Calibration and adjustment determination of surgical handpiece system

Abstract

To provide a system for calibrating a surgical handpiece system capable of determining a depth of a drill to an orthopedic implant set.SOLUTION: A system comprises a surgical handpiece system and a calibration fixture. The surgical handpiece system comprises a depth measurement extension part, and is configured to determine a thickness of bone when a drill bit 66 is attached and used to drill through the bone. The calibration fixture is configured to engage with the depth measurement extension part of the surgical handpiece system to determine an adjustment value of an orthopedic implant set. The calibration fixture comprises a housing for defining a receptacle configured to receive a surgery screw of the orthopedic implant set. The housing has a first end configured to approach a distal surface of the surgical handpiece system to axially fix the housing / body of the calibration fixture relative to the surgical handpiece system.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] [Related Applications] This patent application is a continuation of U.S. Provisional Patent Application No. 62 / 754,94, filed November 2, 2018. No. 4 and U.S. Provisional Patent Application No. 62 / 901,878, filed September 18, 2019. Priority and all benefits are claimed, and these disclosures are incorporated by reference. All such provisions are hereby incorporated in their entirety. [Background technology]

[0002] In conventional medical and surgical procedures, a surgical instrument allows the surgeon to access and manipulate the surgical site. Surgical tools and instruments are used daily. Non-limiting examples include hand-held drills. Such rotating instruments are commonly used to treat a variety of musculoskeletal conditions, including trauma, sports injuries, degenerative diseases, and the like. They are utilized in connection with orthopedic procedures to address arthritic disorders, joint reconstruction, etc. In procedures where drills or similar surgical instruments are used, actuators (e.g., electric motors) A releasably attachable drill bit is provided using a rotational torque selectively generated by the or other surgical attachments at various speeds.

[0003] The surgical handpiece assembly drills into tissue against which the drill bit is pressed. One example of a surgical procedure that may be required is a trauma procedure to repair a fractured bone. This type of procedure uses a long, thin rod, also called an intramedullary nail, to connect the fractured areas of the bone. One or more holes are drilled into the bone to hold the nail in place. These holes The screw is positioned so that it is aligned with a complementary hole in the nail. The screws are inserted into the aligned bone holes and the nail hole. Hold it in place.

[0004] In another procedure, an implant known as a plate is fixed to the exterior of the fractured area of ​​the bone. The screws secure the plate to the individual sections of the bone. The plate is then inserted into the bone, where it is inserted into the bone. First, holes must be drilled to allow the material to pass through.

[0005] As part of the procedure used to drill a screw-receiving hole into bone, With this information, the surgeon can determine the depth at which the scaffold will fit within the drill hole. If the screw is too short, you can select the screw size. Liu is unable to securely hold the intramedullary nail into which the screw is inserted in place. If the screw is too long, it may protrude too far out of the bone. If the screw protrudes too far out of the bone, the exposed end of the screw may penetrate the surrounding tissue. If this situation occurs, the tissue rubbed by the screw may have adverse effects. It will be affected.

[0006] Therefore, an essential part of many bone formation procedures is the measurement of hole depth. Currently, this measurement is performed using This is often done with a depth gauge separate from the drill. This requires that the depth gauge be inserted into the hole after the nozzle has been removed from the hole. Based on tactile feedback, the surgeon determines that only the distal end of the gauge extends to the distal opening of the hole. Once these procedures are completed, the surgeon will place the gauge A reading is taken to determine the hole depth. Summary of the Invention [Problem to be solved by the invention]

[0007] It is desirable to improve these devices and methods. [Means for solving the problem]

[0008] The present disclosure generally relates to a method for determining drill depth for an orthopedic implant set. The present invention relates to a system for calibrating a surgical handpiece system. A system is presented that includes a surgical handpiece system, the surgical handpiece system comprising: a first housing and a depth measuring extension movably connected to the first housing; A displacement sensor assembly is coupled to the first housing and adapted to detect a displacement of the depth measuring extension. The calibration fixture is configured to generate a signal in response to a measurement of the orthopedic implant set. To determine the adjustment value, a depth measuring extension of a surgical handpiece system is attached to the The calibration fixture is configured to receive the surgical screws of the orthopedic implant set. The second housing defines a lumen configured to receive the second blood. a surgical handpiece for axially restraining the second housing relative to the first housing; a proximal end configured to engage a distal surface of a first housing of the do-piece system; A slider is movably coupled to the second housing of the calibration fixture. The rider is configured to move axially relative to the second housing. The proximal end is configured to engage a depth measuring extension of the surgical handpiece system. The slider also has a distal surface configured to engage a surgical screw. Based on the signal from the displacement sensor assembly and the nominal size of the surgical screw, The adjustment value for the orthopedic implant set is then determined.

[0009] Another exemplary configuration can determine the drill depth for an orthopedic implant set. A system for calibrating a surgical handpiece system is presented. The surgical handpiece system includes a housing and and a depth measuring extension movably connected to the housing. The housing has a distal end connected to the distal portion of the housing. The displacement sensor assembly is attached to the housing. The process is configured to generate a displacement signal in response to movement of the depth measuring extension relative to the sensor. The calibration fixture is configured to receive a signal from the displacement sensor assembly. a distal portion of the housing of the surgical handpiece system; The surgical handpiece system is configured to engage the depth measurement extension of the stem. and one of the calibration fixtures includes a presence sensor, The other of the fixtures includes an emitter. The presence sensor detects whether the calibration fixture is in contact with the surgical handpiece system. The stem is adapted to generate a signal in response to the presence of the emitter when engaged with a distal portion of the housing. The processor is configured to receive a signal from the presence sensor to determine whether the calibration fixture is in a surgical position. determining that the surgical handpiece is engaged with a distal portion of the housing of the handpiece system; The surgical handpiece system is configured to operate in a calibration mode. The signal from the displacement sensor assembly and the surgical screw while the system is in the calibration mode. Based on the nominal size of the orthopedic implant set, the adjustment value is determined.

[0010] Yet another exemplary configuration is for determining the drill depth for an orthopedic implant set. A method for calibrating a surgical handpiece system is presented. The method includes: Surgical hand with depth measuring extension movable relative to housing and first housing The method includes providing a piece system comprising a second housing defining a lumen. and a slider at least partially movable relative to the second housing within the lumen. The method also includes providing a calibration fixture comprising: The method also includes selecting a surgical screw having a nominal size. and selecting a surgical plate from the surgical graft set for use in the upcoming surgery. The method includes attaching a depth measuring extension of the surgical handpiece system to a slider of the calibration fixture. The method also includes engaging a surgical screw through the surgical plate. Inserting and engaging the head of the surgical screw against the surgical plate. The method further includes engaging a slider of the calibration fixture with the surgical screw. The method also includes engaging a distal surface of the second housing with a surgical plate. The method further includes connecting the depth measuring extension of the surgical handpiece system to a calibration fixture. The method includes pressing the orthopedic implant set by a slider. The adjustment value is determined based on the nominal size of the surgical screw and the displacement of the impacted depth measuring extension. and calibrating the surgical handpiece system.

[0011] Another exemplary configuration can determine the drill depth for an orthopedic implant set. A method for calibrating a surgical handpiece system is presented. The method includes a calibration fixture and and a surgical handpiece system including a displacement sensor assembly. One of the calibration fixture and the surgical handpiece system includes a presence sensor. The other of the calibration fixture and the surgical handpiece system includes an emitter. Engaging a distal portion of the surgical handpiece system with the proximal end of the calibration fitting. The method includes engaging a calibration fitting with a distal portion of a surgical handpiece system. The surgical handpiece system further includes determining with a presence sensor: In response to the presence sensor detecting the emitter, the method switches to a calibration mode. determining the displacement of a depth measuring extension of the surgical handpiece while in the positive mode. The method includes adjusting the adjustment value of the orthopedic implant set by measuring the depth of the implant during a calibration mode. Further comprising determining based on the displacement of the extension.

[0012] Yet another exemplary configuration is for determining the drill depth for an orthopedic implant set. A system for calibrating a surgical handpiece system is presented. The system comprises: A surgical handpiece system is provided, the surgical handpiece system comprising a drill bit configured to determine a bone thickness when the bone is drilled using the The calibration block determines the adjustment value of the orthopedic implant set. configured to engage a depth gauge provided with the orthopedic implant set to determine The calibration block is designed to couple to a plate from an orthopedic implant set. The top surface has a designed curved contour. The top surface has one or more grooves that accept a depth gauge. The block has a bottom surface that temporarily holds a distal portion of the depth gauge. The device has a recess intended to

[0013] Another exemplary configuration is for determining the appropriate screw length for bone fixation with a bone plate. A surgical handpiece system, comprising: a surgical handpiece system having a first end and a second end; A surgical handpiece system is presented that compensates for initial screw length values ​​based on orientation. The surgical handpiece system includes a surgical handpiece assembly. The handpiece assembly includes a handpiece housing and a and a motor disposed on the depth measuring extension and configured to generate a torque. is movably coupled to the handpiece housing. The surgical hand is configured to generate an orientation signal in response to the orientation of the drill bit. The piece assembly is connected to a motor and configured to receive torque from the motor. A processor receives the signal from the sensor and determines a position for bone fixation based on the signal from the sensor. The present invention is configured to determine an appropriate screw length for the [Brief description of the drawings]

[0014] [Figure 1]FIG. 1 is a perspective view of a surgical handpiece system including a surgical handpiece assembly and a measurement module, the surgical handpiece assembly shown with a drill bit and tip protector in one configuration. [Diagram 2] FIG. 2 is a partially exploded perspective view of the surgical handpiece system of FIG. 1 , the surgical handpiece system shown with the measurement module, the drive cannula, and the release assembly spaced from the handpiece housing assembly, the end effector assembly removed from the surgical handpiece assembly, and the tip guard shown spaced from the distal cutting tip portion of the drill bit. [Diagram 3] FIG. 4 is a partial isometric cross-sectional view taken along line 4-4 of FIG. 1. [Figure 4] 3 is a longitudinal cross-sectional view of the surgical handpiece assembly of FIGS. 1-2, showing the end effector assembly removed from the surgical handpiece assembly. FIG. [Diagram 5] FIG. 2 is a schematic partial block diagram illustrating some of the signal processing components of the surgical handpiece system. [Figure 6] FIG. 2 is a cross-sectional view of a calibration fitting that couples to a distal end of a surgical handpiece system. [Figure 7] FIG. 7 shows the same calibration fixture as FIG. 6 with all components compressed in line with each other. [Figure 8] FIG. 1 is a longitudinal cross-sectional view of a calibration fixture for automatic calibration of a surgical handpiece system. [Figure 9] FIG. 1 is a perspective view of a calibration fixture for automatic calibration of a surgical handpiece system prior to calibration. [Figure 10] FIG. 1 is a perspective view of a calibration fixture for automatic calibration of a surgical handpiece system during calibration. [Figure 11] 11A-11C are longitudinal cross-sectional views illustrating alternative configurations of a calibration fixture for automatic calibration of a surgical handpiece system. [Figure 12]FIG. 2 is a perspective view of a depth gauge. [Figure 13] FIG. 1 is a perspective view of a depth gauge used to measure the intercortical thickness of an artificial bone. [Figure 14] FIG. 2 is a perspective view of the top surface of the calibration block. [Figure 15] FIG. 2 is a perspective view of the bottom of the calibration block. [Figure 16] FIG. 1 is a perspective view of a surgical plate and a calibration block. [Figure 17] FIG. 1 is a perspective view of a depth gauge, a surgical plate, and a calibration block. [Figure 18] FIG. 13 is an enlarged perspective view of the bottom of the calibration block and the depth gauge. [Figure 19] FIG. 2 is an elevational view of a surgical handpiece assembly having a depth measuring extension in a first orientation. [Figure 20] 1 is an elevational view of a surgical handpiece assembly having a depth measuring extension in a second orientation. FIG. [Figure 21A] FIG. 13 is a cross-sectional view of a drill bit and depth measurement extension of a surgical handpiece assembly accessing the proximal cortex of a bone. [Figure 21B] FIG. 13 is a cross-sectional view of a drill bit and depth measurement extension of a surgical handpiece assembly contacting the proximal cortex of a bone. [Figure 22] FIG. 13 is a cross-sectional view of a drill bit and depth measurement extension of a surgical handpiece assembly contacting the proximal cortex of a bone at an oblique angle relative to the bone. [Figure 23] 1 is a cross-sectional view of a drill bit and depth measurement extension of a surgical handpiece assembly where the drill bit penetrates the proximal cortex of a bone at an oblique angle relative to the bone. [Figure 24] 1 is a cross-sectional view of a drill bit and depth measurement extension of a surgical handpiece assembly where the drill bit penetrates the proximal and distal cortices of a bone at an oblique angle relative to the bone. [Diagram 25] FIG. 1 is a perspective view of a surgical handpiece system including a surgical handpiece assembly and a remote device. [Figure 26]1 is an exemplary flow chart executed by a surgical handpiece system in accordance with the teachings of the present disclosure. [Figure 27] FIG. 13 is a perspective view of another calibration fixture for automatic calibration of a surgical handpiece system. [Figure 28] FIG. 28 is a cross-sectional view of the calibration fixture of FIG. 27. [Figure 29] FIG. 13 is a perspective view of another calibration block. [Diagram 30] FIG. 30 is another perspective view of the calibration block of FIG. 29. [Diagram 31] FIG. 30 is a cross-sectional view of the calibration block of FIG. 29. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] With reference to the drawings, a surgical instrument for performing operative functions associated with a medical and / or surgical procedure is shown. A handpiece system is shown at 60 in FIGS. 1-2. Like numbers are used throughout the figures to denote like structures. In a typical configuration, the surgical handpiece system 60 is adapted to penetrate tissue of a patient, e.g., bone. To this end, a surgical handpiece system The illustrated configuration at 60 includes a surgical handpiece assembly 62, generally designated 64. The end effector assembly 64 includes an end effector assembly The drill bit 66 and tip protector 68 are provided. As best shown in FIG. The drill bit 66 comprises a cutting tip portion generally designated 70 and an insert generally designated 72. The cutting portion extends generally longitudinally along an axis AX between the cutting portion and the cutting The tip portion 70 is configured to engage tissue and the insertion portion 72 is configured to be a surgical handpiece. 3. The drill bit 66 is configured to facilitate releasable attachment to the drill assembly 62. It has been done.

