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VEMANA INSTITUTE OF TECHNOLOGY DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGKORAMANGALA , BANGALORE-5600342015

ENERGY TRANSMISSION SYSTEM FOR ARTIFICIAL HEART BY: Revathi .A USN NO: 1VI11EC063

GUIDE: JAYANTHI CHANDRASHEKAR2DEPT OF ECE, VITIntroductionArtificial HeartEnergy Transference SchemeRechargeable external batteryLeft ventrical assist deviceControl of the systemAdvantageDisadvantageConclusionReferenceContents

ENERGY TRANSMISSION FOR ARTIFICIAL HEARTDEPT:ECE VEMANA INSTITUTE OF TECHNOLGY23DEPT OF ECE, VITIntroduction The heart transplant is very effective as a medical treatment means for the patients who have serious heart problem. The heart transplant is premised on a donor's brain dying, and is remarkably insufficient in number of the donors. Utilization of the artificial heart will solve the problem that the donor is insufficient. When an artificial heart system is put in practical use, there are some problems to be solved. One of the problems is for energy supply to drive an artificial heart actuator. Energy is most simply supplied by using a cable through a hole made in the skin.

Artificial HeartMechanical heart which completely substitutes the natural heart anatomically and physiologicallyExtra pumping chamber that can pump blood throughout the bodyMade up of metal and plasticHas major parts Rechargeable batteryPump actuatorBlood handling parts4DEPT OF ECE, VIT

Image of the artificial heart and human heart5DEPT OF ECE,VITEnergy Transference Scheme6DEPT O F ECE, VIT The TET system allows the noninvasive transmission of energy to the inside of the body. Figure1displays a block diagram of the TET system. Transcutaneous energy transmission (TET) system is the most promising way transmitting the driving energy without invasion. TET system uses electromagnetic induction between the external coil (primary) and the internal coil (secondary). The AC electric power is transmitted to the inside of the body through the transcutaneous transformer, as shown in Figure2. 7DEPT OF ECE, VIT

Figure 1:Block diagram of TET system.8DEPT OF ECE ,VIT

Figure 2:Transcutaneous transformer.9DEPT OF ECE,VIT The Lithium ion battery (CGR18650A) was adopted for an external power supply because of high energy density, high output power and ten cells in series connection were used in battery packEXTERNAL RECHARGEABLE BATTERY The completely-charged rechargeable battery can supply a power of 44.5W. 10DEPT OF ECE,VIT The maximum power transmittable through the ECTETS driven by the external lithium ion battery was measured. Next, the artificial heart actuator ( rate of systole and diastole: 50-percent, right rotation: 700-rpm, left rotation: 700-rpm) was driven by the electric power supplied by the external rechargeable battery through the ECTETS.

The rechargeable battery can drive the artificial heart actuator through the ECTETS for 4-hours .the time that the external rechargeable battery can drive the artificial heart is almost proportional to the weight of the battery.11DEPT OF ECE,VIT

EXTERNAL RECHARGEABLE BATTERY

12DEPT OF ECE,VITLEFT VENTRICAL ASSIT DEVICEControl of the System

13DEPT OF ECE,VIT14DEPT OF ECE,VIT

TOTALY REPLACED ARTIFICIAL HEART Advantages of the artificial heart are that it is readily available and there is no need for immunosuppressive drugs

The artificial heart restores hemodynamic stability, raising blood pressure and helping vital organs recover, as much as possible, in preparation for a heart transplant.ADVANTAGES15DEPT OF ECE,VIT The artificial heart is not without risk, and those risks include failure of the electrical motor, infection, and the need to take blood thinners to prevent clotting.Stroke and bleeding are also possible complications with the artificial heart.

DISADVANTAGES16DEPT OF ECE,VITConclusion17DEPT OF ECE,VIT This evaluated the operating characteristics of the ECTETS driven by the rechargeable battery for the patients to go out or move freely. As a result, the ECTETS driven by ten cells of lithium ion battery in series connection was able to transmit the maximum output power of 44.5-watt. The ECTETS driven by 430-g battery pack in series connection was able to drive the artificial heart actuator for 4- hours. Reference18DEPT OF ECE,VITY. Yokoyama, O. Kawaguchi, T. Shinshi, U. Steinseifer, and S. Takatani, A new pulse duplicator with a passive fill ventricle for analysis of cardiac dynamics,Journal of Artificial Organs, vol. 13, no. 4, pp. 189196, 2010.View at PublisherView at Google ScholarView at PubMedView at ScopusK. Nawata, T. Nishimura, S. Kyo et al., Outcomes of midterm circulatory support by left ventricular assist device implantation with descending aortic anastomosis,Journal of Artificial Organs, vol. 13, no. 4, pp. 197201, 2010.View at PublisherView at Google ScholarView at PubMedView at Scopus