Each arm extends to end 200, and the proximal end 178 of the shank 176 is at arm end 200. It is located distal to the other side. The elastic arm 188 will be explained in more detail below.

[0028] As described above, the proximal portion 11 of the drive cannula 114 of the surgical handpiece assembly 62 The illustrated configuration of the 6 bore 122 consists of 6 bore flat sections 122F and 6 bore corner sections 122 It has a generally circular hexagonal profile defined by C (see Figure 18A), and the drill bit The interface 124 of bit 66 is received by the bore 122 and drives the drill bit 66. It is configured to facilitate simultaneous rotation around axis AX with the dynamic cannula 114. The interface 124 of the drill bit 66 has a first interface distance of 204 It includes at least one outermost drive unit 202 separated from the shaft AX (as shown in Figures 29 to 33). (As shown formulaically). In some configurations, the outermost drive unit 202 of interface 124 is It is defined by the outer drive surface 206 that does not face the axis AX. Nevertheless, it is clarified For consistency, the first interface distance 204 and the outermost drive unit 202 are in Of the edges, vertices, points, or surfaces of the surface 124, the one furthest from axis AX It is defined by the following. In some configurations, interface 124 is the first A first outermost drive unit separated from axis AX by an interface distance, and a second interface By including a second outermost drive unit located at a distance from axis AX, the interface The maximum drive dimension of 124 is defined as 208 (schematically shown in Figures 29 to 33). These structures In this configuration, the maximum drive dimension 208 is the "widest" part of the interface 124. The first and second interface distances are the first and second outermost axes relative to axis AX. The first and second outermost drive units are spaced apart from the axis AX so that the arrangement of the moving parts is symmetrical. It may include a common distance. However, in other configurations, the first and second outermost The arrangement of the drive unit may be asymmetrical with respect to axis AX, the first and second interfaces The distances between them do not have to be equal.

[0029] In some configurations, interface 124 is a third interface distance 2 12 comprises at least one outer non-driven drive unit 210 separated from axis AX (Figure 29~ (This is schematically shown in Figure 33). Furthermore, in some configurations, interface 124 The outer non-driven portion 210 is defined by the outer non-driven surface 214, which is composed of several structures In its formation, it may be defined as a planar interface surface. Nevertheless For clarity and consistency, the third interface distance 212 and the outer non-driven part 2 10 is the edge, vertex, point, or surface of interface 124, which is furthest from axis AX. It is defined by elements that are close together and separated. In some configurations, interface 124 This includes a first outer non-drive part separated from axis AX at a third interface distance of 212, and It comprises a second outer non-driven part separated from axis AX at an interface distance of 412. This defines the minimum interface dimension 216 of interface 124 (Figure (Schematically shown in Figures 29-33). In these configurations, the minimum interface dimension is 21 6 is the "narrowest" part of interface 124. The third and fourth interfaces The face distance is such that the arrangement of the first and second outer non-driven parts is symmetrical with respect to the axis AX. This includes a common distance at which the first and second outer non-driven parts are separated from the axis AX. This is also acceptable. However, in other configurations, the arrangement of the first and second outer non-driven parts is on shaft AX. Conversely, the third and fourth interface distances are equal to each other, so that they can be asymmetrical. It is not necessary. Furthermore, the two outer non-driven parts 210 are the two outermost driven parts 2 around the axis AX It is radially separated from 02. However, as is clear from the following explanation, the interface Face 124 is received by the bore 122 of the proximal portion 116 of the drive cannula 114 and simultaneously It is also possible to configure it in other ways sufficient for rotation.

[0030] As an example of the features of the interface 124 described above, see Figures 18C and 20-24B. The interface of the drill bit 66 configuration is shown in Figures 29 and 30, as well as schematically shown in Figures 29 and 30. The face 124 comprises a total of six outermost drive units 202 and a total of six outer non-drive units 210. It has a generally circular hexagonal profile. Here, the six outermost drive units 202 are Each is defined by a circular outer drive surface 206 that defines the corner portion 218. In this configuration, the maximum drive dimension is between the vertices of the two diametrically opposed corners 218. 208 is defined. Furthermore, in this configuration, the six outer non-drive units 210 are each The plane 220 is defined by a substantially flat outer non-driving surface 214. Therefore, in this configuration, the minimum distance between the midpoints of two opposing planes 220 in the diametrical direction is An interface dimension of 216 is defined.

[0031] As will be explained in detail below in relation to Figures 29 to 33, the drill bit 66 of this disclosure The center face 124 is received by the bore 122 and has enough different parts to rotate simultaneously. It is also possible to have a cross-sectional profile or configuration. For this reason, see Figures 2, 4, and 5. See Figures 7C to 7I, 15B, 17C, 18B, 18C, and 20 to 30. The illustrated configuration of interface 124 is as shown in the profile of bore 122 described above. In contrast, although it has a complementary, generally circular hexagonal profile, according to this disclosure, other structures Formation is also possible, and other generally polygonal shapes such as rectangles (see Figure 31) or star shapes (see Figure 32) Rofle, irregular polygon, and / or proximal portion 116 of the drive cannula 114 Other profiles that can be detachably received in the hexagonal bore 122 and rotate simultaneously / Or shape (see Figure 33), but not limited to these.

[0032] As described above, the drill bit 66 of this disclosure extends from the proximal end 178 of the shank 176 It comprises one or more elastic arms 188 extending to the end of the arm 200. The elastic arm 188 of the drill bit 66 is driven by the stopper surface 190 of the drill bit 66. When the proximal portion 116 of the nule 114 comes into contact with the seating surface 192, the surgical handpiece assemblies It is provided to facilitate the axial retention of the drill bit 66 with respect to the hub 62. As will be clear from the following description, the elastic arm 188 is integrally formed with the shank 176. It can also be machined, bent, etc., or formed separately from the shank 176 and welded. Brazing, bonding, joining, or movably attaching the elastic arm 188 to the shank 176 It is also possible to later attach it to the shank 176 by a sufficiently suitable process. That is the case.

[0033] Referring to Figures 20 to 23, the illustrated configuration of the insertion portion 72 of the drill bit 66 is such that the axis AX The outer arm surface 222 which does not face the other, and the retaining surface 22 which faces the distal end 180 of the shank 176 It comprises an elastic arm 188 having 4 and respectively (see Figure 23). Regarding Figures 29 to 33 As will be explained in more detail below, the holding surface 224 of the elastic arm 188 is an interface One of the outermost drive units 202 of face 124 is radially aligned with axis AX. They are arranged in such a way. Furthermore, Figures 7A to 7I, 15A to 19C, and 29 to 19C are shown. As will be explained in more detail below in relation to 33, the elastic arm 188 is in the first position P1( Axis AX between (see Figures 7B and 22) and the second position P2 (see Figures 7D and 7E) It is configured to be movable along the first interval. With a first arm distance of 226 which is greater than the face distance of 204, the outer arm surface 222 is on axis A It moves away from X. At the second position P2, it is smaller than the first arm distance 226. In some configurations, the second arm distance 22 is less than or equal to the first interface distance 204. At 8, the outer arm surface 222 separates from the axis AX. Alternatively, the outer arm of the elastic arm 188 The surface 222 is further away from axis AX than any part of interface 124, and The arm 188 is bendable with respect to axis AX from a first position P1 to a second position P2. At the same time, it is elastically biased toward the first position P1. This will be explained in more detail below. As such, this configuration allows for the release of the drill bit 66 from the surgical handpiece assembly 62. Helps to facilitate possible axial holding, and in some configurations, surgical handpiece By promoting the rotation of the drill bit 66 around the shaft AX when it is attached to the semblage 62, This connects interface 124 to bore 122, and to drill bit 66. It also provides a self-positioning function.

[0034] Continuing from the above example in which interface 124 has first and second outermost drive units, The holding surface may be radially aligned with the first outermost drive unit. First position P1 The outer arm surface 222 of the elastic arm 188 is separated from axis AX by a first arm distance. This may be the case, and this distance is the distance at which the first outermost drive unit separates from the shaft AX. It may be greater than the face distance. Furthermore, outside the elastic arm 188 at the second position P2 The side arm surface 222 may be separated from the axis AX by a second arm distance, and this distance is It may be smaller than the first arm distance and less than or equal to the first interface distance (Figure 2). See 4A and Figure 24B, which will be explained in more detail below.

[0035] In another configuration in which interface 124 has first and second outermost drive units, The gripping surface does not need to be radially aligned with the first outermost drive unit. Rather, the holding surface is The surface may be radially aligned with the second outermost drive unit. The outer arm surface 222 of the elastic arm 188 is separated from the axis AX by a first arm distance. It may be, and in this configuration, this distance is the distance at which the second outermost drive unit separates from the shaft AX. It is greater than the interface distance of 2. Furthermore, elastic arm 1 at the second position P2 The outer arm surface 222 of 88 may be separated from the axis AX by a second arm distance, The distance is smaller than the first arm distance and less than or equal to the second interface distance.

[0036] As best shown in Figure 23, the outer arm surface 222 of the illustrated configuration has a top view profile The arm is generally rectangular and is positioned between the arm end 200 and the holding surface 224. Naturally, the outer arm surface 222 can be realized through other configurations, profiles, arrangements, etc. It is also possible to do so. For clarity and consistency, the outer arm surface 222 is the elastic arm Of the surfaces, faces, edges, vertices, or points of 188, the elastic arm 188 is at the first position P1 In some cases, the axis is defined by the element furthest from axis AX.

[0037] Continuing with Figures 20 to 23, the elastic arm 188 extends distally from the arm end 200. It further includes an inclined surface 230 that extends in the direction and integrates with the outer arm surface 222. The elastic arm 188 is bent relative to the axis AX in response to engagement, contact, abutment, etc. Shape and arrangement. As an example, in the illustrated configuration, the drive cannula 114 The inclined surface 230 is formed and positioned to engage with the tapered seat surface 192 of the proximal portion 116. By being positioned (see Figure 7C), the drill bit 66 is connected to the surgical handpiece assembly. When attached to 62, the elastic arm 188 moves from the first position P1 to the second position P2. Move it (compare Figures 7B to 7D in order). Similarly, in the illustrated configuration, release member 1 When 64 moves distally along axis AX, the actuation element of the release assembly 150 The inclined surface 230 is formed and positioned to engage with 174 (Figure 7G and (See Figure 7H) Move the elastic arm 188 to the second position P2 side, and the surgical handpiece To facilitate the removal of the drill bit 66 from assembly 62 (Figures 7F to 7I in sequence) comparison).

[0038] Referring here to Figures 20 to 24B, the illustrated configuration of the elastic arm 188 is as follows: Arm body 2 It includes 32 and a finger section, the whole of which is shown as 234. In one exemplary configuration, the arm Body 232 has a generally arched portion which integrates with the proximal end 178 of the shank 176. It has a linear profile. As best shown in Figure 22, the arm body 232 is It extends away from the proximal end 178 of the shank 176. In the illustrated configuration, this configuration So, when defined with respect to axis AX and the elastic arm 188 is in the first position P1, generally When the elastic arm 188 is at an angle, the arm position angle 23 is generally vertical when the elastic arm 188 is in the second position P2. The retaining surface 224 is positioned at 6 (see Figure 22). However, the insertion part 72 and the drive cannula 1 This is evident from the following description of the interaction between the proximal portion 116 and the output hub 96 of 14. Thus, the holding surface 224 is relative to the axis AX when the elastic arm 188 is in the second position P2. It is also possible to arrange or configure them in other ways, such as at non-vertical angles. Other configurations are also possible. Furthermore, in the illustrated configuration, the arm body 232 is separated from the axis AX to the arm end 200. It extends in a manner that it extends, but in the alternative configuration of the drill bit 66, it extends generally parallel to the axis AX. It is also considered possible that it will extend. In other configurations, the holding surface 224 is attached to the elastic arm 188. It can be positioned or configured relative to the elastic arm 188 at an angle of 80°. However, the holding surface can be either more than 80° or less than 80° relative to the elastic arm. It can be positioned at any suitable angle.

[0039] The finger portion 234 of the elastic arm 188 is formed at the arm end 200, and as shown in the figure In the configuration, the outer arm surface 222, the holding surface 224, and the inclined surface 230 are provided or To define. As shown in Figure 22, the finger portion 234 is generally located away from axis AX and outward. It protrudes to the surface 222. As shown in Figure 23, the finger portion 234 has a finger width of 240 They are spaced apart from each other and define a pair of outer finger surfaces 238 that are generally perpendicular to the holding surface 224. However, naturally, the finger section 234 has a triangular profile, a rectangular profile Many other suitable profiles, such as circular profiles, pentagonal profiles, or other suitable profiles. It is also possible to configure it in a different way.

[0040] In the illustrated configuration, the finger portion 234 is positioned adjacent to the arm end 200, The body is further equipped with alignment elements indicated by 242. Alignment element 242 is the finger part It may be positioned at different locations on the elastic arm 188, excluding 234. Furthermore, the projectile Not all of the sex arms 188 have alignment elements 242. As is clear from the above, the alignment element 242 is at least a portion of the outer arm surface 222, tilted At least a portion of the slope 230, and / or the outer arm surface 222 and the inclined surface 230 It may include one or more planar arm surfaces 244 arranged adjacent to it (Figure (See Figures 20-23). ​​Here, the planar arm surface 244 is the second position of the elastic arm 188. When in P2, each plane 220 of the outer non-driving surface 214 of the interface 124 is generally They are arranged so as to be on the same plane (see Figure 24B). In some configurations, position The joining element 242 may include a single planar arm surface 244. Furthermore, positional alignment The illustrated configuration of the joint element 242 is a generally planar arm surface 244 positioned between two planar arm surfaces 244. While a shaped outer arm surface 222 is adopted, other configurations are naturally possible. As a typical example, the outer arm surface 222 is a non-planar arm surface formed in a wedge shape or the like. The interface 12 is defined by the elastic arm 188 when it is in the second position P2. One of the outermost drive units 202 of 4 is radially aligned (for example, the same It can also be realized as discrete edges or discrete points arranged in a straight line. (Figure) In some configurations as shown in the diagram, the alignment element 242 is located on the elastic arm 18 To mimic, depict, or complement interface 124 when 8 is at the second position P2. It is molded in such a way. Other configurations are also possible. For example, the configuration shown in Figure 32, axis A Interface with a star-shaped profile having multiple drive lobes 245 spaced apart around X. When 124 is configured, the alignment element 242 moves one of the drive lobes 245 slightly Profiles that partially replicate or complement the original (e.g., triangular profiles) It may have.