[0016] To facilitate attachment of a drill bit 66 to a surgical handpiece assembly 62 Additionally, in some configurations, the tip protector 68 may be attached to a cutting tip portion 70 of the drill bit 66. releasably secured to the cutting tip portion 70 of the drill bit 66 while concealing at least a portion of This allows the user of the surgical handpiece system 60 A surgeon (e.g., a surgeon) may insert a drill bit into the surgical handpiece assembly 62 during installation. Once the end effector assembly is in place, the robot can be safely handled and positioned. Once the tip assembly 64 is attached to the surgical handpiece assembly 62, the tip protector 6 8 is removed from the cutting tip portion 70 of the drill bit 66, thereby forming a surgical handpiece. The dope system 60 is then available for penetrating the tissue.

[0017] from various manufacturers (including screws, plates, nails, or pins along with depth gauges). A variety of different orthopedic implant sets are in use. Each implant set has a nominal thickness of Includes a variety of different screws with different clew lengths. Orthopedic Implant Set The depth gauge attached to the is used to measure the hole depth and to determine the nominal screw depth of the orthopedic implant set. The depth gauge is configured to provide a user with a measurement corresponding to the depth of the Consider items such as plate thickness and how the manufacturer determines screw length. For example, the thickness of the screw head may or may not be included. The difference between the bone thickness and the nominal screw length is called the "adjustment." There are.

[0018] Referring now to Figures 1-4, in the representative configuration shown therein, a surgical handpiece The handpiece assembly 62 includes a handpiece housing assembly 74 having a pistol grip-like handpiece housing assembly 74. The handpiece housing assembly 74 is embodied as a hand-held drill. The battery is releasably attached to the battery 76 (attachment to the battery is shown in detail). However, the handpiece housing assembly can be used with or without a pistol grip. It is contemplated that the surgical instrument may have any suitable shape, without departing from the spirit and scope of the invention. The handpiece assembly 62 is releasably attached to a handpiece housing assembly 74. An external battery 76 is used to rotate the drill bit 66. The surgical handpiece assembly 62 is adapted to provide power to the surgical handpiece assembly 62. The handpiece assembly 62 may, for example, be powered by an internal battery (e.g., a non-removable battery ) or other configurations using connectors to an external console, power source, etc. It should be understood that other configurations are contemplated.

[0019] In the illustrated configuration, a battery 76 or other power source provides power to and controls a controller 78. The control device 78 is in communication with a user input device 80 and an actuator assembly 82. The user input device 80 and the actuator assembly 82 are each The handpiece housing assembly 74 supports the control unit 78. to facilitate movement of actuator assembly 82 in response to actuation of user input device 80. In the illustrated configuration, the user input device 80 is configured to have a trigger-type structure. and responds to actuation by a user (e.g., a surgeon), e.g., a magnetoresistive sensor. The control device is connected to the power supply through an electrical signal generated by a sensor (e.g., a Hall effect sensor) and a magnet. 78. Thus, the surgeon can operate the surgical handpiece assembly 62. When the user activates the user input device 80, the controller 78 draws active power from the battery 76. The actuator assembly 82 is connected to the power supply 84. The actuator assembly 82 is connected to the power supply 84. 2, is used to rotate a drill bit 66 or other surgical end effector so as to Those skilled in the art will appreciate that the handpiece housing assembly 74 , battery 76, controller 78, and user input device 80 are each within the scope of this disclosure. Without departing from the principles of the present invention, the present invention may take many different forms to facilitate the production of rotational torque. It will be appreciated that this may be configured.

[0020] 1-4, the illustrated configuration of surgical handpiece system 60 includes: The measuring module 12 further includes a measuring module generally designated 128. 8 to the surgical handpiece assembly 62 to provide measurement capabilities to the surgeon during use. Optionally, the device is configured to be releasably attached. As shown in FIGS. 3 and 4, the measurement module 128 generally comprises a module housing. 130, guide bushing 132, depth measurement extension 134, and displacement sensor assembly 13 6, and a rotatable gear 146. In some configurations, the modular housing The gasket 130 is removably attachable to the handpiece housing assembly 74. In this configuration, the measurement module 128 is connected to the surgical handpiece assembly by other methods. 62. In some configurations, the measurement module 128 , one or more buttons for controlling the functions of the measurement module 128 . The module housing 130 generally supports the various components of the measurement module 128. In yet another configuration, the surgical handpiece assembly 62 and the measurement module 1 28 may not be releasably attached to each other. The handpiece assembly 62 and the measurement module 128 are mounted in a module housing 130. 3 and 4, which form a part of the base housing assembly 74. This is also fine.

[0021] The depth measurement extension 134 is disposed within the guide bushing 132 and is planar along the measurement axis MX. The measurement module 128 is supported for linear movement within the surgical handpiece assembly. When the measuring axis MX is attached to the sensor 62, the measuring axis MX is aligned coaxially with the axis AX. 2) is optionally provided within the depth measurement extension 134. The slits 21 and 22 are formed laterally so as to extend longitudinally.

[0022] The depth measurement extension 134 is linear along at least a portion of the length of the depth measurement extension 134. The rack further includes a plurality of rack teeth 144 disposed on the guide bushing. 4. The gear 146 is disposed adjacent the distal end of the gear 132. As such, the window 142 in the guide bushing 132 provides a space between the rack teeth 144 and the gear 146. 146. The gear 146 is disposed adjacent to the gear 146 to facilitate engagement therewith, thereby preventing rotation of the gear 146. and the movement of the depth measuring extension 134 will be directly proportional. 6 responds to the rotation of gear 146 resulting from the axial movement of depth measuring extension 134. and generating an electrical signal representative of the change in position of the depth-measuring extension 134 along the measurement axis MX. To generate the signal, a potentiometer 147 (shown in FIG. 5), a rotary encoder, or the like may be used. Thus, the displacement sensor assembly 136 is embodied in a surgical handpiece system. It should be appreciated that the present invention may provide improved functionality to the system 60. For example, In some configurations, the displacement sensor assembly 136 is disposed in communication with the controller 78. The controller 78 controls the drive of the motor 84 based on the movement of the depth measuring extension 134. To interrupt or adjust, for example, the drill bit 66 at a particular drilling depth into tissue. In some configurations, the controller 78 is configured to slow the rotation of the measurement motor. In yet another configuration, the displacement sensor assembly 136 is disposed within the module 128. , and is arranged to communicate with a sub-controller (not shown) of the measurement module 128. The actuator controller may be disposed in communication with the controller 78. Also, the displacement sensor assembly The assembly 136 is adapted to provide the surgeon with information regarding the movement of the depth measuring extension 134. For example, the display can be adjusted to show real-time drill depth, historical maximum drill depth, etc. Ray 148, e.g., a display screen, one or more light emitting diodes (LEDs), etc. Preferably, the device is arranged to communicate with the computer. Other configurations are contemplated. A speaker to provide an audible indication of time drilling depth, recorded historical maximum drilling depth, etc. The information may be transmitted to the user by the "Drill Bit" filed on September 1, 2016. "Powered Surgical Drill with Integral Depth Gauge with Probe that Slides Over the Throttle" Please refer to the disclosure of International Patent Application Publication No. 2017 / 040783. The disclosure of which is already incorporated herein in its entirety by reference.

[0023] The various components of the measurement module 128 may be arranged in many different ways. Additionally, the illustrated measurement module 128 is integrated into the illustrated surgical handpiece assembly. 62, and the calibration fixtures 200, 300, 400, 500, 1300 of the present disclosure are attached to the , 1500, but the surgical handpiece system 60 is In some configurations, for example, various types of modules, housings, covers, etc. may be used. It is also contemplated that measurement module 128 may be omitted for other purposes. The screw 128 is attached to the surgical handpiece assembly 62 at different locations. The surgical handpiece assembly 62 may be removable or may be permanently attached to the surgical handpiece assembly 62. The measurement module 128 may be a permanent part of the surgical handpiece assembly 62. In a configuration where it is not attached to the distal end of the The components described or illustrated in the drawings instead abut the surgical handpiece assembly 62. Additionally, the depth measurement extension 134 is shown as a cannula. Alternatively, it may partially surround the drill bit 66 or may be In other words, the depth measurement extension 134 may be offset so as to be parallel to the depth measurement extension 66. Any device having such a configuration is compatible with the devices and methods described herein. It is Noh.

[0024] FIG. 5 illustrates the location of the depth measurement extension 134 and the depth of the hole formed by the drill bit 66 based on the location of the depth measurement extension 134. FIG. 1 shows the basic electrical components of a surgical handpiece system 60 that provides a depth indication of the Ensure that drive signals of appropriate potentials are provided to the components representing hole depth. The voltage regulation components are not shown. The components that provide information about the hole depth are A voltage is applied to one end of the potentiometer 147. The other end of the potentiometer 147 is grounded. Voltage is applied to the processor 236 through the The zero setting switch 150 is connected to the display 1. It may be attached to 48.

[0025] Each set of one or more plates 234 and a number of screws 232 may include a Nominal screw lengths are given to identify the various screw sizes. For any individual set of plates 234 and screws 232, Nominal screw lengths do not necessarily correspond to the metric system. The screw length is the actual screw length with or without a screw head. The nominal screw length can be the length of the screw that will ultimately be used with the screw. The thickness of the plate 234 to be used may or may not be taken into consideration. To ensure accurate selection of the screw 232 appropriate for the surgical procedure, A specific depth gauge 260 (see, for example, FIG. 12) is attached to the plate 234 and the screen. The 232 is adapted to accompany each set of the 232.

[0026] As shown in FIG. 13, a depth gauge 260 is used to measure the thickness of a bone 266. The measurement markings 262 on the depth gauge 260 associated with a given set are It corresponds to the nominal screw length of the screw 232 indicated.

[0027] The surgical handpiece assembly 60 has sufficient information to allow selection of the screw 232. To provide this information, the surgical handpiece system 60 is capable of handling over 1,300 different processors. The speed sensor 234 and the screw 232 are calibrated to cooperate with one of the sets of the speed sensor 234 and the screw 232. As will be described below, the surgical handpiece system 60 is adapted to accommodate a particular implant set. 230 includes a plate 234 and a screw 232 or a graft set 230 associated with the plate 234 and the ... graft set 230 The depth gauge 260 may be used to calibrate the depth of the water.

[0028] A system for calibrating a surgical handpiece system 60 is shown in FIGS. In this system, a measurement module 128 is provided for the surgical handpiece system 60. To calibrate the measurement module 12, a set of screws 232 and a plate 234 are 8 and calibration fixture 200.

[0029] In this system, the calibration fixture 200 has a proximal end opening 204 at a proximal end 206 and a distal end 208 at a distal end 209. An elongated housing 202, e.g., tubular or The housing 202 has a rectangular shape. The housing 202 defines a lumen 212.

[0030] The housing 202 is free to move axially within the lumen 212 of the housing 202. The slider 214 includes a proximal surface 226 that is adapted to receive the measurement module 222. The depth measuring extension 134 of the slide 128 is designed to abut against the distal end 138 of the slide 128. The distal surface 228 of the screw 214 is designed to engage the tip of a selected screw 232. It has been done.

[0031] To use the system of FIGS. 6 and 7, a depth measurement extension 134 is provided from the measurement module 128. The housing 202 is fully extended such that the depth measurement extension 134 is disposed within the lumen 212. The depth measuring extension 134 is disposed over the housing 20 so as to be positioned in the housing 20. The proximal end 206 of the 2 is pressed against the end of the measurement module 128 or is connected to a linkage mechanism 216 The interlocking mechanism is fixed to the measurement module 128 using an interlocking recess 218. and protrusion 220, the interlocking mechanism may take other suitable forms. I want you to understand this.

[0032] The slider 214 of the calibration fixture 200 is located in a distal region of the calibration fixture 200 and is aligned with the starting point The slider 21 abuts against the depth measuring extension 134 at a point called SP. 4 is configured to move axially within the lumen 212 of the housing 202. The precise movement of the slider 214 is required to ensure smooth movement relative to the longitudinal axis of the lumen. by wings 222 which seat in correspondingly sized grooves 224 in the housing 202. The slider 214 may alternatively be slidable within the lumen 212 of the housing 202. and adapted to interact with the housing 202 in a manner that ensures smooth movement. Good too.

[0033] To operate the measurement module 128 in the calibration mode, the user 128 or one or more user inputs on the surgical handpiece assembly 62. This will zero the measurement module 128. The user then selects screws 232 and plates 234 of any length from the set to be used A plate 234 is placed against the distal end 210 of the calibration housing 202 and the screw 2 32 is inserted into the distal end 210 of the calibration fixture 200 through the distal opening 208 of the plate 234. The end of the screw 232 is inserted so that the slider 214 is in the final position FP shown in FIG. The slider 214 and the depth measuring extension 134 are displaced so that they come to rest. The display 148 of the controller 128 is adapted to indicate the resulting measured extension displacement. good.

[0034] In the example of Figures 6 and 7, the user selected a 26mm screw, which is The measurement extension 134 is displaced by 23 mm. This displacement is based on the surgical handpiece system. 60 is related to the measured cortical to cortical bone thickness. The difference (3 mm) between the label length (26 mm) and the measured displacement (23 mm) of 2 is The length adjustment value for a set of screws 232 and plates 234 is then Enter the "Calibration Mode". The Calibration Mode is where the length adjustment value is measured. The measurement is entered into the determination module 128 and stored in the memory of the measurement module 128 for the remainder of the procedure. This allows the data to be stored within the unit.

[0035] The user then enters one or more user inputs on the surgical handpiece system 60. Enter "Drilling Mode" by operating the Drilling Mode. While in Drilling Mode, The stored adjustment values ​​are then used by the measurement module 128 when the user drills into the patient's bone. This is automatically added to the actual depth measurements determined by the This technique allows for absolute measurement of bone thickness for a given system and proper screw selection. Alternatively, this adjustment value may be adjusted to effectively fill the gap between the appropriate screw 232 selection. may be reserved by the user to allow for selection. In other words, the user may When determining the appropriate screw length to be used, the If you add 3mm to the measurement, you will know that you need to add 3mm to the measurement.

