Motion Control Device for Capsule Endoscopy

Abstract

The invention discloses a motion control device for a capsule endoscopy. A bearing seat is arranged on a base. The rear end of the bearing seat is connected with the base through two first bolts which are arranged side by side with one on the left and the other on the right. Spherical washer components are arranged between the head of each first bolt and the bearing seat, and between the bearing seat and the base. Compression springs are arranged on the left side and the right side of the front end of the bearing seat respectively. A driving shaft penetrates through the bearing seat in a rotary mode. The rear end of the driving shaft is connected with an output shaft of a motor. The front end of the driving shaft is sleeved with a friction wheel. The inner wall of a housing is pressed by the friction wheel. An annular magnet is fixedly arranged in the housing. Multiple coil holders which are evenly distributed in the circumferential direction are arranged in the magnet. A coil is arranged on each coil holder. The intensity and distribution of the magnetic field in the magnet are changed by controlling the current change of the electromagnetic coils, so that the stress magnitude and direction of the capsule endoscopy in the whole plane are controlled. The magnet can rotate, resulting in rotation of the magnetic field, so that the capsule endoscopy can move in the whole plane in a controllable mode.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and in particular relates to a motion control device for a capsule endoscope. Background technique [0002] Capsule endoscopy, as an effective method for diagnosing intestinal diseases, has been extensively studied and developed rapidly for many years. From the current point of view, its research and development are no longer limited to intestinal diagnosis. [0003] In terms of controllability, capsule endoscopy can be divided into passive type and active type. The traditional capsule endoscope is passive type, and its movement in the intestinal tract only depends on the intestinal peristalsis of the human body, and the movement state of the capsule endoscope cannot be controlled. Effective control, so it can only be adapted to the examination of the small intestine. The active type is also divided into internal drive and external drive, and the external drive is the majority. The m...

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Problems solved by technology

However, the theoretical controllability is also realized at or below the liquid level, so the subject must be allowed to drink a large amount of clear water and change his posture (lying flat, lying on his side, lying on his stomach). control and other factors, increasing the possibility of missed detection

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