# US 12,478,294 B1 · Tissue oximeter intraoperative system

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- Number: US 12,478,294 B1
- Document ID: US12478294B1
- Status: Granted
- Kind: B1
- Application number: 17/657,110
- Filed: 2022-03-29
- Granted: 2025-11-25
- Earliest claimed: 2009-11-23
- Assignees: ViOptix, Inc.
- Applicants: ViOptix, Inc.
- Inventors: Robert E. Lash; Scott Janis; Darius Eghbal
- Web page: https://patentgrep.com/patent/US12478294B1

## CPC

- A61B 5/14552: {Details of sensors specially adapted therefor}
- A61B 5/02427: {Details of sensor}
- A61B 5/1455: using optical sensors, e.g. spectral photometrical oximeters
- A61B 5/6843: {Monitoring or controlling sensor contact pressure}
- A61B 5/72: {Signal processing specially adapted for physiological signals or for diagnostic purposes}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 2560/0214: of power generation or supply
- A61B 2560/0425: Ergonomically shaped housings (A61B2560/0418 takes precedence)
- A61B 2562/0247: Pressure sensors
- A61B 2562/187: Strain relief means
- A61B 2562/222: Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An oximeter probe includes sensor head with a probe face having one or more sensor structures to make measurements, a handle, and an elastic member connected between the handle and the base. A user can hold the handle while measurements are made and the elastic member permits the handle to flex relative to the sensor head with one or more sensor structures.

## Claims

### Claim 1

A device comprising:
a base portion to face a tissue to be measured;
at least first, second, third, and fourth sensor structures formed on the base portion;
a handle; and
an elastic member, comprising a spring constant, coupled between the base portion and handle,
wherein the device is a tissue oximeter.

### Claim 2 (depends on 1)

The device of claim 1 wherein the first sensor structure comprises a source structure, and the second sensor structure opening comprises a detector structure.

### Claim 3 (depends on 1)

The device of claim 1 comprising:
a light emitting diode, coupled to the first sensor structure;
a photodetector, coupled to the second sensor structure; and
a battery, electrically coupled to the light emitting diode and the photodetector.

### Claim 4 (depends on 1)

The device of claim 1 comprising:
a recharger circuit, coupled to the battery, wherein the recharger circuit recharges the battery.

### Claim 5 (depends on 3)

The device of claim 3 comprising:
a processing circuit, electrically coupled to the light emitting diode, photodetector, and battery.

### Claim 6 (depends on 3)

The device of claim 3 comprising:
a processing circuit, electrically coupled to the light emitting diode, photodetector, and battery; and
a display, coupled to the processing circuit.

### Claim 7 (depends on 1)

The device of claim 1 wherein the elastic member comprises plastic.

### Claim 8 (depends on 1)

The device of claim 1 comprising a third sensor structure formed on the base portion.

### Claim 9 (depends on 1)

The device of claim 1 wherein the handle is adapted to be cradled in an area between a thumb and forefinger of a user's hand.

### Claim 10 (depends on 1)

The device of claim 1 wherein the oximeter device is a tissue oximeter.

### Claim 11 (depends on 1)

The device of claim 1 comprising:
a cable, coupled to the handle.

### Claim 12 (depends on 1)

The device of claim 1 comprising:
a cable, coupled to the handle, wherein the cable comprises a plurality of optical fibers.

### Claim 13

A device comprising:
a base portion to face a tissue to be measured;
at least first, second, third, and fourth sensor structures formed on the base portion;
a pressure sensor, coupled to the base portion;
a handle; and
an elastic member, comprising a spring constant, coupled between the base portion and handle,
wherein the device is a tissue oximeter.

### Claim 14 (depends on 13)

The device of claim 13 wherein the first sensor structure comprises a source structure, and the second sensor structure opening comprises a detector structure.

### Claim 15 (depends on 13)

The device of claim 13 comprising:
a light emitting diode, coupled to the first sensor structure;
a photodetector, coupled to the second sensor structure; and
a battery, electrically coupled to the light emitting diode and the photodetector.

### Claim 16 (depends on 15)

The device of claim 15 comprising:
a recharger circuit, coupled to the battery, wherein the recharger circuit recharges the battery.

### Claim 17 (depends on 15)

The device of claim 15 comprising:
a processing circuit, electrically coupled to the light emitting diode, photodetector, and battery.

### Claim 18 (depends on 13)

The device of claim 13 wherein the handle is adapted to be cradled in an area between a thumb and forefinger of a user's hand.

### Claim 19

A device comprising:
a base portion to face a tissue to be measured;
at least first, second, third, and fourth sensor structures formed on the base portion;
a handle;
an elastic member, comprising a spring constant, coupled between the base portion and handle;
a light emitting diode, coupled to the first sensor structure;
a photodetector, coupled to the second sensor structure;
a battery, electrically coupled to the light emitting diode and the photodetector, a processing circuit, electrically coupled to the light emitting diode, photodetector, and battery; and
a display, coupled to the processing circuit,
wherein the device is a tissue oximeter.

### Claim 20 (depends on 18)

The device of claim 18 wherein the handle is adapted to be cradled in an area between a thumb and forefinger of a user's hand.