CN219614638U - PEEP gas control mechanism and breathing equipment - Google Patents
PEEP gas control mechanism and breathing equipment Download PDFInfo
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- CN219614638U CN219614638U CN202320620869.0U CN202320620869U CN219614638U CN 219614638 U CN219614638 U CN 219614638U CN 202320620869 U CN202320620869 U CN 202320620869U CN 219614638 U CN219614638 U CN 219614638U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 13
- 244000144985 peep Species 0.000 title claims abstract 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 43
- 238000007789 sealing Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 6
- 239000003994 anesthetic gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a PEEP gas control mechanism and breathing equipment. In the PEEP gas control mechanism, the on-off valve comprises a movable body and an elastic piece; the movable body is arranged in the mounting hole through the elastic piece; one end of the movable body is provided with a conical blocking part for blocking the first channel, the side wall of the movable body is provided with a first annular blocking part which is abutted against the inner wall of the mounting hole, the first annular blocking part divides the mounting hole into a first space and a second space which are distributed at intervals, the first space is communicated with the first channel and the second channel, the second space is communicated with the adjusting channel, and one end of the second channel far away from the first space is communicated with the atmosphere; the adjusting channel is used for inputting pressure gas into the second space so as to adjust the on-off valve to block the first channel. In the utility model, the PEEP gas control mechanism has the advantages of simple structure, low manufacturing cost and convenient control.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a PEEP gas control mechanism and breathing equipment.
Background
The breathing equipment comprises a breathing machine, an anesthesia machine and the like; wherein, the breathing machine is a medical instrument which can replace, control or change normal physiological breathing of people, strengthen the ventilation of lungs, improve the respiratory function, lighten the consumption of breathing work and save the heart reserve capacity; the anesthesia machine can send the anesthetic into alveoli of a patient through a mechanical loop to form partial pressure of anesthetic gas, and after the partial pressure of the anesthetic gas is dispersed into blood, the anesthetic gas directly inhibits the central nervous system, so that the general anesthesia effect is generated.
When a ventilator is used to assist in treating pulmonary failure in a particular patient, pressure-controlled exhalation techniques are often used to ensure that the patient maintains a certain airway pressure at the end of exhalation. However, the conventional pressure control method generally uses a mechanical method to artificially create an air pressure, thereby ensuring that the patient maintains a certain PEEP (positive end expiratory pressure, positive end respiratory pressure) value. For example, CPAP ventilators, can deliver a continuous flow of positive pressure to the airway, thereby maintaining the alveoli at a certain pressure at the end of expiration, increasing functional residual capacity, and preventing collapse of the alveoli.
In the prior art, a gas circuit structure for controlling PEEP gas output is generally provided with a pressure gas output or pressure relief on-off valve, and the on-off valve has the defects of complex structure, high manufacturing cost and the like.
Disclosure of Invention
The utility model solves the technical problems of low integration level and large volume of a gas circuit structure in the prior art, and provides a PEEP gas control mechanism and breathing equipment.
In view of the above problems, the PEEP gas control mechanism provided by the embodiment of the utility model comprises a mounting block and an on-off valve, wherein the mounting block is provided with an adjusting channel, a mounting hole, a first channel, a second channel and a PEEP interface, and two opposite ends of the first channel are respectively communicated with the mounting hole and the PEEP interface;
the on-off valve comprises a movable body and an elastic piece; the movable body is arranged in the mounting hole through the elastic piece; one end of the movable body is provided with a conical blocking part for blocking the first channel, the side wall of the movable body is provided with a first annular blocking part which is in butt joint with the inner wall of the mounting hole, the first annular blocking part divides the mounting hole into a first space and a second space which are distributed at intervals, the first space is communicated with the first channel and the second channel, the second space is communicated with the adjusting channel, and one end of the second channel far away from the first space is communicated with the atmosphere;
the regulating channel is used for inputting pressure gas into the second space so as to regulate the on-off valve to seal the first channel.
Optionally, a first annular groove is formed in the conical plugging portion, a second annular groove is formed in the first annular plugging portion, and the on-off valve comprises a first sealing ring installed in the first annular groove and a second sealing ring installed in the second annular groove.
