Method and apparatus for inflating and deflating balloon catheters

摘要

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.

主权项

1. A medical device system, comprising:
a medical device having an inlet and an outlet; a coolant reservoir; a first fluid path directing coolant from the coolant reservoir to the inlet of the medical device; a second fluid path directing coolant from the coolant reservoir to the inlet of the medical device; and a subcooler in thermal communication with the second fluid path, wherein the first fluid path and the second fluid path intersect at a first location distal of the subcooler and a second location proximal of the subcooler.