Patent ID: 11925403
Assignee: PIEDMONT MEDSYSTEMS (ZHUHAI) CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A cryoablation catheter, comprising:
a first capsule body, mounted at a front end of a core tube, and having a front end area adapted for fitting to myocardial tissue during a cryoablation process and a rear end area exposed to blood;
the core tube, having a first looping path provided therein which is adapted for a first fluid with low temperature to be filled into and flow out of the first capsule body; and
a heat insulation part, at least partially fitting to the rear end area, adapted for reducing heat exchange efficiency between the first fluid and the blood in an atrium, wherein the heat insulation part at least covers a part of the rear end area;
wherein the heat insulation part comprises a second capsule body provided inside the first capsule body, at least part of the second capsule body fits to an inner wall of the rear end area; and
wherein the second capsule body has an opening at a distal end of the second capsule body communicated with an interior of the first capsule body, and the first looping path has an outflow port for the first fluid located inside the second capsule body, and wherein the core tube extends through the opening.