Patent · US Expired

Demand pacer having reduced recovery time

US4170999A · kind A · utility

23Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 1978
Grant dateOct 16, 1979
Priority date
Expiry dateJun 19, 1998

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61N1/365
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

In a demand pacer, an input amplifier senses stimulating pulses and natural heart beat signals, and responsively thereto establishes control of a subsequent stimulating pulse. Charge accumulation on an output capacitor governs recovery time after each generated stimulating pulse. Respective first and second flip-flops, responsive to the input amplifier and the demand pacing logic, establishes a reduced recovery time, after each generated pulse, wherein charge accumulated on the output capacitor is dissipated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.