Fller and administration device for forming a supportive structure in a bone cavity
A dry free-flowing filler forming support structures in bone cavities (4a) comprises a number of biocompatible support bodies (2) resistant to breakage or deformation under normal physiological conditions, the bodies (2) being of size 2-10 mm and having two opposing abutments (2g) in the axis (A). Independent claims are also included for (A) a device (5) for introducing the above filler including a channel (6) containing a sequence of bodies (2) oriented in the direction of axis (A) and a pressing device (9) with a plunger (9c) moving to force bodies (2) into the bone cavity (4a); (B) a process for introducing the non-spherical bodies (2) sequentially and in direction (A) into cavity (4a) such that the bodies are randomly oriented in the cavity or, especially in the case of vertebrae, such that the bodies are randomly wedged in contact with the bone tissue; and (C) a system for fixing and further widening partly broken vertebrae comprising a number of the above bodies (2) and an introducing device as in (a) above.