CN220002634U - Breathing machine system and breathing machine - Google Patents
Breathing machine system and breathing machine Download PDFInfo
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- CN220002634U CN220002634U CN202321130171.7U CN202321130171U CN220002634U CN 220002634 U CN220002634 U CN 220002634U CN 202321130171 U CN202321130171 U CN 202321130171U CN 220002634 U CN220002634 U CN 220002634U
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 49
- 238000007664 blowing Methods 0.000 claims abstract description 25
- 239000003570 air Substances 0.000 claims description 245
- 239000001301 oxygen Substances 0.000 claims description 113
- 229910052760 oxygen Inorganic materials 0.000 claims description 113
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 93
- 230000003434 inspiratory effect Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 6
- 239000012080 ambient air Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 36
- 238000000889 atomisation Methods 0.000 description 6
- 244000144985 peep Species 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The utility model belongs to the technical field of breathing equipment, and particularly relates to a breathing machine system and a breathing machine. The breathing machine comprises an inhalation pipeline, a breather valve and an air blowing pipeline, wherein the breather valve is provided with an inhalation port, an air outlet and an air vent, the air outlet end of the inhalation pipeline is connected to the inhalation port, the breather valve is provided with an air outlet pipeline communicated with the air outlet, and the air vent is used for a patient to inhale through the inhalation pipeline and exhale outwards through the air outlet pipeline; the expiratory end flow sensor is arranged on the expiratory pipeline, the first end of the air blowing pipeline is connected to the air suction pipeline, the second end of the air blowing pipeline is provided with two air outlet branch pipelines, one air outlet branch pipeline is connected to the expiratory pipeline at the front end of the expiratory end flow sensor, and the other air outlet branch pipeline is connected to the expiratory pipeline at the rear end of the expiratory end flow sensor. And water is blown to the expiration pipeline from the front end and the rear end of the expiration end flow sensor, so that the detection precision of the expiration end flow sensor is prevented from being influenced by condensed water in the expiration pipeline.
Description
Technical Field
The utility model belongs to the technical field of breathing equipment, and particularly relates to a breathing machine system and a breathing machine.
Background
The breathing machine is a device which can replace, control or change normal physiological breathing of people, increase the ventilation quantity of lungs, improve the breathing function and reduce the breathing power consumption. The breathing machine is provided with a breathing valve, an inhalation pipeline of the breathing machine is connected to an inhalation port of the breathing valve, the breathing valve is provided with an exhalation pipeline communicated with an exhalation port, and a patient inhales and exhales through the breathing valve. The flow sensor is arranged on the expiration pipeline and detects the gas flow in the breathing machine and converts the gas flow into other output signals, so that the automatic regulation and control of the breathing machine are realized, and the accuracy of the monitoring data of the flow sensor influences the accuracy of the breathing machine parameters.
Although the flow sensor in the existing breathing machine can detect the gas flow, after warm gas exhaled by a patient enters an exhalation pipeline, water vapor in the exhalation gas is easy to condense into water in the exhalation pipeline due to the temperature difference between the surface of the exhalation pipeline and the exhaled gas, and the measurement accuracy of the temperature sensor is reduced.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the problems that the flow sensor of the existing breathing machine is easily influenced by condensed water in an expiration pipeline and the measurement accuracy of a temperature sensor is reduced, the breathing machine system and the breathing machine are provided.
In order to solve the technical problems, in one aspect, an embodiment of the present utility model provides a ventilator, including an inhalation pipeline, a breather valve and an air blowing pipeline, wherein an air inlet end of the inhalation pipeline is used for communicating with an air source, the breather valve has an air suction port, an air exhaust port and an air vent, an air outlet end of the inhalation pipeline is connected to the air suction port, the breather valve has an air exhaust pipeline communicated with the air exhaust port, and the air vent allows a patient to inhale through the inhalation pipeline and exhale outwards through the air exhaust pipeline;
the device is characterized in that an expiratory end flow sensor is arranged on the expiratory pipeline, a first end of the air blowing pipeline is connected to the air suction pipeline, a second end of the air blowing pipeline is provided with two air outlet branch pipelines, one air outlet branch pipeline is connected to the expiratory pipeline at the front end of the expiratory end flow sensor, and the other air outlet branch pipeline is connected to the expiratory pipeline at the rear end of the expiratory end flow sensor.
