The methods and apparatus of the present invention permit a stable body pocket to be formed utilizing multiple biocompatible sheets or using only a single biocompatible sheet positioned to create either a potential space or actual space stable body pocket. The sheets have one surface which permits...http://www.google.es/patents/US5759204?utm_source=gb-gplus-sharePatente US5759204 - Methods and apparatus for establishing a stable body pocket
Methods and apparatus for establishing a stable body pocket