CN101609089B - Air passage block and end-expiratory carbon dioxide monitoring module manufactured by adopting same - Google Patents
Air passage block and end-expiratory carbon dioxide monitoring module manufactured by adopting same Download PDFInfo
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- CN101609089B CN101609089B CN 200910108119 CN200910108119A CN101609089B CN 101609089 B CN101609089 B CN 101609089B CN 200910108119 CN200910108119 CN 200910108119 CN 200910108119 A CN200910108119 A CN 200910108119A CN 101609089 B CN101609089 B CN 101609089B
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 49
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 32
- 239000011148 porous material Substances 0.000 claims description 56
- 238000005070 sampling Methods 0.000 claims description 13
- ZOMSMJKLGFBRBS-UHFFFAOYSA-N bentazone Chemical compound C1=CC=C2NS(=O)(=O)N(C(C)C)C(=O)C2=C1 ZOMSMJKLGFBRBS-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 238000013016 damping Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 230000009467 reduction Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- MVWDJLOUEUAWIE-UHFFFAOYSA-N O=C=O.O=C=O Chemical compound O=C=O.O=C=O MVWDJLOUEUAWIE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an air passage block and an end-expiratory carbon dioxide monitoring module manufactured by adopting the same. In the invention, an air outlet chamber communicated with a vacuum pump component and an air inlet chamber communicated with a carbon dioxide concentration measurement component are arranged in an air passage block body; the air outlet chamber is provided with an air hole communicated with the outside by two parts, the air inlet chamber is provided with an inner side air hole communicated with the outside by two parts respectively and an outer side air hole communicated with the outside by one part, and the outer side of the outer side air hole is also provided with a blind hole which is communicated with the outside by two parts and is not communicated with the air inlet chamber; and a connecting pipe used for generating pressure drop is arranged between the air outlet chamber and the air inlet chamber. As complicated pipeline connection is omitted, the pressure and the flow rate loss of gas expired by a patient is reduced when being transmitted in the monitoring module, and the measurement of carbon dioxide expired by the patient is more accurate. By arranging the connecting pipe used for generating pressure drop, a pressure difference is provided to measure the flow rate, and the whole structure and the installation are simplified. A pressure difference sensor adopts the connection of a flexible PCB plate and a main PCB plate, which obviously saves the space; the vibration damping performance of the vacuum pump component is reliable.
Description
Technical field
The present invention relates to carbon dioxide monitoring, particularly relate to the end-expiratory carbon dioxide monitoring module of a kind of air passage block and its making of employing.
Background technology
Partial pressure of carbon dioxide in endexpiratory gas (PETCO
2) can reflect patient's metabolism, ventilation and recurrent state, be the 6th basic vital sign except body temperature, breathing, pulse, blood pressure, arterial oxygen saturation.Be fit to most of crowds and can carry out carbon dioxide sampling and energy Accurate Measurement PETCO
2Device in, comprise a kind of plug-in type end-expiratory carbon dioxide monitoring module.This monitoring modular is to adopt Venturi tube structure adapted relative pressure sensor or special flow sensor measurement end-expiratory carbon dioxide flow mostly.Generally comprise for measuring give off carbon dioxide carbon dioxide concentration measurement assembly, the band of concentration of patient and be useful on the absolute pressure transducer of measuring absolute pressure and the control PCB that is used for the relative pressure sensor of measuring flow, and the vacuum pump assembly that is used for providing gas sampling power.Patient's Exhaled gasesS is process carbon dioxide concentration measurement assembly under the effect of air pump, then flow through absolute pressure transducer and relative pressure sensor, discharges finally by air pump.Because carbon dioxide concentration measurement assembly, absolute pressure transducer, relative pressure sensor are connected with air pump and are connected by sebific duct, need a lot of rubber hose couplings of design, cause complicated integral structure, volume is bigger than normal.And the sebific duct that much is difficult to connect has increased the circulation area of patient's breath, produces unnecessary pressure and flow loss, makes the measured deviation of gas concentration lwevel, pressure and flow larger.In addition, air pump adopts screw or band directly to be fixed on metal derby or PCB mostly, has increased vibrations and noise, and overall security is also relatively poor.
Summary of the invention
A technical problem to be solved by this invention is to make up above-mentioned the deficiencies in the prior art, proposes a kind of air passage block.
A technical problem to be solved by this invention is to make up above-mentioned the deficiencies in the prior art, proposes a kind of end-expiratory carbon dioxide monitoring module that adopts above-mentioned air passage block to make.