Optionally, the air suction pipeline comprises an air pipeline, a high-pressure oxygen pipeline, a low-pressure oxygen pipeline, an air-oxygen mixer and a mixing pipeline, wherein the air inlet end of the air pipeline is used for being connected with a high-pressure air source, the air inlet end of the high-pressure oxygen pipeline is used for being connected with a high-pressure oxygen source, and the air inlet end of the low-pressure oxygen pipeline is used for being connected with a low-pressure oxygen source;
the air outlet ends of the low-pressure oxygen pipeline, the air pipeline and the high-pressure oxygen pipeline are communicated with the air inlet of the air-oxygen mixer, the air inlet end of the mixing pipeline is communicated with the air outlet of the air-oxygen mixer, and the air outlet end of the mixing pipeline is connected to the air suction port of the breather valve;
the first end of the air blowing pipeline is provided with a plurality of air inlet branch pipelines, one ends of the air inlet branch pipelines are respectively communicated with the air pipeline, the high-pressure oxygen pipeline and the low-pressure oxygen pipeline, the other ends of the air inlet branch pipelines are respectively communicated with the two air outlet branch pipelines, and each air inlet branch pipeline is provided with a first switch valve for selectively opening one of the air inlet branch pipelines.
Optionally, the ventilator further includes an atomization pipeline and a first reversing valve, an air inlet end of the atomization pipeline is communicated with a first air outlet of the first reversing valve, air inlet ends of two air outlet branch pipelines are communicated with a second air outlet of the first reversing valve, each air inlet branch pipeline is communicated with an air inlet of the first reversing valve, and the air inlet is selectively communicated with one of the first air outlet and the second air outlet;
and each outlet branch pipeline is provided with a second switch valve, and the second switch valve is used for controlling the on-off of the corresponding outlet branch pipeline.
Optionally, a second reversing valve is installed on the high-pressure oxygen pipeline, the high-pressure oxygen pipeline is communicated with a first inlet of the second reversing valve, the low-pressure oxygen pipeline is communicated with a second inlet of the second reversing valve, and an outlet of the second reversing valve is selectively communicated with one of the first inlet and the second inlet;
the two air inlet branch pipelines are arranged, one air inlet branch pipeline is connected to the air pipeline, and the other air inlet branch pipeline is connected to the high-pressure oxygen pipeline at the rear end of the second reversing valve.
Optionally, the breathing machine further comprises a medical oxygen generator and a medical air compressor, the air inlet end of the high-pressure oxygen pipeline is connected to the medical oxygen generator, the air inlet end of the air pipeline is connected to the medical air compressor, the medical oxygen generator forms the high-pressure oxygen source, and the medical air compressor forms the high-pressure air source.
Optionally, a pressure release valve, a far-end pressure sensor, a filter, an air source one-way valve, a pressure release valve, a proportional valve, a current stabilizer and an air suction end flow sensor are sequentially installed on the air pipeline and the high-pressure oxygen pipeline along the air suction direction, the filter is installed on the low-pressure oxygen pipeline, and the second reversing valve is located between the pressure release valve and the proportional valve.
Optionally, an expiratory end pressure sensor is connected to the expiratory pipeline, an inspiratory end pressure sensor is connected to the inspiratory pipeline, detection ends of the expiratory end pressure sensor and the inspiratory end pressure sensor are connected with zero valves, and the zero valves can zero the expiratory end pressure sensor and the inspiratory end pressure sensor.
Optionally, the breathing machine further comprises a safety pipeline, one end of the safety pipeline is connected to the air suction pipeline, a safety one-way valve and an electromagnetic control valve are installed on the safety pipeline, the electromagnetic control valve is located at the air outlet end of the safety one-way valve, the electromagnetic control valve is a normally closed valve, and when the electromagnetic control valve is opened, external ambient air can flow to the air suction pipeline through the safety one-way valve.
