Device and method of guide wire balloon inflation and...

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/10 (2006.01) A61F 2/84 (2006.01)

Patent

CA 2365168

The device comprises a guide wire (14) having a lumen (34) inside the guide wire (14). The guide wire (14) has one end occluded (24), the other end open (36), and has a balloon (20) at the occluded end (24). A core segment (30) is inserted into the open end (36) of the guide wire (14), and may be removed from the guide wire (14) when the open end (36) of the guide wire (14) is inside a basin full of normal saline mixed with non-ionic contrast media. When the core segment (30) is removed, it creates a vacuum inside the lumen (34) of the guide wire (14) which is filled immediately with the solution. Then, the core segment is gently advanced until the guide wire balloon (20) is fully distended. Through a locking mechanism the core segment is kept in position. Coaxial systems, such as balloon catheter, and stent delivery systems, can be applied over the guide wire (14) without deflating the guide wire balloon (20).

Cette invention concerne un dispositif comprenant un câble de guidage (14) qui comprend une lumière (34) à l'intérieur. Le câble de guidage (14) possède une extrémité fermée (24) tandis que l'autre est ouverte (36), un ballonnet (20) étant prévu à l'extrémité fermée (24). Un segment central (30) est inséré dans l'extrémité ouverte (36) du câble de guidage (14), et peut être retiré dudit câble de guidage (14) lorsque l'extrémité ouverte (36) de ce dernier (14) se trouve dans une cuvette remplie d'un soluté isotonique de chlorure de sodium mélangé à des agents de contraste non ioniques. Lorsque le segment central (30) est retiré, il crée un vide dans la lumière (34) du câble de guidage (14) qui se remplit immédiatement de solution. Le segment central est ensuite poussé doucement vers l'avant jusqu'à ce que le ballonnet (20) du câble de guidage soit complètement distendu. Un mécanisme de verrouillage permet de maintenir le segment central en position. Des systèmes coaxiaux, tels qu'un cathéter à ballonnet et des systèmes d'acheminement d'extenseurs, peuvent être placés sur le câble de guidage (14) sans dégonfler le ballonnet (20) de celui-ci.

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