Distractor for use in spinal surgery
First Claim
Patent Images
1. A method of restoring disc height between adjacent vertebrae of a patient, the method comprising:
- inserting a cannula through the skin and tissue of the patient to create a working channel to the disc space;
distracting the disc space to a disc space height with a distractor extending through the working channel into the disc space;
inserting an instrument through the working channel;
positioning a distal portion of the instrument adjacent a distal portion of the distractor in the disc space; and
performing a procedure in the disc space with the instrument.
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Accused Products
Abstract
Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.
241 Citations
9 Claims
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1. A method of restoring disc height between adjacent vertebrae of a patient, the method comprising:
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inserting a cannula through the skin and tissue of the patient to create a working channel to the disc space;
distracting the disc space to a disc space height with a distractor extending through the working channel into the disc space;
inserting an instrument through the working channel;
positioning a distal portion of the instrument adjacent a distal portion of the distractor in the disc space; and
performing a procedure in the disc space with the instrument. - View Dependent Claims (2, 3, 4, 5)
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6. A method of preparing a disc space for insertion of an implant between adjacent vertebral endplates of a patient, the method comprising:
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inserting a cannula through the skin and tissue of the patient to create a working channel to the disc space;
distracting the disc space to a disc space height by positioning a distractor in the disc space, the distractor being attached to a stem that extends through the working channel, the distractor including a body portion extending between a leading end and a trailing end, the body portion including an upper surface for contacting one of the adjacent vertebral endplate and an opposite lower surface for contacting the other of the adjacent vertebral endplates and opposite first and second sidewalls extending between the upper and lower surfaces; and
cutting the adjacent vertebral endplates to form an implant insertion location while maintaining distraction with the distractor. - View Dependent Claims (7, 8, 9)
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Specification