CAVITY CREATOR WITH INTEGRAL CEMENT DELIVERY LUMEN
1 Assignment
0 Petitions
Accused Products
Abstract
A cavity creator including a tube with a lumen. A tip able to penetrate bone extends forward from the distal end of the tube. A blade is moveably attached to the outer tube proximal to the tip so as to move between retracted and extended states. The tube has a discharge port adjacent the blade. The tip is used to position the upper tube in bone. The blade is extended to form a cavity in the bone. Once the cavity is created filler material can be introduced into the cavity by flowing the material through the tube lumen.
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Citations
24 Claims
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1-3. -3. (canceled)
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4. A device for injecting cement into tissue, said device comprising:
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an access cannula having a lumen that extends longitudinally through an axis of said access cannula, opposed proximal and distal ends, and a discharge port that opens from said lumen adjacent said distal end of said access cannula; a fitting adjacent said proximal end of said access cannula for receiving a delivery device from which cement is injected into said access cannula lumen for discharge through said discharge port; a blade movably attached to said distal end of said access cannula so as to move between a retracted position in which said blade is proximal to said longitudinal axis of said access cannula and an extended position in which said blade is spaced from said longitudinal axis of said access cannula; a drive member that extends through said access cannula, said drive member being movable within said access cannula and connected to said blade for moving said blade between said retracted and extended positions; an actuator movably mounted to said access cannula and attached to said drive member for moving said drive member; and a tip that extends forward from said distal end of said access cannula, said tip configured to penetrate tissue. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for injecting cement into tissue, said device comprising:
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an access cannula having a lumen that extends along a longitudinal axis of said access cannula, opposed proximal and distal ends, a discharge port that opens from said lumen adjacent said distal end of said access cannula, and is adapted to connect to a delivery device from which cement is injected into said access cannula lumen for discharge through said discharge port; a blade pivotally attached to said distal end of said access cannula so as to move between a retracted position and an extended position; a cement cannula disposed in said access cannula lumen and that is movable relative to said access cannula, said cement cannula comprised of; a proximal end; a distal end positioned to engage said blade so as to move said blade between said retracted and extended positions; a lumen that extends forward from said proximal end; and a discharge port that opens from said lumen adjacent said distal end; an actuator movably mounted to said proximal end of said access cannula and attached to said cement cannula for moving said cement cannula; and a tip that extends forward from said distal end of said access cannula, said tip configured to penetrate tissue. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A device for delivering bone filler material into tissue, said device comprising:
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an access cannula having a proximal end and a distal end, a longitudinal axis, and a lumen extending along said longitudinal axis; a blade pivotally attached to said distal end of said access cannula so as to move between a retracted position and an extended position; a cement cannula slidably disposed in said access cannula lumen, said access cannula adapted to be connected to a delivery device containing said bone filler material and longitudinally translatable within said access cannula, said cement cannula having; a proximal end; a distal end positioned to engage said blade so as to move said blade between said retracted and extended positions; a lumen that extends forward from said proximal end; and a discharge port that opens from said lumen adjacent said distal end of said cement cannula; an actuator mounted to said proximal end of said access cannula and attached to said cement cannula for moving said cement cannula; and a tip attached to and extending forward from said distal end of said access cannula to move with said cement cannula, said tip configured to penetrate tissue. - View Dependent Claims (24)
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23. The device of claim 23, wherein said access cannula discharge port opens from a side surface of said access cannula, said cement cannula lumen opens from a side surface of said cement cannula, and said access cannula discharge port and said cement cannula discharge port are positioned so that:
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when said cement cannula is positioned so that said blade is in said retracted state, said cement cannula discharge port is substantially in registration with said access cannula discharge port; and when said cement cannula is moved so as to move said blade from said retracted stated, said cement cannula discharge port moves out of registration with said access cannula discharge port.
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Specification