EA021870B1 - Inhalator - Google Patents

Abstract

The invention relates to medicine and may by used in neurology, narcology, therapy, in treating professional diseases, preventive medicine, rehabilitation and recovery after a disease, and also after stress mental and physical work loads. An appliance for inhaling, preferably, a gaseous mixture of xenon and oxygen, comprises a closed respiratory circuit including a patient's respiratory mask, a device for absorbing carbon dioxide and at least one respiratory reservoir coupled to a gas-distributing unit which is connected to a gas source and, via xenon and oxygen sensors, to a gas analyzer. The essence of the invention is that the closed respiratory circuit comprises a gas collector, the body of which contains the gas analyzer xenon and oxygen sensors, the device for absorbing carbon dioxide, a safety valve and at least one respiratory reservoir, wherein a non-return valve is mounted at the gas-collector input and connects the latter to the gas-distributing unit, and a shut-off valve is mounted at the gas-collector output and connects the gas collector via a respiratory tube to a bactericidal filter and to the respiratory mask, and the gas-distributing unit comprises a system for controlling gas consumption. The technical results achieved by the invention include reducing gas consumption, enhancing safety and convenience for the patient during the inhaling procedure, increasing reliability of the appliance, improving accuracy in preparing a respiratory mixture.

Description

Technical field

The invention relates to medicine and can be used in neurology, narcology, therapy, in the treatment of occupational diseases, preventive medicine, in the rehabilitation and restoration of the body after an illness, as well as after stressful mental and physical stress.

The use of inert gases in medicine is currently becoming more widespread. It is well known to use the oxygen-helium mixture by inhalation to treat lung diseases, warming the body during hypothermia (Pavlov B.N., Dyachenko A.I., Shulgin Yu.A. et al. Investigation of the physiological effects of breathing with heated oxygen-helium mixtures // Human physiology. - 2003. - T. 29. - No. 5. - P. 69-73), the use of oxygen-xenon mixture for the treatment of drug addiction (patent KI No. 2165270, 2001; Naumov S.A. et al. Role of xenon in the treatment of opium addiction // Issues of addiction. - 2002. - No. 6. - P. 13-18), adaptogenic disorders (No. 2228739, KI, 2004). At the same time, the main obstacle to the widespread adoption of noble gases in medical practice is the use of expensive equipment, the high cost of inert gases, especially xenon, which makes the inhalation procedure for treatment inaccessible to most of the population.

State of the art

A device for inhalation anesthesia with a gas mixture of xenon with oxygen (patent KI No. 2183476, publ. 06/20/2002). The device comprises a gas supply unit with sources of compressed gases, a breathing circuit including a gas analyzer, a patient’s breathing mask, an inspiratory line, an exhalation line, disinfecting elements installed on the inspiratory line and on the exhalation line, a device for absorbing carbon dioxide and water.

The disadvantages of the device include the possible loss of xenon due to the complexity of the design. In addition, it is equipped with rotameters, a cryopump, a chromatograph, which requires special maintenance, makes the device expensive, bulky, this does not allow it to be used in the field, clinics, ambulances.

A device for inhalation is known (KI No. 2317112, publ. 28.02.2008), comprising a gas supply unit connected to sources of compressed gases, a capture unit, a closed breathing circuit connected to a gas supply unit and including a patient’s breathing mask, inhalation / expiration line, a gas analyzer with sensors, a device for absorbing carbon dioxide and at least one respiratory capacity.

The disadvantages of the device include a large internal volume of the respiratory chamber, which leads to a large gas flow rate, increased respiratory resistance, and the presence of sterilization elements increases the bulkiness of the device, the location of the backup bags on the side opposite to the respiratory circuit leads to increased respiratory resistance.