[0041] The alignment element 242 is positioned along axis AX when attached to the surgical handpiece assembly 62. In response to the force applied to the drill bit 66 along the elastic arm 188 moves to the first position P1 When moving from the first position to the second position P2, at least part of the drill bit 66 around axis AX It is employed to facilitate fractional rotation. More specifically, see Figures 24A and 24B. As shown, in response to the engagement of the proximal portion 116 of the drive cannula 114 with the tapered seat surface 192 When the elastic arm 188 moves toward the second position P2, the alignment element 242 One or more parts of the elastic arm are arranged in contact with the tapered seat surface 192. If M188 is curved away from the first position P1, then the potential energy Because it is stored there, it is driven from the tapered seat surface 192 of the proximal part 116 of the drive cannula 114. The positioning element 242 advances into the bore 122 of the proximal part 116 of the cannula 114. The alignment is achieved by contact between the tapered seat surface 192 and one or more parts of the alignment element 242. This facilitates at least partial rotation of the drill bit 66 relative to the drive cannula 114. Therefore, when the elastic arm 188 enters the bore 122, the corner portion 122C of the bore The outer arm surface 222, which is biased toward one of the axes, causes the drill bit 66 to move around the axis AX. At the point of rotation, the drill bit 66 "self-aligns" with the bore 122, and position Each of the planar arm surfaces 244 of the joining element 242 is engaged with the adjacent bore flat portion 122F. Combine them (compare Figure 24A and Figure 24B).

[0042] In this configuration, the elastic arm 188 is at a first position of the first arm distance with respect to the axis AX. From position P1 to the second position P2 (Figure 24B) at the second arm distance relative to axis AX, indirectly It moves to... More specifically, the elastic arm 188 moves from the first position P1 relative to axis AX. Move directly to the third position P3 (Figure 24A) at the third distance, and from the third position P3, the second It can move directly to the position (Figure 24B). The first arm distance relative to axis AX is the outermost drive unit The first interface distance between 202 and axis AX may be greater than 204. The third arm distance relative to is the first arm distance and the first interface distance 20 4. Each of these may be smaller. The second arm distance relative to axis AX is equal to the third arm distance. It may be greater than or equal to the first interface distance of 204 or less.

[0043] When the elastic arm 188 is positioned in the third position, the outer arm surface 222 is in the bore flat portion. It engages with one of the 122F. The elastic arm 188 is biased to move away from axis AX. Therefore, the outer arm surface 2 from the bore flat portion 122 to one of the bore corner portions 122C Due to the movement of 22, the elastic arm 188 moves from the third position (Figure 24A) to the second position (Figure 24A). By moving to 24B), the drill bit is rotated to align with the bore. However, prior to insertion into the bore, the drill bit is already aligned with the bore, and the shaft If a force is applied to the drill bit 66 along AX, the first position P1 will move to the second position The elastic arm can move directly to P2.

[0044] When the elastic arm 188 is in the second position P2, the planar arm surface 244 is the interface Since the face 124 is generally on the same plane as the plane 220, the finger portion 234 is in the bore 1 Once it is received by 22 and the outer arm surface 222 is received by one of the bore corners 122C, The aforementioned rotation drives the interface 124 of the drill bit 66 to the cannula 11. It "works in conjunction" with the bore 122 of the proximal part 116 of 4. This configuration is the proximal part of the drive cannula 114 The "self-position" of the interface 124 of the drill bit 66 to the bore 122 of the position part 116 The end effector assembly 64 is aligned with the surgical handpiece assembly 62 by "matching". While it offers advantages in terms of attachment, naturally, the drill bit 66 is, Different types of alignment elements 242 and / or finger parts 234, etc., are composed in other ways. It is also possible to do so. As a non-limiting example, in some configurations, the drill bit From T66, the alignment element 242 and / or finger portion 234 may be omitted. It is a Noh play. Other configurations are also possible.

[0045] Now, referring to Figures 15A to 19C, as described above, the proximal part 1 of the drive cannula 114 16 works in cooperation with the output hub 96 of the actuator assembly 82 to drive the output hub 96. Spline engagement with cannula 114 facilitates rotation of drill bit 66 around axis AX. The output hub 96 is located at the distal end of the hub 2, as best shown in Figures 15A and 17A. It extends between 46 and the proximal end 248 of the hub, and is adjacent to the integrated carrier 104 from the distal end 246 of the hub. And toward the proximal end 248 of the hub, one branch extends away from the proximal end 248 of the hub It has multiple internal splines 250. Here, the output hub 96 has internal splines 2 50 extends inward and terminates distally from the proximal end 248 of the hub, along the internal spline 250 A lockout taper 252, which has a generally frustoconical profile and integrates with it, is provided. It is being done.

[0046] Continuing with Figures 15A and 17A, the proximal portion 116 of the drive cannula 114 is , the distal end 254 of the proximal part 116 of the drive cannula 114 and the proximal part It extends between the proximal end 256 of 116. Here, the tapered seat surface 192 is at the distal end 25 It is formed at 4 and, as described above, tapers into the interior of the hexagonal bore 122. On the other hand, The bore 122 extends along the axis AX toward the proximal end 256. In some configurations, The proximal portion 116 of the drive cannula 114 is tapered in the same way as the inside of the hexagonal bore 122. As a result (see Figure 17A), the drill bit 66 is removed from the surgical handpiece assembly. A release taper 258 is provided to facilitate removal. The spline engagement is driven by a cannula. - One or more grooves or drive crabs formed by the outer surface of the proximal portion 116 of the 114 This is facilitated by one or more projections extending from the outer surface of the proximal portion 116 of the ure 114. In one configuration shown in Figure 15A, one or more protrusions have a proximal end 256 An external sprue extends toward the distal end 254 and is formed to separate from the distal end 254. Includes in 260. The external spline 260 has a release taper 258 at the proximal end 256. A locking surface 262 adjacent to the elastic arm 188 is defined. The locking surface 262 defines the holding surface 224 of the elastic arm 188. It contacts the and axially locks the drill bit 66 to the surgical handpiece assembly 62. They are arranged in such a way. The specific shapes of the internal and external splines and The arrangement is such that the locking surface is still present and the drive interface is engaged when it is received in the bore. As long as the toe face is positioned relative to the bore so that it can access the bit-holding face, different It can be adjusted to the desired arrangement or shape. In some configurations, the release taper 2 58 and the locking surface 262 are integral and contact the holding surface 224 of the elastic arm 188. They cooperate to form a holding surface for the proximal portion 116 of the drive cannula 114, which is configured in such a way. The retaining surface of the proximal portion 116 of the drive cannula 114 is oriented from the proximal direction to the distal direction, along the axis AX. The tapered shape that separates from the drill bit 66 prevents unintended release from the drive cannula 114. Stop.

[0047] In one configuration best shown in Figures 15B, 17A, and 17C, the proximal end 256 is It is located distally from the proximal end 248 of the output hub 96. Drive cannula 114 Similarly, the locking surface 262 of the proximal portion 116 is also spaced distally from the proximal end 248 of the hub. Furthermore, it is also distally separated from the lockout taper 252 of the output hub 96. Due to the configuration, the holding surface 224 of the elastic arm 188 and the proximal portion 116 of the drive cannula 114 By engaging with one of the locking surfaces 262, the proximal portion 116 of the drive cannula 114 also The drill bit 66 is held axially without engagement with other parts of the output hub 96. i is the lockout taper 252 of the output hub 96 and the proximal portion 1 of the drive cannula 114 The 16 release taper allows the elastic arm 188 to hold the drill bit 66 axially. The parts are positioned and configured such that contact engagement with the retaining surface 224 is not maintained. Furthermore, Figure 1 As generally shown in Figures 7A to 19C, the external splint of the proximal portion 116 of the drive cannula 114 In 260 is positioned radially around axis AX relative to bore 122. The external spline 260 of the proximal portion 116 of the drive cannula 114 defines the locking surface 262. Furthermore, the bore 122 is positioned radially adjacent to the bore corner 122C. Therefore, the holding surface 224 of the elastic arm 188 engages with one of the locking surfaces 262. Therefore, the outermost drive unit 202 of interface 124 is radially aligned around the axis. It is necessary. The specific shape and arrangement of the proximal portion 116 of the drive cannula 114 and the output hub 96 are such that as long as the locking surface still exists and the drive interface is received in the bore and the locking surface is arranged with respect to the bore so as to be accessible to the holding surface of the bit, it can be adjusted to have different arrangements or shapes.

[0048] Referring now to FIG. 15D, an alternative embodiment of the drive cannula and output hub is illustrated and described. The proximal portion 116' of the drive cannula 114' cooperates with the output hub 96' of the actuator assembly to facilitate rotation of the drill bit about the axis AX by spline engagement between the output hub 96' and the drive cannula 114'. The output hub 96' extends between a hub distal end 246' and a hub proximal end 248', and includes one or more internal splines 250' that extend from the hub distal end 246' adjacent to the integrated carrier 10 4' towards the hub proximal end 248' and spaced apart from the hub proximal end 248'. Between each pair of splines 250' there may be a recess 251. There may also be a pocket 253 that provides a gap for the elastic arm to bend outward in an axially aligned state with these recesses. Here, the output hub 96' is provided with a lockout taper 252' having a generally frustoconical profile that extends internally so that the internal spline 250' terminates distally from the hub proximal end 248' and is integrated with the internal spline 250'. Continuing to refer to FIG. 15D, the proximal portion 116' of the drive cannula 114' is such that the distal end 254' of the proximal portion 116' of the drive cannula 114' and the proximal portion 1 of the drive cannula 114'

[0049] of the drive cannula 114' of the drive cannula 114' extends between the proximal end 256' of the 16'. Here, the tapered seating surface is formed at the distal end 254 and is tapered into the interior of the hexagonal bore 122' as described above. On the other hand, the bore 122' extends along the axis AX towards the proximal end 256'. In some configurations is formed and, as described above, is tapered into the interior of the hexagonal bore 122'. On the other hand, the bore 122' extends along the axis AX towards the proximal end 256'. In some configurations , the proximal portion 116' of the drive cannula 114' is similarly tapered into the interior of the hexagonal bore to facilitate the release of the drill bit from the surgical handpiece assembly. A relief taper 259 is provided. The spline engagement is facilitated by one or more grooves formed by the outer surface of the proximal portion of the drive cannula 114' or one or more protrusions extending from the outer surface of the proximal portion 11 6 of the drive cannula 114. In one configuration shown in FIG. 15D , the one or more protrusions include an external spline 260' that extends from the proximal end 256' towards the distal end 254' and is formed to be spaced apart from the distal end 254'. The external spline 260' defines a locking surface 262' that is adjacent to the relief taper 259 at the proximal end 256'. The locking surface 262' is radially aligned and at least partially axially aligned. The relief taper 259 may be defined by a protrusion 261 that extends in the proximal direction with respect to the locking surface 262'. The locking surface 262' abuts against the retaining surface 224 of the elastic arm 188 and is arranged to axially lock the drill bit 66 with respect to the surgical handpiece assembly 62. The specific shape and arrangement of the internal spline and the external spline can be adjusted to have different arrangements or shapes as long as the locking surface still exists and is arranged with respect to the bore such that the locking surface is accessible to the retaining surface of the bit when the drive interface is received in the bore and the drive interface is received in the bore. In some configurations, the internal spline and the external spline can be adjusted to have different arrangements or shapes as long as the locking surface still exists and is arranged with respect to the bore such that the locking surface is accessible to the retaining surface of the bit when the drive interface is received in the bore and the drive interface is received in the bore. In some In this configuration, the release taper 259 and the locking surface 262' are integrated, and the elastic arm The retaining surface of the proximal portion 116' of the drive cannula 114' is configured to contact the retaining surface of They cooperate to form a drill. The locking surface of the proximal portion 116' of the drive cannula 114 is a drill To prevent unintended release of the bit from the drive cannula 114', from the proximal to distal direction The direction may be perpendicular to the axis AX.

[0050] In this configuration, the proximal end 256' is distal to the proximal end 248' of the output hub 96'. They are separated in that direction. The same applies to the locking surface 262' of the proximal portion 116' of the drive cannula 114'. Furthermore, it is located distally from the proximal end 248' of the hub, and the locking mechanism of the output hub 96' It is also separated distally from the outtaper 252'. Release taper 259 and thus projection 2 The proximal end of 61 is also separated distally from the lockout taper 252 of the output hub 96'. They are separated. This configuration allows the holding surface of the elastic arm and the proximal part 1 of the drive cannula 114' to be separated. The proximal part of the drive cannula 114' engages with one of the locking surfaces 262' of 16'. The drill bit is held axially without engagement with any other part of section 116' or output hub 96'. Alternatively, the output hub has a 96' lockout taper of 252' and the drive cannula The 114' release taper 259 allows for the elastic arm to hold the drill bit axially. The bore 122' is positioned and configured such that contact engagement with the retaining surface is not maintained. Since the locking surface 262' is positioned radially adjacent to the corner 122C, The retaining surface of the sex arm engages with one of the locking surfaces, thus driving the outermost interface. The part and axis need to be aligned radially.

[0051] As will be clear from the following description, the insertion portion 72 of the drill bit 66 is a surgical handpiece Even if it is configured in enough different ways to be removably attached to the assembly Good. As a non-limiting example, some of the illustrated configurations shown in Figures 20 to 23. In this configuration, the insertion portion 72 is positioned radially relative to each of the outermost drive portions 202 of the interface 124. A pair of generally identical and diametrically opposed surfaces, each having a aligning holding surface 224. It is equipped with an elastic arm 188. However, naturally, other configurations are also possible. As a typical example, the insertion part 72 rotates around the axis AX at 60° or intervals, and the outermost drive part 202 It is also possible to include two elastic arms 188 that are radially separated from the (Figure 3) (Generally schematically shown in Figures 32 and 33). 15°, 30°, 45°, or so Other spacings are also possible, such as the intervals between each other. In some configurations, the elastic arm 188 One of the outermost drive units 202 is positioned within 15° of each other with respect to axis AX. ru.

