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Use of Smart Dust in Blood Unit Temperature Monitoring

Use of Smart Dust in Blood Unit Temperature Monitoring. Group 25 James Lin BME Adam Lowisz CompE Advisor Dr. Dan France Advisor Dr. Paul King. Background. Every year Vanderbilt University Medical Center loses $600k+ Blood units need to be stored below 10 degree

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Use of Smart Dust in Blood Unit Temperature Monitoring

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  1. Use of Smart Dust in Blood Unit Temperature Monitoring Group 25 James Lin BME Adam Lowisz CompE Advisor Dr. Dan France Advisor Dr. Paul King

  2. Background • Every year Vanderbilt University Medical Center loses $600k+ • Blood units need to be stored below 10 degree C; if it goes above that temperature, it is discarded • Many cases of wasted blood units are unreported. Dr. France & Dr. St. Jacques • Improper handling causes blood to be wasted; many “blood units are returned without any used, and many are never even picked up.” Dr. Anne Neff • 1691 unit of blood products are lost at Vanderbilt Medical Center over a 7 month period. • Blood stored at room temperature in plastic bags make it susceptible to development of bacteria (sepsis), which may lead to mortality.

  3. Significant cost associated with collecting, testing, preparing components, labeling, storing and shipping • Significant cost associated with collection • Collecting • Testing • Preparing components • Labeling • Storing and shipping blood • Recruiting and educating donors • Quality assurance • Hepatitis B surface antigen (HBsAg) • Hepatitis B core antibody (anti-HBc) • Hepatitis C virus antibody (anti-HCV) • HIV-1 and HIV-2 antibody (anti-HIV-1 and anti-HIV-2) • HTLV-I and HTLV-II antibody (anti-HTLV-I and anti-HTLV-II) • Serologic test for syphilis • Nucleic acid amplification testing (NAT) for HIV-1 and HCV • NAT for WNV

  4. Problem Description • What can we do to preserve the blood units and prevent blood units from being used incorrectly? • Smart Dust from Crossbow Technology to monitor the blood units!

  5. Project Solution • Motivation: The project was motivated by the Crossbow Smart Dust Challenge to use smart dust and wireless technology to positively impact society. • Idea for monitoring blood bags to prevent wasting units of blood came from Dr. Dan France, our advisor, a Research Assistant Professor of Anesthesiology and of Medicine.

  6. Project Definition • Objectives: To design a system that monitors the temperature of blood in bags and wirelessly transmits this information through a mesh network to a central server from which a staff member can be alerted if there are any complications with the bags.

  7. Proposed Implementation • Advantages • Ready to use • Attached to bag implies less error • Disadvantage • Need a specific manufacturer for electronics sleeve • Can cost more in long term

  8. Proposed Implementation • Advantage • Modularity in Design • One time cost • No need for specific bag manufacturer • Disadvantages • Human error • Cooling interference

  9. Smart Dust Smart Dust Mote Blood bag Blood bag Gateway Proposed System Interface OR or ER Blood Bank PC PC: -database -Mote-VIEW

  10. Market Potentials • Clients: hospitals and blood banks • Competitor: currently there are no competitors with similar project objectives

  11. Social Impact • Less blood collection will be required from the blood banks • Preservation of life through better use of blood units

  12. Work Completed The devices have been ordered • Mote (radio/processor module) MICA2DOT….$115.00 • 3rd Generation, Quarter-sized (25mm), Wireless Smart Sensors • TinyOS - for communications and processing • Battery Powered - Low Mass • Wireless Communications with Every Node as a Router Capability • 868/916 Multi-Channel Radio Transceiver (compatible with MICA2/MPR4xx Series) • Prototype Sensor board Module MDA500……$30 • Available to attach external analog input sensors • Serial Gateway………….……………………..$95.00

  13. Work Completed (continued) Research completed • VUMC loses $600k+ a year on blood wastage • Blood cannot go above 10ºC • Data acquisition module operates at 0V to 3V • Formula for calculating temperature using MICA2DOT’s thermistor

  14. Work Completed (continued) Research completed • MICA2DOT Interface

  15. Current Work • Research into software • Mote-View • Tiny OS • nesC • Reviewing operating manual for motes

  16. Future Work • Building and refining a prototype • Create server layer with a database logger • Alert method

  17. References • Dr. Paul St. Jacques • Dr. Anne Neff • Dr. Dan France • Dr. Jim Hutchinson • Mr. Efosa Ojomo

  18. Questions?

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