Ventilation method for ensuring volume and limiting pressure of anesthesia machine and breathing machine

A technology for anesthesia machines and ventilators, which is applied in the field of anesthesia machines and breathing and ventilation guarantees. It can solve the problems of decreased comfort, large capacity deviation, and slow adjustment speed of anesthesia machines and ventilators, so as to improve comfort, reduce injuries, and improve The effect of control precision

Inactive Publication Date: 2012-04-04
BEIJING AEROSPACE CHANGFENG CO LTD
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Problems solved by technology

However, this method also has certain defects. It adopts the method of adjusting the pressure according to the fixed value to ensure the control of the capacity. Each adjustment is realized with a fixed value of ±5cmH2O, which leads to a relatively large deviation in the capacity, and it is necessary to achieve the preset ti

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  • Ventilation method for ensuring volume and limiting pressure of anesthesia machine and breathing machine
  • Ventilation method for ensuring volume and limiting pressure of anesthesia machine and breathing machine

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Embodiment Construction

[0022] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. figure 1 It is the flow chart of the realization process of the present invention, figure 1 middle:

[0023] In step 100, the system self-checks the anesthesia machine and the ventilator system when starting up, and detects the compliance C' of the anesthesia machine and the ventilator system when no patient is carried.

[0024] Connect the patient and enter the ventilation control state of the anesthesia machine and ventilator.

[0025] Monitor the patient's R and C values, and judge whether the patient's R and C values ​​are successfully estimated.

[0026] In step 110, if the R and C values ​​of the patient are not correctly estimated, the system performs volume control.

[0027] In the case of volume control, the patient is ventilated using the compliance compensation capacity guarantee method to ensure that the patient is ...

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Abstract

The invention discloses a ventilation method for ensuring volume and limiting pressure of an anesthesia machine and a breathing machine. The method comprises the following steps of: self-detecting the pipeline compliance of the anesthesia machine and the breathing machine in the startup process; in the process of starting breathing control, when the air resistance (R) value and the compliance (C) value of a patient are not monitored correctly, using a volume ventilation mode and monitoring the R value and the C value of the patient in the ventilation period; if the R value and the C value of the patient are correctly monitored, monitoring the suction volume of the patient in a suction period by a compliance compensated volume ensuring method, and performing volume ensuring processing after a set volume is achieved; and calculating a standard control pressure value P of a system, performing suction valve and expiration valve cooperative pressure control according to the value P, calculating the expiration tidal volume of the patient, a volume difference value and a pressure difference value Delta P at an expiration stage, and performing feedback compensation control on the calculated value P according to the Delta P so as to ensure the volume and the pressure.

Description

technical field [0001] The invention relates to an anesthesia machine and a breathing ventilation guarantee method, which is used to improve the problem of barotrauma caused by too large R value and too small C value under the capacity control of the anesthesia machine and ventilator, and to increase the pressure under volume ventilation. The invention relates to restricted safety, which belongs to the technical field of medical equipment manufacturing. Background technique [0002] At present, volume control or pressure control is mostly used in anesthesia machine and ventilator control. Usually, these two control methods can only correspond to special patient groups: [0003] The advantage of volume control is that it can set the tidal volume according to the doctor, and provide the patient with the specified volume of ventilation at regular intervals. The ventilation accuracy is high, and the tidal volume supplied each time is almost the same. The disadvantage is that t...

Claims

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Application Information

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IPC IPC(8): A61M16/00A61M16/01
Inventor 刁俊
Owner BEIJING AEROSPACE CHANGFENG CO LTD
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