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Bi-phasic current stimulation system

  • US 3,924,641 A
  • Filed: 08/19/1974
  • Issued: 12/09/1975
  • Est. Priority Date: 08/19/1974
  • Status: Expired due to Term
First Claim
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1. A bi-phasic pulse generator for producing pulses to stimulate living tissue comprising:

  • first and second voltage terminals having voltages of different magnitudes;

    first and second conducting paths connected in parallel between said first and second voltage terminals, each of said first and second conducting paths including first and second switches connected in series, with said first switch being connected electrically closer to said first voltage terminal than said second switch and the intersections of said first and second switches in each of said paths defining output electrodes across which pulse-generator output bi-phasic pulses are produced;

    interconnecting means for connecting said first switch of said first conducting path with said second switch of said second conducting path and said first switch of said second conducting path with said second switch of said first conducting path to respectively close and open said second switches in response to said first switches of opposite paths being opened and closed; and

    , a driving means for alternately driving one of said first switches open and the other closed for a first predetermined time period, and vice versa for a second predetermined time period.

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