Implants and methods for spinal fusion
First Claim
1. A spinal fusion implant positionable within an interbody space between a first vertebral endplate and a second vertebral endplate, said interbody space being at least partially defined by a posterior aspect, and anterior aspect, and opposing lateral aspects, said implant comprising:
- a body with a top surface to engage said first vertebral endplate when said implant is positioned within the interbody space, a bottom surface to engage said second vertebral endplate when said implant is positioned within the interbody space, a distal side, a proximal side, a first side wall defining an anterior side when said implant is positioned within the interbody space, and a second side wall defining a posterior side when said implant is positioned within the interbody space, said implant body having a length extending from said proximal side to said distal side, a width extending from said first side wall to said second side wall, and a height extending from said top surface to said bottom surface, said length being dimensioned so as to extend between said lateral aspects of said interbody space when said implant body is positioned within the interbody space and is greater than said width and at least 30 mm, said width being greater than said height, said implant body further including at least one fusion aperture that extends between the top and bottom surfaces and permits bone growth between the first vertebral endplate and the second vertebral endplate when said implant body is positioned within the interbody space, said implant body further including an upper guide path opening along at least a portion of the top surface for slidably receiving an upper vertebral body penetration member and a lower guide path opening along at least a portion of the bottom surface; and
an upper penetration structure slidably positionable along the upper guide path and extending above the top surface such that the upper penetration structure extends through the first vertebral endplate when said implant is positioned within the interbody space, and a lower penetration structure slidably positionable along the lower guide path and extending below the bottom surface such that the lower penetration structure extends through the second vertebral endplate when said implant is positioned within the interbody space.
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Accused Products
Abstract
An implant is provided for performing spinal fusion. The implant includes an implant body having a leading side and a trailing side at opposing ends along a longitudinal axis. Between the leading side and trailing side are an upper surface, a lower surface, an anterior side, and a posterior side. At least one keel structure is provided extending from the implant body for penetration into an adjacent vertebral body. A trial sizer and keel cutter may be utilized to form keel channels within the vertebral body to receive the keel structure.
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Citations
20 Claims
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1. A spinal fusion implant positionable within an interbody space between a first vertebral endplate and a second vertebral endplate, said interbody space being at least partially defined by a posterior aspect, and anterior aspect, and opposing lateral aspects, said implant comprising:
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a body with a top surface to engage said first vertebral endplate when said implant is positioned within the interbody space, a bottom surface to engage said second vertebral endplate when said implant is positioned within the interbody space, a distal side, a proximal side, a first side wall defining an anterior side when said implant is positioned within the interbody space, and a second side wall defining a posterior side when said implant is positioned within the interbody space, said implant body having a length extending from said proximal side to said distal side, a width extending from said first side wall to said second side wall, and a height extending from said top surface to said bottom surface, said length being dimensioned so as to extend between said lateral aspects of said interbody space when said implant body is positioned within the interbody space and is greater than said width and at least 30 mm, said width being greater than said height, said implant body further including at least one fusion aperture that extends between the top and bottom surfaces and permits bone growth between the first vertebral endplate and the second vertebral endplate when said implant body is positioned within the interbody space, said implant body further including an upper guide path opening along at least a portion of the top surface for slidably receiving an upper vertebral body penetration member and a lower guide path opening along at least a portion of the bottom surface; and an upper penetration structure slidably positionable along the upper guide path and extending above the top surface such that the upper penetration structure extends through the first vertebral endplate when said implant is positioned within the interbody space, and a lower penetration structure slidably positionable along the lower guide path and extending below the bottom surface such that the lower penetration structure extends through the second vertebral endplate when said implant is positioned within the interbody space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification