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US 7,025,771 B2Granted
Tool to direct bone replacement material
AssigneeSpineology Inc.
InventorsStephen D. Kuslich, Francis Peterson, James W. Ahern
Life of this patent
Estimating the term…
Abstract
A fill tool for directing bone replacement material into an expandable bag within a reamed out disc includes a deflector at its distal end which deflects the flow of such material to a one or more side openings at the distal end of the fill tool. This allows the tool to be used without being ejected when filling the bag under pressure and greatly increases the distraction forces possible when filling the bag.
Claims16
A system for filling a bone cavity comprising:
- a fill container, the fill container comprising a wall the wall defining a fill apace;
- a predetermined quantity of bone replacement material;
- and
- a tool for directing the bone replacement material into the fill space, the tool comprising:
- a) an elongated hollow tube having a proximal and a distal end, said proximal end being adapted for attachment to a source of the bone replacement material wider pressure;
- and
- b) said distal end including at least one deflector opening for deflecting the bone replacement material out of said tube and into the fill space at an angle relative to a longitudinal axis of said tube, each said at least one deflector opening having a length of between about 1 D to 3 D, wherein D is the internal diameter of said tube, the distal end comprising a tip, the tip having a tapered shape.
4 more elements
A tool for directing bone replacement material into a defined space comprising:
- a) an elongated hollow tube having a proximal and a distal end, said proximal end being adapted for attachment to a source of bone replacement material under pressure;
- and
- b) said distal end including at least one deflector opening for deflecting bone replacement material out of said tube at an angle relative to a longitudinal axis of said tube, each said at least one deflector opening having a length of between about 1 D to 3 D, wherein D is the internal diameter of said tube.
Dependencies are inferred from the claim text.