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:
May. 31, 1994
Filed:
Aug. 05, 1992
Applicant:
Inventors:
Ketan P Muni, San Jose, CA (US);
Michael S Williams, Cupertino, CA (US);
Assignee:
Advanced Cardiovascular Systems, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 25 ; 264 26 ; 2642091 ; 264235 ; 264346 ; 4251 / ;
Abstract
A catheter is formed from a single extrusion of cold crystallizable material in its amorphous state. Selected portions of the catheter are subsequently subjected to the material's cold crystallization temperatures for a selected period of time in order to transform those portions into a more crystalline form. Increased crystallinity profoundly affects the physical characteristics of the material. A jointless catheter having a relatively stiff body and a soft, pliable, and atraumatic tip is thereby provided.