The invention relates to the technical field of
medical equipment, in particular to a self-adaptive Alzheimer's
disease anesthetic gas flow limiting device which is applied to the
biomedical engineering industry and comprises a
machine body, a display screen, a multi-parameter
detector, a detection probe, a gas
output device, a gas output
pipe, a
reversing valve and a corrugated
pipe. The
reversing valve comprises a
reversing valve body and further comprises a flow descending mechanism, a reversing mechanism, a linkage mechanism, a driving mechanism and a limiting mechanism, the flow descending mechanism is arranged in the reversing valve body, the reversing mechanism is installed in the reversing valve body and connected with the flow descending mechanism, the linkage mechanism is connected with the reversing mechanism, and the driving mechanism is connected with the linkage mechanism. The limiting mechanism is connected with the driving mechanism, when
anesthetic gas flows through the flow lowering mechanism in the reversing valve, the driving mechanism is pressed to drive the linkage mechanism to rotate, the linkage mechanism drives the reversing mechanism to rotate synchronously, and the reversing mechanism swings to change the flow direction of the
anesthetic gas in the flow lowering mechanism. The output concentration of
sevoflurane is adjusted according to the volatilization conditions of
sevoflurane at different temperatures, and the situation that under the condition that volatilization of
sevoflurane is intensified at high temperature, the output
gas concentration is too high, and consequently a patient suffering from the Alzheimer's
disease inhales excessive sevoflurane, irreversible damage is caused to brain nerves of the patient is avoided.