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:
Aug. 05, 2014
Filed:
Jun. 30, 2009
Ronald L. Bracken, Oxford, GA (US);
Fung Bor Chen, Greer, SC (US);
Randy Tuck, Summerville, SC (US);
Ronald L. Bracken, Oxford, GA (US);
Fung Bor Chen, Greer, SC (US);
Randy Tuck, Summerville, SC (US);
C.R. Bard, Inc., Covington, GA (US);
Abstract
A medical article, such as a catheter, is formed from a blend of polyurethane and synthetic polyisoprene (SPIR). The blended medical article is preferably selected and prepared to be relatively rigid at room temperature and relatively flexible at body temperature. An intermittent catheter made from the blend provides a degree of stiffness for its insertion into the patient at room temperature. The catheter becomes softer, and therefore more comfortable, at warmer temperatures (e.g., body temperature) which reduce discomfort after insertion. Optionally, the catheter or a portion thereof can have a hydrophilic coating as to avoid the need for external lubricants. Advantageously, the blended catheter can meet the stiffness, tensile strength, and coefficient of friction requirements of intermittent catheterization applications while avoiding the risk of toxic or allergic reactions in sensitive users.