CN203634619U - Air flow control device with buffer structure - Google Patents
Air flow control device with buffer structure Download PDFInfo
- Publication number
- CN203634619U CN203634619U CN201320789038.2U CN201320789038U CN203634619U CN 203634619 U CN203634619 U CN 203634619U CN 201320789038 U CN201320789038 U CN 201320789038U CN 203634619 U CN203634619 U CN 203634619U
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- Prior art keywords
- exhalation
- air flow
- buffer structure
- flow controller
- throttling
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- 230000003139 buffering effect Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 9
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 2
- 244000144985 peep Species 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The utility model relates to an air flow control device with a buffer structure. The air flow control device comprises an exhalation air control module, a buffer throttling connector, a differential pressure sensor and a one-way valve membrane. The buffer throttling connector and the differential pressure sensor are sequentially connected with the exhalation air control module. The one-way valve membrane is disposed in the exhalation end of the exhalation air control module. The air flow control device has the advantages that the air flow control device is disposed at the front end of a sensor and at the outlet of the exhalation end of an exhalation valve while the cost of a respirator is not increased, fixed even air and pressure input is provided for the exhalation end of the exhalation valve, matching requirements of an electric hardware platform is lowered correspondingly, accurate reading of the pressure differential sensor is achieved, fluctuation is reduced, delay time is shortened, accurate basis is provided for PEEP adjustment, and reliability of the respirator is increased.
Description
Technical field
This utility model relates to the guarantee parts of differential pressure pickup pin-point reading in a kind of anesthetic gas machine, is specifically related to the exhalation valve control system for respirator and anesthetic machine.
Background technology
PEEP function is important performance indications of China's medical breathing machine.The pressure of PEEP, from low-level 0.29-0.49kPa (3-5cmH2O), is increased to 0.98kPa (10cmH2O) gradually, generally should not exceed 1.96kPa(20cmH2O).The adjusting of PEEP pressure need to be adjusted according to measuring the exhalation end pressure of answering in contrast.And the sensor of measuring exhalation valve exhalation end pressure accomplishes that in so little scope pin-point reading and fast reaction are exactly a great problem.The measurement of existing exhalation end pressure has two classes:
The first, use traffic sensor, the method advantage is that cost is lower, shortcoming is that reading is accurate not, especially has a more fatal shortcoming, once there be hydrops, can have a strong impact on reading.
The second, use differential pressure pickup, the method reading is more accurate, but due to very sensitive, inlet end gas has very little fluctuation also can affect its reading can not be constant, the electric hardware platform that respirator itself is correlated with requires high, has directly improved the cost of respirator.
Utility model content
The purpose of this utility model is to provide a kind of air flow controller that provides exhalation valve to breathe out quick, the accurate and stable pressure reading of end.
For solving the problems of the technologies described above, the air flow controller of this utility model band buffer structure, comprising: the control gas module of breathing out and the buffering throttling joint and the differential pressure pickup that are connected with described exhalation control gas module exhalation end successively; Check valve diaphragm, described check valve diaphragm is arranged in the exhalation end of described exhalation control gas module.
Described buffering throttling joint comprises: the inserting paragraph and the clamping section that connect successively; The overall diameter of wherein said clamping section is greater than the overall diameter of described inserting paragraph.
In described clamping section, be provided with shackle passageway, in described inserting paragraph, be provided with the transition passage and the throttling passage that connect successively; Wherein said transition passage designs for gradual change type, the diameter of described transition passage described exhalation control gas module towards in the direction of described buffering throttling joint itself from large to small, described throttling passage is connected with the small end of described transition passage; The diameter of described shackle passageway is greater than the diameter of described throttling passage.
The diameter of described throttling passage is 8 millimeters～9 millimeters.
Described check valve diaphragm is eccentric check valve diaphragm.
The air flow controller of this utility model band buffer structure does not increase under the considering of respirator cost, the present invention breathes out and brings out mouth at exhalation valve, sensor front end provides a kind of structure of effective dash-control air-flow, breathe out and hold fixing uniform gas and pressure input to exhalation valve, require corresponding reduction for electric hardware platform aspect supporting, make the accuracy of reading of differential pressure pickup, reduce fluctuation, shorten lag time, thereby there is accurate foundation for the adjusting of PEEP, improved the reliability of respirator.
Brief description of the drawings
Fig. 1 is the air flow controller decomposition explosion schematic diagram of this utility model band buffer structure;
Fig. 2 is the air flow controller assembling generalized section of this utility model band buffer structure;
Fig. 3 is the eccentric check valve film chip architecture of the air flow controller schematic diagram of this utility model band buffer structure.
Description of reference numerals in the air flow controller accompanying drawing of this utility model band buffer structure:
1-differential pressure pickup 2-buffering throttling joint 3-check valve diaphragm
4-breathes out and controls gas module 5-inserting paragraph 6-clamping section
7-shackle passageway 8-transition passage 9-throttling passage
Detailed description of the invention
Below in conjunction with accompanying drawing, the air flow controller of this utility model band buffer structure is described in further detail.
As shown in FIG. 1 to 3, the air flow controller of this utility model band buffer structure, comprise: the control gas module 4 of breathing out and the buffering throttling joint 2 and the differential pressure pickup 1 that are connected with described exhalation control gas module 4 exhalation ends successively, be also provided with check valve diaphragm 3 on the installing hole in the exhalation end of described exhalation control gas module 4.