Optionally, one end of the mounting hole away from the first channel is communicated with the atmosphere, and the movable body is further provided with a second annular blocking part for blocking the mounting hole.
Optionally, a third annular groove is formed in the second annular blocking portion, and the on-off valve comprises a third sealing ring installed in the third annular groove.
Optionally, the PEEP gas control mechanism further comprises a proportional valve and a pressure sensor, wherein the proportional valve and the pressure sensor are both installed on the installation block, a third channel and a fourth channel are further arranged on the installation block, the third channel is communicated with an inlet of the proportional valve, a first outlet of the proportional valve is communicated with the PEEP interface, and a second outlet of the proportional valve is communicated with the pressure sensor.
Optionally, the PEEP gas control mechanism further comprises a first two-position three-way valve installed on the installation block, a fifth channel and a sixth channel are further arranged on the installation block, one end, far away from the proportional valve, of the fourth channel is communicated with a first interface of the first two-position three-way valve, two opposite ends of the fifth channel are respectively communicated with a second interface of the first two-position three-way valve and the pressure sensor, and two opposite ends of the sixth channel are respectively communicated with a third interface of the first two-position three-way valve and the atmosphere; the first two-position three-way valve is used for controlling the fifth channel to be communicated with the fourth channel or the sixth channel.
Optionally, the PEEP gas control mechanism further comprises a second two-position three-way valve installed on the installation block, a seventh channel and an eighth channel are further arranged on the installation block, the seventh channel is communicated with a first interface of the second two-position three-way valve, opposite ends of the eighth channel are respectively communicated with a second interface of the second two-position three-way valve and the atmosphere, and one end, far away from the second space, of the adjusting channel is communicated with a third interface of the second two-position three-way valve; the second two-position three-way valve is used for adjusting the adjusting channel to be communicated with the seventh channel or the eighth channel.
Optionally, the first channel has an inner diameter smaller than an inner diameter of the mounting hole.
Another embodiment of the present utility model also provides a breathing apparatus, including the PEEP gas control mechanism described above.
In the utility model, when the pressure gas is input into the second space through the adjusting channel, the pressure gas in the second space drives the moving body to move towards the first channel until the conical plugging part is inserted into and plugs the first channel; at this time, the PEEP interface is not open to atmosphere through the second channel; the PEEP port may be configured to input a gas having a pressure (greater than atmospheric pressure) to the PEEP valve. When the pressure gas in the second space is decompressed through the adjusting channel, the elastic piece drives the movable body to move in a direction away from the first channel until the conical plugging part retreats into the first space; at this time, the PEEP interface communicates with the atmosphere through the first passage, the first space, and the second passage; the gas pressure output by the PEEP port to the PEEP valve is atmospheric pressure. In the utility model, the PEEP gas control mechanism has the advantages of simple structure, low manufacturing cost and convenient control.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a PEEP gas control mechanism according to an embodiment of the present utility model;
FIG. 2 is a partial cross-sectional view of a PEEP gas control mechanism provided in an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a PEEP gas control mechanism according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an on-off valve of a PEEP gas control mechanism according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. a mounting block; 11. a first channel; 12. a second channel; 13. a third channel; 14. a fourth channel; 15. a fifth channel; 16. a sixth channel; 17. a seventh channel; 18. an eighth channel; 19. a mounting hole; 191. a first space; 192. a second space; 101. a PEEP interface; 102. a regulating channel; 2. an on-off valve; 21. moving the body; 211. a conical plugging portion; 212. a first annular plug; 213. a second annular blocking portion; 22. an elastic member; 23. a first seal ring; 24. a second seal ring; 25. a third seal ring; 3. a proportional valve; 4. a pressure sensor; 5. a first two-position three-way valve; 6. and a second two-position three-way 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.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1 to 4, an embodiment of the present utility model provides a PEEP gas control mechanism, which includes a mounting block 1 and an on-off valve 2, wherein a regulating channel 102, a mounting hole 19, a first channel 11, a second channel 12 and a PEEP interface 101 are provided on the mounting block 1, and opposite ends of the first channel 11 are respectively communicated with the mounting hole 19 and the PEEP interface 101; it will be appreciated that the PEEP port 101 communicates with a PEEP valve, so that the PEEP port 101 can output gas at a certain pressure to the PEEP valve.
