Smart Bandages are bandages that apart from protecting a wound are able to monitor the healing process as well. Organic electronic devices are ideal for incorporation in bandages due to their reduced thickness, weight, and flexibility. Also there is the promise for large scale and cheap production, for example by means of roll-to-roll manufacturing. This is important since bandages are disposables and therefore low cost. We present a pulse meter based on organic light emitting diodes (OLED) and organic photodiodes (OPD). The devices are manufactured on plastic foil substrates by means of a variety of technologies. Some of these technologies, such as printing, lamination and interconnection will be discussed in more detail. A modular build up of these foils and a wireless sensor nodes will allow for an almost 2 dimensional design that can be incorporated in a body area network. Furthermore, the modular approach allows for the application of the optical sensing unit in a broad variety of fields (e.g. chemical sensing).
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