RU20241U1 - AUXILIARY RESPIRATORY PORTABLE UNIT - Google Patents

Description

lungs in their absence, are miniaturization, simplifying the design and operation of the device, increasing the reliability of work with an increase in the life and storage of the device, as well as providing an audible alarm for respiratory attempts of the patient.

To solve these problems in the proposed portable assisted breathing apparatus containing a source of compressed gas, a pneumatic function block, an inhalation attempt sensor, a valve and a device for connecting to a patient, the function block is made in the form of an integrated pneumatic module, which includes four pneumatic relays connected to each other and contains pneumatic resistance , a check valve and an audible warning device, while the module power input is connected to a compressed gas source, one of the module outputs is connected to the atmosphere through pnevmosoprotivlenie, a second output connected to the inputs of a sound signaling device and sensor inspiratory attempts, and the third output is connected through a valve with the device acceding to a patient, also associated with the sensor inspiratory attempts. In addition, the output of the first relay in the module is directly connected to the control inputs of the second and third relays, and with its own control input, the power supply of the second relay and the inputs of the audible warning device and the inspiration attempt sensor through pneumatic resistance and a check valve, the output of the third relay is connected to the control input of the fourth relay, and the power inputs of the first, third and fourth relays are connected to the power input of the integrated pneumatic module.

The drawing shows a functional diagram of the proposed apparatus, where:

1 - pneumatic integrated module;

2.11 - pneumatic resistance;

3 - a sound signaling device;

4- probe attempting inspiration;

7, 8, 9,10 - pneumorelays with freely lying membranes;

12 - check valve.

The apparatus contains a pneumatic integrated module 1, the power input of module 1 is connected to a source of compressed gas (not shown in the drawing), the first output of module 1 is connected to the atmosphere through a pneumatic resistance 2, its second output is connected to the inputs of a sound pneumatic signaling device 3 and an inhalation attempt sensor 4, the third its output is connected via valve 5 to a patient attachment device 6, which is also connected to the inhalation attempt sensor 4.

The integrated module 1 contains a pneumatic relay 7, 8, 9 and 10, the relay output 7 is connected to the control inputs of the relay 8 and 9 and through pneumatic resistance 11 and the check valve 12 is connected to its own control input, the relay output 9 is connected to the control input of the relay 10, and the inputs power relay 7, 9 and 10 are connected to the power inputs of the integrated module 1.

The device operates as follows.

When the supply pressure is applied to the apparatus, a single pneumatic signal appears at the output of relay 7 of the integrated module 1, which, when fed to the control inputs of relay 8 and relay 9, provides a gas stream at the output of relay 10, which is directed to the patient connection device 6 through valve 5, the opening value which determines the amount of gas flow. At the same time, at the control input of the relay 7, the power input of the relay 8 and the control inputs of the audible pneumatic signaling device 3 and the sensor 4 of the inhalation attempt, the gas pressure increases through the pneumatic resistance 11 and the non-return valve 12, to the value of the upper threshold of the relay 7, When this value of the relay 7 is reached is switched, a zero signal appears at its output, switching relay 9 and relay 10, as a result of which the gas flow entering device 6 is stopped at the output of relay 10, and the waiting phase for an attempt to inhale the patient begins. The waiting time for an inhalation attempt is regulated and determined by the opening of the pneumatic resistance 2, through which the etching of the relay 1 accumulated at the control input

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gas pressure into the atmosphere. If a patient experiences inhalation at the control input of the inhalation attempt sensor 6, a rarefaction occurs, at which the sensor 6 and sound alarm 3 are turned on, as a result of which the control input of relay 1 is connected to the atmosphere, bypassing the resistance 2, and a gas flow directed at the output of relay 10 to the patient. Thus, with each attempt to inhale during the waiting phase, the device responds to it and provides a gas stream at its output, the supply of which is determined by the resistance 11 and the flow rate by the valve 5, and with each attempt to inhale, the sensor 4 turns on the air warning 3, emitting a sound signal.

In the absence or termination of the patient’s breathing attempts during the waiting phase, the gas flow automatically supplied to the patient appears at the device’s output and the cycle repeats.

The duration of gas supply to the patient (inspiratory time) is set by pneumatic resistance 11, the waiting time for an attempt to inhale is regulated by pneumatic resistance 2, and the gas flow is set by valve 5.

As a module 1, including pneumatic relays 7, 8, 9, and 10 with freely lying membranes, integral modules of the P1MI type are used commercially available.

From the description of the proposed portable assisted breathing apparatus, it can be seen that, along with ensuring that the apparatus works in the response mode to the patient’s respiratory attempts and automatically switches to the artificial lung ventilation mode in the absence of patient’s respiratory attempts, it has a simplified design based on the use of a single integral pneumatic module, and additional benefits such as:

- maximum portability due to the use of a miniature module and a limited number of elements in the device;

-increased service life and storage of the apparatus due to the use of pneumatic relays with freely lying membranes in which there are no moving mechanical parts;

- providing sound signaling of the patient's respiratory attempts.

Thus, as a result of the proposed technical solution, the portable assisted breathing apparatus ensures the achievement of the tasks and the claimed technical effect, has a simplified design, increased reliability and ease of operation of the apparatus.

The claimed technical solution, according to the author, is not obvious, and its technical effect is quite high.

The possibility of industrial use of the proposed device is not in doubt, because it compares favorably with manufactured devices of a similar purpose used in healthcare.

Claims (2)

1. A portable assisted breathing apparatus containing a source of compressed gas, a pneumatic functional unit, an inhalation attempt sensor, a valve and a patient attachment device, characterized in that the functional unit is made in the form of an integral pneumatic module comprising four interconnected pneumorelays with freely lying ones membranes and contains pneumatic resistance, a non-return valve and a sound pneumatic signaling device, while the module power input is connected to a compressed gas source, one of the module outputs is connected with the atmosphere through pneumatic resistance, the second output is connected to the inputs of the sound pneumatic signaling device and the inhalation attempt sensor, and the third output is connected through the valve to the patient connection device, also connected to the inhalation attempt sensor. 2. The apparatus according to claim 1, characterized in that the output of the first relay is connected directly to the control inputs of the second and third relays, and to its own control input, the power supply of the second relay, and the inputs of the sound pneumatic signaling device and the inhalation attempt sensor through the resistance and non-return valve, output the third relay is connected to the control input of the fourth relay, and the power inputs of the first, third and fourth relays are connected to the power input of the integrated module.