Balloon-button system

A - Human Necessities – 61 – J

Patent

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Details

A61J 15/00 (2006.01)

Patent

CA 2445862

The invention relates to a balloon-button system or a catheter for performing percutaneous enteral feeding, comprising a holding part (2), which can be placed on the abdominal wall, and a probe tube (3), which extends from the holding part (2) while being connected thereto and via which the nourishment that is inserted through a connecting part (4) situated in the holding part (2) can be introduced into the stomach lumen. The probe tube (3) forms, in the distal area thereof, an inner tube (8) and an outer tube (6) that surrounds the same. The outer tube (6) is formed by turning the inner tube (8) inside out at the distal end (10) of the latter and by pulling it back, and is joined, at its proximal end (12), to the inner tube (3) in a fluid-tight manner. The outer tube can be expanded to form a balloon (7) by introducing water or the like via a supply line (16), which extends from the holding part (2) and which discharges between the outer tube (6) and the inner tube (3). This system is characterized in that the probe tube (3) surrounds a protective tube (5), and the protective tube (5) has a higher Shore A hardness than the probe tube (3). This results in providing the material that forms the balloon with a sufficiently high degree of flexibility. In addition, the protective tube (5) renders the system sufficiently sturdy.

L'invention concerne un système de bouton à ballonnet ou un cathéter pour l'alimentation entérale percutanée. Le système ou le cathéter selon l'invention comprend une partie de fixation (2) à poser sur la paroi abdominale et un tube de sonde (3) partant de la partie de fixation (2) et raccordé à elle, par l'intermédiaire duquel la nourriture introduite dans la partie de fixation (2) à travers une partie de liaison (4) peut être introduite dans la lumière gastrique. Le tube de sonde (3) forme dans sa zone distale un tube intérieur (8) et un tube extérieur (6) entourant le tube intérieur. Le tube extérieur (6) est formé en retournant le tube intérieur (8) à son extrémité distale (10) et en le ramenant en arrière, il est relié au tube intérieur (3) au niveau de son extrémité proximale (12) avec étanchéité aux fluides et il peut être évasé en un ballonnet (7) par introduction d'eau ou d'une substance similaire par l'intermédiaire d'un conduit d'amenée (16) partant de la partie de fixation (2) et débouchant entre le tube extérieur (6) et le tube intérieur (8). Le système selon l'invention est caractérisé en ce que le tube de sonde (3) renferme un tube de soutien (5) présentant une dureté Shore A supérieure à celle du tube de sonde (3). Ainsi, le matériau formant le ballonnet est suffisamment souple mais le système est suffisamment robuste grâce au tube de soutien (5).

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