A membrane for implantation in soft tissue comprising a first domain that supports tissue ingrowth, disrupts contractile forces typically found in a foreign body response, encourages vascularity, and interferes with barrier cell layer formation, and a second domain that is resistant to cellular attachment,...http://www.google.com.au/patents/US7192450?utm_source=gb-gplus-sharePatent US7192450 - Porous membranes for use with implantable devices