The technical problem of air passage block of the present invention is solved by the following technical solutions:
This air passage block comprises block, described block one end is communicated with carbon dioxide concentration measurement assembly that be used for to measure gas concentration lwevel, the other end with for providing the vacuum pump assembly of gas sampling power to be communicated with.
The characteristics of this air passage block are:
Be provided with the discharge chamber that is communicated with the vacuum pump assembly, the inlet plenum that is communicated with the carbon dioxide concentration measurement assembly in described block;
Described discharge chamber is provided with a pore that has two places to be communicated with the outside, described inlet plenum be provided with respectively with the outside have an inboard pore that two places are communicated with, with an outside outside pore that has a place to be communicated with, the outside of described outside pore also be provided with have two places to be communicated with the outside and with the disconnected blind hole of inlet plenum;
Between the inboard pore of the pore of described discharge chamber and an outside place that is communicated with and described inlet plenum and the place that the outside is communicated with, be provided with the connection tube for generation of pressure drop.
The technical problem of air passage block of the present invention, adopt following further technical scheme to be solved:
The pore of described discharge chamber and the inboard pore and outside another place of being communicated with of outside another place that is communicated with described inlet plenum are respectively equipped with the interface that is connected with relative pressure sensor input.
The outside pore of described inlet plenum and outside connectivity part and described blind hole and an outside place that is communicated with are respectively equipped with the interface that is connected with absolute pressure gap sensor input.
The blind hole of described inlet plenum and outside another place that is communicated with directly communicate with outside atmosphere.
The technical problem of end-expiratory carbon dioxide monitoring module of the present invention is solved by the following technical solutions:
This end-expiratory carbon dioxide monitoring module, comprise that air passage block, carbon dioxide concentration measurement assembly, band are useful on the absolute pressure transducer of measuring absolute pressure and the control PCB that is used for the relative pressure sensor of measuring flow, and the vacuum pump assembly that is used for providing gas sampling power, described air passage block block one end is communicated with described carbon dioxide concentration measurement assembly, and the other end is communicated with described vacuum pump assembly.
The characteristics of this end-expiratory carbon dioxide monitoring module are:
Be provided with the discharge chamber that is communicated with the vacuum pump assembly, the inlet plenum that is communicated with the carbon dioxide concentration measurement assembly in described air passage block block;
Described discharge chamber is provided with a pore that has two places to be communicated with the outside, described inlet plenum be provided with respectively with the outside have an inboard pore that two places are communicated with, with an outside outside pore that has a place to be communicated with, the outside of described outside pore also be provided with have two places to be communicated with the outside and with the disconnected blind hole of inlet plenum;
Between the inboard pore of the pore of described discharge chamber and an outside place that is communicated with and described inlet plenum and the place that the outside is communicated with, be provided with the connection tube for generation of pressure drop.
The technical problem of end-expiratory carbon dioxide monitoring module of the present invention, adopt following further technical scheme to be solved:
The pore of described discharge chamber and the inboard pore and outside another place of being communicated with of outside another place that is communicated with described inlet plenum are respectively equipped with the interface that is connected with relative pressure sensor input.
The outside pore of described inlet plenum and outside connectivity part and described blind hole and an outside place that is communicated with are respectively equipped with the interface that is connected with absolute pressure gap sensor input.
The blind hole of described inlet plenum and outside another place that is communicated with directly communicate with outside atmosphere.
This gas end-expiratory carbon dioxide monitoring module also comprises main PCB plate and flexible PCB plate, and described flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate.
Described relative pressure sensor employing flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate.
Described absolute pressure gap sensor employing flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate.
The technical problem of end-expiratory carbon dioxide monitoring module of the present invention, below employing further technical scheme solved:
Described gas concentration lwevel test suite inside is provided with temperature sensor, makes measurement more accurate.
Described carbon dioxide concentration measurement assembly, comprise infrared light supply, infrared sensor and relevant parts, be fixed on the main PCB plate, its top is provided with gas source interface, the side is provided with Sampling Interface on one side, and another side is provided with electromagnetic valve, and described Sampling Interface is connected with the inlet plenum of described air passage block, the discharge chamber of described air passage block directly is connected with the vacuum pump assembly, has saved miscellaneous pipeline and has connected.
Described vacuum pump assembly comprises vacuum pump and silica gel mount pad thereof, and described vacuum pump mount pad is provided with the vacuum pump mount pad is fixed on dress back-off on the main PCB plate, makes that vacuum pump assembly compactness is small and exquisite, good airproof performance, and the simple installation of vacuum pump is reliable.
The beneficial effect that the present invention is compared with the prior art is:
Air passage block of the present invention is with gas concentration lwevel test suite, absolute pressure transducer, relative pressure sensor and vacuum pump assembly integrated design, having saved miscellaneous pipeline connects, reduced the circulation area of patient's breath, thereby reduced pressure and flow loss when patient's breath transmits in monitoring modular, made the measurement of gas concentration lwevel, pressure and flow that patient is breathed out more accurate.Also by the connection tube that produces pressure drop is set, for relative pressure sensor provides pressure reduction with measuring flow, simplify overall structure and installation, also obviously reduced volume.Absolute pressure gap sensor, relative pressure sensor adopt the flexible PCB plate to be connected with the main PCB plate respectively, obviously save the space; Gas concentration lwevel test suite inside is provided with temperature sensor, makes measurement more accurate; Vacuum pump adopts the silica gel seat to fix, and makes that vacuum pump assembly compactness is small and exquisite, good airproof performance, and the simple installation of vacuum pump is reliable.Can be widely used in the clinical PETCO that patient is carried out continuous non-invasive
2In determinator.
Description of drawings
Fig. 1 is the structure cutaway view of the air passage block of the specific embodiment of the invention one;
Fig. 2 is the stereoscopic figure of the air passage block of Fig. 1;
Fig. 3 is the stereoscopic figure of the end-expiratory carbon dioxide monitoring module of the specific embodiment of the invention two;
Fig. 4 is the stereoscopic figure of the carbon dioxide concentration measurement assembly of Fig. 3;
Fig. 5 is the stereoscopic figure of the vacuum pump assembly of Fig. 3.
The specific embodiment
Below in conjunction with the specific embodiment and contrast accompanying drawing the invention will be further described.
The specific embodiment one
A kind of air passage block 4 as shown in Figure 1, 2, the in end of its block is communicated with carbon dioxide concentration measurement assembly 2, the out end is communicated with vacuum pump assembly 1.Be provided with the discharge chamber that is communicated with vacuum pump assembly 1 in block, and the inlet plenum that is communicated with carbon dioxide concentration measurement assembly 2.
Discharge chamber is provided with a pore a who has two places to be communicated with the outside, inlet plenum be provided with respectively with the outside have an inboard pore b that two places are communicated with, with an outside outside pore c who has a place to be communicated with, the outside of outside pore c also be provided with have two places to be communicated with outside atmosphere and with the disconnected blind hole d of inlet plenum;
Between the inboard pore b of the pore a of discharge chamber and an outside place that is communicated with and inlet plenum and the place that the outside is communicated with, be provided with the Ω shape connection tube 3 for generation of pressure drop.
The specific embodiment two
A kind of end-expiratory carbon dioxide monitoring module as shown in Fig. 3 ~ 5, comprise air passage block 4, be used for to measure gas concentration lwevel carbon dioxide concentration measurement assembly 2, be used for providing vacuum pump assembly 1, main PCB plate 7 and the flexible PCB plate of gas sampling power.The flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with main PCB plate 7.
The in end of air passage block 4 blocks is communicated with carbon dioxide concentration measurement assembly 2, the out end is communicated with vacuum pump assembly 1.Be provided with the discharge chamber that is communicated with vacuum pump assembly 1 in block, and the inlet plenum that is communicated with carbon dioxide concentration measurement assembly 2.
Discharge chamber is provided with a pore a who has two places to be communicated with the outside, inlet plenum be provided with respectively with the outside have an inboard pore b that two places are communicated with, with an outside outside pore c who has a place to be communicated with, the outside of outside pore c also be provided with have two places to be communicated with outside atmosphere and with the disconnected blind hole d of inlet plenum;
Between the inboard pore b of the pore a of discharge chamber and an outside place that is communicated with and inlet plenum and the place that the outside is communicated with, be provided with the Ω shape connection tube 3 for generation of pressure drop.
Measure with two inputs of relative pressure sensor 5 and be connected with the interface of the inboard pore b of the pore a of discharge chamber, inlet plenum respectively.Relative pressure sensor 5 employing flexible PCB plates are embedded in the middle mode of hardboard by adagio and are connected with main PCB plate 7.
Two inputs measuring with absolute pressure gap sensor 6 are connected with the outside pore c of inlet plenum, the interface of blind hole d respectively.Absolute pressure gap sensor 6 employing flexible PCB plates are embedded in the middle mode of hardboard by adagio and are connected with main PCB plate 7.
