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:
Jan. 02, 2001
Filed:
Sep. 14, 1998
Applicant:
Inventors:
Lixiao Wang, Maple Grove, MN (US);
Jianhua Chen, Brooklyn Park, MN (US);
Nao Lee, Brooklyn Park, MN (US);
Daniel J. Horn, Shoreview, MN (US);
Assignee:
SciMed life Systems, Inc., Maple Grove, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 4/908 ; A61M 2/900 ;
U.S. Cl.
CPC ...
B29C 4/908 ; A61M 2/900 ;
Abstract
A method for forming a balloon for a dilatation catheter involving the steps of extruding a segment of thermoplastic material, maintaining the center portion at a temperature below the glass transition of the thermoplastic material, drawing the segment to a predetermined length, wherein after the drawing the wall thickness of the center portion does not appreciably change, and expanding the segment in a mold to produce the balloon.