The closest analogue adopted for the prototype is a device for inhalation with a gas mixture of xenon with oxygen (\ UO 2009/139657, PCT / KI 2008/000300), containing a gas supply unit connected to compressed gas sources, a capture unit, a closed breathing circuit, connected to the gas supply unit and including the patient’s breathing mask, inhalation / exhalation line, gas analyzer with sensors, CO ₂ absorber, and at least one respiratory capacity, contains a gas distribution unit connected to the patient’s breathing mask through a mag the inhalation / exhalation line and with a gas analyzer, the sensors of which are located inside the gas distribution unit, while the gas distribution unit is made in the form of a monolith with channels machined in it for distributing the gas mixture and supplying it to the inhalation / expiration line, to the gas analyzer sensors and to the recovery unit, and respiratory capacity is installed on the inhalation / exhalation line between the mask and the gas distribution unit.

In a known design, the device is connected to the respiratory circuit in series - sensors, an oxygen supply unit, a breathing bag, which increases the resistance to breathing due to the significant length of the respiratory circuit. In addition, a significant length of the respiratory circuit increases the volume of the gas mixture for consumption, which negatively affects the consumption of xenon, which is an expensive gas.

Disclosure of invention

The tasks aimed at solving this technical solution are to reduce gas consumption, increase safety and comfort for the patient during treatment, increase the reliability of the device, increase the accuracy of the preparation of the respiratory mixture.

To solve the problems in a device for inhalation with a gas mixture of xenon with oxygen, containing a closed breathing circuit, including a patient’s breathing mask, a device for absorbing carbon dioxide and at least one respiratory container interconnected with a gas distribution unit connected to a gas source and through sensors xenon and oxygen - with a gas analyzer, according to the invention, the closed breathing circuit contains a gas manifold, in the housing of which there are xenon and oxygen sensors for gas nalizatora for carbon dioxide absorption device, at least one respiratory capacity, safety valve, the gas inlet manifold a check valve, connecting it to the gas distribution

- 1 021870 block, and an outlet valve is installed that connects the gas manifold through a breathing tube with a bactericidal filter and a breathing mask, and the gas distribution unit contains a gas flow control system.

The check and shut-off valves are installed coaxially with the longitudinal axis of the gas manifold body.

The safety valve is connected to a device for capturing xenon from the spent breathing mixture.

The gas source contains xenon and oxygen cylinders, balloon pressure regulators, strainers, precision pressure regulators.

The volume of the internal cavity of the body of the gas manifold and the volume of the cavities of the devices placed on it — gas analyzer sensors, devices for absorbing carbon dioxide, a shut-off valve, a safety valve, at least one respiratory capacity — form a single closed volume.

The internal volume of the gas distribution unit is not more than 15 ml.

The gas distribution unit may have a mechanical, or electromechanical, or electric gas flow control system.

The gas flow control system is connected to the gas analyzer with feedback.

The gas flow control system may not be interconnected with the gas analyzer feedback.

The mechanical gas flow control system contains two mechanical regulators of xenon and oxygen gas flow with built-in chokes, and an additional oxygen supply tap.

The electromechanical gas flow control system contains two mechanical regulators of xenon and oxygen gas flow with built-in throttle blocks, an additional oxygen supply valve, xenon and oxygen solenoid valves, gas bypass valves for mechanical gas flow regulators, and a programmable electromagnetic valve control unit.

The electric gas flow control system contains solenoid valves for xenon and oxygen, throttles for xenon and oxygen, a programmable control unit for electromagnetic valves, an additional oxygen supply valve.

In FIG. 1 shows a schematic diagram of a device for inhalation.

In FIG. 2 shows a schematic diagram of a gas source.

In FIG. 3 shows a schematic diagram of a gas distribution unit with mechanical control of gas flow.

In FIG. 4 shows a schematic diagram of a gas distribution unit with electromechanical control of gas flow.

In FIG. 5 shows a schematic diagram of a gas distribution unit with electric gas flow control.

In FIG. 6 shows a gas manifold, a general view.

In FIG. 7 shows a gas manifold, top view.

In FIG. 8 shows a gas manifold, section AA in FIG. 6.

In FIG. 9 shows a gas manifold, section BB in FIG. 7.

