Powered surgical drill having rotating field bit identification

Abstract

To provide a surgical drill system which includes a surgical drill and a drill bit assembly having an identification feature.SOLUTION: An identification feature is detected by a surgical drill in order to identify a drill bit assembly when the drill bit assembly is connected to the surgical drill. The surgical drill may include a measurement module having a measurement cannula, with a sensor included in the surgical drill. The sensor senses a magnetic field through the measurement cannula to identify the connected drill bit assembly. The surgical drill may also have a controller configured for controlling the operation of the connected drill bit assembly based on the identified drill bit assembly.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] [Related Applications] This patent application is a continuation of U.S. Provisional Patent Application No. 62 / 848,0 filed on May 15, 2019. No. 29 and U.S. Provisional Patent Application No. 62 / 848,038, filed May 15, 2019 This application claims priority to and the entire benefit of all of the above-referenced patents, the disclosures of which are incorporated herein by reference. All such rights are hereby incorporated in their entirety. [Background technology]

[0002] As a type of powered surgical tool or powered surgical system used in orthopedic surgery, A surgical drill tool includes a housing that contains a motor. A coupling assembly or coupler, which is also part of the drilling device, connects the drill bit to the motor. The drill bit is held in place by a metal rod such that when the motor is activated, the drill bit rotates. The device, as its name suggests, is used to drill a target object, e.g. tissue, against which a drill bit is applied. One type of surgical procedure that requires drilling is a surgical procedure to repair a broken bone. In this type of procedure, a bone fracture may be held together by using a surgical knife. A thin rod, sometimes called an intramedullary nail, is used to hold the nail in place. One or more holes are drilled into the bone. These holes are aligned with complementary holes in the nail. The bone and nail holes are aligned immediately. These screws hold the nail in place relative to the bone. .

[0003] In another type of procedure, an implant or prosthesis known as a plate is used to bridge multiple fracture segments of a bone. The plates are fixed to the outer surfaces of the grafts in the graft area, holding the sections together. The screws The plate is held in place in each section of the bone. The screws that hold the plate are then inserted into the bone. First, a hole must be formed to receive the screw.

[0004] As part of a procedure used to create holes in bone to receive screws, It is desirable to know the depth of the hole from end to end. This information allows the surgeon to determine the This allows the user to select the size of the screw that will be fitted. If the screw is too short, If so, the screw will secure and hold the intramedullary nail into which it is inserted in place. If the screw is too long, the screw If the screw protrudes too far out of the bone, If this were the case, the exposed end of the screw could rub against the surrounding tissue. If this were to happen, the tissue scraped by the screw could be damaged. Thus, in many bone drilling procedures, measurement of drill depth is essential. Summary of the Invention

[0005] The present disclosure addresses some of these challenges. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a perspective view of a surgical system including a surgical instrument and an end effector shown as including a drill bit having an identification feature and a tip protector according to one configuration. [Diagram 2]FIG. 2 is a partially exploded perspective view of the surgical system of FIG. 1 , with the surgical instrument shown with the measurement module, drive assembly, and release mechanism spaced from the handpiece body, and with the end effector removed from the surgical instrument and shown with the tip protector spaced from the distal cutting tip portion of the drill bit. [Diagram 3] FIG. 3 is a partially exploded perspective view of a portion of the surgical instrument of FIGS. 1-2, with the drive assembly and release mechanism shown spaced apart from the phantom outline of the handpiece body to show the actuator assembly. [Figure 4] 4 is a partial isometric cross-sectional view taken along line 4-4 of FIG. 1 showing the configuration of identification features and sensors located within the measurement module. [Diagram 5] 5 is a cross-sectional view taken along the length of the surgical instrument of FIGS. 1-4 showing the arrangement of identification features and sensors located within the measurement module. FIG. [Figure 6] FIG. 6 is a perspective view of the drill bit assembly of FIGS. 1-2 and 4-5 with an identification feature. [Figure 6A] 7A is a cross-sectional view of the drill bit assembly of FIG. 6 taken along line 6A-6A according to one configuration. [Figure 6B] 7 is a cross-sectional view of the drill bit assembly of FIG. 6 according to another configuration. [Figure 6C] 7 is a cross-sectional view of the drill bit assembly of FIG. 6 according to another configuration. [Figure 6D] FIG. 6C is a cross-sectional view of the drill bit assembly of FIG. 6 taken along line 6C-6C. [Figure 7] FIG. 3 is a perspective view of the drill bit assembly of FIGS. 1 and 2 with an identification feature coupled to the sleeve. [Figure 7A] 7A is a cross-sectional view of the drill bit assembly of FIG. 7 taken along line 7A-7A according to one configuration. [Figure 7B] 8 is a cross-sectional view of the drill bit assembly of FIG. 7 according to another configuration. [Figure 8] 8 is a partial isometric cross-sectional view taken along line 8-8 of FIG. 1 showing the configuration of identification features and sensors located within the handpiece body. [Figure 9] 2 is a cross-sectional view taken along the length of the surgical instrument of FIG. 1 showing an arrangement of identification features and sensors located within the handpiece body. [Figure 10A] FIG. 6 is a partial schematic diagram of the drill bit, identification feature, guide bushing, measurement cannulation tube, and sensor of FIGS. [Figure 10B] FIG. 10 is a partial schematic diagram of the drill bit, identification feature, measurement cannula, and sensor of FIG. 4-5 or FIG. 8-9 with the measurement cannula in a fully distal position. [Figure 10C] FIG. 10 is a partial schematic diagram of the drill bit, identification feature, measurement intubation, and sensor of FIG. 4-5 or FIG. 8-9 with the measurement intubation in a proximal position relative to a fully distal position. [Figure 11] 7 is a perspective view of a drill bit according to an alternative configuration having a distal end diameter D2 larger than the distal end diameter D1 of the drill bit of FIG. 6. FIG. [Figure 11A] FIG. 11A is a cross-sectional view of the drill bit assembly of FIG. 11 taken along line 11A-11A according to one configuration. [Figure 11B] FIG. 11 is a cross-sectional view of the drill bit assembly of FIG. 11 taken along line 11B-11B. [Figure 12] 7 is a perspective view of a drill bit according to an alternative configuration having a different distal flute design than the distal flute design of the drill bit of FIG. 6. FIG. [Figure 12A] 12A is a cross-sectional view of the drill bit assembly of FIG. 12 taken along line 12A-12A according to one configuration. [Figure 12B] 12B is a cross-sectional view of the drill bit assembly of FIG. 12 taken along line 12B-12B according to another configuration. [Figure 13] FIG. 13 is an elevational view of the programming jig and the sleeve of the drill bit. [Figure 14A] 14A is a cross-sectional view of the pole piece and sleeve of the programming fixture of FIG. 13 taken along line 14A-14A with the sleeve in a first orientation. [Figure 14B] FIG. 14B is a cross-sectional view of the pole piece and sleeve of FIG. 14A, with the sleeve in a second orientation. [Figure 14C] FIG. 14C is a cross-sectional view of the pole piece and sleeve of FIGS. 14A and 14B, with the sleeve in a third orientation. [Figure 14D] FIG. 14B is a cross-sectional view of the pole piece and sleeve of FIGS. 14A-14D, with the sleeve in a fourth orientation. [Figure 15] FIG. 1 is an elevational view showing a drill bit configuration including a drill bit and multiple rows of magnetic material coupled to a sleeve. [Figure 16] FIG. 1 is an elevational view showing the configuration of a drill bit assembly including a drill bit having a row of magnetic material coupled to each of two sleeves. [Figure 17A] FIG. 1 is an elevational view showing a drill bit having a measurement cannulation and a first tip length. [Figure 17B] FIG. 13 is an elevational view showing a drill bit having a measuring cannula and a second tip length. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] With reference to the drawings, a surgical instrument is shown which performs operative functions typically associated with medical and / or surgical procedures. A surgical system or surgical drill system for performing the procedure is shown in FIG. 1-2 at 60. FIG. 1 is a schematic diagram of a second embodiment of the invention; FIG. 2 is a schematic diagram of a second embodiment of the invention; In some configurations, the surgical drill system 60 is used with a surgical handpiece. In the exemplary configuration shown herein, a surgical drill The system 60 is used to facilitate drilling of a treatment object, such as tissue or bone of a patient. Unless otherwise indicated, the term "workpiece" as used herein means a It is to be understood that the term "can alternatively refer to tissue and / or bone." To achieve this, the illustrated configuration of the surgical drill system 60 includes a surgical drill device 61. The surgical drill device 61 is a handheld surgical instrument 62, also referred to as a hand-held surgical instrument. and an end cap (generally indicated by the reference numeral 64) connected to the handpiece 62. The end effector 64 includes one or more interchangeable drills. A drill bit assembly 65 is provided, which comprises a bit 66 and a tip protector 68. Devices other than surgical drill devices having the features described herein, e.g. Thus, the end effector 64 can be used to drive a screw or other Alternatively, the surgical implant may comprise a bit configured to drive the surgical implant. The end effector may be implemented as a reamer.

[0008] As best seen in FIG. 2, each of the one or more drill bits 66 is When coupled to base 66, cutting tip portions generally designated by the numeral 70 and 72 are The axis AX (i.e., the long axis AX or axis AX) is generally indicated by In addition, FIG. 2 shows a single drill bit as a representative example. 66 is shown. The cutting tip portion 70 is configured to engage the subject and is inserted. The recess 72 facilitates removable attachment of the drill bit 66 to the handpiece 62. To allow for connection of a drill bit 66 to the handpiece 62, To this end, various configurations of the insert are contemplated, such as various grooves, slots, and other geometric shapes. One exemplary configuration of an insert portion is found in U.S. Pat. No. 10,159,495. This document is incorporated herein in its entirety by reference. Other configurations for facilitating attachment of drill bit 66 to handpiece 62 are contemplated. can be.

[0009] As also shown in FIG. 2, each of the one or more drill bits 66 is aligned along an axis AX. Each of the drill bits 66 is generally indicated by the numeral 176. The shank 176 has a proximal end 178 and a distal end 180. The shank 176 extends along the axis AX between the distal end 180 of the shank 176 and the distal end 180 of the shank 176. The distal portion of the stator 6 defines a flute groove 182. The flute groove 182 is oriented about an axis AX. and a drill bit arranged in a spiral to facilitate drilling of a treatment object, such as tissue. 66 to a cutting tip portion 70 (see FIG. 2). The shaft 66 includes a bearing region 176 connected to the shank 176 between a proximal end 178 and a distal end 180. 84. In many configurations, the bearing area 184 is integral with the shank 176. The bearing area 184 is connected to a measurement module coupled to a handpiece (discussed in more detail below). The measurement tube 134 of the module 128 is adapted to be received within the measurement tube 134 and rotate relative to the measurement tube 134. Here, the bearing area 184 is dimensioned along the length of the drill bit 66. 176 defines a "stepped" outer region of the shank 176 that provides enhanced rotational support, as shown. configuration has a larger diameter than adjacent distal and proximal regions of the shank 176. However, the bearing region 184 of the shank 176 of the drill bit 66 is within the scope of this disclosure. It is to be understood that the present disclosure may be modified without departing from the spirit and scope of the present invention. , drill bit 66, which has similar features. Other suitable end effectors or rotating end effectors, such as burrs or reamers It should also be understood that this may be configured.

[0010] The plurality of drill bits 66 are configured to couple to the surgical handpiece 62. Each of the plurality of drill bits 66 has at least one characteristic or property. Representative drill bits 66a, 66b, and 66c are shown in FIGS. These different performance features or characteristics are This can result in variations in the performance of the surgical drill system 60 during use depending on how it is used. In other words, Figs. 6A-6D, 7-7B, 11-11A, and 12-12B In the configuration shown, each drill bit 66a, 66b, 66c has a unique combination of performance characteristics. Specifically, the drill bit 66 has characteristics or performance characteristics that allow it to penetrate more deeply into the bone during use. At or near the distal end 180 to allow for the formation of larger or smaller holes. For example, drill bit 66b in FIG. 6 and 6C. Further, the drill bit 66c of FIG. 12B has a diameter D3 that is greater than The diameters D1, D2 of the drill bits 66a, 66b are different.

[0011] Another performance feature is the arrangement of the helical flute grooves 182. The grooves 182 have various spiral configurations or spiral groove depths that vary the cutting efficiency. In one configuration shown in FIG. 12, the drill bit 66c has a helical structure as shown in FIG. The helical structure 183B is the same as the drill bit 66a in FIGS. 11 drill bit 66b spiral structure 183A at the distal end 180. The number of helices per drill bit is large. An additional performance feature is the length of the drill bit 66, which is approximately the same as that of a surgical drill. Depending on the bone thickness that the system 66 is used for, the thickness of the bone may vary. The material selection for the drill bit 66 itself also varies. of drilling efficiency or heat transfer compared to drill bits 66 of other materials , which may have adverse effects on the surgical drill system 60. Other performance features include: In particular, each drill bit 66 has a rake angle or point angle of the cutting tip portion 70. By including these unique combinations of performance features and characteristics, the surgical drill system The operator at 60 has a wide variety of options for drilling the treatment object. In addition, these performance features provide several benefits during operation, as described further below. The handpiece 62 may be identified by the handpiece 62 that performs the operation.

