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:
Oct. 31, 1995
Filed:
Apr. 26, 1994
Jui-Hsiang Chen, Hsinchu, TW;
Jeng Wei, Taipei, TW;
Andrew T Hu, Hsinchu, TW;
Yu-Der Lee, Hsinchu, TW;
Ru-Fong Laiw, Hsinchu, TW;
Muh-Lan Chen, Hsinchu, TW;
Chung-Yi Chang, Taipei, TW;
Fan-Yen Lee, Taipei, TW;
Shu-Fang Jiang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A porous polyurethane tube suitable for use as a vascular graft prosthesis is prepared by placing solvent type polyurethane resin coated mandrel in a static coagulant consisting of water, ethanol and optionally aprotic solvent within 30 seconds immediately after the coating step, separating the tube by placing the mandrel in a swelling agent containing at least 90 percent by weight of ethanol and rinsing with a solution containing at least 80 percent by weight ethanol.