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Home > Press > Imec Presents Low-Power Chip for Intra-Cardiac Ventricular Fibrillation Detection

Imec’s Low-Power Chip for Intra-Cardiac Ventricular Fibrillation Detection
Imec’s Low-Power Chip for Intra-Cardiac Ventricular Fibrillation Detection

Abstract:
Imec demonstrated a low-power (20µW), intra-cardiac signal processing chip for the detection of ventricular fibrillation at this week's International Solid State Circuits Conference (ISSCC 2013) in San Francisco with Olympus. An important step toward next-generation Cardiac Resynchronization Therapy solutions, the new chip delivers innovative signal processing functionalities and consumes only 20µW when all channels are active, enabling the miniaturization of implantable devices.

Imec Presents Low-Power Chip for Intra-Cardiac Ventricular Fibrillation Detection

San Francisco, CA | Posted on February 22nd, 2013

Robust and accurate Heart Rate (HR) monitoring of the right and left ventricles and right atrium is essential for implantable devices for Cardiac Resynchronization Therapy. And accurate motion sensor and thoracic impedance measurements to analyze intra-thoracic fluid are critical for improving clinical research and analysis of the intra-cardiac rhythm. Moreover, extreme low-power consumption is required to further reduce the size of cardiac implants and improve the patient's quality of life.

Imec's low-power integrated circuit features three power-efficient, intra-cardiac signal readout channels (or in short: ECG channels). Each of the three ECG channels is equipped with a precision ECG signal readout circuit with very low-power consumption and an analog signal processor to extract the features of the ECG signal for detection of ventricular fibrillation. The feature extractor achieves only 2ms latency to facilitate responsive Cardiac Resynchronization Therapy.

Additionally, the chip includes unique features that improve the functionality of Cardiac Resynchronization Therapy devices. First, the low-power accelerometer readout channel enables rate adaptive pacing. Secondly, to handle intra-thoracic fluid analysis, the chip includes a 16-level digital sinusoidal current generator and provides 82db wide dynamic range bio-impedance measurement, in the range of 0.1Ω-4.4kΩ with 35mΩ resolution, and achieves best-in-class accuracy (>97%).

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About IMEC
Imec performs world-leading research in nanoelectronics. Imec leverages its scientific knowledge with the innovative power of its global partnerships in ICT, healthcare and energy. Imec delivers industry-relevant technology solutions. In a unique high-tech environment, its international top talent is committed to providing the building blocks for a better life in a sustainable society. Imec is headquartered in Leuven, Belgium, and has offices in Belgium, the Netherlands, Taiwan, US, China, India and Japan. Its staff of close to 2,000 people includes more than 600 industrial residents and guest researchers. In 2011, imec's revenue (P&L) was about 300 million euro. Further information on imec can be found at www.imec.be.

Imec is a registered trademark for the activities of IMEC International (a legal entity set up under Belgian law as a "stichting van openbaar nut”), imec Belgium (IMEC vzw supported by the Flemish Government), imec the Netherlands (Stichting IMEC Nederland, part of Holst Centre which is supported by the Dutch Government), imec Taiwan (IMEC Taiwan Co.) and imec China (IMEC Microelectronics (Shanghai) Co. Ltd.) and imec India (Imec India Private Limited).

About Olympus

Tokyo-based Olympus Corporation is a precision technology leader, designing and delivering innovative solutions in its core business areas: medical and surgical products, life science imaging systems, industrial measurement and imaging instruments, and cameras and audio products.

For more information, please click here

Contacts:
Imec:
Hanne Degans
External Communications Officer
T: +32 16 28 17 69
Mobile: +32 486 06 51 75


Olga Walsh
Business Technology
[ f o r m u l a ]
Formula PR, Inc.
1215 Cushman Avenue
San Diego, CA 92110
Office 619-234-0345

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