公开(公告)号：US11191865B2

公开(公告)日：2021-12-07

申请号：US15736758

申请日：2016-06-24

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Jung Nam Im ,  Song Jun Doh ,  Tae Hee Kim ,  Yoonjin Kim ,  Chaehwa Kim ,  Gyu Dong Lee ,  Gahee Kim

IPC: A61L15/22 ,  A61L15/28 ,  A61L31/04 ,  A61L15/44 ,  D04H1/04 ,  D04H1/72 ,  D06N3/00 ,  D06N3/12

Abstract: Disclosed are a medical fiberous structure and a method for preparing the same, wherein the medical fiberous structure comprises calcium carboxymethyl cellulose and a chitosan compound, at least one of the calcium carboxymethyl cellulose and the chitosan compound having a fibrous shape.

公开(公告)号：US11833257B2

公开(公告)日：2023-12-05

申请号：US15735818

申请日：2016-06-10

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Tae Hee Kim ,  Jung Nam Im ,  Song Jun Doh ,  Chaehwa Kim ,  Yoonjin Kim ,  Gyu Dong Lee

IPC: A61L15/42 ,  A61F13/00 ,  A61L15/22 ,  A61L15/44 ,  B29C44/00 ,  B29K105/04

CPC classification number: A61L15/425 ,  A61F13/00012 ,  A61F13/00042 ,  A61F13/00063 ,  A61F13/00987 ,  A61L15/225 ,  A61L15/44 ,  B29C44/00 ,  A61L2300/102 ,  A61L2300/418 ,  A61L2300/602 ,  A61L2400/04 ,  B29K2105/04 ,  C08J2201/00 ,  C08J2301/00 ,  C08J2301/02 ,  C08J2301/08 ,  C08J2305/00 ,  C08J2305/08

Abstract: Disclosed is a porous structure including water-soluble chitosan; and a carboxymethyl cellulose-based compound, wherein a weight ratio of the water-soluble chitosan and the carboxymethyl cellulose-based compound is from 65:35 to 25:75, and a process for preparing the same.

公开(公告)号：US09642929B2

公开(公告)日：2017-05-09

申请号：US14782843

申请日：2013-11-20

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Jung Nam Im ,  Song Jun Doh ,  Tae Hee Kim ,  Min Ji Yoon ,  Chae Hwa Kim

IPC: A61L15/28 ,  A61L15/42 ,  A61F13/00 ,  A61L15/60 ,  A61F13/15 ,  A61L15/44

CPC classification number: A61L15/28 ,  A61F13/00012 ,  A61F13/15203 ,  A61F2013/15463 ,  A61L15/425 ,  A61L15/44 ,  A61L15/60 ,  A61L2300/404 ,  A61L2300/418 ,  A61L2400/04 ,  C08L1/26

Abstract: The present invention relates to a highly liquid absorbent and hardly water-soluble carboxymethyl cellulose (CMC) foam, which absorbs body fluid or water, expands in volume when absorbing liquid, does not gelate, and maintains shape. The hardly water-soluble CMC foam prepared according to the preparation method of the present invention has remarkably superior liquid absorption property, shows large volume expansibility when absorbing liquid, does not gelate, and maintains shape. Therefore, a remarkably improved ability is shown when used as a hemostatic agent and a wound dressing. In addition, when the CMC foam is treated with a CMC powder dispersing liquid, the surface characteristics change, thereby preventing adhesion with the skin and improving liquid retention capability. Thus, it is possible to control the liquid absorption property thereof to meet the desired purpose.