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. 15, 1995

Filed:

Feb. 07, 1994
Applicant:
Inventors:

Kenichi Shimura, Kanagawa, JP;

Naoki Ishii, Kanagawa, JP;

Makoto Onishi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604265 ; 424425 ;
Abstract

This invention provides a medical tool the surface of which is enabled to acquire lasting lubricity (low friction) by assuming a state wetted with bodily fluid or aqueous solution. This surface is formed without requiring the coating work to be repeated. The medical tool is produced by coating a water-swellable polymer having in the molecular unit thereof a reactive functional group capable of being reacted with a proton-donating group, on the surface of a matric material possessing the proton-donating group, and also by coating a water-swellable polymer having in the molecular unit thereof a reactive group capable of being reacted with an acid anhydride group on the surface of a matric material possessing the acid anhydride group.


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