[0052] Furthermore, the insertion portion 72 has holding surfaces 224 of different shapes, sizes, or angles, and finger portions. Multiple elastic arms, such as 234 and alignment element 242, with different or similar configurations. It is also possible to include 188 (schematically shown in Figure 30). Furthermore, naturally However, the insertion portion 72 has a single elastic arm 18, as shown in the configuration of Figures 25 and 26. It is also possible to have 8, or to have 3 elastic arms 188, as shown in Figures 27 and 27. As shown in configuration 28, it is also possible to have three or more elastic arms 188. In addition, the configurations of the interface 124 schematically shown in FIGS. 32 and 33 can each have one to six elastic arms 188. Further, some of the configurations of the interface 124 are radially spaced from each other around the axis AX and include elastic arms 188 having similar or identical profiles, but other configurations are also conceivable. As an example, the interface 124 schematically shown in FIG. 30 can include five elastic arms 188 of various configurations (for example, with retention surfaces 224 of different profiles and orientations), as shown. Other configurations are also conceivable. <00!0974>

[0053] The illustrated drill bit 66 is configured as a twist drill with spiral grooves 182 that facilitate tissue penetration, but in some configurations, other types of cutting tips 70 can be employed. For example, the cutting tip 70 can be realized as a bar, reamer, tap, screw driver, etc. Further, as shown in the configuration of FIG. 28, the drill bit 66 can further include a drill cannula 264 extending along the axis AX so as to be cannula-mounted in some configurations.

[0054] As described above, the interface 124 of the drill bit 66 of the present disclosure can have a sufficient number of different cross-sectional profiles or configurations to be received in the bore 122 and rotate simultaneously. In some configurations, the interface 124 can include a different number of planes 220. As an example, the configurations of the interface 124 shown in FIGS. 29 to 32 each include at least four planes 220 (six in the configurations shown in FIGS. 29 and 30). <?!0987> ​​​​​​​​In the configuration shown in Figure 31, there are four; in the configuration shown in Figure 32, there are twelve. However, other The configuration will use three or fewer planes 220, such as the configuration shown in Figure 33 which has two planes. This is also acceptable. Naturally, interface 124 and / or plane 220 Other arrangements and configurations are also possible.

[0055] In some configurations, the interface 124 defines the outermost drive unit 202. It may have a number of corners 218. As an example, the interface shown in Figures 29 and 30 The configuration of the face 124 is generally hexagonal, and each part defines the outermost drive section 202. It has six corners 218. The interface 124 shown in Figure 31 is generally rectangular. The outermost drive unit 202 is defined by four corners 218. The interface shown in Figure 32 The S124 is generally star-shaped and includes corners 218 that define the outermost drive section 202. It is equipped with six drive lobes 245. It terminates at a corner 218 defined by a point or vertex, etc. In a configuration in which the interface 124 is equipped with drive lobes 245, at least two The drive lobe 245 may define the outermost drive unit 202. However, as described above, The interface 124 has three drive lobes 245, and five or more drive lobes 245. Other configurations are also possible in certain cases. The interface shown in Figure 33 connects the outermost drive unit 202 It has an irregular shape with a single corner 218 that is defined. Other arrangements and configurations of the outermost drive unit 202 are also possible.

[0056] Here, referring to the configuration of the insertion portion 72 of the drill bit 66 schematically shown in Figure 29, elastic One of the holding surfaces 224 of the arm 188 and the outermost drive unit 2 of the interface 124 One of the outer drive surfaces 206 of 02 intersects with axis AX, with the retaining surface 224 and elastic a Two equal parts of section 188, as well as the outer drive surface 206 and the outermost drive section 202 It has or defines a common bisector plane CBP that defines the equal parts of, or this It is aligned with the bisecting plane CBP. Naturally, the symmetry relationship described above is illustrative. Yes, other configurations are also possible.

[0057] Here, referring to the configuration of the insertion portion 72 of the drill bit 66 schematically shown in Figure 32, elastic One of the holding surfaces 224 of the arm 188 and one of the drive lobes 245 One is a set of two equal parts of the holding surface 224 of the elastic arm 188, intersecting with axis AX. Two equal parts of the outermost drive unit 202 are defined (here, the triangular drive lobe 245 It has or defines a common bisector plane CBP (defined by the vertices of), or It is aligned with the bisecting plane CBP as shown above. Similarly in this case, naturally, The symmetrical relationship described is illustrative, and other configurations are also possible.

[0058] Here, referring to the configuration of the insertion portion 72 of the drill bit 66 schematically shown in Figure 31, elastic One of the holding surfaces 224 of the arm 188 intersects with axis AX, and the two holding surfaces 224 It comprises or defines a first bisecting surface FBP that defines an equal portion, or It is aligned with the bisecting plane FBP. Furthermore, the outermost drive unit of interface 124 One of the 202s intersects with axis AX, defining two equal parts of the outermost drive unit 202 (Here, it is defined by two vertices of the corner 218 of the rectangular profile) A second bisecting surface SBP is provided or defined, or such a bisecting surface FBP is provided Aligned. In this configuration, the second bisector plane SBP is the first bisector plane around axis AX. It is located approximately 60° radially away from the bisecting plane FBP. Therefore, as mentioned above, the elastic arc The retaining surface 224 of M188 is at an interval of approximately 60°, the outermost drive part 2 of interface 124 It may also be radially aligned with 02. In this case as well, other configurations are also possible. ru.

[0059] Referring to Figure 2, in one configuration, interface 124 is an interface - Interface defined between the distal end 194 and the proximal end 196 of the interface It has a long IL, and the shank 176 is defined between the distal end 180 and the proximal end 178. It has a shank length SL, and the shank length SL is 3 times or more the interface length IL. As is obvious to those skilled in the art, the shank length SL is at least five times the interface length IL. Other configurations for the drill bit 66 are also possible in certain cases. See Figure 22 for reference. In the illustrated configuration, the retaining surface 224 has a retaining distance RD that is greater than or equal to the interface length IL. It is separated from the interface proximal end 196. In this case as well, other configurations can also be considered. It is possible.

[0060] Now, referring to Figures 1, 2, and 34, as described above, in some embodiments... So the tip protection device 68 hides at least a portion of the cutting tip 70 of the drill bit 66. Sea urchin, drill bit for drive cannula 114 of surgical handpiece assembly 62 To facilitate the removable mounting of 66, the tip of the end effector assembly 64 A protective device 68 is provided. Therefore, the user grips the tip protective device 68 and the drill bit By operating the T66, the surgical handpiece assemblies can be operated without touching the cutting tip 70. After facilitating attachment to the hub 62, the tip protection device 68 is removed from the cutting tip 70. This is possible. For this reason, as shown in Figure 36, the tip protection device 68 is generally used by the user. The handle 266 is configured to be gripped by the cutting tip 7 of the drill bit 66. It comprises a receptacle 268 capable of accepting 0.

[0061] In the configuration of the tip protection device 68 shown in Figures 1, 2, and 34 to 36, Figure 36 shows As best illustrated, the handle 266 is integrally mounted so as to be axially movable, such as by press-fit engagement. It comprises a first handle body 270 and a second handle body 272. The handle body 270 defines a handle bore 274 that extends along the handle shaft HA. Within the dolbore 274, the receptor 276 is rotatably supported and engages in frictional mating, etc., drill It includes a receptacle 268 capable of receiving the cutting tip 70 of bit 66. The receptor 276 is located adjacent to the second handle body 272 of the first handle body 270. It is equipped with a flange 278 that abuts against the part. The second handle body 272 is the first handle The furan of the receptor 276 defines a recess 284 between the main body 270 and the stepped region 282. The structure includes a tapered entrance 280 that extends inward to a stepped area 282 adjacent to the 278. The flange 278 is connected to the handle bore 274 along the handle shaft HA, and the receptor 276 It is arranged within the recess 284 so that its parallel movement is restricted. Therefore, the receptor 27 6 is rotatable around the handle shaft HA within the handle bore 274 without rotation of the handle 266. It is Noh.

[0062] When the cutting tip 70 is positioned inside the receptacle 268, the drill bit 66 is a receiver Simultaneously with the body 276, the handle shaft HA rotates effectively. Here, the user cuts the target Without touching the end portion 70, grip the handle 266 and the drill bit 66. It can be attached to the surgical handpiece assembly 62. Furthermore, in this configuration The relative rotation between the handle 266 and the drill bit 66, as shown in Figures 24A and 24. In relation to B, the "self-aligning" feature of the drill bit 66 described above is complemented. The interlocking of the interface 124 with respect to the bore 122 via the alignment element 242 is In this configuration, rotation can be generated without returning the handle 266, and this Therefore, efficient attachment of the drill bit 66 to the surgical handpiece assembly 62 Injuries are exacerbated.

[0063] As described above, the tip protection device 68 facilitates the operation of the drill bit 66 in many different ways. It can be constructed by law. For example, the configuration of the tip protection device 68 shown in Figures 37 and 38 Furthermore, the first handle body 270 and the second handle body 272 of the handle 266 are It is integrally mounted so as to be movable in the lateral direction by a connecting mechanism, adhesive, joining, etc. In this configuration, the flange 278 is housed, and the axial movement of the receptor 276 relative to the handle 266 is controlled. A recess 284 is similarly provided to limit the cutting tip 70 of the drill bit. The receptacle 268 is similarly constructed so that it can be released by frictional engagement or the like. It has been done.

[0064] The configuration of the tip protection device 68 shown in Figures 39 and 40 is such that the handle 266 is a receptacle It is realized as a single, integrated component that defines 268, but this is Han Where relative rotation between the dollar 266 and drill bit 66 is undesirable or unnecessary. It is available in relation to the combined configuration. Several configurations are available, such as a configuration with a single tip protection device 68. In this configuration, at least a portion of the tip protection device 68 may be elastically deformable. The cutting tip 70 may be tapered or stepped to accommodate different sizes. And other configurations are also possible. Naturally, these features are as shown herein. It can also be used in conjunction with other types of tip protection devices 68.

[0065] The configuration of the tip protection device 68 shown in Figures 41 and 42 is a single magnet 286. An integrated handle 266 is adopted. Here, the receptacle 268 is connected to the handle 266. It is similarly defined and extends along the handle shaft HA between the magnet 286 and the inlet 280. If the rill bit 66 is made of a ferromagnetic material, the magnet 286 pulls the cutting tip 70. By bringing them closer together, it facilitates the release of the retaining mechanism between the tip protection device 68 and the drill bit 66. This will proceed. Here, naturally, receptacle 268 will be drill bit 6 This allows for a loose fit with 6, and the magnet 286 holds the drill bit 66 in the axial direction. The sizes are designed to facilitate relative rotation between the drill bit 66 and the handle 266. It may be fixed. In some configurations, such as when magnet 286 is relatively strong, Putakl 268 is sized to accommodate cutting tips 70 of various sizes, diameters, etc. It may be set.

[0066] The configuration of the tip protection device 68 shown in Figures 43 and 44 is related to Figures 35 and 36. A handle 266 configured in the same manner as the tip protection device 68 described above is adopted. In this configuration, the sleeve 288 is supported within the first handle body 270. This is also fine. Here, the sleeve 288 rotatably supports the receptor 276 and the second handle In cooperation with the main body 272, it defines the recess 284 in which the flange 278 is disposed. (See Figure 41) Similar to the configuration of the tip protection device 68 described above in relation to Figure 42, the cutting of the drill bit 66 A magnet 286 is used to help hold the tip 70. However, in this configuration, Magnets 286 are arranged radially around the dollar axis HA, providing magnetic attraction to the drill bit 66. In addition to providing a cutting edge, in some configurations, various sizes and diameters of cutting tips are available. This facilitates the retention of 70. For example, the arrangement of this magnet 286 makes it easier to hold receptor 276 The cutting tip 70, which has a smaller diameter than the receptacle 268, is in both the axial and lateral directions. It may be designed to be held in place.

[0067] The configuration of the tip protection device 68 shown in Figures 45 and 46 is related to Figures 43 and 44. A handle 266, a first handle body 270, similar in configuration to the tip protection device 68 described above, A second handle body 272 and sleeve 288 are used. However, in this configuration The receptor 276 is connected to one or more elastic tabs 290 extending inward to the handle shaft HA. It is equipped with the following. When the cut end 70 is inserted into the receptacle 268, the elastic tab 29 Point 0 contacts the cutting tip 70 and applies force. Therefore, naturally, this tip protection The configuration of the device 68 includes a removable attachment for the cutting tip 70 of various sizes and diameters. It can also be used for attachments.

[0068] Figures 7A to 7I show the drill bit 66 being attached to the surgical handpiece assembly 62. Afterward, the process involves removing the drill bit 66 from the surgical handpiece assembly 62. The specific steps are shown in order. Figure 7A shows the hand with the drill bit 66 completely removed. This shows various parts of the surgical handpiece assembly 62.

[0069] Figure 7B shows a drill bit partially inserted into the surgical handpiece assembly 62. This shows the insertion part 72 of 66. Although not shown in this figure, naturally, Insertion of the drill bit 66 is relative to the drill bit 66 and the handle 266 as described above. To enable rotation and other functions, the tip protection device 68 is removable from the cutting tip 70. It is convenient that it can be performed while installed. Here, in Figure 17B, Between the forward cannula 134 and the distal end 254 of the proximal part 116 of the drive cannula 114 The end 200 is positioned axially, away from the proximal end 178 of the shank 176. The elastic arm 188 is shown in an extended state. The elastic arm 188 is in the first position P1 It is shown in its arranged state.

[0070] In Figure 7C, the drill bit 66 is (compared to Figure 7B) a surgical handpiece assembly. It is progressing further into the 62. Here, the inclined surface 230 of the elastic arm 188 is driven The proximal portion 116 of the dynamic cannula 114 abuts against the seating surface 192 and is bent toward the axis AX. It is shown in the manner.

[0071] In Figure 7D, the drill bit 66 is (compared to Figure 7C) a surgical handpiece assembly. It is progressing further into the 'mbri 62. Here, the outer arm surface 222 of the elastic arm 188 This shows the drive cannula 114 in contact with the bore 122 of the proximal portion 116. As is clear from the above description regarding the alignment element 242, interface 1 There is no engagement, contact, or abutment between 24 and bore 122, and the drive cannula 114 The interface 124 of the drill bit 66 is linked to the bore 122 of the proximal portion 116. This means that. Furthermore, in Figure 7D, the elastic arm 188 is positioned at the second position P2. It is shown in its placed position.

[0072] In Figure 7E, the drill bit 66 is (compared to Figure 7D) the surgical handpiece assemblies. We are proceeding further into Nburi 62. Here, the interface of interface 124 - The proximal end 196 enters the bore 122 of the proximal portion 116 of the drive cannula 114. Similarly, in Figure 7E, the elastic arm 188 is positioned at the second position P2. This is shown.

