Pressure & Contact Duration Indicators

ADD invented soft colour-developing materials that can be applied pairwise to irreversibly generate a chosen colour at contact points.

This technology has been applied in a pressure duration indicating patch for the prevention of pressure sores.


PressurePoint® is a light, thin, flexible, breathable, adhesive patch for use under bony prominences including the heels, sacrum and shoulder blades.


The PressurePoint® patch indicates the duration for which these sites have been loaded above a pressure safety threshold: the longer the loading duration, the more intense the colour of the patch, and the greater the risk of pressure ulcer development in any individual.


This device is a tool to increase pressure awareness in individuals and their carers and can be used to improve and amend existing off-loading strategies.

PressurePoint flyer.pdf
Adobe Acrobat document [200.1 KB]