Pacing pulse compensation
Patent 4903700 Issued on February 27, 1990. Estimated Expiration Date: 
December 13, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 13, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDemand pacer having reduced recovery time Apparatus for physiological stimulation and detection of evoked response Rate responsive pacing using the magnitude of the repolarization gradient of the ventricular gradient Automatic sensitivity control for cardiac pacer Automatic sensitivity control for implantable cardiac pacemakers Patent #: 4768511 InventorsAssigneeApplicationNo. 283609 filed on 12/13/1988US Classes:607/13Reducing output recovery timeExaminersPrimary: Jaworski, Francis J.Assistant: Manuel, George Attorney, Agent or FirmInternational ClassA61N 001/00AbstractA pacemaker which generates a triphasic stimulus; the first and third phases are positive pulses, and the second is the negative stimulus. After-potentials are so low that reliable sensing of evoked signals are possible. The rapidity of the charge balancing is not affected by the stimulus amplitude because the relative amplitudes of the three phases are maintained independent of the stimulus amplitude. | |
