A self-contained active radial drive device for medical use

Abstract

A self-contained active radial drive device for medical use, comprising: a housing, a shaft body, a pair of mounting seats, at least one pair of radial displacement sensor assemblies, at least one pair of radial magnetic bearing assemblies, and a pair of protective blocks; each pair The two radial displacement sensor assemblies in the radial displacement sensor assembly pair are symmetrically arranged at the left and right ends of the housing, including the sensor stator, sensor probe and detection ring. The sensor probe of the sensor stator and the detection ring form a detection gap ; The two radial magnetic bearing assemblies in each pair of radial magnetic bearing assemblies are symmetrically arranged at both ends of the housing, including radial magnetic bearing stators, coils and radial displacement sensor assemblies. The magnetic bearing rotor, the radial magnetic bearing stator and the radial magnetic bearing rotor form a magnetic gap, and the coil is wound on each magnetic pole of the radial magnetic bearing stator. The whole device can realize the precise suspension in the radial direction of the shaft body and the deflection control in the radial direction.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a medical self-contained active radial drive device, which can be used as a movement mechanism of an endoscope or a microsurgical robot device. Background technique [0002] With the rapid development of medical science and technology, disease diagnosis, monitoring, sampling and clinical surgical treatment in vivo are becoming more and more minimally invasive and non-invasive. Endoscopic peristaltic robots are in increasing demand and higher requirements, especially for the volume, quality and function of this kind of robot. At present, commercial capsule robots, such as capsule endoscopes used to automatically take pictures of the digestive tract, mostly passively follow the peristalsis of the digestive system and cannot control their orientation, and incarceration and retention will occur in narrow and folded areas of the intestine. However, the motion devices using endoscopic...

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a self-contained active radial drive device for medicine, which does not rely on complex external magnetic field drive, to solve the problems of large volume and high power consumption of peristaltic motion devices in existing endoscopic or microsurgical robots. Facilitate precise creep control, with small size and low power consumption

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