Intravascular mild hypothermia therapy device

Abstract

The invention relates to an intravascular mild hypothermia therapy device which comprises a normal saline storage box, a first pipeline, an electronic refrigerator, a second pipeline, a central venous catheter and a third pipeline. The normal saline storage box and the electronic refrigerator are communicated through the first pipeline. The electronic refrigerator and the central venous catheter are communicated through the second pipeline. The central venous catheter and the normal saline storage box are communicated through the third pipeline. A pushing pump is arranged on the second pipeline. The liquid inlet end of a honeycomb meshed heat exchange pipe inside the electronic refrigerator is communicated with the first pipeline, and the liquid outlet end of the honeycomb meshed heat exchange pipe is communicated with the second pipeline. Normal saline inside the normal saline storage box is conveyed by the pushing pump into the honeycomb meshed heat exchange pipe and then cooled by an electronic refrigeration sheet into low-temperature normal saline, one end of the central venous catheter enters a lower plenum central vein from a human body femoral vein puncture opening, a temperature difference between the circularly-flowing normal saline and blood inside the central venous blood vessel, and heat exchange between the surface of the central venous blood vessel and the blood in the patient blood vessel is performed.

Description

Technical field [0001] The present invention relates to the technical field of medical devices, in particular to an intravascular hypothermia treatment device. Background technique [0002] Mild hypothermia technology has experienced more than 70 years of development history. A large number of studies at home and abroad have confirmed the clinical effects of appropriate hypothermia and methods for brain protection. At present, the international medical community divides hypothermia into mild hypothermia (mild hy-pothmia) 33-35°C, moderate hypothermia (modergte hypothermia) 28-32°C, and deep hypothermia (profound hypothermia) below 16°C. In 1993, Chinese scholars classified the former two as sub-hypothermia, and then this concept was widely cited by domestic and foreign counterparts. Mild hypothermia technology gradually developed and matured in the 1950s and 1960s. From the mid to late 1980s to the 1990s, the experimental research of mild hypothermia for severe head injury achie...

AI Technical Summary

Problems solved by technology

Since the 1990s, traditional cooling measures, such as infusion of 4°C saline, ice cubes, alcohol scrub baths, water circulation cooling blankets, and application of hibernation mixture, have caused chills, muscle tremors, arrhythmia, blood pressure drop, and coagulation disorders in patients. The incidence rate is high, and the effect of lowering the core temperature is poor. The existing sub-hypothermia treatment equipment is cumbersome to operate, and the work intensity of medical staff is high.

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