Method and apparatus for inflating and deflating balloon...

Details Method and apparatus for inflating and deflating balloon... Method and apparatus for inflating and deflating balloon...

A - Human Necessities

61

B

A61B 18/02 (2006.01) A61F 7/00 (2006.01) A61M 25/10 (2006.01)

Patent

CA 2673180

A system and method for controlling the inflation, ablation, and deflation of a balloon catheter. The system includes a balloon catheter, a console, a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system may include controller that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted.

L'objet de la présente invention concerne un système et un procédé de contrôle du gonflage, du retrait et du dégonflage d'un cathéter à ballonet. Ce système comprend un cathéter à ballonet, une console, une source de gonflage au gaz ou au liquide sous pression ainsi qu'un système ombilical qui ammène l'agent de refroidissement sous pression au cathéter à ballonet. Le système peut comprendre un régulateur qui surveille la pression et le volume dans le cathéter à ballonet. Au cours du gonflage on maintient la pression et/ou le volume du fluide dans le ballonet à une valeur cible afin d'obtenir une pression mécanique suffisante sur la région cible désirée. Le système limite la pression de gonflage, de sorte qu'une certaine quantité de gaz serait libérée en cas de fuite. En cas de baisse en-deçà d'un certain seuil, l'échappement de gaz ou de liquide est supposé et le processus de gonflage est stoppé.

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