Disposable extraction device of target components of intestinal contents

Abstract

The invention discloses a disposable extraction device of target components of intestinal contents. The disposable extraction device comprises an extraction pipe, wherein the extraction pipe comprises a pipe body and a plurality of stages of filtering nets, wherein the upper end of the pipe body is provided with an opening and can be subjected to heat seal; the filtering nets are connected with the inner wall of the pipe body in a sealing manner; the pipe body also comprises liquid injection ends and liquid suction ends which are arranged on the lateral walls of the pipe body, wherein the liquid injection ends are positioned at the opening in the upper end and the first stage of filtering net, and the liquid suction ends are positioned between every two adjacent stages of filtering nets; the apertures of each filtering net from top to bottom have the trend of reducing stage by stage; the pipe body is made of a flexible high polymer material. The disposable extraction device disclosed by the invention has the beneficial effects that the structure is simple, the operation is convenient, an oxygen-free environment is provided for coprophilous fungi, the integrity of the coprophilous fungi can be guaranteed and the effect of the transplanted coprophilous fungi for treating diseases can be improved.

Description

[0001] technical field [0002] The invention relates to a medical collection device, in particular to a disposable extraction device for target components of intestinal contents. [0003] Background technique [0004] The contents of the human gastrointestinal tract include food residues, flora, parasite eggs and other active components, as well as body fluid components secreted by the intestinal tract, foreign bodies and liquids that enter the intestinal tract for various reasons, and endoscopic Finely divided tumor tissue that has been resected but is not easy to remove directly. In the clinical and research process, to distinguish and obtain the components for these purposes, only rely on effective instrument-assisted separation. The flora in the normal human intestinal tract has been considered a special organ in the human body, and fecal transplantation is considered a special organ transplant. There are about 1,000 to 1,050 species of bacteria in the gut. At presen...

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Problems solved by technology

[0005] Since the development of science, although there have been a few studies on the delivery of fecal suspension or fecal suspension into the gastrointestinal tract through colonoscopy, gastroscope nasogastric tube, jejunal tube, capsules, etc., to achieve fecal microbiota transplantation, There is such a problem in all the extraction methods, because the intestinal tract of the body is basically in an anaerobic environment, that is, most of the fecal bacteria are anaerobic bacteria, and the existing extraction equipment does not provide an anaerobic environment for the fecal bacteria, such as the patent No. CN201310051614, the patent name is: a medical cavity content target component recovery device, which provides the required force for the circulation and filtration of feces suspension through positive pressure injection, negative pressure suction, gravity, etc., such extraction The device is unable to provide an anaerobic environment for fecal bacteria, resulting in the death of most fecal bacteria, making it difficult to ensure the high quality of fecal bacteria samples, which reduces the therapeutic effect of fecal bacteria on certain diseases

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