Compact biomedical pulsed signal generator for bone tissue stimu

Details Compact biomedical pulsed signal generator for bone tissue stimu Compact biomedical pulsed signal generator for bone tissue stimu

1991-07-10

1993-06-08

Howell, Kyle L.

Surgery

Truss

Pad

128421, 128422, A61N 136

Patent

active

052170098

ABSTRACT:
An apparatus for stimulating bone tissue for stimulating bone growth or treating osteoporosis by applying directly to the skin of the patient an alternating current electrical signal comprising wave forms known to simulate the piezoelectric constituents in bone. The apparatus may, by moving a switch, stimulate bone growth or treat osteoporosis, as desired. Based on low-power CMOS technology and enclosed in a moisture-resistant case shaped to fit comfortably, two astable multivibrators produce the desired waveforms. The amplitude, pulse width and pulse frequency, and the subpulse width and subpulse frequency of the waveforms are adjustable. The apparatus, preferably powered by a standard 9-volt battery, includes signal amplitude sensors and warning signals indicate an output is being produced and the battery needs to be replaced.

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