CN208693991U - Breathed air acquisition device based on breathing circuit - Google Patents
Breathed air acquisition device based on breathing circuit Download PDFInfo
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- CN208693991U CN208693991U CN201721787865.2U CN201721787865U CN208693991U CN 208693991 U CN208693991 U CN 208693991U CN 201721787865 U CN201721787865 U CN 201721787865U CN 208693991 U CN208693991 U CN 208693991U
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Abstract
Breathed air acquisition device based on breathing circuit, one end of tracheal catheter connects person's windpipe, the other end connects the end of snorkel and the end of gas collecting tube, the other end of snorkel connects ventilator air taking port, the other end of gas collecting tube connects ventilator collection port, and the place of close tracheal catheter end is equipped with CO2 gated valves on gas collecting tube, and fairlead one end connects gas collecting tube, the other end connects one end of a stainless cylinder of steel, and CO2 gated valves control the connection or disconnection of fairlead and gas collecting tube；Stainless cylinder of steel is provided with Teflon adsorption column, and 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；Equipped with the CO2 concentration analysis device for gas in tracheal catheter on CO2 gated valves, the signal output end of CO2 concentration analysis device connects central controller, and the control signal output of central controller is separately connected CO2 gated valves, flow controller, air pump；Fairlead, stainless cylinder of steel, drainage tube are equipped with temperature controller.
Description
Technical field
The utility model relates to a kind of characteristics of contaminated respiratory droplets gas collecting devices.
Background technique
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,
Reliability of the accuracy relation to 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, existing breathed air acquisition device has what sampling was not allowed.Ventilator pipe at present
The acquisition gas methods of road connection lack unified standard, also available without reliable commercialized device.
Summary of the invention
The utility model will overcome the disadvantages mentioned above of the prior art, provide a kind of expiratory air for accurately acquiring object gas
Body acquisition device.
Breathed air acquisition device based on breathing circuit, one end of tracheal catheter connect person's windpipe, and the other end connects
The end of tracheae and the end of gas collecting tube are picked, the other end of snorkel connects ventilator air taking port, and the other end of gas collecting tube connects
Connect ventilator collection port, it is characterised in that: the place on gas collecting tube close to tracheal catheter end is equipped with CO2 gated valves, draws
Pipe one end connects gas collecting tube, and the other end connects one end of a stainless cylinder of steel, and CO2 gated valves control the company of fairlead and gas collecting tube
On-off is opened；Stainless cylinder of steel is provided with Teflon adsorption column, and 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；Equipped with for gas in tracheal catheter on CO2 gated valves
The signal output end of CO2 concentration analysis device, CO2 concentration analysis device connects central controller, and the control signal of central controller is defeated
Outlet is separately connected CO2 gated valves, flow controller, air pump；Fairlead, stainless cylinder of steel, drainage tube are controlled equipped with temperature
Device.
The air taking port of ventilator pair is responsible for supplying gas to patient lungs, and the collection port of 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 range of the temperature controller by the gas temperature control of acquisition in setting, generally 40 degrees centigrades, with
It prevents gas from forming condensate liquid, improves gaseous volatile organic matter concentrations.Teflon adsorption column is in adsorption gas flow
Volatile organic matter.Flow controller sets constant flow value, real to keep constant the air velocity around adsorption column
It is repeatable to test result.Air pump maintains air-flow to use when acquiring gas.
The utility model has the advantages that: object gas can be accurately collected, the volatile organic matter of exhaled gas is improved
The detection accuracy of concentrations.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The technical solution of the utility model is further illustrated with reference to the accompanying drawing.
One end of breathed air acquisition device based on breathing circuit, tracheal catheter 2 connects person's windpipe 1, the other end
Connect the end of snorkel 3 and the end of gas collecting tube 4, the other end of snorkel 3 connects ventilator air taking port, gas collecting tube 4 it is another
One end connects ventilator collection port, and the place of close 2 end of tracheal catheter is equipped with CO2 gated valves 10, fairlead 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；Stainless cylinder of steel 6 is provided with Teflon adsorption column 7, and 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 device of gas in tracheal catheter 2, the signal output end of CO2 concentration analysis device connect central controller, center control
The control signal output of device processed is separately connected CO2 gated valves 10, flow controller 11, air pump 9；Fairlead 4, stainless cylinder of steel
6, drainage tube 8 is equipped with temperature controller.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, the protection scope of the utility model also and
In those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (1)
1. the breathed air acquisition device based on breathing circuit, one end of tracheal catheter connects person's windpipe, other end connection
The end of snorkel and the end of gas collecting tube, the other end of snorkel connect ventilator air taking port, the other end connection of gas collecting tube
Ventilator collection port, it is characterised in that: the place on gas collecting tube close to tracheal catheter end is equipped with CO2 gated valves, fairlead
One end connects gas collecting tube, and the other end connects one end of a stainless cylinder of steel, and CO2 gated valves control the connection of fairlead and gas collecting tube
Or it disconnects；Stainless cylinder of steel is provided with Teflon adsorption column, 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；Equipped with the CO2 for gas in tracheal catheter on CO2 gated valves
The signal output end of concentration analysis device, CO2 concentration analysis device connects central controller, the control signal output of central controller
It is separately connected CO2 gated valves, flow controller, air pump；Fairlead, stainless cylinder of steel, drainage tube are equipped with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721787865.2U CN208693991U (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 |
|---|---|---|---|
| CN201721787865.2U CN208693991U (en) | 2017-12-20 | 2017-12-20 | Breathed air acquisition device based on breathing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208693991U true CN208693991U (en) | 2019-04-05 |
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ID=65913605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721787865.2U Expired - Fee Related CN208693991U (en) | 2017-12-20 | 2017-12-20 | Breathed air acquisition device based on breathing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208693991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245757A (en) * | 2017-12-20 | 2018-07-06 | 浙江大学 | Breathed air acquisition device based on breathing circuit |
-
2017
- 2017-12-20 CN CN201721787865.2U patent/CN208693991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245757A (en) * | 2017-12-20 | 2018-07-06 | 浙江大学 | Breathed air acquisition device based on breathing circuit |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20201220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |