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:
Jan. 14, 1992
Filed:
Aug. 30, 1988
Applicant:
Inventors:
Eisaburo Imamura, Kunitachi, JP;
Yasuharu Noishiki, Tottori, JP;
Hitoshi Koyanagi, Tokyo, JP;
Teruo Miyata, Tokyo, JP;
Masayasu Furuse, Sagamihara, JP;
Assignee:
Koken Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623-2 ; 623 66 ;
Abstract
A bioprosthetic valve made from a biological tissue containing collagen which has been cross-linked with a polyepoxy compound is disclosed. The valve has excellent biocompatibility and is durable and is free from calcification.