Devices for limiting the movement of flowable material introduced into or between tissue layers of the human spine. The devices can include at least one generally elongated member having a pre-deployed configuration for insertion into or between tissue layers of the human spine and a deployed configuration...http://www.google.es/patents/US7967865?utm_source=gb-gplus-sharePatente US7967865 - Devices for limiting the movement of material introduced between layers of spinal tissue
Devices for limiting the movement of material introduced between layers of ...