A device for inhalation of a gas mixture of xenon with oxygen contains a closed breathing circuit 1, which includes a gas manifold 2, in the housing 3 of which oxygen sensors 4 and xenon 5 of the gas analyzer 6 are placed, a device 7 for absorbing carbon dioxide, at least one breathing tank 8, a valve security 9.

At the inlet of the gas manifold, a check valve 10 is installed that connects the gas manifold to the gas distribution unit 11, and at the outlet, a shut-off valve 12 is connected that connects the gas collector through the breathing tube 13 with the bactericidal filter 14 and the patient’s breathing mask 15.

The volume of the internal cavity of the body of the gas manifold 2 and the volume of the cavities of the devices placed thereon — gas analyzer sensors 4 and 5, device 7 for absorbing carbon dioxide, shut-off valve 12, safety valve 9, at least one breathing tank 8 — form a single closed volume.

This design of the gas manifold and the layout of the elements of the device with the absence of extended gas ducts provides the optimal mode of mixing the gases of the respiratory mixture both during its preparation and during inhalation. Due to the reduction in the total length of the gas ducts of the respiratory circuit, breathing resistance is reduced, which provides improved comfort for patients with inhalation.

The return 10 and shut-off 11 valves are installed coaxially with the longitudinal axis 16 of the housing 3 of the gas manifold 2.

The safety valve 9 is connected to a device for capturing xenon 17 from the spent breathing mixture.

All the above parts and components of the device for inhalation are interconnected by gas flues.

- 2 021870

The internal volume of the gas distribution unit 11 is not more than 15 ml.

The gas distribution unit 11 is connected to a gas source 18 and comprises a gas flow control system.

From a gas source 18, gaseous xenon and oxygen are supplied to a gas distribution unit 11, in which they are converted into streams with predetermined flow characteristics, depending on the requirements of the treatment technology, and mixed into a breathing mixture. The respiratory gas mixture is supplied to the gas manifold 2 through the check valve 10.

The non-return valve 10 is designed to prevent products exhaled by the patient from entering the gas distribution unit 11. The presence of a non-return valve 10 in the gas duct between the gas manifold 1 and the gas distribution unit 11 eliminates the need for disinfection of the latter after inhalation. A gas analyzer 6 with xenon 4 and oxygen 5 sensors connected to a gas manifold 2 analyzes the composition of the respiratory mixture for the amount of xenon and oxygen contained in it. Such an analysis is carried out both in preparation for inhalation, and during it. The carbon dioxide absorber 7 connected to the gas manifold 2 adsorbs carbon dioxide exhaled by the patient. As a sorbent in a carbon dioxide absorber, soda lime is used. The safety valve 9, connected to the gas manifold 2, is activated during the inhalation session if the pressure of the respiratory mixture reaches a value that can cause barotrauma in the patient. The gas mixture is discharged through the safety valve 9 to the xenon trap 17. A breathing tank 8, for example a breathing bag, is used to accumulate the required volume of the prepared breathing mixture before inhalation and to collect the gases and moisture exhaled by the patient during inhalation. The patient breathes the gas mixture through a breathing mask 15 connected to the bactericidal filter 14. The breathing mask 15 and the bactericidal filter 14 are connected by a flexible breathing tube 13 to the gas manifold 2 through the shut-off valve 12.

The gas source 18 (Fig. 2) is intended for supplying xenon and oxygen to the gas distribution unit 11 with predetermined stabilized pressure values and contains a xenon cylinder 19, an oxygen cylinder 20, balloon valves 21 and 22, pressure regulators 23 and 24, a strainer 25 precision pressure regulators 26 and 27.

The gases in cylinders 19 and 20 installed in the gas source 18 are under pressure up to 20 MPa. The pressure of the gases supplied through the gas ducts through the balloon valves 21 and 22 is lowered by the pressure regulators 23 and 24 to values from 0.3 to 0.7 MPa. In the oxygen duct, a strainer 25 is provided for purifying the gas from possible ingress of small solid particles from the cylinder 20 together with the gas, which can cause mechanical damage to the components of the device. The precision pressure regulators 26 and 27 installed at the outlet of the gas source 18 reduce the xenon and oxygen pressure to 0.02 MPa and hold this value stably for the entire period of operation of the device.

