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Midfield wireless powering for deep implants
Hello everyone,
Today I discovered through the Stanford U Youtube channel the interesting and relevant technique of midfield wireless powering.
Stanford engineer invents safe way to transfer energy to medical chips in the body
Near-field inductive coupling energy transfer, the current standard in implanted devices recharging, is limited by the exponential decay of the electromagnetic field. In comparison MWP exploits spatially confined propagating modes of energy transport, induced by a patterned metal plate and which can generate an high-energy density region deep in tissue. Milliwatt levels of power can be transferred to a >5 cm deep micro-implant (2 mm, 70 mg) with exposure levels below human safety thresholds.
The PNAS publication mentioned in the article is Wireless power transfer to deep-tissue microimplants, but other useful resources like Midfield wireless powering for implantable systems (IEEE Proceedings, 2013) can be found via the lead researcher's publications page.
Today I discovered through the Stanford U Youtube channel the interesting and relevant technique of midfield wireless powering.
Stanford engineer invents safe way to transfer energy to medical chips in the body
Near-field inductive coupling energy transfer, the current standard in implanted devices recharging, is limited by the exponential decay of the electromagnetic field. In comparison MWP exploits spatially confined propagating modes of energy transport, induced by a patterned metal plate and which can generate an high-energy density region deep in tissue. Milliwatt levels of power can be transferred to a >5 cm deep micro-implant (2 mm, 70 mg) with exposure levels below human safety thresholds.
The PNAS publication mentioned in the article is Wireless power transfer to deep-tissue microimplants, but other useful resources like Midfield wireless powering for implantable systems (IEEE Proceedings, 2013) can be found via the lead researcher's publications page.