Biosense Webster, Inc.

Wilfred Peter Heiner

Bart-Jan Korteling

A cryoablation catheter having an expandable cooling chamber in which the cooling fluid, preferably a gas, serves to expand the expandable cooling chamber while simultaneously cooling the chamber.

Cryoablation catheter with an expandable cooling chamber

The present invention relates to a cryoablation catheter, comprising an outer tubular body with a closed distal end to form a fluid cooling chamber and an inner tubular member having a proximal end adapted to receive fluid suitable for cryoablation and a distal end coupled to a fluid expansion nozzle wherein the inner tubular member is movable in an axial direction to thereby change the position of the nozzle within the fluid cooling chamber.

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Bakkeveen, Netherlands

Wilfred Peter Heiner