# US 10,864,008 B2 · Curved resectoscope

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

- Number: US 10,864,008 B2
- Document ID: US10864008B2
- Status: Granted
- Kind: B2
- Application number: 16/027,038
- Filed: 2018-07-03
- Published: 2019-05-23
- Granted: 2020-12-15
- Earliest claimed: 2017-11-20
- Applicants: Parviz Yavari; Morteza Yavari
- Inventors: Parviz Yavari; Morteza Yavari
- Web page: https://patentgrep.com/patent/US10864008B2

## CPC

- A61B 17/320016: {Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes (A61B10/0233, A61B17/29, A61B17/3207 take precedence)}
- A61B 18/14: Probes or electrodes therefor
- A61B 18/149: {bow shaped or with rotatable body at cantilever end, e.g. for resectoscopes, or coagulating rollers}
- A61B 2018/00517: {Urinary bladder or urethra}
- A61B 2018/00547: {Prostate}
- A61B 2018/00601: {Cutting}
- A61B 2018/1407: {Loop}
- A61B 2090/3614: {using optical fibre}
- A61B 2217/005: with suction drainage system
- A61B 2217/007: with irrigation system
- A61B 2218/002: Irrigation
- A61B 2218/007: Aspiration
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A resectoscope having a curved sheath that can be made with different lengths, diameters and radii of curvature to better reach the areas of the bladder that are not accessible with a conventional resectoscope. The device is equipped with a fiber optic scope that follows the curved electrode tube and can transmit images for observing the interior of bladder where the surgical procedure is performed. The device of the present invention further comprises a modified obturator to facilitate the movement of the sheath inside the body, and interior guides on the sheath help move the cutting tool and obturator through the curved portions of the sheath.

## Claims

### Claim 1

A resectoscope comprising:
an optical fiber assembly;
an irrigation port and channel from a main housing to a distal end;
an electrified cutting loop assembly;
a sliding block controlling a position of the electrified cutting loop assembly; and
a sheath having a straight proximal section and a curved distal portion, the sheath comprising guides along an inner surface for guiding a movement of the electrified cutting loop assembly through the curved distal portion of the sheath;
wherein the guides comprise ridges longitudinally extending along an inner surface of the sheath, the electrified cutting loop assembly comprising clips that engage the ridges to position the electrified cutting loop assembly within the sheath; and
wherein the electrified cutting loop assembly loop assembly includes two arms that connect to opposite sides of the sheath using said clips.

### Claim 2 (depends on 1)

The resectoscope of claim 1, wherein the optical fiber assembly includes an optical cable at least partially embedded in a ridge formed on the inner surface of the sheath.

### Claim 3 (depends on 1)

The resectoscope of claim 1, wherein the optical fiber assembly includes an optical cable that is enclosed in a flexible tube within the sheath.

### Claim 4 (depends on 1)

The resectoscope of claim 1, wherein the optical fiber assembly includes an optical cable with a plurality of clips that engage a ridge on the inner surface of the sheath.

### Claim 5 (depends on 1)

The resectoscope of claim 1, wherein the ridges are diametrically opposed and the clips are X shaped.

### Claim 6 (depends on 1)

The resectoscope of claim 1, further comprising an obturator having longitudinal channels arranged to receive the ridges therein.