Optionally, the flow sensor is a differential pressure flow sensor.
In the breathing machine, the air blowing pipeline is communicated with the air suction pipeline, so that air in the air suction pipeline can flow to the air outlet pipeline through the two air outlet branch pipelines, the air outlet pipeline is blown with water from the front end and the rear end of the air outlet end flow sensor, the detection precision of the air outlet end flow sensor is prevented from being influenced by water condensed in the air outlet pipeline due to temperature difference, the detection precision of the air outlet end flow sensor is improved, and the accuracy of breathing machine parameters is further improved.
In another aspect, an embodiment of the present utility model provides a ventilator system, including the ventilator described above.
Drawings
Fig. 1 is a schematic diagram of a ventilator system according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. a source of high pressure air; 2. a distal pressure sensor; 3. a pressure release valve; 4. a filter; 5. an air source one-way valve; 6. a pressure reducing valve; 7. a proportional valve; 8. a current stabilizer; 9. an air suction end flow sensor; 10. a second reversing valve; 11. a source of high pressure oxygen gas; 12. an air-oxygen mixer; 13. an oxygen concentration sensor; 14. a safety valve; 15. an electromagnetic control valve; 16. a safety check valve; 17. a zeroer valve; 18. a first switching valve; 19. air resistance; 20. an exhalation end flow sensor; 21. PEEP membrane; 22. a voice coil motor; 23. a suction end pressure sensor; 24. a source of low pressure oxygen; 25. an exhalation end pressure sensor; 26. a first reversing valve; 27. and a second switching valve.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, an embodiment of the present utility model provides a ventilator, which is a dual-circuit ventilator, and includes an inhalation pipeline and a respiration valve, wherein an air inlet end of the inhalation pipeline is connected to an air source, the respiration valve has an inhalation port, an exhalation port and a vent, an air outlet end of the inhalation pipeline is connected to the inhalation port, the respiration valve has an exhalation pipeline connected to the exhalation port, and the vent allows a patient to inhale through the inhalation pipeline and exhale outwards through the exhalation pipeline.
The breathing machine further comprises an air blowing pipeline, an air outlet end flow sensor 20 is arranged on the air outlet pipeline, a first end of the air blowing pipeline is connected to the air suction pipeline, a second end of the air blowing pipeline is provided with two air outlet branch pipelines, one air outlet branch pipeline is connected to the front end of the air outlet end flow sensor 20 on the air outlet pipeline, and the other air outlet branch pipeline is connected to the rear end of the air outlet end flow sensor 20 on the air outlet pipeline.
In the breathing machine, the air blowing pipeline is communicated with the air suction pipeline, so that air in the air suction pipeline can flow to the air outlet pipeline through the two air outlet branch pipelines, water is blown to the air outlet end flow sensor 20 on the air outlet pipeline from the front end and the rear end of the air outlet end flow sensor 20, the detection precision of the air outlet end flow sensor 20 is prevented from being influenced by water condensed in the air outlet pipeline due to temperature difference, the detection precision of the air outlet end flow sensor 20 is improved, and the accuracy of breathing machine parameters is further improved.
In one embodiment, the air suction pipeline comprises an air pipeline, a high-pressure oxygen pipeline, a low-pressure oxygen pipeline, an air-oxygen mixer 12 and a mixing pipeline, wherein the air inlet end of the air pipeline is connected with the high-pressure air source 1, the air inlet end of the high-pressure oxygen pipeline is connected with the high-pressure oxygen source 11, and the air inlet end of the low-pressure oxygen pipeline is connected with the low-pressure oxygen source 24.
The air outlet ends of the low-pressure oxygen pipeline, the air pipeline and the high-pressure oxygen pipeline are communicated with the air inlet of the air-oxygen mixer 12, the air inlet end of the mixing pipeline is communicated with the air outlet of the air-oxygen mixer 12, and the air outlet end of the mixing pipeline is connected to the air suction port of the breather valve, so that air and oxygen flow from the mixing pipeline to the breather valve after being mixed in the air-oxygen mixer 12.
The breathing machine can be connected with the high-pressure air source 1, the high-pressure oxygen source 11 and the low-pressure oxygen source 24, so that the breathing machine can be suitable for different scenes, and the application range of the breathing machine is improved.
The first end of the blowing pipeline is provided with a plurality of air inlet branch pipelines, one ends of the air inlet branch pipelines are respectively communicated with the air pipeline, the high-pressure oxygen pipeline and the low-pressure oxygen pipeline, the other ends of the air inlet branch pipelines are respectively communicated with two air outlet branch pipelines, and each air inlet branch pipeline is provided with a first switch valve 18 so as to selectively open one of the air inlet branch pipelines, thereby being capable of selecting air or oxygen for blowing water.
In addition, compare in the pipeline connection of blowing in the hybrid pipeline, make partial mixed gas flow direction blow the pipeline and blow water, and can't the accurate control air pipeline, high-pressure oxygen pipeline and low-pressure oxygen pipeline in the gas flow, blow water through the gas in only one of them pipeline, be favorable to regulating and control gas flow and oxygen concentration in each pipeline.
In an embodiment, the ventilator further includes an atomization pipeline and a first reversing valve 26, the air inlet ends of the atomization pipeline are communicated with the first air outlet of the first reversing valve 26, the air inlet ends of the two air outlet branch pipelines are communicated with the second air outlet of the first reversing valve 26, each air inlet branch pipeline is communicated with the air inlet of the first reversing valve 26, and the air inlet is selectively communicated with one of the first air outlet and the second air outlet to control whether the air in the air inlet branch pipeline goes to the atomization function or the water blowing function, so that the atomization pipeline is integrated on the air blowing pipeline, and the structure of the ventilator is simplified.
And each outlet branch pipeline is provided with a second switch valve 27, and the second switch valve 27 can control the on-off of the corresponding outlet branch pipeline.
In one embodiment, a second reversing valve 10 is mounted on the high pressure oxygen line, the high pressure oxygen line is in communication with a first inlet of the second reversing valve 10, the low pressure oxygen line is in communication with a second inlet of the second reversing valve 10, and an outlet of the second reversing valve 10 is in selective communication with one of the first inlet and the second inlet.
The two air inlet branch pipelines are arranged, one air inlet branch pipeline is connected to the air pipeline, the other air inlet branch pipeline is connected to the rear end of the high-pressure oxygen pipeline at the second reversing valve 10, so that the air in the low-pressure oxygen pipeline and the high-pressure oxygen pipeline can be blown through the same air inlet branch pipeline, the number of the air inlet branch pipelines is reduced, and the structure of the breathing machine is simplified.
In an embodiment, the breathing machine further comprises a medical oxygenerator and a medical air compressor, the air inlet end of the high-pressure oxygen source is connected to the medical oxygenerator, the air inlet end of the air pipeline is connected to the medical air compressor, the medical oxygenerator forms a high-pressure oxygen source 11, and the medical air compressor forms a high-pressure air source 1, so that the air suction pipeline can work in ventilation with the medical oxygenerator and the medical air compressor, and the breathing machine is more applicable and more convenient in application.
In an embodiment, a pressure relief valve 3, a far-end pressure sensor 2, a filter 4, an air source one-way valve 5, a pressure relief valve 6, a proportional valve 7, a current stabilizer 8 and an air suction end flow sensor 9 are sequentially arranged on the air pipeline and the high-pressure oxygen pipeline along the air suction direction, and a second reversing valve 10 is arranged between the pressure relief valve 6 and the proportional valve 7.
