Catheter shaft having distal support

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/10 (2006.01)

Patent

CA 2552599

A catheter comprising an inflatable balloon having a proximal end, a distal end, and an inflation cavity therebetween, a catheter shaft having the inflatable balloon affixed proximate a distal end thereof, the catheter shaft having an inflation lumen fluidly connected to the balloon inflation cavity. A guidewire lumen extends through the balloon cavity within a tubular member which is affixed to the inflatable balloon proximate the distal end. A reinforcing sleeve, having a proximal portion and a distal portion with a lumen extending therethrough, wherein the distal portion of the sleeve extends into the inflation cavity with at least a portion of the tubular member slidably disposed through the lumen thereof and the proximal portion is fixed relative to the catheter shaft and disposed in the catheter shaft inflation lumen.

L'invention concerne un cathéter, qui comprend un ballonnet gonflable présentant une extrémité proximale; une extrémité distale; une cavité de gonflage située entre les deux extrémités; un manche de cathéter à proximité de l'extrémité distale duquel le ballonnet gonflable est fixé, ledit manche de cathéter présentant une lumière de gonflage communiquant librement avec la cavité de gonflage du ballonnet. Une lumière de fil-guide traverse la cavité du ballonnet à l'intérieur d'un élément tubulaire fixé au ballonnet gonflable à proximité de l'extrémité distale. Un manchon de renfort présente une partie proximale et une partie distale traversée d'une lumière. La partie distale du manchon s'étend à l'intérieur de la cavité de gonflage. Au moins une partie de l'élément tubulaire est disposée par coulissement à travers la lumière et la partie proximale est fixée relativement au manche du cathéter et installée dans la lumière de gonflage du cathéter.

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