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Device Research

Indurometry/Tonometry

FFlinders Medical Centre Biomedical Engineering works with clinicians and researchers at Flinders University and Flinders Medical Centre, to investigate instruments for objectively assessing the softness/hardness/fluidity of material.

 

Indurometers measure the resistance of material to indentation (compression). Material that may be tested includes foam (mattresses), fruit and gels (breast implants, bicycle seats, etc).

Like many soft materials, living tissue lends itself to measurement with indurometers (although indurometers are not dedicated for use on tissue). Other researchers have trialled Indurometers for objectively measuring the response of tissue to thumb pressure, and for the assessment of scar formation after burns and for assessing the progression of sclerosis.

 

The term tonometry has sometimes been used (inaccurately) to describe a measure of indentation or hardness, however tonometry is actually a measure of tension or pressure. The term Indurometer has been used here to better describe the measure of hardness/softness.

 

Indurometers
Lymphoedema
Burns
Sclerosis
History

 

Indurometer/tonometer
comparison chart (large)

 

Indurometer comparison chart

 

Electronic indurometer

 

Electronic indurometer

 

 

The original mechanical tonometer

 

Mechanical tonometer

 

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