Surgery – Truss – Pad
Patent
1993-06-15
1996-06-18
Smith, Ruth S.
Surgery
Truss
Pad
324244, 324248, A61B 505
Patent
active
055268110
ABSTRACT:
An apparatus and process for making biomagnetic measurements of a biological organism permits the internal sources of the activity to be identified. An array of dipole sources is identified by providing a plurality of biomagnetic sensors disposed at locations external to the biological organism, measuring a measured biomagnetic response at each of the sensors, and amplifying and filtering the measured biomagnetic response. A solution of dipole sources within the biological organism is determined by forward calculating a computed biomagnetic response at each of the sensors resulting from the biomagnetic activity of a plurality of dipole sources, each of which dipole sources contributes a normalized total signal strength at the sensors, and solving for the strengths of each of the dipole sources by a minimum norm estimation procedure. Convergence on the solution is aided by iteratively removing from the determination those apparent sources that contribute only a small portion of the signal strength, and then resolving the resulting relationship.
REFERENCES:
patent: 4977896 (1990-12-01), Robinson et al.
patent: 5136242 (1992-08-01), Abraham-Fuchs
patent: 5170119 (1992-12-01), Sekihara et al.
patent: 5228443 (1993-07-01), Tatar
Biomagnetic Technologies, Inc.
Garmong Gregory
Smith Ruth S.
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