Limits for increasing the WPT distance in AIMDs.
Resumen:
Wireless Power Transfer (WPT) can be used in Active Implantable Medical Devices (AIMDs) to reduce battery size and/or extend durability. Typically, the power transmitter (Tx) is placed over the patient s skin during the recharge process. In this paper, we address the main challenges to overcome when trying to extend the distance between the Tx and the implant. An experimental example is presented which can deliver 5 mW at 30 cm. The specific absorption rate (SAR) was within the regulatory limits according to the evaluation performed with sim41ife software by Zürich MedTech.
| 2020 | |
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Wireless Power Transfer WPT Inductive Wireless Power Transfer Inductive Power Transmission IPT Inductive Powering Inductive Link Strongly-Coupled Magnetic Resonance SCMR Magnetic Field Near Field Wireless Power Transfer Distance Active Implantable Medical devices AIMDs Power Transfer Efficiency PTE Coils Transmitter Coil Electromagnetic Compatibility EMC Safety Specific Absorption Rate SAR Finite Element Analysis FEA |
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| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/25784 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| Sumario: | Wireless Power Transfer (WPT) can be used in Active Implantable Medical Devices (AIMDs) to reduce battery size and/or extend durability. Typically, the power transmitter (Tx) is placed over the patient s skin during the recharge process. In this paper, we address the main challenges to overcome when trying to extend the distance between the Tx and the implant. An experimental example is presented which can deliver 5 mW at 30 cm. The specific absorption rate (SAR) was within the regulatory limits according to the evaluation performed with sim41ife software by Zürich MedTech. |
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