[0012] Assisting the operator in determining which drill bit 66 is connected to the handpiece 62 To assist, an identification feature 177 that identifies each drill bit 66 is provided on the drill bit assembly. The identification feature 177 may be provided on each drill bit 66 of the drill bit 65. 66 or end effector 64 and associated performance characteristics. For example, the surgical drill may be identified based on identification feature 177a (shown in FIGS. 6, 6A, and 6B). The drill device 61 has a drill bit 66a configured for drilling small bone holes, i.e. , the distal portion of the drill bit 66a is approximately 2 mm or less (used for small bones such as the foot or hand) On the other hand, the identification (shown in Figs. 11 and 11A) Based on feature 177b, the surgical drilling device 61 is configured such that the drill bit 66b is The drill bit 66b is configured for drilling, i.e., the distal portion of the drill bit 66b is adapted for drilling into the femoral (used for large bones such as these) have a diameter of about 3.2 mm or more, or 2 mm to 3. The device is designed to drill holes in bone with drill bits of diameters between 1.0 and 2.0 mm. Further, based on the identification feature 177c (shown in FIGS. 12A and 12B), In addition to determining the diameter of each of the drill bits 66, the surgical drill device 61 also determines the diameter of each of the drill bits 66. 1, the flute grooves 182 adjacent the distal end 180 provide a more precisely determined drilling contour. From this information, the surgical drilling device 60 can determine the cutting It allows for a balance of factors such as efficiency versus temperature, and allows for more accurate depth of penetration (as explained below). It is also possible to calculate the length of the Based on knowledge gained from the identification features 177 on the associated drill bit 66, The operation of the surgical drilling device 61 for drilling holes can be more precisely controlled.

[0013] As shown in FIGS. 6, 7, 11 and 12, in various configurations, the identification feature 177 may be The lubricant 66 is disposed around the shank 176 between the proximal end 178 and the distal end 180 of the lubricant 66. The magnets 181 may be in the form of one or more magnets 181. The magnets 181 may be The magnets are arranged in a circumferential direction around the shank 176 of the slot 66. Other features 177, such as grooves, shells, or protrusions on the end effector 64, are also contemplated. Also, the type of end effector 64 connected to the surgical instrument 62 is displayed on the surgical instrument 62. To enable the identification of the user, various types of electronic devices, such as RFID (radio frequency identification) Frequency Identification), NOVRAM (Non-Volatile Random Access Memory), etc. are end-effect Further, the identification feature 177 may be laser etched, laser The optical feature 177a may be in the form of a print or label (FIG. 10A). -10C), the optical feature is located between the proximal end 178 and the distal end 180 of the drill bit. The shank 176 may be disposed between the shank 176 or within the shank 176 .

[0014] In configurations utilizing magnets 181 as the identification features 177, such magnets 181 may be 176 (see FIGS. 6A, 11A, and 12A). ), or may be directly coupled to the outer surface of the shank 176 (see FIG. 6A). 181 around at least a portion of the shank 176 between the proximal end 178 and the distal end 180 7A, or may be embedded in a sleeve 179 disposed in the 79 (see FIG. 7B). The shank 176 may include a lumen sized to be disposed over the shank 176. The sleeve 179 shown in FIGS. 15 and 16 is adapted to fit over the shank 17 of the drill bit 66. 16, the sleeve 179 is a tubular structure surrounding the shank 16 of the drill bit 66. It is contemplated that the sleeve 179 may be constructed from a layer disposed over the inner surface of the inner periphery of the sleeve 179. It may only partially surround the shank 176 of the drill bit 66 .

[0015] In the example of FIGS. 6B and 7B, for ease of viewing, the shank 176 is radially outward from its outer surface. 6B) or the magnets 181 radially outward from the outer surface of the sleeve 179. The extent of the magnet 181 (FIG. 7B) is exaggerated, but this extent is due to the fact that the magnet 181 is are intended to represent the relative magnitudes extending radially outward from each outer surface of sleeve 179. That is, the magnet does not adversely affect the rotation of the drill bit 66 during use. To avoid this and to facilitate insertion of the handpiece 62 into the drive cannula 116, a radius It is preferable that the radiator does not expand significantly in any direction.

[0016] The position of one or more magnets 181 in each of the configurations shown in FIGS. The size, angular distance, strength, polarity, and number are unique to each of the drill bits 66. The drill bits 66 function to distinguish each of the drill bits 66 from other ones of the drill bits 66. In the examples 6, 7, 11, and 12, the drill bits 66 are equiangularly spaced apart from one another about the axis AX. A single row of equally sized magnets 181 arranged in parallel is used for the surgical drill instrument 60. Instead of a single row of equally sized magnets 181 spaced equiangularly from each other, The representative configuration is shown. One or more magnets of equal magnitude in a single row. The number and angular distance of the stones 181 may be used to distinguish between various drill bits 66. In the example of FIG. 6, four magnets 1 of equal size are arranged angularly spaced apart from one another. FIG. 7 shows a single row of eight angularly spaced apart 81 . 11 shows a single row of magnets 181 of equal size. 12 shows a single row of equally spaced magnets 181, whereas FIG. 13 shows a single row of three equally spaced magnets 181. A single row of angularly spaced equal magnets 181 is shown. One or more magnets 181 are circumferentially disposed about the shank 176 and A second magnet array (not shown) may be configured to be spaced axially from the first magnet array. Like the first magnet array, each magnet in the second magnet array is controlled by its position, size, angular distance, strength, It is also contemplated that the magnets may differ in polarity from the other magnets in the magnet array. The number of magnets in each magnet row may be different or the same. Each magnet 181 in the row is aligned along or parallel to the axis AX. In addition, at least one of the magnet rows should be aligned angularly to each other. When viewed from a direction along the axis AX or a direction parallel to the axis AX, the magnet 181 is in contact with one of the other magnet rows. It is also conceivable that the magnets in the magnet assembly do not need to be aligned angularly with each other. In each drawing, the size and magnetic strength / magnetic direction of each magnet 181 are the same. 6, 7, 11 and 12 show four unique drill bit assemblies 65. Four specific examples of magnet configurations (consisting of multiple magnets 181 arranged in a single row) are shown, which correspond to the However, variations in the number, size, angular distance, strength, or location of magnets 181 are contemplated. Each unique combination includes an additional drill bit 66 and a corresponding drill bit assembly. In order to function to distinguish between the bridges 65, the bridges 65 may be configured to be different from each other.

[0017] The magnets 181 are positioned on each drill bit 66 and are controlled by the position, size, angular distance, collectively generate a magnetic field of a certain strength and direction based on a unique combination of strength and number. The magnetic material is made of

[0018] In another configuration shown in FIG. 6C, at least a portion of the shank 176 of the drill bit 66 is magnetized, and the outer surface 208 is such that the radial distance between the outer surface 208 and the axis AX is One or more recesses 21 which provide a non-circular cross section on a plane perpendicular to the axis AX so as to vary 0. The shank 176 defines a rotational axis AX of the shank 176. configured to provide a variation in the magnetic field in response to a variation in the radial distance of the outer surface 208 relative to the axis AX. In this manner, the one or more recesses are formed in one or more of the cutting tip portions 70. The sensor 201 constitutes an identification feature for identifying the performance characteristics of the drill. A bit 66 is coupled to the handpiece 62 and moves while rotating about an axis AX. The device may be constructed from a magnetoresistive sensor that generates a signal in response to a magnetic field applied to the sensor. is the varying radial distance between the outer surface 208 and the axis of the shank 176 of the drill bit 66. A surgical drill bit 62 is attached to a surgical drilling device or handpiece 62. A proximal coupling portion of the shank configured to engage a stylus device or handpiece 62. It has a different nature from radial distance.

[0019] As previously described for similar configurations, the performance characteristics of the cutting tip portion 70 are 66 length, the material of the drill bit 66, the distal end 18 of the shank 176 of the drill bit 66 0, the cross-sectional area of ​​the drill bit 66, the type of the drill bit 66, Select from the stake angle, the flute angle of the drill bit 66, and / or the point angle of the drill bit 66. It would be good to do so.

[0020] The one or more recesses 210 in the shank 176 are circumferentially disposed about the shank. The recess may be further defined as a row of recesses. A recess in the row of recesses may have a depth, arc length, or the like. In these combinations, the recesses may be different from at least one other recess in the row. The angular distance between the first recess in the row of recesses and the second recess in the row of recesses is The angular distance between the three recesses may be different or the same.

[0021] In other configurations, one or more recesses 210 are circumferentially disposed about the shank 176. a recess (not shown) disposed axially spaced apart from the first row of recesses 210 Similar to the first row of recesses 210, the second row of recesses 210 may define a second row of recesses 210. Each recess 210 in the second row of recesses 210 may be sized in depth, arc length, or a combination thereof. It is also contemplated that each row of recesses 210 may be different from other recesses 210 in the row. The number of recesses 210 in each recess may be different or the same. The plurality of recesses 210 in each row of 210 are oriented along or parallel to the axis AX. When viewed from the row direction, the recesses 210 are preferably aligned in a straight line with respect to the angle. At least one recess 210 of each of the recesses 210 is inclined from a direction along the axis AX or a direction parallel to the axis AX. It is also contemplated that the recesses 210 in the other rows do not have to be aligned angularly with each other when viewed from the other row. can be obtained.

[0022] In some configurations, the magnetic properties of magnet 181 (or magnetized drill bit 66 in FIG. 6C) The material is preferably a temperature sensitive magnetic material, i.e., it becomes magnetic when heated above its Curie point. A magnetic material that loses some or all of its magnetism when heated (i.e., exceeds its Curie point). The magnet 181 is a magnetic material that is at least partially demagnetized when heated to a temperature of 1000. A preferred magnetic material suitable for use at the normal operating temperature of the surgical drill system 60 ( (for example, room temperature in an operating room), but the drill bit 66 is autoclaved after use. At temperatures lower than the temperatures at which the product is purified or disinfected by a vacuum cleaner, for example, temperatures of 80°C or higher. The magnetic material is at least partially demagnetized by the magnetization.

[0023] Demagnetization of the magnets 181 in the drill bit assembly 65 ensures that each connected drill bit The generated magnetic field of a particular strength and direction is changed to be used to identify the assembly 65. This allows the operator to determine whether the magnetic field signal is The connected drill bit assembly 65 (identified based on not preheated above the demagnetization temperature during the purification and disinfection process You can have a reasonable level of confidence.

[0024] Conversely, if the drill bit assembly 65 is not identified based on the identified generated magnetic field. Once this is done, the operator can determine whether the connected drill bit assembly 65 (as previously described) is has already been heated to a temperature above the demagnetization temperature (implying prior use, i.e., purification and disinfection) or a drill bit assembly that does not include the identification features described herein. It can be reasonably concluded that

[0025] When the sleeve configuration best shown in the cross-sectional views of FIGS. 7A and 7B is used, sleeve 1 79 may be secured to a portion of the shank 176 between the proximal end 178 and the distal end 180. or may at least partially surround a portion of the shank 176. The magnet 181 connected to the bore 179 and sleeve 179 is adapted to rotate the associated drill bit during use. It rotates as the 66 rotates.

[0026] The sleeve 179, as well as the bearing area 184 of the drill bit 66, are 8. The measuring tube 134 is dimensioned to be received within the measuring tube 134 and rotate relative thereto. Therefore, the thickness of the sleeve 179 extending radially from the shank 176 is It is designed to be as thin as possible so that it can be fitted into the inner cavity of the measurement intubation tube 134. The outer surface of the rib 179 will not rub against the inner surface of the measurement cannula 134 during use.

[0027] The outer surface of the sleeve 179 is adapted to not adversely affect the rotation of the drill bit 66 during use. It is preferable that the shank 176 is designed to have a constant radial thickness. As shown in FIGS. 7A and 7B, the sleeve 179 is formed by one or more magnets 181. from materials that do not interfere with the magnetic field applied to them, alternatively referred to herein as non-magnetic materials. In some configurations, the sleeve 179 is constructed from a polymer. In some configurations, the polymer is adapted to withstand the normal operating temperatures of the surgical drill system 60 (e.g., For example, the room temperature in an operating room) but the drill bit 66 is autoclaved after use. The melting point or glass transition temperature is lower than the temperature at which the glass is processed, for example, 120° C. or higher. In other configurations, the polymer may have a melting point or glass transition temperature of 130° C. or greater. In a further configuration, the polymer has a melting point or glass transition temperature of 140° C. or greater. In yet another configuration, the polymer has a melting point or glass transition temperature of 150° C. or greater. Further, the polymer may be constructed from a durable, relatively hard plastic material. The sleeve 179 is preferably constructed to withstand the normal operating temperature of the surgical drill system 60 ( (e.g., room temperature in an operating room), but the drill bit is autoclaved after use. It may be made of other materials having a melting point lower than the processing temperature, for example, 120°C or higher. There are some good things to consider.

[0028] Another configuration of the drill bit assembly 65 with a sleeve 179 is shown in FIGS. In this configuration, sleeve 179 is made of a non-magnetic material and a magnetic material dispersed within the non-magnetic material. The magnetic material is such that no part of the sleeve 179 is more magnetic than any other part. It is preferable that the magnetic particles are uniformly dispersed in the non-magnetic material so that they do not become too strongly concentrated. The identifying feature is the magnetic material in the sleeve 179. Once programmed (i.e., calibrated) to identify the configuration of the cutting tip portion 70 The magnetic material may consist of flakes, pieces and / or solid particles. The material may be composed of neodymium magnets and / or samarium cobalt magnets. In the present construction, the magnetic material comprises iron, although other magnetic materials are contemplated.

[0029] An exemplary configuration for programming such a sleeve 179 is shown in FIGS. FIG. 13 shows the magnetic field 216 concentrated at several positions on the sleeve 179. The programming fixture 212 is shown with pole pieces 210 for bundling. In FIG. 14A, the pole piece 210 generates a magnetic field 216 having a first polarity on the sleeve 179. In FIG. 14B, the sleeve begins to move toward the pole piece 210 at a certain angle. As it rotates through an angle, the pole piece 210 focuses a magnetic field 216 having a first polarity. Thus, the magnetic material exposed to the magnetic field now rotates in a circular arc-length 218. At this point, the magnetic field 216 from the pole piece 214 is cut off. The sleeve 179 is oriented in the direction shown in FIG. 14C relative to the pole piece 214. It continues to rotate. In FIG. 14C, the magnetic field 216 from the pole piece 214 is not emitted. As a result, the arc length of sleeve 179 is of neutral polarity and does not radiate a magnetic field. Then, for a certain arc length 220 shown in FIG. 14D, a polarity opposite to the first polarity is applied. A magnetic field 216 having a second polarity is applied. 1 shows one configuration of a sleeve programmed with arc length and polarity. The sensor is configured such that the sleeve 179 is connected to the drill bit 66 and rotates about an axis. The fluctuations produced by the sleeve 179, which is selectively magnetized by programming at times. The sensor may be a magnetoresistive sensor that generates a signal in response to a magnetic field applied to the sensor. Figure 14D shows one configuration of the magnetic programming sequence. The programming sequence changes the programming parameters, e.g. The pulse frequency and phase offset of the magnetic field application, i.e., the arc of the magnetized portion of the sleeve 179 Angular offset of the angular distance between the length and the arc length of the non-magnetized portion of the sleeve 179 By saturating a portion of the material with more or less magnetic field from pole piece 214, the strength of the magnetic field to be generated; the speed at which the sleeve 179 rotates relative to the pole piece 214; It is also contemplated that the polarity of the fields, and / or combinations thereof, may be changed. The sleeve 179 shown in FIG. 14D is connected to the sleeve 179 during selective programming. Although the drill bit 66 does not include a drill bit 66, the drill bit 66 may be any type of programmable It is also contemplated that the sleeve 179 may be connected during ramming. The programming process involves rotating the sleeve 179 relative to the pole piece 210. The selective programming of the sleeve 179 includes the pole pieces 214 and By facilitating relative movement between the sleeve 179 and the It is also contemplated that the programmed sleeve 179 may be configured to provide an interference fit. It may be connected to the shank 176 of the drill bit by means of a fastener, adhesive, or the like.

[0030] As shown in FIG. 14D, the shape of the magnetic field is asymmetric with respect to the axis of the sleeve 179. The sleeve 179 may be divided into four quadrants around the axis, namely, a first quadrant, a second quadrant, It may be divided into a second quadrant, a third quadrant, and / or a fourth quadrant. The magnetic field generated by the second different from the magnetic fields generated by the first, second, and / or third quadrants The shape of the magnetic field of the sleeve 179 may be asymmetric along the axis of the shank 176. good.

[0031] One advantage of sleeve programming is that it allows you to program more than one sleeve. The drill bit system with the drill bit is manufactured in the same way, which allows different types of parts to be The advantage is that it is possible to reduce the number of products and the number of machines required to manufacture them. The sleeves 179 may be identical until programming. After programming, each The sleeve 179 has a unique configuration associated with the cutting tip portion 70 or the shank 176. As with the other configurations described herein, a distinct drill bit is provided. The cutting configuration of the different cutting tip portions 70 of the drill bit 66 depends on the length of the drill bit 66, the material of the drill bit 66, the diameter of the distal end 180 of the shank 176 of the drill bit 66, The cross-sectional area of ​​the bit 66, the type of the drill bit 66, the rake angle of the drill bit 66, The angle may be selected from the flute angle of the drill bit 66 and / or the point angle of the drill bit 66 .

[0032] As shown in FIG. 15, the sleeve 179 is made of two layers of programmed magnetic material. Specifically, the sleeve 179 may be circumferentially disposed around the shank 176. The other configuration has a first magnet row arranged in a programmable manner different from the first magnet row. Specifically, the second magnet array arranged circumferentially around the shank is The first arrangement of magnetic material is disposed axially spaced apart from the first magnet array. The programming emits a first magnetic field. A second programming of a second configuration of the magnetic material. emits a second magnetic field that is different from the first magnetic field.

[0033] In another configuration shown in FIG. 16, two differently programmed columns of magnetic material are In this configuration, the sleeve 179 includes a proximal sleeve portion 179a and a distal sleeve portion 179b. This allows multiple programs to be inserted into a single sleeve 179. Using multiple programmed rows of magnetic material without arranging the rows Alternatively, the drill bit assembly 65 may include three or more sleeve portions 179a, 179b, 179c, 179d, 179e, 179f, 179g, 179h ... It is also contemplated that 79b may be provided.

[0034] As with the other components of sleeve 179, the non-magnetic material of sleeve 179 is designed to withstand temperatures below 120°C. The magnetic material may have a glass transition temperature or a melting temperature. When the magnet is turned on, the magnet is at least partially demagnetized.

[0035] As previously mentioned, the sleeve 179 is adapted to withstand the temperatures at which the drill bit 66 is autoclaved. Preferably, the glass substrate is made of a material having a melting point or glass transition temperature lower than the melting point of the glass substrate. The material from which the sleeve 179 is made is suitable for use in autoclaving or cleaning / disinfecting processes at elevated temperatures. When exposed to temperatures above the melting point or glass transition temperature, such as during The sleeve material may be configured to melt or deform. Therefore, it is intended that the relative position of the magnet 181 within the sleeve 179 will change after melting or deformation. This is the magnetic field generated by magnet 181 coupled within sleeve 179. 4, thereby preventing the drill bit 66 of the drill bit assembly 65 from being identified. If optical identification features are used on the sleeve, similarly, melting of the sleeve material will and that the deformation is intended to change the appearance of the optical features after melting or deformation. For example, if labels are used, the sleeve to which the labels are attached Deformation of 179 may damage or distort the label, preventing its identification. The label will not self-destruct during autoclaving or when exposed to temperatures above 120°C. It may be a heat sensitive label configured to deform.

[0036] Similar to the demagnetization of magnet 181 described above, the sleeve 179 in the drill bit assembly 65 is melted. As a result of the melting and deformation, a subsequent shift in the position of the magnet 181 may occur. In this case, if such magnet 181 is not demagnetized when sleeve 179 melts or deforms, However, the number of magnets 181 connected to each other can be used to identify the drill bit 66 connected to each other. To modify or possibly eliminate a generated magnetic field of a specific strength and specific direction. In this way, the operator can identify identified individuals based on the identified magnetic field signals. The connected drill bit assembly 65 may be, for example, during cleaning and disinfection after a first use. Reasonably little preheating is required to ensure that the sleeve material has not been heated above its melting temperature. Conversely, if the drill bit assembly 65 is exposed to the generated magnetic field, If not identified based on the above, the operator may then 5 is the dissolution (implying prior use, i.e., cleaning and disinfection, as previously described) of the sleeve material. It has been preheated above its melting temperature or has an identifying feature as described herein. It can be reasonably concluded that the drill bit assembly 65 is not

[0037] The drill bit assembly 65 determines the demagnetization temperature of the magnet 181 and the sleeve material of the sleeve 179. In some instances, the magnet is preheated to a specific temperature above both the melting temperature of the magnet and the melting temperature of the magnet. The magnetic field generated by the magnet 181 acts to demagnetize the magnet 181 and melt the sleeve material of the sleeve 179. and the change in position of magnet 181 due to deformation.

[0038] The sleeve 179 may be connected to the drill bit 66 in a number of ways. In this configuration, the sleeve 179 slides over the proximal end 178 or the distal end 180 of the drill bit 66. The shank 176 may be moved in a desired position to provide a tight fit around the outer surface of the shank 176. In this configuration, the sleeve 179 (e.g., as shown in Figs. 6A, 11A, and 12A) The sleeve 179 may be preformed with an embedded magnet 181 or the magnet 181 may be Once installed, it is secured to the outer surface of sleeve 179 by adhesive or fasteners (not shown). In this configuration, an adhesive (not shown) may be used to attach the sleeve 179 to the shank 176. For fixation, it may be applied between the sleeve 179 and the shank 176 .

[0039] Additionally, the sleeve 179 is overmolded onto the drill bit 66 at the desired location. In one configuration, a magnet 181 is introduced into the mold along with the drill bit 66. 7A to form a sleeve 179 having an embedded magnet 181. To this end, the polymer forming the sleeve 179 is inserted between the drill bit 66 and the magnet 181. The mold cavity may be filled with the resin.

[0040] Alternatively, only the drill bit 66 is introduced into the mold and then the sleeve 179 is formed. A polymer for forming the molded article may be introduced into the mold cavity around the drill bit 66. The resulting structure is removed from the mold and magnets 181 are attached using adhesives or fasteners (not shown). or by an interference fit after a molding step. This will be the case.

[0041] Referring again to FIGS. 1-5, in the exemplary configuration shown herein, the handpiece The drill 62 is a handheld drill having a handpiece body 74 in the form of a pistol grip. The handpiece body 74 is removably attached to a battery 76. (The battery attachment is not shown in detail). However, the handpiece body 74 may be of any suitable shape, with or without a pistol grip. It is also contemplated that the handpiece 62 may have a drill bit 66. The handpiece body 62 is provided with a power supply 64 for supplying the power to the handpiece 62 for use in rotating the handpiece 62. The battery 76 can be removably attached to the battery 74. However, The handpiece 62 can be powered by an internal battery (e.g., a non-removable battery), an external console, or a Note that the device may be configured to have other configurations such as a tether connection to a rail, a power source, etc. It should be understood that other configurations are contemplated.

[0042] In the illustrated configuration, a battery 76 or other power source is connected to a controller (shown diagrammatically in FIG. 5). 78, which in turn controls input control buttons 80 (also shown in FIG. 3) and actuators 78. The input control buttons 80 and the actuator assembly 82 are in communication with each other. The rotor assemblies 82 are each supported by the handpiece body 74. The controller 78 generally comprises an actuator assembly 82 in response to actuation of an input control button 80. In the illustrated configuration, the input control buttons 80 are configured to facilitate actuation of the trigger. The actuator may have a cam-type configuration and may be responsive to actuation by a user (e.g., a surgeon), e.g., via the magnets (other than the magnets) and electrical signals generated by the Hall effect sensors, the controller 78 Therefore, in order for an operator to operate the handpiece 62, When the input control button 80 is actuated, the controller 78 draws power from the battery 76 to the actuator. The actuator assembly 82 is connected to a power supply 84. ... power supply 84 is connected to a power supply 84. , which generates a rotational torque that is used to rotate the drill bit 66. The body 74, battery 76, controller 78, and input control buttons 80 are each part of the present disclosure. To facilitate the generation of rotational torque in many different ways without departing from the scope. It may be configured.

[0043] As also shown in FIG. 3, the actuator assembly 82 includes an electric motor 84 and a gear The electric motor 84 and the gear set 86 are respectively connected to the handpiece body 7. 4. Motor 84 rotates in response to commands, signals, etc. received from controller 78. As best shown in FIG. 5, the motor is configured to selectively generate a torque. The rotor 84 is supported for rotation about an axis AX by a pair of bearings 90. A drive gear disposed adjacent to the gear set 86 drives the rotor intubation. The rotor tube 88 is connected to the rotor 88 and rotates simultaneously to transmit the rotational torque to the gear set 86. To this end, in the illustrated embodiment, gear set 86 is a two stage compound planetary gear set. The mechanism is generally embodied as a ring gear housing 94. The housing 94 includes, among other things, a bearing 90, as well as one or more retaining clips 98, a washer, The output hub 96 is rotatably supported via a bearing 100 and / or a seal 102. However, other configurations of gear set 86 are contemplated.

[0044] Further details of one configuration of the gear set 86 are described, for example, in the “Handheld External No. 15 / 887,507, filed under the title "Drill Bits for Surgical Instruments," This patent describes how the rotation of the drive gear by the operation of the motor 84 drives the output hub 96. and that the output hub 96 rotates simultaneously with the drill bit 66. The contents of this patent document are incorporated herein in their entirety by reference. The actuator assembly 82 is not intended to depart from the scope of this disclosure. In a non-limiting example, the actuation shown in the figure may be implemented in other ways. The actuator assembly 82 communicates the rotational speed between the drive gear of the motor 84 and the output hub 96. A compound planetary mechanism is used to adjust the speed and torque, but in some configurations other A gear set 86 of the type shown in the figure may be used. 2 uses an electric brushless DC motor to generate rotational torque, but other forms A prime mover of the formula may be used. Other configurations are also contemplated.

[0045] As previously mentioned, the rotational torque generated by the motor 84 causes the output hub 96 to rotate. Thus, the output hub 96 rotates simultaneously with the coupled drill bit 66. To achieve this To this end, as best shown in FIGS. 2-5, the handpiece 62 includes a drive assembly 1 The drive assembly 114 generally comprises an actuator assembly 8. 2 and is splined to the output hub 96 of the gear set 86. The assembly 114 is a removable attachment between the drill bit 66 and the handpiece 62. The drive assembly 114 is generally configured to facilitate the drive intubation 11 6, a driving head 118, and a driving body 120. The driving body 120 is a driving intubation tube. 116 and the drive head 118 and rotate therewith. 4 is coupled to the drive hub 96 via a splined engagement with the output hub 96 adjacent the drive intubation 116, as well as to the drive The handpiece is secured to the handpiece via an arrangement of bearings, washers, and seals adjacent the head 118. The drill bit is supported for rotation about an axis AX within the drill body 74. 66 is attached to the handpiece 62 so as to receive torque in a manner different from that described above. It is also conceivable that the method may be configured so that

[0046] Further details of the drive assembly 114 are described, for example, in U.S. patent application Ser. No. 15 / 887,507. No. 6,393,633, the contents of which are also incorporated herein by reference in their entirety. In the illustrated configuration, the drive head 118 of the drive assembly 114 includes: The handpiece includes connectors generally designated 126. Connectors 126 include handpieces When the rotor 62 is utilized in connection with an application other than rotating the drill bit 66 of the present disclosure, More specifically, the drive axle shown in the figure is provided to facilitate the transmission of torque. The assembly 114 is configured so that the handpiece 62 is connected to the hole 122 of the drive tube 116 or the drive head 1 18 connectors 126) for simultaneous rotation. Rotate, drive or actuate any type of surgical instrument, tool, module, end effector, etc. This configuration allows the same handpiece 62 to be used in multiple It should be understood that the present invention may be utilized in a variety of medical and / or surgical procedures. While the drive assembly 114 may be configured in some forms, for example, the handpiece 62 In a configuration specifically used with the drill bit 66 of the present disclosure, a drive head having a coupling 126 It is also contemplated that the present invention may be configured differently to omit the guide 118.

[0047] 1-3, the illustrated configuration of handpiece 62 includes a drill bit 66. A release mechanism, generally designated 150, configured to facilitate removal The coupling mechanism 150 generally comprises a release subassembly 152, a retention subassembly 153, and a locking subassembly 154. The holder body 154 and the housing adapter 156 are provided. The housing adapters 156 each connect the release subassembly 152 to the actuator assembly. Assembly 82 and handpiece body 74, but may be configured to fit many different may be implemented in other portions of the handpiece 62 in some configurations. They may be integrated.

[0048] As previously mentioned, the drill bit 66 generally comprises a cutting tip portion 70 and an insert portion 72. 12, extending along an axis AX between an interface 124 of the drill bit 66 and an interface 125 of the drive assembly 114. 1 through engagement between the bore 122 of the drive cannula 116 and the drive cannula 116 as described herein and shown generally in the drawings. As shown therethrough, the handpiece 62 is configured to be releasably attached thereto. The drive tube 116 is connected to the output hub 96 of the gear set 86 of the actuator assembly 82. 3 and 4. The drill bit 66 is engaged with the axis AX to facilitate rotation of the drill bit 66 about the axis AX.

[0049] The illustrated configuration of the surgical drill system 60 is generally designated by the numeral 128 (alternatively, The measuring device further comprises a measuring module (also called a measuring head). The module 128 is detachable from the handpiece 62 to provide measurement functionality to the surgeon during use. To achieve this purpose, the following is As best seen in FIG. 1, the measurement module 128 generally includes a housing 130, a guide bracket 132, and a 132, and a measurement intubation tube 134 (i.e., a measurement probe or depth measurement extension). The measurement cannula 134 is adapted to be placed against the treatment object 62 or tissue. A suitable example of a measurement module is described in International Patent Application Publication No. 2002 / 003363. No. 018 / 056251, the contents of which are incorporated herein by reference. The housing 130 is attached to the handpiece 62. Removably attachable to and generally supporting various components of the measurement module 128. The illustrated housings 130 are connected or attached together. The measuring module 128 is formed as a pair of housing components 138 that are connected to each other for cleaning or removing the measuring module 128. The measurement module 128 is configured to be disassembled for ease of inspection. The measurement module 128 may be formed as an integral component of the handpiece 52 or may be is attached or otherwise secured to the handpiece 62 so that it cannot be removed from the handpiece 62 after use. It should be understood that the method may be in the form of a component that is secured by the method.

[0050] In the illustrated configuration, the housing component 138 and the guide bushing 132 are complementary to one another. The feature may be formed, for example, in a housing component. The guide bushing 132 fits into the web or rib (not shown in detail) formed in the guide bushing 132. Through the notch, the relative axis between the housing component 138 and the guide bush 132 The guide bush 132 is arranged to prevent directional and rotational movement. It further includes a window 142 as will be described in detail below.

[0051] The measurement cannula 134 is disposed within the guide bush 132 and is axially aligned with respect to the handpiece 62. It is supported for translation along AX. (Partially shown in Figure 2) A groove 143 is formed transversely in the measurement cannula 134 and extends longitudinally. Although not specifically shown, the elongated recess 143 may be configured to receive a travel stop element. The travel stop elements are supported by the housing 130 and are similarly arranged in a guideway. The guide bushing 132 has an opening formed transversely in the side of the guide bushing 132. The fixed intubation tube 134 advances axially relative to the guide bush 132 and the housing 130. or the range in which the measurement intubation tube 134 can be retracted is limited, and the measurement intubation tube 134 is prevented from rotating around the axis AX. However, the measurement module 128 may be modified to prevent any deviation from the scope of this disclosure. The measurement tube 134 is configured to limit or prevent movement of the measurement tube 134 in other ways without It should be understood that this is also acceptable.

[0052] As shown, the measurement intubation tube 134 is connected to the gear 14 of the transducer assembly 136. 5, the gear 140 further includes rack teeth 144 disposed in threaded engagement with the gear 140. The window 142 in the bushing 132 is provided to facilitate the threaded engagement of the rack teeth 144 with the gear 146. The gear 146 is disposed adjacent to the transducer assembly 136 for The gear 146 itself includes a shaft portion 147 extending along a gear axis CAX. As the shaft 134 moves along the axis AX relative to the housing 130, the shaft 134 moves along the common gear axis C It can rotate 360° around AX.

[0053] The transducer assembly 136 measures the housing 130 along the axis AX. Generate an electrical signal (i.e., a transducer signal) that represents the change in position of the probe 134 To achieve this, the gear 146 rotates in response to the axial movement of the measurement probe 134. The change in position of the measurement probe 134 indicates the position of the surgical drilling device 61 relative to the treatment object. The relative position of the distal end 134A of the measurement intubation tube 134 with respect to the housing 130 when placed Thus, the transducer assembly 136 corresponds to an augmented surgical instrument 62. It should be understood that functionality can be provided by, for example, in some configurations , the transducer assembly 136 is disposed in communication with the controller 78 . The controller 78 may, for example, control the rotation of the drill bit 66 at a particular drilling depth into the treatment object. To slow down the rotation, the motor 84 is stopped or adjusted based on the movement of the measurement probe 134. The transducer assembly 136 may also be configured to to provide information regarding the movement of the measurement probe 134, e.g., real-time drilling depth, An output device 148, e.g., a display screen, is provided to display the maximum drilling depth and other data recorded in the history. The surface may be arranged to communicate with one or more light emitting diodes (LEDs), etc. Other configurations are possible. The output device 148 may be part of a removable measurement module. Further, the transducer assembly 136 and the measurement intubation 134 shown in FIG. cooperate to adjust the rack teeth 144 of the measurement intubation tube 134 and the transducer assembly 136 The gear 146 constitutes a rack and pinion design, but the transducer assembly The transducer 136 is responsive to the displacement of the measurement tube 134 relative to the housing 130. One or more sensors that generate a signal, such as potentiometers, optical sensors, and wires It is also contemplated that the input may comprise a variable differential transformer.

[0054] The measurement cannula 134 and guide bushing 132 may be made of various materials, preferably with an identifying feature. 177 / material that does not alter the signal / magnetic field characteristics generated by one or more magnets 181 The measurement intubation tube 134 and the guide tube 135 are preferably made of a material such as the non-magnetic material described above. Exemplary non-magnetic materials that may be used to form the bushing 132 include hard, durable There are several polymers that can be molded or otherwise formed into a desired shape. In one configuration, the polymer includes a hard plastic material.

[0055] As shown in FIGS. 4 and 5, the surgical drill system 60 is adapted to recognize the identification feature 177. The device also includes a sensor 201 configured to generate one or more signals (e.g., an identification signal). For example, the sensor 201 may detect the presence of a drill bit during operation of the surgical drill system 60. Drill bit assembly 65 is connected when assembly 65 rotates about axis AX. 5. Generate an identification signal in response to a magnetic field or magnetic resistance generated by one or more magnets 181. Specifically, as shown in FIGS. 4 and 5, the sensor 201 is configured to: An identification feature 177 associated with each associated drill bit 66, e.g. The magnetic field or magnetism generated by one or more magnets 181 coupled to the drill bit 66 is The sensor 201 is configured to generate an identification signal in response to air resistance (i.e., the sensor 201 is , a magnetic field sensor or a Hall effect sensor). The sensor 201 is When the measuring tube 134 rotates around the axis AX, the measuring tube 134 is connected to the sensor 201 and the identification feature The identification signal can be generated even if the sensor 201 is located between the sensor 177 and the sensor 202. The generated identification signal is received by each drill bit 66 coupled to the handpiece 62. The controller 78 receives and interprets the identification signal and receives and interprets the signal of the magnetic field characteristic, thereby determining whether the drill bit assembly 65 It is configured to identify the associated drill bit 66 .

[0056] The sensor 201 preferably includes an identification feature 177, such as one or more magnets 181. 4, each drill bit 66 is appropriately coupled to the handpiece 62 so as to be aligned with the axis A. When rotating around X (e.g., when the operator presses input control button 80), When the sensor 201 detects a magnetic field generated by the sensor, the sensor 201 can receive the generated signal / magnetic field. , the measurement intubation 134 is performed while the drill bit assembly 65 is rotating about the axis AX. Receive the signal / magnetic field generated through and optionally through the guide bush 132 It is advisable to position it as follows.

[0057] In one configuration, the sensor 201 is coupled to the measurement module 128 or In particular, the sensor 201 may be disposed within the drill bit assembly 128. When the bridge 65 is properly connected to the handpiece 62, an identification feature 177, e.g., one or more The housing 130 of the measurement module 128 is located adjacent to the magnets 181. The housing 130 may be coupled to or disposed within the housing 130.

[0058] More specifically, as shown in one configuration in FIGS. 4 and 5, the sensor 201 is mounted in a housing. 130 with respect to the drill bit assembly 65 in a direction perpendicular to the axis AX. When positioned on the opposite or rear side of the gear 146 of the transducer assembly 136 In such a configuration, the sensor 201 is aligned with the guide book in a direction perpendicular to the axis AX. The sensor 201 is aligned with the window 142 of the shoe 132. As best seen in FIG. 1A, the drill bit assembly 65 rotates about an axis AX. Then, the identification feature 177 is seen through the window 142 of the measurement intubation tube 134 and the guide bush 132. , e.g., a signal / magnetic field signal generated from one or more magnets 181 or optical features. The message will be received.

[0059] However, in other configurations, the sensor 201 may include an identification feature 177 / one or more magnetic A surgical drill system 6 capable of receiving signals / magnetic field signals generated from a stone 181 0 may be positioned within other stationary portions of the

[0060] For example, as shown in FIGS. 8 and 9, the sensor 201 may include one or more identification features 177 / 181. The sensor 201 may be supported within the dowel piece body 74, such that the sensor 201 is As in the previous example (shown in FIGS. 4 and 5) included in 128, sensor 2 01 can detect the identification signal / magnetic field signal. As best shown in Figures 8 and 9 In addition, the identification feature 177 / one or more magnets 181 are aligned perpendicular to the axis AX. 4 and 5 so as to be in line with the sensor 201 supported within the endpiece body 74. The relative position of the drill bit assembly 65 is greater than the relative position of the drill bit assembly 65 in the drill bit assembly 65. Relatively along the shank 176 of the drill bit 66 at a location near the insertion portion 72 The sleeve 179 may be disposed relative to the axial direction of ... For example, as shown in FIGS. 8 and 9, the sensor 201 may be configured to Depending on the position of the guide bush 132, the guide bush 132 may not be aligned in a direction perpendicular to the axis AX. The handpiece body 74 is disposed in the handpiece body 74 in the position shown in FIG.

[0061] More specifically, the sensor 201 in the housing 130 in FIGS. 4 and 5 or in FIGS. Depending on the positioning of the measurement intubation 134 relative to the sensor 201 in the handpiece body 74 A portion of the measurement intubation tube 134 is separated from the identification feature portion 177 in a direction perpendicular to the axis AX. In these examples, the measurement The fixed intubation tube 134 is biased forward by a gear 136 and a biasing member (e.g., a torsion spring). Thus, the measurement intubation tube 134 is biased to a sufficiently distal position, and the measurement intubation tube 134 is biased to a sufficiently distal position. The catheter is also under tension while in position.

[0062] In some configurations, the sensor 201 detects when the measurement intubation 134 is in a sufficiently distal position. The measurement module 128 is disposed proximal to the proximal end of the measurement intubation tube 134. As shown in FIG. 10B, a sensor 201 is disposed in the measurement head 128 and the measurement insert In a configuration where the tube 134 is proximal to a sufficiently distal position, the sensor 201 detects that the measurement intubation 134 The sensor 201 is disposed between the sensor 201 and the identification feature 177. 10B) shows a state in which the measurement intubation tube 134 has been moved distally relative to the positioning of the measurement intubation tube 134 in FIG. When the measurement intubation 134 is returned to a sufficiently distal position, as shown in FIG. The measurement intubation tube 134 is positioned so that it is not located between the sensor 201 and the identification feature 177. In either case, the drill bit assembly 65 rotates 360° about the axis AX. Upon rotation, the sensor 201 can detect the identifying feature.

[0063] Therefore, the configuration shown in FIGS. 10A-10C allows the measurement cannula 134 or guide bushing Other types of sensors 201 and associated identification features that cannot be detected through the sensor 302 For example, FIG. 10A-10C shows that the sensor 201 is an optical sensor. The identification feature 177 is in the form of a laser etched mark, a printed mark, or a The present invention shows an alternative configuration in the form of a laser mark or other optical mark (e.g., a laser in the shape of a "1"). (The user-printed characters 177a are shown in Figs. 10A-10C.) In these configurations, the drill When the bit assembly 65 is stationary or rotates 360° about the axis AX The optical sensor 201a can detect the individual laser-printed characters 177a. 10A-10C, the positioning of the sensor 201 allows the measurement intubation 13 Unless the guide bush 132 or the measurement tube 134 is transparent, the sensor and the identification feature are Identification feature 177a and sensor 2, which are normally unavailable when placed between 01a. Optical identification features, e.g. laser etched marks, markings The printing marks, or other marks, may be formed on a substrate that is coupled to the drill bit. The substrate may take the form of a heat sensitive label. The substrate may be attached to the drill bit by an adhesive. As with the magnet array, the optical identification feature may be attached to the drill bit 66 or the drill bit. AX with respect to each other in an orientation about the axis AX to provide a unique identification of the assembly 65. The optical marking may be composed of one or more rows of optical marks aligned in a straight line.

[0064] If the substrate takes the form of a thermal label, in some configurations the drill bit The optical features are no longer discernible after the product has been sterilized at temperatures above 120°C. It would be expected that

[0065] As shown in FIGS. 10A-10C, the optical sensor 201a includes an emitter (i.e., The optical identification feature 177a of the drill bit assembly 65 is used to identify the light source and receiver. and one or more lenses for focusing the light reflected by the In this configuration, the optical sensor 201a cooperates with the drill bit 66 to emit light to generate light. It may consist of a light emitting diode (LED) and a phototransistor to measure the reflection. Due to the shape of the drill bit 66 including the separate feature 177a and its reflective properties, the sensor 2 The emitter and receiver of 01 should be on the same plane, parallel to the drill bit 66. In these configurations, the identification feature 177a (e.g., FIGs. 10A-10C The laser mark 177a) shown in Figure 177 intentionally scatters light away from the receiver, resulting in As a result, strong reflection of light along the shank 176 without such identifying features 177a. This results in a weaker signal to the

[0066] In addition to the phototransistor, other configurations for detecting reflected light from the drill bit 66 are contemplated. For high-resolution detection, an optical sensor 201a similar to a camera is used to digitally capture the image. The optical sensor can obtain a sufficient image of the identifying feature 177a that is different from the digital signal. Other possible methods of light detection using the sensor 201a include visible spectrum LEDs or A method using a vertical cavity surface emitting laser (VCSEL) is one example. L can provide additional benefits in terms of power efficiency and light concentration. Another solution for focusing the emitted light for detection by the sensor 201a is to use a An aperture is built into the tip bushing to reduce the wide emission angle of the LED during use. Examples of methods include:

[0067] The controller 78 may include one or more microprocessors having memory units. The microprocessor processes the instructions, i.e., performs the functions described herein. For processing an algorithm stored in the memory to perform the following: Or alternatively, the controller 78 may be one or more microcontrollers, subcontrollers, , Field Programmable Gate Arrays, Systems on Chips, Discrete Circuits, and / or other suitable hardware capable of performing the functions described herein. The controller may include software or firmware. For example, the controller may include a measurement module. A second controller (e.g., a sub-controller, a processor, etc.) is disposed in the controller 128. , may be disposed within the handpiece 62. The second controller may control the motor of the handpiece 62. More specifically, the second control may be configured to generate a signal to activate the second control. The transducer is received by the first controller 78 in the measurement module 128. and controlling the relative magnitude of the torque generated by the motor based on the signal and the identification signal. The controller 78 is supported within the handpiece body 74 as shown in FIG. or may be located within the surgical drill system 60, for example, on the measurement head 128. The memory may be located in a central location, or may be located remotely. The memory may be any suitable memory for storing a programmable readable code. For example, is a local memory, external memory, or random access memory (RAM), non-volatile R AM (NVRAM), cloud-based memory embodied as flash memory, or may be any other suitable type of memory.

[0068] In some configurations, the controller 78 includes an internal clock for keeping track of time. For example, the internal clock may be a microcontroller clock. As a controller clock, a crystal resonator, a ceramic resonator, a resistor, and a capacitor (R C) Oscillators, or silicon oscillators, other than those disclosed herein. An internal clock can be hardware, software, or In some configurations, the memory, the microprocessor, The microcontroller clock and the microcontroller clock work together to send signals to the various components and The components are operated according to certain timing parameters.

[0069] The controller 78 includes at least an input control for controlling the operation of the surgical drill system 60. A control button 80, an actuator assembly 82, a drive assembly 114, The measurement module 128 (including the sensor assembly 136) and the sensor 201 are each provided with a power supply. are electrically connected.

[0070] Specifically, the controller 78 may transmit the identification signal generated by the identification feature 177 to the sensor 2. 01. Identification feature 177 is configured to receive from each drill bit assembly. The drill bit 66 is attached to the shaft AX by appropriately connecting the drill bit 65 to the connector 26 and the housing 130. When the controller 78 rotates around the center of the sensor 201, the microphone The processor is preprogrammed with an algorithm that contains a list of known identification signals. Each part of the list of known identification signals has its own unique identification code. One or more drill bits 66 or drill bit assemblies 65 having a feature 177 Thus, when a received identification signal is compared with a list of known identification signals, , a match is identified (thus determining whether the unique configuration of the identification feature 177 or magnet 181 exists). Each of the drill bit assemblies 65 including the respective drill bit assemblies 65 is positively identified, and then the control The instrument 78 then performs a drilling operation on the surgical drill system 60 based on the identified drill bit assembly 65. This will control the operation of the

[0071] For example, a user may rotate the handpiece 62 so that the drill bit 66 moves about an axis AX. When manipulated to rotate, the algorithm detects the distinguishing features detected by the sensor 201. The present invention relates to a method for processing a change in an identification signal generated by a processing section, and analyzing the generated signal pattern. For example, the time between the edges of the identifying feature 177 may be measured or within a very small time interval. The algorithm is set up to analyze the secondary pattern by drilling several times the drill bit 66. Check for an identification signal pattern during the transfer. If the pattern is detected and confirmed, the algorithm The algorithm verifies this pattern against a list of known identification signals and Each drill bit assembly 65 is identified based on matching this pattern.

[0072] For example, matching of a received identification signal to a known identification signal, i.e., a known magnetic field signature. A match of the received magnetic field signature signal to the signal (or magnetoresistive signature signal) indicates that the coupled drill The controller 78 determines whether the input is a positive or negative input based on the bit assembly 65 and typically is When the displayed image is displayed on the output device 148 for viewing by a user of the surgical drill system 60 The drill bit assembly 65 connected to the handpiece 62 is properly positioned. have one or more identifiable performance characteristics known to be desirable (i.e., drill bit The mat assembly 65 includes an identification feature 177 / magnet 181 and is sized to fit the length, diameter, flute design, , material selection, and combinations thereof) This increases the confidence level and makes drilling operations safer. This results in:

[0073] Alternatively, if a match is not confirmed by the controller 78, i.e., the properly linked It is assumed that the drill bit assembly 65 corresponds to a known drill bit assembly 65. If the match is not identified by the sensor 201, the lack of a match is visually detected by the operator. 148 for displaying the connected drill bit assembly. 65 controls based on length, diameter, flute design, material selection, and combinations thereof. This requires the operator to verify that the person has not been identified by the The deficiency is whether the connected drill bit assembly 65 has been used before or not. Regardless of the above, it is to be understood that the drill bit assembly 65 does not have the identification feature 177. Alternatively, this lack of evidence may be due to the identification of the drill bit 65 in the form of a magnet 181. The magnet 181 has a feature 177 that has been previously used to demagnetize the magnet 181 (when it is to be used). and / or the drill bit is heated to a temperature sufficient to deform the sleeve 179. The assembly 65 was reprocessed for further use by heating it. Based on this, the operator may choose to It may be decided not to commence a bone drilling operation using the lil bit assembly 65. .

[0074] In addition to identifying the associated drill bit assembly 65, the controller 78 1 corresponds to the relative positioning of the distal end 134A of the measurement intubation tube 134 with respect to the mounting 130 ( Transducer signals (alternatively called displacement signals) are fed to the transducer array. The controller 78 is configured to receive the identification signal and the received signal from the identification assembly 136. Based on the transducer signal, the drill bit assembly connected to the handpiece 62 is The actuator 60 is configured to control the transmission of torque to the bridge 65 and to the treatment object.

[0075] Specifically, the controller 78 may determine, based on the movement of the depth measuring extension, for example, of the transducer signals received during a certain time in a first time interval (as shown in and determining an acceleration signal based on the movement of the distal end 134A of the corresponding measurement intubation tube 134. The controller 78 may be configured to control the movement of the object to be treated based on the determined acceleration signal. The drill bit assembly 65 may be further configured to determine a penetration depth of the associated drill bit assembly 65. Specifically, the controller 78 may determine, based on the acceleration signal, The penetration time (Tb) of the drill bit 66 through the treatment object is determined. From this information, the received In conjunction with the acquired transducer signal and the received identification signal, the controller 78 executes an algorithm is used to determine the depth of the perforation, i.e., the depth of the perforation passage, within the treated object.

[0076] Thus, the controller 78 can precisely form holes of a predetermined desired depth and diameter in the treatment object. Interchangeable drill bit assemblies that are linked and identified to control drilling It is further configured to control the delivery of torque to assembly 65 .

[0077] In one configuration shown in FIGS. 17A and 17B, the controller 78 determines the identity of the drill bit 66. from one or more signals received from the transducer assembly 136 using Determine the offset to be applied to the penetration depth to be cut by the drill bit 66. Tip portion 70 is a drill bit extending proximally along axis AX from the distal end of drill bit 66. The drill bit 66 has a bit tip 222. The drill bit tip 222 is located at the distal end of the drill bit 66. 176 toward the distal end 180 of the shank 176. At least a distal portion of the drill bit is generally cylindrical. , a point extending along an axis AX between the distal end of the drill bit 66 and the distal end of the shank 176 The drill bit tip 222 has end lengths 224a, 224b. 4a, 224b vary for each drill bit 66. In some configurations, the shank The larger the diameter of the distal end 180 of 176, the longer the tip lengths 224a, 224b. In many configurations, the penetration depth of the drill bit is determined by the distance 180 of the shank 176 from the desired media depth. The different tip lengths 224a and 224b are determined when the penetration depth is the same. The penetration created by the transducer assembly 136 when In one configuration, the signal versus depth may be different. The tip length 224a of the bit 66 is the same as the tip length 224b of the drill bit 66 shown in FIG. When each drill bit 66 is positioned relative to the drilling media, in the configuration of FIG. The measurement cannula 134 in this example is displaced more than the measurement cannula 134 shown in FIG. 17A. 17B, ​​the drill bit 66 is inserted through the distal end 180 of the shank 176. This is because the drilling must be performed over a longer distance to obtain an accurate value for the penetration depth. To do this, a measurement is added to the measured intubation 134 displacement value determined by the transducer signal. The offset value to be added or subtracted may be used by the controller 78. .

[0078] In the exemplary configuration, the sensor 201 detects the identification feature 177 of the drill bit 66. A separate signal is generated which causes the tip of a drill bit 66 connected to the handpiece 62 to The controller 78 receives the identification signal and the transducer assembly. 136 and measures the tip length 224a of the drill bit 66. , 224b, and the tip length 224a, 224b of the drill bit 66 and the measurement intubation 13 The output device 148 determines the penetration depth of the drill hole or the depth of the drill hole passage based on the displacement of the input pin 4. a displacement value relative to the connected drill bit 66, a displacement value of the measured cannula 145, and / or The controller 78 determines information including a penetration depth based on the misalignment value and the displacement value. Display.

[0079] In another configuration, the surgical handpiece system 60 may include an initial screw length or displacement value. By compensating for the difference, the appropriate screw length for bone fixation using a bone plate can be determined. The memory of the controller 78 is configured to store data corresponding to a number of the drill bits 66. It stores information relating to several bone plate thicknesses that are generally or exclusively related. When the controller 78 identifies the drill bit 66 from the identification signal from the sensor 201, the controller 78 Another signal indicates that a certain bone plate is associated with an associated drill bit 66. The controller 78 receives a transducer signal from the transducer assembly 136. Receive and couple drill bits 66 to the corresponding bone plate associated with the bone plate thickness and determines the screw length based on the displacement of the measuring intubation tube 134. length, bone plate thickness, type of bone plate, displacement of the measuring cannula 134, and / or bone A penetration depth value based on the plate thickness and the displacement of the measured cannula 134 can be displayed.

[0080] The predetermined puncture depth and puncture diameter in the treatment object allow the subsequent punctures to be formed. This allows for the placement of an appropriately sized screw or other fixation device that fits within the hole. Typically, the determined depth and diameter of the drill hole are output to an output device 14 which is viewed by the operator. 8. Such information is shown on the display screen and the appropriate size is fitted into the formed perforation. This will be used by the operator to determine the screw.

