connecting pulse oximeter to Arduino board

Hi,
Has anyone managed to connect a pulse oximeter sensor straight into an arduino board- without going through the monitor that displays the heart beat and blood pressure?
Any code available for programming the board and getting the heart beats into MAx/MSP
cheers,
Felix

Look here: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238175638

but no response so far :frowning: