Wound closure systems and methods are provided, containing a porous layer
comprising a collagen material; a substantially non-porous synthetic
layer contacting the porous layer, the porous layer and substantially
non-porous layer capable of providing wound closure; and a transcutaneous
component contacting the porous layer and the substantially non-porous
synthetic layer. In various embodiments, the transcutaneous component is
capable of receiving a cannula, glucose sensor, electrode, prosthesis,
chest tube, medical instrument or bone, muscle, blood vessels, nerve,
organ or combination thereof.