Spiral fixed-point operation mechanism for intestinal tract

Abstract

The invention discloses a spiral fixed-point operation mechanims for an intestinal tract. The spiral fixed-point operation mechanism comprises a shell, a magnetic control driving mechanism, a planetary gear train and a rotating frame, the magnetic control driving mechanism, the planetary gear train and the rotating frame are all arranged in the shell, the planetary gear train comprises a sun gear and two planetary gears with the circumferential angle difference of 180 degrees, the sun gear is in driving connection with the magnetic control driving mechanism, and the planetary gears are meshed with a gear ring in the shell; the planet wheel is coaxially connected with a threaded sleeve, the threaded sleeve is movably connected with the corresponding planet tube of the rotating frame in a sleeving mode, a replaceable medicine pushing piston or a sampling needle tube is arranged on a threaded rod in threaded connection with the threaded sleeve, and the threaded sleeve rotates to drive the medicine pushing piston or the sampling needle tube to do linear motion along the corresponding planet tube. The top face of the planet pipe is attached to the inner plane of the top cover, an opening is formed in the top cover, the planet pipe can be communicated with the outside through the opening, and the thread directions of the two thread sleeves are opposite. According to the mechanism, the function of taking in the body at a time and simultaneously completing double-target drug application or sampling or combined use of drug application and sampling is achieved, the function is powerful, and the structure is simple and easy to control.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a screw-type fixed-point operating mechanism for intestinal tract. Background technique [0002] my country has a vast territory and a large population. With the improvement of living standards and the aggravation of population aging, the requirements for surgical quality have been significantly increased. Intestinal disease is a high-incidence disease in humans, and the global prevalence of celiac disease alone has reached 1%. (ie 70,000,000 patients). Intestinal diseases, especially those in the small intestine and colon, have brought great harm to public safety. In recent years, the incidence of intestinal cancer has increased, and the mortality rate ranks third among the causes of cancer death. Endoscopes (colonoscopes) with flexible cables are usually used for intestinal disease inspection or biopsy. At present, colonoscopy is the main means of intestinal disease ...

AI Technical Summary

Problems solved by technology

At present, the research on capsule robots with biopsy or drug delivery functions is focused on single-target biopsy or drug delivery functions, and cannot achieve multi-target biopsy or drug delivery functions.

Moreover, the functions of drug application and biopsy are not integrated, and most of the existing design structures are relatively complicated and difficult to control

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