Wherein check valve is that a thickness is the silicone rubber diaphragm of 0.4 millimeter, and eccentric position has clamping type extended column, can snap in the installing hole of the control gas module 4 of breathing out.Ensure that, in the time that exhalation cavity pressure is greater than PEEP cavity pressure, the gas that patient breathes out can only pass through from check valve diaphragm 3 lower ends, plays the effect of first step buffer gas flow.Buffering throttling joint 2 is divided into the inserting paragraph 5 and clamping section 6 that connect successively, and gas is in the time flowing through buffering throttling joint 2, and first process is a transition passage 8, plays the effect of second step buffer gas flow.It is 8 millimeters～9 millimeters that the bore of middle throttling passage 9 is reduced into diameter, play reducing pressure by regulating flow effect, directly amplify in the aperture of rear end shackle passageway 7 in addition, has also played the effect of buffer gas, has ensured that by the breath of differential pressure pickup be the more stable gas that there is no fluctuation.
Buffering throttling joint 2 is working of plastics, and volume is little lightweight, and one end is made outer cone and directly sealed and be connected with the inner cone of exhalation control gas module 4 exhalation ends, and the other end is made inner cone and directly sealed and be connected with the outer cone of differential pressure pickup, for convenience detach.The control gas module 4 of breathing out is arranged in respirator, can be with check valve diaphragm 3, and buffering throttling joint 2,1 one-tenth independent parts of differential pressure pickup, for convenience detach, clean sterilization and necessary replacing.
The air flow controller of this utility model band buffer structure does not increase under the considering of respirator cost, the present invention breathes out and brings out mouth at exhalation valve, sensor front end provides a kind of structure of effective dash-control air-flow, breathe out and hold fixing uniform gas and pressure input to exhalation valve, require corresponding reduction for electric hardware platform aspect supporting, make the accuracy of reading of differential pressure pickup, reduce fluctuation, shorten lag time, thereby there is accurate foundation for the adjusting of PEEP, improved the reliability of respirator.
Below the preferred embodiment of this utility model having been created illustrates, but this utility model is created and is not limited to embodiment, those of ordinary skill in the art also can make all modification being equal to or replacement under the prerequisite without prejudice to this utility model creative spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (5)
1. the air flow controller with buffer structure, comprising: the control gas module of breathing out and the buffering throttling joint and the differential pressure pickup that are connected with described exhalation control gas module exhalation end successively;
Check valve diaphragm, described check valve diaphragm is arranged in the exhalation end of described exhalation control gas module.
2. the air flow controller with buffer structure according to claim 1, is characterized in that, described buffering throttling joint comprises: the inserting paragraph and the clamping section that connect successively; The overall diameter of wherein said clamping section is greater than the overall diameter of described inserting paragraph.
3. the air flow controller with buffer structure according to claim 2, is characterized in that, in described clamping section, is provided with shackle passageway, is provided with the transition passage and the throttling passage that connect successively in described inserting paragraph; Wherein said transition passage designs for gradual change type, the diameter of described transition passage described exhalation control gas module towards in the direction of described buffering throttling joint itself from large to small, described throttling passage is connected with the small end of described transition passage;
The diameter of described shackle passageway is greater than the diameter of described throttling passage.
4. the air flow controller with buffer structure according to claim 3, is characterized in that, the diameter of described throttling passage is 8 millimeters～9 millimeters.
5. the air flow controller with buffer structure according to claim 1, is characterized in that, described check valve diaphragm is eccentric check valve diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789038.2U CN203634619U (en) | 2013-12-03 | 2013-12-03 | Air flow control device with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789038.2U CN203634619U (en) | 2013-12-03 | 2013-12-03 | Air flow control device with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203634619U true CN203634619U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789038.2U Expired - Lifetime CN203634619U (en) | 2013-12-03 | 2013-12-03 | Air flow control device with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203634619U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020214490A1 (en) | 2019-04-15 | 2020-10-22 | Imtmedical Ag | Gas valve for ventilation, a circuit for a ventilation system and a method for determining a releasing gas flow |
| CN112156314A (en) * | 2020-10-14 | 2021-01-01 | 温州职业技术学院 | Frequency regulating valve of adjustable breathing machine |
| CN113015602A (en) * | 2018-12-28 | 2021-06-22 | 雅马哈发动机株式会社 | Multi-joint robot |
| CN115126583A (en) * | 2022-07-18 | 2022-09-30 | 潍柴动力股份有限公司 | Fault diagnosis method and system for double-path particle catcher |
-
2013
- 2013-12-03 CN CN201320789038.2U patent/CN203634619U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113015602A (en) * | 2018-12-28 | 2021-06-22 | 雅马哈发动机株式会社 | Multi-joint robot |
| CN113015602B (en) * | 2018-12-28 | 2024-04-12 | 雅马哈发动机株式会社 | Multi-joint robot |
| WO2020214490A1 (en) | 2019-04-15 | 2020-10-22 | Imtmedical Ag | Gas valve for ventilation, a circuit for a ventilation system and a method for determining a releasing gas flow |
| CN112156314A (en) * | 2020-10-14 | 2021-01-01 | 温州职业技术学院 | Frequency regulating valve of adjustable breathing machine |
| CN115126583A (en) * | 2022-07-18 | 2022-09-30 | 潍柴动力股份有限公司 | Fault diagnosis method and system for double-path particle catcher |
| CN115126583B (en) * | 2022-07-18 | 2024-01-12 | 潍柴动力股份有限公司 | Dual-path particle catcher fault diagnosis method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |