Abstract
| Language | English |
|---|---|
| Title of host publication | IFMBE Proceedings |
| Subtitle of host publication | World Congress on Medical Physics and Biomedical Engineering |
| Place of Publication | Singapore |
| Chapter | 175 |
| Pages | 945 - 950 |
| Number of pages | 6 |
| Volume | 68/2 |
| ISBN (Electronic) | 978-981-10-9038-7 |
| Publication status | Published - 30 May 2018 |
| Event | World Congress on Medical Physics and Biomedical Engineering: IUPESM-2018 - Prague Conference Centre, Prague, Czech Republic Duration: 3 Jun 2018 → 8 Jun 2018 |
Conference
| Conference | World Congress on Medical Physics and Biomedical Engineering |
|---|---|
| Abbreviated title | WC-2018 |
| Country | Czech Republic |
| City | Prague |
| Period | 3/06/18 → 8/06/18 |
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Keywords
- Transcutaneous energy transfer
- TWESMI Technology
- pulsed RF transmission waveform
- chronic cardiac failure
- ventricular assist device
- LVAD
- heart transplant
- tissue temperature stability
- medical implants
Cite this
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Pulsed transmission waveform to mitigate tissue thermal effects in transcutaneous wireless energy supply systems for high-power rated medical implants. / Escalona, OJ; Waterman, Niall; McLaughlin, James; McEneaney, David.
IFMBE Proceedings: World Congress on Medical Physics and Biomedical Engineering. Vol. 68/2 Singapore, 2018. p. 945 - 950 606.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Pulsed transmission waveform to mitigate tissue thermal effects in transcutaneous wireless energy supply systems for high-power rated medical implants
AU - Escalona, OJ
AU - Waterman, Niall
AU - McLaughlin, James
AU - McEneaney, David
PY - 2018/5/30
Y1 - 2018/5/30
N2 - Therapeutic options in end stage heart failure include cardiac transplantation or mechanical circulatory support: Left Ventricular Assist Device (LVAD) or Total Artificial Heart (TAH). These devices have relatively high power requirements (5-80W). Existing power supplies to LVAD and TAH are via percutaneous drivelines with a high frequency of complications including infection. We have developed a wireless Transcutaneous Energy Transmission (TET) waveform protocol and system technology which address the major clinical drawbacks of existing systems: skin tissue thermal effect and system durability. Conventional single-channel TET solutions have significant limitations, including inefficient energy transfer characteristics and high energy density levels producing tissue thermal effects. A reduced lifetime of the internal rechargeable battery is an additional drawback. In the proposed novel system, a multi-channel, time-space multiplexed and pulsed RF transmission waveform transcutaneous power delivery approach, is presented for sustained internal energy supply to high-power rated implantable devices. The bench system prototype performance evaluation results, revealed excellent high-energy transfer efficiency and safer management of lower energy density levels. In conclusion, the proposed pulsed transmission waveform protocol and multi-channel concepts can be configured for individual high-power rated LVAD devices to effectively mitigate tissue thermal effects and to prolong backup battery lifetime.
AB - Therapeutic options in end stage heart failure include cardiac transplantation or mechanical circulatory support: Left Ventricular Assist Device (LVAD) or Total Artificial Heart (TAH). These devices have relatively high power requirements (5-80W). Existing power supplies to LVAD and TAH are via percutaneous drivelines with a high frequency of complications including infection. We have developed a wireless Transcutaneous Energy Transmission (TET) waveform protocol and system technology which address the major clinical drawbacks of existing systems: skin tissue thermal effect and system durability. Conventional single-channel TET solutions have significant limitations, including inefficient energy transfer characteristics and high energy density levels producing tissue thermal effects. A reduced lifetime of the internal rechargeable battery is an additional drawback. In the proposed novel system, a multi-channel, time-space multiplexed and pulsed RF transmission waveform transcutaneous power delivery approach, is presented for sustained internal energy supply to high-power rated implantable devices. The bench system prototype performance evaluation results, revealed excellent high-energy transfer efficiency and safer management of lower energy density levels. In conclusion, the proposed pulsed transmission waveform protocol and multi-channel concepts can be configured for individual high-power rated LVAD devices to effectively mitigate tissue thermal effects and to prolong backup battery lifetime.
KW - Transcutaneous energy transfer
KW - TWESMI Technology
KW - pulsed RF transmission waveform
KW - chronic cardiac failure
KW - ventricular assist device
KW - LVAD
KW - heart transplant
KW - tissue temperature stability
KW - medical implants
UR - https://link.springer.com/chapter/10.1007%2F978-981-10-9038-7_175
UR - https://doi.org/10.1007/978-981-10-9038-7_175
M3 - Conference contribution
SN - 978-981-10-9037-0
VL - 68/2
SP - 945
EP - 950
BT - IFMBE Proceedings
CY - Singapore
ER -