Electromedical apparatus

Details Electromedical apparatus Electromedical apparatus

1980-08-25

1982-12-14

Kamm, William E.

Surgery

Truss

Pad

128908, 328206, A61N 118

Patent

active

043633242

ABSTRACT:
In the case of current stimulation apparatus, in particular, protection installations are necessary which, in every instance, disconnect the patient from the operating voltage of the apparatus when maximally permissible patient currents are exceeded. For this purpose, for example, safety fuses or also electromagnetic disconnection devices (relays) are known. In accordance with the disclosure, a safety circuit for disconnecting the patient output from the operating voltage is employed as the protection installation which also responds when the patient current deviates from a preselected desired value adjusted on an intensity adjustment member. For this purpose, an output stage as current waveform generator for constant-current stimulation current is connected with the safety circuit.

REFERENCES:
patent: 3321645 (1967-05-01), Webb
patent: 3453454 (1969-07-01), Kiesow et al.
patent: 3587563 (1971-06-01), Ragsdale
patent: 3709212 (1973-01-01), Koeblitz
patent: 3886932 (1975-06-01), Suessmilch
patent: 4068669 (1978-01-01), Wiemi
patent: 4088141 (1978-05-01), Niemi
patent: 4200108 (1980-04-01), Weigert

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