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

Claim 15:
16. 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, and
(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,
the catheter shaft assembly including an inner shaft, the inner shaft extending through the interior of the balloon, the inner shaft being secured to the tip assembly, the inner shaft defining a lumen, the tip assembly defining a distal opening, the lumen and the distal opening being configured to accommodate passage of an instrument through the inner shaft and through the tip assembly, the lumen and the distal opening being fluidly isolated relative to the interior of the balloon,
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.