Pulse electro-magnetic field therapy device with auto bias circu

Details Pulse electro-magnetic field therapy device with auto bias circu Pulse electro-magnetic field therapy device with auto bias circu

1986-03-17

1987-06-23

Cohen, Lee S.

Surgery

Truss

Perineal

128419F, 128423R, A61N 142

Patent

active

046744827

ABSTRACT:
A method of treating animal tissue with a time-varying, magnetic field and a device for producing such a field wherein a substantially unipolar, rectangular electro-magnetic treatment signal having pulses of a predetermined frequency and amplitude is generated. The signal is transmitted to a coil wherein it induces a magnetic flux. The magnetic flux so produced is applied to a treatment site to promote healing of tissue. A biasing circuit is provided in the device to prevent the occurrence of a reverse polarity pulse upon the fall of the magnetic flux induced by the fall of the generated pulse and to diminish high frequency ringing at the beginning of a treatment signal.

REFERENCES:
patent: 3915151 (1975-10-01), Kraus
patent: 4105017 (1978-08-01), Ryaby et al.
patent: 4428366 (1984-01-01), Findl et al.
A. T. Barker, "The Design of a Clinical Electromagnetic Bone Stimulator," Clinical Physical Physiology Measurement.

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