[0036] 8, 9 and 10 show alternative designs for calibrating a surgical handpiece system 60. Calibration fixture 300 and a measurement module that interfaces with set screw 232 and plate 234. FIG. 1 illustrates another calibration system using a surgical handpiece system 60 having a calibration module 128. Several modifications and additions have been made to the system and method shown in FIGS. is.

[0037] The calibration fixture 300 is shown as having a T-shaped housing 302. Housing 302 provides ergonomic benefits when holding calibration fixture 300. The T-shape also provides a larger surface area for the plate 234 to rest on.

[0038] The surgical handpiece system 60 and the calibration fixture 300 include a calibration sensor assembly 34. 0. Sensor 342 is included in the measurement module 128. Sensor 3 42 to a processor in the measurement module 128 or the surgical handpiece assembly 62 The processor 236 performs calibration based on the input signal from the sensor 342. Determining Whether the Applicator 300 is Located Proximate to the Surgical Handpiece System 60 The sensor assembly 340 is configured to include a second component, e.g. The emitter is disposed in the calibration fixture 300 and transmits a signal to the sensor 342. The processor 236 is configured to detect whether the calibration fixture 300 is in a measurement module 12. 8, the measurement module 128 automatically enters calibration mode. The processor can switch the calibration fixture 300 to the measurement module 1. 28 is less than a predetermined distance, e.g., less than 1 mm, from the calibration fixture 300. It should be understood that the above-mentioned arrangement may be adjusted to determine that the adjacent The processor determines only that the calibration fixture 300 is abutting the measurement module 128. In other configurations, the processor may be configured to 2. The power supply 62 may be connected to the surgical handpiece assembly 62 or other parts of the surgical handpiece system 60. The measurement module 128 may be automatically switched into calibration mode when a force is first applied. stomach.

[0039] In one possible embodiment, the sensor 342 comprises a magnetoresistive sensor. The sensor 342 may be located at the distal end of the measurement module 128 or the surgical handpiece assembly 62. The calibration fixture 300 may be positioned near the proximal end 306 of the calibration fixture 300. The sensor assembly may include an emitter 346, such as a magnet, positioned near the sensor. Bridge 340 may take other suitable forms for detecting the proximity of calibration fixture 300. For example, the sensor 342 may be a push-type mechanical button or switch. , an RFID antenna activated by a coil included in the calibration fixture 300, a capacitance This may take the form of a sensor, or a Hall effect sensor.

[0040] Also, when the calibration fixture 30 is in close proximity to the measurement module, the sensor 342 emits multiple In order to enable detection of one or more of the emitters 346, multiple emitters 346 are compared. It is also contemplated that the positive fitting 300 may be located near the proximal end of the positive fitting 300. This feature is The calibration fixture 300 is oriented in a number of different radial positions relative to the measurement module 128. When the calibration fixture 300 is in close proximity to the measurement module 128, the sensor 342 is still In one configuration, the array of emitters 346 is A is a proximal opening of the calibration fixture 300 configured to receive the depth measurement extension 134. The emitters 346 of the array are arranged around the calibration fixture 300. 0, the sensor 342 is in close proximity to the measurement module 128 in any radial direction. The sensors may be spaced apart from each other in the circumferential direction so that they can be detected.

[0041] In another configuration, the sensor 342 is attached to the calibration fixture 300 near the proximal end of the calibration fixture 300. 0, and emitter 346 is measured near the distal end of module housing 130. The signal processing module 128 may be coupled to the signal processing module 128 .

[0042] The processor determines whether the calibration fixture 300 is in contact with the surgical handpiece based on the input signal of the sensor 342. If it is determined that the device is located in proximity to the surgical system 60, the measurement module 128 or the surgical The handpiece assembly 62 is then switched to the calibration mode. 128 is inserted into the desired plate 2 by the procedure described for the system shown in FIGS. 34 and the screw 232 set, and the length adjustment value is determined by the measurement module 128 Once the length adjustment value has been stored in the memory unit of the measurement module 128, the user Enter hole mode again. While in hole mode, the length adjustments will automatically track the measured displacement. These will be added to inform the surgeon on appropriate screw selection.

[0043] The processor 236 also determines whether the calibration fixture 300 is no longer in use with the surgical handpiece system 60. When the measurement module 128 determines that the target object is not located in close proximity to the target object, the measurement module 128 automatically switches to drilling mode. It should be appreciated that the meter sends a command to the measurement module 128 to switch to the meter mode. , and may also be based on elapsed time. For example, the processor 236 may 15 seconds after determining that the 00 is no longer in close proximity to the handpiece, the measurement module 128 to switch to punch mode. Although reference is made to a measurement module 128, the same logical steps may be followed for a surgical handpiece. It should be understood that these may be performed by any component of assembly 62. The steps include, but are not limited to, performing calculations, determining proximity, and then performing a calibration model. This includes switching to a drilling mode or a scanning mode.

[0044] In the system of FIGS. 8-10, a calibration housing 302 is disposed over the depth measurement extension 134. 1 and pressed against the distal end of the surgical handpiece system 60 (as shown). The surgical handpiece system 60 is adapted to be secured to the surgical handpiece system 60 using a linkage mechanism (not shown). The slider 314 of the calibration fixture 300 is aligned in the calibration fixture 300 before the screw 232 is inserted. The distal end of the depth measurement extension 134 is disposed in the distal region of the lumen 312 of the catheter 300. 3, the measurement module 128 abuts the proximal end 336 of the slider 314. As previously described, the measurement module 128 The processor detects that the fitting 300 is located adjacent to the surgical handpiece system 60. When the 236 detects this it automatically switches into calibration mode.

[0045] When the measurement module 128 is switched into the calibration mode, the depth readings are zeroed and the The processor 236 receives the signal from the displacement sensor assembly 136 associated with the depth measurement extension 134. Wait for further input. The user then enters a particular nominal screw length for the set, e.g. The user is prompted by the display 148 to select the screw 232 having a diameter of 26 mm. A screw length between 24mm and 36mm is ideal because this length: In general, all kinds of graft sets for small bones, e.g. foot bones, as well as for large bones, For example, it is included in a femoral graft set. 8 is placed against the distal end of the calibration fixture housing 302, and the screw 232 is attached to the plate 234 into the distal end of the calibration fixture 300. As shown in FIGS. , the end of the screw 232 contacts the distal end 338 of the slider 314, and displacing the depth measuring extension 134.

[0046] The calibration mode is initiated by a user input device to input a measurement model to the surgical handpiece assembly 62. In other configurations where the input has already been entered by the connection of module 128 or by other means, , before the calibration fixture 300 is placed adjacent to the measurement module 128, the screw 23 2, plate 234, and calibration housing 302 may be engaged with each other. The bone-contacting surface 238 of the calibration fixture 234 is placed against the distal end of the calibration fixture housing 302 and the script A screw 232 is inserted into the distal end of the calibration fixture 300 through a plate 234. The end of the spring 232 contacts the distal end 338 of the slider 314. The tool 300 is positioned adjacent to the measurement module 128 and the slider 314 is attached to the depth measurement extension 128. The calibration fixture 300, the measurement module 128, the screw 232, and plates 234 may be engaged with one another in a different order, the relative positions and engagements being the same as herein. The exact adjustment values ​​are accurate as long as they are the same as shown in the configurations shown and described. It is also considered that

[0047] In other configurations, the user may insert one of many screws, each having a given nominal length. The measurement module 128 determines the range of displacement of the depth measurement extension. Based on this, it is determined that the screw 232 has a particular nominal length, and then the measurement module The module 128 determines the length of the screw based on the displacement of the depth measurement extension 134 and the identified nominal screw length. For example, the user can determine the adjustment value for the first nominal screw of the set. 2. Select a screw 232 having either the first nominal screw length or the second nominal screw length of the set. The display 148 prompts the user to select. Based on the displacement of the fixed extension 134 and the range of that displacement, which screw was selected The measurement module 128 can automatically determine which screw is selected. After determining whether the adjustment has been made, an adjustment value may be determined as described herein.

[0048] In some configurations, to determine the adjustment value, the measurement module 128 may One or more adjustment parameters must be met to record the final displacement of the long portion 134. To achieve accurate tolerance overlap between the calibration fixture 300 and the measurement module 128, One adjustment parameter for this is the proximity of the calibration fixture 300 to the measurement module 128. The other adjustment parameters are determined by the module housing 342. The relative position of the depth measuring extension 134 with respect to the ring 130 is within a certain range. For example, if a user moves the slider 314 and / or the depth measurement extension 134 to a particular minimum threshold, If you select a screw 232 from the set that is too short to displace the value, the displacement will be recorded. and the user must use a longer screw. Select the screw 232 from the set that is too long to displace the slider to its maximum threshold. If so, the displacement will not be recorded and the user will need to use a shorter screw 232. Furthermore, if the screw 232 is too long, the slider 314 may be in the lumen 312. If it were located at the proximal end, the head of the screw 232 would not come into contact with the plate 234. 3, the screw 232 may be engaged with the distal end of the slider 314 and the distal end of the calibration housing 302. Further adjustment parameters can be adjusted by adjusting the calibration housing. The position of the depth measurement extension 134 relative to the ring 302 remains unchanged for a period of time. For example, the user may select a script in which the measurement module 128 is selected. A minimum time, e.g., between 0.2 and 3 seconds, is required to record the final displacement of the tube. It is necessary to hold the calibration housing 302 stable.

[0049] The measurement module 128 automatically calculates and stores the length adjustment value. The calculation is performed as shown in FIG. This can be done by mechanical addition and subtraction of the known distance and the measured distance determined by the method. Dimension A is the length of the calibration fixture 300 from the proximal end 306 to the distal end 310. The length is the distance between the distal end of the measurement module 128 and the bone-contacting surface 238 of the plate 234. Dimension B is the distance from the distal end of the measurement module 128 to the distal end of the depth measurement extension 134. The dimension C is the distance to the edge, which is measured using the measurement module 128. , the length of the slider 314. Finally, the dimension D is the distance from the tip of the selected screw to the The unknown distance to the bone-contacting surface 238 of the plate 234 .

[0050] The measurement module 128 determines, by simply subtracting dimensions B and C from dimension A, The dimension D, i.e. the displacement caused by the insertion of the screw 232, can be determined. Dimension D would be the same as if the screw 232 were inserted into the bone instead of the calibration fixture 300. , which is related to the cortical to cortical bone thickness. The nominal length of the screw 232 is also known. Therefore, the measurement module 128 calculates the screw length by subtracting the dimension D from the nominal screw length. The length adjustment value is then determined and automatically stored in the memory unit during surgery. Alternatively (or additionally), the adjustment value can be displayed on the display 148, the slider The adjustment value may be rounded to the nearest 100 and reported to the user by the peaker, or both. For example, a set of screws 232 may be provided in 1 mm or 2 mm increments. The measurement module 128 rounds the output of the recommended screw length to the nearest mm. or automatically round up or down to the next mm or the next whole mm. This is also fine.

[0051] In some applications, ensure that the screw is long enough to penetrate completely through the bone. It is advantageous to round off the protruding screw tip, and in these cases rounding off is preferred. In other operations where there is a high risk of damaging the surrounding tissue due to surgery, truncation is preferred. The handpiece system 60 receives information regarding the planned procedure and accordingly It may be a good idea to revise the calculation of the recommended screw length.

[0052] In an exemplary calculation based on the system shown in FIG. 8, the user selects a nominal length of 30 mm. This will result in a screw 232 having a dimension D of 28 mm. The adjustment is 2 mm (i.e., the displacement of dimension D is 28 mm and the nominal value is 30 mm). This 2 mm adjustment is stored. Then, after the drilling is completed, If the cortex-to-cortex bone measurement is determined to be 34 mm, the measurement module The 128 outputs a recommended screw length of 36mm.

[0053] Processor-based calculations instead of manual calculations allow additional significant digits to be included in the adjustments. This further improves the accuracy of adjustment.

[0054] 27 and 28, an alternative configuration of the calibration fixture 1300 is shown. The various components of the attachment 1300 are identified by reference numerals incremented by 1000. It should be understood that the 1000 has elements similar to those shown in 8-10. It is understood that elements with added reference numbers have the same features as those previously described. stomach.

[0055] 27 and 28 show a surgical handpiece system 60 having a measurement module 128. In another embodiment of the present invention, the measurement module 128 is a surgical handpiece system. To calibrate 60, an alternative design calibration fixture 1300 and set screw 232 2 and in conjunction with plate 234, another calibration system is shown.

[0056] Similar to the calibration fixture 300 of FIGS. 8-10, the calibration fixture 1300 includes a T-shaped housing 130. 2. The T-shaped housing 1302 is shown in the calibration fixture 1300. The T-shape also provides an ergonomic benefit when holding the plate 234 stationary. This provides a larger surface area for

[0057] Another similarity to the calibration fixture 300 shown in FIGS. 8-10 is that the calibration sensor (not shown) The sensor 342 is connected to the measurement module 128 or the surgical handpiece assembly. The processor 236 is coupled to a processor in the assembly 62. The processor 236 receives the signal from the sensor 342. Based on the input signal, a calibration fixture 1300 is positioned adjacent to the surgical handpiece system. The sensor assembly is configured to determine whether the calibration fixture 1 a second component disposed within 300 and configured to transmit a signal to the sensor 342; The processor 236 detects that the calibration fixture 1300 is in close proximity to the measurement module 128. If the measurement module 128 determines that the object is located within the calibration range, the measurement module 128 automatically switches to a calibration mode. The processor detects whether the calibration fixture 1300 is within a predetermined distance from the measurement module 128, e.g. For example, the calibration fixture 1300 may be determined to be in close proximity when less than 1 mm apart. It should be understood that it would be better to adjust it as follows.

