摘要:
A cannula is sized and configured to establish an access path through soft tissue to bone having a cancellous bone volume. A bone treatment tool is sized and configured to be introduced through the cannula into the cancellous bone volume. The bone treatment tool carries an operative structure that is capable of being enlarged in situ to contact a region of the cancellous bone volume. A nozzle is sized and configured to be introduced through the cannula into the cancellous bone volume. The nozzle includes a connector element that releasably couples to a dispenser of filling material to deliver filling material into the region of cancellous bone contacted by the operative structure.
摘要:
A percutaneous path is established into a selected bone, e.g., a vertebral body, having an interior volume occupied, at least in part, by cancellous bone. A first bone filling material is conveyed through the percutaneous path into a region of the cancellous bone. A second bone filling material is conveyed through the percutaneous path into the region. The second bone filling material is different than the first bone filling material.
摘要:
Cancellous bone is accessed through a subcutaneous access path in soft tissue. A cavity is formed in cancellous bone by a cavity forming tool that is advanced through the subcutaneous access path into cancellous bone and manipulated to form the cavity. A measured volume of bone filling material is delivered into the cavity through the subcutaneous access path by a nozzle having an interior bore defining an interior volume sized for containing bone filling material, which is advanced through the subcutaneous access path. A nested instrument is formed while clearing residual bone filling material from the interior bore by an auxiliary tool that can be manipulated independently of the nozzle, which is advanced through the interior bore of the nozzle.
摘要:
A cannula establishes a subcutaneous path into bone. A tamping instrument can be manipulated independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula. The tamping instrument includes at least one marking to visually gauge the advancement of a terminus of the tamping instrument relative to a distal end of the cannula.
摘要:
A cannula establishes a subcutaneous path into bone. The cannula includes at least one predetermined marking. A tamping instrument is advanced through the cannula to deliver material into the bone by grasping an enlarged handle portion formed on the tamping instrument. The advancement is visually gauged by observing at least one predetermined marking on the tamping instrument to determine a position of a terminus of the tamping instrument relative to a distal end of the cannula.
摘要:
A cannula establishes a subcutaneous path into bone. The cannula includes at least one radiopaque marker. A tamping instrument having a tamping terminus is sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula.
摘要:
A cannula establishes a subcutaneous path into bone. A tamping instrument having a tamping terminus is sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula.
摘要:
A method and apparatus for filling a cavity in a patient's body with a material are provided. The apparatus can include a flexible tube, a barrel and a plunger. The flexible tube has a first end, a second end, and a lumen extending from the first end to the second end and operable to hold a material for conveyance through the first end into a cavity. The barrel is in fluid communication with the second end of the flexible tube and includes a lumen configured to receive material for delivery into the flexible tube. The plunger is configured to advance material through the lumen in the barrel and into the flexible tube. In one implememtation, there is substantially a one to one ratio of advancement of the plunger to a volume of material advanced from the rigid first end of the flexible tube.
摘要:
A filler instrument comprises a first chamber section having a first cross sectional area and a second chamber section having a second cross sectional area less than the first cross sectional area. The second chamber section communicates with the first chamber section. The first chamber section includes an inlet for receiving a material into the filler instrument, and the second chamber section includes an outlet for discharging the material from the filler instrument. A first plunger is sized to pass through the first chamber section and not the second chamber section. A second plunger is sized to pass through an interior bore of the first plunger and into the second chamber section. In use, the first plunger displaces material residing in the first chamber section through the second chamber section toward the outlet, and the second plunger displaces material residing in the second chamber section through the outlet.
摘要:
A cannula is positioned to establish a subcutaneous access path into a cancellous bone. A bone filling material is conveyed into the cancellous bone with a tamping instrument configured to be manipulated independent of the cannula. The bone filling material is compacted with the tamping instrument.