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Implantable photoplethysmographic sensor for continuous monitoring of cardio-vascular parameters

Project description

Continuous acquisition of vital parameters is becoming increasingly vital for the improvement of the quality of life of chronically ill patients. Photoplethysmographic measurements offer the possibility of determining the arterial blood pressure and oxygen saturation without the necessity of placing a sensor inside the blood vessel. For continuous monitoring of these parameters, implantable sensor systems are being developed. The sensors are embedded in a biocompatible silicone housing. One sensor type includes fibre-optical components to lead the light to the underlying tissue and collect a part of the backscattered light to a photosensor. Another sensor consists of a circuit with optoelectronic components mounted on a flexible carrier. This project was completed in 2011.

Start/End of project

01.01.2008 until 31.12.2011

Project manager

Prof. Dr. Hans Zappe

Contact person

Jens Fiala




Landesstiftung BW


Sensors on basis of optical fibers have been fabricated and are currently characterized by in vitro experiments, Driving and control units as well as data acquisition and required algorithms for signal processing are being optimized at the moment
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