Patent ID: 11957856
Assignee: CARDIOFOCUS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 4:
5. A balloon catheter system comprising:
a balloon catheter including a catheter body and an inflatable balloon coupled to one end thereof, wherein the balloon is formed of a material selected from the group consisting of urethane, silicone rubber and polyisoprene and has a durometer between 80 Shore A and 50 Shore A, wherein the balloon has a distal taper of 15 degrees to 25 degrees and a proximal taper of 30 degrees to 55 degrees; and
a fluid management system for controllably inflating and deflating the balloon, the fluid management system including a reservoir for storing balloon fill media, a first conduit connected between the reservoir and the balloon for delivering the balloon fill media, a second conduit connected between the balloon and the reservoir for returning the balloon fill media from the balloon to the reservoir, and a pump disposed along the first conduit and configured to circulate the balloon fill media along a circuit defined by the first and second conduits;
wherein the fluid management system includes a selectable valve that permits the balloon to be inflated by delivering the balloon fill media to the balloon; to be deflated by removing the balloon fill media from the balloon and permits the balloon fill media to be circulated in a closed loop which is not in fluid communication with the reservoir.