MSA  Vol.5 No.5 , April 2014
Piezoelectric Ceramic Controlled with Platinum Implant as New Isolator in ECG
ABSTRACT

Recently, a new PLZT bulk single plate, called ceramic-controlled piezoelectric with two Platinum wires (CCP2) has been produced; this CCP2 has two (250 μm of diameter and 1 cm long) Platinum-wire implants. This unconventional isolation device for use with diagnostic ECG devices provides high common mode rejection and low leakage current using piezo isolator based on two Platinum wires implanted Lead Lanthanum Zirconate Titanate bulk ceramic. These isolation was validated using four experimental setups; one of them determine that ceramic-controlled piezoelectric with two Platinum wires (CCP2) support up to 6 kV DC before it cracks (short cut). The second experimental setup determined high resistance about 3.9 × 109 Ω and 1.8 × 109 Ω measured on lateral sides and among Platinum wires of CCP2 respectively. The third experimental setup was to obtain the current leakage from CCP2 and it was 6 nA. The fourth experimental setup was to obtain frequency response that was the maximum up to 2.2 MHz and was a pass band filter. Finally the CCP2 was applied as new isolator in a ECG circuit, where bioelectrical ECG signal is modulating at 16 KHz using the piezoelectric effect obtaining excellent results.


Cite this paper
Suaste-Gómez, E. , Morán, C. , Terán-Jiménez, O. and Reyes-Cruz, H. (2014) Piezoelectric Ceramic Controlled with Platinum Implant as New Isolator in ECG. Materials Sciences and Applications, 5, 338-346. doi: 10.4236/msa.2014.55039.
References
[1]   Santos-Trigo, M., Suaste, E. and Figuerola, P. (2014) Technology and Tools Appropriation in Medical Practices. Encyclopedia of Information Science and Technology. 3rd Edition, IGI-Global, United Sates, in press.

[2]   Haertling, G.H. and Land, C.E. (1971) Hot-Pressed (Pb, La)(Zr, Ti)O3 Ferroelectric Ceramics for Electrooptic Applications. Journal of the American Ceramic Society, 54, 1.
http://dx.doi.org/10.1111/j.1151-2916.1970.tb12105.x-i1

[3]   Suaste, E. and Flores, A. (2008) Behavior of the Temperature Dependence of Dielectric Constants and Curie Temperature Pt-Implanted Modified BaTiO3, KNbO3, PbZrO3,Pb0.88Ln0.08Ti0.98Mn0.02O3 (LN = La, Eu) Ceramics. Proc. XVII IMRC and VII Congress of NACE Int., Can-Cun, México, 17-20 August 2008 (S7-P1).

[4]   Touloukian, Y.S., Powell, R.W., Ho, C.Y. and Klemens, P.G. (1970) Thermophysical Properties of Matter. Vol. 1. Thermal Conductivity: Metallic Elements and Alloys. IFI/Plenum Press, New York.

[5]   Gonzalez-Moran, C.O. and Suaste-Gomez, E. (2009) Developed and Experimental Evidence of a Ceramic-Controlled Piezoelectric Bulk Implanted with Pt Wire Based on PLZT. Ferroelectrics, 392, 98-106.
http://dx.doi.org/10.1080/00150190903412564

[6]   Herbert, J.M. (1982) Ferroelectric Transducers and Sensors. Gordon and Breach, New York.

[7]   Webster, J.G. (2014) Measurement, Instrumentation, and Sensors Handbook. 2nd Edition, CRC Press, Boca Raton.

[8]   González-Morán, C.O., Flores-Cuautle, J.J.A. and Suaste-Gómez, E. (2010) A Piezoelectric Plethysmograph Sensor Based on a Pt Wire Implanted Lead Lanthanum Zirconate Titanate Bulk Ceramic. Sensors, 10, 7146-7156.
http://dx.doi.org/10.3390/s100807146

[9]   Suaste-Gómez, E., Flores-Cuautle, J.J.A. and González-Morán, C.O. (2010) Opacity Sensor Based on Photovoltaic Effect of Ferroelectric PLZT Ceramic with Pt Wire Implant. Sensors Journal, IEEE, 10, 1056-1060.
http://dx.doi.org/10.1109/JSEN.2010.2042953

[10]   Suaste Gómez, E., Flores Cuautle, J.J.A. and González Morán, C.O. (2011) Development of a Ceramic-Controlled Piezoelectric of Single Disc for Biomedical Applications. In: Laskovski, A.N., Ed., Biomedical Engineering, Trends in Materials Science, InTech, Rijeka, 87-100. http://dx.doi.org/10.5772/13072

[11]   González-Morán, C.O., Cruz-Orea, A., Flores-Cuautle, J.J.A., Minor-Martínez, A. Elias-Vinas, D. and Suaste-Gómez, E. (2011) Ceramic-Controlled Piezoelectric Bulk Implanted with Pt Wire Based on BaTiO3 (Optocal Microscopy, SEM, EDS) and PLZT (Optical Bi-Dimensional Characterization). Ferroelectrics, 423, 111-115.
http://dx.doi.org/10.1080/00150193.2011.620888

[12]   IEC 60601-2-25 (1993-03) (1993) Medical Electrical Equipment—Part 2: Particular Requeriments for Safety of Electrocardiographs.

[13]   Ganong, W.F. (2012) Review of Medical Physiology. McGraw-Hill, New York.

[14]   Guyton and Hall (2011) Medical Physiology. Elseiver, Amsterdam.

[15]   Khandpur, R.S. (2003) Handbook of Biomedical Instrumentation. McGraw-Hill, Tata.

[16]   Geselowitz, D.B., et al. (1980) Electrical Safety Standards for Electrocardiographic Apparatus. Journal of the American Heart Association, 61, 669-670.

[17]   Weinberg, D.I., Artley, J.L., Whalen, R.E. and McIntosh, H.D. (1962) Electric Shock Hazards in Cardiac Catheterization. Circulation Research, 11, 1004-1009. http://dx.doi.org/10.1161/01.RES.11.6.1004

[18]   Whalen, R.E., Starmer, C.F. and Mclntosh, H.D. (1964) Electrical Hazards Associated with Cardiac Pacemaking. Annals of the New York Academy of Sciences, 111, 922-931.
http://dx.doi.org/10.1111/j.1749-6632.1964.tb53162.x

[19]   Roy, O.Z., Park, G.C. and Scott, J.R. (1976) Ventricular Fibrillation Thresholds versus Duration of Current Flow or the Number of 60 Hz Cycles. International Conference of the IEEE Engineering in Medicine and Biology, IEEE, New York, 394-395.

[20]   Roy, O.Z., Scott, J.R. and Park, G.C. (1976) 60 Hz Ventricular Fibrillation and Pump Failure Thresholds versus Electrode Area. IEEE Transactions on Biomedical Engineering, BME-23, 45-48.
http://dx.doi.org/10.1109/TBME.1976.324614

[21]   Rao, C.R. and Guha, S.K. (2000) Principles of Medical Electronics and Biomedical Instrumentation. Universities Press, New Dheli.

[22]   Yoneda, S. and Fukui, Y. (1980) A New Bilateral Optoisolator Circuit. IEEE Transactions on Components, Hybrids, and Manufacturing Technology, CHMT-3, 266-280.

 
 
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