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Considerable scientific and technological effort has been devoted to develop implantable wireless stimulator systems for biomedical applications. The main purpose of such stimulator system is to provide electrical excitation to human body cells to help patient re-gain lost body function or rectify fault body function, in an elegant way that there is no notable cosmetic difference when patients are...
Inductive, near-field wireless power transfer
(WPT) is widely used in applications such as
radio-frequency identification (RFID) and powering
of medical implants. It is useful in any
application requiring small amounts of power
where batteries are undesirable. The design of coils
for both transmit (TX) and receive (RX) ends of the
link has been largely empirical until now. In order to
improve...
This paper presents a wireless power recharging system design for implantable bladder pressure chronic monitoring application. The power recharging system consists of an external 6-turn 15-cm-diameter powering coil and a silicone-encapsulated implantable 18-turn spiral coil with a dimension of 7 mm × 17 mm × 2.5 mm, which encloses a 3-mm-diameter 12-mm-long rechargeable battery, two ferrite rods,...
The use of closed-loop implantable telemetry devices is increasing as recent clinical studies have shown their efficiency and usefulness in detecting and treating various cardiac arrhythmias. In this paper, we present a single-chip closed-loop system providing closed-loop feedback of sensed cardiac patterns. This device promises more optimized stimulation parameters to cure rapid arrhythmias compared...
Long term neurophysiological studies of un-anesthetized and freely moving animals require an implantable miniaturized telemetry system that can acquire and transmit neural firing patterns and other physiological parameters directly from inside the body. In this paper the design and in vitro results of a long range implantable bio-telemetry system is presented. This system has three main features:...
This paper presents a wireless power recharging system design for implantable bladder pressure chronic monitoring application. The power recharging system consists of an external 6-turn 15-cm-diameter powering coil and a silicone-encapsulated implantable spiral coil with a dimension of 7 mm × 17 mm × 2.5 mm and 18 turns, which encloses a 3-mm-diameter 12-mm-long rechargeable battery, two ferrite rods,...
This paper presents a wireless power recharging system design for implantable bladder pressure chronic monitoring application. The power recharging system consists of an external 4-turn 15-cm-diameter powering coil and a silicone-encapsulated implantable spiral coil with a dimension of 7 mm ?? 17 mm ?? 2.5 mm and 18 turns, which further encloses an ASIC with a programmable charging current and logic...
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