[0073] In Figure 7F, the drill bit 66 is (compared to Figure 7E) the surgical handpiece assemblies. The whole is moving into the 62. Here, the elastic arm 188 moves away from axis AX. In that direction, from the second position P2 towards the first position P1 (or, in some configurations, It is shown in the state where it has bent back to the first position P1. As mentioned above, this drives An elastic arm is attached to the locking surface 262 provided at the proximal end 256 of the proximal portion 116 of the cannula 114. Because the holding surface 224 of 188 makes contact, the distal movement of the drill bit 66 along the axis AX Movement is prevented. Furthermore, the stopper surface 190 of the drill bit 66 and the drive cannula 114 The drill bit 66 is brought into contact with the seating surface 192 of the proximal portion 116 of the surgical handpiece. Further axial movement into assembly 62 is prevented. Therefore, as shown in Figure 7F... Then, the drill bit 66 is axially locked to the drive cannula 114. The interface 124 of the drill bit 66 is the proximal portion 116 of the drive cannula 114 Since it is positioned inside the bore 122, the drill bit 66 is positioned relative to the drive cannula 114. It is also locked in the rotational direction. Therefore, in the orientation shown in Figure 7F, the surgical handpiece The drill bit 66 can be rotated using assembly 62.

[0074] In Figure 7G, the drill bit 66 is positioned in the same axial position as in Figure 7F, The elastic arm 188 is operated by the release assembly 150 (compared to Figure 7F) to drill the To facilitate removal of the 66 from the surgical handpiece assembly 62, axis A It is shown in the state where it has bent back towards the X side. More specifically, in Figure 7G, the release assemble As a result of the rotation of collar 162 of ri 150, the release member 164 moves parallel in the axial direction, and the operation The release surface 175 of element 174 comes into contact with the inclined surface 230 of the elastic arm 188, Arm 188 is bent back towards axis AX.

[0075] In Figure 7H, the drill bit 66 is positioned forward from the axial position shown in Figures 7F and 7G. The elastic arm 188 is slightly pushed (distally), and (compared to Figure 7G) axis A It is shown in a state where it has bent back further towards the X side. Here, in Figure 7H, the release assembly As a result of further rotation of collar 162 of ri 150, the release member 164 is further paralleled in the axial direction. By moving, the elastic arm 188 bends back further toward axis AX, and the drive cannula From contact with the locking surface 262 provided on the proximal end 256 of the proximal portion 116 of 114, the elastic arm The retaining surface 224 of the 188 is released, so the drill bit 66 surgical handpiece assembly Removal from the Buri 62 will be easier.

[0076] In Figure 7I, the drill bit 66 is released by the release assembly 150, ( (Compared to Figure 7H) It is receding in the axial direction. Here, in Figure 7I, elastic arm 188 It is positioned at the second position P2 and at the proximal end 256 of the proximal portion 116 of the drive cannula 114. They are shown in an adjacent arrangement. Here, in Figure 7I, the elastic arm 188 The retaining surface 224 is not in contact with the locking surface 262 of the proximal portion 116 of the drive cannula 114. From this, the drill bit 66 can be removed from the surgical handpiece assembly 62. In some configurations, the elastic arm 188 bends toward the second position P2 and locks into place. The potential energy stored when 262 is not in contact with the other element is shown in Figure 7F. The drill bit is pushed distally forward from the axial position shown in Figure 7G (i.e., This will result in the drill bit 66 releasing assembly 150. This is particularly convenient because it can be unlocked by the user with one hand. In other words, The user does not need to grip the drill bit 66. Alternatively, the assembly 15 can be released with one hand. While operating the 0 to release the drill bit 66 from the drive cannula 114, use your other hand This directly affects the movement of the drill bit 66.

[0077] Thus, the end effector assembly 64 described herein and illustrated in the drawings is In relation to facilitating the removable attachment to the surgical handpiece assembly 62, It brings about significant advantages. Specifically, and naturally, the drill bit 66 of this disclosure is inserted After guiding part 72 to the proximal part 116 of the drive cannula 114, force is applied along axis AX. By adding this, the surgical handpiece assembly 62 can be easily and efficiently and reliably attached. It can be attached to. Furthermore, naturally, the tip protection device described herein When used in conjunction with the drill bit 66, 68 drives the insertion part 72 of the cannula 114. It guides the drill bit to the proximal part 116 and applies force along the axis AX while the user drills the bit This provides additional advantages by enabling the safe operation and positioning of the T66. The non-limiting self-aligning mechanism of the end effector assembly 64 described herein This includes the alignment element 242 of the elastic arm 188 and the drill bit 66 and tip protection. This includes, but is not limited to, the relative rotation between the device 68 and the handle 266. - Improved user experience and efficient and secure attachment to the surgical handpiece assembly 62. This will be further promoted.

[0078] As described above, the distal portion 118 of the drive cannula 114 is not affected by the rotation of the drill bit 66. When the surgical handpiece assembly 62 is used in connection with other applications, rotational torque It may also be provided with a distal projection 126 that facilitates transmission. In the illustration, the driving cannula 114 has a distal projection at the distal portion 118 of the driving cannula 114. Many different types of surgical attachments that can be configured to engage and rotate simultaneously with 126. The surgical handpiece assembly 62 includes the ment module, tools, end effectors, etc. It is configured to be able to rotate, drive, or operate. Naturally, this configuration According to this, excavation and reaming, excavation and sawing, or excavation and The same surgical wire is used in a great many medical and / or surgical procedures, such as wire-driven procedures. Endpiece assembly 62 becomes available. For example, sagittal saw assembly, reciprocating saw assembly Assembly, drill chuck assembly, reamer assembly, wire drive assembly, etc. A drive cannula assists in the operation and installation of one of the deburring assemblies. The distal portion 118 of -re 114 may also be used.

[0079] As shown in Figures 47 to 51, the surgical handpiece assembly 62 is removable An exemplary surgical attachment module 300 configured to be attached to a device Figures 47 and 48 show the hand separated from the surgical handpiece assembly 62. This shows the surgical attachment module 300. (Handpiece housing assembly) 74 is equipped with a handpiece connector 302 adjacent to its distal region. Surgical attachment The ment module 300 includes a surgical attachment housing 304. The attachment housing 304 is detachably connected to the handpiece coupler 302. It may include a surgical attachment connector 306 configured to be joined together. In this configuration, the handpiece connector 302 and the surgical attachment connector 306 are , working together to form a bayonet connection. The surgical attachment connector 306 is a bayonet Equipped with a bayonet mount 308, the handpiece coupler 302 receives the bayonet mount 308. It defines a cavity 310 configured to accommodate, and vice versa. The surgical handpiece assembly 62 has a spring-loaded biasing button 314 (see Figures 50 and 51). The bayonet mount in the cavity 310 of the surgical handpiece assembly 62 is coupled to it. By engaging with the 308, the surgical attachment module 300 is connected to the surgical hand. It includes a pin 312 that is removably attached to the piece assembly 62. More specifically The bayonet mount 308 is configured to accept pin 312 in a "J slot". It may also have non-linear slots 316 (see Figure 48) such as when button 314 is pressed. When lowered, it is positioned to be received by slot 316 of bayonet mount 308. Pin 312 moves. When the bayonet mount 308 is accepted into the cavity 310. By releasing button 314, pin 312 moves to the seat of slot 316, bayonet Secure the net mount 308 to the cavity 310 of the surgical handpiece assembly 62. It may be done in some configurations, such as having a spring-loaded button 3 in slot 316. By applying force to pin 312 in opposition to 14, the user can press button 3 Without pressing down on 14, an inclined surface is formed that guides pin 312 into slot 316. If pin 312 is in the seat of slot 316, then bayonet mount 308 The surgical attachment module 300 is connected to the surgical handpiece assembly 62. In the engaged position, the bayonet mount 308 and the surgical attachment housing The axial movement of the ring 304 is prevented. The bayonet mount 308 is connected to the handpiece. To release from device 302, the user presses down button 314 and slots pin 312. By moving it away from the seat of the 316, it moves axially away from the handpiece coupler 302. The surgical attachment housing 304 is made movable. Handpiece connector 302 The surgical attachment connectors 306 are different in that they are attached to each other through cooperation. It is also possible to have such an arrangement or shape. In other configurations, surgical AT The bushing of the attachment module 300 includes the bayonet mount described above.

[0080] As shown in Figure 49, the surgical attachment module 300 is in the engagement position. The surgical attachment module 300 is positioned relative to the surgical attachment housing 304. A drive that is rotatably coupled and configured to rotate around the surgical attachment axis SX. It is equipped with a movable shaft 318. When the surgical attachment module 300 is in the engagement position In combination, the surgical attachment axis SX is positioned relative to axis AX of the surgical handpiece assembly 62. Aligned. When the surgical attachment module 300 is in the engagement position, The drive shaft 318 of the attachment module 300 is distal to the drive cannula 114. The surgical attachment module 300 is connected to the origin 126 and the distal projection 126 It is configured to receive torque. The drive shaft 318 is connected to the distal projection 126. The protrusions are joined together and configured to receive torque from the distal protrusion 126 by interference coupling. It includes 320. The drive shaft 318 engages with the distal projection 126 and the distal projection 126 As long as it receives torque from this, it is possible that it can have different arrangements or shapes. In this case, the specification of the drive shaft 318 and the drive cannula 114 throughout the present application. The shape is described, but naturally, each component is the drive cannula 11 Any suitable torque sufficient to transmit torque from 4 to the surgical attachment module 300 It may have a configuration. In the illustrated configuration, the surgical attachment module 300 It includes an output member configured to drive a surgical end effector. The to 318 and output member receive from the distal projection 126 and can be used by the drive shaft 318. The available torque is converted into mechanical force usable to drive surgical end effectors by the output component. A linkage mechanism and / or gear train may be connected.

[0081] As shown in Figures 47, 50, and 51, the surgical handpiece assembly 62 is The surgical handpiece assembly 62 is connected to a power source (e.g., a removable battery). It includes one or more electrical connectors 322 that are connected to the power supply when the above is done. The surgical attachment module 300 receives only mechanical force and does not receive electricity, One or more surgical attachment modules are attached to the surgical handpiece assembly 62 It is thought that it can receive both mechanical force and electric power from it. For example, including a light source (not shown) The rotary drive attachment module transmits torque through the drive shaft 318. The surgical handpiece assembly 62 receives mechanical force and power in the form of voltage through its electrical connections. Another surgical attachment module (not shown) rotates to be configured to do so. It may include a drive attachment module. In other configurations, the coupled hand A specific surgical attachment module receives power exclusively from the surgical handpiece. You may do so.

[0082] In Figures 47 to 51, the surgical attachment module 300 is wire-driven. It is equipped with a rumbler. Such a wire-driven assembly was filed on May 15, 2017. U.S. Patent Application Publication No. 2017 / 0340374 "Surgical Wire Dr iver Capable of Automatically Adjusting for the Diameter of the Wire or Pin Bein This information is disclosed in "g Driven" and all its contents are incorporated herein by reference. Configured to be coupled to the handpiece coupler 302 of the surgical handpiece assembly 62. The torque is then received from the distal projection 126 of the distal portion 118 of the drive cannula 114. Other surgical attachment modules having a surgical attachment connector configured as follows: It may be detachably attached to the surgical handpiece assembly 62. It is thought that...

[0083] As described above, the surgical handpiece system 60 is a surgical handpiece assembly 62 It is removably attached to and associated with the surgical handpiece assembly 62. The system further comprises a measurement module 128 configured to provide measurement functions to surgeons. The measurement module 128 engages the drill bit 66 with the proximal portion 116 of the drive cannula 114. When compatible, it can be used in conjunction with the surgical handpiece assembly. Depth cannula 134 is positioned within the guide bush 132 and moves parallel to the measuring axis MX. It is supported. The depth cannula 134 is at least partially within the measuring housing 138. It is installed. Similar to the surgical attachment module 300, the measurement module 1 28 is configured to be detachably coupled to the handpiece coupler 302. It is equipped with measuring couplers 324 and 326. In several configurations (see Figures 52 to 54), The housing 138 includes the measuring coupler 324. Other configurations (see Figures 55-66) The bush 132 includes a measuring coupler 326. In the illustrated configuration, the handpiece coupling The coupling device 302 and the measuring coupling devices 324 and 326 work together to form a bayonet coupling. The constant couplers 324 and 326 are equipped with bayonet mounts 328 and 330, and the handpiece couplers The cavity 310 of the coupling 302 is designed to accommodate bayonet mounts 328 and 330. It is configured in such a way that the reverse is also true. Spring-driven button 314 (Figures 50 and 54) The pin 312, which is connected to the (reference) cavity 31 of the surgical handpiece assembly 62 By engaging with the bayonet mounts 328, 330 in the measurement module 128 It is configured to be removably attached to the surgical handpiece assembly 62. More specifically, bayonet mounts 328 and 330 are designed to accept pin 312. Non-linear slots 332, 334 such as the configured "J slots" (Figures 53, 56, and It may also be equipped with (see Figure 64). When button 314 is pressed down, a bayonet Pin 312 is positioned to be received by slots 332 and 334 of mounts 328 and 330. Move. If bayonet mounts 328 and 330 are accepted into cavity 310, By releasing button 314, pin 312 is moved to the seat of slots 332 and 334. Bayonet mount 328, 330 for surgical handpiece assembly 62 cavities 3 It may be fixed to 10. In some configurations, slots 332 and 334 This is achieved by applying force to the pin 312 in opposition to the spring-biased button 314. Therefore, without the user having to press down button 314, pin 312 is inserted into slots 332 and 334. An inclined surface is formed to guide it. Pin 312 is positioned in the seat of slots 332 and 334. In this case, the bayonet mount 328, 330 and the measurement module 128 are for surgical use. It is in an engaged position coupled to the endpiece assembly 62, and has a bayonet mount 328, 3 30 and the axial movement of the measuring housing 138 are prevented. Bayonet mount 32 8. To release 330 from the handpiece coupler 302, the user presses button 314. By lowering it and moving pin 312 away from the seat of slots 332 and 334, the hand The measuring module 128 is made movable in the axial direction away from the piece coupling device 302. The piece coupler 302 and the measuring couplers 324, 326 are attached to each other by cooperation. It is possible to have different arrangements or shapes, as far as is feasible. Surgical handpiece System 60 consists of two surgical handpieces (one dedicated to measurement, the other to tissue cutting / Without needing to purchase a separate handpiece connector (for drilling), you can use the same handpiece connector 302. Surgical attachment module 300 (mechanical force from surgical handpiece assembly 62) (receiving attachment) and measurement module 128 (surgical handpiece assembly 6) 2) Attachments that do not receive mechanical force are used without distinction in surgical handpiece assembly. It is convenient for attaching to the Ri62.

