Passive portable anesthesia machine

Abstract

The invention relates to a passive portable anesthesia machine. The passive portable anesthesia machine comprises a box, a breathing pipeline, an exhaling loop and an oxygen pipe, and is characterized in that an anesthetic gas concentration regulating and controlling device is arranged on the upper part inside the box; an anesthetic waste gas absorbing device is mounted at the bottom inside the box; the anesthetic waste gas absorbing device comprises an anesthetic storage tank, a waste gas absorbing particle storage tank A and a waste gas absorbing particle storage tank B; a waste gas pressure reducing valve A is connected with the bottom of the waste gas absorbing particle storage tank A; a primary anesthetic exhausting pipe and a secondary anesthetic exhausting pipe are connected with the bottom of the anesthetic gas concentration regulating and controlling device; one end of the exhaling loop extends out of the box, and the other end of the exhaling loop is communicated with the waste gas absorbing particle storage tank B; the oxygen pipe is communicated with the anesthetic gas concentration regulating and controlling device; the breathing pipeline is communicated with the secondary anesthetic exhausting pipe. The passive portable anesthesia machine has the advantages of being light in weight, wide in application range, free of an external power supply, capable of maintaining the concentration of a volatile anesthetic constant, and capable of maintaining the temperature of the anesthetic constant by heat generated during reaction of water and carbon dioxide in gas exhaled by a patient with the waste gas absorbing device.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a passive portable anesthesia machine. Background technique [0002] Inhalation anesthesia is an important part of general anesthesia. Its characteristics are: fast onset, quick recovery, strong controllability, stable breathing cycle, no metabolism in the body and no residue, etc. It is currently widely used in the field of anesthesia and labor pain. The traditional evaporator is equipped with a large amount of cotton yarn with strong siphon force and a large surface area, which is convenient for volatile anesthetic drugs to volatilize from liquid to gaseous state, and the bottom of the cotton yarn is in contact with the liquid medicine. The exogenous oxygen entering the evaporator is divided into the part that passes through the volatile anesthetic (normal path) and the part that does not pass through the volatile anesthetic (bypass) through the control device. As the...

AI Technical Summary

Problems solved by technology

The above-mentioned anesthesia machine is heavy and requires an external power supply or battery, which is not easy to carry, so it cannot be used in outpatient and emergency operating rooms of hospitals, operating rooms of primary hospitals, field hospitals, and medical emergency vehicles.

In addition, the production of traditional anesthesia machines is difficult, with high technical requirements and complex parameters, requiring a lot of experiments and test costs

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