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.:
Date of Patent:
Jul. 02, 1991
Filed:
Apr. 13, 1990
Applicant:
Inventors:
Makoto Kodama, Ibaraki, JP;
Tsukasa Sakai, Ibaraki, JP;
Keishiro Tsuda, Ibaraki, JP;
Koichi Okita, Osaka, JP;
Shigeru Asako, Osaka, JP;
Masaharu Komamiya, Saitama, JP;
Hiroshi Oinuma, Saitama, JP;
Assignees:
Agency of Industrial Science and Technology, Tokyo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Watanabe Pharmaceutical Industry Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61F / ;
U.S. Cl.
CPC ...
514 56 ; 514 54 ; 623-1 ; 623 11 ; 623 12 ; 128D / ;
Abstract
An antithrombogenic material is described, comprising an expanded polytetrafluoroethylene base having a collagen layer provided on the surface thereof, and further provided thereon a composite layer of collagen and a mucopolysaccharide, and said collagen is crosslinked with a crosslinking agent.