CN108245757A - Breathed air acquisition device based on breathing circuit - Google Patents
Breathed air acquisition device based on breathing circuit Download PDFInfo
- Publication number
- CN108245757A CN108245757A CN201711380849.6A CN201711380849A CN108245757A CN 108245757 A CN108245757 A CN 108245757A CN 201711380849 A CN201711380849 A CN 201711380849A CN 108245757 A CN108245757 A CN 108245757A
- Authority
- CN
- China
- Prior art keywords
- gas collecting
- gas
- steel
- collecting tube
- end connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
- A61M16/0841—Joints or connectors for sampling
- A61M16/085—Gas sampling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
- A61M2016/102—Measuring a parameter of the content of the delivered gas
- A61M2016/103—Measuring a parameter of the content of the delivered gas the CO2 concentration
Abstract
Breathed air acquisition device based on breathing circuit, one end connection person's windpipe of tracheal catheter, the end of other end connection snorkel and the end of gas collecting tube, the other end connection lung ventilator air taking port of snorkel, the other end connection lung ventilator collection gas port of gas collecting tube is equipped with CO2 gated valves, fairlead one end connection gas collecting tube on gas collecting tube close to the place of tracheal catheter end, the other end connects one end of a stainless cylinder of steel, the connection or disconnection of CO2 gated valves control fairlead and gas collecting tube；Equipped with Teflon adsorption column in stainless cylinder of steel, stainless cylinder of steel connects one end of drainage tube, and the other end of drainage tube connects air pump, flow controller is housed on drainage tube；CO2 concentration analysis devices for gas in tracheal catheter, the signal output end connection central controller of CO2 concentration analysis devices are housed, the control signal output of central controller connects CO2 gated valves, flow controller, air pump respectively on CO2 gated valves；Fairlead, stainless cylinder of steel, drainage tube are equipped with temperature controller.
Description
Technical field
The present invention relates to a kind of characteristics of contaminated respiratory droplets gas collecting devices.
Background technology
Characteristics of contaminated respiratory droplets gas is acquired, the ingredient and concentration of its volatile organic matter are detected after condensation, is the disease of human lung
Disease diagnosis provides foundation, has become a research direction.Acquisition characteristics of contaminated respiratory droplets gas is the basis of research and diagnostic work,
Accuracy relation is to the reliability of experiment conclusion.Existing breathed air acquisition device is synchronously adopted in patient per's exhaled gas
Collect gas, but the gas more than 200 milliliters that patient breathes out at first is anatomical dead space gas, is not breathed out after human body aloveolar ventilation
Gas, carbon dioxide content is low, non-targeted gas.Subsequent gases are because have passed through the gas exchanges of alveolar, carbon dioxide
Content is high, is object gas.Therefore, there is the problem of sampling is inaccurate in existing breathed air acquisition device.Lung ventilator pipe at present
The acquisition gas methods of road connection lack unified standard, also available without reliable commercialized device.
Invention content
The present invention will overcome the disadvantages mentioned above of the prior art, provide a kind of exhaled gas of accurately acquisition object gas and adopt
Acquisition means.
Breathed air acquisition device based on breathing circuit, one end connection person's windpipe of tracheal catheter, the other end connect
The end of tracheae and the end of gas collecting tube, the other end connection lung ventilator air taking port of snorkel are picked, the other end of gas collecting tube connects
Connect lung ventilator collection gas port, it is characterised in that：CO2 gated valves are equipped with close to the place of tracheal catheter end on gas collecting tube, are drawn
Pipe one end connects gas collecting tube, and the other end connects the company of one end of a stainless cylinder of steel, CO2 gated valves control fairlead and gas collecting tube
On-off is opened；Equipped with Teflon adsorption column in stainless cylinder of steel, the other end of stainless cylinder of steel connects one end of drainage tube, drainage tube
The other end connects air pump, and flow controller is housed on drainage tube；It is equipped on CO2 gated valves for gas in tracheal catheter
CO2 concentration analysis devices, the signal output end connection central controller of CO2 concentration analysis devices, the control signal of central controller are defeated
Outlet connects CO2 gated valves, flow controller, air pump respectively；Fairlead, stainless cylinder of steel, drainage tube are controlled equipped with temperature
Device.
The air taking port of lung ventilator pair is responsible for supplying gas to patient lungs, and the collection gas port of lung ventilator is responsible for recycling what patient's exhalation came
Exhaust gas.
CO2 gated valves are in off state in the anatomical dead space gas initially breathed out, are increased when detecting that CO2 is divided
When, valve starts to open, and device starts to collect gas with constant flow rate.
Temperature controller by the control of the gas temperature of acquisition in the temperature range of setting, generally 40 degrees centigrades, with
It prevents gas from forming condensate liquid, improves gaseous volatile organic matter concentrations.Teflon adsorption column is used in adsorption gas flow
Volatile organic matter.Flow controller sets constant flow value, real to keep constant the air velocity around adsorption column
Result is tested to repeat.Air pump maintains air-flow to use when acquiring gas.
It is an advantage of the invention that：Object gas can be accurately collected, improves the volatile organic matter detection of exhaled gas
The accuracy of detection of concentration.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings.
