Non-invasive system and method for simultaneously collecting aerosol and gas exhaled by human body

A non-invasive, exhaling technology, used in medical science, inoculation and ovulation diagnosis, surgery, etc., can solve the problems of inappropriate sampling volume and location of sampling personnel, high difficulty in movement, and false positive detection.

Active Publication Date: 2022-04-15
BEIJING HUATAI NOVA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupled with the high difficulty of the action, the sampling personnel often have improper sampling volume and location, which will cause false positives in the detection
Disease screening through exhaled breath has been extensively studied. T

Method used

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  • Non-invasive system and method for simultaneously collecting aerosol and gas exhaled by human body
  • Non-invasive system and method for simultaneously collecting aerosol and gas exhaled by human body
  • Non-invasive system and method for simultaneously collecting aerosol and gas exhaled by human body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A non-invasive system for simultaneously collecting human exhaled aerosol and gas in this embodiment includes:

[0051] Respiratory mask 1, sound monitoring equipment 2 is installed on the said breathing mask 1, said breathing mask 1 communicates with the main gas circuit 6 through the exhalation sampling channel 5, said sound monitoring equipment 2 is used to detect the loudness of the sampled person and send to the control device;

[0052] A bioaerosol counter 4, the bioaerosol counter 4 is installed on the exhalation sampling channel 5, and the detected bioaerosol quantity and the calculated bioaerosol concentration in the exhalation sampling channel 5 are sent to the control device;

[0053] An aerosol collection module, the air inlet of the aerosol collection module communicates with the gas outlet of the main gas circuit 6, and the gas outlet of the aerosol collection module communicates with the gas collection module;

[0054] The control module is used to send...

specific Embodiment approach 1

[0074] Specific implementation mode one, such as image 3 As shown, the aerosol collector 12 is provided with a solid sampling base, the solid sampling base is arranged correspondingly to the air outlet of the particle size cutting filter 11, and the solid sampling base includes electrostatic non-woven fiber, foam , any one of filter paper;

specific Embodiment approach 2

[0075] Specific implementation mode two, such as Figure 4 As shown, the aerosol collector 12 is provided with a liquid sampling base, the air outlet of the particle size cutting filter 11 extends into the liquid sampling base, and the bottom of the aerosol collector 12 is connected with a liquid transfer Pipe 125, the liquid transfer pipe 125 is provided with a valve; when the collection is finished, the valve on the liquid transfer pipe can be opened and used to transfer the liquid sampling base to an external device. The liquid sampling base can be physiological saline, PBS buffer, etc. The aerosol collector 12 is used to hold the liquid sampling base, so as to prevent the loss of the liquid sampling base due to the liquid level fluctuation caused by the air flow during operation.

[0076] When the aerosol particles move together with the airflow, the aerosol particles are dragged by the airflow. When the direction of the airflow changes, the radius of curvature of the aer...

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Abstract

The invention relates to a non-invasive system and method for simultaneously collecting aerosol and gas exhaled by a human body, the system comprises a breathing mask and a sound monitoring device, the breathing mask is communicated with a main gas path through an exhaled sampling channel, and the sound monitoring device is used for detecting the loudness of a sampled person and sending the loudness to a control device; the biological aerosol counter is installed on the exhaling sampling channel and sends the detected quantity and concentration of the biological aerosol in the exhaling sampling channel to the control device; the gas inlet of the aerosol collecting module is communicated with the gas outlet of the main gas path, and the gas outlet of the aerosol collecting module is communicated with the gas collecting module; the control module is used for sending a reminding signal to the reminding module when the concentration of the biological aerosol is lower than a preset concentration and the loudness is lower than a preset loudness; the control device is used for accumulatively calculating the number of the biological aerosols of the biological aerosol counter in the detection process and estimating the total sampling time according to the accumulated number of the biological aerosols, the sampled time and the total collection number of the target biological aerosols.

Description

technical field [0001] The invention relates to the related technical field of aerosol collection, in particular to a system and method for non-invasively collecting aerosol and gas exhaled by a human body simultaneously. Background technique [0002] In order to cope with a wide range of nucleic acid PCR detection, the current method for human nucleic acid sampling is mainly the nasopharyngeal swab method. This method needs to scrape the sampling head from the oral cavity or nasal cavity deep into the pharynx of the sampled person, which often brings discomfort to the sampled person and is unwilling to cooperate with the inspection. Coupled with the high difficulty of the action, the sampling personnel often have improper sampling volume and location, which will cause false positives in the detection. Disease screening through exhaled breath has been extensively studied. The traditional method of sampling human exhaled breath is air bag sampling, that is, a person exhales ...

Claims

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Application Information

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IPC IPC(8): A61B10/00
CPCA61B10/00A61B2010/0087
Inventor 王辰熊胜军粟勇李振颖袁丁吴红彦夏征
Owner BEIJING HUATAI NOVA TECH
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