Screw-type active-thrust capsule-like robot

Abstract

The invention provides a screw-type active-thrust capsule-like robot comprising a front cover, a controlling and sensing device, a battery holder, a battery, a driving motor, an outer shell, a sealing ring, a rear cover, a flexible coupler and a thrust screw. The connection relations of all the components are as follow: the driving motor is sleeved in a front cavity of the outer shell; the battery is in the battery holder, one end of the battery contacts with the driving motor, the other end of the battery contacts with the battery holder; the bottom of the battery holder contacts with the controlling and sensing device; the front cover is sleeved at one end of the outer shell and seals the controlling and sensing device, the batter holder, the battery and the driving motor in the front cavity of the outer shell; the sealing ring is arranged in a rear cavity of the outer shell; the rear cover is in interference fit or threaded fit with the other end of the outer shell and forms the rear cavity with the outer shell; one end of the flexible coupler is tightly sleeved and connected with a motor shaft of the driving motor, and the other end of the flexible coupler is connected with the stem end of the thrust screw. The robot of the invention has excellent motion performance and high driving efficiency, is suitable for flexible and elastic organ wall environments and has reliability and practicability.

Description

technical field [0001] The invention relates to the field of in-vivo medical devices, and more particularly relates to a screw-type actively propelling capsule robot. Background technique [0002] Among the medical devices, the medical endoscope is an important medical equipment developed in modern times for observing the internal tissue structure of the human cavity, the location, size, shape and nature of the lesion. Has been widely used in clinical diagnosis and treatment of various subjects. The wireless capsule endoscope M2A was first successfully developed in 2000 in Given Image, Israel, and applied in clinic. Gastrointestinal imaging examination is completed through oral wireless capsule endoscope, which overcomes the shortcomings of the traditional cable method, such as inability to complete the small intestine examination and damage the inner cavity tissue, and avoids the huge burden of endoscopic examination on the patient. pain. [0003] Current capsule endosco...

AI Technical Summary

Problems solved by technology

However, because the organ wall has viscoelastic properties, the close contact is limited. When the gap between the cylindrical spiral rib and the tube wall is too large, the hydrodynamic film will rupture, the propulsion force will drop sharply, and the propulsion effect will be poor.

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