Swallowing type electronic remote detection continuous tracking and positioning system in capsule based on magnetic marker

Abstract

The invention discloses a continual tracing location system based on ingestion type electronic remote sensing capsule of magnet marker, which comprises the following parts: capsule within magnetic marker, six magnet sensors and external location control device, wherein the external location control device is composed of multi-switch, main controller, power manager, battery group, storage subsystem and external interface mode; six magnet sensors are fixed on the body surface determination position, which connects the power manager and multi-switch; the location system adapts static magnetic field as criterion, which calculates three-dimensional trace through the corresponding function relationship of body magnet field distribution and maker position, which improves the measuring precision.

Description

technical field [0001] The invention relates to a continuous tracking and positioning system of swallowable electronic telemetry capsules based on magnetic markers, belonging to the technical fields of micro-electromechanical systems and biomedical engineering. Background technique [0002] With the development of microelectronics technology, micro-sensing technology, wireless communication technology, and system integration technology, various electronic telemetry capsules that can be swallowed have emerged as the times require. They are in the shape of capsules, which can be easily taken from the mouth, and then run in the body with the normal peristalsis of the digestive tract. Fixed-point release of drugs, living sampling, etc. Compared with traditional medical examination instruments and methods, these systems have the advantages of small size, no damage to the human body, and no pain, and are easily accepted by patients and doctors. Therefore, they have become one of ...

AI Technical Summary

Problems solved by technology

These two positioning methods use the electromagnetic signals emitted by capsules in the body. Since the human body is a very complex electromagnetic structure, the propagation of electromagnetic waves in human tissue is affected by the position, direction, electromagnetic characteristics of the tissue, tissue structure, etc. of the radiation source. Therefore, there is no accurate quantitative correspondence between the electromagnetic field strength at the body surface and the radiation source in the body so far

At the same time, the use of electromagnetic field method positioning involves a large number of calculations of electromagnetic forward and inverse problems, making the system structure extremely complex, while the positioning accuracy and precision are not high, and the maximum positioning error can reach 6cm

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