A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/84 (2006.01)
Patent
CA 2270932
A stent delivery system for delivering a self-expanding stent to a predetermined location in a vessel includes a catheter body having an axial guidewire lumen and a pull-wire lumen. A medical device such as a self-expanding stem is held in a reduced delivery configuration for insertion and transport through a body lumen to a predetermined site for deployment. The stent is carried axially around the catheter body near its distal end and held in its reduced configuration by a retractable outer sheath. A proximal retraction handle is connected to the proximal end of the catheter body and includes a pistol grip trigger engaging a racket mechanism, which is connected to a pull-wire which extends through the pull-wire lumen and is connected to the retractable outer sheath.
La présente invention concerne un système de mise en place de stent permettant de mettre en place un stent autodéployant en un emplacement défini d'un vaisseau. Ce système comporte un corps de cathéter pourvu d'une lumière de fil de guidage axial et d'une lumière de traction sur le fil. Un dispositif médical tel qu'un stent autodéployant est maintenu en configuration réduite de mise en place en vue de l'insertion et du transport, via une lumière du corps, vers un site défini de déploiement. Le stent est porté axialement autour du corps de cathéter à proximité de son extrémité distale et maintenu en configuration réduite au moyen d'une gaine extérieure rétractable. Une poignée proximale de retrait, raccordée à l'extrémité proximale du corps de cathéter, comporte un déclencheur pistolet retenant un mécanisme à cliquet qui traverse la lumière de traction sur le fil et qui est connecté à la gaine extérieure rétractable.
Devries Robert B.
Sullivan Roy III
Boston Scientific Limited
Piasetzki Nenniger Kvas Llp
Scimed Life Systems Inc.
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