1. Fully Wireless Implantable Cardiovascular Pressure Monitor Integrated with a Medical Stent.
- Author
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Chow, Eric Y., Chlebowski, Arthur L., Chakraborty, Sudipto, Chappell, William J., and Irazoqui, Pedro P.
- Subjects
- *
SURGICAL stents , *IMPLANTED cardiovascular instruments , *ELECTROMAGNETIC waves , *BIOSENSOR research - Abstract
This paper presents a fully wireless cardiac pressure sensing system. Food and Drug Administration (FDA) approved medical stents are explored as radiating structures to support simultaneous transcutaneous wireless telemetry and powering. An application-specific integrated circuit (ASIC), designed and fabricated using the Texas Instruments 130-nm CMOS process, enables wireless telemetry, remote powering, voltage regulation, and processing of pressure measurements from a microelectromechanical systems (MEMS) capacitive sensor. This paper demonstrates fully wireless-pressure-sensing functionality with an external 35-dB⋅m RF powering source across a distance of 10 cm. Measurements in a regulated pressure chamber demonstrate the ability of the cardiac system to achieve pressure resolutions of 0.5 mmHg over a range of 0-50 mmHg using a channel data-rate of 42.2 kb/s. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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