Sensor-based shoulder system and method

• US 10,188,464 B2
• Filed: 07/07/2016
• Issued: 01/29/2019
• Est. Priority Date: 07/08/2015
• Status: Active Grant

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Inventors: Britton, Orsa, Nolan, David A., Van Kampen, William
• Primary Examiner(s): Dukert, Brian
• Application Number:
  US15/204,590
• Publication Number:
  US 20170007330A1
• Time in Patent Office: 936 Days
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/4576 Evaluating the shoulder
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/4014 Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
• CPC Class Codes: A61F 2/4081 Glenoid components, e.g. 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 2002/3037 Translation along the common longitudinal axis, e.g. piston
• CPC Class Codes: A61F 2002/30566 Helical springs
• CPC Class Codes: A61F 2002/30616 Sets comprising a plurality of prosthetic parts of different sizes or orientations
• CPC Class Codes: A61F 2002/30672 temporary
• CPC Class Codes: A61F 2002/4633 for selection of endoprosthetic joints or for pre-operative planning
• CPC Class Codes: A61F 2002/4658 for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2002/4666 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61F 2002/4668 for measuring angles

Abstract

The subject matter includes a system and method for providing graphical feedback visualizing forces within a joint through a range of motion of the joint. The method can comprise receiving position data, receiving force data, and generating a graphical representation based on the position data and the force data. The receiving position data can include data for at least one bone of a joint while the at least one bone is moved through a range of motion (ROM). The receiving force data can occur concurrently to receiving the position data and using one or more processors, the force data can be collected from at least one force sensor embedded within a trial prosthesis in the joint. The graphical representation can illustrate changes in the force data versus locations of the bone as it moved through the ROM.

Claims

1. Method for providing graphical feedback visualizing forces within a joint through a range of motion of the joint, the method comprising:

receiving, using one or more processors, position data for at least one bone of the joint while the at least one bone is moved through a range of motion (ROM);

concurrently to receiving the position data, receiving, using one or more processors, force data from at least one force sensor embedded within a trial prosthesis in the joint;

generating, for display on a display device, a graphical representation based on the position data and the force data, the graphical representation illustrating changes in the force data versus locations of the bone as it moved through the ROM; and

comparing the graphical representation with pre-generated target graphical presentation to determine whether the trial prosthesis provides target joint tension throughout the range of motion.

2. The method of claim 1, further comprising, concurrently to receiving the position data, receiving strain gauge data from one or more strain gauges attached to one or more muscles or soft tissue adjacent the joint.

3. The method of claim 2, wherein the strain gauge measure muscle activation.

4. The method of claim 1, wherein receiving the position data including receiving position data provided by one or more sensors removably coupled to the at least one bone.

5. The method of claim 4, wherein the one or more sensors include at least one of an accelerometer and a gyroscope.

6. The method of claim 1, wherein the force data is received from a single force sensor embedded within a central portion of the trial prosthesis.

7. The method of claim 1, wherein the force data is received from multiple force sensors embedded within the trial prosthesis.

8. The method of claim 7, wherein the force data includes data representative of different areas of the trial prosthesis.

9. The method of claim 7, wherein the trial prosthesis is semi-hemispherical and the multiple force sensors include a first sensor receiving force data from the base of the semi-hemispherical shape and multiple additional sensors around a perimeter of the semi-hemispherical shape.

10. The method of claim 1, wherein the trial prosthesis includes a set of inserts of different sizes, wherein each insert of the set of insert includes at least one force sensor.

11. The method of claim 1, wherein the trial prosthesis includes an insert fitted with a sensor module to generate force data representative of the tension within the joint.

12. The method of claim 11, wherein the insert includes an articular surface to engage a mating articular surface on a second prosthesis or native bone of the joint.

13. The method of claim 11, wherein the insert includes a piston portion that compresses in response to forces exerted on at least a portion of an articular surface.

14. The method of claim 13, wherein the force data is received from a sensor module detecting movements in the piston portion.

15. The method of claim 13, wherein the piston portion includes a spring to keep the articular surface engaged with a mating articular surface on a second prosthesis or native bone of the joint.

16. Method for providing graphical feedback visualizing forces within a joint through a range of motion of the joint, the method comprising:

receiving, using one or more processors, position data for at least one bone of the joint while the at least one bone is moved through a range of motion (ROM);

concurrently to receiving the position data, receiving, using one or more processors, force data from at least one force sensor embedded within a trial prosthesis in the joint; and

generating, for display on a display device, a graphical representation based on the position data and the force data, the graphical representation illustrating changes in the force data versus locations of the bone as it moved through the ROM,

wherein the trial prosthesis includes an insert fitted with a sensor module to generate force data representative of the tension within the joint, the insert including a piston portion that compresses in response to forces exerted on at least a portion of an articular surface.

17. The method of claim 16, wherein the insert includes an articular surface to engage a mating articular surface on a second prosthesis or native bone of the joint.

18. The method of claim 16, wherein the force data is received from a sensor module detecting movements in the piston portion.

19. The method of claim 16, wherein the piston portion includes a spring to keep the articular surface engaged with a mating articular surface on a second prosthesis or native bone of the joint.