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Related Experiment Videos

The palm as a real-time wide-area data-access device.

J B Blum1, J M Kramer, K B Johnson

  • 1The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Proceedings. AMIA Symposium
|February 9, 2002
PubMed
Summary

Wireless networking in hospitals shows promising but variable results. Connectivity ranged from 59% to over 93% across two medical centers, depending on location and service.

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Area of Science:

  • Healthcare technology
  • Wireless networking
  • Medical informatics

Background:

  • Handheld wireless devices offer potential benefits for healthcare delivery.
  • The performance of off-the-shelf wireless networking in medical centers is not well-established.
  • Evaluating wireless coverage is crucial for reliable mobile health solutions.

Purpose of the Study:

  • To assess the wireless network coverage of handheld devices within academic medical centers.
  • To identify factors influencing wireless connectivity in hospital environments.
  • To ensure wireless devices do not interfere with existing medical equipment.

Main Methods:

  • Tested wireless connectivity of Palm VII and Minstrel V modems in typical house staff locations.
  • Evaluated OmniSky and Palm.net services across two distinct academic medical centers.
  • Assessed device electromagnetic interference with hospital equipment by the Johns Hopkins Clinical Devices Laboratory.

Main Results:

  • Connectivity varied significantly between hospitals and services.
  • One hospital showed 59% (OmniSky) and 78% (Palm.net) connectivity.
  • The second hospital achieved over 93% connectivity with both devices.
  • Connectivity differences were linked to room exposure, location, and transponder proximity.
  • Devices operated without causing electromagnetic interference.

Conclusions:

  • Wide-area wireless technology offers viable, though variable, connectivity within medical centers.
  • Hospital infrastructure and location significantly impact wireless network performance.
  • Wireless devices can be safely used in clinical settings without interfering with medical equipment.

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