Oxygenated separation type bronchoalveolar lavage fluid collection device

Abstract

The invention discloses an oxygenated separation type bronchoalveolar lavage fluid collection device. The device includes a lavage tube, a normal saline container, a control device and a collection container; normal saline is sprayed out from an opening of the tube and side wall holes, multi-directional stereoscopic extrusion flushing is achieved, the flushing effect is enhanced, a pressurizing valve is a one-way pressurizing outlet valve, flushing and recycling are independently completed, and backflow of the normal saline does not occur; a reducing valve is used for buffer decompression of received oxygen, the pressure of oxygen is prevented from being large, and oxygen can be safely used by patients; a piston in a collection container is recycled through manual control, collected lavagefluid is filtered through a filter net, impurities are effectively removed, the bottom of the collection container is connected with a liquid collection funnel, collection of lavage fluid samples ata fluid outlet is controlled through a fluid outlet switch, in the collection process, multiple-sample collection can be directly conducted, sampling is convenient, and operation is simple.

Description

technical field [0001] The invention relates to the technical field of bronchoalveolar lavage, in particular to an oxygenation and separation type bronchoalveolar lavage fluid collection device. Background technique [0002] In bronchoalveolar lavage, the pulmonary segments or sub-segments below the bronchi are repeatedly lavaged and recovered with sterile saline through a fiberoptic bronchoscope, and a series of tests and analyzes are performed to obtain the characteristics and activities of the lower respiratory tract lesions. to help establish a diagnosis. It is suitable for the etiological diagnosis of lung infection, especially immunocompromised and immunodeficiency lung infection, the cytological diagnosis of diffuse and peripheral lung tumors, interstitial lung diseases, such as sarcoidosis, idiopathic pulmonary Diagnosis, treatment, curative effect and prognosis estimation of interstitial fibrosis, exogenous allergic alveolitis, alveolar proteinosis, collagen vessel...

AI Technical Summary

Problems solved by technology

[0004] At present, the collection method of bronchoalveolar lavage fluid is to directly extract bronchoalveolar lavage fluid through a needle tube, which is difficult to operate. The lavage fluid collected by the existing bronchoalveolar lavage fluid collector needs to be filtered before sampling and detection. The recovery rate of washing is low, which is easy to cause the spread of infection and other lesions; when uninterrupted multi-group sampling is required, the collection device needs to be replaced frequently, the process is complicated, and it causes great pain to the patient

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