Use of micro- and miniature position sensing devices for use in tka and tha

• US 10,080,509 B2
• Filed: 11/24/2016
• Issued: 09/25/2018
• Est. Priority Date: 04/08/2003
• Status: Active Grant

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Inventors: Wasielewski, Ray C.
• Primary Examiner(s): Philogene, Pedro
• Assistant Examiner(s): Comstock, David C
• Application Number:
  US15/361,051
• Publication Number:
  US 20170071503A1
• Time in Patent Office: 670 Days
• Field of Search: 606 62, 606 82, 606 87, 606 88, 606 86 R, 606 96, 606102, 623 2014, 623 2021, 623 2032, 623 2035, 623 224, 623 2243, 623 2315, 623 2339, 623923
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/1707 using electromagnetic effects, e.g. with magnet and external sensors
• CPC Class Codes: A61B 17/1717 for applying intramedullary nails or pins
• CPC Class Codes: A61B 17/1746 for the acetabulum
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/72 Intramedullary pins, nails or other devices A61B17/744 takes precedence
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 2090/365 augmented reality, i.e. correlating a live optical image with another image
• CPC Class Codes: A61B 2090/3958 emitting a signal
• CPC Class Codes: A61B 2090/397 electromagnetic other than visible, e.g. microwave
• CPC Class Codes: A61B 2090/3975 active
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/067 using accelerometers or gyroscopes
• CPC Class Codes: A61F 2/30723 : Plugs or restrictors for sealing a cement-receiving space tools for inserting plugs A61F2/4614; sealing collars for use during cementing A61B17/8808
• CPC Class Codes: A61F 2/36 : Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/367 : Proximal or metaphyseal parts of shafts trochanteric devices connected to said proximal parts A61F2/30739
• CPC Class Codes: A61F 2/3672 : Intermediate parts of shafts
• CPC Class Codes: A61F 2/38 : for elbows or knees
• CPC Class Codes: A61F 2/3859 : Femoral components
• CPC Class Codes: A61F 2/389 : Tibial components A61F2/3868 takes precedence
• CPC Class Codes: A61F 2/4603 : for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4607 : of hip femoral endoprostheses
• CPC Class Codes: A61F 2/4609 : of acetabular cups
• CPC Class Codes: A61F 2/4657 : Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• CPC Class Codes: A61F 2/4684 : Trial or dummy prostheses
• CPC Class Codes: A61F 2002/3067 : for data transfer
• CPC Class Codes: A61F 2002/3625 : Necks
• CPC Class Codes: A61F 2002/3631 : with an integral complete or partial peripheral collar or bearing shoulder at its base
• CPC Class Codes: A61F 2002/4619 : for extraction
• CPC Class Codes: A61F 2002/4658 : for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2002/4668 : for measuring angles
• CPC Class Codes: A61F 2002/4696 : optical
• CPC Class Codes: A61F 2250/0002 : for data transfer

Abstract

A system for assisting in a surgical process, comprising: (a) a surgical device taken from a group consisting of a surgical tool and a surgical implant; (b) a positional sensor carried by the surgical device, the positional sensor including a wireless transmitter and associated circuitry for transmitting sensor data from the transmitter; and (c) a computer system including a wireless receiver and signal conditioning circuitry and hardware for converting sensor data received by the wireless receiver into at least one of (i) audio feedback of positional information for the surgical device and (ii) visual feedback of positional information for the surgical device.

Claims

1. A surgical telemetry system comprising:

a cutting jig adapted to be secured to a bone, the cutting jig having at least one cut slot for guiding a tool in altering the bone;

at least one sourceless sensor mounted to the cutting jig, the sensor outputting data representative at least of an orientation of the at least one cut slot relative to the bone;

a digital processing device operatively coupled to the sensor to receive data derived from the data output from the sensor, the digital processing device generating a display output indicative of an orientation of the at least one cut slot relative to the bone; and

a display operatively coupled to the digital processing device and adapted to receive the display output, where the display output displays the change in orientation of the at least one cut slot relative to the bone.

