Liquid collecting device for bronchoscope

Abstract

The invention discloses a liquid collecting device for a bronchoscope. The device comprises a sampling tube, a collecting tube and a liquid collecting bottle; the sampling tube comprises an inner tubeand an outer tube; the inner tube sleeves the collecting tube; the collecting tube is communicated with a negative-pressure liquid collecting bottle; the lower pipe orifices of the inner tube and theouter tube are respectively provided with a pipe orifice opening and closing device. According to the invention, the liquid collecting device is matched with the bronchoscope to absorb the secretionat the far end of the airway and a bronchoalveolar lavage fluid, the orifice channels of the inner and outer tubes are closed with double air tightness, and the sterile environment in the whole process of introducing the device into the bronchoscope and performing collection is ensured; the opening of the umbrella-shaped structure can avoid the contact of the inner tube and the collecting tube with the upper airway secretion adhered to the surface of the air bag, thereby ensuring the reliability of the collected liquid sample; the bronchoalveolar lavage is carried out to ensure that the lavagefluid does not contact the upper airway secretion and the sampling is not polluted by the upper airway flora; the sampling amount is observed in the whole process, so that the rapid sampling and recording are convenient; and manual or automatic negative-pressure drainage sampling operation is carried out.

Description

technical field [0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a liquid collection device for bronchoscope. Background technique [0002] At present, the rise of pathogen gene sequencing has opened up a new world for the diagnosis of infectious diseases, and will become the mainstream method of disease diagnosis in the future. However, whether it is Xpert or NGS, the accuracy of collected samples needs to be ensured to obtain meaningful results. Bronchoscopic aspiration of distal airway secretions and bronchoscopic alveolar lavage and aspiration of lavage fluid are common methods for obtaining specimens from airway infection sites, but the existing liquid specimen collection devices are directly connected to the suction end of the bronchoscope In this way, the airway pathogens adhered to the distal end of the bronchoscope will inevitably be brought into the collection device, and the specimen will inevitably be contaminat...

AI Technical Summary

Problems solved by technology

Bronchoscopic aspiration of distal airway secretions and bronchoscopic alveolar lavage and aspiration of lavage fluid are common methods for obtaining specimens from airway infection sites, but the existing liquid specimen collection devices are directly connected to the suction end of the bronchoscope In this way, the airway pathogens adhered to the distal end of the bronchoscope will inevitably be brought into the collection device, and the specimen will inevitably be contaminated

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