Gas concentration lwevel test suite 2 inside are provided with temperature sensor 8, make measurement more accurate.
The carbon dioxide concentration measurement assembly comprises infrared light supply, infrared sensor and relevant parts, be fixed on the main PCB plate, its top is provided with gas source interface 9, the side is provided with Sampling Interface 10 on one side, another side is provided with electromagnetic valve, Sampling Interface 10 is connected with the inlet plenum of air passage block 4, and the discharge chamber of air passage block 4 directly is connected with vacuum pump assembly 1, has saved miscellaneous pipeline and has connected.
Vacuum pump assembly 1 comprises vacuum pump 11 and silica gel mount pad 12 thereof, mount pad 12 is provided with the installation back-off, by back-off is installed, vacuum pump 11 mount pads are fixed on main PCB plate 7, make compact small and exquisite, the good airproof performance of vacuum pump assembly 1, and the simple installation of vacuum pump are reliable.
Under the swabbing action of the vacuum pump 11 in vacuum pump assembly 1, gas flows in the inlet plenum of air passage block 4 from carbon dioxide concentration measurement assembly 2, flow into Ω shape connection tube 3 through pore b again, and flow into again by pore a in the discharge chamber of air passage block 4, finally flow out air passage block 4.
Absolute pressure gap sensor 6 is by detecting the pressure reduction between pore c and blind hole d, i.e. pressure reduction between gas and outside atmosphere is measured the actual pressure of gas.Gas is flowing to the rear generation pressure drop of Ω shape connection tube 3, provides for relative pressure sensor 5 and measures the required pressure reduction that possesses, and by the pressure reduction that relative pressure sensor 5 passes through between detection pore a and pore b, measure the flow of gas.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, make without departing from the inventive concept of the premise some being equal to substitute or obvious modification, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. an air passage block, comprise block, described block one end is communicated with the carbon dioxide concentration measurement assembly that is used for measure gas concentrations, the other end with for providing the vacuum pump assembly of gas sampling power to be communicated with, it is characterized in that:
Be provided with the discharge chamber that is communicated with the vacuum pump assembly, the inlet plenum that is communicated with the carbon dioxide concentration measurement assembly in described block;
Described discharge chamber is provided with a pore that has two places to be communicated with described block outside, described inlet plenum is provided with respectively an outside pore that an inboard pore that two places are communicated with is arranged, have a place to be communicated with described block outside with described block outside, the outside of described outside pore also be provided with have two places to be communicated with described block outside and with the disconnected blind hole of inlet plenum;
Between the inboard pore of the pore of described discharge chamber and a described block outside place that is communicated with and described inlet plenum and a place that described block outside is communicated with, be provided with the connection tube for generation of pressure drop.
2. air passage block as claimed in claim 1 is characterized in that:
The inboard pore of the pore of described discharge chamber and outside another place that is communicated with of described block and described inlet plenum and described block outside be communicated with another locate, be respectively equipped with the interface that is connected with relative pressure sensor input.
3. air passage block as claimed in claim 1 or 2 is characterized in that:
The outside pore of described inlet plenum and the outside connectivity part of described block and described blind hole and the outside place that is communicated with of described block are respectively equipped with the interface that is connected with absolute pressure gap sensor input.
4. air passage block as claimed in claim 1 is characterized in that:
The blind hole of described inlet plenum and outside another place that is communicated with of described block directly communicate with described block outside atmosphere.
5. end-expiratory carbon dioxide monitoring module, comprise that air passage block, carbon dioxide concentration measurement assembly, band are useful on the absolute pressure transducer of measuring absolute pressure and the control PCB that is used for the relative pressure sensor of measuring flow, and the vacuum pump assembly that is used for providing gas sampling power, described air passage block block one end is communicated with described carbon dioxide concentration measurement assembly, the other end and described vacuum pump assembly connect, and it is characterized in that:
Be provided with the discharge chamber that is communicated with the vacuum pump assembly, the inlet plenum that is communicated with the carbon dioxide concentration measurement assembly in described air passage block block;
Described discharge chamber is provided with a pore that has two places to be communicated with described block outside, described inlet plenum is provided with respectively an outside pore that an inboard pore that two places are communicated with is arranged, have a place to be communicated with described block outside with described block outside, the outside of described outside pore also be provided with have two places to be communicated with described block outside and with the disconnected blind hole of inlet plenum;
Between the inboard pore of the pore of described discharge chamber and a described block outside place that is communicated with and described inlet plenum and a place that described block outside is communicated with, be provided with the connection tube for generation of pressure drop.
