Respiration sampling instrument and method of sampling respiration

The technology of a sampler and sampling tube, which is applied in the field of breath sampler and diagnostic sampling device, can solve the problems of inconvenient use, limited scope of application, and discomfort of the examinee, and achieve the effects of simple structure, ensuring sampling accuracy, and convenient use

Inactive Publication Date: 2008-08-20
南京星芒科技咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the structure of this collector is still relatively complicated, which will inevitably bring discomfort to the examinee, and can only collect the sputum produced by coughing, which is not only not convenient to use, but also has a limited scope of application.

Method used

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  • Respiration sampling instrument and method of sampling respiration
  • Respiration sampling instrument and method of sampling respiration
  • Respiration sampling instrument and method of sampling respiration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The breathing sampler of the present embodiment is as figure 1 As shown, an L-shaped sampling tube 1 is included, and one end of the sampling tube is an exhalation port 11 and the other end is an air outlet port 12 . The exhalation port 12 of the sampling tube 1 is covered with a mouth 2 for the subject to blow (or cough), and the sampling tube 11 has two ports that only allow exhaled air to enter through the exhalation port 11 and then pass through the exhalation port 12. Diaphragm check valves 3 and 4 for discharge. Wherein, the membrane elasticity of the one-way valve 4 is greater than that of the one-way valve, so the opening pressure is higher, so that when the subject exhales, an appropriate high pressure greater than atmospheric pressure can be formed in the airflow channel between the two one-way valves.

[0023] Between the two one-way valves 3 and 4 in the sampling tube 1, there is an activated carbon adsorbent 5 distributed on a layered filter to form a samp...

Embodiment 2

[0026] The breath sampler of this embodiment is as figure 2 As shown, the differences from the first embodiment mainly include: the sampling tube 1 is a straight tube, and the mouth 2 is an L-shaped folded tube. The advantage of using a straight tube structure is that it is easy to take out the adsorbent in the tube, and it is more convenient to transport and store. In addition, the cross-section of the separation and retention device 5 in the sampling tube is honeycomb-shaped, so that the adsorbent therein can have a larger specific surface area, which is beneficial to the adsorption and collection of target substances. Substances such as microspheres and nanospheres are adsorbed on the surface of the separation and retention device 5 as adsorbents.

[0027] The respiratory sampler of this embodiment can be packed separately, so it is also equipped with two sealing caps for covering the exhalation port and the air outlet of the sampling tube. Before use, the sealing cap is...

Embodiment 3

[0030] The breath sampler of this embodiment is as image 3 As shown, different from the second embodiment, the mouth 2 is essentially a three-way, the upper port is the same as the second embodiment, and the sampling tube is inserted, and the lower port is inserted with an air suction pipe, which has Inhalation port 6 and air inlet 8, the inhalation port 6 communicates with the mouth 2, and the inhalation channel between the inhalation pipe from the inhalation port 6 to the air inlet 8 is provided with only allowing air flow to flow from the air inlet to the inhalation port. The two one-way valves 9 and 10 of the gas port are provided with a ventilation mixing device 7 between the two one-way valves, which can be used to load medicines or reactants that are helpful for testing. When in use, the subject first inhales the air containing the drug or reactant through the inhalation tube after holding his mouth, and then exhales it, so that the sample collected in this way will be...

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Abstract

The invention relates to a breath sampling instrument and the method for sampling breath, belonging to technical field of medical installation. The breath sampling instrument comprises a probe tube which is provided with a gas port and an air outlet. A mouth is arranged on the gas port of the probe tube and a first check valve and a second check valve are arranged in the airflow channel between the gas port and the air outlet. A test sample disconnecting and intercepting device is arranged between the first check valve and the second check valve. By using the breath sampling instrument, the airflow blown out can open the first check valve and then enter the airflow channel when the tester keeps the instrument in mouth to blow or cough, and the test sample disconnecting and intercepting device can separate and keep the fluid phase or the solid phase of the airflow blown out. The gas phase separated opens the second check valve before discharging and then the test sample disconnecting and intercepting device is put out for laboratory test. The invention can not harm or upset the tester and also has the advantages of simple structure and convenient usage, so can be used in quick diagnosis of different diseases.

Description

technical field [0001] The invention relates to a diagnostic sampling device, in particular to a breath sampler and a sampling method using the sampler, belonging to the technical field of medical equipment. Background technique [0002] At present, taking blood samples from subjects for laboratory tests is the main method for diagnosing many diseases such as viral influenza. Although this blood test diagnosis method has strong pertinence and high accuracy, it will inevitably leave wounds in the blood test, which not only brings pain to the examinee, but also may cause cross-infection. Or even lead to unimaginable serious consequences. [0003] In order to solve the problems existing in blood tests, the Chinese patent application with the announcement number CN201029890 and the publication date of 2008.03.05 discloses a lower respiratory airway droplet collector, which consists of a housing, a connecting rod, an upper cover, a bottom The housing is composed of a cover and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/097A61B10/00G01N1/22
Inventor 张啸王智刚宋冬生
Owner 南京星芒科技咨询有限公司
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