A patient's heart condition is monitored by a patient-location based unit. The patient-location based unit includes a receptacle for receiving a cartridge that includes heart condition monitoring information. The patient-location based unit receives information from the patient, monitors the patient's...http://www.google.co.uk/patents/US7258666?utm_source=gb-gplus-sharePatent US7258666 - System and methods for monitoring a patient's heart condition
