A push-pull sterile cell brush for endoscope with replaceable brush head

Abstract

The invention discloses a push-pull type sterile cell brush provided with a replaceable brush head for an endoscope. The push-pull type sterile cell brush comprises a drainage tube, the brush head, a push-puller and a traction fiber, wherein the brush head is connected to the head of the drainage tube in a detachable way; a cell brush is arranged in the brush head; an opening is formed in the end, far away from the drainage tube, of the brush head; the traction fiber penetrates into the drainage tube, one end of the traction fiber is connected with the cell brush in a detachable way, and the other end of the traction fiber is connected with the push-puller; the cell brush is externally provided with a protective film; the head of the protective film is connected with the brush head, and the tail of the protective film is connected with the tail of the cell brush. The internal cell brush can be used for brushing bacteria living specimens and / or cell samples of an intestinal mucosal surface layer in a living intestinal cavity wall under the condition of being in conjunction with the drainage tube and the push-puller; furthermore, with the protection of the protective film, bacteria / cell brush pollution caused by the pollution to a channel of endoscopic biopsy forceps can be avoided. After the push-pull type sterile cell brush is used, the sterile cell brush head can be replaced, so that the cell brush can be repeatedly used in a germ-free condition; therefore, the collection credibility of samples of all intestinal tract parts can be maintained to the utmost extent while the cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of cell / bacteria sampling devices, in particular to a push-pull sterile cell brush for endoscopes with a replaceable brush head. Background technique [0002] It is known that the acquisition of living tissues and cells under an endoscope is one of the commonly used methods for clinical diagnosis. It has important diagnostic value for diseases such as tumor and inflammation. Although disposable cell brushes are routinely used clinically to obtain tissue, there are still specimen interferences caused by contamination of biopsy forceps channels. [0003] In addition, the intestinal microecological system is an important basis for human health and disease, and plays an important role in physiology, pathology, prevention, and treatment. The nutritional role of gut microbes is very important, such as synthesis of vitamins, digestion of carbohydrates, utilization of ammonia, utilization of lipids, and synthesis ...

AI Technical Summary

Problems solved by technology

[0004] At present, the intestinal microbial status is generally obtained by sampling the excrement, but the microorganisms in the excrement must be different from those in the living state. Only by directly obtaining the intestinal microorganisms in the living state can the research data be more accurate. At present, there is still a lack of special devices for sampling intestinal microorganisms from living human bodies and maintaining a sterile state

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