An axially-elongating stent and method of deployment

Details An axially-elongating stent and method of deployment An axially-elongating stent and method of deployment

A - Human Necessities

61

F

A61F 2/82 (2006.01) A61F 2/84 (2006.01) A61F 2/88 (2006.01) A61F 2/90 (2006.01)

Patent

CA 2636561

A stent is capable of expanding both radially and axially during deployment. The stent can be balloon expandable or self expanding. In the balloon expandable version, circumferentially expandable structures are connected with folded links. When the stent is expanded axially, those links allow axial expansion without reducing radial expansion. A specially designed balloon, also capable of radial and axial expansion, may be used to deploy the stent.

Selon la présente invention, un stent peut se déployer à la fois de manière radiale et axiale lors du déploiement. Le stent peut être déployé par un ballonnet ou être auto-expansible. Dans la version déployable par ballonnet, des structures se déployant circonférentiellement sont reliées par des liaisons pliées. Lorsque le stent est déployé de manière axiale, ces liaisons permettent une expansion axiale sans réduire l'expansion radiale. Un ballonnet conçu spécialement, également capable d'une expansion radiale et axiale, peut être utilisé pour déployer le stent.

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