Catheter having improved curve retention and method of...

Details Catheter having improved curve retention and method of... Catheter having improved curve retention and method of...

A - Human Necessities

61

L

A61L 29/04 (2006.01) A61L 29/06 (2006.01) A61L 29/12 (2006.01)

Patent

CA 2470468

The present invention provides a polymeric treatment for curved regions in shaft assemblies that increases curve retention without affecting the flexibility within these regions. More specifically, the present invention modifies the underlying crystalline morphology of a polymer in order to decrease crystal fracturing. In particular, the present invention treats polymeric materials suitable for catheter construction with a nucleating agent.

La présente invention concerne un traitement par polymère destiné aux zones courbes d'ensembles tiges qui augmente la rétention des courbes sans altérer la flexibilité de ces régions. Plus précisément, l'invention modifie la morphologie cristalline sous-jacente d'un polymère afin de réduire la fracture des cristaux. L'invention permet, en particulier, de traiter les matières polymères aptes à la construction de cathéters avec un agent de nucléation.

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