When the air and the oxygen simultaneously select a high-pressure air source, the outlet of the second reversing valve 10 is communicated with the first inlet, high-pressure air enters from the air inlet end of the air pipeline, high-pressure oxygen enters from the air inlet end of the high-pressure oxygen pipeline and passes through the pressure release valve 3, and if the pressure exceeds a set pressure value, the pressure release valve 3 releases pressure. Then the pressure of the air source is monitored in real time through the remote pressure sensor 2, and the air is filtered through the filter 4, so that impurities in the air are prevented from entering the proportional valve 7 to damage the proportional valve 7. The filtered gas passes through the gas source one-way valve 5, the gas source one-way valve 5 prevents the gas from flowing back, the gas enters the pressure reducing valve 6 again, and the high-pressure gas is reduced to be within a set pressure range. The depressurized gas passes through a proportional valve 7, and the main function of the proportional valve 7 is to control the gas flow and provide different flow of gas according to actual requirements. Because the outlet of the proportional valve 7 is relatively small, the flow rate of the gas exiting the proportional valve 7 is turbulent, and if the gas is not stabilized, the flow of the rapid flow gas is unstable when the rapid flow gas passes through the suction end flow sensor 9, so that the gas flow needs to be stabilized. The purpose of the current stabilizer 8 is to play a role in stabilizing current, the gas after the current stabilization passes through the gas suction end flow sensor 9, and the main purpose of the gas suction end flow sensor 9 is to monitor the gas flow out of the proportional valve 7, so that the proportional valve 7 can accurately give out the required air or oxygen, and the required air-oxygen mixing proportion and the required tidal volume are achieved. Finally, the air and oxygen passing through the intake end flow sensor 9 are air-oxygen mixed in the air-oxygen mixer 12.
When the air is high-pressure air and the oxygen is low-pressure oxygen, the outlet of the second reversing valve 10 is communicated with the second inlet, the trend of the high-pressure air is unchanged, the low-pressure oxygen directly enters the high-pressure oxygen pipeline after passing through the filter 4 on the low-pressure pipeline, and the low-pressure oxygen is subjected to air-oxygen mixing with the high-pressure air in the air-oxygen mixer 12 after sequentially passing through the proportional valve 7 and the flow sensor 9 at the air suction end of the current stabilizer 8.
In one embodiment, the oxygen concentration sensor 13 and the air source one-way valve 5 are sequentially arranged on the mixed gas along the inspiration direction, the mixed gas flowing out of the air-oxygen mixer 12 is used for measuring the oxygen concentration through the oxygen concentration sensor 13, the mixed gas passes through the air source one-way valve 5, and the main function of the air source one-way valve 5 is to prevent the dirty gas expired by a patient from being flushed into an inspiration pipeline. The safety valve 14 is installed on the air-oxygen mixer 12 to prevent the pressure at the air suction end from exceeding the set pressure value, and the safety valve 14 will release pressure when exceeding the set pressure value, so as to avoid injury to patients.
In one embodiment, an expiratory end pressure sensor 25 is connected to the expiratory line, an inspiratory end pressure sensor 23 is connected to the inspiratory line, and zero valves 17 are connected to the detecting ends of the expiratory end pressure sensor 25 and the inspiratory end pressure sensor 23. The inspiratory-side pressure sensor 23 monitors the inspiratory-side gas pressure in real time, and the expiratory-side pressure sensor 25 monitors the pressure of the expired gas in the breather valve. When the breathing machine is disconnected from the air source, the inspiration pipeline and the expiration pipeline are communicated with the outside atmosphere, and at the moment, the zeroer valve 17 zeroes the values monitored by the expiration end pressure sensor 25 and the inspiration end pressure sensor 23 so as to improve the accuracy of the gas pressure monitored by the expiration end pressure sensor 25 and the inspiration end pressure sensor 23 during the working of the breathing machine.
In an embodiment, the breathing machine further comprises a safety pipeline, one end of the safety pipeline is connected to the air suction pipeline, a safety one-way valve 16 and an electromagnetic control valve 15 are installed on the safety pipeline, and the electromagnetic control valve 15 is located at the air outlet end of the safety one-way valve 16. The electromagnetic control valve 15 is a normally closed valve, and when the breathing machine fails, the electromagnetic control valve 15 is opened, so that the air in the external environment flows to the inhalation pipeline through the safety one-way valve 16, and the patient can inhale urgently.
