# US 2026/0090899 A1 · Telemetry trial for digital implant

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- Number: US 2026/0090899 A1
- Document ID: US20260090899A1
- Status: Published application
- Kind: A1
- Application number: 19/272,557
- Filed: 2025-07-17
- Published: 2026-04-02
- Earliest claimed: 2024-09-30
- Assignees: Warsaw Orthopedic, Inc.
- Applicants: Warsaw Orthopedic, Inc.
- Inventors: Kevin T. Foley, M.D.; Steven D. Glassman, M.D.; Adam D. Glaser; Newton H. Metcalf, JR.; Jerald L. Redmond
- Web page: https://patentgrep.com/patent/US20260090899A1

## CPC

- A61F 2/468: {Testing instruments for artificial joints (for testing non-implantable prostheses A61F2/76)}
- A61B 17/7032: {Screws or hooks with U-shaped head or back through which longitudinal rods pass}
- A61B 17/7074: {Tools specially adapted for spinal fixation operations other than for bone removal or filler handling (A61B17/7062, A61B17/808, A61B17/8858 take precedence; for spinal image producing devices A61B90/36, A61B34/20; markers A61B90/39)}
- A61F 2/4657: {Measuring instruments used for implanting artificial joints (for surgical instruments A61B90/06)}
- A61F 2/4684: {Trial or dummy prostheses}
- A61B 2017/00022: {Sensing or detecting at the treatment site}
- A61B 2017/00084: {Temperature}
- A61B 2017/00221: {with wireless transmission of data, e.g. by infrared radiation or radiowaves}
- A61B 2017/00424: {ergonomic, e.g. fitting in fist}
- A61B 2017/00455: {Orientation indicators, e.g. recess on the handle}
- A61B 2017/00681: {Aspects not otherwise provided for}
- A61B 2090/0807: {Indication means}
- A61F 2002/4632: {using computer-controlled surgery, e.g. robotic surgery}
- A61F 2002/4658: {for measuring dimensions, e.g. length}
- A61F 2002/4662: {for measuring penetration depth}
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Devices and methods for trial-fitting smart medical implants are disclosed. A trial fitting device for a smart implant includes a handle, a shaft extending from the handle, a head portion attached to the shaft such that the head portion rotates with the shaft, and a rotational indicator disposed on the shaft and/or the handle, the rotational indicator configured to indicate a rotational orientation of the head portion. The trial fitting device further includes a telemetry gauge disposed on the shaft and/or the handle, the telemetry gauge configured to indicate a threshold distance from the head portion.

## Claims

### Claim 1

A trial fitting device for a smart implant, the device comprising:
a handle;
a shaft extending from the handle;
a head portion attached to the shaft such that the head portion rotates with the shaft;
a rotational indicator disposed on the shaft and/or the handle, the rotational indicator configured to indicate a rotational orientation of the head portion; and
a telemetry gauge disposed on the shaft and/or the handle, the telemetry gauge configured to indicate a threshold distance from the head portion.

### Claim 2 (depends on 1)

The trial fitting device of claim 1, wherein the head portion is shaped and dimensioned to correspond with a smart implant.

### Claim 3 (depends on 2)

The trial fitting device of claim 2, wherein the head portion includes a visual cue of where a longitudinal rod would interface with the smart implant.

### Claim 4 (depends on 1)

The trial fitting device of claim 1, wherein the telemetry gauge is configured to indicate a depth of tissue that permits effective telemetry from a smart implant in the position and orientation of the head portion.

### Claim 5 (depends on 4)

The trial fitting device of claim 4, wherein the telemetry gauge is configured to indicate a range of distances indicating a range of tissue depths that permit effective telemetry, the range of distances based on a parameter of the tissue.

### Claim 6 (depends on 1)

The trial fitting device of claim 1, further comprising a transmitter disposed in the head portion, the transmitter configured to transmit a test signal.

### Claim 7 (depends on 6)

The trial fitting device of claim 6, further comprising a control configured to cause the transmitter to transmit the test signal.

### Claim 8 (depends on 6)

The trial fitting device of claim 6, wherein the transmitter is configured to transmit the test signal at one of at least two different strengths.

### Claim 9 (depends on 1)

The trial fitting device of claim 1, wherein the handle and the shaft share a longitudinal axis.

### Claim 10 (depends on 1)

The trial fitting device of claim 1, wherein the handle comprises an ergonomic grip.

### Claim 11 (depends on 1)

The trial fitting device of claim 1, wherein the rotational indicator is etched into the handle.

### Claim 12 (depends on 1)

The trial fitting device of claim 1, wherein the head portion is shaped and dimensioned to correspond with an interbody device.

### Claim 13

A method of trial-fitting an implant, the method comprising:
receiving a trial-fitting tool comprising:
a handle;
a shaft extending from the handle;
a head portion attached to the shaft such that the head portion rotates with the shaft, the head portion shaped and dimensioned to correspond with a smart implant;
a rotational indicator disposed on the shaft and/or the handle, the rotational indicator configured to indicate a rotational orientation of the head portion; and
a telemetry gauge disposed on the shaft and/or the handle, the telemetry gauge configured to indicate a threshold distance from the head portion;
using the handle of the trial-fitting tool to:
position the head portion at a trial location for an implant; and
adjust, as needed, the position and orientation of the head portion to fit available space;
confirming, using the rotational indicator, that the head portion has a desired orientation; and
confirming, using the telemetry gauge, that a point of incision is within the threshold distance from the head portion to the point of incision; and
installing the implant in place of the trial-fitting tool.

### Claim 14 (depends on 13)

The method of claim 13, further comprising, in response to the head portion not fitting at the trial location, using a trial-fitting tool having a second head portion, the second head portion shaped and dimensioned to correspond with a second smart implant, to position the second head portion at the trial location.

### Claim 15 (depends on 14)

The method of claim 14, wherein using the trial-fitting tool having the second head portion comprises replacing the head portion of the trial-fitting tool with the second head portion.

### Claim 16 (depends on 13)

The method of claim 13, wherein:
the trial-fitting tool further comprises a transmitter disposed in the head portion and configured to transmit a test signal; and
the method further comprises, while the head portion is positioned at the trial location, causing the transmitter to transmit the test signal.

### Claim 17 (depends on 13)

The method of claim 13, further comprising:
assessing attenuation characteristics of the tissue between the head portion and the telemetry gauge; and
wherein confirming that the point of incision is within the threshold distance is based on the assessed attenuation characteristics.

### Claim 18 (depends on 13)

The method of claim 13, wherein positioning the head portion at the trial location comprises positioning the head portion by a surgical navigation robot.
