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Heart pacemaker wear life model based on frequent properties and life distribution
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Journal of Biomedical Science and Engineering·Volume 03 (2010)·Pages 375–379·Published 28 April 2010·DOI10.4236/jbise.2010.34052
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Abstract
The lifetime of heart pacemaker is important for patient and researcher. To forecast the lifetime of heart pacemakers we must determine its distribution regularity. In this paper, a heart pacemaker wear life model is introduced by using frequency property, and a life distribution is presented. The parametric properties of the density are studied. The moment estimator with negative order is used, which is just the maximum likelihood estimator. A new method of parameter estimate, F estimate of parameter, is proposed. This method is suitable to both truncated samples and complete samples, whether or not the distribution can be transformed into a standard distribution without any parameters.
KeywordsHeart Pacemaker Life DistributionFrequencyNegative Order Moment EstimatorMaximum Likelihood EstimateF Estimate
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