Wireless energizing system for an automated implantable sensor

Swain, Biswaranjan; Nayak, Praveen Priyaranjan; Kar, Durga Prasanna; Bhuyan, Satyanarayan; Mishra, Laxmi Prasad

doi:10.1063/1.4959269

Cited by 20 publications

(4 citation statements)

References 13 publications

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“…Inductive telemetry is necessarily short range as the magnetic field falls off very quickly from the transmitting coil, and requires the placement of a wand (containing a conductor coil) in very close proximity (5 cm) to the CIED can (containing the other conductor coil) to operate. [79][80][81] Inductive telemetry requires significant power (30-100 mW, or 10-33 mA from a 3 V battery) to operate, but the interrogator transmits not only signals but also energy to the CIED. 79,81,82 The CIED can use the externally provided energy to transmit signals back to the interrogator without consuming much, if any, of its limited energy reserve stored in its primary battery.…”

Section: Appendix 2 Telemetry For Cardiac Implantable Electronic Devicesmentioning

confidence: 99%

Technologies for Prolonging Cardiac Implantable Electronic Device Longevity

Lau

2017

Pacing Clinical Electrophis

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Prolonged longevity of cardiac implantable electronic devices (CIEDs) is needed not only as a passive response to match the prolonging life expectancy of patient recipients, but will also actively prolong their life expectancy by avoiding/deferring the risks (and costs) associated with device replacement. CIEDs are still exclusively powered by nonrechargeable primary batteries, and energy exhaustion is the dominant and an inevitable cause of device replacement. The longevity of a CIED is thus determined by the attrition rate of its finite energy reserve. The energy available from a battery depends on its capacity (total amount of electric charge), chemistry (anode, cathode, and electrolyte), and internal architecture (stacked plate, folded plate, and spiral wound). The energy uses of a CIED vary and include a background current for running electronic circuitry, periodic radiofrequency telemetry, high-voltage capacitor reformation, constant ventricular pacing, and sporadic shocks for the cardiac resynchronization therapy defibrillators. The energy use by a CIED is primarily determined by the patient recipient's clinical needs, but the energy stored in the device battery is entirely under the manufacturer's control. A larger battery capacity generally results in a longer-lasting device, but improved battery chemistry and architecture may allow more space-efficient designs. Armed with the necessary technical knowledge, healthcare professionals and purchasers will be empowered to make judicious selection on device models and maximize the utilization of all their energy-saving features, to prolong device longevity for the benefits of their patients and healthcare systems.

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Section: Appendix 2 Telemetry For Cardiac Implantable Electronic Devicesmentioning

confidence: 99%

Technologies for Prolonging Cardiac Implantable Electronic Device Longevity

Lau

2017

Pacing Clinical Electrophis

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“…However, the usual energizing schemes have not been preferably adopted due to the associated ubiquitous difficulties and cumbersome effect. There is a chance of snapping of wire connection, repeated replacement of low life time batteries, corrosion in the implant, and limitation in tininess due to battery size & weight [8]. This necessitates the pursuit of wireless energizing technique which is cordless, reliable, safer, smarter, and environmental friendly [9,10].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Driven Resonant Wireless Energy Transfer System for Implantable Electronic Sensor

Swain¹,

Patnaik²,

Halder³

et al. 2019

PIER M

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In order to energize the biomedical implantable electronic devices wirelessly for in vivo health monitoring of patients in an isolated, outdoor and inaccessible environment, an alternate driving energy source is highly desirable. In pertinent to this, a photovoltaic driven wireless energizing system has been explored. The system is designed to convert solar energy to a high frequency energy source so as to facilitate energy transfer through resonant inductive link to the automated bio-medical sensing system allied with the receiver unit. The received power is observed to be 286 mW for the coil separation gap of 5 cm and load value of 40 Ω at the resonant frequency of 772.3 kHz. The automated biomedical smart sensor is competent to acquire the body parameter and transmit the consequent telemetry data from the body to the data recording segment. The real-time body temperature parameter of different living beings has been experimented, and to ensure the accuracy of the developed system, the observed parameter has been matched with a calibrated system. The proposed scheme can be suitable for monitoring wirelessly other in vivo health parameters such as blood pressure, bladder pressure, and physiological signals of the patients.

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“…However, the charging efficiency is extremely low due to the short-receiving distance and a large amount of heat [7,8]. The purpose of this study is to develop a wireless sensor that can be used in the human body and its application to wireless electrocardiogram (ECG) technology.…”

Section: Introductionmentioning

confidence: 99%

Development and Application of Wireless Power Transmission Systems for Wireless ECG Sensors

et al. 2018

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We investigated the variations in the magnetic field distribution and power transmission efficiency, resulting from changes in the relative positions of the transmitting and receiving coils, for electromagnetic induction-type wireless power transmission using an elliptical receive coil. Results of simulations using a high-frequency structure simulator were compared to actual measurement results. The simulations showed that the transmission efficiency could be maintained relatively stable even if the alignment between the transmitting and receiving coils was changed to some extent. When the centre of the receiving coil was perfectly aligned with the centre of the transmitting coil, the transmission efficiency was in the maximum; however, the degree of decrease in the transmission efficiency was small even if the centre of the receiving coil moved by ±10 mm from the centre of the transmitting coil. Therefore, it is expected that the performance of the wireless power transmission system will not be degraded significantly even if perfect alignment is not maintained. Animal experiments confirmed good ECG signals for the simulation conditions. The results suggested a standardized application method of wireless transmission in the utilization of wireless power for implantable sensors.

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Wireless energizing system for an automated implantable sensor

Cited by 20 publications

References 13 publications

Technologies for Prolonging Cardiac Implantable Electronic Device Longevity

Technologies for Prolonging Cardiac Implantable Electronic Device Longevity

Photovoltaic Driven Resonant Wireless Energy Transfer System for Implantable Electronic Sensor

Development and Application of Wireless Power Transmission Systems for Wireless ECG Sensors

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