The design of the gas distribution unit 11 can be performed either with a mechanical (Fig. 3), or electromechanical (Fig. 4), or electric (Fig. 5) gas flow control system.

The mechanical gas flow control system comprises a xenon flow regulator 28 with a throttle block, an oxygen flow regulator 29 with a throttle block, an additional oxygen supply valve 30.

Xenon and oxygen enter the gas distribution unit 11 from the gas source 18 to the inputs of the regulators 28 and 29, respectively. Each of the regulators can be set in one of four states: Closed; Gas flow rate 100 ml / min; Gas flow rate 250 ml / min; Gas flow rate 500 ml / min. Three regulating throttles 01, 02. 03 are built into each regulator 28, 29, each of which is configured for the corresponding gas flow rate - 100 ml / min, 250 ml / min, 500 ml / min. Oxygen is also supplied to the valve for supplying an additional volume of oxygen 30. At the outlet of the regulators 28 and 29, xenon and oxygen are mixed in a common gas duct 31 and fed to the inlet of the check valve 10. If necessary, the valve for supplying an additional volume of oxygen 30 is opened, while enters the common gas duct 31 and is fed to the inlet of the check valve 10.

The electromechanical gas flow control system contains a mechanical xenon flow regulator 28 with a throttle block 01, 02, 03, a mechanical oxygen flow regulator 29 with a throttle block 01, 02, 03, an additional oxygen supply valve 30, gas bypass line valves 32a, 32b for mechanical gas flow regulators 28, 29, xenon supply solenoid valve 33, oxygen supply solenoid valve 34, programmable solenoid valve control unit 35.

Xenon enters the gas distribution unit 11 from the gas source 18 to the input of the regulator 28, to the inlet of the bypass valve 32a to the input of the electromagnetic valve 33. Oxygen enters the gas distribution unit 11 from the gas source 18 to the input of the regulator 29, to the inlet of the bypass line 32b, the inlet of the electromagnetic valve 34. Oxygen is also supplied to the valve for supplying an additional volume of oxygen 30. A distinctive feature of the gas distribution unit with electromechanical control of gas flow is the existing opportunity control gas flows in various modes. During mechanical control, the programmable control unit for the solenoid valves 35 must be blocked or disconnected, the solenoid valves 33, 34 are set to the closed position, the taps of the bypass gas supply lines 32a, 32b must be open. When the gas distribution unit 11 with electromechanical control is prepared for operation in this way, the gas flow control is carried out in the same way as when using the gas distribution unit with mechanical control. When electromechanically controlled, the taps 32a, 32b of the bypass gas supply lines must be closed. Mechanical regulators 28, 29 of gas flow are used to organize the supply of gases with flow rates of 100 ml / min, 250 ml / min and 500 ml / min, and the solenoid valves 33 and 34, when opened, provide gas supply to the regulators 28, 29. Duration and the opening frequency of the solenoid valves 33, 34 is set by a programmable solenoid valve control unit 35, for example a programmable logic controller. As in the gas distribution unit with mechanical control at the outlet of the mechanical gas flow regulators 28, 29, xenon and oxygen are mixed in a common gas duct 31 and fed to the inlet of the check valve 10. If necessary, for example, when the oxygen level in the breathing mixture decreases 20% of the patient, the valve 30 for supplying an additional volume of oxygen opens, while the gas also enters the common duct 31 and is fed to the inlet of the check valve 10.

It becomes possible to automatically control the preparation of gas mixtures, thereby freeing up the doctor’s time for direct work with the patient, increasing safety for the patient and the accuracy of preparing the gas mixture, due to the possible exception of manual control of the device.

