Patent ID: 11877782
Assignee: HYGEA MEDICAL TECHNOLOGY CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. The electrical control system for minimally invasive tumor therapies according to claim 5, wherein the control module is further configured to:
close, when it is determined that the received liquid level of the first working medium storage tank of the refrigeration working medium perfusion module is not lower than the first liquid level threshold value, the first tank deflation valve of the refrigeration working medium perfusion module, the first liquid charging valve of the refrigeration working medium perfusion module and the phase separation valve, and open the liquid charging deflation valve;
determine whether the perfusion port pressure intensity is less than a third pressure intensity threshold value, which is 10 KPa; and
feed back, if the perfusion port pressure intensity is less than the third pressure intensity threshold value, a message that can safely separate the Dewar conveying pipeline from the refrigeration tank body; or
keep, if the perfusion port pressure intensity is not less than the third pressure intensity threshold value, respective open/close states of the first tank deflation valve of the refrigeration working medium perfusion module, the first liquid charging valve of the refrigeration working medium perfusion module, the refrigeration valve, the phase separation valve, and the liquid charging deflation valve unchanged, until a received perfusion port pressure intensity is less than the third pressure intensity threshold value.