# US 11,992,424 B2 · Measurement system for a selection of at least one prosthetic component of a shoulder joint during surgery

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,992,424 B2
- Document ID: US11992424B2
- Status: Granted
- Kind: B2
- Application number: 16/951,771
- Filed: 2020-11-18
- Published: 2021-05-13
- Granted: 2024-05-28
- Earliest claimed: 2018-10-05
- Assignees: Howmedica Osteonics Corp.; Exactech, Inc.
- Applicants: Chris Roche; Alexander Greene; Jonathan Trousdale; Joseph DeCerce
- Inventors: Chris Roche; Alexander Greene; Jonathan Trousdale; Joseph DeCerce
- Web page: https://patentgrep.com/patent/US11992424B2

## CPC

- A61B 5/0031: {Implanted circuitry}
- A61F 2/4657: {Measuring instruments used for implanting artificial joints (for surgical instruments A61B90/06)}
- A61B 5/1122: {of movement trajectories}
- A61B 5/1126: {using a particular sensing technique}
- A61B 5/4571: {Evaluating the hip}
- A61B 5/4576: {Evaluating the shoulder}
- A61B 5/4851: {Prosthesis assessment or monitoring}
- A61B 5/686: {Permanently implanted devices, e.g. pacemakers, other stimulators, biochips (A61B5/6861 takes precedence)}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61F 2/30749: {Fixation appliances for connecting prostheses to the body}
- A61F 2/40: for shoulders
- A61F 2/4014: {Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts}
- A61F 2/4612: {of shoulders}
- A61F 2/4684: {Trial or dummy prostheses}
- A61F 2/488: {Means for detecting or monitoring wear}
- A61B 2562/0252: Load cells
- A61B 2562/04: Arrangements of multiple sensors of the same type
- A61F 2002/302: {toroidal, e.g. rings}
- A61F 2002/30245: {Partial spheres}
- A61F 2002/30649: {Ball-and-socket joints}
- A61F 2002/4007: {implanted without ablation of the whole natural humeral head}
- A61F 2002/4022: {having a concave shape, e.g. hemispherical cups}
- A61F 2002/4037: {Connections of heads to necks}
- A61F 2002/4085: {having a convex shape, e.g. hemispherical heads}
- A61F 2002/4633: {for selection of endoprosthetic joints or for pre-operative planning}
- A61F 2002/4666: {for measuring force, pressure or mechanical tension}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A selection system comprises a ring, a plurality of shims, a measurement device, and at least one glenoid component. The ring is configured to couple to a humerus. A shim of the plurality of shims is configured to couple to the ring. The measurement device is configured to couple to the shim. Each shim of the plurality of shims has a different height when coupled to the ring. The selection system generates measurement data to support the selection of at least one prosthetic component for a shoulder joint in a surgical environment. The shoulder joint geometry can be adjusted by changing shims, changing glenoid component or both. The selection system is removed after the selection of the final prosthetic components for the shoulder joint. The final prosthetic components are installed in the shoulder joint. The measurement device is placed in the shoulder joint and measurement data is generated to verify performance.

## Claims

### Claim 1

A method, comprising:
performing a resection of a first bone of a shoulder joint of a patient to produce a resected surface;
coupling a coupling device directly to the resected surface,
wherein the coupling device is coupled to the resected surface using at least one of at least one nail or at least one screw;
coupling a prosthetic device to a second bone of the shoulder joint,
wherein the second bone is opposite the first bone;
coupling a measurement device directly to the coupling device,
wherein the measurement device includes an external surface that is configured to articulate with the prosthetic device;
moving the shoulder joint through a range of motion,
wherein the measurement device measures at least one force within the shoulder joint while the shoulder joint is moved through the range of motion; and
selecting at least one of (a) the prosthetic device that is coupled to the second bone of the shoulder joint or (b) a further prosthetic device configured to be coupled to the first bone of the shoulder joint based at least on the measured at least one force.

### Claim 2 (depends on 1)

The method of claim 1, wherein the coupling device comprises a ring.

### Claim 3 (depends on 2)

The method of claim 2, wherein a bottom surface of the ring is co-planar to a bottom surface of the measurement device when the measurement device is coupled to the coupling device.

### Claim 4 (depends on 1)

The method of claim 1, wherein the measurement device comprises a plurality of sensors located at radial positions relative to an external curved surface.

### Claim 5 (depends on 1)

The method of claim 1, wherein the prosthetic device is selected if the measured at least one force is above a predetermined threshold, and wherein the further prosthetic device is selected if the measured at least one force is below the predetermined threshold.

### Claim 6 (depends on 1)

The method of claim 1, wherein the prosthetic device is selected if the measured at least one force is below a predetermined threshold, and wherein the further prosthetic device is selected if the measured at least one force is above the predetermined threshold.

### Claim 7 (depends on 6)

The method of claim 6, wherein the prosthetic device is an on-lay humeral prosthetic component, and wherein the further prosthetic device is an in-lay humeral prosthetic component.

### Claim 8 (depends on 7)

The method of claim 7, wherein the predetermined threshold is 20 pounds.

### Claim 9 (depends on 1)

The method of claim 1, wherein the first bone is a humerus.

### Claim 10 (depends on 1)

The method of claim 1, wherein the step of coupling the coupling device directly to the resected surface further comprises coupling the coupling device to the resected surface using a canal rod.

### Claim 11 (depends on 1)

The method of claim 1, further comprising:
removing the measuring device from the coupling device;
coupling a liner to the coupling device; and
placing the measuring device in the joint to record verification data.