A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/06 (2006.01) A61M 25/10 (2006.01)
Patent
CA 2410528
A catheter with two balloons for implanting a stent without flaring at the ends of the stent during implantation has an outer balloon overlying an inner balloon. The length of the inner balloon is shorter than the length of the outer balloon and shorter than a stent which is mounted over both balloons. Upon inflation of the inner balloon, the inner balloon expands only the center of the stent. After the center of the stent is expanded, further application of pressure bursts the inner balloon allowing application of pressure to the outer balloon. The outer balloon is then inflated, expanding the ends of the stent.
L'invention concerne un cathéter à deux ballonnets permettant d'implanter un stent sans évasement au niveau des extrémités dudit stent pendant son implantation, qui comprend un ballonnet extérieur recouvrant un ballonnet intérieur. La longueur du ballonnet intérieur est inférieure à la longueur du ballonnet extérieur, et inférieure à celle d'un stent monté sur les deux ballonnets. Lors de son gonflage, le ballonnet intérieur se dilate uniquement au centre du stent. Une fois le centre du stent dilaté, une application de pression additionnelle fait éclater le ballonnet intérieur, ce qui permet d'appliquer la pression au ballonnet extérieur. Le ballonnet extérieur est alors gonflé, et dilate les extrémités du stent.
Mccarthy Tetrault Llp
Medinol Ltd.
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