YY/T 1477.3-2016Standard test models for primary wound dressing performance evaluation - Part 3: In vitro wound model for fluid handling properties evaluation (English PDF)

3.1 Liquid control performance fluidhandlingproperties

The ability of the dressing to absorb the liquid and through the water vapor.

4.1 Meaning

For wound dressings suitable for use in hyperosmotic effusion wounds, there is good water vapor permeability while having good liquid absorbency Very important. If the exudate absorbed by the dressing can not be exposed in time, the absorbed liquid will accumulate in the dressing for a long time, thereby damaging the wound And the integrity of the surrounding skin.

This test model is based on this as the starting point, the establishment of a can assess the level of position and wound, but also the evaluation of the vertical position of the liquid In vitro model of controlled performance, from the absorption of liquid and through the two aspects of water vapor in the comprehensive evaluation of dressing in the case of high bleeding effusion Liquid control of liquid.

4.2 Test system

Dressing liquid-controlled in vitro wound model test system shown in Figure 1, mainly by the ground simulation fluid to the liquid device (such as electronic pump), the wound Test equipment, electronic balance, temperature and humidity control devices and other components. The cremator simulates the liquid supply device at a rate to the continuous dressing liquid Control performance test model infusion simulation fluid. In the dressing liquid control performance test model, the dressing will absorb part of the simulated liquid side while evaporating