Inclined Magnetic Tracking System for Swallowable Electronic Capsules

Abstract

An inclination-type magnetic tracking system of a swallowing electronic capsule, including a magnetic field generator arranged outside the body, a wireless data transceiver module and a data processing platform, and an inclination-type wireless magnetic sensing module arranged on the ingestion-type electronic capsule; the inclination-type The wireless magnetic sensing module is connected to the wireless data transceiver module through wireless communication, and the wireless data transceiver module is respectively connected to the magnetic field generator and the data processing platform. The invention adopts the method of combining inclination angle sensing and magnetic field sensing, and can realize multi-degree-of-freedom azimuth tracking by using only a single excitation coil, which reduces the volume and power consumption of the magnetic field generator in the tracking system, and shortens the tracking algorithm time. The solution time reduces the sampling data amount and sampling time of each round of tracking, and improves the tracking accuracy.

Description

technical field [0001] The invention relates to a medical device, in particular to an inclination magnetic tracking system for tracking the orientation of a swallowing electronic capsule in a body. Background technique [0002] Swallowable electronic capsules can be taken orally into the digestive tract, and the images in the digestive tract can be transmitted wirelessly to the outside of the body through the micro-camera system carried by it, or the multiple sensors in the capsule can be used to detect and collect multiple information in the gastrointestinal tract. The institution takes a sample biopsy of the local tissue. However, doctors cannot know the location of the swallowable electronic capsule in the body, so they cannot match the diagnosis information with specific parts, and they cannot accurately drive the capsule to move according to its orientation. [0003] At present, many scientific researchers have made a lot of research results on the tracking and positio...

AI Technical Summary

Problems solved by technology

[0004] Because the low-frequency noise of electronic components and the geomagnetic field signal are difficult to filter out in the magnetostatic signal, and the orientation is only determined by magnetic field detection, the number of unknowns in the magnetic field inverse problem is large and the solution is complicated

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