# US 10,441,292 B2 · Clip device for endoscope

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- Number: US 10,441,292 B2
- Document ID: US10441292B2
- Status: Granted
- Kind: B2
- Application number: 15/516,144
- Filed: 2015-09-25
- Published: 2017-10-19
- Granted: 2019-10-15
- Earliest claimed: 2014-10-24
- Assignees: Kaneka Corporation
- Applicants: Kaneka Corporation
- Inventors: Masato Tsueda; Yuki Mukai; Naotake Maekubo
- Web page: https://patentgrep.com/patent/US10441292B2

## CPC

- A61B 17/083: {Clips, e.g. resilient}
- A61B 17/1285: {for minimally invasive surgery}
- A61B 17/10: for applying or removing wound clamps {, e.g. containing only one clamp or staple (A61B17/076 takes precedence; containing multiple wound clamps A61B17/068)}; Wound clamp magazines
- A61B 17/122: Clamps or clips, e.g. for the umbilical cord {(for the vas deferens A61F6/206)}
- A61B 17/1227: {Spring clips}
- A61B 2017/00862: {elastic or resilient}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A clip device for an endoscope of the present invention comprises an outer tubular body 70; an inner tubular body 80 provided in the outer tubular body 70; a line member 50 placed in the inner tubular body 80; and a pinching part 20, for holding an indwelling clip, connected to a distal side of the line member 50; wherein the pinching part 20 has two pinching base plates 30a and 30b, a blade part 40a is provided at a distal end of the pinching base plate 30a and formed toward an inside of the pitching base plate 30a, a blade part 40b is provided at a distal end of the pinching base plate 30b and formed toward an inside of the pinching base plate 30b, a Young's modulus of the blade part 40a is smaller than that of the pinching base plate 30a, and a Young's modulus of the blade part 40b is smaller than that of the pinching base plate 30b.

## Claims

### Claim 1

A clip device for an endoscope comprising:
an outer tubular body;
an inner tubular body provided in the outer tubular body;
a line member placed in the inner tubular body;
a pinching part for holding an indwelling clip, a proximal end of the pinching part connected to a distal side of the line member; and
an indwelling clip for holding a target site, the indwelling clip held by the pinching part, wherein
the pinching part has two pinching base plates,
each of the two pinching base plates has a blade at a distal end, each of said blades extending toward an inside of the respective pinching base plate, so that the indwelling clip is held by the blades of the pinching part,
a Young's modulus of the blades is smaller than that of the pinching base plates, each of the pinching base plates has a principal surface extending from the proximal end toward each of the blades in a longitudinal direction and having a width in a direction perpendicular to the longitudinal direction, and
a width of each of the blades is smaller than the width of the pinching base plates in the wide direction perpendicular to the longitudinal direction.

### Claim 2 (depends on 1)

The clip device for an endoscope according to claim 1, wherein
the blade provided on a tip of one of the pinching base plate and the blade provided on a tip of the other pinching base plate are alternately arranged.

### Claim 3 (depends on 1)

The clip device for an endoscope according to claim 1, wherein for each of the pinching base plates, an angle between the pinching base plate and the blade at the distal end of the pinching base plate is larger than 90° and smaller than 180°.

### Claim 4 (depends on 1)

The clip device for an endoscope according to claim 1, wherein for each of the pinching base plates, the pinching base plate and the blade at the distal end of the pinching base plate are integrally formed.

### Claim 5 (depends on 1)

The clip device for an endoscope according to claim 1, wherein the blades are composed of a Ni—Ti ahoy or a stainless steel.

### Claim 6 (depends on 1)

The clip device for an endoscope according to claim 1, further comprising
a first handle connected to a proximal side of the inner tubular body and being movable in the axial direction with respect to the outer tubular body, and
a second handle connected to a proximal side of the line member and being movable in the axial direction with respect to the outer tubular body.

### Claim 7 (depends on 1)

The clip device for an endoscope according to claim 1, wherein a length of each of the blades is not more than half of an inner diameter of the inner tubular body.

### Claim 8 (depends on 1)

The clip device for an endoscope according to claim 1, wherein a thickness of each of the blades is smaller than that of each of the pinching base plates.

### Claim 9 (depends on 1)

The clip device for an endoscope according to claim 1, wherein each of the pinching base plates has a curved part which is curved toward an inside of the pinching part in at least a part of the pinching base plates.

### Claim 10 (depends on 1)

The clip device for an endoscope according to claim 1, wherein each of the blades is composed of a material different from a material of each of the pinching base plates.