# US 8,541,641 B2 · Aid for prevention of wound dehiscence

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- Number: US 8,541,641 B2
- Document ID: US8541641B2
- Status: Granted
- Kind: B2
- Application number: 13/258,779
- Filed: 2011-06-03
- Published: 2012-12-06
- Granted: 2013-09-24
- Earliest claimed: 2010-07-29
- Assignees: Yugenkaisha Choryu
- Applicants: Toshifumi Hirashima
- Inventors: Toshifumi Hirashima
- Web page: https://patentgrep.com/patent/US8541641B2

## CPC

- A61B 17/085: {with adhesive layer}
- A61F 13/00: Bandages or dressings (radioactive dressings {A61N5/1029}); Absorbent pads
- A61B 17/0482: {Needle or suture guides (guides for drills, pins or wire A61B17/17; guides for puncturing needles A61B17/3403)}
- A61B 2017/00867: {shape memory effect}
- A61B 2017/081: {Tissue approximator (A61B2017/1103, A61B17/8866 take precedence)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A dehiscence preventive member is adapted to cover up a wound and surrounding tissues. A plurality of holding members are adapted to hold the dehiscence preventive member closely upon the wound and the surrounding tissues, and a contraction preventive member keeping the dehiscence preventive member suitably expanded in a dehiscence direction and of preventing the expanded dehiscence preventive member from contracting. The contraction distance of the dehiscence preventive member in the dehiscence direction is equal to or greater than a contraction distance of the holding member in the dehiscence direction. The dehiscence preventive is closely applied to the wound and surrounding tissues after expansion in the dehiscence direction such that the contraction distance of the dehiscence preventive member in the dehiscence direction is equal to or greater than the contraction distance of the dehiscence preventive member in a direction normal to the dehiscence direction.

## Claims

### Claim 1

An aid for prevention of wound dehiscence for preventing an incised wound caused to a part of a body by incision from splitting open by covering the wound and wound-surrounding tissues, the aid comprising:
a dehiscence preventive member adapted to cover up the wound and the wound-surrounding tissues;
a holding member adapted to hold the dehiscence preventive member closely upon the wound and the wound-surrounding tissues; and
a contraction preventive member having a capacity of keeping the dehiscence preventive member suitably expanded in a dehiscence direction and of preventing the expanded dehiscence preventive member from contracting, wherein
a contraction distance of the dehiscence preventive member in the dehiscence direction which is determined in response to the application of the dehiscence preventive member is equal to or greater than a contraction distance of the holding member in the dehiscence direction which is determined in response to the application of the holding member,
the dehiscence preventive member is adapted to be closely applied to the wound and the wound-surrounding tissues after being expanded in the dehiscence direction in a manner such that the contraction distance of the dehiscence preventive member in the dehiscence direction which is determined in response to the application of the dehiscence preventive member is equal to or greater than the contraction distance of the dehiscence preventive member in a direction normal to the dehiscence direction which is determined in response to the application of the dehiscence preventive member, and
the contraction preventive member is removed after the dehiscence preventive member is applied by being fixed with the holding member.

### Claim 2 (depends on 1)

An aid for prevention of wound dehiscence as claimed in claim 1 wherein the wound is sutured.

### Claim 3 (depends on 1)

An aid for prevention of wound dehiscence as claimed in claim 1 wherein the wound is not sutured.