The electric gas flow control system comprises a xenon flow throttle 36, an oxygen flow throttle 37, an additional oxygen supply valve 30, a xenon supply solenoid valve 33, an oxygen supply solenoid valve 34, a programmable solenoid valve control unit 35.

Xenon and oxygen enter the gas distribution unit 11 from the gas source 18 to the inputs of the electromagnetic valves 33 and 34, respectively. Oxygen is also supplied to the valve for supplying an additional volume of oxygen 30. From the exits of the valves 33, 34, gases through adjustable throttles 36, 37, adjusted to flow rates, for example, 500 ml / min, enter the common gas duct 31, mix, and are fed to the input of the non-return valve 10 The volume of supplied gases and their ratio are determined by the duration and frequency of opening of the solenoid valves 33, 34, controlled by a programmable control unit of solenoid valves 35, such as a programmable logic controller. If necessary, for example, when the oxygen level in the breathing mixture is reduced to less than 20%, the additional oxygen supply valve 30 opens, while the gas also enters the common gas duct 31 and is supplied to the inlet of the check valve 10.

The device operates as follows.

Preparation of the device for inhalation is carried out in the following sequence. The gas analyzer 6 is put in a state of readiness for measuring controlled parameters, the regulators 28, 29, the valve 30 of the gas distribution unit 11 with mechanical and electrical control, the taps 30, 32a, 32b of the gas distribution unit 11c are electromechanically controlled in the Closed position. The safety valve regulator 9 is set to the Protection position, through the shut-off valve 12, by squeezing the breathing bag 8, air is displaced from the breathing circuit 1 and the shut-off valve 12 is closed.

On the cylinders of the gas source 18, valves 21 and 22 open. The pressure regulators 23 and 24 are adjusted to the operating pressure in the range of 0.3-0.7 MPa. Xenon and oxygen after precision regulators 26 and 27 under pressure of 0.02 MPa enter the gas distribution unit 11. The order and nature of the steps taken to pre-fill the respiratory circuit with a gas mixture and inhalation depends on the type of gas distribution unit used.

When using a gas distribution unit with mechanical control, the respiratory circuit is pre-filled by setting the xenon and oxygen flow regulators to 500 ml / min. The volume of the gas mixture supplied before inhalation should be approximately 1 liter. The composition of the prepared gas mixture is controlled by the readings of the gas analyzer 6. If necessary, the gas ratio in the mixture is adjusted by setting the regulators 28, 29 in the corresponding gas supply modes. After pre-filling the breathing circuit 1 with a gas mixture, the regulators 28, 29 are set to the Closed position. The device is prepared for inhalation.

A breathing mask 15 with a snug fit is applied to the patient’s face, the shut-off valve 12 opens. The gas flow controllers 28, 29 are set to the working gas supply mode according to the doctor’s testimony. Depending on the course of the gas exchange process and according to the readings of the gas analyzer 6, the gas supply is adjusted by setting the regulators 28, 29 in the corresponding modes. The patient breathes a breathing mixture. Exhalation products are returned to the respiratory circuit 1, the exhaled carbon dioxide is adsorbed by the carbon dioxide absorber in the device 7. Inhalation lasts within 1-5 minutes. The decision to terminate the procedure is made by the doctor, evaluating the patient's condition. As

- 4 021870 means of safety during inhalation, an additional supply of oxygen can be applied using a valve 30, and if the pressure in the respiratory circuit 1 is higher than the set value set by the doctor within 30-40 cm of water. Art., provides pressure relief through the safety valve 9.

The inhalation is completed in the sequence: the shut-off valve 12 is closed, the respiratory mask 15 is removed from the patient’s face, the safety valve 9 is opened, by squeezing the breathing bag 8 the spent breathing mixture is displaced from the breathing circuit 1 into the xenon trap 17, the safety valve 9 is set to the Protection position , the shut-off valve opens 12. The cycle of preparation and conduct of inhalation is completed.

