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. 29, 2003
Filed:
Dec. 13, 2000
Applicant:
Inventors:
Shinji Hayakawa, Saitama, JP;
Kensaku Ueki, Tokyo, JP;
Assignee:
Pentax Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/00 ;
U.S. Cl.
CPC ...
A61B 1/00 ;
Abstract
A flexible tube for an endoscope includes a flexible elongated structural body and an outer cover provided over the elongated structural body. The outer cover is made of a material which contains polyurethane elastomer and polyester elastomer, in which compounding ratio of the polyurethane elastomer and the polyester elastomer in the material is 0.03-0.3 parts by weight of the polyester elastomer per 1 part by weight of the polyurethane elastomer. This flexible tube has excellent flexibility as well as various excellent properties such as chemical resistance, heat resistance and weather resistance.