| abstract |
A programmable digital cardiac pacer having a catheter (300) with atrial (302) and ventricular (304) electrodes for sensing heart signals as well as applying the pacing pulses to the heart, slope detectors (101-116, 101A-116A) for analyzing the heart signals, memory (205-213) for storing parameter data and control logic (230-240) run by a dual timing circuit (214-229) for applying pulses to the electrodes (302, 304) in response to the signals from the heart. |