Adjustable Magnetic Field Generator for Capsule Endoscope Tracking System

Abstract

An adjustable magnetic field generating device under a capsule endoscope tracking system is connected with a magnetic field sensor module in a capsule in a wireless communication mode. The adjustable magnetic field generating device comprises a magnetic field generating circuit, a time sequence control circuit and a wireless feedback circuit. The output of the time sequence control circuit and the output of the wireless feedback circuit are respectively connected with the magnetic field generating circuit, the time sequence control circuit controls the magnetic field generating circuit to generate an alternating magnetic field in a time division mode, the generated alternating magnetic field is detected and processed through the magnetic field sensor module and is fed back to the magnetic field generating circuit through the wireless feedback circuit, the magnitude of the magnetic field is changed, and the intensity of the magnetic field can be automatically adjusted. The alternating magnetic field with the adjustable magnitude can be provided for the adjustable magnetic field generating device under the capsule endoscope tracking system, the intensity of the magnetic field can be automatically adjusted according to a feedback signal transmitted by a magnetic field sensor, and the tracking precision is improved.

Description

technical field [0001] The invention relates to medical equipment, in particular to an adjustable magnetic field generating device under a capsule endoscope tracking system. Background technique [0002] Capsule endoscopy was successfully developed by Israel's GivenImage Company in 2000, and since it passed the US FDA certification in 2001, it has been more and more widely used in clinical practice. The capsule endoscope enters the digestive tract from the oral cavity, and can clearly take images of the esophagus, stomach, large intestine and small intestine, thereby completing the inspection of the entire digestive system of the human body, especially in the inspection of intestinal diseases, laying an important foundation status. Capsule endoscopy fundamentally overcomes the deficiencies of traditional endoscopy such as gastroscopy and colonoscopy. It not only eliminates the detection blind spot, does not damage the inner cavity tissue, but also avoids the inconvenience c...

AI Technical Summary

Problems solved by technology

Since capsule endoscopy generally takes 5-8 hours to complete the entire digestive tract inspection, these positioning technologies have some disadvantages, such as high cost, complicated operation, easy radiation to the human body, and inability to meet the requirements of long-term real-time positioning, etc.

Images