Temperature control method and device and storage medium

Abstract

The invention relates to a temperature control method and device and a storage medium. The method comprises the steps that when the temperature of a secondary refrigerant in the freezing balloon is in a preset temperature state, the difference value between heat at a second position and heat at a first position is obtained, the first position is the position where the secondary refrigerant enters the freezing balloon, and the second position is the position where the secondary refrigerant flows out of the freezing balloon; the temperature and the pressure of the second position are obtained, and the target temperature of the first position in the next state of the state is determined according to the temperature, the pressure and the difference value; and the temperature of the first position in the next state is adjusted according to the target temperature, so that the temperature of a secondary refrigerant in the freezing balloon is within the range of the preset temperature. By means of the method, accurate control over the temperature in the frozen balloon can be achieved, and the possibility of complications caused by improper temperature control in the treatment process is reduced.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a temperature control method, device and storage medium. Background technique [0002] Atrial fibrillation is the most common clinical persistent arrhythmia, and the application of cryoablation technology to the treatment of atrial fibrillation can effectively achieve the purpose of atrial fibrillation ablation. In recent years, the application of cryoballoon catheters to cryoablation is an important technological breakthrough. The cryoablation instrument using the cryoballoon catheter is composed of a closed-loop refrigeration system and a cryoablation refrigeration system. The coolant is mainly exchanged with the closed-loop refrigeration system, and is transported into the cryoballoon to expand and absorb heat, releasing the cryogenic energy to cause the pulmonary vein and left The disintegration and necrosis of myocytes in the muscle sleeve at the atrial ju...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the temperature of the frozen balloon can only be roughly controlled, but this will cause complications due to improper temperature control, such as: phrenic nerve injury, atrial esophageal fistula, bronchial injury, etc.

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