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Medical alveolar gas collecting device and collecting method thereof

A collection device and technology of alveolar gas, applied in application, medical science, vaccination and ovulation diagnosis, etc., can solve the problems of insufficient sample purity, and achieve the effect of avoiding cumbersomeness, saving cost and time

Pending Publication Date: 2022-04-05
SHENZHEN BREATHA BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a medical alveolar gas collection device and its collection method, which aims to solve the problem of insufficient sample purity when collecting alveolar gas, improve the accuracy of gas detection, avoid cumbersome sample collection, and save testing costs and time

Method used

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  • Medical alveolar gas collecting device and collecting method thereof
  • Medical alveolar gas collecting device and collecting method thereof
  • Medical alveolar gas collecting device and collecting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] In an embodiment of the present invention, a medical alveolar gas collection device 100 is provided, which is used to collect the alveolar gas of the user to be tested (that is, the remaining gas that removes the gas in the mouth and trachea when exhaling) to ensure the purity of gas detection Spend.

[0029] Such as Figure 1-Figure 3 As shown, the medical alveolar gas collection device 100 includes a three-way tube 10 and a dead space gas collection bag 20 and an alveolar gas collection bag 30 that are both connected to the three-way tube 10 . Wherein, the tee pipe 10 may be an "F" or "T" type tee pipe. In this embodiment, the “T” type tee includes a main pipe 11 and a first branch pipe 12 and a second branch pipe 13 respectively communicating with the main pipe 11 . The second branch pipe 13 is spaced apart from the first branch pipe 12 and located at the rear end of the main pipe 11 along the air intake direction. Further, the first branch pipe 12 is arranged ver...

Embodiment 2

[0035] The present invention also provides a medical alveolar gas collection method for collecting pure alveolar gas through the medical alveolar gas collection device 100 .

[0036] Such as Figure 4 As shown, the medical alveolar gas collection method includes the following steps S101-S104.

[0037] In step S101 , the first valve 51 is closed and the second valve 52 is opened, so that the person to be tested continuously blows air from the inlet end of the main pipe 11 .

[0038] Step S102 , the dead space gas collection bag 20 collects the pre-blown gas through the second branch pipe 13 .

[0039] Step S103, the first valve 51 is opened.

[0040] Step S104 , the alveolar gas collection bag 30 collects the post-insufflation gas through the first branch tube 12 .

[0041] Further, in one embodiment, when the first valve 51 adopts a spring steel ball valve and the second valve 52 adopts a straight-through valve, there is no need to open and close the first valve 51 and the ...

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Abstract

The invention discloses a medical alveolar gas collecting device which comprises a three-way pipe, a dead space gas collecting bag and an alveolar gas collecting bag, wherein the dead space gas collecting bag and the alveolar gas collecting bag are communicated with the three-way pipe; the three-way pipe comprises a main pipe, a first branch pipe and a second branch pipe, the second branch pipe and the first branch pipe are arranged at intervals and arranged at the rear end of the main pipe in the air inlet direction. The end, away from the main pipe, of the first branch pipe is in closed communication with the alveolar gas collecting bag through a first valve. The end, away from the main pipe, of the second branch pipe is in closed communication with the dead space gas collecting bag through a second valve. According to the device, pure alveolar gas can be collected, and the purity of a sample is controlled from the source, so that the precise test problem of VOCS gas detection in the medical field is ensured; meanwhile, a pure physical structure design is adopted, so that the complexity of sample collection is avoided, and the test cost and time are greatly saved.

Description

【Technical field】 [0001] The invention relates to the technical field of gas detection, in particular to a medical alveolar gas collection device and a collection method thereof. 【Background technique】 [0002] At present, for the gas detection method of VOCS (volatile organic compounds, volatile organic compounds) exhaled by a human body, a gas collecting device is usually used to collect and detect the gas exhaled by the person to be tested. Usually, collecting alveolar gas for detection has the advantage of higher accuracy of detection results than directly collecting exhaled air for detection. However, in the current process of collecting alveolar gas, either it is easy to mix dead space gas (that is, the gas in the oral cavity and trachea) during the collection process, resulting in insufficient sample purity, or the collection process is cumbersome and the gas collection efficiency is low. [0003] In view of this, it is necessary to provide a medical alveolar gas col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/00
Inventor 康军伟王磊李庆运王东鉴
Owner SHENZHEN BREATHA BIOTECHNOLOGY CO LTD
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