A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/10 (2006.01) A61M 25/01 (2006.01)
Patent
CA 2651380
The present invention provides a balloon catheter comprising an inner shaft disposed within an outer shaft such that the distal end of the inner shaft extends beyond the distal end of the outer shaft, a balloon attached at its proximal end to said outer shaft and at its distal end to said inner shaft. The inner shaft is constructed such that following radial expansion of the balloon to a first expanded state, a portion of said inner shaft is capable of responding to further longitudinal expansion of the balloon to a second expanded state by reducing its inner diameter thereby being able to grasp a guidewire placed within the lumen of said inner shaft. Furthermore, said inner shaft is capable of responding to further expansion of the balloon by increasing its length.
La présente invention concerne un cathéter à ballonnet qui comprend une tige interne disposée dans une tige externe de sorte que l'extrémité distale de la tige interne s'étende au-delà de l'extrémité distale de la tige externe, un ballonnet attaché, au niveau de son extrémité proximale, à la tige externe et au niveau de son extrémité distale, à la tige interne. La tige interne est construite de sorte qu'après la dilatation radiale du ballonnet dans un premier état dilaté, une partie de la tige interne soit capable de réagir à la dilation longitudinale du ballonnet dans un deuxième état dilaté en réduisant son diamètre intérieur, ce qui permet ainsi de saisir un fil-guide placé dans la lumière de ladite tige interne. De plus, la tige interne peut réagir à une autre dilatation du ballonnet en s'allongeant.
Dubi Shay
Hirszowicz Eran
Levit Eran
Endocross Ltd.
Smart & Biggar
LandOfFree
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