Medical current limiter

Details Medical current limiter Medical current limiter

1988-02-26

1989-03-07

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

361 91, 361101, 128696, H02H 3087

Patent

active

048111562

ABSTRACT:
The medical current limiting circuit is for use with medical electrodes and associated diagnostic and therapeutic apparatus. The device protects the apparatus and patient from current flow. The device has circuitry comprising a pair of external connectors, a pair of n-type field effect transistors connected in cascade, a resistor, a p-type field effect transistor, a capacitor to latch the p-FET in a non-conductive state upon its initial activation and a diode to prevent capacitor discharge to the current source.

REFERENCES:
patent: 4546401 (1985-10-01), Suederg

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