Gastric inflation band with integrated infusion catheter

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/12 (2006.01)

Patent

CA 2713814

An inflatable gastric band incorporates a fluid channel within an outer surface of the band and an inflatable bladder on a stomach-faeing side of the band. The gastric band attaches to a double lumen catheter, whieh com-municates with a dual infusion port. One lumen communicates with the fluid channel and one port, while the other lumen communicates with the inflatable bladder and a second port. Injection of fluid into one chamber of the infu-sion port expands inflatable bladder, allowing adjustment to the diameter of the stoma. Injection of drugs or therapeutic agents into the second chamber al-lows the infusion of drugs or agents directly into the abdominal cavity of a gas-tric band recipient. The inflatable bladder can be eontinuous or segmented. A segmented bladder reduces pinching and/or folding of the inner surface of the gastric band during expansion/contraction, thereby lessening stomach pinch-ing and/or irritation.

L'invention porte sur un anneau gastrique gonflable dans la surface externe duquel est intégré un canal fluidique et qui est muni d'une poche gonflable sur le côté qui fait face à l'estomac. L'anneau gastrique est attaché à une sonde à double lumière qui communique avec un double port de perfusion. Une lumière communique avec le canal fluidique et un port, tandis que l'autre lumière communique avec la poche gonflable et un second port. L'injection de liquide dans une chambre du port de perfusion remplit la poche gonflable, permettant de la sorte de régler le diamètre de la stomie. L'injection de médicaments ou d'agents thérapeutiques dans la seconde chambre permet de perfuser des médicaments ou des agents directement dans la cavité abdominale d'un utilisateur de l'anneau gastrique. La poche gonflable peut être continue ou segmentée. Une poche segmentée réduit le pincement et/ou le repliement de la surface interne de l'anneau gastrique lors de l'expansion et de la contraction, atténuant par conséquent le pincement et/ou l'irritation de l'estomac.

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