Apparatus for artificial ventilation of lungs and inhalation narcosis

FIELD: medical equipment.

SUBSTANCE: apparatus for artificial ventilation of lungs and inhalation narcosis can be used for emergency service and has unit for artificial ventilation of lungs, anesthetic unit and unit for alarm switch of anesthetic. Unit for artificial ventilation of lungs has oxygen discharge changing unit, flow meter, pneumatic pulse oscillator, nonreversible pneumatic valve which has access to patient's mask. Anesthetic unit has gas relation changing unit and mixer which has access to patient's mask. Unit for alarm switching anesthetic off is made is made in form of comparison unit which has pneumatic valve mounted in anesthetic feed line, two pneumatic relays and two regulators. Apparatus provides improvement in sensitivity to reduction in oxygen pressure in gas mixture.

EFFECT: widened operational capabilities; simplified exploitation; improved safety.

2 dwg

 

The invention relates to medical engineering, in particular to apparatus for the implementation of artificial lung ventilation (ALV) and inhalation anesthesia. It can be used in disaster medicine, emergency and urgent care.

Known apparatus for artificial ventilation of the lungs and inhalation anesthesia, allowing ventilation and inhalation anesthesia (patent of Russian Federation №2080884, And 61 M 16/01, 1994).

However, this ventilator can be done only manually, which does not allow to achieve the required constant process of IVL.

The closest in technical essence is the device for artificial ventilation of the lungs and inhalation anesthesia, consisting of a block of artificial ventilation of the lungs that contains the gearbox is connected to the backbone oxygen supply and generator pneumatic pulses, managing non-reversible pneumatic valve connected to the mask of the patient, site, change the flow rate of oxygen and the flow meter from the block anesthesia containing the node changes the ratio of gas and air mixer connected to the mask of the patient, and unit emergency shutdown anesthetic (patent of Russian Federation №957902, And 61 M 16/00, 1981).

However, in this apparatus the generator pneumatic pulse operates in the same frequency range, and adjusting and about the ERKA gas concentration in the mixture requires medical personnel a number of transactions to obtain the necessary information. In addition, emergency shutdown anesthetic occurs only in the absence of oxygen, used in a mixture, or a sharp decrease in its pressure to a value close to zero.

The technical result of the invention is the enhanced operational capabilities, simplifying the operation of the apparatus and increase its security by increasing sensitivity, reducing the pressure of oxygen in the gas mixture.

This technical result is achieved by the fact that in the known apparatus for artificial ventilation of the lungs and inhalation anesthesia, consisting of a block ALV containing a reducer connected to the backbone oxygen supply and generator pneumatic pulses, managing irreversible pneumocele connected to the mask of the patient, the node changes the flow of oxygen and the flow meter, block anesthesia containing the node changes the ratio of gas and air mixer connected to the mask of the patient, and unit emergency shutdown anesthetic, characterized in that the generator pneumatic pulses through two parallel installed toggle switch is connected to the supply line oxygen unit mechanical ventilation, in which the mixer pneumatic button, the node changes the ratio of gases is made in the form of two adjustable chokes, each of which successively is outinen meter one pair of throttle flow meter installed in the supply line to the anesthetic, and the other in the supply line to the oxygen block anesthesia unit emergency shutdown anesthetic in the form of node comparisons, consisting of a valve installed in the supply line anesthetic, two pneumocele, the first of which is normally closed, and a second normally open, and the two gears, one of which with the ability to adjust the output pressure connects the camera offset of the first pneumocele with the backbone oxygen of block anesthesia before an adjustable orifice and the second chamber of the first control pneumocele with the backbone oxygen of block anesthesia after an adjustable throttle, at first pneumocele the camera power supply is connected to the camera power and control of the second pneumocele and with its output chamber, and the second pneumocele the camera power supply is connected to the gearbox output unit mechanical ventilation with pneumatic valve installed in the supply line anesthetic, and with its output by the camera, while the output chamber of the first pneumocele, the output of the camera and the camera displacement of the second pneumocele connected with the atmosphere.

Figure 1 presents the block diagram of the proposed apparatus; figure 2 is the device node of the comparison unit emergency shutdown anesthetic.

Apparatus for the artificial island is tilesii lungs and inhalation anesthesia consists of three blocks: block IVL I, block anesthesia 2 and unit emergency shutdown anesthetic 3.

Block IVL 1 contains the gear 4 connected to the supply line of the oxygen generator pneumatic pulses 5, Manager of uni-directional pneumatic valve 6 connected to the mask of the patient 7. In addition, the unit contains the node changes the flow of oxygen in the form of an adjustable inductor 12 and the flow meter 13.

Block anesthesia 2 contains the node changes the ratio of gases, made in the form of two adjustable throttles 14 and 15, each of which is serially connected respectively with flow meters 16 and 17, with the first pair of throttle flow meter installed in the supply line to the anesthetic, and the second in the supply line to the oxygen block anesthesia. This unit includes a mixer 11 with the mask of the patient 7. Generator pneumatic pulses 5 through two parallel installed toggle switch on 8 and 9 is connected to the supply line oxygen block anesthesia, in which the mixer 11 is installed pneumatic button 10.

Unit emergency shutdown anesthetic 3 made in the form of node comparisons 18, consisting of a normally closed pneumatic valve 19 installed in the supply line anaesthetic and normally closed pneumocele 20, normally open pneumocele 21 and the two gears 22 and 23. The gear 22 is made with the possibility of re is of lirovaniya output pressure and connects the camera offset pneumocele 20 with the backbone oxygen of block anesthesia 2 front adjustable choke 14, and the gear 23 to the camera control pneumocele 20 with the backbone oxygen of block anesthesia after 2 adjustable inductor 14, and pneumocele 20 camera power supply connected to the camera power and control pneumocele 21 and with its output by the camera, and pneumocele 21 camera power supply is connected to the gearbox output unit 4 IVL 1, with the valve 19 and its output camera, with output camera pneumocele 20, the output of the camera and the camera offset pneumocele 21 are connected with the atmosphere.

