Wireless and Wearable Medical Electronics
Wireless and wearable implantable biomedical devices are promising for continuous real-time measurement of underlying physiological signals such as electrocardiography in the heart, electromyography in the muscle, action potentials in brain etc. In these biomedical devices, wireless power and data telemetry plays a key function that prolongs their operational life by promoting communication based on backscattering that can run without a battery or on single rechargeable battery.
This tak discusses the Wireless and wearable implantable biomedical devices.
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- Synergy Microwave Corp
- Paterson, New Jersey
- United States
- Building: 201 McLean Boulevard
- Contact Event Host
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Ajay Kumar Poddar, Phone: (201)560-3806) (Email: akpoddar@synergymwave.com)
- Co-sponsored by MTT/AP-S & ED/CAS
- Starts 20 April 2016 03:00 PM UTC
- Ends 25 April 2016 03:00 PM UTC
- No Admission Charge
Speakers
Dr. Ing. habil Ajay K. Poddar
Wireless and Wearable Medical Electronics
Magneto-inductive telemetry is widely used in these devices for such wireless power and data transfer. The typical inductive telemetry core consists of a pair of antenna/coils placed coaxially in space, one inside the device and one placed externally as part of the reader/interrogator. The external coil typically transmits data which is also harvested for its power and regulated to power up the implant circuitry. The antennas used for such telemetry systems are either loop wire coils or printed spiral coils. One of the most important design criteria is to maximize the coupling coefficient between external and implanted coils, which affects the power/data transfer efficiency significantly. Recently, there has been an effort utilizing metamaterial resonator for improved wireless energy transfer. Metamaterial resonators such as SRR can exhibit a strong magnetic resonance to EM wave with high quality factor (Q) at resonance. This makes it an excellent candidate for near-field resonant power/data transfer. The SRR also enables sub-wavelength focusing of the incident energy at resonance in the capacitive gap of the metamaterial which could be harvested for energy/power. Compared to conventional antenna/coil system for power telemetry, SRR provides a compact and low profile geometry due to an integrated antenna and resonator function built into the structure. Coupled Mode Theory (CMT) predicts that when the resonances of both coils are matched, under the condition of the “strongly coupled regime”, it results in maximal energy transfer between coils. However, if the resonance of either of coils deviates from one another, the power transfer efficiency drops sharply. Since the biological environment is expected to vary due to physiological changes, it is very hard to match their resonances.
This tak discusses the pros and cons od use of "Wireless and wearable implantable biomedical devices".
Biography:
Reserach Group, Oreadea University, Romania
Email:
Address:Oradea, Romania
Dr. Ing. habil Ajay K. Poddar
Wireless and Wearable Medical Electronics
Biography:
Email:
Address:Oradea, Romania
Agenda
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