6. end-expiratory carbon dioxide monitoring module as claimed in claim 5 is characterized in that:
The inboard pore of the pore of described discharge chamber and described block outside another place that is communicated with and described inlet plenum and described block outside be communicated with another locate, be respectively equipped with the interface that is connected with relative pressure sensor input;
The outside pore of described inlet plenum and the outside connectivity part of described block and the outside place that is communicated with of described blind hole and described block are respectively equipped with the interface that is connected with absolute pressure gap sensor input;
The blind hole of described inlet plenum and outside another place that is communicated with of described block directly communicate with described block outside atmosphere.
7. end-expiratory carbon dioxide monitoring module as claimed in claim 5 is characterized in that:
Also comprise main PCB plate and flexible PCB plate, described flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate;
Described relative pressure sensor employing flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate;
Described absolute pressure gap sensor employing flexible PCB plate is embedded in the middle mode of hardboard by adagio and is connected with the main PCB plate.
8. end-expiratory carbon dioxide monitoring module as claimed in claim 7 is characterized in that:
Described carbon dioxide concentration measurement component internal is provided with temperature sensor.
9. end-expiratory carbon dioxide monitoring module as claimed in claim 8 is characterized in that:
Described carbon dioxide concentration measurement assembly is fixed on the main PCB plate, and its top is provided with gas source interface, on one side the side is provided with Sampling Interface, another side is provided with electromagnetic valve, and described Sampling Interface is connected with the inlet plenum of described air passage block.
10. end-expiratory carbon dioxide monitoring module as claimed in claim 9 is characterized in that:
Described vacuum pump assembly comprises vacuum pump and silica gel mount pad thereof, and described vacuum pump mount pad is provided with the vacuum pump mount pad is fixed on dress back-off on the main PCB plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910108119 CN101609089B (en) | 2009-06-22 | 2009-06-22 | Air passage block and end-expiratory carbon dioxide monitoring module manufactured by adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910108119 CN101609089B (en) | 2009-06-22 | 2009-06-22 | Air passage block and end-expiratory carbon dioxide monitoring module manufactured by adopting same |
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| Publication Number | Publication Date |
|---|---|
| CN101609089A CN101609089A (en) | 2009-12-23 |
| CN101609089B true CN101609089B (en) | 2013-06-19 |
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| CN 200910108119 Active CN101609089B (en) | 2009-06-22 | 2009-06-22 | Air passage block and end-expiratory carbon dioxide monitoring module manufactured by adopting same |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217320B (en) * | 2012-01-19 | 2016-12-14 | 深圳迈瑞生物医疗电子股份有限公司 | A kind of gas treatment equipment and armarium |
| CN103637804A (en) * | 2013-10-09 | 2014-03-19 | 韩根来 | Human body energy metabolism detector |
| CN106053387B (en) * | 2016-06-29 | 2019-04-23 | 南京青辰光电科技有限公司 | A kind of exhaled gas detection method and device |
| CN108375458A (en) * | 2018-03-21 | 2018-08-07 | 重庆安木科技有限公司 | A kind of air-leakage test instrument |
| CN113189023A (en) * | 2020-01-14 | 2021-07-30 | 深圳市先亚生物科技有限公司 | Method and system for measuring trace components of expired air by spectroscopy |
| CN111407280B (en) * | 2020-03-10 | 2022-04-15 | 山东大学 | End-tidal CO of noninvasive ventilator2Monitoring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791647Y (en) * | 2005-04-13 | 2006-06-28 | 蒋玉华 | Wind-speed measuring device |
| CN201438173U (en) * | 2009-06-22 | 2010-04-14 | 深圳市安保科技有限公司 | Gas circuit block and end-tidal carbon dioxide monitoring module made by adopting same |
-
2009
- 2009-06-22 CN CN 200910108119 patent/CN101609089B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2791647Y (en) * | 2005-04-13 | 2006-06-28 | 蒋玉华 | Wind-speed measuring device |
| CN201438173U (en) * | 2009-06-22 | 2010-04-14 | 深圳市安保科技有限公司 | Gas circuit block and end-tidal carbon dioxide monitoring module made by adopting same |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-274393A 2005.10.06 |
| JP特开平11-118543A 1999.04.30 |
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| CN101609089A (en) | 2009-12-23 |
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Address after: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Security Medical Technology Co.,Ltd. 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: AMBULANC (SHENZHEN) TECH. Co.,Ltd. |
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