[0081] Several configurations have been discussed above. The illustrated configurations are not intended to be exclusive or to denote the present disclosure in any particular manner. The invention is not intended to be limited to the specific form and other specific configurations are contemplated. The terminology used is intended to be descriptive rather than limiting. Many modifications and variations are possible in light of the above teachings, and the present disclosure may be modified in various ways in accordance with the teachings of the present invention. The present invention may be implemented by other methods than the above.

[0082] The term "include, includes, including" means "comprise, It is further understood that the terms "companies, enterprises, and companies" and "companies" have the same meaning as the terms "companies, enterprises, and companies" and "companies and companies"; The terms "first," "second," "third," etc., are used for clarity. For non-limiting illustrative purposes, certain structural features and configurations provide clarity and consistency. It should also be understood that terms are used herein to distinguish between elements.

[0083] The present disclosure is intended to be defined in the independent claims, with particular features being set out in the dependent claims. The subject matter of a claim that is dependent on one independent claim is disclosed in relation to the other independent claims. It may be implemented as follows.

[0084] The disclosure also includes the following clauses, with specific features being disclosed in the subclause. These features The present invention may be specifically implemented as described in more detail above with reference to the above-mentioned configuration and drawings. stomach. <Terms>

[0085] [Article I] 1. A drill bit for use in a surgical drilling instrument, comprising: a shank extending along an axis between a proximal end and a distal end; a cutting tip portion adjacent the distal end of the shank; a sleeve disposed about at least a portion of the shank, the sleeve having a temperature of 120° C. or less; At least one of the sleeve or the shank is made of a material having a glass transition temperature. A thermal label disposed around a portion of the Equipped with The sleeve or the thermal label may include an optical element for identifying the configuration of the cutting tip portion. A drill bit comprising a target identification feature.

[0086] [Article II] The sleeve is sized to be placed over the shank of the drill bit. The drill bit of claim I, defining a recessed lumen.

[0087] [Article III] The optical identification feature comprises an array of optical marks circumferentially disposed about the shank. 2. The drill bit of claim 1, comprising:

[0088] [Article IV] The first optical mark of the array of optical marks may be differentiated by size, shape, angular distance, or a combination thereof. The drill bit according to claim III, which is different from the second optical mark in the optical mark row. Net.

[0089] [Article V] Between a first optical mark in the optical mark row and a second optical mark in the optical mark row The angular distance is the angular distance between the second optical mark and a third optical mark in the row of optical marks. 4. The drill bit according to claim III or IV,

[0090] [Article VI] Between a first optical mark in the optical mark row and a second optical mark in the optical mark row The angular distance is the angular distance between the second optical mark and a third optical mark in the row of optical marks. 4. A drill bit according to any one of clauses III-V, which differs from

[0091] [Article VII] The optical mark row is further defined as a first optical mark row, the optical identification feature being , disposed circumferentially around the shank and axially from the first optical mark row A method according to any one of clauses III-VI, further comprising: Drill bits included.

[0092] [Article VIII] Each of the first optical mark row and the second optical mark row includes the same number of optical marks. 4. A drill bit as described in clause VII.

[0093] [Article IX] At least one optical mark in the first row of optical marks is aligned parallel to the axis of the shank. in a direction that is angularly aligned with an optical mark of the second row of optical marks , VII or VIII.

[0094] [Clause X] At least one optical mark in the first row of optical marks is a mark in the second row of optical marks. The dots described in Articles VII-IX that are not angularly aligned with any of the optical marks Lil bit.

[0095] [Article XI] A drill bit configured to be coupled to a surgical handpiece and having an identification feature 1. A measurement module configured for use with a Housing and A measurement intubation tube made of a non-magnetic material, the drill bit being attached to the handpiece. configured to circumferentially surround the drill bit when coupled and having a sufficient distal position and a housing extending forward or rearward relative to the housing between a proximal position; a distal end adapted to be slidably mounted and positioned relative to a treatment object; Measurement intubation and a transducer signal based on a position of the distal end of the measurement tube relative to the housing; a transducer assembly for generating a signal; The measurement is performed when the drill bit is coupled to the handpiece and rotates about an axis. A signal is generated in response to the magnetic field or magnetic resistance of the identification feature of the drill bit via a fixed intubation. a sensor for detecting a temperature difference; A measurement module comprising:

[0096] [Article XII] A drill bit configured to be coupled to a surgical handpiece and having an identification feature 1. A measurement module configured for use with a Housing and a depth measurement extension movable relative to said housing; a transducer based on a position of the distal end of the depth measuring extension relative to the housing; a transducer assembly for generating a signal; The identification feature of the drill bit when the drill bit rotates about an axis. a sensor for generating an identification signal based on the A driver is provided based on receipt of the generated transducer signal and the generated identification signal. a controller configured to determine a penetration depth of the hole passage; A measurement module comprising:

[0097] [Article XIII] The performance characteristics include length, material, diameter, cross-sectional area, type, cutting efficiency, rake angle, and flute angle. , apex angle, and combinations thereof. Rule.

[0098] [Article XIV] Configured to be coupled to a surgical handpiece and for use with a drill bit A measurement module configured as follows: Housing and a depth measurement extension movable relative to said housing; a transducer based on a position of the distal end of the depth measuring extension relative to the housing; a transducer assembly for generating a signal; The generated transducer signal and the surgical handpiece are then used together. and determining a penetration depth of the drill passage based on receiving the performance characteristic of the drill bit. A controller having the above configuration; A measurement module comprising:

[0099] [Article XV] The performance characteristics include length, material, diameter, cross-sectional area, type, cutting efficiency, rake angle, and flute angle. , a point angle, and combinations thereof. Rule.

[0100] [Article XVI] A surgical handpiece system for use with a drill bit having an identification feature. hand, A drill bit is connected to the drill bit, and a torque is transmitted to the connected drill bit to A handpiece for rotating the lubricant around an axis; a measurement module coupled to the handpiece, Housing and a measurement intubation tube movable to a sufficiently distal and proximal position relative to said housing; a biasing member configured to bias the measurement cannula to the sufficient distal position; A measurement module comprising: a transducer signal based on a position of the distal end of the measurement tube relative to the housing; a transducer assembly for generating a signal; a sensor for generating an identification signal based on an identification feature of the coupled drill bit. When the measurement intubation is in the sufficiently distal position, the sensor detects the a sensor disposed within the housing at a location proximal to the proximal end; A surgical handpiece system comprising:

[0101] [Article XVII] The surgical handpiece system of claim XVI, wherein the sensor is an optical sensor.

[0102] [Article XVIII] The sensor is selected from the group consisting of a magnetic field sensor, a Hall effect sensor, and a magnetoresistive sensor. The surgical handpiece system of any one of clauses XVI and XVII,

[0103] [Article XIX] A drill bit configured to be coupled to a surgical handpiece and having an identification feature 1. A measurement module configured for use with a Housing and a measurement intubation device that can be moved to a sufficient distal and proximal position; a biasing member configured to bias the measurement cannula to the sufficient distal position; A transducer signal is generated based on the position of the distal end of the measurement tube relative to the housing. a transducer assembly for generating a signal; The drill bit is connected to the handpiece such that the drill bit has a shaft. generating an identification signal based on the identification feature of the drill bit when rotated about a center. a sensor disposed within the housing for measuring the sufficient distal intubation, a sensor configured to be proximal to a proximal end of the measurement tube when in position; A surgical handpiece system comprising:

[0104] [Article XX] A surgical handpiece system for use with a drill bit having an identification feature. hand, a handpiece for coupling to the drill bit and transmitting torque to the drill bit; a handpiece configured to rotate the drill bit about an axis. And, a measurement module coupled to the handpiece, Housing and When the drill bit is connected to the handpiece, the drill bit is rotated in a circumferential direction. A measurement intubation tube configured to at least partially surround the The housing is slidably mounted to the housing so as to extend forward or rearward relative to the housing between the forward and rearward positions. The device has a distal end that is movably mounted and adapted to be positioned relative to the object to be treated. , measurement intubation, A measurement module comprising: A transducer signal is generated based on the position of the distal end of the measurement tube relative to the housing. a transducer assembly for generating a signal; When the drill bit is coupled to the handpiece and rotates about the axis, a sensor for detecting an identifying feature of the drill bit through the measurement tube; A surgical handpiece system comprising:

[0105] [Article XXI] The sensor is selected from the group consisting of a magnetic field sensor, a Hall effect sensor, and a magnetoresistive sensor. The surgical handpiece system of claim XX,

[0106] [Article XXII] A surgical drill device having a magnetoresistive sensor for generating a signal in response to variations in a magnetic field. The drill bit used is a shank extending along an axis between a proximal end and a distal end, the shank being and the shank is configured to rotate about a non-circular axis on a plane perpendicular to the axis. The molded article has an outer surface that defines one or more recesses that provide a shaped cross-section, whereby the molded article has an outer surface and The radial distance between the shaft varies about the shaft, and the shank is During rotation, a magnetic field is generated about the axis in response to the variation of the radial distance of the outer surface relative to the axis. a shank configured to provide a field variation; and a cutting tip portion adjacent the distal end of the shank; Equipped with The one or more recesses in the outer surface of the shank are recessed into one or more of the cutting tip portions. A drill bit comprising an identification feature for identifying a plurality of performance characteristics.

[0107] [Article XXIII] a connecting portion proximal to the shank and the cutting tip portion, the connecting portion , engaging the surgical drill instrument to couple the drill bit to the surgical drill instrument. The drill bit of clause XXII, configured as follows:

[0108] [Article XXIV] The performance characteristics of the cutting tip portion include length, material, diameter, cross-sectional area, type, rake angle, Clause XXIIX or selected from the group consisting of flute angles, point angles, and combinations thereof. XIII is a drill bit.

[0109] [Article XXV] The outer surface of the shank has the one or more recesses circumferentially disposed about the shank. XXII-XXIV, further defining the outer recesses arranged in the Drill bits included.

[0110] [Article XXVI] At least one recess in the row of recesses has a depth, an arc length, or a combination thereof. , which is different from at least one other recess in the row of recesses.

[0111] [Article XXVII] The angular distance between a first recess in the row of recesses and a second recess in the row of recesses is The angular distance between the second recess and the third recess is the same as that described in Article XXV or XXVI. Drill bits.

[0112] [Article XXVIII] The angular distance between a first recess in the row of recesses and a second recess in the row of recesses is Any of clauses XXV-XXVII, wherein the angular distance between the second recess and the third recess is different. 1. The drill bit described in item 1.

[0113] [Article XXIX] The size of one recess in the recess row is larger than the size of one or more other recesses in the recess row. 2. A drill bit according to any one of clauses XXV-XXVIII,

[0114] [Clause XXX] The row of recesses is further defined as a first row of recesses, the outer surface extending about the shank. a second row of recesses arranged circumferentially and axially spaced from the first row of recesses; The drill bit of any one of clauses XXV-XXIX, further defining a row.

[0115] [Article XXXI] Clause XXX, wherein the first row of recesses and the second row of recesses each define an equal number of recesses. The drill bit according to claim 1 .

[0116] [Article XXXII] At least one recess in the first row of recesses is aligned in a direction parallel to the axis of the shank. and is angularly aligned with a recess in the second row of recesses. 13. A drill bit as described in any one of claims 1 to 12.

[0117] [Article XXXIII] At least one recess in the first row of recesses is aligned in a direction parallel to the axis of the shank. Clause X is not angularly aligned with any of the recesses in the second row of recesses. A drill bit as described in XX-XXXII.

[0118] [Article XXXIV] 1. A method of making a drill bit assembly having a magnetic identification feature, comprising: Providing a drill bit having a shank and a cutting tip portion, a step in which the drill bit is disposed along the axis; disposing one or more magnets adjacent to the shank of the drill bit; , Casting a non-magnetic material around at least a portion of the shank and the one or more magnets. Molding and fixing the one or more magnets to the shank of the drill bit. and, A method comprising:

[0119] [Article XXXV] 1. A surgical handpiece system comprising: A handpiece, The handpiece is connected to the handpiece, and receives torque from the handpiece to rotate about an axis. 1. A drill bit configured to rotate, a shank extending along the axis between a proximal end and a distal end, the shank comprising , configured to rotate about the axis, the shank having one or more recesses. a radial distance between said outer surface and said axis varies about said axis; a shank that provides a non-circular cross section on a plane perpendicular to said axis such that a cutting tip portion adjacent the distal end of the shank; Equipped with The one or more recesses in the outer surface of the shank are recessed into one or more of the cutting tip portions. configuring an identification feature portion for identifying a plurality of performance features; A drill bit and A measurement module configured to be coupled to the handpiece, a housing configured to be coupled to the handpiece; Extends forwardly or rearwardly relative to the housing between a sufficient distal position and a sufficient proximal position. A measurement intubation tube is slidably attached to the housing so as to move in a direction perpendicular to the treatment object. a measurement intubation tube having a distal end adapted to be placed in A measurement module comprising: Equipped with One of the measurement module and the handpiece includes a sensor, the sensor To identify the configuration of the cutting tip portion of the drill bit, during rotation of the shank resulting from the variation of the radial distance of the outer surface relative to the axis. A surgical handpiece system that generates an identification signal in response to variations in an applied magnetic field.

[0120] [Article XXXVI] The measurement intubation tube is made of a non-magnetic material, the handpiece has a body, and the sensor The measurement intubation is connected to the sensor in a direction perpendicular to the axis at the proximal position. and the measurement intubation is located between the identification feature and at the sufficiently distal position. so as not to be located between the sensor and the identifying feature in a direction perpendicular to the axis. and a surgical handpiece as described in clause XXXV, wherein the surgical handpiece is disposed within the body of the handpiece. system.

