SU456622A1 - Cardiopulmonary resuscitator - Google Patents

Description

one

The invention relates to medical technology and can be used for resuscitation with complete cardiac arrest.

A pneumatically driven cardiopulmonary resuscitator is known, comprising a housing with control knobs and monitoring devices, a massager for indirect heart mass, a device for artificial ventilation of the lungs, a device for adjusting the volume of inhalation.

However, such a rescuer does not provide for regulation of the dosing of the volume of the breathing mixture from zero to the maximum threshold value with a given dosage step regardless of the duration of the respiratory pulse at the duration of the respiratory pulse given by the control unit. In addition, it does not provide continuous as well as simultaneous operation of the rescuer from two cylinders connected in parallel.

In order to ensure adequate ventilation of the lungs during resuscitation and the ability of the resuscitator to be fed with various gases, it is equipped with metering tanks with a set of end pneumatic switches according to the number of steps for adjusting the volume of breath, a regulator connected to the gas supply network and metering tanks, a pneumatic switch and a pneumatic channel, the body is made of two parts connected by a hinge.

FIG. 1 depicts the proposed cardiopulmonary resuscitator in expanded form; in fig. 2 - schematic diagram of the pneumatic actuator.

The resuscitator includes a housing consisting of two parts 1 and 2 connected by a hinge 3, control knobs 4, control devices 5 and 6, a massager 7 for indirect heart massage, a device 8 for artificial ventilation of the lungs, a breath regulator 9, dosing containers 10 with a set of end pneumatic switches 11 according to the number of steps for adjusting the volume of inspiration, regulator 12 connected to a gas supply network 13 and metering containers 10, pneumatic switch 14 and pneumatic valve 15.

The device works as follows.

If two gas cylinders, such as nitrogen and oxygen, are connected to the resuscitator, then the pneumotumboiler 16 is placed in an inoperative position, while the actuator circuit operates simultaneously from two gas cylinders. Gas from one cylinder, such as nitrogen, flows through the pneumococcus, tapan 15 to pressure stabilizers 17 and 18. From the pressure stabilizer 17, the gas enters the pneumatic valve 19, and from the pressure stabilizer 18 through the pneumo-toggler 20 to the control unit 21.

Gas from another cylinder, such as oxygen, is fed to the pressure regulator 12, and then

on the device 8 for mechanical ventilation. The process of artificial ventilation of the lungs is controlled by the regulator 9 of the inspiratory volume, the pneumatic switches 14 and 22, and the regulator 23 of the pressure.

If one gas cylinder, for example oxygen, is connected to the resuscitator, then the pneumo-tumbler 16 is placed in the operating position, the pneumatic valve 15 is activated and the entire pneumatic actuator circuit operates from a single gas.

Before switching on the resuscitator, a switch of volume 11 sets the required volume of gas for artificial ventilation of the lungs. In this case, depending on the position of the pneumatic switch 11, one, two or more containers are connected to the artificial ventilation circuit of the lung. The initial pressure in the metering containers is created by the regulator 12. The resuscitator is turned on by the pneumo-tumbler 20. In this case, the gas pressure from the stabilizer 18 is supplied to the control unit, which has two outputs. At one of the outlets, pneumatic impulses appear that control the pneumatic valve 19, which periodically applies a gas pressure to the massager 7 set by the pressure stabilizer 18. Psmen this pressure can adjust the pressure of the massager on the chest of the patient. The magnitude of the pressure is indirectly measured by the control device 3. The second output of the control unit 21 is connected to two pneumatic switches 14 and 22. In the absence of a pneumatic impulse, the pressure set by the regulator 12 flows through the pneumatic switch 14 on the container 10. When the pneumatic impulse arrives, the filling of the dosing tanks stops and the overpressure through the pneumatic switch 22 is supplied to the device 8. The pressure of the air pulse is regulated by means of the pressure regulator 23, and is measured using a test instrument and 6. The check valve 24 serves for protection of the patient from prevyscheni pressure above the physiological norm.

Subject invention

1. A cardiopulmonary resuscitator, comprising a housing with control knobs and monitoring devices, a massager for indirect heart massage, a device for artificial ventilation of the lungs, and an inspiratory volume regulator, characterized in that in order to ensure adequate ventilation of the lungs during resuscitation and the ability of the resuscitator to be supplied with various gases, it is equipped with metering tanks with a set of terminal pneumatic switches according to the number of steps for adjusting the volume of breath, with a regulator connected to the gas supply network and metering tank E, pnevmopereklyuchatelem and air valve.

2. Reanimator on and. 1, characterized in that the housing is made of two parts connected by a hinge.

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