Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1992-01-29
1993-08-24
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
358 81, 378 4, 1286535, G01R 3320
Patent
active
052392651
ABSTRACT:
Detection signals (about several microvolts) of bio-electrical and bio-physical phenomena from a patient are amplified to a prescribed level through a magnetically shielded preamplifier, and displayed as waveforms on the screen of a display device installed at a place free from magnetic effects.
The waveforms are, however, not amplified so much by the preamplifier in order to prevent formation of distortion in the detection signals.
The waveforms displayed on the screen are taken by a video camera, and video signals are picked up from the camera. The video signals are, unlike the feeble detection signals directly obtained from the human body, stable image information, and when they are transmitted again to the place of magnetic resonance CT apparatus (that is, the place exposed to magnetic effects), they are hardly influenced by the magnetism.
The video signals are displayed again as waveforms on a magnetically shielded video display device. Thus, the physician can monitor the results of examination obtained by the detecting apparatus of bio-electrical and bio-physical phenomena of patient, at a position near the patient.
REFERENCES:
patent: 4851900 (1989-07-01), Edwards et al.
patent: 5023895 (1991-06-01), McCroskey et al.
Sugan Company Limited
Tokar Michael J.
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