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. 09, 1984
Filed:
Apr. 22, 1982
Applicant:
Inventor:
Edward W Wong, Lexington, MA (US);
Assignee:
Ontario Research Foundation, Mississauga, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; A61F / ;
U.S. Cl.
CPC ...
156167 ; 3 14 ; 156175 ;
Abstract
Porous polymeric material, which, in tubular form, is suitable for use as a vascular graft, is made by a procedure wherein polymeric fibres are wound on a mandrel while overlying fibres are simultaneously bonded together. In one preferred embodiment, a viscous solution of a biocompatible polymer is extruded from a spinnaret to form a plurality of filaments which are wound on a rotating mandrel as the spinnaret reciprocates relative to the mandrel. The filaments are wet as they contact each other, so that on evaporation of the solvent the fibres become bonded to each other.