Wound-care company Applied Tissue Technologies said it has won FDA clearance of its negative-pressure wound therapy product, the Platform Wound Dressing (PWD). The class II device represents the first-of-its-kind embossed negative pressure wound therapy device to be used without foam or gauze, according to the Hingham, Mass. company.
The PWD is a transparent dressing with an integral adhesive base and a permanently embossed, impermeable membrane that combines the traditional functions of the negative-pressure wound therapy membrane and foam/gauze in currently marketed negative-pressure devices. When the negative-pressure pump is switched on, the embossed membrane is pulled into direct contact with all geometries of the wound, eliminating the need for foam or gauze. The space created between the embossments provides primary channels for air and fluid, while folds in the membrane create secondary channels that provide an even distribution of negative pressure across the wound.