Three-dimensional porous film contact layer with improved wound healing

摘要

A wound dressing has a micro-architecture to produce appropriate strains in cells to promote the healing a wound. The apparatus includes a wound cover for defining a reservoir over a wound in which a negative pressure may be maintained by forming a substantially fluid-tight seal around the wound, a vacuum source in fluid communication with the reservoir and suitable for providing an appropriate negative pressure to the reservoir to stimulate healing of the wound, and a porous structure positioned in contact with the wound for delivering micro-mechanical forces to localized areas of the wound. The porous structure comprises a three-dimensional film material having directional apertures formed therein.

主权项

1. A therapeutic apparatus to promote healing of a wound comprising:
a wound cover for defining a reservoir over a wound in which a negative pressure may be maintained by forming a substantially fluid-tight seal around the wound; a vacuum source in fluid communication with the reservoir, the vacuum source suitable for providing an appropriate negative pressure to the reservoir to stimulate healing of the wound; a three-dimensional film material in contact with the wound, the three dimensional film material having a plurality of tapered passages defined between a male face and an opposite female face thereof, each of the tapered passages including an apex oriented on the male face that is narrower than a base oriented on the female face, wherein the three-dimensional film material is positioned such that the male face is in contact with the wound.