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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10428458 B1

PDFFull Text
Date of Patent:
Oct. 01, 2019

Filed:

Feb. 05, 2016

Medical nonwoven fabric, and preparation method thereof

Applicant:

Korea Institute of Industrial Technology, Chungcheongnam-do, KR;

Inventors:

Jung Nam Im, Gyeonggi-do, KR;

Dae Young Lim, Gyeonggi-do, KR;

Guk-Hwan An, Gyeongsangbuk-do, KR;

Yoon Jin Kim, Gyeonggi-do, KR;

Assignee:

KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, , KR;

Attorney:

Levenfeld Pearlstein, LLC

Primary Examiner:

Michael A Tolin

Int. Cl.
CPC ...
A61F 13/36 (2006.01); A61L 15/28 (2006.01); A61L 15/60 (2006.01); D21H 13/04 (2006.01); D21H 11/00 (2006.01); D21H 11/20 (2006.01); A61L 15/56 (2006.01); A61L 31/04 (2006.01); A61L 31/12 (2006.01); A61L 31/14 (2006.01); D21H 21/28 (2006.01); A61F 13/44 (2006.01); D04H 1/407 (2012.01); D21H 25/04 (2006.01); D21H 27/30 (2006.01); D21H 17/37 (2006.01); D21H 15/02 (2006.01); D21H 17/36 (2006.01); D21H 21/18 (2006.01); A61L 15/26 (2006.01); D21H 17/24 (2006.01); D21H 17/53 (2006.01); D21H 17/25 (2006.01); D21H 21/52 (2006.01); A61F 13/15 (2006.01); A61F 13/00 (2006.01); D21H 21/14 (2006.01);
U.S. Cl.
CPC ...
D21H 11/00 (2013.01); A61F 13/36 (2013.01); A61F 13/44 (2013.01); A61L 15/26 (2013.01); A61L 15/28 (2013.01); A61L 15/56 (2013.01); A61L 15/60 (2013.01); A61L 31/042 (2013.01); A61L 31/048 (2013.01); A61L 31/129 (2013.01); A61L 31/146 (2013.01); D04H 1/407 (2013.01); D21H 5/1281 (2013.01); D21H 13/04 (2013.01); D21H 15/02 (2013.01); D21H 17/24 (2013.01); D21H 17/25 (2013.01); D21H 17/36 (2013.01); D21H 17/375 (2013.01); D21H 17/53 (2013.01); D21H 21/18 (2013.01); D21H 21/28 (2013.01); D21H 21/52 (2013.01); D21H 25/04 (2013.01); D21H 27/30 (2013.01); A61F 2013/00217 (2013.01); A61F 2013/15495 (2013.01); A61F 2013/15869 (2013.01); A61F 2013/15951 (2013.01); D21H 21/14 (2013.01); Y10T 156/10 (2015.01); Y10T 442/668 (2015.04); Y10T 442/669 (2015.04);
Abstract

The present invention relates to a medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers as prepared by the paper making process, a preparation method thereof, and an adhesion prevention barrier using the same. The present invention provides a single phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, to induce capillary action of micropores formed between the fibers and thereby control the gelation time, and provides a composite nonwoven fabric formed by laminating a nonwoven fabric layer comprising a different kind of biodegradable polymer material not susceptible to gelation on the single-phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, thereby improving dimensional stability and convenience of surgical procedure. The present invention further provides a dyed medical nonwoven fabric to improve visibility, allowing easiness of recognizing the placement or location of the medical nonwoven fabric.

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