[0058] In one possible embodiment, the sensor 342 is a magnetic (such as a Hall effect sensor). The sensor 342 is a resistive sensor. The calibration fixture 130 may be positioned near the distal end of the handpiece assembly 62. 13 includes a magnet 1346 positioned near the proximal end 1306 of the calibration fixture 1300. The sensor assembly 340 may include other sensors to detect the proximity of the calibration fixture 1300. It is also contemplated that the sensor 342 may take any suitable form. For example, the sensor 342 may be a push-in type 1300, which is activated by a mechanical button or switch, or a coil contained in the calibration fixture 1300. The signal may take the form of an RFID antenna, or a capacitive sensor.

[0059] The processor determines whether the calibration fixture 1300 is in alignment with the surgical handpiece based on the input signal of the sensor 342. If it is determined that the measurement module 128 or the external The dental handpiece assembly 62 is then switched to the calibration mode. 6 and 7. 234 and the screw 232 set, and the length adjustment value is determined and the measurement module 12 Once the user has stored the length adjustment value in the memory unit of the measurement module 128, Enter drilling mode again. While in drilling mode, the length adjustment value is automatically added to the measured displacement. and inform the surgeon of appropriate screw selection.

[0060] The processor 236 also determines whether the calibration fixture 1300 is no longer connected to the surgical handpiece system 6. When the measurement module 128 determines that the measurement is not located close to zero, the measurement module 128 is automatically placed in a drilling mode. It should be understood that the meter 128 then sends a command to the measurement module 128 to switch to this function. may also be based on elapsed time. For example, the processor 236 may 15 seconds after the 1300 determines it is no longer in close proximity to the handpiece, the measurement module The logic steps described above are: Although reference is made to the measurement module 128 performing the same logical steps, the same It should be understood that this may be performed by any component of handpiece assembly 62. These steps include, but are not limited to, performing a calculation, determining proximity, and then , switching to a calibration mode or a drilling mode.

[0061] The calibration fixture housing 1302 is placed over the depth measurement extension 134 and is secured to the surgical hand. The distal end of the handpiece system 60 is pressed against the handpiece system 60 or is attached to the handpiece system 60 using a linkage mechanism (not shown). The calibration fixture 130 is adapted to be secured to the surgical handpiece system 60 via a The slider 1314 at 0 is aligned with the lumen 1 of the calibration fixture 1300 prior to the insertion of the screw 232. 312. The distal end of the depth measurement extension 134 is disposed in the distal region of the slider 13. 14. As previously mentioned, the measurement module 128 is The processor detects that the tool 1300 is located in proximity to the surgical handpiece system 60. When the measurement module 128 detects the presence of a temperature sensor, it automatically switches to the calibration mode. When the mode is switched to, the depth reading is zeroed and the processor 236 starts the depth measurement extension. 134 and the associated displacement sensor assembly 136. The disk is adapted to select a screw 232 having a particular nominal screw length from the set. The bone-contacting surface 238 of the plate 234 is guided by the play 148. The screw 232 is inserted through the plate 234 and into the distal end of the guide 1302. The end of the screw 232 is inserted into the distal end of the attachment 1300. 13, contacting the distal end 1338 and displacing the slider 1314 and the depth measuring extension 134.

[0062] The distal end of the calibration housing 1302 has a distal surface with a ridge 1348. 348 is designed to have a curvature similar to that of bone, and therefore corresponds to the bone-contacting surface 238 of the plate 234. The ridge 1348 is designed to fit snugly around any of the calibration housing 1302. This is an optional improvement. Instead of a ridge, the entire distal surface of the calibration housing 1302 is curved. It may be curved or flat.

[0063] The slider 1314 is a calibration housing that defines the lumen 1312 of the calibration housing 1302. The biasing mechanism 1350 is configured to abut against a side wall of the gasket 1302. prevents the slider 1314 from moving freely within the lumen 1312 of the calibration housing. The slider 1314 is restricted in its free movement, but as described above, It should be understood that the biasing mechanism 135 can still be moved by user manipulation. 0 consists of a spring-loaded plunger that abuts against the side wall of the calibration housing 1302. The slider 1302 may be biased in the lumen 1312 of the calibration housing 1302 using another biasing mechanism. It is also conceivable to prevent free movement of the plunger 314. The spring-loaded plunger is inserted into the body and into the recess of the body. having a ball (or, in some cases, a pin) at least partially received within the The ball is arranged so as to protrude outward from the body toward the side wall of the calibration housing 1302. A spring located within a recess in the body applies a constant force to the ball. and configured to bias the ball toward the side wall of the calibration housing 1302. The engagement of the ball against the sidewall of the calibration housing 1302 causes a sliding motion within the lumen 1312. 1314. The cam 1314 acts to prevent free movement of the cam 1314.

[0064] An alternative housing for the automated calibration described above is shown in FIG. Instead of the casing 302 (FIGS. 8-10) and the T-shaped housing 1302 (FIGS. 27-28), The depth measurement extension 134 is a first part of the housing 402. The screw 232 is inserted into the plate 234. The set is inserted into the second receptacle 450 of the housing 402. The head is held in place by a centering spring 452. The second receiver 450 is The calibration fixture 400 is open along the proximal end 406 and along the side 454. Once the plates 232 are inserted through the plate 234, they pass through the side openings of the calibration fixture 400. The screw 232 is then inserted into the second receiving portion 450 through the opening 454. Finally, the tip of the screw 232 is Pocket 456 holds the surgical handpiece in place to better secure it against movement during calibration. The sensor assembly 62 is attached to the distal end of the measurement module 128 .

[0065] In this configuration, the measurement module 128 measures the dimension D, i.e., The distance to the distal end of the module 128 can be calculated more directly because the depth The displacement of the measurement extension 134 is known, and the plate 134 is In other words, the position of the dimension E - the distal end of the depth measurement extension 134 is known. The known distance from the end to the bone-contacting surface 238 of the plate 234 is measured using dimension F-depth measurement extension 13 Determine dimension D by subtracting the known distance to pocket 456 from 4. Again, since the nominal length of the selected screw 232 is known, the screw The adjustment value can be determined by subtracting dimension D from the nominal length of the lead 232. This adjustment may be automatically stored for the duration of the procedure. The adjustment value may be notified to the user.

[0066] 14-18 are diagrams for determining the adjustment value of the set of screws 232 and plates 234. In addition to the calibration block 500, the system The depth gauge 260 (FIGS. 12 and 13) from the set used and the plate from the set used The rate 234 is used to determine the adjustment value. The calibration block 500 shown is an elongated body having curved edges. Designed to fit easily into some shapes, e.g. T-shaped or square connectors. Additionally, the calibration block 500 may have a top surface with a ridge 504. The protuberances 504 are designed to have a curvature similar to that of bone, and therefore to facilitate the insertion of the protuberances. The protuberance 504 is designed to closely engage the bone-contacting surface 238 of the support 234. This is an optional improvement of the calibration block 500. Instead of a protuberance, the top of the calibration block 500 The entire surface 502 may be curved or flat. 500 includes two holes, specifically, a smaller hole 506 and a larger hole 508. The calibration block 500 may have only one hole or three or more holes. The various sizes of the small holes 506 and the large holes 508 correspond to the dimensions of the screws 232 and the plate 234. It should have a slightly larger fit than the depth gauge 260 that comes with the set. The small holes 506 and the large holes 508 each have a known depth. In this case, both holes 506 / 508 have a depth of 30 mm. Alternative designs may be used, for example screws 232 and plates for the bones of the hands and feet. When used with the depth gauge 260 that accompanies the set of ports 234, It is beneficial to use a larger hole because the larger hole has a greater depth. 500 should have a more triangular shape along its side profile. Also, the calibration block The holes at 500 may be labeled with the depth of the hole. A raised edge 512 is formed on the inside of the recess 514 around each of the small and large holes 506, 508. The raised edge 512 and recess 514 each accommodate a hook of the depth gauge 260. These provide an improved surface for the material to be stably held in place, but both are optional. This is true.

[0067] For setting orthopedic screws 232 and plates 234 using a calibration block The adjustment value is determined by placing plate 234 over the appropriate hole as shown in Figures 16-18. Here, small holes 506 are used. The mount 234 is placed on the calibration block 500 in the same manner as it is placed on the bone during implantation. The bone-contacting surface 238 should be positioned so that it contacts the top surface 502 of the calibration block 500. The depth gauge 260 is then inserted through the small hole 506. The hook end 264 of the depth gauge 260 is placed in contact with the bottom surface 510 of the calibration block 500. This allows the user to measure the depth by the measurement markings 262 on the depth gauge 260. This gives the screw length.

[0068] In this case, the nominal screw length is shown as 33 mm on the depth gauge 260 in FIG. Therefore, the adjustment value is 33mm-30mm hole depth, i.e. 3mm. The adjustment value of 3 mm is stored in the memory, and the output of the measurement module 128 after drilling is set to this adjustment value. Alternatively, the user may wish to add a ".screw length" to the output of the recommended screw length. This adjustment is automatically based on the nominal screw length of the surgical handpiece system. Before each procedure, the surgical handpiece system 60 may be The user may be prompted to provide adjustments via a ray 148. This allows the memory of the surgical handpiece system 60 to store the data for the duration of the procedure. The adjustment value of the lever is stored.

[0069] 29-31, an alternative configuration of the calibration block 1500 is shown. The various components of block 1500 are identified by reference numerals incremented by 1000. It should be understood that the present invention includes elements similar to those shown in Figures 14-18. Those elements with reference numbers with 00 added have the same characteristics as previously described. I want you to understand this.

[0070] 29-31 are diagrams for determining the adjustment value of the set of screws 232 and plates 234. In addition to the configuration block 1500, the system includes: Depth gauge 260 from the set used (FIGS. 12 and 13) and The plate 234 is used to determine the adjustment value. The calibration block 1500 shown is an elongated body with rounded edges. Designed to fit easily in the hand, but available in several shapes, e.g. T-shaped or square. The calibration block 1500 may also have square corners and edges. The positive block 1500 is provided with contoured sides to aid in gripping. Additionally, the calibration block 1500 has an upper surface 1502 with a ridge 1504. 1504 is adapted to have a curvature similar to that of bone, and therefore is adapted to have a curvature similar to that of bone-contacting surface 238 of plate 234. The ridge 1504 is designed to tightly engage with any of the calibration blocks 1500. Instead of a bump, the entire top surface 1502 of the calibration block 1500 is It may be curved or flat. In addition, the calibration block 1500 has holes 1 506. The calibration block 1500 may include more than one hole. 506 has a known depth.

[0071] Setting the orthopedic screws 232 and plates 234 using the calibration block 1500 Determining the adjustment value for is performed by placing plate 234 over hole 1506. The selected plate 234 is placed in the calibration block in the same manner as it will be placed on the bone during implantation. The bone-contacting surface 238 should be placed on the calibration block 1500. The depth gauge 260 should then be placed in contact with the top surface 1502. 506. The hook end 264 of the depth gauge 260 is inserted through the calibration block 150. 0 bottom surface 1510. This allows the user to measure the depth gauge 260. Fixed markings 262 provide the screw length.

[0072] The calibration block 1500 defines a cavity 1516 to reduce the weight of the calibration block 1500. The open-ended cavity 1516 advantageously allows for easier cleaning of the cavity. However, the cavity 1516 may alternatively be closed at one end to form a blind hole. This is also taken into consideration.

[0073] During some surgical procedures, screws 232 or other implants are inserted into the patient's bone at an oblique angle. In such procedures, it may be desirable to optimize the screw length for this procedure. The appropriate selection must further compensate for the nominal screw length. The head of the screw 232, when inserted at an oblique angle, fits into the proximal chamfer of the bone plate 234. 21A-24) of the patient's bone. May not be sufficiently parallel, e.g., requiring drilling through the proximal and distal cortices. During the procedure, if the screw is inserted at an oblique angle, the head of the screw 232 will When the screw head is perpendicular to the plate hole, the plate is different from the part where the screw head contacts. 234, so that the screw 232 is fully seated in the plate hole. If the head of the screw 232 does not fit fully into the plate hole, If compensation had not been performed without the measuring head seated on the selected screen, The screw length may be shorter than the desired screw length and may cause the screw 232 to move distally during the procedure. It may not be inserted through the cortex 552 or may not be inserted to the distal cortex 552 . By adding a compensation length based on the angle at which the screw 232 is inserted, the screw This compensation length reduces the possibility that the play length is too short. Surgical handpiece system for various combinations of insert 234 and screw 232 This should be added to the adjustment length obtained from the calibration of 60. In other words, the appropriate screw length The length is determined by the surgical handle for the particular type of screw 232 and plate 234 selected. The dowel system 60 is then calibrated and compared against the angle at which the screw 232 is inserted. The corrected screw length value may be selected by compensating for the corrected screw length value. In some configurations where the Even when no adjustment is made, the nominal screw length is determined by the angle at which the screw 232 is inserted. It is also contemplated that compensation may still be provided for the degree of

[0074] With reference to FIG. 4, the surgical handpiece assembly 62 includes a sensor 554 . The sensor 554 measures the orientation of the surgical handpiece assembly 62, and more specifically, the depth of the Generates an orientation signal according to the orientation of the measurement axis MX of the extension 134 and the depth measurement extension 134 The control device 78 receives a signal from the sensor 554 and 4 to determine the appropriate screw length for bone fixation. The sensor 554 transmits a signal to the controller 78 depending on the orientation of the surgical handpiece assembly 62. An accelerometer, a gyroscope sensor, a stereoscope sensor, and a The sensor 554 may be a handpiece housing assembly. The module housing 130 may be removably attached to the reel 74. Alternatively, the sensor 554 may be configured to detect whether the module housing 130 is in contact with the handpiece housing assembly. In the configuration where the handpiece is integral with the handpiece housing assembly 74, It may be possible.

[0075] 19 and 20, the angle at which the screw 232 is inserted to find the compensation length. The angle at which the surgical handpiece assembly 62 drills may be used to determine The depth measurement extension 134 is aligned in a reference orientation 556 (shown in FIG. 19) and a reference orientation 557 (shown in FIG. 20). The reference orientation 556 can be moved by the user between the measurement and the drilling orientation 558. The fixed axis MX is aligned with a reference axis RX passing through a hole 560 defined by the bone plate 234. In many configurations, the reference axis RX is aligned with one of the bone 266 and the bone plate 234. In the drilling orientation 558, the measurement axis MX of the depth measurement extension 134 is , at an oblique angle to the reference axis RX. This oblique angle is It is a corner.

