Patent ID: 11918282
Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An apparatus comprising:
(a) a catheter shaft assembly having a distal end; and
(b) an end effector positioned at the distal end of the catheter shaft assembly, the end effector including:
(i) a balloon having a proximal end and a distal end, the balloon defining an interior configured to receive a fluid to inflate the balloon, the balloon being sized and configured to fit within a cardiovascular anatomical structure,
(ii) one or more electrodes on the balloon,
(iii) a tip assembly at the distal end of the balloon, the tip assembly including a pressure relief valve, the pressure relief valve being configured to transition between a sealing state and a pressure-relieving state,
(iv) a cylindraceous member at the distal end of the balloon, the tip assembly being coupled with the cylindraceous member, the tip assembly further including a first cylindraceous body disposed in the cylindraceous member, the first cylindraceous body including at least one lateral opening, the at least one lateral opening being configured to provide a path for leakage of fluid from the interior of the balloon, and

(v) a resilient member, the resilient member being operable to selectively seal the at least one lateral opening such that the resilient member and the at least one lateral opening cooperate to form the pressure relief valve,
the pressure relief valve in the sealing state being configured to prevent fluid from leaking out from the distal end of the interior of the balloon through the pressure relief valve at the distal end of the balloon,
the pressure relief valve in the pressure-relieving state comprising a fluid path through the pressure relief valve configured to allow fluid to leak from the distal end of the interior of the balloon through the pressure relief valve at the distal end of the balloon via the fluid path in the pressure relief valve.