[0084] As best shown in Figures 4 and 6, the depth cannula 134 defines the bore 338. It has an inner surface. The bore 338 of the cannula has a depth of 134, and the measuring coupling is a handpiece. When attached to the coupling 302, it is designed to receive at least a portion of the drill bit 66. It is sized as follows. The depth cannula 134 slides against the drill bit 66. This complements the performance of the measurement function associated with the surgical handpiece assembly 62. It is configured to assist. In a specific configuration, the drive cannula 114, the depth cannula The ure 134 and the drill bit 66 are engaged when the drill bit 66 is in the engaged position. When the measurement module 128 is coupled to the surgical handpiece assembly 62, concentric and It is positioned so that the depth cannula 134 engages with the drill bit 66. The measuring housing 138 is also connected to the handpiece housing assembly 74. In that case, at least a portion of it is received by the bore 122 of the distal portion 118 of the drive cannula 114. The drill is sized to fit the measuring axis MX and the handpiece axis AX. Concentricity of depth cannula 134 relative to bit 66 and surgical handpiece assembly Depth configured to be received by the drive cannula 114 positioned within the bridge 62 The cannula 134 is positioned using the measurement module 128 with the surgical handpiece system. This is beneficial for improving the visibility of the surgical site for users operating the 60. International patent application Regarding the configuration of the surgical handpiece described in Application No. PCT / US2016 / 049899 All of the disclosures herein are incorporated herein by reference. In certain embodiments, depth cannula Even if the drive cannula 134 has a depth extension that is not concentric with the bore of the drive cannula 114 good.

[0085] Figures 52 to 54 show a surgical handpiece relating to an exemplary configuration of the measurement module 128. This shows system 60. In at least some respects, the configuration shown in Figures 52 to 54 is superior. The configuration is the same as described above, and the same numbers indicate the same components. The configuration shown in Figures 52 to 54 In the configuration, as described later, the measuring housing 138 is equipped with a measuring coupler 324. However, any feature described in Figures 47 to 51 is included in the embodiment described in Figures 52 to 54. It is acceptable for one to be present, and vice versa.

[0086] As shown in Figure 53, the measuring housing 138 is a measuring module 128 that is a surgical hand When coupled to the piece assembly 62, the proximal surface 342 is connected to the surgical handpiece assembly. The main body 340 has a proximal region configured to face the ri 62. The ing 138 may contain any suitable material, such as plastic or metal. Even if the measuring housing 138 is formed by two complementary shell components good.

[0087] The measuring housing 138 includes a measuring coupler 324. The measuring coupler 324 has a proximal surface 34 It extends proximally from 2. As described above and as shown in the configuration of Figure 53, the measuring coupler 3 The 24 is equipped with a bayonet mount 328. The bayonet mount 328 is as described above. The "J slot" 332 receives the protruding portion 346 of the motor housing 85 (see Figure 50). The handpiece is equipped with another slot 344 opposite the "J slot". It assists in radial alignment with respect to the coupler 302.

[0088] Furthermore, as shown in Figure 54, the measurement module 128 is located in the measurement housing 138 with minimal Both are partially accepted, and at least part of the depth between the proximal and distal ends of the cannula 134 It is equipped with a bush 132 surrounding it. In a particular configuration, the proximal end of the bush 132 is measured It extends beyond the proximal surface 342 of the housing 138. (See the configuration shown in Figures 53 and 54.) In configurations where the bayonet mount 328 is used, the bayonet mount 328 is Including A348, the bush 132 measures within the bore 348 of the bayonet mount 328. It extends through the proximal surface 342 of the bushing 138. The bushing 132 defines the bore 350. It has an internal structure. The bore 350 of bush 132 surrounds the depth cannula 134. In this state, the measuring axis MX is concentric. The bush 132 is connected to the measuring coupling 324 of the handpiece. When attached to the coupling device 302, the bore 35 of the distal portion 118 of the drive cannula 114 It is configured to be partially accepted by 2. Also, the bush 132 is near It has an outer surface having an alignment portion 354 adjacent to the position end.

[0089] The alignment portion 354 of the bush 132 is the bore of the distal portion 118 of the drive cannula 114 To approximate the inner diameter of 352, align the measuring axis MX with the axis AX of the handpiece. It has an outer diameter set to 354. In other words, the alignment part 354 is the drive cannula 11 It functions to guide the bush 132 into the bore 352 of the distal part 118 of 4. In this configuration, the alignment unit 354 is positioned from the distal direction to the proximal direction, toward the measurement axis MX. It is shaped like a serpentine tube to assist in positioning. The axis AX of the handpiece, i.e., the drive cannula. By properly aligning the measurement axis MX with the axis of -114, the measurement module When 128 is coupled to the surgical handpiece assembly 62, the depth of the cannula 134 This reduces any potential joints that may occur between the drive cannula 114 and the drill bit 66. This includes the depth cannula 134, the drive cannula 114, and the drill bit 66. The other is defined as undesirable friction between the two, and the drive cannula 1 along the measuring axis MX The axial movement of the depth cannula 134 relative to 14 and the drill bit 66 can be restricted. This is possible. This joint is the depth of the cannula 134 when the drill bit 66 retracts. This can hinder rapid distal movement. More specifically, if the bonding force is too strong, it can hinder the movement in the distal direction. The biasing mechanism associated with the forward cannula 134 (described later) also affects the bone surface or p The engagement of the cannula 134 with the rate surface could not be maintained, and the measurement module 128 The controller controls the depth of the surgical handpiece assembly 62 as it moves proximal. It may not be possible to accurately determine the acceleration (positive or negative) of Nure 134. Driving cannula 1 By directly aligning bush 132 with 14, it becomes possible to align each part individually. One advantage of using part-by-part alignment is that it can eliminate positional errors that may be caused by cumulative tolerances. One benefit is the reduction of misalignment.

[0090] As shown in Figure 53, the measuring housing 138 is connected to the handpiece coupler 302 for measurement coupling. When connected to the instrument 324, the electrical connector 322 of the surgical handpiece assembly 62 It engages with the surgical handpiece assembly 62 and transmits power between the measuring module 128. It may also be equipped with an electrical connector 356 that reaches [the target]. In the configuration shown in Figure 53, the measurement module The electrical connector 356 of the 128 has two or three electrical pins and is for use in surgical handpieces. The electrical connector 322 of the assembly 62 is connected to the measuring module 128 for surgical handpiece Two or three configured to receive electrical pins when coupled to assembly 62 It has two corresponding pin receptacles. Three electrical pins are located in the measuring housing 138. It extends from the proximal surface 342 of the body 340 and is radially separated from the bush. More specifically A group of three electrical pins are located between slots 332 and 344 of bayonet mount 328. They are arranged at equal distances in the radial direction, separated from slots 332 and 344. The electrical pins include electrical pins for power, electrical pins for grounding, and electrical pins for data signal transmission. Includes. Electrical pins for signal transmission are connected to the measurement module 128 and the surgical handpiece assembly. It can also be used for communication and control with the BR62. In some configurations... , the electrical connector 356 of the measurement module 128 and the surgical handpiece assembly 62 The electrical connector 322 has two or fewer pins and pin receptacles. In other configurations, the measuring module 128 and the surgical handpiece assembly 62 The number of pins and pin receptacles is 4 or more, or 2 or less, respectively. The electrical connector 356 of the Joule 128 receives power from the surgical handpiece assembly 62. It is configured to receive power. Also, the electrical connector 356 of the measurement module 128 is The displacement sensor assembly 136 and the display 148 are coupled to the measuring coupler 324. When the displacement sensor assembly 136 is coupled to the surgical handpiece assembly 62, It also supplies power to the display 148.

[0091] Figures 55-66 show a surgical handpiece relating to another exemplary configuration of the measurement module 128. This shows the system 60. In at least some respects, the configuration shown in Figures 55 to 66 is The configuration is the same as described above, and the same numbers indicate the same components. (See Figures 55-66) In terms of configuration, as described later, the bush 132 is equipped with a measuring coupler 326. With respect to other embodiments of the measurement module 128, any of the features described above may be included in this embodiment. It can be used in conjunction with the state, and vice versa. For example, the electrical connector 3 mentioned above Structures 22 and 356 can be used in conjunction with any configuration of the measurement module 128.

[0092] As shown in Figure 56, the measuring housing 138 is connected to the measuring module 128, which is connected to the surgical hand When coupled to the piece assembly 62, the proximal surface 342 is connected to the surgical handpiece assembly. The main body portion 340 has a proximal region configured to face the ri 62.

[0093] As shown in Figure 57, the measurement module 128 is partially received by the measurement housing 138. It is equipped with a bush 132. The bush 132 is located on the proximal surface 342 of the measuring housing 138. It extends along the measurement axis MX between the proximal end that extends beyond the proximal end and the distal end opposite the proximal end. The bush 132 has a proximal portion 358 adjacent to its proximal end, which includes a bore 360 ​​with a first inner diameter. In the configuration shown in Figure 57, the proximal portion 358 of the bush 132 is connected to the measuring coupler 326. This includes the above and as shown in the configuration of Figure 57, the measuring coupler 326 is a bayonet manifold. It may also be equipped with a bayonet mount 330. The bayonet mount 330 is a "J-slot" as described above. The "J-slot" 334 and the "J-slot" that receives the protrusion 364 of the motor housing 85 (see Figure 60) The handpiece coupler 30 is provided with another slot 362 opposite the "lot". It assists in radial alignment relative to 2.

[0094] The proximal portion 358 of the bush 132 is configured to abut against the motor housing 85. (See Figures 50 and 51). The proximal portion 358 of the bush 132 is located in the motor housing. It contacts 85 to assist in aligning the measuring axis MX with the handpiece axis AX. By aligning the measuring axis MX with the axis AX of the piece, the measuring module 12 When 8 is coupled to the surgical handpiece assembly 62 and the depth crab during surgical procedure When the cannula 134 moves axially, the depth cannula 134, the drive cannula 114, and The joint that may occur between the drill bit 66 is mitigated. Also, the bush 132 has a proximal portion 3 Between 58 and the distal end is a distal section 3 including a bore 368 that communicates with the bore 360 ​​of the proximal section 358. It is equipped with 66. The bore 368 of the distal portion 366 has a second inner diameter smaller than the first inner diameter. The bore 368 of the distal portion 366 approximates the outer diameter of the outer surface of the cannula 134 in depth, To assist in maintaining the concentricity of the depth cannula 114 with respect to the mesh 132 and the measuring axis MX. It is sized as follows.

[0095] As best shown in Figures 60 and 64, the proximal portion 358 of the bush 132 is One or more recesses 370 are defined that communicate with the bore 360 ​​of the proximal portion 358 of y132. It may be. Each of the one or more recesses 370 receives a part of the motor housing 85. The radial alignment of the bush 132 with respect to the surgical handpiece assembly 62. In addition to assisting with the process, it also helps to align the measurement axis MX with the handpiece axis AX. It is configured as follows: In the illustrated configuration, the proximal portion 358 of the bush 132 has four recesses 3 Draw the number 70.

[0096] In one configuration shown in Figures 58, 59, and 66, the distal portion 366 of the bush 132 and at least one of the depth cannula 134 is the distal part 366 of the bush 132 It has one or more projections extending toward the other side of the cannula 134. The one or more protrusions are located in the bore 368 of the distal portion 366 of the bush 132 and in the surgical hand The depth of the bore 352 of the distal portion 118 of the drive cannula 114 of the endpiece assembly 62 It is configured to assist in the centering of the cannula 134. In this configuration, one or more protrusions may each be provided with an annular ring. Other configurations In this configuration, one or more protrusions 372 are arranged radially around the bush 132. It is equipped with individual protrusions 376 (see Figure 66). One or more protrusions 372 are Although shown at the distal end of bush 132, it is located in another place along bush 132. It is considered acceptable for one or more protrusions 372 to be part of the measuring module. Positioned directly below gear 146, the depth cannula 134 is aligned with the measuring axis MX. When moving, the gear 146 is consistent with respect to the multiple teeth of the depth cannula 134. The projection 372 may be provided to assist in maintaining a tight interlocking engagement. Two, three, or more axially extending ribs separate and surround the depth cannula 134. It may also be in the form of: In a particular embodiment, the projection 372 on the bush 132 is The depth cannula 134 is separated from the teeth to prevent interaction.

[0097] Furthermore, the depth cannula 134 has one or more projections extending outward from its outer surface. It may also have 373. One or more projections 373 are bush 132 and drive The bush 132 abuts against at least one of the bores 360, 368 of the movable cannula 114. In this configuration, the depth cannula 134 is centered, and as a result, The depth cannula 134 is centered in the bore 352 of the drive cannula 114. In one configuration shown in Figure 59, the depth of the cannula 134 extends outward from the outer surface. The protrusions 373 or more are provided with an annular ring 374. (See the configuration shown in Figures 55 to 66) In this, one or more projections 37 extend outward from the outer surface of the depth cannula 134. 3 cooperates with one or more projections 372 that extend into the bore 368 of the bush 132. , the depth of the bush 132 in the bore 368 and the depth of the drive cannula 114 in the bore 352 It is configured to assist in the centering of the Newle 134. The bore of the bush 132 352 and the depth of the cannula 134 in the bore 368 of the drive cannula 114 The ng is when the measuring coupler 326 is coupled to the handpiece housing assembly 74. Looseness of the connection between the depth cannula 134, the drive cannula 114, and the drill bit 66 To assist in the process. Two sets of protrusions as described above (one set of protrusions on bush 132 and depth) Using a pair of projections on cannula 134 is possible when there is only one pair of projections. This is particularly advantageous because the hinge is restricted. The projections 372 and 373 can be any suitable shape. They may have a shape or size. The number of projections may be one, two, three, four, or so. The above can be changed. The protrusions 372 and 373 are connected to the cannula 134 in depth. The bush 132 is sized and positioned to move within the bore 368. Furthermore, the depth cannula 134 has two sets of projections, one of which is axially separated from the other. It is also possible that one bush 132 is spaced axially away from the other. It is also possible that it may have two sets of protrusions.

