# US 2022/0313494 A1 · Improved wound dressing member

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- Number: US 2022/0313494 A1
- Document ID: US20220313494A1
- Status: Published application
- Kind: A1
- Application number: 17/608,740
- Filed: 2019-12-13
- Published: 2022-10-06
- Earliest claimed: 2019-05-09
- Inventors: Keun Cheol LEE
- Web page: https://patentgrep.com/patent/US20220313494A1

## CPC

- A61F 13/0213: {the fluid retention member being a layer of hydrocolloid, gel forming material}
- A61F 13/00063: {comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic (drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00)}
- A61F 13/0253: {characterized by the adhesive material}
- A61F 2013/0057: {with openable cover}
- A61F 2013/00702: {silicon-based}
- A61F 2013/00982: {anallergic or hypoallergic material}
- 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

The present invention relates to an improved wound dressing member, characterized in that the improved wound dressing member is a laminate comprising: a main body having an opening formed in the central portion thereof, wherein the opening is operable and closable by means of a cover; a cover sheet laminated on top of the main body; a release paper laminated below the main body; and the cover sheet capable of opening or closing the opening by being form-fitted into the opening.

## Claims

### Claim 1

A modified member for dressing a wound, which comprises:
a main body (10) having an opening (50) formed at a central portion thereof so as to be openable/closable;
a lid cover (20) stackedly disposed on a top surface of the main body (10);
a release paper (30) stackedly disposed on an underside surface of the main body (10); and
a lid (40) disposed at the opening (50) and formed in a shape of corresponding to the shape of the opening (50) to enable the lid (40) to open or close the opening (50) by press-fit engagement,
whereby the main body (10), the lid cover (20), the release paper (30), and the lid (40) form a stacked body.

### Claim 2 (depends on 1)

The modified member for dressing a wound according to claim 1, wherein the lid cover (20) comprises a structure in which a cover layer (21), a release material layer (22), and a pressure-sensitive adhesive layer (23) are stacked downwards in order, the lid cover (20) having an area lager than that of the lid (40).

### Claim 3 (depends on 1)

The modified member for dressing a wound according to claim 1, wherein the lid cover (20) comprises a structure in which the release material layer (22) is adhered to a protective layer (11) that is an upper layer of the main body (10) by means of the pressure-sensitive adhesive layer (23).

### Claim 4 (depends on 3)

The modified member for dressing a wound according to claim 3, wherein the lid (40) comprises a stacked body composed of a protective layer (41) and a pad layer (42).

### Claim 5 (depends on 1)

The modified member for dressing a wound according to claim 1, wherein the main body (10) comprises a stacked body composed of a protective layer (11) and a pad layer (12).

### Claim 6 (depends on 1)

The modified member for dressing a wound according to claim 1, wherein the main body (10) comprises a stacked body composed of a protective layer (11), a pad layer (12), and a silicone pressure-sensitive adhesive layer (60).

### Claim 7 (depends on 5)

The modified member for dressing a wound according to claim 5, wherein the pad layer (12) is obtained by impregnating the synthetic resin foam with hydrocolloid or hydrogel.

### Claim 8 (depends on 6)

The modified member for dressing a wound according to claim 6, wherein the pad layer (12) is obtained by impregnating the synthetic resin foam with hydrocolloid or hydrogel.