Method and apparatus for implementing activity sensing in a pulse generator
December 22, 2009. 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 ReferencesDigital cardiac pacemaker with refractory, reversion and sense reset means Medical device Pacing generator programmer with transmission checking circuit Pacemaker programming apparatus utilizing a computer system with simplified data input Cardiac pacemaker sense amplifier Rate adaptive demand pacemaker Body stimulator output circuit Implantable dynamic pressure transducer system Stroke volume controlled pacer Pacemaker programmer with telemetric functions InventorsAssigneeApplicationNo. 455717 filed on 12/22/1989US Classes:607/22, Chemical substance in blood607/30Remotely changing, (e.g., programming, pacer) parameters or operationExaminersPrimary: Kamm, William E.Assistant: Getzow, Scott M. International ClassA61N 001/365AbstractA cardiac pacemaker system of the type including a sensor responsive to the metabolic demand for oxygen and which varies the pacing rate in response to the output of the sensor. The pacemaker defines a function relating sensor output to pacing rate, based upon independently selectable parameters, including a first rate which may be the lower rate of the pacemaker, a second rate which may also be the upper rate of the pacemaker, and a predetermined activity level. The function defined by the pacemaker varies the pacing rate between the first and second rates, with the second rate being achieved at the selected sensor output. The pacemaker system provides both simplicity and extraordinary flexibility, allowing rate responses to be optimized to the needs of a individual patients.Other References
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