# US 11,076,855 B2 · Partly resorbable tissue clip

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- Number: US 11,076,855 B2
- Document ID: US11076855B2
- Status: Granted
- Kind: B2
- Application number: 15/501,810
- Filed: 2015-07-30
- Published: 2017-08-17
- Granted: 2021-08-03
- Earliest claimed: 2014-08-04
- Assignees: Ovesco Endoscopy AG
- Applicants: Ovesco Endoscopy AG
- Inventors: Marc Schurr; Gunnar Anhock
- Web page: https://patentgrep.com/patent/US11076855B2

## CPC

- A61B 17/083: {Clips, e.g. resilient}
- A61B 17/064: Surgical staples, {i.e. penetrating the tissue}
- A61B 17/08: Wound clamps {or clips, i.e. not or only partly penetrating the tissue (suture bridges A61B17/0466); Devices for bringing together the edges of a wound}
- A61L 31/022: {Metals or alloys}
- A61L 31/028: {Other inorganic materials not covered by A61L31/022 - A61L31/026}
- A61L 31/06: obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(A61L31/041 takes precedence)}
- A61L 31/148: {Materials at least partially resorbable by the body}
- A61B 2017/00004: {(bio)absorbable, (bio)resorbable or resorptive}
- A61B 2017/00818: {Treatment of the gastro-intestinal system}
- A61B 2017/00893: {pharmaceutically effective}
- A61B 2017/0645: {being elastically deformed for insertion}
- A61B 2017/081: {Tissue approximator (A61B2017/1103, A61B17/8866 take precedence)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

A partly resorbable tissue clip for stapling tissue includes at least one gripping tooth that grips the tissue, at least one force deflecting element that is equipped with at least one gripping tooth, and at least one spring element that is connected to the at least one force deflecting element. The at least one gripping tooth or a portion of the at least one force deflecting element or of at least one of the force deflecting elements is made of bioresorbable material.

## Claims

### Claim 1

A partly resorbable tissue clip, comprising:
a mouth-type clamp device having an upper and a lower jaw, the clamp device being adapted to be opened and closed via a hinge or flexible molding interconnecting the upper and lower jaws to snap into a closed position by accumulated spring energy thereby generating a predefined clamping force in between,
wherein the clamp device comprises a first portion formed from non-biologically resorbable material and the first portion formed from non-biologically resorbable material is a single piece forming a closed loop,
at a middle portion of each jaw, the first portion formed from non-biologically resorbable material provides a flat force deflecting element respectively being orientated parallel to each other such that both middle portions are facing each other edgewise,
a number of gripping teeth being provided at edges of the upper and lower jaws which face each other at least in the closed position of the jaws,
wherein the gripping teeth for each jaw are integrally formed at a first plate, respectively, both the gripping teeth and the first plates being made of biologically resorbable material.

### Claim 2 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the non-biologically resorbable material is nitinol.

### Claim 3 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the first portion produced from non-biologically resorbable material is produced in an integral manner, with an injection molding, punching or laser cutting method and forms a frame construction.

### Claim 4 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the biologically resorbable material is a copolymer comprising poly lactic-co-glycolic acid (PLGA), hydroxyapatite (HPA), beta tricalcium phosphate, tricalcium phosphate (TCP) or polylactide.

### Claim 5 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein as a result of a selection of biologically resorbable material or a variation of a composition of biologically resorbable material, a time course of resorption and consequently the predefined clamping force of the tissue clip can be determined.

### Claim 6 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the biologically resorbable material contains medical active ingredients which are locally released over time by resorption of the material or diffusion from said material.

### Claim 7 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein at least one of the upper or lower jaws comprises a second portion produced from biologically resorbable material and constructed substantially as a second plate, whose longitudinal axis extends parallel with a clamping slot formed by the gripping teeth.

### Claim 8 (depends on 7)

The partly resorbable tissue clip of claim 7, wherein the second portion produced from biologically resorbable material is constructed as two flat second plates which are arranged beside each other and whose longitudinal axes extend parallel with the clamping slot formed by the gripping teeth.

### Claim 9 (depends on 7)

The partly resorbable tissue clip of claim 7, wherein the second portion produced from biologically resorbable material is held in position by at least one clip which is produced from a non-biologically resorbable material.

### Claim 10 (depends on 7)

The partly resorbable tissue clip of claim 7, wherein the second portion produced from biologically resorbable material at a side thereof facing the gripping teeth follows a curve shape of the gripping teeth, and at a side thereof facing an outer edge of the at least one of the upper or lower jaws, the second portion follows a shape of a nearest outer edge of the at least one of the upper or lower jaws.

### Claim 11 (depends on 1)

The partly resorbable tissue clip according to claim 1, wherein the first plates are integrally formed and are fixed to the force deflecting elements in a planar manner.

### Claim 12 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the plates and the force deflecting elements comprise projections and/or rejections being adapted to interconnect each other to provide a form-interlock when the plates are mounted at the force deflecting elements, respectively.

### Claim 13 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein the plates and the force deflecting elements are connected to each other by welding.

### Claim 14 (depends on 1)

The partly resorbable tissue clip of claim 1, wherein each flat force deflecting element is formed as a curved plate.