In accordance with an embodiment of the present technique, there is provided methods and systems for detecting the presence of venous pulsation by adjusting the sensitivity of a detection algorithm based on a sensor characteristic and/or notifying a caregiver of the presence of venous pulsation by ceasing...http://www.google.com.au/patents/US20080221417?utm_source=gb-gplus-sharePatent US20080221417 - System and method for detection of venous pulsation