2. The surgical telemetry system of claim 1, wherein the cutting jig is at least one of an intramedullary femoral and tibial cutting jig, and an extramedullary femoral and tibial cutting jig.

3. The surgical telemetry system of claim 1, wherein the at least one sensor is operatively coupled to a remote transmitter adapted to transmit signals indicative of sensor output as an orientation of the at least one cut slot changes;

and the digital processing device is operatively coupled to a receiver adapted to receive transmission signals from the remote transmitter;

wherein the digital processing device generates display instructions for displaying the orientation of the cut slot relative to the bone.

4. The surgical telemetry system of claim 1, wherein the system is adapted for use with total knee arthroplasty.

5. The surgical telemetry system of claim 1, wherein the cutting jig has four of the cut slots.

6. The surgical telemetry system of claim 1, wherein the sensor includes at least one of an accelerometer and a gyroscope.

7. The surgical telemetry system of claim 1, further comprising:

a saw having a reference sourceless sensor generating data representative of an orientation of the saw, and

wherein the digital processing device is operatively coupled to the reference sensor to receive data derived from the data output from the reference sensor, the digital processing device generating the display output indicative of an orientation of the saw relative to the bone.

8. The surgical telemetry system of claim 7, wherein the reference sourceless sensor includes at least one of an accelerometer and a gyroscope.

9. The surgical telemetry system of claim 1, wherein the display and the digital processing device are located remotely from the patient.

10. The surgical telemetry system of claim 1, wherein the cutting jig has a guide rod configured for being inserted in an intramedullary hole in a bone.

11. The surgical telemetry system of claim 10, further comprising:

a second tool having a reference sourceless sensor generating data representative of an orientation of the second tool, the second tool configured to define the intramedullary hole to receive the cutting jig;

wherein the digital processing device is operatively coupled to the reference sensor to receive data derived from the data output from the reference sensor, the digital processing device generating the display output indicative of an orientation of the second tool relative to the bone.

12. The surgical telemetry system of claim 11, wherein the digital processing device is operatively coupled to the second tool to control an operation of the second tool, the digital processing device automatically stopping or slowing the second tool if the orientation of the second tool is outside a predetermined tolerance.

13. The surgical telemetry system of claim 11, wherein the digital processing device generates the display output indicative of depth of the second tool in the bone.

14. The surgical telemetry system of claim 11, wherein the digital processing device is operatively coupled to the second tool to control an operation of the second tool, the digital processing device automatically stopping or slowing the second tool if the depth of the second tool is at or approaching an intended depth.

15. The surgical telemetry system of claim 11, wherein the second tool is at least one of a drill and a intramedullary locator tool.

16. The surgical telemetry system of claim 1, further comprising:

a prosthetic trial component having a reference sourceless sensor generating data representative of an orientation of the prosthetic trial component, the prosthetic trial component configured for being releasably mounted to the bone after use of the tool and of the cutting jig;

wherein the digital processing device is operatively coupled to the reference sensor to receive data derived from the data output from the reference sensor, the digital processing device generating the display output indicative of at least one of an orientation of the prosthetic trial component relative to the bone, and of a range of motion of a prosthetic joint corresponding to the prosthetic trial component.

17. The surgical telemetry system of claim 16, further comprising:

a bone sourceless sensor configured for being mounted to the bone and generating data representative of an orientation of the bone;

wherein the digital processing device is operatively coupled to the bone sourceless sensor to receive data derived from the data output from the bone sourceless sensor, the digital processing device generating the display output indicative of a position between the prosthetic trial component and the bone.

18. The surgical telemetry system of claim 1, further comprising:

a prosthetic component having a reference sourceless sensor generating data representative of an orientation of the prosthetic component, the prosthetic component configured for being mounted to the bone after use of the tool and of the cutting jig;

wherein the digital processing device is operatively coupled to the reference sensor to receive data derived from the data output from the reference sensor, the digital processing device generating the display output indicative of at least one of an orientation of the prosthetic component relative to the bone, of a range of motion of a prosthetic joint formed with the prosthetic component, and of a kinematic function of the prosthetic joint formed with the prosthetic component.