Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1994-10-20
1997-01-14
Arana, Louis M.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324322, 1286535, G01V 300
Patent
active
055943373
ABSTRACT:
An angiographic coil for performing blood flow studies of the large vessels of the legs and lower pelvis employs an alternating series of coil elements having orthogonal sensitivities arrayed along a cover and base surrounding the legs and lower pelvis and supported thereby. The alternating coil pattern provides good isolation between the coils in a coil that allows easy patient positioning. In a second embodiment, structures having conductors pass between the legs when the patient's legs straddle a divider of the coil form. The coil structure is open on sides to permit easy entrance and exit from the coil by the patient. Multiple coils are used to span the length of the elongate imaging area of the legs and a pre-amplifier network is employed to limit the inductance between other coil and to provide for piecewise imaging of the entire leg and pelvis region.
REFERENCES:
patent: 4825162 (1989-04-01), Roemer et al.
patent: 5057777 (1991-10-01), Kurczewski
patent: 5430378 (1995-07-01), Jones
Arana Louis M.
Medical Advances, Inc.
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