[0098] As shown in Figures 62 and 63, the measuring module 128 is coupled to the gear 146. The proximal end of the depth cannula 134 is biased to the biasing position on the distal end side of the bush 132. The system includes a biasing mechanism 378 configured to bias the gear 146 so that it rotates in one direction. In the illustrated configuration, the biasing mechanism 378 includes a torsion spring. The biasing mechanism 378 is Displacement sensor assembly 13 for measurement function associated with depth cannula 134 6 helps generate accurate signals. Consistent constraints of depth cannula 134 Movement (without connection) assists in the proper operation of the biasing mechanism 378. The biasing mechanism 378 then returns the depth cannula 134 to its biased position during surgical procedures. If not, the resulting signal may not accurately reflect the position of the depth cannula 134. However, the position of the depth cannula 134 is unsuitable for surgical procedures as a result of the connection. It is possible.

[0099] Naturally, in certain embodiments, the depth cannula 134 is the measuring housing It is freely movable relative to the 138 and surgical handpiece assembly 62, and It does not limit the drilling depth. In other words, the depth cannula 134 acts as a drill stopper. It cannot act in a way that provides positive control over the position of the depth cannula 134 relative to the bone or plate. It is not connected to any actuator. In other words, the depth cannula 134 is It works independently to provide a measurement function for the drilled bore, while the user deeply differs It's impossible to avoid over-preparing.

[0100] As shown in Figures 56, 61, and 64, the measuring housing 138 is a handpiece When the coupling device 302 is coupled to the measuring coupling device 326, the surgical handpiece assembly 6 The surgical hand engages with two electrical connectors 322 (see Figures 55, 60, and 61). An electrical connector 38 transmits power between the piece assembly 62 and the measuring module 128. It includes 0. In the configuration shown in Figures 56, 61, and 64, the measurement module 128 The electrical connector 380 has three electrical terminals 382 and is used in surgical handpiece assemblies. 62 electrical connectors 322 are connected to the measuring module 128 of the surgical handpiece assembly 6 Three corresponding terminal contacts 38 configured to make electrical contact when coupled to 2. It comprises 4. In the illustrated configuration, the electrical terminal 382 engages with the terminal contact 384. In the case shown in Figure 61, a force is applied to the terminal contact 384 in opposition to the biased terminal 382. By doing so, the external It is formed to be biased in one direction. Three electrical terminals 382 are connected to the measuring housing 138 It extends from the proximal surface 342 of the main body 340 and is radially separated from the bush with respect to the measuring axis MX. They are separated. More specifically, a group of three electrical terminals 382 are connected to a bayonet mount 330. Between slots 334 and 362, at equal radial distances, and separated from slots 334 and 362. They are arranged in such a way. The three electrical terminals 382 are electrical terminals for power and electrical terminals for grounding. Includes a sub-unit and electrical terminals for signal transmission. The electrical terminals for signal transmission are located in the measurement module 12. It is used for communication and control between 8 and the surgical handpiece assembly 62. It may also be the case that the measurement module 128 and the surgical handpiece are used. The assembly 62 has two or fewer terminals and terminal contacts. In this configuration, the measurement module 128 and the surgical handpiece assembly 62 have terminals. The number of terminal contacts is 4 or more. The connector 380 is configured to receive power from the surgical handpiece assembly 62. Furthermore, the electrical connector of the measuring housing 138 is connected to the displacement sensor assembly 136. And coupled to the display 148, the measuring coupler 326 assembles the surgical handpiece. When coupled to the 62, the displacement sensor assembly 136 and the display 148 are powered To supply power.

[0101] Naturally, the protrusions shown in Figures 58, 59, and 66 are part of the measurement mechanism described above. It may be used in conjunction with any of the other embodiments of Joule. Naturally, any embodiment of the measurement module 128 described herein is not included in this specification. Even if it is used in conjunction with any of the surgical handpiece assemblies 62 good.

[0102] Another possible method is to reprocess and reuse the depth measurement module. This method has been used in the past. This may include obtaining the used measurement module. The measurement module may include use in contact with the patient during surgical procedures. When used, one or more components of the measurement module become contaminated and used The measurement module may not be sterile. The term "contamination" refers to any residual contamination. This relates to components to which biological materials are attached. In certain embodiments, gears and Multiple teeth in the cannula may become contaminated. In other words, residual biological substances There is a possibility that the above-mentioned measurement module may be attached to the used measurement module. Various embodiments may include any combination of the components described above. Any component of the measurement module may become contaminated.

[0103] The reprocessing method involves disassembling at least two components of the measurement module. It may further include the following: At least two components are depth cannons. Any component of the measurement module, such as gears, measuring housings, bushings, displays, etc. It may be a component. The disassembly step involves measuring the depth cannula and gears. This may include separating the wedge. The disassembly step involves removing the gear from the depth cannulas. The disassembly step may include separating the bushing from the measuring housing. This may include separation. The disassembly step involves the two components of the measuring housing. When the pieces are fixed together by welding or bonding, the cutting step or joint The measurement housing is broken down into two components by the destruction step. This may include separating into the following components. Naturally, depending on the degree of contamination of the measurement module. And any of these decomposition steps may be performed independently, or Alternatively, they may be designed to be executed in combination.

[0104] After the disassembly step is complete, this method includes one or more cleaning steps. That's also good. One possible cleaning step is to clean the contaminated depth cannula. One possible cleaning step is to clean the contaminated gears. Another possible cleaning step is This involves cleaning the measuring housing. Another possible cleaning step is cleaning the display. It is clean. Furthermore, this reprocessing method applies to the bush and / or the measuring housing or This may include cleaning the measuring coupler positioned on the bush. However, one or more cleaning steps are performed before one or more disassembly steps. It would be fine if it were designed that way.

[0105] The type of cleaning for each component of the measurement module is not particularly limited, and mechanical cleaning is also an option. Examples include a cleaning and chemical cleaning step. For example, the chemical step is used to clean the object being cleaned. The components are subjected to an enzyme cleaning process, an ultrasonic cleaning process, or a combination thereof. This may include performing the following: Depth cannula, bushing, and / or gear, 1 It may be immersed in one or more washing steps. The washing steps are: Removal of tissue from within the teeth of a depth cannula, removal of tissue from within the teeth of a gear, or these This may include a combination of the following: a display or controller, or other specific components. The components may not withstand aggressive cleaning steps. In this case, cleaning may involve wiping the surface with an alcohol-based antibacterial cleaning cloth. It may be so. Naturally, these steps depend on the degree of contamination of the measurement module. Either one of them may be executed alone, or they may be executed in combination. It's fine if it's like that.

[0106] This reprocessing method may further include a step of reassembling the measurement module. i. One or more components of the used measurement module are effectively cleaned. If not possible, if damaged during use, or if one or more of the disassembly steps are not performed If damaged or otherwise unusable, the measurement module will be replaced by one or It may be designed to be reassembled using multiple new components. The new components that can be used during vertical steps are not particularly limited, and exemplary components In terms of features, it includes a new depth cannula, a new gear, a new bush, and a new displacement. Sensor assembly, new measurement housing, new controller, new display, Or a combination of these. In certain cases, cleaned components Using one or more of the components, one or more of the new components are rebuilt. It may be designed to be assembled.

[0107] For example, the reassembly step involves cleaning the gears and cleaning the depth cannula. This may include reassembling the measurement module using the method, or cleaning Reassemble the measurement module using both the depth measuring cannula and the cleaned gear. This could be a step where the reassembly step involves working together to create a new measurement housing. Alternatively, the reassembly step could involve working together to create a new measurement housing. A new measurement housing is used to measure using two or more components that make up the jigging. This may include reassembling the fixed module. The reassembly step is a new This may further include reassembling the measurement module using a display. Alternatively, the reassembly step involves reassembling the measurement module using the cleaned bushings. This may include the following: Alternatively, the reassembly step may involve using a new bushing. This may include reassembling the measurement module. In this case, a new depth cannula or a cleaned depth cannula is used as a new gear or a new gear. It is also possible that it will be placed in a meshing relationship with a used gear. Gears and new depth cannulas or cleaned depth cannulas at least partially It is also possible that a new or cleaned housing will be reassembled, surrounding the existing one. The reassembly step can be performed using a new measuring housing or a used measuring housing. This may include gluing or welding the components together. The procedure may further include the step of securing the bushing to the measuring housing.

[0108] This reprocessing method further includes a step of sterilizing the reassembled measurement module. This is also acceptable. The type of sterilization is not particularly limited, and in certain cases, ethylene oxide gas may be used. This may include sterilizing the reassembled measurement module using an autoclave. Other types of sterilization, such as bacterial sterilization or gamma sterilization, are now being used. This is also acceptable. In certain embodiments, the measurement module is sterilized after reassembly. The components of the measurement module should be sterilized before reassembly. It is thought that...

[0109] Many of the drawings in this specification depict surgical hands for ease of explanation and to simplify illustration. It should be noted that certain components of the endpiece system 60 have been removed. ru.

[0110] Furthermore, while surgical handpiece systems are intended for surgical applications, they can also be used for non-surgical purposes. It should be noted that this is possible.

[0111] Furthermore, naturally, the terms "include, includes, and The term "including)" is a term that means "to prepare (comprise, comprises, etc.)" It has the same meaning as "comprising". Furthermore, naturally, this detail In writing, "first," "second," and "third" are used. Terms such as "[...]" are used for non-limiting and illustrative purposes, for the purpose of clarification and consistency, and do not imply any specific structural characteristics. It is used to distinguish between features and components.

[0112] The above description discusses multiple configurations. However, the configurations discussed in this specification are: This invention is neither exhaustive nor limited to any particular form. The term essentially falls into the category of descriptive rather than definitive terms. In light of the above instruction. Therefore, many improvements and modifications are possible, and the present invention may be implemented in ways different from the specific description. obtain.

[0113] The present invention is defined in the independent claims, and its specific features are described in the dependent claims, however The subject matter of a claim dependent on an independent claim can also be realized in relation to another independent claim.

