For my Bioengineering Senior Design project, I hope to add audible and visual alarms to the ECMO circuit's pressure monitor on an ECMO circuit. My questions are: 1) Do you know if this type of monitor already exists? 2) Do you know if any pressure monitors currently monitor circuit pressure pre and post heat exchanger? 3) Do the circuits you are familiar with have analog pressure monitors or digital pressure monitors for monitoring of pre and post oxygenator pressure? Any information you can provide would be most helpful.