In one embodiment, the expiratory end flow sensor 20 is a differential pressure flow sensor, wherein the air resistor 19 of the differential pressure flow sensor is installed in the expiratory pipeline, and the expiratory air flows through the air resistor 19 to generate a pressure difference between the front end and the rear end of the air resistor 19, and the differential pressure flow sensor obtains the expiratory air flow by monitoring the pressure difference.
In one embodiment, the PEEP diaphragm 21 and voice coil motor 22 are mounted on the exhalation tube, the exhalation gas being exhausted through the PEEP diaphragm 21, the voice coil motor 22 controlling primarily the PEEP value.
In other embodiments, the inspiratory line may be a single air line or a single oxygen line.
In other embodiments, the first end of the air-blowing line may be omitted from the air-intake branch line, and the first end of the air-blowing line may be connected to the mixing line, in which case a portion of the air flowing from the air-oxygen mixer 12 flows to the air-blowing line and another portion flows to the breather valve.
In other embodiments, the first reversing valve 26 may be omitted, and one end of the atomizing line may be directly connected to the air line, the high-pressure oxygen line, and the low-pressure oxygen line, so as to separate the atomizing line from the air blowing line.
In other embodiments, the second reversing valve 10 may be omitted, and the air outlet end of the low-pressure oxygen pipeline may be directly connected to the air inlet of the air-oxygen mixer 12, where three air inlet branch pipelines are required to be provided, and the three air inlet branch pipelines are respectively communicated with the air pipeline, the high-pressure oxygen pipeline and the low-pressure oxygen pipeline.
In other embodiments, high pressure oxygen source 11 may be a high pressure oxygen cylinder, high pressure air source 1 may be a high pressure air cylinder, and low pressure oxygen source 24 may be a low pressure oxygen cylinder.
In other embodiments, the exhalation end flow sensor 20 may be an ultrasonic flow sensor.
In addition, an embodiment of the present utility model provides a ventilator system including the ventilator of the above embodiment.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The breathing machine is characterized by comprising an inhalation pipeline, a breather valve and an air blowing pipeline, wherein the air inlet end of the inhalation pipeline is used for being communicated with an air source, the breather valve is provided with an air suction port, an air exhaust port and an air vent, the air outlet end of the inhalation pipeline is connected to the air suction port, the breather valve is provided with an air exhaust pipeline communicated with the air exhaust port, and the air vent is used for a patient to inhale through the inhalation pipeline and exhale outwards through the air exhaust pipeline;
the device is characterized in that an expiratory end flow sensor (20) is arranged on the expiratory pipeline, a first end of the air blowing pipeline is connected to the air suction pipeline, a second end of the air blowing pipeline is provided with two air outlet branch pipelines, one air outlet branch pipeline is connected to the expiratory pipeline at the front end of the expiratory end flow sensor (20), and the other air outlet branch pipeline is connected to the expiratory pipeline at the rear end of the expiratory end flow sensor (20).
2. The ventilator according to claim 1, wherein the inspiratory line comprises an air line, a hyperbaric oxygen line, a hypobaric oxygen line, an air-to-oxygen mixer (12), and a mixing line, the air line having an inlet end for connection to a hyperbaric air source (1), the hyperbaric oxygen line having an inlet end for connection to a hyperbaric oxygen source (11), and the hypobaric oxygen line having an inlet end for connection to a hypobaric oxygen source (24);
the air outlet ends of the low-pressure oxygen pipeline, the air pipeline and the high-pressure oxygen pipeline are communicated with the air inlet of the air-oxygen mixer (12), the air inlet end of the mixing pipeline is communicated with the air outlet of the air-oxygen mixer (12), and the air outlet end of the mixing pipeline is connected to the air suction port of the breather valve;
the first end of the blowing pipeline is provided with a plurality of air inlet branch pipelines, one ends of the air inlet branch pipelines are respectively communicated with the air pipeline, the high-pressure oxygen pipeline and the low-pressure oxygen pipeline, the other ends of the air inlet branch pipelines are respectively communicated with the two air outlet branch pipelines, and each air inlet branch pipeline is provided with a first switch valve (18) for selectively opening one of the air inlet branch pipelines.
