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.

Date of Patent:
Aug. 27, 2002

Filed:

Jan. 16, 2001
Applicant:
Inventor:

Yasuhiko Shimizu, Uji-shi, Kyoto, 611-0002, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 5/00 ; A61F 1/300 ; A61F 1/500 ; A61F 2/10 ;
U.S. Cl.
CPC ...
A61F 5/00 ; A61F 1/300 ; A61F 1/500 ; A61F 2/10 ;
Abstract

The present invention relates to a collagen material comprising a laminate in which a collagen ultra-fine fibrous non-woven fabric-like multi-layer structure is sandwiched between non-fibrous collagen layers, a thread-like material containing said collagen material, their production processes, and a medical material containing said collagen material, and particularly a medical alternative membrane comprised of said medical material. These use collagen for their raw material without combining the use of a synthetic polymer material, possess physical properties to an extent that allows suturing while still maintaining the biochemical properties inherently possessed by collagen, and the alternative medical membrane can be used as a material for filling in the missing portions of biomembranes such as endocranium, pericardium, pleura, peritonium or serous membrane, presents no ethical problems, is in stable supply, has no risk of infection, does not cause cell degeneration, allows control of the rate of degradation following application to the body, and has an action that promotes regeneration of biomembranes.


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