Anesthetic vaporizer pressure stabilizing device

Abstract

The invention relates to the technical field of medical equipment, and discloses an anesthetic vaporizer pressure stabilizing device which comprises a liquid cavity and an evaporation cavity, the top of the liquid cavity is communicated with a buffer cavity and an air exhaust cavity, an air wheel is arranged in the buffer cavity, the air wheel is communicated with an air inlet, and the air inlet is divided into two paths. According to the pressure stabilizing device of the anesthetic evaporator, the proportion of fresh gas and carrier gas is uniquely determined by the stroke of the suction cylinder and does not change along with the change of pressure, the proportion of anesthesia is kept constant when the change of saturated vapor pressure is not considered, the operation of a doctor is more facilitated. Meanwhile, the probability of accidents during use is greatly reduced. Secondly, when steam in the evaporation cavity is extracted, the pressure of the local position can be reduced and the evaporation speed of the local position can be increased through concentrated extraction of the relatively independent sub-cavities, so that the overall evaporation speed is increased, and evaporation of gas is accelerated through stirring of the airflow stirring liquid and the stirring of the stirring paddle on the liquid surface and stirring of the liquid.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a voltage stabilizing device for an anesthesia vaporizer. Background technique [0002] see Figure 5 When the anesthesia evaporator is working, one part of the gas is fed into the evaporator, one part enters the evaporator as a carrier gas flow and carries away the saturated anesthesia vapor to the outlet, and the other part directly reaches the outlet from the bypass as a dilution flow, at the evaporator outlet The two parts of the gas are mixed to obtain an anesthetic gas flow with a target concentration. The quality of the anesthetic gas flow (ie, the exact value of the concentration) is determined by the stability of the saturated vapor pressure in the evaporation chamber and the ratio accuracy of the carrier gas flow and the dilution flow. [0003] The respiration that occurs during the use of the anesthesia machine and the rapid oxygenation during the operation w...

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Problems solved by technology

[0004] Secondly, because the design ratio is calculated according to the concentration at the saturated vapor pressure at a specific temperature and specific pressure, and when the anesthesia dosage is too large, that is, the flow rate is too fast, it will be sucked away before the evaporation reaches the saturated vapor pressure. Resulting in a low concentration ratio in the evaporator

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