An infusion system includes a characteristic determining device and an infusion device. The characteristic determining device includes a receptacle for receiving and testing an analyte from the user to determine a concentration of the analyte in the user. The characteristic determining device also includes...http://www.google.co.uk/patents/US20090099506?utm_source=gb-gplus-sharePatent US20090099506 - System for Providing Blood Glucose Measurements to an Infusion Device
