Medical devices and processes for preparing same

Details Medical devices and processes for preparing same Medical devices and processes for preparing same

B - Operations, Transporting

29

C

B29C 33/52 (2006.01) A61M 25/00 (2006.01) A61M 25/10 (2006.01) B29C 41/10 (2006.01) B32B 1/08 (2006.01) B32B 3/02 (2006.01) C08G 73/10 (2006.01)

Patent

CA 2532107

A medical device such as a catheter, stent or balloon, is formed by depositing a radiation curable composition on a form (30) made of ice or wax. The deposited composition may be cured by irradiation, suitably with UV light. Complex structures can be built up if the deposition or curing is achieved imagewise. Compositions which photocure to polyester, polyamide or polyimide may be employed. A particular structure is a balloon for a rapid exchange catheter which has a guide wire lumen (85) passing through the balloon cone walls (86, 87).

L'invention concerne un dispositif médical, tel qu'un cathéter, un drain tuteur ou un ballonnet, formé par dépôt d'une composition pouvant être traitée par rayonnement, se présentant sous forme de glace ou de cire. La composition déposée peut être traitée au moyen d'un rayonnement, de la lumière ultraviolette par exemple. La présente invention permet de construire des structures complexes lorsque le dépôt ou le traitement est réalisé avec des motifs. On peut utiliser des compositions photopolymérisables en polyester, polyamide ou polyimide. L'invention concerne en particulier un ballonnet pour cathéter à échange rapide, dont les parois coniques sont traversées par une lumière fil-guide.

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