An investigation of laboratory test methods for predicting the in-use leakage performance of urine-absorbing aids in nursing homes

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Alan Cottenden, Margaret Macaulay

Abstract

The absorption before leakage method for measuring the absorption capacity of urine-absorbing aids was investigated. Along with the existing international standard (ISO 11948-1:1996, the Rothwell method), it was run on 12 experimental products whose in-use leakage performance was established by 55 incontinent nursing home residents. Methods were evaluated by considering their simplicity, their repeatability within - and their reproducibility between - six laboratories, and their correlation with in-use product performance. ISO 11948-1:1996 - which measures the absorption capacity of products under simple conditions - showed good repeatability and reproducibility, and reasonable correlation with in-use data. However, it proved blind to the effects of leg cuffs that conferred measurable benefits in real use. It should, therefore, be used with caution. The absorption before leakage method - which measures how much a product will hold before leakage when it is mounted on a manikin and standard aliquots of liquid are applied - is more complex and had poorer repeatability and reproducibility. However, it had stronger correlations with in-use data and successfully detected the benefits of leg cuffs on insert products. It is concluded ...Continue Reading

References

May 1, 1993·Journal of Biomedical Engineering·A M Cottenden, D J Ledger
Jun 13, 2008·Health Technology Assessment : HTA·M FaderJ Malone-Lee
Mar 4, 2009·Enfermedades infecciosas y microbiología clínica·Fernando de Ory, Teodora Minguito
Jan 18, 2011·Water Research·Steve PetrovskiRobert J Seviour

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