[0114] Furthermore, this disclosure is described in more detail with reference to the above configuration and drawings. The following implementable items are included, with specific characteristics described in the dependent items. I. A drill bit that is removably attached to the drive assembly of a surgical instrument. hand, A shank extending along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, Located between the proximal and distal ends, and separated from the axis by a first interface distance, at the outermost point. It is an interface equipped with a drive unit, and the outermost drive unit has an outer drive surface that does not face the shaft. The interface, An elastic arm extending from the proximal end of the shank to the end of the arm, with an outer arm surface that does not face the axis. It is a room, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The outer arm surface is separated from the axis by a second arm distance that is smaller than the first arm distance. Position 2 and An elastic arm that is movable relative to an axis between, A drill bit equipped with... II. The second arm distance is less than or equal to the first interface distance, as described in item 1. Lilbit. III. Outer arm surface of the elastic arm and outer drive surface of the outermost drive part of the interface Each of these separates from the axis at substantially the same distance when the elastic arm is in the second position. A drill bit separated, as described in item I or II. IV. The interface generally has a polygonal profile, as described in items I to III. A drill bit as described in any one of the items. V. The interface generally has a hexagonal profile, as described in Section IV. Rubit. VI. When the elastic arm moves from the first position to the second position, the drill bit Alignment elements configured to facilitate at least partial rotation around an axis are located at the end of the arm. A drill bit as described in any one of items I through V, further equipped with the above. VII. The alignment element of the elastic arm includes at least a portion of the outer arm surface, item V Drill bits as described in I. VIII. The alignment element of the elastic arm is a pair of planar arms adjacent to the outer arm surface. Including the muted surface, The interface includes a pair of planes, When the elastic arm is in the second position, one of the planar arm surfaces is generally the same as the other plane surface. A drill bit described in item VI or VII, which is a single plane. IX. End effectors that are removably attached to the drive assembly of surgical instruments. It is an assembly, A drill bit extending along the axis between the cutting tip and the insertion part, A handle with a handle bore that extends along the handle shaft, and a rotatable support within the handle bore. It is a receptor that is held and whose parallel movement along the handle axis relative to the handle is restricted, and the drill A tip protective device comprising a receptor that defines a receptacle capable of receiving the cut tip of a blade. Place, Equipped with, The handle is grasped by the user, and the drill bit and receptor are positioned relative to the handle. It is configured to facilitate the attachment of the drill bit to the surgical instrument so that it rotates simultaneously. The end effector assembly. X. The insertion part of the drill bit, A shank extending along the axis between the proximal and distal ends, with the cutting tip adjacent to the distal end. The shank is positioned, Located between the proximal and distal ends, and separated from the axis by a first interface distance, at the outermost point. An interface equipped with a drive unit, An elastic arm extending from the proximal end of the shank to the end of the arm, with an outer arm surface that does not face the axis. It is a room, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The outer arm surface is separated from the axis by a second arm distance that is smaller than the first arm distance. Position 2 and An elastic arm that is movable relative to an axis between, Equipped with, An elastic arm is used to attach the drill bit end effector assembly to the surgical instrument. In response to the force applied to the handle, the elastic arm moves from the first position to the second position. In such cases, it is configured to facilitate at least partial rotation of the drill bit around the axis. The end effector assembly described in item IX is further provided with alignment elements at the end of the arm. Ri. XI. At least a portion of the tip protection device is elastically deformable, as described in item IX or X. End effector assembly. XII. The receptor is configured to receive the cutting tips of drill bits of different sizes. Furthermore, an end effector assembly as described in any one of items IX through XI. XIII. The drill bit is formed from a ferromagnetic material. The tip protection device further includes a magnet capable of holding the cutting tip of the drill bit within the receptor. or, an end effector assembly as described in any one of items IX through XII. XIV. End effects that are removably attached to the drive assembly of surgical instruments It is a to-assembly, A drill bit extending along the axis between the cutting tip and the insertion part, To allow the user to operate the drill bit without coming into contact with the cutting tip, the drill bit A tip protection device is detachably attached to the cutting tip of the torch, An end effector assembly equipped with [a specific feature]. XV. Surgical instruments with a drive assembly, with removable insert and tip protector. A method for mounting a drill bit having a cutting tip that is coupled to a drill bit, To grasp the tip protection device, When the drill bit is coupled to the drive assembly, the drill bit may have a small tip protection device. Insert the drill bit's insertion part into the surgical instrument so that it rotates at least partially. and, Methods that include... XVI. Inserting the insertion part of the drill bit into the surgical instrument is the cutting of the drill bit. Rotating the receptor of the tip protection device that holds the tip relative to the handle of the tip protection device The method described in item XV, including the following. XVII. Further restricting the movement of the drill bit relative to the tip protection device to the axial direction. Including the method described in item XV or XVI. XVIII. A surgical instrument used in conjunction with a drill bit that extends along the axis, and in the first position By moving it to the second position toward the axis, the drill bit can be removably mounted. A surgical instrument having a holding surface that can be easily handled, The handpiece body and Supported within the handpiece body, the drill bit can rotate axially relative to the surgical instrument. A drive assembly comprising a drive cannula configured to be fixed in place, A release mechanism configured to facilitate the removal of the drill bit from the drive assembly. and, Prepare, surgical instruments. XIX. The release mechanism is released from the drill bit drive assembly by axial translation. The surgical instrument according to item XVIII, comprising a sliding element configured to facilitate removal. Ingredients. XX. The sliding element of the release mechanism engages with the elastic arm of the drill bit, and the elastic arm At the very least, item XIX further includes an actuation element molded to bias a portion of it axially. The surgical instruments described. XXI. The sliding element of the release mechanism further includes a pocket, The release mechanism, A spherical guide supported within a pocket of the sliding element, A release body with a spiral-shaped slot extending along the axis, A color with a color channel opposite the axis, Furthermore, The spherical guide moves along the spiral slot formed in the release body and is formed in the collar By translating along the color channel, the axis responds to the rotation of the color around the axis. This facilitates the parallel movement of the sliding element along the curve, allowing the drill bit to be removed from the surgical instrument. To facilitate the engagement of the actuation element with the elastic arm of the drill bit, as described in item XX. Surgical instruments. XXII. A shank extending along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, It is an interface located between the proximal and distal ends, and is spaced apart from each other. It comprises a first outermost drive unit and a second outermost drive unit that define the maximum drive dimension of the surface. The first outermost drive unit is separated from the shaft by a first interface distance, and the second outermost drive unit is The interface, separated from the axis by the second interface distance, The outer arm surface extends from the proximal end of the shank to the end of the arm and does not face the axis, and the shank It faces the distal end and is radially positioned around the axis of one of the first and second outermost drive units. It is an elastic arm equipped with a joined holding surface, At a first position where the outer arm surface is separated from the axis by a first arm distance, the holding surface is at a first maximum distance. When the external drive unit is aligned radially, the first arm distance is the first interface When the distance is greater than the second outermost drive unit and the holding surface is radially aligned with the second outermost drive unit, The first position where the arm distance is greater than the second interface distance, The outer arm surface is separated from the axis by a second arm distance that is smaller than the first arm distance. When the holding surface is radially aligned with the first outermost drive unit at position 2, the second a The distance is less than or equal to the first interface distance, and the holding surface is radially relative to the second outermost drive unit. When aligned, the second arm distance is less than or equal to the second interface distance. The second position and An elastic arm that is movable relative to an axis between, A drill bit equipped with [a specific feature]. XXIII. The first interface distance and the second interface distance are The term XX includes the common distance at which the outermost drive unit and the second outermost drive unit are separated from the shaft. Drill bits as described in II. XXIV. The shank extends along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, It is an interface located between the proximal and distal ends, and is spaced apart from each other. It comprises at least two outermost drive units that define the maximum drive dimension of the surface, and the two outermost units Each drive unit is separated from the shaft by a first interface distance, - and, The outer arm surface extends from the proximal end of the shank to the end of the arm and does not face the axis, and the shank A retainer that faces the distal end and is radially aligned with one of the outermost drive units around its axis. It is an elastic arm equipped with a surface, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The second arm distance is smaller than the first arm distance and less than or equal to the first interface distance. In the second position, the outer arm surface is separated from the axis, An elastic arm that is movable relative to an axis between, A drill bit equipped with [a specific feature]. XXV. The interface includes at least four planes, as described in Section XXIV. Rubit. XXVI. The drill bit described in item XXV, whose interface includes six planes. XXVII. The interface includes at least four corners, two of which are A drill bit, as defined in any one of items XXIV to XXVI, that defines the outermost drive section. XXVIII. The interface includes at least six corners, as described in item XXVII. Drill bits included. XXIX. The interface includes multiple drive lobes, and two of the drive lobes are The outermost drive unit is defined by the drill bit described in any one of items XXIV to XXVIII. to. XXX. Multiple drive lobes include four or more drive lobes, as described in item XXIX. Rubit. XXXI. One of the elastic arm and drive lobe intersects the axis of the elastic arm. Including a common bisecting plane that defines two equal parts and two equal parts of the outermost drive part, The drill bit described in item XXIX. XXXII. The elastic arm is further defined as the first elastic arm, Extending from the proximal end of the shank to the end of the second arm, and the second outer arm surface that does not face the axis and It faces the distal end of the shank and is radially positioned around one of the outermost drive parts. It further comprises a second elastic arm having a second retaining surface, The first and second elastic arms are, Each outer arm surface is on the axis at each first arm distance greater than the first interface distance. Each of the first positions separated from each other, Each second arm is smaller than each first arm distance and less than or equal to the first interface distance. In terms of distance, each outer arm surface is separated from the axis at each second position, A drill that is movable relative to the axis between any one of items XXIV to XXXI. Rubit. XXXIII. The elastic arm extends from the proximal end of the shank to the end of the arm, at least from the axis. A drill that extends partially away, as described in any one of items XXIV through XXXII. bit. XXXIV. The elastic arm is provided with finger portions at the end of the arm that provide a holding surface, item XX A drill bit as described in any one of items IV through XXXIII. XXXV. The finger section forms an inclined surface configured to bend the elastic arm toward the axis. The drill bit described in item XXXIV. XXXVI. The interface has a distal end and a proximal end. It extends along the axis between and between the distal end of the interface and the proximal end of the interface. The interface length is defined, The retaining surface is separated from the proximal end of the interface by a retaining distance greater than or equal to the interface length. , a drill bit as specified in any one of items XXIV to XXXV. XXXVII. The interface is located at the distal end of the interface and the proximal end of the interface. It extends along the axis between the ends, and between the distal end of the interface and the proximal end of the interface. The interface length is defined, The shank is defined as the shank length between the distal end and the proximal end, and the interface length. Having a shank length that is three times or more, and specified in any one of items XXIV to XXXVI Drill bits included. XXXVIII. Cannula inserted, one of items XXIV through XXXII The drill bit described. XXXIX. A twist drill bit, one of items XXIV through XXXVIII. The drill bit described in item 1. XXXX. One of the elastic arms and the outermost drive unit is radially relative to the axis. A drill positioned within 15°, as described in any one of items XXIV to XXXIX. bit. XXXXI. One of the holding surfaces and the outermost drive part intersects the axis with two elastic arms. The term includes a common bisecting plane that defines the equal parts of and the two equal parts of the outermost drive section. A drill bit as specified in any one of the items from XXIV to XXXX. XXXXII. A shank extending along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, It is an interface located between the proximal and distal ends, and is spaced apart from each other. It comprises at least two outermost drive units that define the maximum drive dimension of the surface, and the two outermost units Each drive unit is separated from the shaft by a first interface distance, - and, The outer arm surface extends from the proximal end of the shank to the end of the arm and does not face the axis, and the shank An elastic arm having a holding surface facing the distal end, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The second arm distance is smaller than the first arm distance and less than or equal to the first interface distance. In the second position, the outer arm surface is separated from the axis, An elastic arm that is movable relative to an axis between, Equipped with, The retaining surface includes a first bisecting plane that intersects the axis and defines two equal portions of the retaining surface. fruit, One of the outermost drive units intersects the shaft and defines two equal parts of that outermost drive unit. It includes the second bisecting surface, The second bisector is drilled at a radius of approximately 60° from the first bisector around its axis. Rubit. XXXXIII. A shank extending along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, An interface located between the proximal and distal ends, separated from each other. It comprises at least two outermost drive units that define the maximum drive dimension of the face, and the two outermost drive units Each part is separated from the axis by a first interface distance, interface Therefore, by separating them diametrically with respect to the axis, the minimum interface dimension is defined. , with at least two outer non-drive parts radially separated from the two outermost drive parts around the axis It is equipped with an interface and The outer arm surface extends from the proximal end of the shank to the end of the arm and does not face the axis, and the shank A retainer that faces the distal end and is radially aligned with one of the outermost drive units around its axis. It is an elastic arm equipped with a surface, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The second arm distance is smaller than the first arm distance and less than or equal to the first interface distance. In the second position, the outer arm surface is separated from the axis, An elastic arm that is movable relative to an axis between, A drill bit equipped with [a specific feature]. XXXXIV. The interface includes at least four planes, item XXXXIII The drill bits described. XXXXV. The interface includes at least four corners, two of which are A drill bit as described in item XXXXIII or XXXXIV, which defines the outermost drive unit. XXXXVI. The interface includes multiple drive lobes, and of the drive lobes 2 The outermost drive unit is defined by the one described in any one of items XXXXIII to XXXXV. Lilbit. XXXXVII. Multiple drive lobes, including four or more drive lobes, item XXXXVI The drill bits described. XXXXVIII. An elastic arm is further defined as a first elastic arm, Extending from the proximal end of the shank to the end of the second arm, and the second outer arm surface that does not face the axis and It faces the distal end of the shank and is radially positioned around one of the outermost drive parts. It further comprises a second elastic arm having a retaining surface, The first and second elastic arms are, Each outer arm surface is on the axis at each first arm distance greater than the first interface distance. Each first position separated from, Each second arm is smaller than each first arm distance and less than or equal to the first interface distance. At a distance of 1, each outer arm surface is separated from the axis at each second position, Movable with respect to the axis between any one of terms XXXXIII to XXXXVII The drill bits listed in the section. XXXXIX. The elastic arm extends from the proximal end of the shank to the end of the arm, at least from the axis. Extending in a manner that partially separates, to any one of terms XXXXIII to XXXXVIII The drill bit described. L. The elastic arm is provided with finger portions at the end of the arm that provide a holding surface, item XXXXIX The drill bits described. The LI. finger section forms an inclined surface configured to bend the elastic arm toward the axis. The drill bit described in item L. LII. A shank extending along the axis between the proximal and distal ends, The cutting tip adjacent to the distal end of the shank, It is positioned between the proximal and distal ends, and is separated from the axis by a first interface distance. An interface equipped with at least one outermost drive unit, The outer arm surface extends from the proximal end of the shank to the end of the arm and does not face the axis, and the shank It is driven to the outermost position, facing the distal end, at angles of approximately 0°, 60°, 120°, or 180°. An elastic arm comprising a holding surface radially aligned with respect to the axis of the part, At a first arm distance greater than the first interface distance, the outer arm surface is from the axis. The first position, which is separated from the others, The second arm distance is smaller than the first arm distance and less than or equal to the first interface distance. In the second position, the outer arm surface is separated from the axis, An elastic arm that is movable relative to an axis between, A drill bit equipped with [a specific feature]. LIII. A method for preparing a depth sensing and measuring module for reuse, This is a measurement module that was used in the past. Measuring housing and Movablely coupled to the measuring housing, and straight along at least a portion of its length. A depth cannula with multiple teeth arranged in a linear fashion, A gear rotatably coupled to a measuring housing, the rotation and depth of the gear A gear is arranged with multiple teeth that mesh with each other so that the movement of the cannula is directly proportional. A displacement sensor assembly configured to generate a signal in response to the movement of a gear, A display integrated into the measurement housing, It is equipped with residual biological substances that result in contamination of the depth cannula and gears, Obtain a measuring module, which is mounted on one or more of the teeth and gears. That thing, Disassembling at least two components of the measurement module, To clean at least one of the contaminated depth cannula and the contaminated gear. , Reassemble the measurement module using either the cleaned gear or the cleaned depth cannula. To stand up, Sterilizing the reassembled measurement module, Methods that include... LIV. Cleaning both the contaminated depth cannula and the contaminated gear, Reassemble the measurement module using both the cleaned depth measuring cannula and the cleaned gear. To make arrangements, Sterilizing the reassembled measurement module, The method described in item LIII, further including the method described in item LIII. The step of disassembling the LV measurement module involves the contamination of the depth cannula and contamination. The procedure described in Section LIII or LIV, which includes separating the measuring housing from the gear. method. LVI. Further including the provision of a new depth measurement cannula, the measurement module has been redesigned. The assembly step involves measuring using cleaned gears and a new depth measuring cannula. The method described in any one of items LIII to LV, including reassembling a joule. . LVII. This further includes preparing a new measurement housing and reorganizing the measurement module. The assembly step involves reassembling the measurement module using a new measurement housing. The method described in any one of paragraphs LIII to LVI, including the act of doing so. LVIII. Further includes providing a new display and reorganizing the measurement module. The assembly step involves reassembling the measurement module using a new display. The method described in any one of items LIII to LVII, including the method described in the same item. LIX. The cleaning step removes tissue from the inside of the cannula, from the inside of the gear teeth. Any of items LIII through LVIII, including the removal of the tissue, or a combination thereof. The method described in item 1. LX. Previously used measurement modules, at least one of the used depth cannulas. The method further includes cleaning the bush and reassembling the part, which is provided with a bush surrounding the part. The next step is to reassemble the measurement module using the cleaned bushings. Including the method described in any one of the terms LIII through LIX. LXI. Previously used measurement modules, at least of the used depth cannula The method further includes providing a bush that encloses a part of it, The reassembly step involves reassembling the measurement module using a new bushing. Furthermore, the method described in any one of terms LIII to LX. LXII. Sterilization step involves exposing the reassembled measurement module to ethylene oxide gas. The method described in any one of the terms LIII to LXI, including the act of doing so. LXIII. The cleaning step involves cleaning the contaminated depth cannula and the contaminated gear. This includes performing an enzyme cleaning process, an ultrasonic cleaning process, or a combination thereof. The method described in any one of the terms LIII to LXII. LXIV. The measurement module used in the past is equipped with a measurement coupler, and the method is to measure The procedure described in any one of the clauses LIII to LXIII, further including cleaning the coupler. method. LXV. A method for preparing a reusable depth sensing and measurement module, This is a measurement module that was used in the past. Measuring housing and Movablely coupled to the measuring housing, and straight along at least a portion of its length. A depth cannula with multiple teeth arranged in a linear fashion, A gear rotatably coupled to a measuring housing, the rotation and depth of the gear A gear is arranged with multiple teeth that mesh with each other so that the movement of the cannula is directly proportional. A displacement sensor assembly configured to generate a signal in response to the movement of a gear, A display integrated into the measurement housing, It is equipped with residual biological substances that result in contamination of the depth cannula and gears, Obtain a measuring module, which is mounted on one or more of the teeth and gears. That thing, Disassembling at least two components of the measurement module, To detach the contaminated teeth of the depth cannula from the contaminated gear, Reassembling the measurement module using a new depth cannula, Sterilizing the reassembled measurement module, Methods that include... LXVI. The drill bit extends along the handpiece axis and is positioned within the bore of the drive cannula. With the setup in place, the drive cannula and drill are rotatable around the handpiece axis. Surgical handpiece assembly with handpiece housing assembly supporting bit A measuring module that facilitates alignment with the yellowtail, A measuring housing comprising a proximal region and a distal region, wherein the proximal region has a proximal surface, Movablely coupled to the measuring housing, the proximal and distal ends are arranged along the measuring axis. It has an end and a length between them, and measures the proximal and distal regions relative to the measuring housing. A depth cannula configured to move along an axis, A bore extending through the proximal and distal ends and configured to receive a drill bit , A portion of the measuring housing is received, and the proximal end protrudes through the proximal surface of the measuring housing. A bushing extending along the measurement axis between the distal end adjacent to the distal region of the measurement housing and the distal end. can be, A bore configured to receive a depth cannula, One or more projections extending into the bore of the bush, Inside, the bush and A depth cannula equipped with, It is configured to be removablely coupled to the handpiece housing assembly. A bayonet coupler, One or more electrical terminals extending from the proximal surface of the measuring housing and spaced apart from the bushing, , A displacement sensor assembly configured to generate a signal in response to the movement of the depth cannula. Ri and, A display integrated into the measurement housing, A measuring module equipped with this. LXVII. Attaches to handheld surgical instruments, providing measurement functionality to them. A measuring module that, A detection element configured to move only a distance that indicates the procedure parameter during the use of a surgical instrument. A mechanical assembly equipped with the necessary components, Removably connectable to a mechanical assembly, and connected to a mechanical assembly In some cases, the system is configured to detect the distance traveled by the sensing element of a mechanical assembly. , a sensor assembly that can operably engage with the detection element of a mechanical assembly, Equipped with, The mechanical assembly can withstand autoclave exposure, and the sensor assembly can withstand autoclave exposure. A measurement module that cannot withstand autoclave exposure. LXVIII. Sensor assembly with unsealed electrical components, The measurement module described in item LXXVII. LXIX. Mechanical assemblies without electrical components are referred to in item LXXVIII. The measurement module described. LXX. Mechanical assembly comprising a first casing, detection element, first casing A probe is provided, at least a portion of which is movably arranged within the first case. The measuring motor described in item LXXVIII is configured to be arranged in a straight line with respect to the single. Jules. LXXI. Sensor assembly removed from the first casing of the mechanical assembly. The measurement module described in item LXX, comprising a second casing that can be coupled in a manner. LXXII. The detected element is, A cannula movably coupled to the first casing, It is movably coupled to the cannula and rotates in response to the linear displacement of the cannula. A gear configured in such a way, Equipped with, The sensor assembly, when the first casing is coupled to the second casing, the gear A measuring module as described in item LXXI, which engages with and detects the rotational characteristics of a gear. LXXIII. Sensor assembly comprises a sensor, and the sensor is in a second casing. When coupled to the casing of 1, it is positioned to operably engage with the detection element. To that end, fixed to the second casing, one of terms LXXI to LXXII The measurement module described. LXXIV. Sensor assembly comprises a circuit and a sensor coupled to the circuit. The sensor is configured to provide an input signal based on the distance traveled by the detection element, and the circuit Based on the input signal, the distance traveled by the detection element is determined, and the movement of the detection element Item LXXIII is configured to generate a notification signal that notifies the user based on distance. The measurement module described above. The LXXV sensor assembly is electrically coupled to the circuit and receives notification signals from the circuit. It is configured to receive and display an indicator of the distance traveled by the detected element based on the notification signal. The measurement module described in item LXXIV, further equipped with visual indicators. LXXVI. A measurement module as described in item LXXIV, including an electrical sensor. LXXVII. The sensor assembly further comprises a power receiver, and the power receiver is the measuring module When the wire is attached to a handheld surgical instrument, it receives power from the handheld surgical instrument. A measurement module configured as described in any one of items LXXIII to LXXVI. LXXVIII. Distal region, proximal region, and a circle extending from the distal region toward the proximal region. A housing with a cylinder, A rearward drive point positioned within the proximal region of the housing, and a position within the distal region of the housing A drive system including a predetermined forward drive point, wherein the forward drive point and the rear drive point are Each of these is an attachment or a surgical end effector attached to the attachment. A drive system capable of driving the vehicle, A handheld surgical instrument equipped with these features. LXXIX. Surgical end effector is detachably coupled to the rear drive point. In some cases, it is configured to be detachably coupled to the distal region of the housing of the surgical instrument. A handheld surgical instrument as described in item LXXVIII, further equipped with a measurement module. LXXX. When the distal region of the surgical instrument housing does not have a measurement module, drive Further equipped with an attachment that can be detachably coupled to the system's forward drive point. , the handheld surgical instruments described in item LXXIX. LXXXI. Drive system, Terminates at one endpoint with a rear drive point and the opposite endpoint with a front drive point. A drive cannula, including its end length, is rotatably disposed within the housing, A motor that applies torque, It is configured to amplify the torque applied by the motor and transmit it to the drive cannula. The gear train and, A handheld surgical instrument as described in item LXXX, equipped with the features described. LXXXII. The measurement module consists of a casing, a circuit arranged inside the casing, and It is equipped with a power receiver coupled to the circuit, When the housing is connected to the measurement module, the measurement module Items LXXIX to LXXXI, equipped with a power supply configured to provide power to the receiver. A handheld surgical instrument as described in any one of the items. LXXXIII. Handheld surgical instruments with proximal and distal regions, along with measuring modules This method provides measurement functionality to a handheld surgical instrument using a module, and the measurement module is , a mechanical assembly equipped with a detection element, and a mechanical assembly that is detachably coupled to the mechanical assembly. It is possible to have a sensor assembly that can operably engage with a detection element of a mechanical assembly. It was a method, The measurement module is attached to the first handheld surgical instrument, During the first surgical period, the detection element moves by a distance indicating the treatment parameter. The use of handheld surgical instruments, Using a sensor assembly, the distance traveled by the detection element is detected, Separating the sensor assembly from the mechanical assembly of the measurement module, After the first surgical period, the sensor assembly of the measurement module will be discarded. During the second surgical period, use the first handheld surgical instrument or a different handheld surgical instrument. Reusing the mechanical assembly of the measurement module along with a second handheld surgical instrument. and, Methods that include... LXXXIV. Further including sterilizing the mechanical assembly after the first surgical period, The method described in item LXXXIII. LXXXV. Combine the mechanical assembly of the measurement module with the second sensor assembly. , further including providing measurement functionality during the second surgical period, item LXXXIII or L Method XXXIV. LXXXVI. When the measurement module is attached to the first handheld surgical instrument, The LXX clause further includes integrating the end effector with the proximal region of a handheld surgical instrument. The method described in any one of items XIII to LXXXV. LXXXVII. When the first handheld surgical instrument does not have a measuring module, the attack Section LXXXVI further includes attaching the ligation to the distal region of a handheld surgical instrument. Method of description. LXXXVIII. Handheld surgical instruments with housing and drive system, An attachment that can be detachably attached to a handheld surgical instrument, and has a functional operation. An attachment that can perform the following: A measurement module that can be detachably attached to a handheld surgical instrument, and has operational functions. A measurement module capable of performing associated measurement functions, A modular surgical system equipped with a modular design. LXXXIX. Housing of a handheld surgical instrument, equipped with a first coupling and a measuring module A second connector that can be detachably attached to the first connector of a handheld surgical instrument. The attachment is detachably connected to the first connector of the handheld surgical instrument. A modular surgical system as described in item LXXXVIII, equipped with a third connectable connector. . The XC measurement module receives only electrical energy from handheld surgical instruments and measures The mod listed in section LXXXVIII or LXXXIX, configured to perform the function The Jürg surgical system. The XCI attachment receives only mechanical energy from the drive system, and the operating mechanism A modular surgical system described in LXXXVIII, configured to perform the function. XCII. Drill having one or more elastic arms that engage with a surgical handpiece. A surgical handpiece assembly for operating a bit, A housing assembly comprising a proximal region and a distal region, Rotatably coupled to the housing assembly and responsive to torque received from the motor. A drive element configured to rotate and to transmit torque to the drill bit. A drive element equipped with a drive unit, It is adjacent to the proximal end of the drive element and maintains the axial position of the drill bit relative to the drive cannula. A retainer configured to assist one or more elastic arms of the drill bit. Holding surface, It is located close to the proximal end of the drive element and is movable to a first position and a second position relative to the holding surface. A release assembly equipped with a release member, wherein the release member is one or more drill bits By operably releasing the elastic arm from its engagement with the retaining surface, the release member is first In response to moving from position A to position B, the drill bit moves axially relative to the drive element. A release assembly configured to be movable in that direction, A surgical handpiece assembly equipped with [a specific feature / feature]. XCIII. A surgical handpiece system for performing measurement and surgical procedures. , It has a proximal region and a distal region, and a handpiece coupler is provided adjacent to the distal region. Handpiece housing assembly and Rotatably coupled to the handpiece housing assembly, the drive cannula is A drive element extending along the longitudinal axis and configured to receive torque from a motor, A handpiece assembly equipped with, Adjacent to the distal region, it is detachably coupled to the handpiece housing assembly. It is a surgical attachment module that can be used for various surgeries. By working in conjunction with the handpiece connector, surgical attachments can be placed adjacent to the distal region. The handpiece housing is detachably attached to the handpiece housing assembly. A surgical attachment housing equipped with a surgical attachment connector configured as follows: , Rotatably coupled to the surgical attachment housing, and torque from the drive element. A drive shaft configured to operate the end effector in response to, A surgical attachment module equipped with, Adjacent to the distal region, it is detachably coupled to the handpiece housing assembly. A capable measurement module with measurement functions associated with the operation of the handpiece assembly. It is configured to perform the measurement and includes a measuring housing and a measuring coupler, and the measurement The combiner, in cooperation with the handpiece combiner, positions the measurement housing adjacent to the distal region. The hub is configured to be detachably coupled to the handpiece housing assembly. And, the measurement module, A surgical handpiece system equipped with [features / equipment].

