A tissue separation apparatus is disclosed. The apparatus can have a separating member that has a contracted state and an expanded state. When the separating member is placed between first and second tissue layers, the separating member can part the first tissue layer from the second tissue layer. The...http://www.google.fr/patents/US20060206125?utm_source=gb-gplus-shareBrevet US20060206125 - Tissue separation apparatus and method