In the mode of ventilation apparatus operates as follows.

After the oxygen supply from the power source of the oxygen of the latter enters the inlet port (not shown) of the unit ventilator 1 and gear 4. Unit 4 reduces the pressure to 0.14 MPa, and oxygen is fed to the input of the generator 5, and from there to the inputs of switches 8 and 9 and the valve 6. In parallel, via the inductor 12 is operated valve 6, providing an intermittent supply of oxygen. After selecting the desired frequency band included toggle switch 8 or 9.

As soon as a signal that occurs when the line pressure supply of oxygen, is supplied to the generator 5, its output starts to form pulses of rectangular shape. The pulse frequency within the selected range is set by adjusting the generator 5 known methods. The pulses from the output of the generator to control the operation of the valve 6, who carries out the intermittent supply of oxygen to the mask of the patient 7. Using the throttle 12 is regulated gas supply (gas flow) in the mask of the patient 7, and the flow meter is ow control.

In the mode of inhalation anesthesia apparatus operates as follows. Anesthetic such as nitrous oxide, from the power source is applied to the input fitting (not shown) of the block anesthesia 2. Then through the throttle 15 and the flow meter 17 anesthetic is applied to one input of the mixer 11. At the same time the oxygen from the inlet fitting connected to a source of oxygen, is fed to the input gear 22 and the inductor 14. Oxygen from the outlet ports 14 through the flow meter 16 is fed to another input of the mixer 11. The resulting mixture is fed into the mask of the patient 7.

Unit emergency shutdown anesthetic 3 works as follows.

On fitting in" site comparison 18 from line supply of oxygen to the channels 3(2) and 11(1) gas (oxygen). Since channel 3(2) is open, the gas gets to the exit 13(2) to the fitting "g". At this time, the channels 11(2) and 11(1) are closed, and the output 1(1) through channels 3(1) and 13(1) is connected with the atmosphere.

From the gear 22 on the fitting "b" block comparison 2 supplied oxygen under a pre-established reference pressure (set value), determining the pressure unit emergency shutdown anesthetic 3. Oxygen enters the chamber, medeniyetleri 20 through the channel 12(1). Is the opening of the channel 11(1) and closing the channel 3(1). Oxygen through channels 1(1) and 12(2) enters the chamber control pneumocele 21. This results in the closing of channel 3(2) and the opening of the channel 11 (2), and the pressure of the oxygen is removed from fitting "g" and it expires in the atmosphere. The scheme is set to the initial position, in which the pneumatic valve 19 is closed.

After the oxygen supply line through the gear 23 and the fitting "a" is served at channel 2(1) pneumocele 20. This pressure control scheme. It is variable in magnitude. With the increase of the pressure control circuit switches pneumocele 20. Opens channel 3(1) and closes the channel 11(1). The magnitude of this pressure is called the pressure of the schema.

Oxygen through the channels 12(2), 3(1) and 13(1) to the atmosphere. Switches pneumocele 21, i.e. open channel 3(2) and closes the channel 11(2). Oxygen from the camera power supply pneumocele 21 through channels 3(2) and 13(2) is supplied to the fitting "g". Pneumatic valve 19 is opened, and the anesthetic begins to enter the mask of the patient together with oxygen.

If the pressure in the line supplying oxygen block anesthesia 2, and hence, the fitting "a" decreases, pnevmochambe site comparison 18 moves to its original position, that is, the closing valve 19 and stops the flow of anesthetic in the ACMS patient 7.

In case of emergency feed the patient pure oxygen is used, the button 10.

The present invention allows to expand operational capabilities, to simplify operation of the device and to improve its security by increasing sensitivity, reducing the pressure of oxygen in the gas mixture.

Apparatus for artificial ventilation of the lungs and inhalation anesthesia characterized by the presence of block-lung ventilation, block anesthesia and unit emergency shutdown anesthetic, the block of artificial ventilation of the lungs contains connected in series, the node changes the flow of oxygen, air flow meter, non-reversing valve connected to the mask of the patient, and also connected through a gearbox to supply line oxygen generator pneumatic pulses, one output of which is connected with the uni-directional valve, and the other outputs via two parallel installed toggle switch connected to the supply line oxygen block anesthesia, block anesthesia contains a mixer, connected to the mask of the patient, and site changes the ratio of gases, made in the form of two adjustable chokes, each of which is serially connected to the flow meter, and one pair of throttle flow meter installed in the supply line to the anesthetic, and the other in the master of the eh oxygen supply block anesthesia moreover, in the pipeline supply oxygen block anesthesia before the mixer is installed pneumatic button, the unit emergency shutdown anesthetic in the form of node comparisons, consisting of a valve installed in the supply line anesthetic, two pneumocele, the first of which is normally closed, and a second normally open, and the two gears, one of which is made with the possibility of adjustment of output pressure, connects the camera offset of the first pneumocele with the supply line oxygen block anesthesia before an adjustable orifice and the second chamber of the first control pneumocele with the supply line oxygen block anesthesia after an adjustable throttle, and at first pneumocele camera power supply connected to the camera power and control of the second pneumocele and with its output chamber, and the second pneumocele the camera power supply is connected to the gearbox output unit mechanical ventilation, pneumatic valve installed in the supply line anesthetic, and with its output by the camera, while the output chamber of the first pneumocele, the output of the camera and the camera displacement of the second pneumocele connected with the atmosphere.



 

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