3. The ventilator according to claim 2, further comprising an atomizing circuit and a first reversing valve (26), the inlet end of the atomizing circuit being in communication with a first exhaust port of the first reversing valve (26), the inlet ends of both of the outlet branch circuits being in communication with a second exhaust port of the first reversing valve (26), each of the inlet branch circuits being in communication with an inlet port of the first reversing valve (26), the inlet port being in selective communication with one of the first and second exhaust ports;
and each outlet branch pipeline is provided with a second switch valve (27), and the second switch valves (27) are used for controlling the on-off of the corresponding outlet branch pipelines.
4. The ventilator according to claim 2, characterized in that a second reversing valve (10) is mounted on the high pressure oxygen line, the high pressure oxygen line being in communication with a first inlet of the second reversing valve (10), the low pressure oxygen line being in communication with a second inlet of the second reversing valve (10), an outlet of the second reversing valve (10) being in selective communication with one of the first inlet and the second inlet;
the two air inlet branch pipelines are arranged, one air inlet branch pipeline is connected to the air pipeline, and the other air inlet branch pipeline is connected to the high-pressure oxygen pipeline at the rear end of the second reversing valve (10).
5. The ventilator according to claim 2, further comprising a medical oxygen generator and a medical air compressor, wherein the inlet end of the high pressure oxygen line is connected to the medical oxygen generator, the inlet end of the air line is connected to the medical air compressor, the medical oxygen generator constitutes the high pressure oxygen source (11), and the medical air compressor constitutes the high pressure air source (1).
6. The respirator according to claim 4, wherein the air pipeline and the high-pressure oxygen pipeline are sequentially provided with a pressure relief valve (3), a far-end pressure sensor (2), a filter (4), an air source one-way valve (5), a pressure relief valve (6), a proportional valve (7), a current stabilizer (8) and an inhalation end flow sensor (9) along the inhalation direction, the low-pressure oxygen pipeline is provided with the filter (4), and the second reversing valve (10) is positioned between the pressure relief valve (6) and the proportional valve (7).
7. The ventilator according to any of claims 1-6, characterized in that an expiratory end pressure sensor (25) is connected to the expiratory line, an inspiratory end pressure sensor (23) is connected to the inspiratory line, the detecting ends of the expiratory end pressure sensor (25) and the inspiratory end pressure sensor (23) are both connected to a zeroer valve (17), the zeroer valve (17) being capable of zeroing the expiratory end pressure sensor (25) and the inspiratory end pressure sensor (23).
8. The ventilator according to any of claims 1-6, further comprising a safety line, one end of the safety line being connected to the inspiratory line, a safety check valve (16) and an electromagnetic control valve (15) being mounted on the safety line, the electromagnetic control valve (15) being located at an outlet end of the safety check valve (16), the electromagnetic control valve (15) being a normally closed valve, when the electromagnetic control valve (15) is opened, external ambient air being able to flow through the safety check valve (16) to the inspiratory line.
9. The ventilator according to any of claims 1-6, wherein the expiratory end flow sensor (20) is a differential pressure flow sensor.
10. A ventilator system comprising a ventilator according to any of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321130171.7U CN220002634U (en) | 2023-05-11 | 2023-05-11 | Breathing machine system and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321130171.7U CN220002634U (en) | 2023-05-11 | 2023-05-11 | Breathing machine system and breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220002634U true CN220002634U (en) | 2023-11-14 |
Family
ID=88671062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321130171.7U Active CN220002634U (en) | 2023-05-11 | 2023-05-11 | Breathing machine system and breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220002634U (en) |
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2023
- 2023-05-11 CN CN202321130171.7U patent/CN220002634U/en active Active
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Address after: 518000, Building 1, 101, Evergrande Fashion Huigu Building, Fulong Road, Shanghenglang Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Country or region after: China Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Security Medical Technology Co.,Ltd. Country or region before: China |