This paper presents results from the development of a portable device for monitoring chronically ill people using BSP. The core of the non-invasive, in-vivo measurement of hemodynmiac and blood components is an optical microspectrometer developed by Anvajo GmbH. In contrast to finger sensors or earclips, which work with narrow-band light, the absorption spectrum contains considerably more information. The spectrometer is embedded in a structure based on flexible electronics. The advantage is the improved alignment of different sensors to the body surface. An active position correction of the sensors by pneumatic actuators supports the alignment of the sensors and should help to improve the measuring quality.