SU1532042A1 - Apparatus for artificial ventilation of the lungs - Google Patents

Abstract

The invention relates to medical technology of rescue ventilators. To reduce the breathing resistance while reducing the weight and size parameters, the device contains a source of oxygen 1, an ejector injection device 2 with an outlet diffuser combined with the cavity of mask 3, one-way valve 6, control unit 7. 1 il.

Description

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The invention relates to medical technology of rescue ventilators.

The aim of the invention is to reduce the resistance to breathing while decreasing the overall dimensions.

The drawing schematically shows a device for artificial ventilation of the lungs.

A device for artificial ventilation of the lungs contains an oxygen source 1 in the form of a chemical oxygen generator, an ejector injection device 2 with an outlet diffuser combined with the cavity of mask 3.

The suction part of the ejector injection system ycTpoiicTBa 2 is connected to the aerosol filter 4 and the valve m 5 exhalation. The nozzle of the ejector discharge device 2 is connected by a flexible hose through a one-way valve 6 with a source of oxygen 1. Control unit 7 is a time-measuring device, such as a multivibrator, with the ability to control the frequency of the pulses and their duty cycle, combined with a power source, and serves to control the one-way valve 6. To prevent pressure in the oxygen source 1 of oxygen at the normal service level valve 8.

The device works as follows.

A mask is put on the victim, a source of oxygen 1 and a control unit 7 are included. During the inhalation phase, oxygen from the oxygen source 1 through the open one-way valve (enters the nozzle of the ejector injection device 2. The gas flow through the diffuser enters the mask 3, ensuring the filling of the levers. At the same time, using the diffuser directly on the mask reduces the oxygen flow from the gas distribution side uz. Juv. Simultaneously with the supply of sour to the lungs, the ejector provides, due to its suction effect, the control of additional gas in the lungs cut

filter 4. At the end of the inspiratory phase, the control unit closes the valve-6, the expiratory phase begins. Under the effect of overpressure in the lungs, the exhalation valve 5 opens, which is kept closed in the inspiratory position due to a vacuum in the suction line of the ejector, and the exhaled gas through the valve 5 is vented to atmosphere. The pressure in the lungs and in the surrounding atmosphere levels off. The pressure of the oxygen source 1 at the expiratory phase is increased by i30-60% compared with the pressure at the inspiratory phase by eliminating the release of generated oxygen. So source I

Oxygen in the expiratory phase is used as a pressurized receiver, which allows more fully to use the energy of the gas emitted and the gas O gas. If the pressure in the source I reaches oxygen, the output of the permissible one is the safety valve 8.

The device increases the efficiency of using oxygen energy, reduces its consumption, as well as reduces the resistance to breathing and the effect of increasing carbon dioxide content by reducing the harmful gas exchange volume, and ensures a reduction in mass and dimensional parameters.

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Claims (1)

Invention Formula A device for artificial ventilation of the lungs, containing an oxygen source in the form of a chemical oxygen generator with a safety valve, an ejector injection device with an outlet diffuser, an atmospheric air filter, a mask, an exhalation valve and a control unit, characterized in that, in order to reduce breathing resistance while reducing weight and size 0 indicators, the source of oxygen supply is connected to the injection device by means of single volt, a new valve, while the outlet diffuser of the ejector injection device is combined with the mask cavity.