[0076] The controller 78 receives the depth measurement signal from a sensor 554 corresponding to the depth measurement extension 134 in the drilling orientation 558. The controller 78 is configured to receive the orientation signals from the navigation system 100. The control device is configured to determine the drilling angle of the depth measuring extension 134 based on the drilling angle. 78 is configured to determine the compensation length based on the drilling angle. The control device 78 uses this compensation length to determine the nominal or calibrated screw length. Determine the appropriate screw length for bone fixation by compensating for either the drilling angle or the length. It is possible.

[0077] As shown in FIG. 4, the sensor 554 may be a gyroscope sensor 554. In the embodiment, the gyroscope sensor 554 is coupled to the module housing 130. In another configuration, the gyroscope sensor 554 may be mounted on the handpiece housing. The gyroscope sensor 554 is coupled to the assembly 74 in response to the angular velocity. The orientation signal is generated when the depth measurement extension 134 changes the drilling orientation from the reference orientation 556 to the 558, corresponding to the change in orientation of the depth measurement extension 134. The angular velocity data includes angular velocity values ​​in at least two directions: the Z direction and the Y direction (see FIGS. 19 and 20). The controller 78 calculates the depth measurement by integrating these angular velocity values ​​over a duration of time. The duration is configured to determine the drilling angle of the constant extension 134. is determined and ends when the drilling orientation 558 is determined. Then, the angular velocity value By integrating, the controller 78 obtains from the reference orientation 556 of the depth measuring extension 134 The controller 78 determines the change in orientation to the drilling orientation 558. The drilling angle between the drilling orientation 558 can be determined.

[0078] The user adjusts the surgical handpiece system to determine the reference orientation 556 and the drilling orientation 558. Alternatively, the controller 78 may be operatively associated with a user input portion of the system 60. to determine the reference orientation 556 and the drilling orientation 558 according to several parameters. Some of these parameters are described below. Once the reference orientation 556 and the drilling orientation 558 are determined, the bone plate 234 is The drilling angle is adjusted based on the user's intended orientation / operation of the surgical handpiece assembly 62. In other words, the user can select the reference direction by the controller 78 with a higher degree of accuracy. Operate the surgical handpiece assembly 62 to determine the drilling position 556 and drilling orientation 558. Some parameters for determining the time or reference direction 556 and the drilling direction 558 related to the possible When the meter is filled, the controller 78 detects the erroneous direction from the heading signal produced by the sensor 554. The possibility of determining the drilling angle is reduced.

[0079] As previously mentioned, the displacement sensor assembly 136 is adapted to sense the position of the hole during or leading up to the drilling process. to the controller 78 in response to the displacement of the drill bit 66 relative to the depth measuring extension 134 until the The displacement signal is generated based on one of the reference orientation 556 and the drilling orientation 558. Or both, the controller 78 (i) receives a displacement signal and (ii) detects whether the drill bit 66 is at a depth This is determined by determining that the measurement extension 134 has been displaced a predetermined distance. It would be good to do so.

[0080] 21A-24, a surgical handpiece before and during a drilling process. One configuration of the assembly 62 is shown. 50, a bone plate 234 is shown disposed on the outer surface of the bone 50; however, the bone plate 234 may be omitted. It is also contemplated that the drilling angle may be determined at the time of the surgical procedure. The depth-measuring extension 134 is then spaced from the bone plate 234. In FIG. 21B (corresponding to FIG. 19), the depth measuring extension 13 4 is shown in reference orientation 556. Depth measurement extension 134 is shown in FIG. When moved from the position shown in FIG. 21B to the position shown in FIG. 21B, the depth measuring extension 134 The control device 78 controls the depth measurement extension relative to the drill bit 66. A displacement signal is received in response to the displacement of the depth measurement extension 134, and the depth measurement extension 134 is in the reference orientation 556. By determining the reference orientation 556, the drilling Provides a "zero offset" or baseline for determining angles. In a configuration including a sensor 554, when a reference orientation 556 is determined, the X direction, the Y direction, and the Z direction are Generate signals corresponding to angular velocity in at least two directions (see Figures 19 and 20) Start doing it.

[0081] In FIG. 22, a surgical handpiece assembly 62 is shown at 2, but the drilling orientation 558 of the depth measurement extension 134 has not yet been determined. In FIG. 3, the depth measurement extension 134 is shown in a drilling orientation 558. When the extension 134 is moved from the position shown in FIG. 22 to the position shown in FIG. 23, the drill The control device 78 controls the depth measurement extension relative to the drill bit 66. a displacement signal corresponding to the displacement of the depth measuring extension 134; FIG. 23 illustrates a drill bit 66 drilling in a drilling orientation 558. 5, the depth measuring extension 134 is shown displaced through the proximal cortex 550. In order for the controller 78 to determine that the drill bit 66 is in the drilling orientation 558, the drill bit 66 is It is contemplated that it is not necessary to go to such depths within 66. Thus, the controller 78 determines whether the displacement of the depth measuring extension 134 relative to the drill bit 66 is greater than or equal to a predetermined value. When the displacement (e.g., 5 mm in bone 266) is exceeded, the depth measurement extension 134 moves in the direction of the drilling orientation 55 In a configuration with a gyroscope sensor 554, the gyroscope sensor 554 may determine that the Once the drilling direction 558 is determined, the roscope sensor 554 outputs a signal corresponding to the angular velocity. As previously described, the controller 78 then determines whether the reference heading 556 has been determined. integrating the angular velocity values ​​over the duration between when the drill hole orientation 558 is determined and when the drill hole orientation 558 is determined. It becomes.

[0082] In other configurations, one or both of the reference orientation 556 and the drilling orientation 558 are determined by the motor status signal The surgical handpiece assembly 62 may be determined by the state of the motor 84. and another sensor 56 configured to generate a motor condition signal to the controller 78 in response to 2 (see FIG. 4). One or both of the reference orientation 556 and the drilling orientation 558 may be When the controller 78 determines that the state of the motor 84 has changed from an idle state to a running state, In one configuration, the motor status signal may be determined by The motor 84 does not generate torque at idle and is In other configurations, the motor status signal may be used to determine the rotation of the motor 84. The motor 84 operates at a rotational speed below the rotational speed threshold when in an idle state. In one configuration, the sensor 5 is activated at other rotational speeds above the rotational speed threshold in the drive state. 62 may be an accelerometer located within the measurement module 128. Alternatively, a single sensors may be used to determine both the angular misalignment and the motor state.

[0083] In one exemplary configuration, the user drills the depth measurement extension 134 from the reference orientation 556. The drilling orientation 558 can be determined by the controller 78 controlling the motor state. By determining from the signal that the motor 84 has changed from an idle state to a running state. It would be good to confirm this.

[0084] In other configurations, one or both of the reference orientation 556 and the drilling orientation 558 may be determined by the trigger 80 ( The trigger 80 may be determined by actuation of a user input device 80 described above. Actuation of trigger 80 by a user to operate motor 84 to generate is used to generate a trigger signal to the controller 78 in response to the reference azimuth 55. 6 and / or drilling orientation 558 may be used to notify controller 78 that trigger 80 has been actuated. In one exemplary configuration, the user determines the depth measurement extension. The long portion 134 can be oriented from the reference orientation 556 to a drilling orientation 558. 58 is established when the controller 78 determines from the trigger signal that the trigger 80 has been actuated. It is determined.

[0085] In yet other configurations, one or both of the reference orientation 556 and the drilling orientation 558 may be determined by user input. The surgical handpiece assembly 62 may be determined by the above-mentioned model. The user input device 80 (trigger) used to activate the controller 84 is a separate user input device. The user input device 564 is a , coupled to a measurement head such as a module housing 130. Alternatively, a user The input device 564 may be coupled to the handpiece housing assembly 74 . The user input device 564 determines that the measurement axis MX is aligned with the reference axis RX. The first reference signal is used to determine whether the depth measurement extension 134 is in the reference orientation 556. The user may be operable to generate a signal to the controller 78. For example, the user may The fixed extension 134 is oriented in the reference orientation 556 and then a first reference signal is sent to the controller 78. activating a user input device 564 (e.g., pressing a button) to generate The controller 78 then determines that the depth measurement extension 134 is in the reference orientation 556. Similarly, the same or a second reference signal may be sent to the controller 78 to determine the drilling orientation 558. The same or another user input device may be actuated again to generate the signal.

[0086] In other configurations, one or both of the reference orientation 556 and the drilling orientation 558 are The orientation signal from the sensor 554 of 34 is held substantially constant for a predetermined duration, , the controller 78 determines that the depth measuring extension 134 is remaining stationary. In one exemplary configuration, the user may measure the depth by measuring the depth of the depth measuring extension 13. 4 can be oriented from a reference orientation 556 to a drilling orientation 558. The drilling orientation 558 is The controller 78 detects from the orientation signal that the depth measurement extension 134 has not remained stationary for more than a predetermined duration. The predetermined duration is determined by determining that the However, exemplary times are at least 3 seconds, 5 seconds, or 10 seconds.

[0087] One or both of the reference orientation 556 and the drilling orientation 558 may differ from the methods specified above. It is also contemplated that the reference orientation 556 and the drilling direction may be determined by the method. It is also contemplated that one or both of the elements 558 may be determined using a combination of the above configurations. For example, in FIG. 21A, a surgical handpiece assembly 62 is 234 and the depth-measuring extension 134 is not yet in the reference orientation 556. 21B (corresponding to FIG. 19), the depth-measuring extension 134 is positioned in a reference orientation 556 shown in FIG. 21B (corresponding to FIG. 19). After operating the surgical handpiece assembly 62 to position the reference signal to the controller 78, The user actuates the user input device 564 to generate a signal, and the controller 78 determines the reference orientation 55 6 is determined. The user then extends the depth measurement extension 134 (FIG. 19 22 (corresponding to FIG. 23) and begin drilling through the proximal cortex 550. After the lil bit 66 has been displaced beyond a predetermined displacement relative to the depth measurement extension 134, the control The position 78 determines that the drilling orientation 558 is established.

[0088] After determining the drilling angle, the controller 78 determines the drilling angle using a function that depends at least in part on the drilling angle. The compensation length can be determined by: Alternatively, the controller 78 may also depend on the calibrated screw length including the adjustment length. Determining the compensation length by using a look-up table that is at least partially dependent on the drilling angle More specifically, the look-up table may map a particular range of drilling angles to a single compensation length. In one exemplary configuration, a drilling angle between 0° and 10° is For drilling angles of 10° or more and less than 45°, a compensation length of 1 mm is output. Drilling angles of 45° or more output a compensation length of 2 mm. Alternatively, the controller 78 may use a look-up table to determine the discrete angles. The compensation length can also be determined by interpolating between the search table. The tool is designed to perform discrete drilling so that each drilling angle value in the look-up table corresponds to a single compensation length. The value of the drilling angle is related to the compensation length, and if the observed drilling angle is within the range of two drilling angles in the search table, If the drilling angle is between the values, the control device 78 selects a compensation length between the two drilling angle values. The compensation length can be determined by interpolating the following: 1mm compensation length for 0° drilling angle and 1.5mm compensation length for 30° drilling angle Therefore, when the drilling angle is 20°, the control device 78 sets the compensation length to 1 The interpolation can be done by using a linear function as described in the example above. It is also contemplated that this may be accomplished using a function that is dependent on the drill hole angle, such as .times. ... The search table also depends on the calibrated screw length, which may include the nominal screw length or the adjusted length. The look-up tables and other computer software described herein are The memory of the module 128 or a remote device such as a tablet that communicates wirelessly with the measurement head The information may be stored in a memory associated with the

[0089] After the compensation length is determined, the controller 78 calculates the compensation length from the displacement of the depth measuring extension 134 after drilling. The nominal screw length (determined from the drilling angle) and the compensation length (determined from the drilling angle) and The adjustment length (determined during calibration for the particular type of plate 234 and screw 232) The present invention is configured to output the appropriate screw length for bone fixation depending on the length of the screw, or both of the length of the It has been made.

[0090] Referring to FIG. 25, the surgical handpiece system 60 includes a display 568. The remote device 566 is connected to the surgical handpiece assembly 62. and for generating signals to and receiving signals from the surgical handpiece assembly 62. The remote device 566 in FIG. 25 is configured as a tablet. The remote device 566 may alternatively be a smartphone, laptop, or workstation. It is also contemplated that the surgical hardware may be comprised of a computer, a display, a display unit, a display panel, a display unit ... The display 148 on the handpiece assembly 62 and the display on the remote device 566 568, one or both of which may be used to determine the appropriate screw length, compensation length, adjustment length, nominal screw length, etc. The length, the displacement of the depth measuring extension 134, the drilling angle, the particular plate 234 used, The particular type of screw 232 being used, and other components associated with the surgical handpiece system 60 One or more of the information may be output.

[0091] In one configuration, one or both of the surgical handpiece assembly 62 and the remote device 566 include: A user input device (not shown) for entering or selecting information for the controller 78. The user can select a compensation or adjustment length to compensate for the nominal screw length. Instead of the calibrated screw length, you can also enter or select the angle drilling factor. The controller 78 may then determine the nominal stroke (determined from the displacement of the depth measuring extension 134 after drilling). Clew length (comparison for the particular type of plate 234 and screw 232 selected) Based on the adjustment length (determined at the midline) and the inclination drilling factor entered / selected by the user The device may be configured to determine an appropriate screw length based on the appropriate screw length. The length of the tube is displayed on the display 148 on the surgical handpiece assembly 62 and on the remote device 50. The image may be output to one or both of the displays 568 on 66 .

