Display adaptor for the Vitatek #511 monitor and the Puritan-Bennett CO2 analyzer

Many CO2 infrared analyzers require additional graphics devices for continuous CO2 waveform display. An adaptor was designed to integrate the output of a Puritan-Bennett infrared CO2 analyzer into the display of a Vitatek #511 patient monitor. The adaptor is made with inexpensive off-the-shelf components and proved successful during more than six months of use.