When using a gas distribution unit 11 with electromechanical control, the preliminary filling of the respiratory circuit 1 is carried out when the xenon and oxygen flow controllers are set to 500 ml / min. From the programmable control unit 35 of the control of the electromagnetic valves 33, 34, the latter are set to the Open position. The volume of the gas mixture supplied before inhalation should be equal to the set value in the control program, for example 2-3 liters. The composition of the prepared gas mixture is controlled by the readings of the gas analyzer 6. Regulation of the ratio of gases in the mixture and closing of the electromagnetic valves 33, 34 is performed automatically. The device is prepared for inhalation.

A breathing mask 15 with a snug fit is applied to the patient’s face, the shut-off valve 12 opens. The gas flow controllers 28, 29 are set to the working gas supply mode. Gases are supplied to the breathing circuit 1 in a volume directly proportional to the opening time of the electromagnetic valves 33, 34, the ratio of gases in the breathing mixture is automatically adjusted. The patient breathes a breathing mixture. Exhalation products are returned to the respiratory circuit 1, the exhaled carbon dioxide is adsorbed by the carbon dioxide absorber 7. Inhalation lasts from 1 to 5 minutes. The decision on the choice of modes of inhalation and termination of the procedure is made by the doctor, evaluating the patient's condition. Moreover, there is the possibility of using the automatic mode of inhalation and its termination. As a means of safety during inhalation, an additional supply of oxygen can be used by means of a valve 30, and if the pressure in the respiratory circuit 1 is exceeded above the set value set by the doctor within 30-40 cm of water. Art., there is a pressure relief through the safety valve 9. In the event of an emergency power outage, gas can be supplied through bypass flues bypassing the solenoid valves through taps 32a, 32b.

When inhalation is completed, the shut-off valve 12 is closed, the respiratory mask 15 is removed from the patient’s face, the safety valve 9 is opened, by squeezing the breathing bag 8 the exhaust breathing mixture is displaced from the breathing circuit 1 into the xenon trap 17, the safety valve 9 is set to the Protection position, the shut-off valve opens valve 12. The cycle of preparation and conduct of inhalation is completed.

When using the gas control unit 11 with electric control, the breathing circuit is pre-filled automatically by selecting the appropriate command on the panel of the programmable control unit 35 for controlling the electromagnetic valves 33, 34. The volume of the gas mixture supplied before inhalation should be equal to the set value in the control program, which is approximately 1 l. The composition of the prepared gas mixture is controlled by the readings of the gas analyzer. The regulation of the ratio of gases in the mixture and the closing of the electromagnetic valves 33, 34 is performed automatically. The device is prepared for inhalation.

A breathing mask 15 with a snug fit over the patient’s face opens the shut-off valve 12. By selecting the inhalation start command, the solenoid valves 33, 34 open on the panel of the programmable control unit 35. The gases are supplied to the breathing circuit in a volume directly proportional to the time the electromagnetic valves open, gas ratio in the breathing mixture is adjusted automatically. The patient breathes a breathing mixture. The products of exhalation are returned to the respiratory circuit, the exhaled carbon dioxide is adsorbed by the carbon dioxide absorber in the device 7.

Inhalation lasts between 1-5 minutes. The decision on the choice of modes of inhalation and termination of the procedure is made by the doctor, evaluating the patient's condition. Moreover, there is the possibility of using the automatic mode of inhalation and its termination. As a means of safety during inhalation, an additional supply of oxygen can be used using a valve 30, and if the pressure in the respiratory circuit 1 is exceeded above a predetermined value that is set by the doctor within 30-40 cm of water. Art., provides pressure relief through the safety valve 9.

At the end of inhalation, the shut-off valve 12 is closed, the respiratory mask 15 is removed from the patient’s face, the safety valve 9 is opened, by squeezing the breathing bag 8 the exhaust breathing mixture is displaced from the breathing circuit 1 into the xenon trap 17, the safety valve 9 is set to the Protection position, the shut-off valve opens valve 12. The cycle of preparation and conduct of inhalation is completed.

