An EHR built on Ruby on Rails that can take a HL7 feed from a machine. This EWS is built to work with the Philips SureSigns VS4 Vital Signs Monitor, but I’m working on testing it with other machines.
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The Highcharts-Js-Rails gem has been patched to allow Javascript onLoad events (for the rendering of the blood pressure carats)
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A version of wkhtmlpdf must be installed. There is a gem in the gemfile that installs this, but can occasionally play up, so a manual install is preferred.