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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 10994048 B1

PDFFull Text
Date of Patent:
May. 04, 2021

Filed:

Sep. 01, 2016

Method for manufacturing hyaluronate fibers by using melt spinning and hyaluronate fibers manufactured thereby

Applicant:

Jinwoo Bio Co., Ltd., Seoul, KR;

Inventors:

Dong Keon Kweon, Yongin-si, KR;

Seung Hyeon Park, Seoul, KR;

Assignee:

JINWOO BIO CO., LTD., Seoul, KR;

Attorneys:

Novick, Kim & Lee, PLLC

Jae Youn Kim

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Virak Nguon

Int. Cl.
CPC ...
A61L 27/20 (2006.01); D01D 5/08 (2006.01); D01F 9/00 (2006.01); A61L 27/58 (2006.01); A61K 31/728 (2006.01); A61B 17/06 (2006.01); A61L 17/10 (2006.01); A61L 27/50 (2006.01); A61L 27/54 (2006.01); A61L 31/04 (2006.01); A61L 31/14 (2006.01); A61L 31/16 (2006.01); C08B 37/08 (2006.01); C08J 5/00 (2006.01); D01F 11/00 (2006.01);
U.S. Cl.
CPC ...
A61L 27/20 (2013.01); A61B 17/06 (2013.01); A61K 31/728 (2013.01); A61L 17/10 (2013.01); A61L 27/50 (2013.01); A61L 27/54 (2013.01); A61L 27/58 (2013.01); A61L 31/042 (2013.01); A61L 31/14 (2013.01); A61L 31/16 (2013.01); C08B 37/0072 (2013.01); C08J 5/00 (2013.01); D01D 5/08 (2013.01); D01F 9/00 (2013.01); D01F 11/00 (2013.01); A61L 2400/06 (2013.01); C08J 2305/08 (2013.01); D10B 2509/04 (2013.01);
Abstract

Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 500˜3,000 kDa to 5˜20%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150˜200° C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.

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