APPARATUS FOR DELIVERING COMPOUNDS INTO VERTEBRAE FOR VERTEBROPLASTY

摘要

An apparatus (10) for delivering bone cement into a vertebra includes a cannula (12) and a syringe (50) pivotally coupled to the cannula. Preferably , the syringe is pivotally coupled to the cannula by a pivot fitting that may be detachable from one or both of the cannula and the syringe. The syringe includes a piston (64) slidable in a barrel (52) for advancing the bone ceme nt through an outlet (60) communicating with the cannula. A shaft (68) and cabl e (74) arrangement or a fluid-driven system may be used to advance the piston within the syringe. The cannula is inserted into a vertebra, and is connecte d to the syringe. The syringe is pivoted to a desired position, and bone cemen t is delivered from the syringe through the cannula and into the vertebra.