Cardiac pacer including controlled voltage multiplier

Details Cardiac pacer including controlled voltage multiplier Cardiac pacer including controlled voltage multiplier

1974-01-02

1977-09-20

Shoop, William M.

Electric power conversion systems

Current conversion

With voltage multiplication means

128419P, H02M 700

Patent

active

040500047

ABSTRACT:
A cardiac pacer including a controlled voltage multiplier adapted for connection to a source of voltage to be multiplied and a plurality of parallel voltage-developing branches each including a capacitor. A pair of output terminals, at least one of which is adapted to be operatively connected to a patient's heart, are connected in series with one of the capacitors whereby the path for current charging that capacitor is through the load connected to the terminals. A corresponding plurality of controlled switches are connected to corresponding ones of the capacitors, and the switches and capacitors are connected together to define a series discharge path including the pair of output terminals when the switches are operated by a trigger pulse generator. Including timing means controlling the generation of pulses for triggering the controlled switches and thereby controlling the stimulating output pulses appearing on the pacer output terminals. The cardiac pacer can include regulating means for limiting the amplitude of the output pulses.

REFERENCES:
patent: 1734917 (1929-11-01), Peek
patent: 2905881 (1959-09-01), Aron
patent: 3435320 (1969-03-01), Lee et al.
patent: 3707974 (1973-01-01), Raddi
patent: 3818304 (1974-06-01), Hursen et al.
"Electronics," pp. 97, 98, Mar. 21, 1966.
"Electronics," p. 104, Mar. 2, 1970.

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