Non-coextrusion method of making multi-layer angioplasty...

Details Non-coextrusion method of making multi-layer angioplasty... Non-coextrusion method of making multi-layer angioplasty...

B - Operations, Transporting

29

C

B29C 49/22 (2006.01) A61M 25/00 (2006.01) A61M 25/10 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2196312

A non-coextrusion process for making multi-layer angioplasty balloons involves pre-forming separate parisons (10, 12) and then concentrically disposing the plural parisons to form a composite parison which is then subjected to a blow- molding process. The resulting balloon can have its properties tailored by appropriate selection of the particular plastics to be used for the multiple parisons.

Un procédé sans co-extrusion servant à fabriquer des ballonnets d'angioplastie à couches multiples consiste à former préalablement des paraisons séparées (10, 12) et à placer concentriquement ces paraisons, de manière à obtenir une paraison composite qu'on soumet ensuite à une opération de soufflage. La sélection appropriée des plastiques utilisés pour les paraisons multiples permet de personnaliser les propriétés du ballonnet obtenu.

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