[0121] [Article XXXVII] Any of clauses XXXV-XXXVI, wherein the non-magnetic material is made of a polymeric material. 10. A surgical handpiece system according to any one of claims 1 to 9.

[0122] [Article XXXVIII] receiving the identification signal; and selecting the connected drill bit corresponding to the received identification signal. Any of clauses XXXV-XXXVII, further comprising a controller configured to identify 10. A surgical handpiece system according to any one of claims 1 to 9.

[0123] [Article XXXIX] A transducer signal is generated based on the position of the distal end of the measurement tube relative to the housing. The device according to claim XXXVIII further comprises a transducer assembly for generating a signal. The surgical handpiece system.

[0124] [Clause XL] The controller receives the generated transducer signal and converts the received transducer signal into a A relative torque transmitted to the drill bit based on the inducer signal and the identification signal. The surgical handpiece system of claim XXXIX, configured to control the size Hmm.

[0125] [Article XXI] The controller is configured as a first controller, and the surgical handpiece system is configured as a second controller. The first controller is disposed within the measurement module, and the second controller is disposed within the measurement module. A controller is disposed within the handpiece, the handpiece being adapted to generate torque. a motor, the second controller being adapted to receive the transducer signal and the identification signal. and configured to control the relative magnitude of the torque generated by the motor based on 3. A surgical handpiece system as described in any one of clauses XXXIX-XL.

[0126] [Article XLII] The measurement module further includes a guide bush that circumferentially surrounds the measurement cannula, The guide bushing defines a window, and the transducer assembly passes through the window. The surgical handpiece according to any one of clauses XXXIX-XLI, ndpiece system.

[0127] [Article XLIII] The controller includes a microprocessor having a memory unit, the memory unit The list includes a list of known identification signals, each one of the known identification signals in the list being corresponding to one known drill bit, and the microprocessor by comparing the connected drill bit to the list of known identification signals. XXXVIII-XLII, other than as described in any one of the clauses XXXVIII-XLII, Dental handpiece system.

[0128] [Article XLIV] The identification signal may be characterized in terms of magnitude, polarity, phase offset, intensity, or a combination thereof. A surgical handpiece according to any one of clauses XXXVIII-XLIII, which are different from each other. system.

[0129] [Article XLV] The measuring module is integral with the handpiece. The surgical handpiece system.

[0130] [Article XLVI] The measurement module is removable from the handpiece. 1. A surgical handpiece system as described in claim 1.

[0131] [Article XLVII] To determine the penetration depth of a drill passage for a drill bit having a unique identification feature 1. A surgical handpiece system configured to: A handpiece, a drill bit extending axially from a proximal end to a distal end, the drill bit being coupled to the handpiece; and configured to receive torque from the handpiece and rotate about an axis; a drill bit having a shank with a different feature; A measurement module configured to be coupled to the handpiece, a housing configured to be coupled to the handpiece; Extends forwardly or rearwardly relative to the housing between a sufficient distal position and a sufficient proximal position. a depth measuring extension slidably mounted on said housing so as to move said treatment object; a depth measurement extension having a distal end adapted to be disposed against the a measurement module comprising: a transducer based on a position of the distal end of the depth measuring extension relative to the housing; a transducer assembly for generating a signal; The identification characteristic of the drill bit when the drill bit is coupled to the handpiece. a sensor for generating an identification signal based on the feature; receiving the transducer signal and the identification signal; determining the penetration depth of the drilling passage based on receiving the generated identification signal and the generated identification signal. a controller configured to: A surgical handpiece system comprising:

[0132] [Article XLVIII] The transducer signal is a direct measurement of the depth measuring extension relative to an initial displacement position during use. The surgical handpiece system of claim VLVII, which is generated in response to a linear displacement.

[0133] [Article XLIX] The drill bit extends proximally along the axis from the distal end of the drill bit. a cutting tip portion having a drill bit tip adapted to receive said drill bit; a tip end of the bit tapered toward the shank and away from the axis; The drill bit tip has a tip length along the axis between the distal end and the shank. The surgical handpiece according to any one of clauses XLVII or XLVIII, system.

[0134] [Clause L] The shank of the drill bit is a proximal end of the drill bit. a drill bit extending proximally along the axis from a distal end of the drill bit to a distal end of the drill bit; The shank has a continuous diameter along at least a portion of the length of the shank extending from the tip. The surgical handpiece system of clause XL, comprising a cylindrical body.

[0135] [Clause LI] The identification signal corresponds to the point length of the drill bit and the penetration depth corresponds to the The surgical handpiece according to any one of clauses XLIX-L, based on the tip length of the drill bit. ndpiece system.

[0136] [Clause LII] The controller includes a microprocessor having a memory unit, the memory unit The system includes a list of known identification signals, each one of the known identification signals in the list being a known each corresponding to a known drill bit having a known tip length, and the microprocessor When the drill bit is connected to the handpiece, the received identification signal is transmitted to the handpiece. by comparing the drill bit and the tip length to the list of known identification signals. The surgical hand according to any one of clauses XLIX-LI, Peace system.

[0137] [Article LIII] The depth measuring extension is adapted to measure the depth of the drill bit when the drill bit is coupled to the handpiece. Clause XLVI, which comprises a measurement intubation configured to circumferentially surround the lilbit. The surgical handpiece system according to any one of claims I-LII.

[0138] [Clause LIV] Clause XLVII, wherein the sensor is disposed within the housing of the measurement module. -LIII. A surgical handpiece system according to any one of claims 1 to 5.

[0139] [Clause LV] The sensor is disposed within the body of the handpiece. 13. A surgical handpiece system according to claim 12,

[0140] [Article VI] The sensors include optical sensors, magnetic field sensors, Hall effect sensors, and magnetoresistive sensors. The surgical handpiece of any one of clauses XLVII-LV, selected from the group consisting of system.

[0141] [Article LVII] The transducer assembly includes a potentiometer, an optical sensor, and a linear variable differential Clause XLVII-L, comprising at least one sensor selected from the group consisting of a transformer. VI. A surgical handpiece system as described in any one of claims 1 to 6.

[0142] [Article LVIII] Clause XLVII, wherein the controller is disposed within the housing of the measurement module. - A surgical handpiece system as described in any one of LVI.

[0143] [Article LVX] The measuring module is integral with the handpiece, any of the clauses XLVII-LVIII 10. A surgical handpiece system according to any one of claims 1 to 9.

[0144] [Article LX] The measurement module is detachable from the handpiece. IX. A surgical handpiece system as described in claim IX.

[0145] [Article LXI] 1. A method for determining a penetration depth of a drilling passage during a surgical drilling, comprising: Providing a surgical handpiece system having a measurement module with a depth measurement extension and determining a displacement of said depth measuring extension during a surgical drilling operation; The drill bit is identified by a sensor located within the surgical handpiece system. Identifying a distinct feature; determining a penetration depth of the drilling passage based on the displacement and receipt of the identification feature. P and A method comprising:

Claims

1. 1. A drill bit for use in a surgical drilling instrument, comprising: a shank extending along an axis between a proximal end and a distal end; a cutting tip portion adjacent the distal end of the shank; Identification features disposed about the shank to identify the configuration of the cutting tip portion. a magnetic identification feature configured to generate a magnetic field; The magnetic material is adapted to be at least partially demagnetized when heated to a temperature of 80° C. or higher. an identification feature portion configured as A drill bit.

2. The shank further comprises a sleeve disposed about at least a portion of the shank, the sleeve The drill bit of claim 1 , wherein the first end is made of a non-magnetic material.

3. The sleeve includes the identification feature and the magnetic material is dispersed within the non-magnetic material. The drill bit of claim 2 .

4. 4. The drill of claim 3, wherein the magnetic material is uniformly dispersed within the non-magnetic material. bit.

5. The magnetic material is composed of a first magnet and a second magnet, and the first and second magnets are 5. The drill bit according to claim 2, wherein said sleeve is connected to said drill bit.

6. The magnetic material comprises an array of magnets circumferentially disposed about the shank. The drill bit according to any one of claims 2 to 5.

7. At least one magnet in the magnet array may be oriented in a magnetic field by changing its size, strength, polarity, angular distance, or a combination thereof.

7. The drill of claim 6, wherein the magnet is different in alignment from at least one other magnet in the magnet array. Rubit.

8. The angular distance between the first magnet of the magnet array and the second magnet of the magnet array is 8. A drill according to claim 6 or 7, wherein the angular distance between the second magnet and the third magnet is the same. bit.

9. The angular distance between the first magnet of the magnet array and the second magnet of the magnet array is 8. The drill bit of claim 6 or 7, wherein the angular distance between the second magnet and the third magnet is different. to.

10. a size of a first magnet of the magnet array is larger than a size of a second magnet of the magnet array; A drill bit according to any one of claims 6 to 9.

11. a strength of a first magnet of the magnet array is greater than a strength of a second magnet of the magnet array; Item 6-10. The drill bit according to any one of items 6-10.

12. The magnet array is further defined as a first magnet array, the magnetic material being disposed around a periphery of the shank. a second magnet array disposed circumferentially around the first magnet array and spaced axially from the first magnet array; A drill bit according to any one of claims 6 to 11, comprising an array of magnets.

13. 13. The method of claim 12, wherein the first and second magnet rows each include an equal number of magnets. Drill bit as described.

14. At least one magnet of the first magnet array is oriented in a direction parallel to the axis of the shank. 12 or 13, wherein the first magnet is disposed in angular alignment with a magnet of the second magnet row.

14. The drill bit according to claim 13.

15. At least one magnet of the first magnet array is oriented in a direction parallel to the axis of the shank. and not disposed in angular alignment with any of the magnets in the second magnet row. A drill bit according to any one of claims 12 to 14.

16. 1. A drill bit for use in a surgical drilling instrument, comprising: a shank extending along an axis between a proximal end and a distal end; a cutting tip portion adjacent the distal end of the shank; a sleeve disposed about at least a portion of the shank, the sleeve comprising The sleeve is made of a non-magnetic material having a glass transition temperature of 120° C. or less, The cutting tip portion has an identification feature for identifying a configuration thereof, the identification feature being made of a magnetic material. A sleeve comprising a material; A drill bit.

17. 17. The drill bit of claim 16, wherein the magnetic material is dispersed within the non-magnetic material. to.

18. 18. The method according to claim 16, wherein the magnetic material is uniformly dispersed within the non-magnetic material. Drill bits included.

19. The magnetic material comprises an array of magnets circumferentially distributed around the shank. The drill bit of claim 16.

20. At least one magnet in the magnet array may be oriented in a magnetic field by changing its size, strength, polarity, angular distance, or a combination thereof.

20. The drive of claim 19, wherein the magnet is different in combination from at least one other magnet in the magnet array. Lil bit.

21. The angular distance between the first magnet of the magnet array and the second magnet of the magnet array is 21. The drive of claim 19 or 20, wherein the angular distance between the second magnet and the third magnet is the same. Lil bit.

22. The angular distance between the first magnet of the magnet array and the second magnet of the magnet array is 22. The method according to claim 19, wherein the angular distance between the second magnet and the third magnet is different. Drill bit as described.

23. a size of a first magnet of the magnet array is larger than a size of a second magnet of the magnet array; A drill bit according to any one of claims 19 to 22.

24. a strength of a first magnet of the magnet array is greater than a strength of a second magnet of the magnet array; Item 24. The drill bit according to any one of Items 19-23.

25. The magnet array is further defined as a first magnet array, the magnetic material being disposed around a periphery of the shank. a second magnet array disposed circumferentially around the first magnet array and spaced axially from the first magnet array; A drill bit according to any one of claims 19 to 24, comprising an array of magnets.

26. 26. The method of claim 25, wherein the first and second magnet rows each include an equal number of magnets. Drill bit as described.

27. At least one magnet of the first magnet array is oriented in a direction parallel to the axis of the shank.

26. The magnet of claim 25, wherein the first magnet is disposed in angular alignment with a magnet of the second magnet array. Or the drill bit according to 26.

28. At least one magnet of the first magnet array is oriented in a direction parallel to the axis of the shank. and not disposed in angular alignment with any of the magnets in the second magnet row. A drill bit according to any one of claims 25 to 27.

29. The magnetic material of the sleeve is at least partially A drill bit according to any one of claims 16-28, which is demagnetized.

30. The sleeve is sized to be placed over the shank of the drill bit. The drill bit of any one of claims 16-29, defining a recessed lumen.

31. 1. A drill bit assembly for use in a surgical drilling instrument, comprising: a shank extending along an axis between a proximal end and a distal end; a cutting tip portion adjacent the distal end of the shank; a sleeve disposed about at least a portion of the shank, the sleeve being made of a non-magnetic material; A sleeve comprising: Equipped with The sleeve includes an identification feature for identifying the configuration of the cutting tip portion. The identification feature is constructed from a magnetic material, the magnetic material being dispersed within the non-magnetic material. , drill bit assembly.

32. The sleeve is adapted to be disposed over the shank of the drill bit assembly. The drill bit assembly of claim 31 , defining a lumen dimensioned to

33. 33. The method according to claim 31 or 32, wherein the magnetic material is uniformly dispersed within the non-magnetic material. Drill bit assembly.

34. The magnetic material is at least partially demagnetized when heated to a temperature of 80° C. or higher. Item 34. A drill bit assembly according to any one of items 31-33.