The on-off valve 2 includes a moving body 21 and an elastic member 22; the moving body 21 is mounted in the mounting hole 19 through the elastic member 22; a conical blocking part 211 for blocking the first channel 11 is arranged at one end of the movable body 21, a first annular blocking part 212 abutting against the inner wall of the mounting hole 19 is arranged on the side wall of the movable body 21, the first annular blocking part 212 divides the mounting hole 19 into a first space 191 and a second space 192 which are distributed at intervals, the first space 191 is communicated with the first channel 11 and the second channel 12, the second space 192 is communicated with the regulating channel 102, and one end of the second channel 12 away from the first space 191 is communicated with the atmosphere; as can be appreciated, the elastic member 22 includes, but is not limited to, a spring, etc., and the elastic member 22 is sleeved on the tapered blocking portion 211 and is located in the first space 191; the cross section of the conical plugging portion 211 is smaller near one end of the first channel 11; when the tapered blocking portion 211 is inserted into the first passage 11, the tapered blocking portion 211 blocks the first passage 11, and at this time, the PEEP port 101 is not communicated with the atmosphere through the second passage 12; when the tapered blocking portion 211 moves into the first space 191 due to the elastic force of the elastic member 22, the PEEP port 101 communicates with the atmosphere through the first passage 11, the first space 191, and the second passage 12.
The regulating passage 102 is used for inputting pressure gas into the second space 192 to regulate the on-off valve 2 to block the first passage 11. In the process of patient expiration, a certain pressure (namely positive end-respiratory pressure) is needed in the first half of expiration, and the pressure in the second half of expiration is atmospheric pressure, so that the patency of patient expiration is ensured.
Specifically, when the pressure gas is input into the second space 192 through the adjustment passage 102, the pressure gas in the second space 192 drives the moving body 21 to move toward the first passage 11 until the tapered blocking portion 211 is inserted into and blocks the first passage 11; at this time, the PEEP interface 101 is not connected to the atmosphere through the second passage 12; the PEEP port 101 may be configured to supply a gas having a certain pressure (greater than atmospheric pressure) to the PEEP valve. When the pressure gas in the second space 192 is released through the adjusting channel 102, the elastic member 22 drives the moving body 21 to move in a direction away from the first channel 11 until the conical plugging portion 211 is retracted into the first space 191; at this time, the PEEP port 101 communicates with the atmosphere through the first passage 11, the first space 191, and the second passage 12; the gas pressure output from the PEEP port 101 to the PEEP valve is atmospheric pressure. In the utility model, the PEEP gas control mechanism has the advantages of simple structure, low manufacturing cost and convenient control.
In an embodiment, as shown in fig. 2 and 4, the conical plugging portion 211 is provided with a first annular groove, the first annular plugging portion 212 is provided with a second annular groove, and the on-off valve 2 includes a first sealing ring 23 installed in the first annular groove and a second sealing ring 24 installed in the second annular groove. As can be appreciated, the first sealing ring 23 may abut against the inner wall of the first channel 11, so that the first sealing ring 23 ensures the tightness of the conical sealing portion 211 for sealing the first channel 11; the second sealing ring 24 abuts against the inner wall of the mounting hole 19, so that the second sealing ring 24 ensures tightness between the first space 191 and the second space 192.
In an embodiment, as shown in fig. 2 and 4, an end of the mounting hole 19 away from the first channel 11 is open to the atmosphere, and the moving body 21 is further provided with a second annular blocking portion 213 for blocking the mounting hole 19. It will be appreciated that the opposite ends of the mounting hole 19 are respectively connected to the first passage 11 and the atmosphere, and the adjusting passage 102 and the second passage 12 are respectively connected to the inner side wall of the mounting hole 19. In this embodiment, the mounting hole 19 is a passage communicating with the atmosphere, thereby facilitating the manufacture of the mounting hole 19 and the first passage 11.
In one embodiment, as shown in fig. 4, the second annular blocking portion 213 is provided with a third annular groove, and the on-off valve 2 includes a third sealing ring 25 installed in the third annular groove. As will be appreciated, the first annular blocking portion 212 is located between the conical blocking portion 211 and the third annular blocking portion, the inner diameter of the first channel 11 is smaller than the inner diameter of the mounting hole 19, and the third sealing ring 25 abuts against the inner wall of the mounting hole 19, so that the tightness between the mounting hole 19 and the atmosphere is ensured.
In an embodiment, as shown in fig. 1 and 3, the PEEP gas control mechanism further includes a proportional valve 3 and a pressure sensor 4 both mounted on the mounting block 1, and a third channel 13 and a fourth channel 14 are further disposed on the mounting block 1, where the third channel 13 communicates with an inlet of the proportional valve 3, a first outlet of the proportional valve 3 communicates with the PEEP interface 101, and a second outlet of the proportional valve 3 communicates with the pressure sensor 4. It will be appreciated that the proportional valve 3 may adjust the flow rate of the gas output from the third channel 13 to the PEEP interface 101, thereby adjusting the pressure value of the PEEP interface 101, and the pressure sensor 4 may detect the pressure value of the gas output from the PEEP interface 101 in real time. In this embodiment, the design of the proportional valve 3 and the pressure sensor 4 improves the integration level of the PEEP gas control mechanism.
In an embodiment, as shown in fig. 1 and 3, the PEEP gas control mechanism further includes a first two-position three-way valve 5 mounted on the mounting block 1, a fifth channel 15 and a sixth channel 16 are further provided on the mounting block 1, one end of the fourth channel 14, which is far away from the proportional valve 3, is communicated with a first interface of the first two-position three-way valve 5, two opposite ends of the fifth channel 15 are respectively communicated with a second interface of the first two-position three-way valve 5 and the pressure sensor 4, and two opposite ends of the sixth channel 16 are respectively communicated with a third interface of the first two-position three-way valve 5 and the atmosphere; the first two-position three-way valve 5 is used for controlling the fifth channel 15 to be communicated with the fourth channel 14 or the sixth channel 16. As can be appreciated, since the pressure sensor 4 has a low sensitivity after a period of operation, the pressure sensor 4 needs to be calibrated to ensure the accuracy of the pressure detected by the pressure sensor 4; the pressure sensor 4 is required to be vented to atmosphere during calibration.
Specifically, when the pressure sensor 4 monitors positive end respiratory pressure, the first two-position three-way valve 5 controls the fifth channel 15 to communicate with the fourth channel 14, and the pressure sensor 4 sequentially detects the pressure of the PEEP port 101 through the fifth channel 15 and the fourth channel 14; when the pressure sensor 4 needs to be calibrated, the first two-position three-way valve 5 controls the fifth channel 15 to be communicated with the sixth channel 16, so that the pressure sensor 4 is communicated with the atmosphere through the fifth channel 15 and the sixth channel 16, and the pressure sensor 4 is calibrated.
In an embodiment, as shown in fig. 3, the PEEP gas control mechanism further includes a second two-position three-way valve 6 mounted on the mounting block 1, a seventh channel 17 and an eighth channel 18 are further provided on the mounting block 1, the seventh channel 17 is communicated with a first interface of the second two-position three-way valve 6, opposite ends of the eighth channel 18 are respectively communicated with a second interface of the second two-position three-way valve 6 and the atmosphere, and one end of the adjusting channel 102 far away from the second space 192 is communicated with a third interface of the second two-position three-way valve 6; the second two-position three-way valve 6 is used for adjusting the adjusting channel 102 to be communicated with the seventh channel 17 or the eighth channel 18. It will be appreciated that the end of the seventh passage 17 remote from the second two-position three-way valve 6 may be in communication with the pressurized gas or may be in communication with the third passage 13.
Specifically, when the second two-position three-way valve 6 controls the adjusting channel 102 to communicate with the seventh channel 17, the seventh channel 17 inputs pressure gas into the second space 192 through the adjusting channel 102, and the pressure gas drives the moving body 21 to move until the conical plugging portion 211 is inserted into the first channel 11 to plug the first channel 11. When the second two-position three-way valve 6 controls the adjusting channel 102 to communicate with the eighth channel 18, the pressure gas in the second space 192 is decompressed through the adjusting channel 102 and the eighth channel 18, so that the elastic force of the elastic member 22 drives the moving body 21 to move until the conical plugging portion 211 retreats into the first space 191.
