GCRC Informatics Project Sponsor: Dr. Paul Harris, GCRC Informatics Director Faculty Mentor: Dr. Andrew Dozier Members: Chris Heath, BME/EE Adam Nagel, CompE Chris Nash, EE Brendan Soar, CompE April 8, 2005 Committee of Visitors Presentation

What is the GCRC? General Clinical Research Center GCRC monitors patients taking experimental medicines and suffering from rare medical conditions Patients’ vital signs are recorded frequently

Problem Statement Nurses periodically take BP, ECG, heart rate, temperature readings –Currently printed on paper –Nurses must visit at strict intervals, sometimes every 5 minutes –Any discrepancy can introduce large and expensive error –Manual data entry into server An automatic device would improve reliability of data-gathering process –Strict, regular intervals –Data is recorded and stored automatically, with less risk of loss or error

System Requirements Must trigger & retrieve measurements from monitors –At least every 60 seconds Must upload data to MySQL server via IEEE b Must be simple to use –Operated by untrained nurses –Must allow setting of measurement interval –Allow for taking a measurement at any time Must be easily modified to accommodate new devices Must be highly reliable –Loss of any data is unacceptable

Measurement Equipment and Interfaces Vital signs monitors –DINAMAP Pro 1000 –RS-232 (serial) –Opto-Isolated Adapter GCRC network –IEEE b wireless LAN –Security features Data server –MySQL server –Web-based front end for researchers

PDA Solution Graffiti, Touch screen PDA SQL Server Dinamap Monitor Serial commands Data User Commands Device Status Data Web Server MySQL Commands

PDA Solution, cont. PDA OSBluetooth Bluetooth to Serial Dinamap b To GCRC network To User Interface Local Storage PDA device

Use HTTP to Access Web Pages

National Instruments LABVIEW 7.1 Bluetooth management Serial communication Fully-functional file I/O system –Parsing is simple TCP functions allow web access Intuitive and easy to learn Full-featured PDA development toolkit

Demonstration

Virtual Demonstration

Testing Short Duration Testing –Less than 1 hour test –Fixed small bugs Long Duration Testing –Multiple 5+ hour tests –Solved memory problems with Windows upgrade

Project Status Finished Field Test Working Product Awaiting Deployment