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- Stephan Reichelt, Jens Fiala, Armin Werber, Katharina Förster, Claudia Heilmann, Rolf Klemm, and Hans Zappe.
- Micro-Optics Laboratory, Department of Microsystems Engineering--IMTEK, University of Freiburg, Freiburg, Germany. stephan.reichelt@gmx.de
- IEEE Trans Biomed Eng. 2008 Feb 1; 55 (2 Pt 1): 581-8.
AbstractA long-term implantable photoplethysmographic sensor system is proposed. The system employs an elastic cuff which is directly wrapped around an arterial blood vessel. The optically transparent cuff is equipped with light emitting diodes and a photo transistor including the technology of pulse oximetry. The sensor will permit real-time, continuous monitoring of important vital parameters such as arterial blood oxygen saturation and pulse rate over a long-term period in vivo. We emphasize on the specific requirements for design and instrumentation of the implantable sensor and discuss first in vitro data acquired with that new photonics-based sensor.
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