Medicine film feeding device

Abstract

A medicine film feeding device comprises a gastroscope tube, a transparent cap, an elastic film, a medicine film and an operating rod; the transparent cap adopts a structure taking the shape of a hollow cylindrical post, wherein a small end is mounted at the front end of the gastroscope tube, the end surface of a large end is an inclined surface, two communicated U-shaped grooves are formed on a tube wall and at the positions close to the top of the inclined surface, and two horizontal strut beams are arranged on the inner tube wall and at the position close to the U-shaped grooves; the elastic film is rectangular, a filiform crevice is formed at each of the four corners of the elastic film, two projections are arranged on the back side of the elastic film, and fixing holes are formed on the projections; the medicine film is rectangular, is slightly smaller than the elastic film, and is applied on the working face of the elastic film, and the four corners of the elastic films are inserted in the filiform crevices at the four corners of the elastic film respectively; after the medicine film is applied on the elastic film, the elastic film is folded inwards into the shape of a rectangle and then is inserted in the U-shaped grooves at the large end of the transparent cap; the fixing holes on the projections on the back side of the elastic film are mounted on the horizontal strut beams of the transparent cap; the operating rod is mounted in the gastroscope tube and can extend out from a biopsy opening of a gastroscope to push out the elastic film and the medicine film which are folded in the U-shaped grooves. The medicine film feeding device is compact in structure and low in cost and is favorable for clinical popularization and application.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a device for sending a medicine film into a hollow viscera of a human body. Background technique [0002] Under the guidance of various medical endoscopic techniques, many hollow organ lesions can be observed, biopsied and treated with minimally invasive surgery under direct vision of the endoscope. However, for the focal lesions that cannot be cured, although the drug can be sprayed through the endoscope, due to factors such as the peristalsis of the hollow viscera, the drug cannot continue to act on the lesion area, so a drug film that can absorb the drug was invented. The drug film is a kind of soft, light, and good hydrophilic paper-like film, which can be continuously pasted on the surface of the lesion with moisture, so that the adsorbed drug can be continuously released and directly act on the lesion, which is conducive to the rapid healing of the lesion and red...

AI Technical Summary

Problems solved by technology

However, for the focal lesions that cannot be cured, although the drug can be sprayed through the endoscope, due to factors such as the peristalsis of the hollow viscera, the drug cannot continue to act on the lesion area, so a drug film that can absorb the drug was invented. The drug film is a kind of soft, light, and good hydrophilic paper-like film, which can be continuously pasted on the surface of the lesion with moisture, so that the adsorbed drug can be continuously released and directly act on the lesion, which is conducive to the rapid healing of the lesion and reduces the need for medication. Dosage and Side Effects

[0003] Because the openings of human hollow organs connected to the outside of the body are often narrow, and the drug film is soft, light, and hydrophilic. Contact and soaked with water will cause the drug film to stick to each other and form a mass, which cannot be unfolded when it reaches the lesion, and cannot effectively cover the lesion surface, so the therapeutic effect cannot be achieved

[0004] In order to prevent the drug film from being soaked by water and making it unusable, the current method is to wrap the drug film around the front end of the endoscope snare and introduce it through the biopsy hole. Although this can reduce the chance of contact between the drug film and the mucus on the mucosal surface, it prevents the drug film from being used. The membrane sticks into a mass, but because the biopsy hole of the endoscope is small, the area of ​​the drug membrane introduced each time is very small (less than 2.0X2.0cm 2 ), which affects the use effect; another shortcoming is that after reaching the lesion, the snare must be opened first to make the drug film unfold. The surface can also adhere to the snare, which cannot be effectively deployed and detached, thus affecting the use effect

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