Medical inserter tool with slaphammer
First Claim
1. An implant installation tool, comprising:
- a pair of opposed levers, each having a proximal portion and a distal portion;
a placement element disposed between the levers and effective to insert an implant between adjacent bone structures;
a mass slidably disposed with respect to at least a portion of the placement element and effective to be selectively reciprocated to apply a proximally directed force to the opposed levers.
1 Assignment
0 Petitions
Accused Products
Abstract
An installation tool is provided for the efficient and effective placement of an implant between adjacent bone structures, preferably adjacent vertebral bodies, and for the subsequent removal of the device without displacement of the implant. The installation tool generally includes a pair of opposed levers, a pusher assembly disposed between the levers, and an installation tool removing element having a mass slidably disposed with respect to at least a portion of the pusher assembly. The levers are effective to separate adjacent bone structures, such as adjacent vertebrae, upon insertion of an implant. The pusher assembly is slidably movable with respect to the levers, and is effective to insert an implant between the adjacent bone structures. Once the implant is positioned between the adjacent vertebrae, the mass can be used to apply a proximally directed force to the opposed levers, thereby removing the instrument from the space between the adjacent bone structures.
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Citations
42 Claims
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1. An implant installation tool, comprising:
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a pair of opposed levers, each having a proximal portion and a distal portion;
a placement element disposed between the levers and effective to insert an implant between adjacent bone structures;
a mass slidably disposed with respect to at least a portion of the placement element and effective to be selectively reciprocated to apply a proximally directed force to the opposed levers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A medical installation tool, comprising:
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an elongate body having a proximal portion and a distal portion, the distal portion having a member movable with respect to the elongate body and effective to selectively retain a prosthesis and selectively deploy the prosthesis between adjacent bone structures; and
a mass slidably mated to the elongate body, the mass being selectively moveable with respect to the elongate body such that it is effective to apply a proximally directed force to the elongate body. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
a substantially cylindrical body mated to and extending proximally from the fulcrum, the slidable mass being slidably mated to the substantially cylindrical body.
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21. The installation tool of claim 20, wherein the mass is movable between a first distal position and a second proximal position, and wherein movement of the mass from the first distal position to the second proximal position is effective to apply the force to the tool, the force being sufficient to move the opposed levers and fulcrum proximally with respect to the pusher block and pusher rod.
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22. The installation tool of claim 21, wherein the mass can be locked in the first distal position.
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23. The installation tool of claim 21, wherein the fulcrum and the cylindrical body each include a bore extending therethrough and adapted to slidably receive the pusher rod.
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24. The installation tool of claim 23, further comprising a longitudinally extending groove formed in and extending over a portion of the cylindrical body, and an engaging element protruding from a portion of the slidable mass and adapted to mate within the groove, the mating of the groove and the engaging element being effect to limit movement of the slidable mass between the first and second positions.
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25. The installation tool of claim 24, further comprising a locking element for locking the slidable mass in the first distal position.
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26. The installation tool of claim 23, further comprising a pusher block mated to the distal end of the rod and positioned between the two levers, the pusher block being selectively moveable between an initial location distal of the fulcrum and a final location adjacent the distal end of the levers.
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27. The installation tool of claim 26, wherein the pusher block includes upper and lower recesses, each recess being adapted to seat one of the levers.
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28. The installation tool of claim 27, wherein the pusher block includes an implant seating region adapted to receive an implant.
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29. The installation tool of claim 28, wherein the pusher block is movable between an initial position and a final position, and wherein the pusher block is effective to separate the levers when advanced from the initial position to the final position.
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30. An implant insertion tool, comprising:
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a body having a central bore extending therethrough and a pair of opposed elongate levers extending distally therefrom;
a pusher rod positioned between the levers; and
a slidable weight having an inner lumen formed therein and being slidably mated to a portion of the body, the slidable weight being adapted to impact a proximal portion of the tool when moved proximally, thus creating a proximally directed force that acts on the tool. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. A medical device for inserting an implant between adjacent bone structures, comprising:
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a body defining a central axis and having a bore extending through the central axis;
a pair of opposed levers pivotably mated to the body and extending distally from the body, the opposed levers being effective to separate adjacent bone structures;
an elongate rod positioned between the opposed levers and being slidably disposed through the bore of the body, the elongate rod being adapted to insert an implant between adjacent bone structures; and
a mass having an inner lumen formed therein and being slidably disposed around a portion of the body, the mass being movable between a distal position and a proximal position, wherein movement of the mass in a proximal direction is effective to generate a proximally directed force that is effective to move the body and the opposed levers proximally with respect to the elongate rod. - View Dependent Claims (40, 41, 42)
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Specification