SU921564A1 - Apparatus for performing controlled and auxiliary ventilation of lungs - Google Patents

Description

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The invention relates to a medical technology, namely, devices for conducting controlled ventilation of the lungs.

A device for the artificial ventilation of the lungs is known, which includes an airflow unit, a breath attempt sensor, a connecting device and a breath rejection unit from the forced to the auxiliary Sch.

However, the known device does not provide adjustment of the breath attempt with the possibility of digitizing the scale, does not ensure the constancy of the set duration of the inspiratory phase when switching between forced and auxiliary inspiration, which limits its functionality and application.

The purpose of the invention is to adjust the sensitivity of the inhalation attempt with the possibility of digitizing the scale / 1s and ensuring the constancy of the set duration of the inspiratory phase during

switching between forced and auxiliary breath.

This goal is achieved by the fact that the apparatus for conducting controlled and auxiliary ventilation of the lungs, including a driver unit, a breath insufflation sensor, a connecting device, a forced to auxiliary breath switching unit, is equipped with a torsion regulator and a stump in my The sensor of the breath attempt sensor, while the sensitivity regulator and the inhaler switch unit are made on a non-sabotage controlled pneumatic 15 relay. .

In this case, the connecting device is made in the form of a connecting sleeve with separate channels of inhalation and exhalation, while in the channel

20 exhalation mounted adjustable ejector. ,

Claims (2)

FIG. 1 shows a block diagram of a device for artificial ventilation of the lungs 39; FIG. 2 shows a connecting device; FIG. 3 sensor breath attempts. The device contains a driver unit 1, a breath attempt sensor 2, a connecting device 3, a breath switch unit from forced to auxiliary, and is equipped with a sensitivity regulator 5 and a breath attempt sensor 6 pneumosignalizer, in this case the sensitivity regulator 5, pneumosight 6 and switch 4 inhalation is performed on cost-free controlled pneumorel (not shown), and when the connecting device 3 is made in the form of a connecting sleeve 7 with separate channels 8 and 9 of inspiration and exhalation, while in channel 9 the output is y tanovlen adjustment ejector GO, and the channel 11 interconnects the inspiratory tive of connecting sensor device 3c 2 inspiratory attempts, the sensor being provided with two inspiratory attempts sensitive element 12 and a low pressure regulator includes tor.5 sensitivity. The device works as follows. In the forced ventilation mode with a supply pressure of 1.4 kgf / sn, the driver unit 1 provides, via the connecting device 3 via channel 8, a flow of gas under appropriate pressure to the respiratory tract of the patient. This moment corresponds to the beginning of the inspiratory phase. After the end of inhalation, the pneumatic supply is switched off and the driver unit 1 creates a vacuum in the connecting device 3 and through the ejector 10 and the channel 9 into the patient's respiratory tracts. The duration of the gas flow at the outlet connecting device 3 corresponds to the duration of the expiratory phase. After the expiration of the expiratory phase, the elements of the setting block 1 return to their initial state, and at the exit of the connecting device 3 a gas flow appears and is directed to the patient's respiratory tract and the cycle repeats. The frequency of breathing cycles, the ratio of inspiration duration and expiration duration, the value of minute ventilation (gas volume blown) and the value of internal pressure (negative or positive for active or passive expiration) are controlled by the corresponding elements of the master unit 1, In the auxiliary ventilation mode, the pressure and the pressure block 4 inhale switch is supplied to the master unit 1, while the inhaler switch k block is pressure sensitive in such a way that the pressure from the pneumatic feed line, which is bounces into the driver unit 1, determines the duration of the inhalation phase and the duration of the inhalation attempt phase in the auxiliary ventilation mode. In the event that the expected inhalation attempt does not occur, the master unit 1 releases gas to the atmosphere and all elements of the device return to a similar state, the expiratory phase and the inspiratory attempt phase ends, the inspiratory phase begins and the cycle repeats. If the patient tries to inhale, it creates a negative pressure in the connecting device 3, which is fed through channel 11 to the input of sensor 2 attempts to inhale, the latter is triggered, sends a signal to the back block 1, which interrupts the phase of the attempt to inhale and begins the inhale phase. In this way, the patient receives a gas per patient attempt to respiratory attempt in accordance with the established controlled parameters of artificial ventilation, and during the transition from the forced mode to the auxiliary duration of the inspiratory phase, remains constant. And the desire to both of them relies on the established duration of the inhalation phase when switching between forced and auxiliary inhalation and adjusting the sensitivity and inhalation attempt and the possibility of equipping the device with a digitized scale for adjusting the sensitivity of the inhalation breath and quickly achieving consistent work devices with patient's breathing attempts. The proposed device is used for 28 newborns and 18 patients with children under the age of 2 years, while it is noted that the proposed device is efficient, easy to operate, portable, reliable and stable in working in various positions, including transportation of patients. Claim 1, A device for conducting controlled and auxiliary ventilation of the lungs, including a driver unit, an inhalation attempt sensor, an attachment device and a unit for switching inspiration from the forced auxiliary device, so that in order to adjust the sensitivity of the inhale with the possibility of digitizing the scale and ensuring the constancy of the established duration of the inhalation phase when switching between forced and auxiliary inhalation, it is equipped with a sensitivity and pneumocontrol regulator attempt to inhale sensor sensor, while the regulator senses heat and the inhaler switch unit Oi k are filled on; cost-free controlled pneumorrhea. 2. The apparatus according to claim 1, characterized in that, in order to operate in active expiration mode with adjustable vacuum and reduce resistance to the patient's passive expiration during small respiratory volumes and narrow respiratory paths, as well as reduce dead space, the connecting device is made as a connecting sleeve with separate channels of inhalation and exhalation, while in the canal-sdoh the adjustable ejector of informatsii is installed, taken into account during the examination, USSR Copyright Certificate 1G 721098, cl. A 61 H 31/02, 1978. TO u h .sh Pete. To sound block Phi.