Bilayer Wound Matrix.
TheraGenesis Bilayer Wound Matrix is a collagen-based wound dressing that consists of two layers: a porcine tendon-derived atelocollagen sponge layer and a silicone film layer. It contains a non-adhesive gauze (TREX™) to reinforce the silicone film. The meshed type has slits to aid in the drainage of exudate. The biodegradable collagen matrix provides a scaffold for cellular invasion and capillary growth.