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专利名称：OPTIMIZATION FOR RATE RESPONSIVE
CARDIAC PACEMAKER
发明人：TOMMY D BENNETT,LUCY D
NICHOLS,GLENN M. ROLINE,DAVID L.THOMPSON
申请号：AU8622391申请日：19910813公开号：AU8622391A公开日：19920317
摘要：A rate responsive cardiac pacemaker for providing an optimized pacing rate ofstimulation pulses as a function of at least one selected rate control parameter. Eachrate control parameter has a value which varies as a function of changes in a patient'sphysiologic demand and includes a sensor system for sensing the rate control parametervalue and for providing a sensor output representative thereof. The cardiac pacemakeralso includes control circuitry which includes a rate response defining means for derivingdesired pacing rates as a function of the sensor output and an achievement monitoringmeans that has a predetermined achievement criterion, for monitoring the relationshipbetween the derived pacing rates and the achievement criterion over an optimizationperiod. An output circuitry provides optimized pacing rates as a function of the desiredpacing rates, such optimization being accomplished by adjusting the rate responsefunction for each sensor as a function of of the monitored achievement relationship.Another optimization function is provided by adjusting a sensor weighting value whichweights or regulates the relative contribution each sensor's derived desired pacing rates
will contribute toward the pacemaker-derived optimized pacing rates, such sensorweighting value being adjusted as a function of the monitored achievement relationshp,or as a function of the sensor gain optimization activity, as desired.
申请人：MEDTRONIC, INC.
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