Medical stimulator with multiple operational amplifier output stimulation circuits
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United States of America Patent
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Dec 6, 1994
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N/A
app pub date -
Feb 19, 1993
filing date -
Aug 10, 1990
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Abstract
A cardiac pacemaker or other tissue stimulator including first and second stimulation electrodes mounted adjacent to one another and adjacent the tissue to be stimulated, such as a chamber of a heart, a return electrode and a pulse generator which independently generates two or more stimulation pulses. The pulses are applied between the first stimulation electrode and the return electrode and between the second electrode and the return electrode in an overlapping fashion. By controlling the relative timing and polarity of the pulses, the potential gradient between the electrodes and the rate of change of the potential gradient may be varied.
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