Stryker Corporation
Methods Of Delivering Bone Cement Using An Access Cannula With Valve

Abstract:

Methods of delivering bone cement to within a vertebral body. An access cannula is directed into the vertebral body with a stylet disposed within a tube and extending through a valve in an open position. The stylet is removed from the access cannula such that the valve moves from the open position to a closed position in which the valve prevents egress of fluid from the access cannula. The bone cement is delivered through the access cannula with the valve in the open position. A delivery cannula may be directed into the access cannula, and the bone cement may be delivered through the delivery cannula. The delivery cannula may be prefilled with the bone cement. A bone cement mixer may be coupled to the access cannula and operated to direct the bone cement through the access cannula. Pressure from the bone cement may move the valve to the open position.