Portable device for treating mild hypothermia in nasal cavity

Abstract

The invention provides a portable device for treating mild hypothermia in a nasal cavity, and belongs to the technical field of medical equipment. The treatment device comprises a machine shell, a liquid oxygen storage tank, a temperature return evaporator, a fluid controller, a humidifier, a connecting catheter and a nasal cavity balloon catheter, wherein the liquid oxygen storage tank is mounted on a base of the machine shell, the input end of the temperature return evaporator is connected with the output end of the liquid oxygen storage tank, the input end of the fluid controller is connected with the output end of the temperature return evaporator, the input end of the humidifier is connected with the output end of the fluid controller, the output end of the humidifier is connected with the connecting catheter, one end, away from the humidifier, of the connecting catheter is connected with the nasal cavity balloon catheter, and the balloon is arranged at one end, away from the connecting catheter, of the nasal cavity balloon catheter. By means of the treatment device, the temperature of brain tissue is rapidly reduced to the mild hypothermia level, out-of-hospital field first aid can be achieved, critical patients can be effectively treated in time, the death rate and the sick and disabled rate are reduced, and the critical patients can gain benefits to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and relates to a portable sub-low temperature treatment device in nasal cavity. Background technique [0002] Hypothermia therapy has a long history. As early as the 1940s, some foreign scholars used it for extracorporeal circulation heart surgery in order to achieve the effect of brain protection. Then in 1987, scholars around the world developed mild hypothermia (33-35°C) for the whole body. There is a general consensus on the protective effect of the method on the brain, and more and more mild hypothermia therapy is used clinically to avoid or improve various types of nervous system function damage. [0003] At present, sub-hypothermia treatment on the surface of the body is mostly used in clinical sub-hypothermia treatment. Representative products are ice blankets, ice caps, alcohol sassafras baths, etc. The "sub-hypothermia treatment instrument" adopted by some hospitals in recent ...

AI Technical Summary

Problems solved by technology

[0003] At present, sub-hypothermia treatment on the surface of the body is mostly used in clinical sub-hypothermia treatment. Representative products are ice blankets, ice caps, alcohol sassafras baths, etc. The "sub-hypothermia treatment instrument" adopted by some hospitals in recent years also belongs to the body surface cooling technology. , the difference is that the body surface "mild hypothermia therapy instrument" product has increased the control performance, and the body surface cooling technology has the following outstanding problems: First, the cooling speed is slow, and the target temperature for clinical needs cannot be achieved within the best time , usually, the cases that are clinically suitable for mild hypothermia treatment are critically ill patients with cranial nerve damage. The best time window for mild hypothermia treatment is 30 minutes after the onset, or the earlier the better, the later the effect is worse, and the current body Surface cooling technology takes more than 4 hours to reach the target temperature. Although it has a certain effect in the cooling process, it misses the best time window, which affects the efficacy of mild hypothermia

Second, the adverse reactions of body surface mild hypothermia technology are chills and muscle tremors. Clinically, patients often stop the mild hypothermia treatment because they cannot bear the severe chills during the treatment process. It is an adverse event that is strictly controlled clinically

The fourth is to increase the work intensity and working hours of medical staff

These disadvantages are the fundamental reasons why the body surface mild hypothermia technology has not been widely used clinically.

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