35. Any one of claims 31 to 34, wherein the magnetic material is composed of solid particles or flakes.

2. The drill bit assembly according to claim 1 .

36. The shape of the magnetic field generated by the sleeve is asymmetric with respect to the axis of the shank. The drill bit assembly of any one of claims 31 to 35, wherein

37. The shape of the magnetic field generated by the sleeve is asymmetric along the axis of the shank. The drill bit assembly according to any one of claims 31 to 35, wherein

38. The sleeve has a first quadrant, a second quadrant, a third quadrant, and a and a fourth quadrant, the magnetic field generated by the first quadrant having a magnitude, strength , polarity, or combinations thereof, in the second quadrant, the third quadrant, and / or is different from the magnetic field generated by the fourth quadrant. The drill bit according to claim 1 .

39. Surgical hand for use with drill bits having identification features made of magnetic material A dopiece system, A drill bit is connected to the drill bit, and a torque is transmitted to the drill bit to rotate the drill bit. a handpiece for rotating about a center; A measurement module configured to be coupled to the handpiece, Housing and A measurement intubation tube made of a non-magnetic material, the drill bit being attached to the handpiece. a drill bit having a diameter of about 1 mm and a diameter of about 10 mm; The housing is adapted to extend forward or rearward relative to the housing between a distal position and a proximal position. A distal end is slidably attached to the housing and adapted to be positioned relative to the treatment object. a measurement intubation having a distal end; A measurement module comprising: a transducer signal based on a position of the distal end of the measurement tube relative to the housing; a transducer assembly for generating a signal; When the drill bit is coupled to the handpiece and rotates about the axis, The drill bit is identified according to the magnetic field or magnetic resistance of the identification feature portion through the measurement intubation. A sensor for generating a signal; A surgical handpiece system comprising:

40. receiving the identification signal; and selecting the connected drill bit corresponding to the received identification signal.

40. The surgical handpiece of claim 39, further comprising a controller configured to identify system.

41. The controller receives the generated transducer signal and controls the received transducer. and determining a relative torque transmitted to the drill bit based on the transducer signal and the identification signal.

41. The surgical handpiece system of claim 40 configured to control magnitude.

42. The controller includes a microprocessor having a memory unit, the memory unit The system includes a list of known identification signals, each one of the known identification signals in the list being corresponding to one known drill bit, and the microprocessor and identifying the connected drill bit by comparing the identified signal to the list of known identification signals. A surgical handpiece according to any one of claims 39 to 41, adapted for identification. system.

43. The identification signals may differ from one another with respect to magnitude, polarity, angular distance, intensity, or a combination thereof.

43. The surgical handpiece system of any one of claims 39-42, comprising:

44. The sensor is arranged in the housing of the measurement module, claim 39-4 3. A surgical handpiece system according to any one of claims 1 to 3.

45. The measurement module further includes a guide bush that circumferentially surrounds the measurement cannula, The guide bushing defines a window, and the transducer assembly passes through the window. The surgical handpiece according to any one of claims 39 to 44, system.

46. Any of claims 39-45, wherein the sensor is disposed within the body of the handpiece.

1. A surgical handpiece system as described in claim 1.

47. The sensor detects the forward movement of the measurement tube in a direction perpendicular to the axis at the proximal position. and the measurement intubation is located between the sensor and the identification feature and at the sufficient distal end. At a position between the sensor and the identification feature in a direction perpendicular to the axis, 47. The method of claim 39, wherein the handpiece is disposed within the body of the handpiece so as not to A surgical handpiece system as described in claim 1.

48. The non-magnetic material according to any one of claims 39 to 47, wherein the non-magnetic material is a polymer material. Surgical handpiece system.

49. 49. The method of claim 41, wherein the controller is located within the measurement module. A surgical handpiece system as described in claim 1.

50. The controller is further defined as a first controller, and the surgical handpiece system is , a second controller, the first controller being disposed within the measurement module, The second controller is disposed within the handpiece, and the handpiece generates a torque. a motor for rotating the transducer signal and the identification signal; and controlling the relative magnitude of the torque generated by the motor based on the signal.

50. A surgical handpiece system according to any one of claims 40 to 49, comprising:

51. 50. Any of claims 39-49, wherein the measurement module is integral with the handpiece.

1. A surgical handpiece system according to claim 1.

52. 50. The method of claim 39, wherein the measurement module is removable from the handpiece. A surgical handpiece system according to any one of the preceding claims.

53. 1. A surgical handpiece system for determining a penetration depth of a drilling passage, comprising: A surgical handpiece system configured for use with a drill bit having a In the a handpiece for coupling to the drill bit and transmitting torque to the drill bit; A handpiece having a body; a measurement module coupled to the handpiece body, a housing connected to the handpiece body; a forward or rearward movement along an axis relative to the housing between a sufficiently distal and proximal position; a depth measurement extension slidably mounted on said housing so as to extend toward said housing; a transducer based on a position of the distal end of the depth measuring extension relative to the housing; a transducer assembly for generating a transducer signal; A measurement module comprising: The identification of the drill bit when the drill bit is coupled to the handpiece body. a sensor for generating an identification signal based on the distinct feature; receiving the transducer signal and the identification signal; determining the penetration depth of the drilling path based on receiving the generated identification signal and the generated identification signal. a controller configured to: A surgical handpiece system comprising:

54. The transducer signal is a function of the depth measuring extension relative to an initial displacement position during use.

54. The surgical handpiece system of claim 53 responsive to linear displacement.

55. The penetration depth is determined by the change in the transducer signal over time.

55. The surgical handpiece system of claim 54, wherein the acceleration is based on

56. The measurement module includes a housing, and the depth measurement extension is adapted to is adapted to circumferentially surround a portion of the drill bit when connected to the handpiece body. The surgical device according to any one of claims 53 to 55, comprising a measurement intubation device configured as follows: Handpiece system.

57. 57. The method according to claim 53, wherein the sensor is arranged in the measurement module. A surgical handpiece system as described in claim 1.

58. Any one of claims 53-56, wherein the sensor is disposed within the handpiece body.

13. A surgical handpiece system as described above.

59. The sensors include optical sensors, magnetic field sensors, Hall effect sensors, and magnetoresistive sensors. The surgical handpiece system according to any one of claims 53 to 58, selected from the group consisting of Stem.

60. The transducer assembly includes a potentiometer, an optical sensor, and a linear variable differential Any of claims 53-59, comprising at least one selected from the group consisting of: The surgical handpiece system described above.

61. The sensor detects the forward movement of the measurement tube in a direction perpendicular to the axis at the proximal position. and the measurement intubation is located between the sensor and the identification feature and at the sufficient distal end. At a position between the sensor and the identification feature in a direction perpendicular to the axis, 57. The surgical handpiece of claim 56, wherein the surgical handpiece is disposed within the handpiece body so as not to system.

62. Any one of claims 53-61, wherein the controller is located within the measurement module. A surgical handpiece system as described in claim 1.

63. The controller is further defined as a first controller, and the handpiece is a second controller connected to the base body, the first controller controlling the measurement module the handpiece further comprises a motor, and the second controller is disposed on the A relative torque generated by the motor based on the inducer signal and the identification signal. The surgical device of any one of claims 53 to 62, configured to control the overall size of the surgical instrument. Handpiece system.

64. Any of claims 53-61, wherein the measurement module is integral with the handpiece.

1. A surgical handpiece system according to claim 1.

65. 64. The method of claim 53, wherein the measurement module is detachable from the handpiece. A surgical handpiece system according to any one of the preceding claims.

66. The controller includes a microprocessor having a memory unit, the memory unit The system includes a list of known identification signals, each one of the known identification signals in the list being corresponding to one known drill bit, and the microprocessor determines whether the drill bit is When coupled to the handpiece, the received identification signal is compared to the list of known identification signals.

54. The method of claim 53, further comprising: -65. A surgical handpiece system according to any one of claims 1 to 4.

67. The identification signal corresponds to one or more performance characteristics of each one of the known drill bits. The performance characteristics include length, material, diameter, cross-sectional area, type, cutting efficiency, rake angle, flute angle , a point angle, and combinations thereof. system.

68. The method further includes a first drill bit and a second drill bit, the first drill bit comprising: The first drill bit differs from the second drill bit in at least one performance characteristic. The drill bit includes a first identification feature and the second drill bit includes a second identification feature. and wherein the first identification feature is different from the second identification feature.

13. A surgical handpiece system according to claim 12.

69. 1. A surgical drill bit system comprising: A first drill bit, a first shank extending along a first axis between a proximal end and a distal end; a first cutting tip portion adjacent the distal end of the first shank, the first a first cutting tip portion having a cutting configuration of a first sleeve at least partially surrounding the first shank, A first sleeve includes a first configuration of magnetic material disposed about the first shank. the first configuration of magnetic material identifies the first cutting configuration of the first cutting tip portion. a first sleeve having first programming for A first drill bit comprising: A second drill bit, a second shank extending along a second axis between a proximal end and a distal end; a second cutting tip portion adjacent the distal end of the second shank, a second cutting tip portion having a second cutting configuration different from the first cutting configuration; a second sleeve at least partially surrounding the second shank, a second sleeve having the first configuration of magnetic material disposed about the second shank; a second composition of magnetic material, the second composition of magnetic material being connected to the second cutting tip; a second programming different from the first programming for identifying the second cutting configuration of the tip portion; a second sleeve having programming; a second drill bit comprising: A surgical drill bit system comprising:

70. The first sleeve and the second sleeve each have a glass transition temperature of 120° C. or less.

70. The surgical drill bit system of claim 69, constructed from a non-magnetic material having

71. The first sleeve and the second sleeve are each made of a non-magnetic material.

71. The surgical drill bit system of claim 69 or 70.

72. The magnetic material of the first and second configurations is preferably a non-magnetic material of both the first and second sleeves.

72. The surgical drill bit system of claim 71, wherein the porous material is dispersed within the porous material.

73. The magnetic material of the first and second configurations is preferably a non-magnetic material of both the first and second sleeves.

73. The surgical drill bit system of claim 71 or 72, wherein the pores are uniformly dispersed within the porous material. Tem.

74. The first configuration of magnetic material comprises a first shank having a first axially extending portion circumferentially disposed about the first shank. a magnet array, and a magnet core arranged circumferentially around the first shank and extending from the first magnet array; and a second magnet row spaced apart from the first magnet row in the axial direction.

13. The surgical drill bit system according to claim 12,

75. The first programming of the magnetic material in the first configuration emits a first magnetic field; The second programming of the magnetic material in a second configuration includes applying a second magnetic field different from the first magnetic field.

75. The surgical drill bit system of any one of claims 70-74, which emits a field.

76. The first magnetic field is substantially equal in strength, polarity, or a combination thereof to the second magnetic field.

76. The surgical drill bit system of any one of claims 70-75, wherein:

77. The magnetic materials of the first and second components have at least 77. The surgical drill bit system of claim 70, wherein the drill bit is partially demagnetized. Tem.

78. The first sleeve is disposed over the first shank of the first drill bit.

71. The surgical drill bit system of claim 70, further comprising a lumen dimensioned to receive the Tem.

79. The first cutting configuration may include a length, a material, a diameter, a cross-sectional area, a type, a cutting efficiency, a rake angle, a full At least one performance characteristic selected from the group consisting of edge angle, tip angle, and combinations thereof.

79. The method according to claim 70, further comprising: Drill bit system.

80. 1. A method of programming a surgical drill bit system, comprising: Providing a first drill bit and a second drill bit, the first the drill bit differs from the second drill bit in at least one performance characteristic; The first drill bit has a first sleeve having a first configuration of magnetic material, A second drill bit includes a magnetic material of a second configuration identical to the magnetic material of the first configuration. a second sleeve having a second groove; A first magnetic programming sequence programs the magnetic material in the first configuration. and such that the magnetic material of the second configuration emits a different magnetic field than the magnetic material of the first configuration. a second magnetic programming sequence different from the first magnetic programming sequence; programming the magnetic material in the second configuration by a A method comprising:

81. The first magnetic programming sequence includes pulse frequency, phase offset, magnetic field strength, relative rotational speed of the sleeve, polarity, and combinations thereof. In at least one programming parameter, the second programming sequence The method of claim 80, wherein the

82. During at least a portion of the step of programming the magnetic material of the first configuration, 82. The method of claim 80 or 81, further comprising rotating the first sleeve. 。

83. To determine the appropriate screw length for bone fixation with bone plates that compensate for the initial displacement.

1. A surgical handpiece system comprising: A handpiece, The handpiece is connected to the handpiece, receives torque from the handpiece, and rotates around an axis. a drill bit configured to rotate, the drill bit including an identification feature; A measurement module comprising: a housing configured to be coupled to the handpiece; Slidably movable in the housing so as to extend forward or rearward relative to the housing a depth measuring extension attached thereto adapted to be positioned relative to the treatment object; a depth measurement extension having a distal end extending from the distal end of the depth measurement extension; configured to generate an identification signal in response to the identification feature of the drill bit. A sensor; A measurement module comprising: receiving the identification signal from the sensor; and determining whether or not the bone is fixed based on the identification signal from the sensor. a controller configured to determine the appropriate screw length for A surgical handpiece system comprising:

84. a transducer based on a position of the distal end of the depth measuring extension relative to the housing; The controller further includes a transducer assembly for generating a signal. receiving the identification signal from the transducer assembly; determining the appropriate screw length for bone fixation based on the transducer signals from the 84. The surgical handpiece system of claim 83 configured to:

85. 85. The method of claim 83 or 84, wherein the measurement module is integral with the handpiece. Surgical handpiece system.

86. 84. The method of claim 83, wherein the measurement module is removable from the handpiece. A surgical handpiece system as described in claim 1.

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