Balloon catheter and delivery device for a stent

Details Balloon catheter and delivery device for a stent Balloon catheter and delivery device for a stent

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61F 2/06 (2006.01)

Patent

CA 2218406

Balloon catheter and stent delivery device A balloon catheter comprising a tubular catheter shaft (1 ) having a proximal and a distal end (2), an elongated dilatation balloon (3) being arranged on the catheter shaft (1) in the vicinity of the distal end (2) thereof, and an indistensible covering sleeve (4) being movable along the catheter shaft (1), said covering sleeve (4) having a first portion (10) with a first inner diameter(D1) surrounding the catheter shaft (1) and a second portion (11) with a second inner diameter (D2) being pushable over the deflated dilatation balloon (3), said second inner diameter (D2) being larger than said first inner diameter(D1), comprises for continuous adjustability of the fully expandable balloon length at the outside end of the second portion (1 1 ) an indistensible third portion (12) with a third inner diameter (D3), said third inner diameter (D3) ranging from said first inner diameter (D1) to said second inner diameter (D2).

Cathéter à ballonnet et dispositif d'introduction d'extenseur. Un cathéter à ballonnet comportant un corps tubulaire (1 ) avec une extrémité proximale et une extrémité distale (2), un ballonnet allongé dilatable (3) monté sur le corps tubulaire (1) au voisinage de son extrémité distale (2), et une gaine non expansible (4) pouvant être déplacée le long du corps du cathéter (1); la gaine (4) comprend une première partie (10), avec un premier diamètre interne (D1), entourant le corps (1), et une seconde partie (11), avec un second diamètre interne (D2), pouvant être poussée par dessus le ballonnet dégonflé (3); le second diamètre (D2) est plus grand que le premier (D1); pour un ajustement permanent de la longueur pleinement expansible du ballonnet, le cathéter comprend, à l'extrémité externe de la seconde partie (11), une troisième partie non expansible (12), avec un troisième diamètre interne (D3), compris entre le premier diamètre interne (D1) et le second diamètre interne (D2).

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