Principles of Pressure

The pressure is formed in via the relation of the circumferences of the area that needs to be treated and the garment itself. The pressure is calculated based on Laplace’s Law (a principle of physics that the tension on the wall of a sphere is the product of the pressure times the radius of the chamber and the tension is inversely related to the thickness of the wall). The calculatory pressure might not duplicate itself fully on the living tissue due to the variation of it..

The pressure class is used to define the lowest and the highest pressures between which the real pressure will fall. In custom-made products the pressure class can be more specifically defined compared to standard sized products. This also allows the use of a greater pressure level more safely than in standard products. The real pressure provided by the garment can be measured with a pressure monitor when the garment is in use. The units used in pressure treatment are called mercury millimeters (mmHg). Lymed Skin™, Interim & Light™, Post-operation™ and Sense™ are built with even pressure as per needed treatment. Lymed Compression™ products are constructed with a progressive compression. The compression created can be divided to four compression classes (from A to IV). These compression classes are based on the European prestandard ENV 12718/2001. The pressure class is chosen based on the injury, diagnose or the area to be treated. In special cases it is possible to have different pressure levels as well as a combination of progressive and even pressure.

 

COMPRESSION CLASSES - PROGRESSIVE PRESSURE
Can be chosen for Lymed Compression™
A 10 - 14 mmHg
I 15 - 21 mmHg
II 23 - 32 mmHg
III 34 - 46 mmHg
IV < 49 mmHg

PRESSURE LEVELS -STANDARD EVEN PRESSURE
Used in product ranges:
Skin™ 23 - 30 mmHg
Interim & Light™ 10 - 18 mmHg*
Post-operation™ 23 - 30 mmHg*
Sense™ 10 - 30 mmHg**

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Paediatric Physiotherapist  Kilkenny Paediatric Physiotherapy | Kids Therapy Solutions | County Kilkenny