System for detecting position of capsule endoscope in subject

Details System for detecting position of capsule endoscope in subject System for detecting position of capsule endoscope in subject

2008-07-08

2008-07-08

Cheng, Jacqueline (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S101000, C600S117000

Reexamination Certificate

active

07398117

ABSTRACT:
A system includes a device that is swallowed, passes through a subject, and includes a magnetic field generator generating a constant magnetic field; and a position transducer. The position transducer includes a magnetic detector detecting a magnetic filed, a magnetic field extractor extracting the constant magnetic field output from the magnetic field generator by removing a noise magnetic field component from the magnetic field detected by the magnetic detector, and a position processor calculating a position of the device in the subject based on an intensity of the constant magnetic field extracted by the magnetic field extractor.

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