Improved balloon catheter and treatment apparatus

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/10 (2006.01) A61L 29/04 (2006.01)

Patent

CA 2491456

The present invention provides an improved balloon catheter (100). The balloon (114) is of a composite material having the flexibility and elastic characteristics of an elastomeric material, yet exhibiting the growth limits of inelastic materials. The balloon (114) may be treated to maintain a substantially constant length during inflation and deflation. The balloon (114) may be provided with regions of porosity for the delivery of therapeutic agents, and may be treated to exhibit regions of distinct compliance. Also disclosed is an apparatus, which may be used to impart the regions of distinct compliance into the balloon (114).

La présente invention concerne une sonde à ballonnet améliorée (100). Le ballonnet (114) est fait d'un matériau composite présentant les caractéristiques de flexibilité et d'élasticité d'un matériau élastomérique, mais présentant cependant les limites d'extension des matériaux non élastiques. Le ballonnet (114) peut être traité de manière à garder une longueur sensiblement constante au cours du gonflement et du dégonflement. Le ballonnet (114) peut présenter des zones poreuses pour l'administration d'agents thérapeutiques, et peut être traité de manière à présenter des zones à différente capacité d'adaptation. L'invention concerne également un appareil pouvant être utilisé pour obtenir des zones à différente capacité d'adaptation dans le ballonnet (114).

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