Implant insertion apparatus and method of use
First Claim
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1. An apparatus for use with a spinal implant, comprising:
- a handle structure having a longitudinal axis and a passage;
a shaft movable within the passage and at least a portion having a first screw thread;
a pusher block operably connected to the shaft and having a forward surface configured to engage the spinal implant; and
a clutch member supported on the handle structure for movement into and out of engagement with the first screw thread of the shaft.
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Abstract
An apparatus for use with a spinal implant includes a handle structure with a passage. A shaft with a screw thread is moveable within the passage in the handle structure. A pusher block is linked to the shaft, and has a forward surface configured to engage the spinal implant. A screw-threaded clutch member is supported on the handle structure for movement into and out of engagement with the screw thread on the shaft.
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Citations
31 Claims
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1. An apparatus for use with a spinal implant, comprising:
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a handle structure having a longitudinal axis and a passage;
a shaft movable within the passage and at least a portion having a first screw thread;
a pusher block operably connected to the shaft and having a forward surface configured to engage the spinal implant; and
a clutch member supported on the handle structure for movement into and out of engagement with the first screw thread of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for use with a spinal implant, comprising:
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a handle structure having a passage therethrough;
a shaft moveable within the passage, at least a portion of the shaft comprising screw threads;
a pair of paddles having a proximal end and a distal end, the proximal end of the paddles being operably connected to the handle structure, wherein at least one of the pair of paddles has a slot;
a pusher block moveable with the shaft and linked to the shaft, the pusher block having a forward surface configured to engage the spinal implant; and
an ejector rod having at least one arm, wherein the ejector rod is operably connected to the pusher block, the at least one arm being moveable in the slot between the distal and proximal ends of at least one paddle;
wherein the handle has an internal thread and the shaft has at least a portion having a first screw thread spaced from the internal thread such that the shaft slides axially through a first range of movement in the passage, and at least a different portion of the shaft having a second screw thread, the second screw thread moveable into engagement with the internal thread such that the shaft is only rotated through a second range of movement in the passage. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An apparatus for inserting an implant comprising:
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a handle structure having a longitudinal axis, a first end, a second end and a passage therethrough;
a shaft moveable within the passage and projecting from the first and second ends of the handle;
a pusher block linked to the shaft and having a forward surface configured to engage the implant; and
a clutch mechanism supported on the handle structure for movement between a first position, wherein the shaft is capable of sliding within the handle parallel to the longitudinal axis, and a second position, wherein the shaft is capable of moving within the handle in a second manner different than longitudinal movement. - View Dependent Claims (22)
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23. An apparatus for use with a spinal implant, comprising:
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a handle structure having a passage;
a pair of paddles each having proximal and distal ends, the proximal ends of the paddles operably connected to the handle structure, the paddles configured such that the distal ends are biased together;
a shaft movable within the passage and through the proximal ends of the paddles, at least a portion of the shaft having a screw thread;
a pusher block operably connected to the shaft and having a forward surface configured to engage the spinal implant; and
an ejector rod operably connected and disengageable from the pusher block. - View Dependent Claims (24, 25)
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26. A method of inserting an implant between adjacent vertebrae comprising:
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providing an implant inserter comprising;
a handle structure having a longitudinal axis and a passage;
a pair of paddles extending from the handle, the paddles having a distal end and a proximal end;
a shaft movable within the passage and at least a portion having a first threaded portion;
a pusher block operably connected to the shaft and having a forward surface configured to engage the spinal implant; and
a clutch member, at least a portion of which has screw threads for selectively engaging the threaded portion of the shaft;
inserting an implant against the pusher block and in between the paddles;
inserting the distal ends of the paddles in between adjacent vertebrae;
moving the shaft through the passage of the handle such that the implant moves towards the distal end of the paddles and spreads the paddles apart; and
withdrawing the paddles from in between adjacent vertebrae. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification