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A wireless biomedical handheld instrument for evidence-based detection of pressure ulcers

Published: 10 October 2011 Publication History

Abstract

Pressure Ulcer (PU) incidence leads to considerable risk, in particular for the frail elderly, and a large national healthcare treatment cost. Evidence-based methods for assuring the health and safety of patients are urgently needed. Recent clinical trials have demonstrated that sub-epidermal moisture (SEM) present in tissue may be measured by interrogation of tissue dielectric properties and are associated with the presence of erythema and development of early stage PU conditions. A novel wireless handheld device has been developed and will be demonstrated that introduces a series of advances including automated measurement, automated measurement method assurance including application of proper measurement applied pressure, and wireless energy recharge capability. This advances previous successful prototype development to now include a complete point-of-care usage product. This device, termed the SEM Scanner, was successfully verified in trials with 30 subjects and is currently deployed in large clinical trials in nursing homes in Los Angeles. This manuscript and the planned demonstration describe a set of significant technology advances over previous technology based on both new Wireless Health hardware and software system solutions. In addition to the demonstration to be provided of a novel end-to-end system including data acquisition, data archiving, reporting, and compliance verification, data from trials will also be presented.

References

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Berlowitz DR, Bezerra HQ, Brandeis GH et al. Are we improving the quality of nursing home care: The case of pressure ulcers. Journal of the American Geriatrics Society 2000; 48:59--62.
[2]
Pressure ulcers in adults: Prediction and prevention. In Clinical Practice Guideline--Quick Reference Guide for Clinicians, Agency for Health Care Policy and Research (Rockville, Md: US Department of Health and Human Services, 1992) 1--15.
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Lyder, C. H., et al., P. 2001. Quality of care for hospitalized Medicare patients at risk for pressure ulcers. Archives of Internal Medicine 161 (June 25, 2001), 1549--1554.
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Jiricka, M. K., et al., Pressure ulcer risk factors in an ICU population. American Journal of Critical Care 4 (September 1995), 361--367.
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Sewchuk, D., et al. Prevention and early detection of pressure ulcers in patients undergoing cardiac surgery. AORN Journal (July 2006).
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Robinson C, et al., "Determining the efficacy of a pressure ulcer prevention program by collecting prevalence and incidence data: A unit-based effort," Wound Management. May 2003; 49(5):44--51.
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Bates-Jensen, B. M., McCreath, H. E., et al., Sub-Epidermal Moisture Predicts Erythema and Stage I Pressure Ulcers in Nursing Home Residents: A Pilot Study. Journal of the American Geriatrics Society, 2007; 55:1199--1205.
[8]
F. Wang, Y. Lam, A. Mehrnia, B. Bates-Jensen, M. Sarrafzadeh, and W. J. Kaiser. 2010. A wireless biomedical instrument for evidence based tissue wound characterization. In Wireless Health 2010 (WH '10). ACM, Oct 2010

Cited By

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  • (2012)Wearable sensor for continuously vigilant spatial and depth-resolved perfusion imagingProceedings of the conference on Wireless Health10.1145/2448096.2448111(1-2)Online publication date: 23-Oct-2012

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cover image ACM Other conferences
WH '11: Proceedings of the 2nd Conference on Wireless Health
October 2011
170 pages
ISBN:9781450309820
DOI:10.1145/2077546

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  • University of California: University of California

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 10 October 2011

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Author Tags

  1. biomedical instrument
  2. capacitive sensing
  3. pressure ulcer
  4. sub-epidermal moisture
  5. wireless
  6. wound characterization

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  • Demonstration

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WH '11
Sponsor:
  • University of California
WH '11: Wireless Health 2011
October 10 - 13, 2011
California, San Diego

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Overall Acceptance Rate 35 of 139 submissions, 25%

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Cited By

View all
  • (2012)Wearable sensor for continuously vigilant spatial and depth-resolved perfusion imagingProceedings of the conference on Wireless Health10.1145/2448096.2448111(1-2)Online publication date: 23-Oct-2012

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