Point-of-Care Bedside Bar Code Verification System Alex Stramel 2, Talbot Hansum 1, 2, Nicholas Ryan 1, Jason Whaylen², Vanessa Luckman 1, 2 Advisors: Paul King, Ph. D. 1, Patrick Harris 3 1 Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 2 Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN 3 Pharma. Sys Hospital Solutions, Cary, NC Design Goals Hardware and Software Design System Design Problem Statement Hardware Data Flow Graphical User Interface In recent years, preventing medical errors has been a major initiative of the Food and Drug Administration (FDA). According to a study conducted by the Institute of Medicine, medical errors affect an estimated 1. 5 million people annually, costing $1. 5 billion and killing several thousands in the United States alone. A Preventable Adverse Drug Event (PADE) is a common medical error that occurs during medication administration. The FDA has strongly recommended a bar code system to reduce this error using NDC (National Drug Code) bar codes on unit doses of medicine. We worked with Pharma. Sys Hospital Solutions to develop a product to address this need. PDA: mobile device capable of barcode scanning at the point-of-care Host Computer: acts as database server as well as barcode printing station Wireless Router: creates WLAN for communication between PDA and host computer Barcode Printer: creates labels with barcodes and other needed information Product Description (e. MEDS) We created a system called e. MEDS that works by scanning the nurse’s bar code on his/her identification badge, the bar code on the wrist band of the patient, and the bar code of the medication. If there is a conflict, the system will visually alert the nurse and drug administration will not be allowed. If all three scans check out, the system will save the following information: Example: -Date/Time - Size and # of Units - Nurse’s Name - Dose # of Total Objectives: “Please administer drug” “Mismatch: No drug administration” - Reflect the needs and constraints of the current hospital environment and consider pharmacists, nurses, and hospital IT professionals when making design decisions - Include software, hardware and other digitized apparatus to develop and execute the bar code system - Adapt to a number of hospital settings and interface with an organization’s existing software and IT architecture - Be HIPAA compliant and consider network security issues - Easily adapted and intuitive for end-users Existing Products and Cost Competitors: Omnicell, Care. Fusion, Baxter Healthcare, Mc. Kesson, Cerner Bridge Medical, Intellidot Corporation Cost Example: - St. Clair Hospital (Pittsburgh, PA), using Veriscan - 15646 annual hospital admissions - 0. 63 PADEs in 100 admissions; 98. 57 PADEs per year - Average $6400 per prevention Savings: $630, 000/year Potential Market Growth Market Considerations: - 2. 4 million registered nurses in 7, 000 hospitals in the United States - Largest Annual Growth Rate (5. 12%) in medium hospitals which have 50 -250 beds - Market goal: To find one potential customer at a medium hospital to implement system Our System Advantage: We offer a user-friendly interface and have an organizational flow that will decrease the amount of time that a nurse spends filling out forms and enhances patient safety. In addition, the FDA mandate for drug validation will ensure the need for these sorts of systems in hospitals. Handheld PDA Choice: Symbol MC 50 PDA Requirements: - Alphanumeric Keypad - Barcode Scanning Capabilities - Windows OS - WLAN Capabilities - Multicolor Display - Speakers PDA Considerations: - Size of Display - Weight and Size - Processor and Memory - Environmental Sealing - Durability/Drop Specs - Battery Life - Cost Symbol MC 50 Specifications: - Dimensions: 5. 35 x 2. 95 x. 94 in. -Weight: 6. 77 oz -Touch Panel Display: 4 x 3 in. , TFT-LCD - QWERTY 37 button keypad - 1 D Linear CMOS Scanner - CPU: Intel®XScale 520 Mhz processor - Memory: 64 MB RAM/ 64 MB ROM - Operating System: Windows Mobile 2003 - WLAN: IEEE 802. 11 b - Battery: Rechargeable Lithium Ion 3. 7 V - Includes: Speakers, Microphone, SDIO Slot - Approximately $1200 Host Computer, Router, and Barcode Label Printer Barcode Printer Choice: Intermec Easy. Coder PC 4 Barcode Printer Requirements: Produces quality barcode labels Host Computer Requirements: - Windows based for synchronization with PDA - Adequate memory to hold prototype databases Host Computer Choice: HP Laptop Wireless Router Requirements: Capable of creating WLAN for PDA Wireless Router Choice: Linksys Router Software and Databases Software Description: - PDA program developed with Visual Studio and Visual Studio Emulator - Written in C# to be compatible with Windows CE. NET operating system of the PDA - Alternate version written in C++ using GUI layout software QT for use with windows based PCs Software Process Flow: Possible Software Modifications - Incorporate patient photographs into the patient record - Color changes to the program’s background when medication errors are detected - Automatic updates to the e. MAR (electronic medication administration record) - Compatibility with RFID technology - Notification of drug administration method (i. e. pill, IV bag, syringe) - Compatibility with multiple types of servers (Oracle, DB/2, etc. ) and databases (MS Access, SAP DB, etc. ) Conclusions and Future Direction Our team has succeeded in the creation of a system that deters medication administration errors at the patient bedside. With our fully functional prototype, the next logical step is to pilot e. MEDS in a small or medium-sized hospital. Hospitals are not the only option, however. Pharmacies, nursing homes, and small clinics would also benefit from our system. On an even simpler level, school systems might be interested in e. MEDS for ensuring student safety when medications are administered by school nurses. Pharma. Sys Hospital Solutions plans on piloting our prototype system and expanding the functionality for hospital use. With an estimated savings of $630, 000 per year and a market growth of 5. 12%, piloting e. MEDS in a medium -sized hospital yields the greatest return. Future business plans include hiring employees with software engineering and marketing experience to take over the product and continue working on new developments for the pilot. These plans are currently in work and will continue into the summer and next year. Overall, our prototype of e. MEDS has created a solid foundation for future design and development considerations. Acknowledgements We would not have succeeded without the patience, consideration and assistance of the following individuals: Databases: - Currently using Microsoft SQL server to hold drug, patient, and staff databases - PDA application must use SQL server because of limitations of C#, however PC version can integrate with multiple types of servers • • • Charles Lankford, CEO, Pharma. Sys Patrick Harris, e. MEDS Product Manager, Pharma. Sys Hospital Solutions Paul King, Ph. D. , Vanderbilt University School of Engineering Mark Roberts, Computer Science, Vanderbilt University David Cochran, Manager Health Systems Network, Vanderbilt University
Скачать презентацию Point-of-Care Bedside Bar Code Verification System Alex Stramel
0b5a582abcc8a3011451c04c17470df9.ppt