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Cardiovascular disease caused 32.8% of deaths in the United States in 2008 [1]. The most important medical parameter is the arterial blood pressure. The origin of high or low blood pressure can mostly be found in the vessel compliance. With the presented implantable sensor, we are able to directly measure strain of arteries, as an indicator of arteriosclerosis. The sensor is designed as a cuff with...
Spectralphotometric measurement methods as, for example, pulse oximetry are established approaches for extracorporeal determination of blood constituents. We measure the dynamics of the arterial distension intracorporeally thus extending the scope of the method substantially. A miniaturized opto-electronic sensor is attached directly to larger arteries without harming the vessel. The transmitted light...
High blood pressure (BP), also known as hypertension, is the most common cardiovascular disease and one of the leading causes of death in industrial countries. Clinical research is looking for a possibility to monitor blood pressure continuously. Standard non-invasive cuff-based BP measurement devices have proven ill-suited for a continuous long-term monitoring as they severely restrain the patients...
We present a novel implantable, but extravascular, optical sensor for continuous long-term monitoring of vital medical parameters such as arterial blood oxygen saturation, pulse and respiratory frequencies. The biocompatible sensor uses a silicone-based manufacturing technique. It consists of two elastic silicone stripes that house the optoelectronic devices. These flexible stripes can be wrapped...
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