[0092] The term "include, includes, including" is used interchangeably with "comprise, comp It is further understood that the term "United States" has the same meaning as the term "United States"; The terms "first," "second," "third," etc., are used herein as used herein. In the specification, for purposes of clarity and consistency, but not for limitation, certain structural features and It is to be understood that the term "component" is used to identify components. In this application, including the following definitions: The term "controller" is substituted for the term "circuit." The term "controller" refers to an application specific integrated circuit (ASIC). );Digital, Analog, or Mixed Analog / Digital Discrete Circuits;Digital, Analog or mixed analog / digital integrated circuits; combinational logic circuits; field programmable FPGAs; processor circuits that execute code (shared, dedicated, or group; memory circuits (shared, dedicated) for storing code executed by the processor circuits any other suitable hardware component or group that provides the above functionality; or Refers to or is part of a combination of any or all of the above, such as a system-on-a-chip; or This includes them.

[0093] The controller may include one or more interface circuits. The interface circuit or circuits may be connected to a local area network (LAN) or is a wired or wireless internet that is connected to a wireless personal area network (WPAN). An example of a LAN is the WIFI wireless network interface. (also known as IEEE Standard 802.11-2016) and IEEE Standard 802.3- (also known as the ETHERNET wired networking standard) An example of a WPAN is the Bluetooth Special Interest Group's BLUETOOTH® wireless networking standard and IEEE Standard 802 .15.4 is one example.

[0094] The control device communicates with other control devices using one or more interface circuits. Controllers are depicted in this disclosure as being in direct logical communication with other controllers. Although the present disclosure is not intended to be limiting, in various embodiments, the control devices may be configured to actually communicate over a communication system. The communication system may be configured as follows: hubs, switches, routers, gateways In some embodiments, the network may include physical and / or virtual network devices such as: The communication system may be connected to a wide area network (WAN) such as the Internet or For example, a communication system may be a multi-protocol label switch. using technologies including MPLS and Virtual Private Networks (VPNs) A large number of LANs connected to each other via the Internet or point-to-point leased lines Contains AN.

[0095] In various embodiments, the functionality of the control device is implemented by multiple control devices connected via a communication system. For example, multiple control devices may be distributed by a load balancing system. In a further example, the functionality of the controller may be implemented in a separate device (remote or cluster). A server (also known as a web) controller and a client (or user) controller. It may be divided between

[0096] Some or all of the hardware functions of the control unit are implemented using I EE Standard 1364-2005 and IEEE Standard 107 (commonly known as "VHDL") The hardware may be defined using a language for hardware description such as 6-2008. A language for describing hardware is used to manufacture and / or program hardware circuits. In some embodiments, some or all of the features of the control device are implemented using the code and methods described below. IEEE 1666 (commonly called "SystemC"), which includes both a -2005.

[0097] The term code above refers to software, firmware, and / or microcode. and programs, routines, functions, classes, data structures, and / or objects. The term shared processor circuit refers to a processor that executes some or all of the code from multiple controllers. The term group processor circuit includes a single processor circuit that performs additional A processor circuit for transmitting some or all of the code from one or more control devices. References to multiple processor circuits include processor circuits on a discrete die. Multiple processor circuits on a single die, multiple processor circuits on a single die, Multiple cores of a single processor circuit, multiple threads of a single processor circuit, or a combination thereof. The term shared memory circuit refers to a circuit that stores some or all of the code from multiple controllers. The term group memory circuit includes a single memory circuit that includes additional memory and A memory circuit that stores some or all of the code from one or more controllers in combination. Contains:

[0098] The term memory circuit is a subset of the term computer-readable medium. The term computer readable medium as used herein refers to a medium that is transmitted (e.g., by a carrier wave). It does not include any propagating transient electrical or electromagnetic signals. The term body may be considered as a non-transient tangible medium. Non-limiting examples of data-readable media include non-volatile memory circuits (e.g., flash memory circuits). , erasable programmable read-only memory circuit, or mask read-only memory circuit), Volatile memory circuits (e.g., static random access memory circuits or dynamic random access memory circuits), magnetic storage media (e.g., analog or digital magnetic tapes or hard disk drives), and optical storage media (CD, DVD, or Blu-ray discs Examples include:

[0099] The apparatus and methods described herein may be implemented using one or more A dedicated program created by configuring a general-purpose computer to perform a specific function of The above-mentioned functional blocks and flows are implemented in part or entirely by a computer. The chart elements act as software specifications and are not part of the daily routine of a skilled engineer or programmer. It can be converted into a computer program depending on the business.

[0100] The computer program is stored on at least one non-transitory computer readable medium. The computer program also includes processor-executable instructions stored in a The computer program contains or depends on the data stored in the computer. Basic Input / Output System (BIOS) that interacts with the computer's hardware; device drivers that interact with specific devices in the computer; one or more operating systems , user applications, background services, background applications This includes, among others.

[0101] The computer program is (i) HTML (HyperText Markup Language), X ML (Extensible Markup Language) or JOSN (JavaScript Object Notation) (ii) assembly code; (iii) a description of the (iv) Object code produced from source code by an interpreter; (v) source code compiled and executed by a just-in-time compiler; By way of example only, the source code may be in the following languages: For example, C, C++, C#, Objective-C, Swift, Haskell, Go, SQL, R, Lisp, Java (R) , Fortran, Perl, Pascal, Curl, OCaml, JavaScript (R) , HTML5 (HyperText Markup Language) Work-up Language 5th Edition), Ada, ASP (Active Server Pages), PHP (PHP: HyperText Transfer Protocol) preprocessor), Scala, Eiffel, Smalltalk, Erlang, Ruby, Flash (R) , VisualBa sic (R) , Lua, MATLAB®, SIMULINK®, and Python (R) Languages ​​containing It is recommended that the description be written using the .

[0102] Several configurations have been discussed above. However, the configurations discussed in this specification They are not intended to be exhaustive or to limit the present invention to any particular form. The terminology used is intended to be descriptive rather than limiting. Many modifications and variations are possible in light of the above teachings. It is possible and the invention may be practiced in ways other than as specifically described.

[0103] The invention is intended to be defined in the independent claims, with particular features disclosed in the dependent claims. The subject matter of a claim that is dependent on one independent claim may be implemented in conjunction with other independent claims. good.

[0104] This disclosure also includes the following clauses, the specific features of which are disclosed in the sub-clauses, which are incorporated herein by reference in their entirety. The present invention may be specifically embodied as described in detail below with reference to the accompanying drawings and the like.

[0105] [Article I] Surgical handpiece capable of determining drill depth for orthopedic implant set 1. A system for calibrating a sensor system, comprising: A drill bit is attached to the depth measuring extension and used to drill holes in bone. the surgical handpiece system configured to determine bone thickness at a time; and determining an adjustment value for an orthopedic implant set using said surgical handpiece system. a calibration fixture configured to engage the depth measuring extension, defining a receiver configured to receive a surgical screw of the orthopedic implant set; a housing for connecting the calibration fixture to the surgical handpiece system; a distal face of the surgical handpiece system for axial fixation relative to the handpiece; a housing having a first end configured as a housing member movably coupled to the housing and adapted to move axially relative to the housing; The slider is configured to: a proximal surface configured to engage the depth measuring extension of a stem and a surgical screw; and a second surface configured to adjust the depth of the depth measuring extension based on the displacement of the depth measuring extension. The slider and a calibration fixture comprising: A system comprising:

[0106] [Article II] the surgical handpiece system being releasably coupled to the calibration fixture. The system described in I.

[0107] [Article III] The surgical handpiece system includes a body of the surgical handpiece system, the body being removably connected to the surgical handpiece system. a measurement module coupled thereto, the measurement module including the depth measurement extension; The system of any of clauses I-II.

[0108] [Article IV] The system of claim III, wherein the measurement module comprises a display.

[0109] [Article V] The measurement module comprises a memory for storing the adjustment value. The system described in

[0110] [Article VI] The measurement module is configured to output a nominal screw length based on the adjustment value. 3. The system of claim 2, wherein

[0111] [Article VII] The opening to the receptacle is on the distal face of the housing and is a shaped prosthesis intended for use in surgery. Configured to receive a surgical screw through a surgical plate of a surgical implant set 4. The system of claim 3, wherein

[0112] [Article VIII] The system of any of clauses I-VII, wherein the calibration fixture is cylindrical.

[0113] [Article IX] The system of any of clauses I-VIII, wherein the calibration fixture is T-shaped.

[0114] [Clause X] The system of claim IV, wherein the measurement module comprises a processor.

[0115] [Article XI] The surgical handpiece system can be operated in multiple modes, including a drilling mode and a calibration mode. 4. The system of claim X, configured to operate

[0116] [Article XII] The processor receives a nominal size of a surgical screw from a user and measures the depth of the screw by measuring the depth of the screw. Any of Articles X-XI, which is structured to determine the adjustment amount by subtracting the quantile of The system described in

[0117] [Article XIII] The display is configured to provide the displacement value to a user, and the measurement module Clause X-10, comprising a user interface configured to receive adjustments from a user; The system according to any one of claims 1 to 11.

[0118] [Article XIV] The surgical handpiece system includes a calibration position for the surgical handpiece system. a sensor assembly configured to detect the presence of the calibration fixture in , A system according to any one of clauses I-XIII.

[0119] [Article XV] The sensor is configured to sense a magnet connected to the housing of the calibration fixture. The system of claim XIV, comprising a magnetoresistive sensor formed thereon.

[0120] [Article XVI] Sensor assemblies include mechanical buttons, RFID chips, key handles, proximity sensors, or a capacitance sensor, and the calibration fixture is adapted to measure the capacitance of the surgical handpiece system. and configured to transmit and receive signals when in a calibration position. Tem.

[0121] [Article XVII] The processor outputs a nominal size of a surgical screw to be used with the calibration fixture. The system of any of clauses X-XIII, configured to:

[0122] [Article XVIII] Integral to the surgical handpiece system or a processor integrated into the measurement module removably coupled to the a sensor for receiving sensor data from the sensor assembly and detecting a change in a detected value based on the sensor data; The system of claim XIV, configured to automatically enter a calibration mode.

[0123] [Article XIX] The processor measures the nominal size of the surgical screw, the distance between the housing / body of the calibration fixture, the distance from the distal end of the surgical handpiece system to the distal end of the surgical handpiece system, the length of the slider, and Clause X is further configured to determine an adjustment value based on the displacement of the depth measuring extension. The system described in

[0124] [Article XX] The housing defines a receptacle for receiving a surgical screw. The system of any of clauses I-XIX, wherein the system is offset from the extension.

[0125] [Article XXI] Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A system for calibrating a system, comprising: When equipped with a depth measuring extension and a drill bit is attached and used to drill bone the surgical handpiece system configured to determine bone thickness; a surgical handpiece system for determining adjustments for an orthopedic implant set; a calibration fixture configured to engage the depth measuring extension, the calibration fixture comprising: , a housing, the housing comprising: The surgical screw of the orthopedic implant set is displaced from the depth measurement extension. a first receiving portion configured to receive A housing of the calibration fixture is axially fixed to the surgical handpiece system. a proximal side configured to approach a distal side of the surgical handpiece system to and, a second receiver configured such that a distal end of the receiver abuts a distal end of the depth measurement extension; wherein the adjustment value is based on the displacement of the depth measuring extension; and a calibration fixture defining A system comprising:

[0126] [Article XXII] A depth measuring extension is provided to allow for determining the drill depth for the orthopedic implant set. 1. A method for calibrating a surgical handpiece system comprising: entering a calibration mode for the surgical handpiece system; Align the slider in the housing adjacent to the depth measurement extension of the surgical handpiece system. abutting a housing of the calibration fixture to the surgical handpiece system as follows: Select surgical screws and plates from the orthopedic implant set to be used in your next surgery. selecting The depth measuring extension is adapted to move relative to the body of the surgical handpiece system. Inserting the screw through the surgical plate into the receptacle defined by the housing. P and For surgical handpiece systems, Nominal size of surgical screw provided by manufacturer of orthopedic implant set or Adjustment values ​​for surgical screws and plates, outputting the displacement by a surgical handpiece; The displacement output by a surgical handpiece system is calculated from the nominal size of the surgical screw. Subtract The adjustment value is determined by and The bone was drilled using a surgical handpiece system, and the bone thickness was calculated from the displacement of the depth measurement extension. obtaining said Based on the bone thickness and the determined adjustment or nominal size of the screw used for calibration displaying a recommended size of a surgical screw; A method comprising:

[0127] [Article XXIII] The recommended size is the nominal screw value that is closest to the bone thickness plus an adjustment. Method according to claim XII.

[0128] [Article XXIV] The recommended size for the surgical handpiece system is greater than the bone thickness plus the adjustment value. The method according to claim XXII, which is the nominal screw value.

[0129] [Article XXV] Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A method for calibrating a system, comprising: Identifying a nominal surgical screw size by the surgical handpiece system; , Steps for selecting a specified nominal size surgical screw from an orthopedic implant set P and Selecting a surgical plate from the orthopedic implant set for an upcoming surgery. and, The depth measuring extension of the surgical handpiece system is defined by the housing of the calibration fixture. The housing of the calibration fixture is attached to the surgical handpiece system so as to be inserted into the space defined by the abutting the The surgical screw is inserted through the surgical plate into the space defined by the housing of the calibration fixture. Inserting into the second space; Depth measurement extension for surgical handpiece system with calibration fixture or surgical screw and A surgical handpiece system detects the presence of the calibration fixture and, in response, enters a calibration mode. inputting a code; Adjustment determined based on nominal surgical screw size and displacement of impacted depth measuring extension and Drilling a bone using a surgical handpiece system to obtain a bone thickness; A stage that outputs the recommended surgical screw size based on the bone thickness and the determined adjustment value. Top and A method comprising:

[0130] [Article XXVI] The adjustment value is determined by measuring the distance between the distal end of the calibration fixture and the surgical handpiece system. The distance to the contact point between the The method of claim XXV, further based on a distance from the distal end of the depth measuring extension to the distal end of the depth measuring extension.

[0131] [Article XXVII] The recommended size output for surgical screws is determined when the adjustment value is less than 4 mm. The method according to any one of clauses XXV-XXVI,

[0132] [Article XXVIII] The surgical screws identified have a nominal size between 24 mm and 36 mm. A method according to any one of claims XXV-XXVII.

[0133] [Article XXIX] The surgical handpiece system will display the recommended size closest to the bone thickness plus an adjustment value. The method according to any one of clauses XXV-XXVII,

[0134] [Clause XXX] The surgical handpiece system should use a recommended size that is greater than the bone thickness plus an adjustment value. Displaying the method described in any one of clauses XXV-XXVIII.