Breathed air acquisition device based on breathing circuit, one end connection person's windpipe 1 of tracheal catheter 2, the other end
Connect snorkel 3 end and gas collecting tube 4 end, snorkel 3 the other end connection lung ventilator air taking port, gas collecting tube 4 it is another
One end connects lung ventilator collection gas port, is equipped with CO2 gated valves 10, fairlead close to the place of 2 end of tracheal catheter on gas collecting tube 4
5 one end connect gas collecting tube 4, and the other end connects one end of a stainless cylinder of steel 6, and CO2 gated valves 10 control fairlead 5 and gas collecting tube
4 connection or disconnection；Equipped with Teflon adsorption column 7 in stainless cylinder of steel 6, the other end of stainless cylinder of steel 6 connects the one of drainage tube 8
End, the other end of drainage tube 8 connect air pump 9, flow controller 11 are housed on drainage tube 8；It is equipped with and is directed on CO2 gated valves 10
The CO2 concentration analysis devices of gas in tracheal catheter 2, the signal output end connection central controller of CO2 concentration analysis devices, center control
The control signal output of device processed connects CO2 gated valves 10, flow controller 11, air pump 9 respectively；Fairlead 4, stainless cylinder of steel
6th, drainage tube 8 is equipped with temperature controller.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (1)
1. the breathed air acquisition device based on breathing circuit, one end connection person's windpipe of tracheal catheter, other end connection
The end of snorkel and the end of gas collecting tube, the other end connection lung ventilator air taking port of snorkel, the other end connection of gas collecting tube
Lung ventilator collection gas port, it is characterised in that：On gas collecting tube CO2 gated valves, fairlead are equipped with close to the place of tracheal catheter end
One end connects gas collecting tube, and the other end connects one end of a stainless cylinder of steel, the connection of CO2 gated valves control fairlead and gas collecting tube
Or it disconnects；Equipped with Teflon adsorption column in stainless cylinder of steel, one end of the other end connection drainage tube of stainless cylinder of steel, drainage tube it is another
One end connects air pump, and flow controller is housed on drainage tube；CO2 for gas in tracheal catheter is housed on CO2 gated valves
Concentration analysis device, the signal output end connection central controller of CO2 concentration analysis devices, the control signal output of central controller
Connection CO2 gated valves, flow controller, air pump respectively；Fairlead, stainless cylinder of steel, drainage tube are equipped with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380849.6A CN108245757A (en) | 2017-12-20 | 2017-12-20 | Breathed air acquisition device based on breathing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380849.6A CN108245757A (en) | 2017-12-20 | 2017-12-20 | Breathed air acquisition device based on breathing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245757A true CN108245757A (en) | 2018-07-06 |
Family
ID=62723267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380849.6A Pending CN108245757A (en) | 2017-12-20 | 2017-12-20 | Breathed air acquisition device based on breathing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188853A (en) * | 2021-04-29 | 2021-07-30 | 中国科学院生态环境研究中心 | Mask type breath sampler and breath test mask |
| CN113230508A (en) * | 2021-05-28 | 2021-08-10 | 四川大学华西医院 | Universal respirator tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050065446A1 (en) * | 2002-01-29 | 2005-03-24 | Talton James D | Methods of collecting and analyzing human breath |
| CN1647756A (en) * | 2005-01-26 | 2005-08-03 | 浙江大学 | Respiration detecting method and its device for diagnosing early lung cancer |
| CN102375041A (en) * | 2011-09-16 | 2012-03-14 | 武汉市天虹仪表有限责任公司 | Online volatile organic matter analyzer and using method thereof |
| WO2012059768A1 (en) * | 2010-11-05 | 2012-05-10 | The University Of Manchester | Apparatus and methods for breath sampling |
| CN105784433A (en) * | 2016-03-08 | 2016-07-20 | 浙江大学 | Parallel collection device for VOCs and EBCs in exhaled air from human body |
| CN208693991U (en) * | 2017-12-20 | 2019-04-05 | 浙江大学 | Breathed air acquisition device based on breathing circuit |
-
2017
- 2017-12-20 CN CN201711380849.6A patent/CN108245757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050065446A1 (en) * | 2002-01-29 | 2005-03-24 | Talton James D | Methods of collecting and analyzing human breath |
| CN1647756A (en) * | 2005-01-26 | 2005-08-03 | 浙江大学 | Respiration detecting method and its device for diagnosing early lung cancer |
| WO2012059768A1 (en) * | 2010-11-05 | 2012-05-10 | The University Of Manchester | Apparatus and methods for breath sampling |
| CN102375041A (en) * | 2011-09-16 | 2012-03-14 | 武汉市天虹仪表有限责任公司 | Online volatile organic matter analyzer and using method thereof |
| CN105784433A (en) * | 2016-03-08 | 2016-07-20 | 浙江大学 | Parallel collection device for VOCs and EBCs in exhaled air from human body |
| CN208693991U (en) * | 2017-12-20 | 2019-04-05 | 浙江大学 | Breathed air acquisition device based on breathing circuit |
Non-Patent Citations (2)
| Title |
|---|
| AGNESW BOOTS ET AL: "The versatile use of exhaled volatile organic compounds in human health and disease", 《JOURNAL OF BREATH RESEARCH》, no. 6, pages 3 * |
| JIANPING GAO ET AL: "Breath analysis for noninvasively differentiating Acinetobacter baumannii ventilator-associated pneumonia from its respiratory tract colonization of ventilated patients", 《JOURNAL OF BREATH RESEARCH》, no. 10, pages 4 - 5 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188853A (en) * | 2021-04-29 | 2021-07-30 | 中国科学院生态环境研究中心 | Mask type breath sampler and breath test mask |
| CN113188853B (en) * | 2021-04-29 | 2022-07-12 | 中国科学院生态环境研究中心 | Mask type breath sampler and breath test mask |
| CN113230508A (en) * | 2021-05-28 | 2021-08-10 | 四川大学华西医院 | Universal respirator tube |
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