title: A variable pulse-burst electromagnetic generator for electrical stimulation of biological systems.
abstract: A variable frequency-burst type, electromagnetic pulse generator has been developed to optimize the effect of electrical stimulation on bone growth. Using a pair of coils, with 100 turns and 18-gauge wire, the instrument can generate a maximum magnetic field of 300 Gauss. Its pulse repetition frequency can be varied from 10 Hz to 2 KHz and the duty cycle, consisting of several short carrier frequency pulses, can be varied up to 95%. This design also permits the period of the carrier pulse to be changed.
mesh_terms: D000818:Animals; D001846:Bone Development; D002642:Chick Embryo; D002648:Child; D055590:Electromagnetic Phenomena / Q000295:instrumentation* / Q000627:therapeutic use; D005260:Female; D006801:Humans; D010013:Osteogenesis Imperfecta / Q000628:therapy