# US 11,896,302 B2 · Cautery device and cautery system

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- Number: US 11,896,302 B2
- Document ID: US11896302B2
- Status: Granted
- Kind: B2
- Application number: 17/730,620
- Filed: 2022-04-27
- Published: 2022-11-03
- Granted: 2024-02-13
- Earliest claimed: 2021-04-28
- Assignees: NeuroLightech Inc.
- Applicants: NeuroLightech Inc.
- Inventors: Shinya Miike; Kazuo Shimizu
- Web page: https://patentgrep.com/patent/US11896302B2

## CPC

- A61B 18/22: the beam being directed along or through a flexible conduit, e.g. an optical fibre; {Couplings or} hand-pieces therefor
- A61B 18/24: with a catheter (A61B18/26, A61B18/28 take precedence)
- A61B 18/203: {applying laser energy to the outside of the body}
- A61B 2018/00452: {Skin}
- A61B 2018/00595: {Cauterization}
- A61B 2018/00636: {Sensing and controlling the application of energy}
- A61B 2018/1807: {using light other than laser radiation}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A cautery device for biological tissue, includes: a probe including a head unit that is configured to be inserted into a living body to emit light to cauterize the biological tissue, the head unit including a first fixing member, a second fixing member, and an exit hole, the exit hole being located between the first fixing member and the second fixing member, the exit hole allowing the light to be emitted therethrough; and an elongated catheter configured to sandwich the biological tissue between the probe and the catheter, to thereby support the biological tissue, the catheter including a third fixing member configured to fix the first fixing member and a fourth fixing member configured to fix the second fixing member.

## Claims

### Claim 1

A cautery device for biological tissue, comprising:
a probe including a head unit, the head unit being configured to be inserted into a living body to emit light for cauterizing the biological tissue, the head unit including a first fixing member, a second fixing member, an exit hole, and a first reflector, the exit hole being located between the first fixing member and the second fixing member, the exit hole allowing the light to be emitted therethrough; and
an elongated catheter configured to sandwich the biological tissue between the probe and the catheter, to thereby support the biological tissue, the catheter including a third fixing member configured to fix the first fixing member and a fourth fixing member configured to fix the second fixing member,
wherein the head unit has a hollow body and the first reflector is arranged along an inner surface of the hollow body and operates to reflect light that enters the head unit.

### Claim 2 (depends on 1)

The cautery device according to claim 1, wherein the first fixing member and the third fixing member attract each other through a magnetic force, and the second fixing member and the fourth fixing member attract each other through a magnetic force.

### Claim 3 (depends on 1)

The cautery device according to claim 1, wherein the catheter further includes a reflector disposed between the third fixing member and the fourth fixing member, the reflector being configured to reflect light emitted through the exit hole, toward the biological tissue.

### Claim 4 (depends on 1)

The cautery device according to claim 1, wherein the catheter further includes an optical sensor configured to detect light emitted through the exit hole.

### Claim 5 (depends on 4)

A cautery system for biological tissue, comprising:
the cautery device according to claim 4;
a light source device configured to produce light to be emitted through the exit hole; and
a controller configured to control an intensity of light produced by the light source device according to an illuminance of the light detected by the optical sensor.

### Claim 6 (depends on 4)

A cautery system for biological tissue, comprising:
the cautery device according to claim 4;
a light source device configured to produce light to be emitted through the exit hole; and
a controller configured to control a spectrum characteristic of the light produced by the light source device according to a spectrum characteristic of the light detected by the optical sensor.