Another embodiment of the present utility model also provides a breathing apparatus, including the PEEP gas control mechanism described above.
The foregoing description of the preferred embodiment 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 (9)
1. The PEEP gas control mechanism is characterized by comprising a mounting block and an on-off valve, wherein the mounting block is provided with a regulating channel, a mounting hole, a first channel, a second channel and a PEEP interface, and the opposite ends of the first channel are respectively communicated with the mounting hole and the PEEP interface;
the on-off valve comprises a movable body and an elastic piece; the movable body is arranged in the mounting hole through the elastic piece; one end of the movable body is provided with a conical blocking part for blocking the first channel, the side wall of the movable body is provided with a first annular blocking part which is in butt joint with the inner wall of the mounting hole, the first annular blocking part divides the mounting hole into a first space and a second space which are distributed at intervals, the first space is communicated with the first channel and the second channel, the second space is communicated with the adjusting channel, and one end of the second channel far away from the first space is communicated with the atmosphere;
the regulating channel is used for inputting pressure gas into the second space so as to regulate the on-off valve to seal the first channel.
2. The PEEP gas control mechanism as recited in claim 1, wherein the conical plug portion has a first annular groove thereon, the first annular plug portion has a second annular groove thereon, and the on-off valve includes a first seal ring mounted in the first annular groove and a second seal ring mounted in the second annular groove.
3. The PEEP gas control mechanism as set forth in claim 1, wherein an end of said mounting hole remote from said first passage is open to atmosphere, and said movable body is further provided with a second annular blocking portion for blocking said mounting hole.
4. The PEEP gas control mechanism as recited in claim 3, wherein a third annular groove is provided on the second annular seal, and the on-off valve includes a third seal ring mounted in the third annular groove.
5. The PEEP gas control mechanism according to claim 1, further comprising a proportional valve and a pressure sensor both mounted on the mounting block, wherein a third channel and a fourth channel are further provided on the mounting block, the third channel is communicated with an inlet of the proportional valve, a first outlet of the proportional valve is communicated with the PEEP interface, and a second outlet of the proportional valve is communicated with the pressure sensor.
6. The PEEP gas control mechanism according to claim 5, further comprising a first two-position three-way valve mounted on the mounting block, a fifth channel and a sixth channel being further provided on the mounting block, one end of the fourth channel away from the proportional valve being communicated with a first port of the first two-position three-way valve, opposite ends of the fifth channel being respectively communicated with a second port of the first two-position three-way valve and the pressure sensor, and opposite ends of the sixth channel being respectively communicated with a third port of the first two-position three-way valve and the atmosphere; the first two-position three-way valve is used for controlling the fifth channel to be communicated with the fourth channel or the sixth channel.
7. The PEEP gas control mechanism according to claim 1, further comprising a second two-position three-way valve mounted on the mounting block, a seventh channel and an eighth channel being further provided on the mounting block, the seventh channel being communicated with a first port of the second two-position three-way valve, opposite ends of the eighth channel being respectively communicated with a second port of the second two-position three-way valve and the atmosphere, an end of the regulating channel remote from the second space being communicated with a third port of the second two-position three-way valve; the second two-position three-way valve is used for adjusting the adjusting channel to be communicated with the seventh channel or the eighth channel.
8. The PEEP gas control mechanism as recited in claim 1, wherein an inner diameter of the first passage is smaller than an inner diameter of the mounting bore.
9. A breathing apparatus comprising a PEEP gas control mechanism as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620869.0U CN219614638U (en) | 2023-03-14 | 2023-03-14 | PEEP gas control mechanism and breathing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620869.0U CN219614638U (en) | 2023-03-14 | 2023-03-14 | PEEP gas control mechanism and breathing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219614638U true CN219614638U (en) | 2023-09-01 |
Family
ID=87770736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320620869.0U Active CN219614638U (en) | 2023-03-14 | 2023-03-14 | PEEP gas control mechanism and breathing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219614638U (en) |
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2023
- 2023-03-14 CN CN202320620869.0U patent/CN219614638U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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 |
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| CP03 | Change of name, title or address |