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. 04, 2005
Filed:
Nov. 10, 2000
Show-mean Wu, San Diego, CA (US);
Show-Mean Wu, San Diego, CA (US);
SciMed Life Systems, Inc., Maple Grove, MN (US);
Abstract
A combination of urethane polymeric components provides desired characteristics in forming medical instruments such as catheters and balloons for dilatation catheters. For example, a balloon material is formed form a blend of urethane polymeric components, including a first polymeric component having a first glass transition temperature and a second polymeric component having a second glass transition temperature. The first polymeric component can be branched or straight chain of thermoplastic polyurethane compound having a glass transition temperature polyurethane compound having a glass transition temperature higher than normal human body temperature. The second polymeric component can be a second thermoplastic polyurethane having a glass transition temperature equal to or lower than normal human body temperature. The polymeric blend can be heat treated to further enhance the properties or stability of the balloon material, including significantly increasing burst pressure.