In Vivo Long Term Evaluation of Transcutaneous Energy Transmission for Tatally Implantable Artifitial Heart

Kakuta, Yukihide; Tatsumi, Eisuke; Taenaka, Yoshiyuki; Uesho, K.; Homma, Akihiko; Nakamura, Masanao; Masuzawa, Toru; Shiba, K.; Koshiji, K.

doi:10.1097/00002480-200003000-00078

Cited by 2 publications

(1 citation statement)

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“…High power up to 150 W has been transmitted in laboratory animals and no apparent negative effects have been observed in live tissue (Ghahary and Cho 1992). Kakuta et al (2000) developed a transcutaneous energy transmission (TET) system transmitting more than 20 W power and evaluated in vivo in the long term. Some researchers employed a parallel resonant circuit on the receiving side (Sato et al 2004, Catrysse et al 2004; some employed a serial resonant circuit (Ghahary andCho 1992, Vandevoorde andPuers 2001).…”

Section: Introductionmentioning

confidence: 99%

Power transmission for gastrointestinal microsystems using inductive coupling

Yan

2007

Physiol. Meas.

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Much research on the development of a robotic capsule and microrobot for the diagnosis of gastrointestinal diseases has been carried out. The powering of these microsystems is becoming very important as the implementation of such systems is becoming more feasible by advances in relevant technologies. A wireless power transmission system employing two coils, based on inductive coupling, is discussed in this note. The coupling coefficient between the two coils was measured on axial, lateral and pitch misalignment. The power transmission efficiency was deduced and optimized by selecting proper tuning capacitors and transmission frequency. A serial resonant circuit (SRC) on a receiving side is more adaptive by comparison with parallel resonant circuit (PRC) topology. A multi-receiving coil structure was proposed and examined in an attempt to resolve the orientation indetermination problem of a receiving coil. Experiments show that a dc power level up to 170 mW, with an efficiency of 1.3%, could be steadily received when the receiving coil was placed at the center of the transmitting coil, which can meet the requirement for electric power of some microsystems.

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