CRC Dinamap Senior Design Project: Preliminary Design Review John Dlugokecki Steven Searcy Robbie Rutherford Arif Mohd Zahari January 29, 2009.

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Presentation transcript:

CRC Dinamap Senior Design Project: Preliminary Design Review John Dlugokecki Steven Searcy Robbie Rutherford Arif Mohd Zahari January 29, 2009

Project Overview Sponsor: Carlos Orozco, Informatics Manager, Vanderbilt Clinical Research Center (CRC) Goal: Develop a system that provides automated measurement and collection of vital signs data using the GE Dinamap vital signs monitor and automatically uploads the data to the CRC database

Project Equipment Dinamap Critikon  old equipment  needs to be phased out Dinamap Pro 1000 Dinamap ProCare

Current System Using outdated PC running Windows 95, to collect data from Dinamap Critikon over serial port Computer polls machine and locally stores data to Microsoft Access file Data is then stored on a floppy disk so that nurses can transfer data to server using a different machine  need to eliminate this step

Previous Project Similar senior project from Solution utilized serial-to-bluetooth adapter to send data from Dinamap to a PDA running LabVIEW Data stored locally and sent over b wireless network to SQL server. This solution was functional, but was not implemented due to inconsistency of bluetooth connection.

Project Requirements The system: Shall be able to take blood pressure and heart rate data at regular intervals over several days Shall be highly reliable, using redundancy to protect against lost data Shall be able to uniquely identify and match data to a patient (timestamp, patient ID, study ID) Shall store all data locally then securely upload data to CRC database over wireless local area network (IEEE b)

Project Requirements Should be easy to use by nurses Should require minimal user input to start data collection Shall be able to set regular time interval for data collection Shall provide visual feedback for investigator to preview measurement trends during the study

Potential Solutions Hardware  FPGA  PDA Device  Desktop Computer  Laptop Computer Software  Linux  Windows

Comparison of solutions Design Factors Hardware Solutions GUI (20%) Cost (5%) Size (15%) Performance (processor speed, memory) (20%) Versatility (10%) Reliability (30%) FPGANoLowSmallLow Med PDAYesMedSmallMed Low DesktopYesHighLargeHigh Med LaptopYesHighMedHigh

Proposed Solution Use a laptop to interface with Dinamap monitor through serial port Collect data and store locally on laptop hard drive Upload data to CRC server over wireless network (IEEE b)

High Level System Diagram

High Level Software Diagram

Resources Available GE has provided DLL file with basic functions to communicate with Dinamap ProCare  This includes sample workflow and sample application  Must run on Windows OS CRC will provide laptops

GE Sample Application

XML string from getState General Electric Healthcare Pro/Procare blood_pressure

ProCare/Laptop station Carlos has suggested a smaller laptop (10-12”) to fit on the rack with the ProCare

Laptop selection Our sponsor has several tablets with which we can develop (Toshiba Proteges) These are older laptops which are actually less powerful than the netbooks we are considering purchasing Purchasing new laptop(s) will occur after we develop a working system

Serial port adapter Our sponsor has provided us with Serial to PCMCIA card adapters  SIIG High-Speed Single Serial PC Card These have worked reliably for him We were able to successfully test them with the Dinamap monitor We will need a netbook with a PCMCIA slot

Serial port adapter We are also going to test a serial-to-USB adapter We have ordered one from Lewis Saettel This would allow for better system adaptability in the future May be unreliable

Schedule

System Demo