Abstract: A cryoablation device comprises a freezing balloon, a catheter, a storage tank, a delivery pipeline, a recovery pipeline, and a freezing element. Within the freezing balloon circulates a freezing substance, such as a low pressure liquid or gas or a gas-liquid mixture. A cryoablation method comprises the following four steps: pre-freezing, ablation, recovery, and rewarming. Advantages of the cryoablation device and method provided herein: low risk factor, easy to operate, convenient to use, exhibits high freezing efficiency, and temperature control accuracy.

Abstract: Provided is a refrigeration equipment comprising a storage tank (1), a delivery pipeline (2), a recovery pipeline (3), a cold energy generator (4), a first cold energy exchanger (5) and a second cold energy exchanger (6). The refrigeration equipment can improve the utilization efficiency of cold energy, and can also advantageously control the rewarming process in an accurate way.