Controlled impedance monitoring lead wires

Details Controlled impedance monitoring lead wires Controlled impedance monitoring lead wires

1987-12-22

1990-08-28

Smith, Ruth S.

Surgery

Truss

Pad

128696, 128901, A61B 505

Patent

active

049516728

ABSTRACT:
An electrode assembly, particularly useful in nuclear magnetic resonance apparatus, for sensing a physical characteristic of a live study subject includes an electrode positioned in electrical contact with the subject for sensing the physical characteristic. The electrode assembly further includes a lead wire connected at one of its ends to the electrode and having an impedance selected to protect the study subject from heating. The impedance is also selected to have a low voltage coefficient of resistivity in order to prevent conversion of radio-frequency energy to ECG in-band energy.

REFERENCES:
patent: 4280507 (1981-07-01), Rosenberg
patent: 4494552 (1985-01-01), Heath
patent: 4679002 (1987-07-01), Sherwin et al.

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