Heart pacemaker wear life model based on frequent properties and life distribution
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.
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.
Cite this paper
nullTong, Q. , Zou, X. , Tang, J. and Tong, H. (2010) Heart pacemaker wear life model based on frequent properties and life distribution. Journal of Biomedical Science and Engineering, 3, 375-379. doi: 10.4236/jbise.2010.34052.
nullTong, Q. , Zou, X. , Tang, J. and Tong, H. (2010) Heart pacemaker wear life model based on frequent properties and life distribution. Journal of Biomedical Science and Engineering, 3, 375-379. doi: 10.4236/jbise.2010.34052.
References
[1] Oham, O.J. and Danilovic, D. (1997) Improvements in pacemaker energy consumption and functional capability: Four decades of progress. Pacing and Clinical Electrophysiology, 20, 2-9. [2] Kindermann, M., Schwaab, B., Berg, M. and Fröhlig, G. (2001) Longevity of dual chamber pacemaker: Device and patient related determiants. Pacing and Clinical Elec- trophysiology, 24(5), 810-815. [3] Markewitz, A., Kronski, D., Kammeyer, A., Kaulbach, H., Weinhold, C., Doering, W. and Reichart, B. (1995) Determinants of dual chamber pulse generators longevity. Pacing and Clinical Electrophysiology, 18(12), 2116- 2120. [4] Crossley, G.H., Jeffrey, A.B., Reynolds, D., William, S., Johnson, W.B., Howard, H. and Lisa, T. (1995) Steroid elution improves the stimulation threshold in an active- fixation atrial permanent pacing lead. Circulation, 92(10), 2935-2939. [5] Rao, C.R. (1997) Linear statistical inference and its applications. Wiley & Sons, New York.
[1] Oham, O.J. and Danilovic, D. (1997) Improvements in pacemaker energy consumption and functional capability: Four decades of progress. Pacing and Clinical Electrophysiology, 20, 2-9. [2] Kindermann, M., Schwaab, B., Berg, M. and Fröhlig, G. (2001) Longevity of dual chamber pacemaker: Device and patient related determiants. Pacing and Clinical Elec- trophysiology, 24(5), 810-815. [3] Markewitz, A., Kronski, D., Kammeyer, A., Kaulbach, H., Weinhold, C., Doering, W. and Reichart, B. (1995) Determinants of dual chamber pulse generators longevity. Pacing and Clinical Electrophysiology, 18(12), 2116- 2120. [4] Crossley, G.H., Jeffrey, A.B., Reynolds, D., William, S., Johnson, W.B., Howard, H. and Lisa, T. (1995) Steroid elution improves the stimulation threshold in an active- fixation atrial permanent pacing lead. Circulation, 92(10), 2935-2939. [5] Rao, C.R. (1997) Linear statistical inference and its applications. Wiley & Sons, New York.