[0135] [Article XXXI] The sensing step includes a step of sensing a magnetic field from a magnet in the calibration fixture in a surgical handpiece system. The method according to any one of clauses XXV-XXX,

[0136] [Article XXXII] Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A method for calibrating a system, comprising: Providing a block having a plate surface; Selecting an orthopedic implant set for surgery, comprising: the kit includes a depth gauge calibrated to the set; selecting a surgical plate to be implanted from a set of orthopedic implants; 2. Placing the opening in the surgical plate over the opening in the calibration block and abutting the block against the plate. positioning the sensor so as to inserting a depth gauge through an opening in the calibration block and plate; Obtain the adjustment value by subtracting the thickness of the block from the value marked on the depth gauge. Steps and Drilling a bone using a surgical handpiece system to obtain a bone thickness; Steps to calculate the recommended size for a surgical screw based on bone thickness and adjustment value P and A method comprising:

[0137] [Article XXXIII] Clause X further includes the step of inputting the determined adjustment value into the surgical handpiece system. The method according to claim XXII.

[0138] [Article XXXIV] A surgical handpiece that identifies the recommended screw size that most closely matches the bone thickness plus an adjustment. Any of Articles XXXII-XXXIII further comprising the step of preparing a peace system. The method according to any one of the preceding claims.

[0139] [Article XXXV] A surgical handpiece that identifies the recommended screw that is greater than the bone thickness plus an adjustment value Any of clauses XXXII-XXXIII, further comprising the step of preparing a The method described.

[0140] [Article XXXVI] The surgical procedure is based on the bone thickness adjustment and the area of ​​the patient where the screw is to be implanted. Any of clauses XXXII-XXXIII, further comprising the step of selecting a screw for The method according to

[0141] [Article XXXVII] Selecting the surgical screw for implantation that most closely matches the surgical screw size The method according to any one of clauses XXXII-XXXIII, further comprising:

[0142] [Article XXXVIII] A surgical handpiece system for determining the appropriate screw length for bone fixation with bone plates. a stem that determines an initial stem position based on an orientation of the surgical handpiece system during the drilling process; 1. A surgical handpiece system for compensating for a clew length value, comprising: A surgical handpiece assembly comprising: Handpiece housing and a motor disposed within the handpiece housing and configured to generate torque; a depth measuring extension movably coupled to the handpiece housing; a coupling chuck coupled to the motor and configured to receive torque from the motor; a sensor configured to generate an orientation signal in response to an orientation of the depth measuring extension; a surgical handpiece assembly comprising: A signal is received from the sensor, and an appropriate script for bone fixation is selected based on the signal from the sensor. a controller configured to determine a queue length; A surgical handpiece system comprising:

[0143] [Article XXXIX] The sensors consist of an accelerometer, a gyroscope sensor, and a stereoscope sensor. At least one sensor selected from the group consisting of: Surgical handpiece system.

[0144] [Clause XL] The depth measurement extension defines a measurement axis, and the depth measurement extension is configured such that the measurement axis is defined by the bone plate. The reference axis that passes through the hole is aligned with the reference direction and the measurement axis of the depth measurement extension. The drilling direction can be moved by the user between a drilling angle inclined to the axis and a controlled The device is (i) receiving an orientation signal from a sensor of the depth measurement extension in a borehole orientation; (ii) determining a drilling angle of the depth measurement extension based on the orientation signal from the sensor; (iii) determining the compensation length according to the drilling angle; (iv) determining the appropriate screw length for bone fixation based on the compensation length; A surgical handpiece according to any one of clauses XXXVIII-XXXIX, Dopiece system.

[0145] [Article XXI] The sensor consists of a gyroscope sensor, and the orientation signal is based on a depth measurement extension. Angular velocity values ​​corresponding to the change in orientation of the depth measurement extension when moving from the reference orientation to the drilling orientation. The controller calculates the depth measurement extension by integrating the angular velocity values ​​over a period of time. determining a drilling angle of the portion, the duration beginning when the reference orientation is established; The surgical handpiece system of claim XL, wherein the system terminates when the drilling orientation is determined.

[0146] [Article XLII] The connecting chuck is connected to the connecting chuck, and is configured to receive torque from the motor via the connecting chuck. The drill bit further includes a depth measuring extension adapted to measure the change in the drill bit during the drilling process. a displacement sensor configured to generate a displacement signal to a controller in response to a reference position; At least one of the orientations selected from the orientation and the drilling orientation is determined by the control device (i) detecting a displacement signal. (ii) determining that the drill bit has been displaced a predetermined distance relative to the depth measurement extension. The surgical handpiece according to any of the clauses XL-XLI is determined by specifying system.

[0147] [Article XLIII] The drill bit includes a drill bit axis, the drill bit axis being in communication with the measurement axis of the depth measurement extension. 4. A surgical handpiece system as described in clause XLII, wherein the surgical handpiece system is aligned in a straight line.

[0148] [Article XLIV] A sensor configured to generate a motor status signal to a controller in response to a status of the motor. At least one of the orientations selected from the reference orientation and the drilling orientation is controlled by a motor. The controller determines that the state of the engine has changed from an idle state to a drive state. 4. A surgical handpiece system as described in any one of clauses XL-XLII as defined in claim 3.

[0149] [Article XLV] The motor condition signal includes the torque produced by the motor, the motor being idle In the driving state, no torque is generated, and in the driving state, a torque is generated. The surgical handpiece system.

[0150] [Article XLVI] The motor status signal includes the rotation speed of the motor, and the motor rotates at idle. The device operates at rotational speeds below the rotational speed threshold and operates at other rotational speeds above the rotational speed threshold in the driving state. 4. The surgical handpiece system of claim XLIV, wherein the surgical handpiece system operates at 40.degree.

[0151] [Article XLVII] At least one of the orientations selected from the reference orientation and the drilling orientation is detected by the sensor of the depth measurement extension. The controller determines that the heading signal from the target has remained constant for a predetermined period of time. A surgical handpiece system according to any one of clauses XL-XLI, .

[0152] [Article XLVIII] The surgical handpiece assembly further comprises a user input device, the user input device comprising: Ensure that the measurement axis is aligned with the reference axis and that the depth measurement extension is in the reference orientation. and operable to generate a first reference signal to the control device to determine A surgical handpiece system as described in any one of claims 1 to 5, wherein:

[0153] [Article XLIX] The drilling orientation is determined by actuation of a user input device to generate a second reference signal. , the control device (i) receives a second reference signal after receiving the first reference signal; and (ii ) determining that the depth measuring extension is in a drilling orientation, ndpiece system.

[0154] [Clause L] The surgical handpiece assembly further comprises a trigger, the trigger being adapted to be triggered by a user. Controls the trigger signal to operate the motor and generate torque according to the operation of the trigger At least one of the orientations selected from the reference orientation and the drilling orientation is generated by the device, and a trigger is determined by the control device determining that it has been activated by the user; -A surgical handpiece system according to any one of the XLI.

[0155] [Clause LI] The compensation length is selected using a function that depends on the drilling angle, as specified in any of the clauses XL-L. The surgical handpiece system.

[0156] [Clause LII] Any of clauses XL-L, in which the compensation length is selected using a look-up table depending on the drilling angle A surgical handpiece system as described in claim 1.

[0157] [Article LIII] A surgical handpiece system for determining the appropriate screw length for bone fixation with bone plates. a stem that determines an initial stem position based on an orientation of the surgical handpiece system during the drilling process; 1. A surgical handpiece system for compensating for a clew length value, comprising: 1. A surgical handpiece assembly comprising: A handpiece housing; a motor disposed within the handpiece housing and configured to generate torque; a coupling chuck coupled to the motor and configured to receive torque from the motor; The handpiece housing is configured to be coupled to the handpiece housing and adapted to be oriented in such a way that the handpiece housing is a sensor configured to generate an orientation signal in response thereto; a surgical handpiece assembly comprising: A signal is received from the sensor, and an appropriate script for bone fixation is selected based on the signal from the sensor. a controller configured to determine a queue length; A surgical handpiece system comprising:

[0158] [Clause LIV] 1. A method for determining an appropriate screw length for bone fixation, comprising: A handpiece housing, a motor, and an outer casing having a depth measuring extension defining a measurement axis. Providing a surgical handpiece assembly, comprising: a depth measuring extension of the drill bit connected to the drill bit; The depth is adjusted so that the measurement axis is aligned with the reference axis passing through the hole defined by the bone plate. orienting the length measuring extension in a reference orientation relative to the bone plate; activating a user input device coupled to the surgical handpiece assembly; determining that a measurement axis of the part is aligned with a reference axis; A step of orienting the depth measurement extension in the drilling direction so that the measurement axis is at an oblique angle to the reference axis. Tep and Measuring the inclination angle in the drilling direction; drilling with a drill bit through the proximal cortex of the bone toward the distal cortex of the bone; , Based on the measurement of the inclination angle of the depth measuring extension, the control device determines the correct scribing for bone fixation. determining a riu length; indicating the proper screw length for bone fixation; A method comprising:

[0159] [Clause LV] The drill bit defines a drill axis aligned with the measurement axis, and the method includes a depth measurement extension and determining a displacement of the drill bit based on relative motion between the drill bit and the The method according to clause LIV,

[0160] [Clause LVI] After the drill bit is displaced through the proximal cortex to a predetermined depth within the bone, it is tilted by the control device. The method of clause LV, further comprising the step of determining an oblique angle.

[0161] [Article LVII] 1. A method for determining an appropriate screw length for bone fixation, comprising: An external device having a handpiece housing, a motor, a depth measuring extension, and a drill bit. providing a dental handpiece assembly; Drilling a hole through the proximal cortex of the bone toward the distal cortex of the bone; measuring the bone cavity depth; Based on the measured hole depth and inclination drilling factors, the appropriate screw length for bone fixation was determined. determining indicating an appropriate screw length for bone fixation; A method comprising:

[0162] [Article LVIII] The surgical handpiece assembly further comprises a user input device, the method further comprising: Activate the user input device to determine the appropriate screw length for fixation. The method of claim LVII, further comprising the step of selecting a perforation factor.

[0163] [Article LVIX] The depth measurement extension defines a measurement axis and the drill bit has a drill axis aligned with the measurement axis. and the method includes determining a displacement of the drill bit relative to the depth measurement extension. The method of any one of clauses LVII-LVIII, further comprising the step of measuring hole depth.

[0164] [Article LX] a surgical handpiece assembly configured to couple to the orthopedic implant set; a measurement module configured to engage a calibration fixture for calibration, Housing and a depth measuring extension movably coupled to the housing; a depth measuring extension coupled to a distal portion of the housing and adapted to vary in response to movement of the depth measuring extension relative to the housing; a displacement sensor assembly configured to generate a position signal; a calibration fixture coupled to the distal portion of the housing and present in response to the presence of an emitter coupled to the calibration fixture; a presence sensor configured to generate a signal; A control device configured to receive signals from the displacement sensor assembly and the presence sensor. Placement and Equipped with The controller detects the presence of the presence sensor in order to operate the surgical handpiece system in a calibration mode. to receive a signal from the calibration fixture to determine that the calibration fixture is engaged with the distal portion of the housing. and wherein the surgical handpiece system is in a calibration mode and the displacement sensor assembly is determining an adjustment value for the orthopedic implant set using the displacement signal received from the controller; , the measurement module being configured to store the adjustment value in a memory.

[0165] [Article LXI] Surgical handpiece system with depth measurement extension for orthopedic implant set A calibration assembly for calibrating, comprising: A housing having a body, the body having a first opening at a distal end of the body and a second opening at a proximal end of the body. a second opening in the first direction and a lumen extending through the body in fluid communication with the first and second openings. The lumen receives a surgical screw of the orthopedic implant set through the first opening. and configured to receive a depth measurement extension of a surgical handpiece system through the second opening. a proximal end of the housing adapted to receive the surgical handpiece system; configured to engage a distal surface of a surgical handpiece to axially constrain the stem. The housing, a housing member that is movably coupled to the housing and that is at least partially movable relative to the housing within the lumen; a slider configured to move axially in a surgical handpiece system; a proximal surface configured to engage a depth measuring extension of the surgical screw; and a distal surface configured to: a slider configured to be displaced within the lumen by a surgical screw. and, Equipped with A calibration assembly in which the adjustment value of the orthopedic implant set is determined based on the displacement of the slider. Yellowtail.

Claims

1. Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A system for calibrating a system, comprising:

1. A surgical handpiece system comprising: A first housing; a depth measuring extension movably coupled to the first housing; a probe coupled to the first housing and adapted to generate a signal in response to displacement of the depth measuring extension; A displacement sensor assembly configured as follows: a surgical handpiece system comprising: the surgical handpiece system for determining adjustments to the orthopedic implant set; a calibration fixture configured to engage the depth measuring extension of a lumen configured to receive a surgical screw of the orthopedic implant set; a second housing for fixing the second housing to the first housing; the first housing of the surgical handpiece system for axially constraining the a second housing having a proximal end configured to engage the distal surface; a second housing of the calibration fixture, the second housing being movably coupled to the second housing; a slider configured to move axially relative to the surgical handpiece; a proximal surface configured to engage the depth measurement extension of the system; a slider having a distal surface configured to engage the screw; a calibration fixture comprising: Equipped with The adjustment value of the orthopedic implant set is determined by a signal from the displacement sensor assembly and The system is determined based on a nominal size of the surgical screw.

2. The surgical handpiece system further comprises a processor, the processor being configured to: a displacement sensor assembly configured to receive a displacement signal from the displacement sensor assembly, the processor The surgical handpiece system is compared when determining the adjustment value of a surgical implant set. The system of claim 1 configured to operate in a positive mode.

