A device and method for measuring the concentration of analytes in the blood of a portion of tissue. The device includes a sensor module, a monitor, and a processor (separate from or integral with the sensor module). The sensor module includes a radiation source for emitting radiation to the tissue;...http://www.google.com.au/patents/US20030050541?utm_source=gb-gplus-sharePatent US20030050541 - Non-invasive blood analyte measuring system and method utilizing optical absorption