Collection device of expired air condensed liquid

Abstract

The invention provides a collection device of expired air condensed liquid. The collection device comprises an oral-nasal mask, a cooling pipeline and a refrigerating system, wherein the oral-nasal mask is used for collecting expired air of a person to be tested; one end of the cooling pipeline is connected with the oral-nasal mask and the other end of the cooling pipeline is connected with a sampling pipe; the refrigerating system acts on the cooling pipe and the expired air in the cooling pipeline is cooled to be lower than a dew point so that the expired air is converted into the condensed liquid; the condensed liquid falls into the sampling pipe due to gravity through setting an angle of the cooling pipeline; the collection device can further comprise a quantifying system; a liquid level height in the sampling pipe is monitored through a photoelectric induction manner; when the condensed liquid in the sampling pipe reaches a pre-set liquid level height, prompting information is sent out and specimen collection is stopped; the device can be used for collecting the expired air condensed liquid under the condition that normal breathing of the person to be tested is not disturbed or manual ventilation is utilized, and the problems of a current collection device of expired air condensed liquid that standards are not uniform, the effect is not stable and the automation degree is poor are solved.

Description

technical field [0001] The invention belongs to the technical field of medical diagnosis auxiliary equipment, in particular to an exhaled breath condensate collecting device. Background technique [0002] Changes in certain components of exhaled air can reflect the pathophysiological state of the lungs and airways. Exhaled air is condensed to form a liquid state. The composition detection has the advantages of non-invasive, simple and easy to operate, and can be repeated. It can be used as a screening tool for high-risk groups of lung cancer. It is a new method for investigation, early auxiliary diagnosis, disease monitoring and curative effect judgment. At present, it is still in the exploratory stage, and there are still many unresolved problems, among which the exhaled gas condensation device is an important part of the popularization and application of this detection. [0003] There are mainly three types of devices used to collect exhaled condensate: one is the RTUBE p...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a device for collecting exhaled breath condensate, which can collect the exhaled breath of the subject, convert it into condensate through a refrigeration device, and automatically determine the The height of the liquid level and prompts are given, which solves the problems of unstable effect and poor automation of the current exhaled breath condensate device

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