Rectal administration device

Abstract

The invention provides a rectal administration device. The rectal administration device comprises a rod-shaped part with a top end and a bottom end, an auxiliary part and a medicine channel for conveying medicines, wherein the medicine channel is provided with at least one medicine inlet and at least one medicine outlet; the auxiliary part is adaptively matched on the rod-shaped part; the hardness of a material of the auxiliary part which at least enters a rectum is lower than that of the rod-shaped part; the auxiliary part is provided with a pit capable of containing the medicines and/or excrement substances; and the pit is provided with at least one opening.

Description

technical field [0001] The invention relates to a rectal drug delivery device and belongs to the technical field of medical instruments. Background technique [0002] Rectal administration of lubricating, stimulant drugs is a common means of coping with constipation; one of the most typical rectal delivery devices is Kaiselu. The traditional Kaisailu consists of a medicine storage bottle and a drug injection tube connected with the medicine storage bottle. When in use, insert the medicine injection tube into the rectum through the anus of the human body, squeeze the medicine storage bottle, and the medicine enters the rectum through the opening of the injection tube and softens. Stool, lubricates the rectal wall, stimulates the mucous membrane and induces the defecation reflex. [0003] The anal sinus at the end of the human rectum is located on the dentate line, also known as the anal recess, which opens upwards in a funnel shape, and usually has 6 to 8. There are anal gla...

AI Technical Summary

Problems solved by technology

[0003] The anal sinus at the end of the human rectum is located on the dentate line, also known as the anal recess, which opens upwards in a funnel shape, and usually has 6 to 8. There are anal glands inside the anal sinus, and the secretion of the anal glands can lubricate defecation. When the depression of the anal sinus is opened, the inner wall of the anal sinus is in contact with feces. Increased friction between feces and the wall of the anal canal affects the smooth discharge of feces, and the anatomical characteristics of the anal sinus make it easy for feces and foreign bodies to accumulate in it. Once infected by bacteria, the inflammatory substances are difficult to drain smoothly. Inflammation of the anal sinus often stimulates the anal sphincter , cause spasm, induce constipation and can lead to local ischemia. If the traditional Kaisailu injection tube does not fully lubricate the anal canal wall and its internal structure, the defecation effect is poor. When feces accumulate in the anal sinus, it can cause Anal gland secretions are not excreted smoothly, and bacteria proliferate in large numbers, becoming the main infection focus of anorectal surgery diseases, and has a certain relationship with the occurrence of anorectal cancer; secondly, due to the many folds of the rectal wall, the traditional injection tube It can only deliver the drug into the rectum, but it cannot spread the drug evenly on the rectal wall, so the area where the drug lubricates the rectal wall is very limited, resulting in poor lubrication to the rectal wall, especially for patients with intractable constipation. In addition, for constipation caused by mental stress, too little activity, etc., the anorectum can be stimulated by expansion to promote defecation. The traditional Kaisailu drug injection tube is a smooth tube with no obvious change in inner diameter, which is not enough to exert an effect on the expansion of the anorectal wall. Stimulation; For patients with diarrhea, the thin and soft feces retained in the rectal mucosa and anal sinus are not easy to discharge, and the bacteria, viruses, parasites, etc. in them are more likely to cause inflammation and stimulation, resulting in excessive bacterial reproduction, intestinal transport function defects, Intestinal motility disorder, accompanied by tenesmus, abdominal pain and other symptoms, the smooth thin tube of traditional Kaiselu into the rectum cannot effectively remove the retained feces, etc. from the body

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