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This evaluation examines the use of active RFID technology in perioperative settings. It explores different systems and their capabilities, including their accuracy in location tracking and potential for scalability. The conclusion highlights the need for further development to meet safety-critical standards.
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Evaluation of Active RFID in the Perioperative Context Duncan Clarke Fremont Associates, LLC Camden, South Carolina
Outline • Introduction • Experimental Environment • Candidate Company & Result • Conclusion
Introduction • Operating Room of the Future (ORF) project at University of Maryland Medical Center (UMMC) in Jan 2005.
Ekahau • Finland • 802.11 • (x, y) position • T301 Tag • 45 x 55 x 19 mm • 50g • 1 year battery life
Sonitor • Norway • Ultrasound • A nearest reader location • Tag-E Tag • 56 x 32 x 18 mm • 23 g • 5+ year B.L.
Radianse • Massachusetts, USA • RF+ infra-red light • Zone-level location • Tag • 45 x 73 x 19 mm
UbiSense • Cambridge, USA • Ultra-wideband RF • (x, y, z) position • Tag • About 170 x 120 x 10 mm • 45g • 1 year B.L.
Agility Healthcare • Richmond, Virginia, USA • Two different frequency • Zone-level location • Tag • Asset tag: 24x 48x 8, non-replaceable, 8.3g • Wrist tags: 25x 38x 11, replaceable, 7g
Exavera • New Hampshire, USA • RF • (x, y) location • Tag • Bracelet, Badge, Asset Tag
Conclusion • Location data accurate is within 3m, but below any standard for safety-critical perioperative system. • UbiSense might allow differentiation of individual person or object within a room. • But it’s still in controlled environment. • Another consideration is the ability to scale up for hospital-wide deployment.