Apparatus for creating therapeutic charge transfer in tissue

Details Apparatus for creating therapeutic charge transfer in tissue Apparatus for creating therapeutic charge transfer in tissue

2007-10-30

2007-10-30

Marmor, II, Charles A. (Department: 3735)

Surgery

Magnetic field applied to body for therapy

Reexamination Certificate

active

10801168

ABSTRACT:
An apparatus for creating therapeutic charge transfer in tissue includes a coil. The coil generates a changing magnetic field to induct an electric field in the tissue exceeding 10 mV/cm when the coil is 5 cm from the tissue. Preferably, the magnetic field has a growth phase and a decay phase and a duration of the growth phase is at least ten times a duration of the decay phase. The apparatus can include a control circuit to control a current fed to the coil. The control circuit includes two subcircuits and a switch for switching between a first of the subcircuits and a second of the subcircuits; preferably, a λ of the second subcircuit is at least ten times a λ of the first subcircuit. To generate the therapeutic effect, the coil should have a duty cycle of at least ten percent.

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