3. One of the surgical handpiece system and the calibration fixture includes a presence sensor, The other of the surgical handpiece system and the calibration fixture includes an emitter, and the presence sensor the second housing of the calibration fixture is in front of the surgical handpiece system. a first housing having a distal portion and a second ... proximal portion and a distal portion of the first housing. The processor is configured to receive the signal from the presence sensor and perform the calibration. A fitting engages the distal portion of the first housing of the surgical handpiece system. and operating the surgical handpiece system in the calibration mode. The system of claim 2 , configured as follows:

4. The processor receives the signals from the presence sensor and the displacement sensor assembly. and when at least one adjustment parameter selected from the group of adjustment parameters is satisfied 4. The method of claim 3, further comprising: determining the adjustment value for the orthopedic implant set. The system described in

5. The set of adjustment parameters is determined by the calibration fixture being configured to calibrate the set of adjustment parameters of the surgical handpiece system. a position of the depth measuring extension engaging the distal portion of the first housing; the depth being held constant relative to the first housing over a duration of time; a position of the length measuring extension relative to the first housing of the surgical handpiece system; The system of claim 4 , further comprising:

6. The emitter comprises a magnet, and the presence sensor is responsive to a magnetic field from the magnet. A system according to any one of claims 3 to 5, configured to generate said signal.

7. The system of claim 6 , wherein the presence sensor comprises a magnetoresistive sensor.

8. The processor may further include a processor for adjusting the external The dental handpiece system is configured to operate in a drilling mode.

8. A system according to any one of claims 7 to 7.

9. The surgical handpiece system includes a surgical handpiece assembly and a surgical handpiece. and a measurement module configured to be coupled to the handpiece assembly, The measurement module includes the first housing, the depth measurement extension, and the displacement sensor assembly. The system of any one of claims 1 to 8, further comprising:

10. The surgical handpiece system according to any one of claims 1 to 9, further comprising a display.

2. The system according to claim 1 ,

11. The display may inform the user that the adjustment values ​​for the orthopedic implant set have been determined. The system of claim 10 configured to prompt a user.

12. 10. The surgical handpiece system of claim 1, further comprising a memory for storing the adjustment value. -11. A system according to any one of claims 1 to 11.

13. The second housing of the calibration fixture has a distal opening in fluid communication with the lumen. a distal opening defining a distal surface of the housing, the distal opening being adapted to allow the surgical screw to enter the lumen; a surgical plate for the orthopedic implant when the distal surface of the slider is engaged at the a surgical screw receiving hole configured to receive the surgical screw through the surgical hole; The head is configured to abut against the surgical plate, the surgical plate being The distal end of the second housing is disposed at the distal end of the second housing when the adjustment value of the orthopedic implant set is determined. The system of any preceding claim, configured to abut a surface.

14. The second housing of the calibration fixture has a proximal opening in fluid communication with the lumen. a proximal opening defined in a proximal surface of the housing of the slider, the proximal opening being configured to allow the depth measurement extension to pass through the slider; wherein the proximal surface of the probe is adapted to receive the depth measurement extension when the proximal surface of the probe engages the depth measurement extension. The system according to any one of claims 1 to 13.

15. The system of any preceding claim, wherein the second housing is T-shaped.

16. Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A system for calibrating a system, comprising:

1. A surgical handpiece system comprising: Housing and a depth measuring extension movably coupled to the housing; a distal end of said housing connected to said distal portion of said housing, said depth measuring extension being movable relative to said housing; a displacement sensor assembly configured to generate a displacement signal in response to the movement of the sensor; a processor configured to receive the signal from the displacement sensor assembly; a surgical handpiece system comprising: a surgical handpiece system having a distal end engaged with the housing; a calibration fixture configured to engage the depth measuring extension of a handpiece system; and Equipped with One of the surgical handpiece system and the calibration fixture includes a presence sensor, The other of the surgical handpiece system and the calibration fixture includes an emitter, and the presence sensor The calibration fixture is disposed at the distal end of the housing of the surgical handpiece system. configured to generate a signal in response to the presence of the emitter when engaged with a portion of the a processor for receiving the signal from the presence sensor and detecting whether the calibration fixture is in contact with the surgical hand; determining that the surgical piece system is engaged with the distal portion of the housing; a surgical handpiece system configured to operate in a calibration mode; the signal from the displacement sensor assembly while the base system is in the calibration mode and Based on the nominal size of the surgical screw, an adjustment value for the orthopedic implant set is determined. The system.

17. The processor receives the signals from the presence sensor and the displacement sensor assembly. and when at least one adjustment parameter selected from the group of adjustment parameters is satisfied.

13. The method of claim 1, further comprising:

7. The system described in 6.

18. The set of adjustment parameters is determined by the calibration fixture being configured to calibrate the set of adjustment parameters of the surgical handpiece system. a depth measuring extension engaging the distal portion of the housing; said depth measurement being held constant relative to said first housing over time; The extension has a range of positions relative to the first housing of the surgical handpiece system. The system of claim 17 , comprising:

19. The emitter comprises a magnet, and the presence sensor is responsive to a magnetic field from the magnet. A system according to any one of claims 16 to 18, configured to generate said signal. Hmm.

20. 20. The system of claim 19, wherein the presence sensor comprises a magnetoresistive sensor. 。

21. The processor may further include a processor for adjusting the external 17. The dental handpiece system of claim 16, wherein the dental handpiece system is configured to operate in a piercing mode. -20. A system according to any one of claims 1 to 20.

22. The surgical handpiece system includes a surgical handpiece assembly and a surgical handpiece. and a measurement module configured to be coupled to the handpiece assembly, The fixed module includes the housing, the depth measuring extension, and the displacement sensor assembly. The system of any one of claims 1 to 21, comprising:

23. The surgical handpiece system of any one of claims 1 to 22, further comprising a display.

2. The system according to claim 1 .

24. The display may inform the user that the adjustment values ​​for the orthopedic implant set have been determined.

24. The system of claim 23, configured to prompt a user.

25. 10. The surgical handpiece system of claim 1, further comprising a memory for storing the adjustment value. -24. A system according to any one of claims 1 to 24.

26. Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A method for calibrating a system, comprising: a first housing and a depth measuring extension movable relative to the first housing; A surgical handpiece system, a second housing defining a lumen and a second housing disposed within the lumen. a slider at least partially movable relative to the second housing by a Providing a fixture; selecting a surgical screw having a nominal size from said orthopedic implant set; P and A step of selecting a surgical plate from the orthopedic implant set for use in a next surgery. Top and The depth measuring extension of the surgical handpiece system is attached to the slider of the calibration fixture. and engaging the Inserting the surgical screw through the surgical plate and attaching the head of the surgical screw abuttingly engaging a head against the surgical plate; engaging the slider of the calibration fixture with the surgical screw; engaging a distal surface of the second housing with the surgical plate; The depth measuring extension of the surgical handpiece system is attached to the slider of the calibration fixture. and a step of pushing the The adjustment value of the orthopedic implant set is determined based on the nominal size of the surgical screw and the determining a depth based on the displacement of the plunged depth measuring extension, and A calibrating step; A method comprising:

27. Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A method for calibrating a system, comprising: Providing a calibration fixture and a surgical handpiece system with a displacement sensor assembly a calibration fixture and a surgical handpiece system, a sensor, and the other of the calibration fixture and the surgical handpiece system includes an emitter and A step of engaging a distal portion of the surgical handpiece system with a proximal end of the calibration fitting. Top and the calibration fitting engaging the distal portion of the surgical handpiece system; determining by the presence sensor, the surgical handpiece system , switching to a calibration mode in response to the presence sensor detecting the emitter; Steps and A scanning probe for determining the displacement of a depth measuring extension of the surgical handpiece while in the calibration mode. Tep and The adjustment value of the orthopedic implant set is calculated by the indentation depth measurement extension during the calibration mode. determining based on the displacement of the long portion; A method comprising:

28. After the adjustment values ​​for the orthopedic implant set are determined, the surgical handpiece system is 28. The method of claim 27, further comprising switching the stem to a drilling mode.

29. The orthopedic device is adapted to select a surgical screw for the procedure during the drilling mode.

29. The method of claim 28, further comprising utilizing the adjustments for a set of surgical grafts. 。

30. The emitter comprises a magnet, and the method further comprises: a presence sensor that senses a magnetic field to determine whether the distal portion of the base is engaged with the magnetic field.

30. The method of claim 29, further comprising generating a signal in response to a change in

31. Surgical handpiece capable of determining drill depth for orthopedic implant sets - Patents.com 1. A system for calibrating a system, comprising: Determining the thickness of the bone when a drill bit is attached and used to drill the bone the surgical handpiece system including a depth measurement extension configured to measure a depth of the surgical and a second orthopedic implant set for determining an adjustment value for the second orthopedic implant set. a calibration block configured to engage a depth gauge provided to the having a curved profile designed to connect to a plate from the orthopedic implant set. and one or more holes designed for the depth gauge to pass therethrough; a bottom surface having a recess intended to temporarily hold a distal portion of the depth gauge; a calibration block comprising: A system comprising:

32. 32. The method of claim 31 , wherein the calibration block has a thickness between 20 mm and 40 mm. system.

33. The calibration block is sized to be held in a user's hand. Claim 3 1-32. A system according to any one of claims 1-32.

34. Any of claims 31-33, wherein the calibration block includes two or more holes having different diameters.

2. The system according to claim 1 .

35. The curvature of the top surface of the calibration block is varied to accommodate different plate shapes. The system according to any one of claims 31 to 34.

36. A surgical handpiece system for determining the appropriate screw length for bone fixation with bone plates. a stem that is initially adjusted based on an orientation of the surgical handpiece system during a drilling process; 1. A surgical handpiece system for compensating for a screw length value, comprising:

1. A surgical handpiece assembly comprising: A handpiece housing; a motor disposed within the handpiece housing and configured to generate a torque; With a depth measuring extension movably coupled to the handpiece housing; a sensor configured to generate an orientation signal responsive to an orientation of the depth measuring extension; 、 a surgical handpiece assembly comprising: a motor connected to the surgical handpiece assembly and adapted to receive torque from the motor; a drill bit configured to receive the drill bit; receiving the signal from the sensor and determining a pre-fixation step for bone fixation based on the signal from the sensor; a processor configured to determine the appropriate screw length; A surgical handpiece system comprising:

37. The sensors include an accelerometer, a gyroscope sensor, and a stereoscope sensor.

37. The surgical handpiece of claim 36, comprising at least one selected sensor. Dopiece system.

38. The depth measurement extension defines a measurement axis, the depth measurement extension being configured such that the measurement axis is aligned with the bone plate. a reference orientation aligned with a reference axis through the hole defined by the rate; The measurement axis of the fixed extension is inclined relative to the reference axis with respect to the drilling orientation. a processor that is movable by a user, (i) receiving the orientation signal from the sensor of the depth measurement extension in the drilling orientation; Faith (ii) determining the drilling angle of the depth measurement extension based on the orientation signal from the sensor. death, (iii) determining a compensation length according to the drilling angle; (iv) determining an appropriate screw length for bone fixation based on the compensation length; The surgical handpiece system according to any one of claims 36 to 37, Hmm.

39. The sensor comprises a gyroscope sensor, and the orientation signal is a change in orientation of the depth measuring extension as the extension moves from the reference orientation to the drilling orientation; a corresponding angular velocity value, the processor integrating the angular velocity values ​​over a period of time; and configured to determine the drilling angle of the depth measurement extension by dividing the The duration begins when the reference orientation is established and ends when the drilling orientation is established.

40. The surgical handpiece system of claim 38.

40. The depth measuring extension adjusts the depth of the drill bit in response to displacement of the drill bit during the drilling process. a displacement sensor configured to generate a displacement signal to a sensor for detecting the reference orientation and the forward orientation; At least one of the orientations selected from the aforementioned drilling orientations is selected by the processor (i) (ii) receiving a position signal indicating that the drill bit is positioned a predetermined distance relative to the depth measurement extension; 40. The surgical handpiece of claim 38, wherein the determination is made by determining that the surgical handpiece is displaced. system.

41. configured to generate a motor status signal to the processor in response to a status of the motor a sensor for detecting at least one of the orientations selected from the reference orientation and the drilling orientation; At least one of the processors detects a change in the state of the motor from an idle state to a driven state.

39. The surgical handpiece system of claim 38, wherein the determination is made by determining that Stem.

42. The motor condition signal includes a torque produced by the motor. does not generate torque in the idle state and generates torque in the driving state.

42. The surgical handpiece system of claim 41 .

43. The motor status signal includes a rotational speed of the motor, and the motor is In the idle state, the rotation speed is less than a threshold rotation speed.

42. The surgical handpiece system of claim 41, wherein the surgical handpiece system is operated at other rotational speeds that exceed the speed threshold. Stem.

44. At least one of the orientations selected from the reference orientation and the drilling orientation is The sensor detects whether the orientation signal from the sensor of the depth measuring extension is constant over a predetermined time. This is established by determining that the 39. The surgical handpiece of claim 38. system.

45. The surgical handpiece assembly further comprises a user input device, The apparatus is adapted to ensure that the measurement axis is aligned with the reference axis and that the depth measurement extension is generating a first reference signal to the processor to determine whether the vehicle is in the reference orientation; 40. The surgical handpiece system of claim 38, operable to:

46. The drilling orientation is determined by actuation of the user input device generating a second reference signal. the processor (i) receiving the second reference signal after receiving the first reference signal; and (ii) determining that said depth measurement extension is in said drilling orientation. A surgical handpiece system as described herein.

47. The surgical handpiece assembly further comprises a trigger, the trigger being adapted for actuation by a user. a trigger for actuating the motor to generate torque in response to actuation of the trigger by a trigger switch; generating a trigger signal to the processor and detecting a pre-orientation selected from the reference orientation and the drilling orientation; At least one of the directions is determined by the processor when the trigger is activated by the user.

40. The surgical handpiece of claim 38, wherein the determination is made by determining that the system.

48. 48. The method of claim 38, wherein the compensation length is selected using a function that depends on the drilling angle. A surgical handpiece system according to any one of the preceding claims.

49. 38. The compensation length is selected using a look-up table that is dependent on the drilling angle. -47. A surgical handpiece system according to any one of claims 1 to 47.

50. The drill bit includes a drill bit shaft, the drill bit shaft being configured to extend along the depth measuring axis.

50. The surgical instrument of claim 38, wherein the longitudinal axis is aligned with the measurement axis. Handpiece system.

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