Claims

1. A shank extending along the axis between the proximal and distal ends, The cutting tip portion adjacent to the distal end of the shank, An interface disposed between the proximal end and the distal end, comprising at least two outermost drive units spaced apart from each other to define the maximum drive dimension of the interface, wherein each of the at least two outermost drive units is separately spaced apart from the shaft by a first interface distance and has a shape that allows it to be removably and non-rotatably received within a hexagonal bore, The shank comprises an outer arm surface extending from the proximal end to the arm end and facing away from the axis, and a retaining surface facing the distal end of the shank and radially aligned with one of the at least two outermost drive parts around the axis, A first position in which the outer arm surface is separated from the axis by a first arm distance greater than the first interface distance, A second arm distance is smaller than the first arm distance and less than or equal to the first interface distance, and the outer arm surface is at a second position separated from the axis, An elastic arm that is movable relative to the axis between, A drill bit equipped with [a specific feature].

2. The drill bit according to claim 1, wherein the interface includes six planes.

3. The drill bit according to claim 1 or 2, wherein the interface includes at least four corners, two of which define the at least two outermost drive portions.

4. The drill bit according to claim 3, wherein the interface includes at least six corners.

5. The drill bit according to any one of claims 1 to 4, wherein the interface includes a plurality of drive lobes, two of which define the at least two outermost drive parts.

6. The drill bit according to claim 4, wherein one of the elastic arm and the drive lobe includes a common bisecting plane that intersects the axis and defines two equal portions of the elastic arm and two equal portions of at least one of the at least two outermost drive portions.

7. The aforementioned elastic arm is further defined as a first elastic arm, The device further comprises a second elastic arm having a second outer arm surface extending from the proximal end of the shank to the second arm end and facing away from the axis, and a second retaining surface facing the distal end of the shank and radially aligned with the other one of the at least two outermost drive units around the axis, The first and second elastic arms, respectively, A first position in which the outer arm surface is separated from the axis by a first arm distance greater than the first interface distance, A second position in which the outer arm surface is separated from the axis by a second arm distance that is smaller than the first arm distance and less than or equal to the first interface distance, A drill bit according to any one of claims 1 to 6, which is movable with respect to the axis between the two points.

8. The drill bit according to any one of claims 1 to 7, wherein the elastic arm extends at least partially away from the axis from the proximal end of the shank to the end of the arm.

9. The drill bit according to any one of claims 1 to 8, wherein the elastic arm is provided with a finger portion at the end of the arm that provides the holding surface.

10. The drill bit according to claim 9, wherein the finger portion constitutes an inclined surface configured to bend the elastic arm toward the axis.

11. The interface extends along the axis between the distal end of the interface and the proximal end of the interface, and the interface length is defined between the distal end of the interface and the proximal end of the interface. The drill bit according to any one of claims 1 to 10, wherein the retaining surface is separated from the proximal end of the interface by a retaining distance equal to or greater than the interface length.

12. The interface extends along the axis between the distal end of the interface and the proximal end of the interface, and the interface length is defined between the distal end of the interface and the proximal end of the interface. The drill bit according to any one of claims 1 to 11, wherein the shank has a shank length defined between the distal end and the proximal end, and which is three times or more the interface length.

13. A drill bit according to any one of claims 1 to 12, with a cannula attached.

14. A twist drill bit according to any one of claims 1 to 12.

15. The drill bit according to any one of claims 1 to 14, wherein the elastic arm and one of the at least two outermost drive units are located within 15° of each other radially with respect to the axis.

16. The drill bit according to any one of claims 1 to 15, wherein the retaining surface and one of the at least two outermost drive portions include a common bisecting plane that intersects the axis and defines two equal portions of the elastic arm and two equal portions of one of the at least two outermost drive portions.

Images