Magnetic control biopsy mechanism of a capsule endoscope

Abstract

The invention provides a magnetic control biopsy mechanism of a capsule endoscope, comprising a fixed base, a stator permanent magnet, a biopsy working head, a mover permanent magnet, a moving base and a protective shell, wherein the fixed base, the stator The permanent magnet, the biopsy working head, the mover permanent magnet and the moving base are all located inside the protective shell, and the fixed base is fixed on the outside of the capsule endoscope. The beneficial effects of the present invention are: the magnetically controlled biopsy mechanism provided by the present invention is externally placed on the surface of the magnetically driven capsule endoscope, has a simple structure, is easy to assemble and disassemble, does not need to change the existing structure, and increases the sampling function; the driving energy is all provided by the external magnetic field It is provided remotely without built-in batteries, reducing damage to the human body; the device can repeatedly perform sampling and biopsy operations by applying an external magnetic field multiple times to improve the success rate of sampling; the biopsy working head protrudes from the axial direction, which increases the sampling range and facilitates The camera located at the head of the capsule cooperates with the external magnetic field to better observe the sampling process.

Description

technical field [0001] The invention relates to a capsule endoscope, in particular to a magnetic control biopsy mechanism of the capsule endoscope. Background technique [0002] Capsule endoscopy is a revolutionary innovation in the inspection of gastrointestinal diseases and the development of endoscopy. Compared with traditional endoscopy, it not only has the characteristics of painless and non-invasive comfortable endoscopy, but also has extremely high inspection accuracy. Its basic feature is to use the micro-camera to wirelessly transmit inspection images to realize functions such as sampling and spraying. Capsule endoscopy with biopsy function is one of the key technologies for the effective application of capsules in clinical practice. [0003] Existing endoscopic capsules with biopsy function can be divided into external control and internal control. The internal control mainly includes shape memory alloy, torsion spring, and micro-clamp drive. These biopsy drive de...

AI Technical Summary

Problems solved by technology

[0003] Existing endoscopic capsules with biopsy function can be divided into external control and internal control. The internal control mainly includes shape memory alloy, torsion spring, and micro-clamp drive. These biopsy drive devices have complex structures, high energy supply requirements, and cannot be repeated. sampling

The external control is mainly a magnetic control method, which is basically integrated in the capsule endoscope as a biopsy module, which occupies a large amount of internal space, is not highly modifiable, and has a small sampling range

These issues hinder the widespread application of sampling modules in the field of capsule endoscopic robotics

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