- 5,021,870

The main advantages of the proposed device for inhalation are the reduction of gas flow due to the use of an additional gas pressure stabilization device - precision pressure regulators in the gas source, due to the reduction of the internal volume of the gas space of the gas distribution unit and the volume of the closed breathing circuit provided by the use of a gas manifold;

the design of the gas manifold and the arrangement of the elements of the device with the absence of extended gas ducts ensures the optimal mode of mixing the gases of the respiratory mixture both during its preparation and during inhalation. Due to the reduction in the total length of the gas ducts of the respiratory circuit, breathing resistance is reduced, which provides improved comfort for patients with inhalation;

improving safety and comfort for the patient during treatment, increasing reliability, improving accuracy, by automating the inhalation process;

creation of devices for inhalation for the purpose of use in different climatic zones, in a hospital and in the field.

Industrial applicability

The claimed invention can be used in narcology, neurology, therapy, in the treatment of occupational diseases, preventive medicine, in the rehabilitation and restoration of the body after an illness, as well as after stressful mental and physical stress.

Claims (14)

CLAIM 1. A device for inhalation, preferably a gas mixture of xenon with oxygen, containing a closed breathing circuit, including a patient's respiratory mask, a device for absorbing carbon dioxide and at least one breathing capacity interconnected with the gas distribution unit connected to the source of gases, and through xenon sensors and oxygen - with a gas analyzer, characterized in that the closed breathing circuit contains a gas manifold, in the case of which the xenon and oxygen sensors of the gas analyzer are placed; Carbon dioxide absorption unit, safety valve and at least one breathing capacity; at the same time, a check valve is installed at the gas collector inlet connecting it to the gas distribution unit, and a shut-off valve is installed at the outlet connecting the gas collector through a breathing tube to a bactericidal filter and breathing mask, and the gas distribution unit contains a gas flow control system. 2. The device according to claim 1, characterized in that the check and shut-off valves are installed coaxially with the longitudinal axis of the gas manifold housing. 3. The device according to claim 1, characterized in that the safety valve is connected to a device for trapping xenon from the spent breathing gas. 4. The device according to claim 1, characterized in that the source of gases contains cylinders with xenon and oxygen, balloon pressure regulators, strainer, precision pressure regulators. 5. The device according to claim 1, characterized in that the volume of the internal cavity of the gas manifold housing and the volume of the cavities of the devices placed on it - sensors of the gas analyzer, devices for absorbing carbon dioxide, shut-off valve, safety valve, at least one respiratory capacity - form a single closed volume. 6. The device according to claim 1, characterized in that the internal volume of the gas distribution unit is not more than 15 ml. 7. The device according to claim 1, characterized in that the gas distribution unit is made with a mechanical system for controlling the flow of gases. 8. The device according to claim 1, characterized in that the gas distribution unit is made with an electromechanical system for controlling the flow of gases. 9. The device according to claim 1, characterized in that the gas distribution unit is made with an electrical system for controlling the flow of gases. 10. The device according to claim 1, characterized in that the gas flow control system is interconnected with a gas analyzer feedback. 11. The device according to claim 1, characterized in that the gas flow control system is not interconnected with the gas analyzer feedback. 12. The device according to claim 1, characterized in that the mechanical system for controlling the flow of gases contains two mechanical regulators of the flow of xenon and oxygen with built-in chokes, an additional oxygen supply valve. 13. The device according to claim 1, characterized in that the electromechanical gas flow control system contains two mechanical xenon and oxygen flow regulators with built-in chokes, an additional oxygen supply valve, xenon and oxygen solenoid valves, valves for bypass gas supply lines to mechanical regulators gas flow, programmable control unit solenoid valves. - 6 021870 14. The device according to claim 1, characterized in that the electrical system for controlling the flow of gases contains solenoid valves for the supply of xenon and oxygen, flow inductors for xenon and oxygen, a programmable control unit for the solenoid valves, an additional oxygen supply valve.