ACTIVE SPINE INSERT INSTRUMENT FOR PROSTHETIC COMPONENT PLACEMENT

• US 20130079678A1
• Filed: 09/23/2011
• Published: 03/28/2013
• Est. Priority Date: 09/23/2011
• Status: Abandoned Application

• Current Assignee: OrthoSensor, Inc (Stryker Corporation)
• Original Assignee: OrthoSensor, Inc (Stryker Corporation)
• Inventors: Stein, Marc, Chase, Andrew U.
• Application Number:
  US13/242,678
• Publication Number:
  US 20130079678A1
• Time in Patent Office: Days
• US Class Current: 600/594
• CPC Class Codes: A61B 17/025 Joint distractors
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00482 with a code
• CPC Class Codes: A61B 2017/0256 for the spine
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/2048 using an accelerometer or inertia sensor
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 5/103 Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes A61B5/08 takes precedence; measuring aids for tailors A41H1/00; measuring instruments specially adapted for dentistry A61C19/04
• CPC Class Codes: A61B 5/1036 Measuring load distribution, e.g. podologic studies
• CPC Class Codes: A61B 5/1071 measuring angles, e.g. using goniometers A61B5/1123 takes precedence
• CPC Class Codes: A61F 2/4455 for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2/4684 Trial or dummy prostheses
• CPC Class Codes: A61F 2002/30607 Kits of prosthetic parts to be assembled in various combinations for forming different prostheses
• CPC Class Codes: A61F 2002/30616 Sets comprising a plurality of prosthetic parts of different sizes or orientations
• CPC Class Codes: A61F 2002/4632 using computer-controlled surgery, e.g. robotic surgery
• CPC Class Codes: A61F 2002/4662 for measuring penetration depth
• CPC Class Codes: A61F 2002/4666 : for measuring force, pressure or mechanical tension
• CPC Class Codes: A61F 2002/4667 : for measuring torque
• CPC Class Codes: A61F 2002/4668 : for measuring angles
• CPC Class Codes: A61F 2310/00023 : Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A spine measurement system comprises a spinal instrument, alignment circuitry, insert instrument, and a remote system. The insert instrument comprises a handle, a shaft, and a module. The insert instrument can be used to retain, direct, and place a prosthetic component in a spinal region. The module includes an electronic assembly for receiving, processing, and sending data from the insert instrument. The module includes alignment circuitry for providing trajectory, alignment, and position information on the placement of the prosthetic component. A GUI of remote system can display a workflow and report the trajectory, alignment, and position information of insert instrument during different steps of the workflow. The system allows accurate placement of a prosthetic component in a previously probed region.

Claims

1. A spine measurement system for the muscular-skeletal system comprising:

an insert instrument including an electronic assembly configured to support placement of a prosthetic component in a spinal region where the electronic assembly includes alignment circuitry configured to provide quantitative data on location and position of the insert instrument; and

a remote system having a display configured to receive and display quantitative data from the insert instrument.

2. The system of claim 1 further including a spinal instrument having at least one load sensor for measuring a load applied by the spinal region.

3. The system of claim 2 where the alignment circuitry comprises at least one accelerometer.

4. The system of claim 3 where the prosthetic component couples to the insert instrument and where the location and position data corresponds to the prosthetic component.

5. The system of claim 4 where the insert instrument comprises:

a shaft;

a tip coupled to the distal end of the shaft for retaining and releasing a prosthetic component;

an attach/release mechanism coupled to a proximal end of the shaft;

a handle coupled to the shaft; and

the electronic assembly.

6. The system of claim 5 where the electronic assembly is housed in the handle.

7. The system of claim 6 where the electronic assembly includes communication circuitry for wirelessly coupling to the remote system for providing real-time visualization of the location and position of the insert instrument.

8. The system of claim 7 where the tip of the insert instrument can retain and release a spinal cage.

9. The system of claim 8 where a trajectory of the insert instrument is displayed in relation to a prior trajectory of the spinal instrument.

10. The system of claim 7 where the spinal instrument comprises:

a shaft;

a handle coupled to the proximal end of the shaft;

a sensored head coupled to a distal end of the shaft configured for insertion into the spinal region; and

electronic circuitry operatively coupled to the sensored head located in proximity to the handle.

11. The system of claim 10 where the sensored head of the spinal instrument includes a plurality of load sensors for measuring load and position of load.

15. The system of claim 7 where the tip of the insert instrument can retain and release a spinal cage.

12. An insert instrument for placing a prosthetic component in a spinal region comprising:

a shaft;

a tip coupled to the distal end of the shaft for retaining and releasing a prosthetic component;

an attach/release mechanism coupled to a proximal end of the shaft;

a handle coupled to the shaft in proximity to the proximal end of the shaft; and

an electronic assembly where the electronic assembly includes at least one accelerometer for providing quantitative data on location and position of the insert instrument.

13. The insert instrument of claim 12 where the electronic assembly is housed in the handle.

14. The insert instrument of claim 13 where the electronic assembly includes communication circuitry for wirelessly coupling to a remote system for providing real-time visualization of the location and position of the insert instrument.

16. A method of inserting a prosthetic component in a spinal region comprising the steps of:

distracting the spinal region;

directing the prosthetic component coupled to the insert instrument to the spinal region;

measuring at least one of orientation, rotation, angle, or position of the prosthetic component; and

transmitting data of the at least one of orientation, rotation, angle, or position of the prosthetic component.

17. The method of claim 16 further including a step of displaying the transmitted data on a remote system for visualizing a trajectory of the prosthetic component to the spinal region.

18. The method of claim 17 further including a step of comparing the trajectory of the prosthetic component to a prior trajectory on the remote system.

19. The method of claim 18 further including the steps of:

inserting the prosthetic component in the spinal region;

releasing the prosthetic component; and

removing the insert instrument from the spinal region.

20. The method of claim 19 further including a step of disposing of the insert instrument.