Devices and techniques for a posterior lateral disc space approach
First Claim
Patent Images
1. An instrument for inserting a spinal implant, comprising:
- a proximal portion including a handle and a shaft extending distally from said handle along a first axis; and
an implant engaging portion at a distal end of said shaft, said implant engaging portion having a first member and a second member extending along a second axis that is obliquely oriented to said first axis, said second member movable in a direction of said second axis and along said first member from a first position wherein the spinal implant is insertable between said first and second members to a second position wherein said first member and said second member engage the spinal implant therebetween.
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Abstract
This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments include an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support of the adjacent vertebrae when inserted into the disc space from a postero-lateral approach.
230 Citations
40 Claims
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1. An instrument for inserting a spinal implant, comprising:
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a proximal portion including a handle and a shaft extending distally from said handle along a first axis; and an implant engaging portion at a distal end of said shaft, said implant engaging portion having a first member and a second member extending along a second axis that is obliquely oriented to said first axis, said second member movable in a direction of said second axis and along said first member from a first position wherein the spinal implant is insertable between said first and second members to a second position wherein said first member and said second member engage the spinal implant therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An instrument for inserting a spinal implant, comprising:
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a proximal portion including a handle and a shaft extending distally from said handle; an implant engaging portion at a distal end of said shaft, said implant engaging portion having a first member and a second member, said second member movable along said first member from a first position wherein said spinal implant is insertable between said first and second members to a second position wherein said first member and said second member engage the implant therebetween, wherein; said shaft includes an inner shaft movably positioned therein, said inner shaft including a first extension, a second extension and a slot between said first extension and said second extension; and said implant engaging portion includes a shaft engaging portion at a proximal end thereof, said shaft engaging portion including a first receptacle engaging said first extension with said proximal portion in a first position relative to said implant engaging portion, said shaft engaging portion including a second receptacle engaging said second extension with said proximal portion pivoted to a second position relative to said implant engaging portion. - View Dependent Claims (18, 19)
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20. An instrument for inserting a spinal implant in a disc space, comprising:
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a proximal portion including a handle and a shaft extending distally from said handle along a first axis; and an implant engaging portion at a distal end of said shaft and extending distally from said shaft along a second axis, said implant engaging portion engageable to the spinal implant, said proximal portion engageable to said implant engaging portion in a first position wherein said first axis and said second axis form an included angle of less than 180 degrees for inserting the spinal implant in the disc space, said proximal portion movable relative to said implant engaging portion and engageable to said implant engaging portion in a second position wherein said included angle between said first axis and said second axis is greater than 180 degrees for inserting the spinal implant in the disc space. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An instrument for inserting a spinal implant in a disc space, comprising:
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a proximal portion including a handle and a shaft extending distally from said handle; an implant engaging portion at a distal end of said shaft, said implant engaging portion engageable to the spinal implant, said proximal portion engageable to said implant engaging portion in a first position for inserting the spinal implant in the disc space, said proximal portion movable relative to said implant engaging portion and engageable to said implant engaging portion in a second position for inserting the spinal implant in the disc space, wherein; said shaft includes an inner shaft movably positioned therein, said inner shaft including a first extension, a second extension and a slot between said first extension and said second extension; and said implant engaging portion including a shaft engaging portion, said shaft engaging portion including a first receptacle engaging said first extension with said proximal portion in said first position, said shaft engaging portion including a second receptacle engaging said second extension with said proximal portion in said second position. - View Dependent Claims (32, 33)
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34. An instrument for inserting a spinal implant in a disc space, comprising:
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a proximal portion including a handle and shaft extending distally from said handle; and an implant engaging portion at a distal end of said shaft, said implant engaging portion engageable to the spinal implant; and an alignment instrument engaged to said handle of said proximal portion, said alignment instrument including an extension member extending transversely to said handle along a length to an alignment member, said alignment member extending transversely to said extension member and toward said implant engaging portion, wherein said length is sized to align said alignment member with a reference point on the spinal implant when the spinal implant is engaged between said first and second members. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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Specification