IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0329195
(2008-12-05)
|
등록번호 |
US-8623088
(2014-01-07)
|
발명자
/ 주소 |
- Tohmeh, Antoine G.
- Clark, Joseph
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
300 |
초록
▼
A spinal fusion implant of non-bone construction to be introduced into any variety of spinal target sites. The spinal fusion implant of the present invention includes a top surface, a bottom surface, first and second lateral sides, a proximal (posterior) end and a distal (anterior) end. The spinal f
A spinal fusion implant of non-bone construction to be introduced into any variety of spinal target sites. The spinal fusion implant of the present invention includes a top surface, a bottom surface, first and second lateral sides, a proximal (posterior) end and a distal (anterior) end. The spinal fusion implant of the present invention may be used to provide temporary or permanent fixation within an orthopedic target site. To do so, the spinal fusion implant may be introduced into a disc space while locked to a surgical insertion instrument and thereafter employed in the proper orientation and released. Once deposited in the disc space, the spinal fusion implant of the present invention effects spinal fusion over time as the natural healing process integrates and binds the implant.
대표청구항
▼
1. A spinal fusion implant for insertion between first and second vertebral bodies, each vertebral body having a cancellous bone interior bounded by a cortical bone exterior wall, each vertebral body having a generously curved anterior portion and slightly curved posterior portion, said posterior po
1. A spinal fusion implant for insertion between first and second vertebral bodies, each vertebral body having a cancellous bone interior bounded by a cortical bone exterior wall, each vertebral body having a generously curved anterior portion and slightly curved posterior portion, said posterior portion adjacent to a spinal canal, said spinal fusion implant comprising: an article having opposing first and second engagement sides, a central aperture extending through said first and second engagement sides, opposing first and second lateral sides, a lateral channel disposed along each of said first and second lateral sides, a proximal end, an distal end, a width between said opposing first and second lateral sides, and a length between said proximal end and distal end, a first height between said opposing first and second engagement sides at said distal end and at said first lateral side, a second height between opposing first and second engagement sides at said distal end and at said second lateral side, a third height at said proximal end and said first lateral side and a fourth height at said proximal end and at said second lateral side, wherein at least one of said first and second engagement sides is tapered between said distal and proximal ends along a direction oblique to said implant length and oblique to said implant width such that said first height is greater than said second height, said second height is greater than said third height and said third height is greater than said fourth height, wherein said first and second lateral sides are generally planar and said first lateral side has a greater length than the second lateral side, and further wherein said central aperture spans at least half of distance of said length. 2. The spinal fusion implant of claim 1, wherein said distal end is adapted to extend between said cortical walls of said anterior portions of said first and second vertebral bodies. 3. The spinal fusion implant of claim 1, wherein at least one of said proximal and distal ends is provided with at least one radiographic marker. 4. The spinal fusion implant of claim 1, wherein at least one of said first and second engagement sides is provided with an anti-migration feature. 5. The spinal fusion implant of claim 4, wherein said anti-migration feature comprises a plurality of ridges. 6. The spinal fusion implant of claim 1, wherein said taper is measured at an angle of 5 degrees. 7. The spinal fusion implant of claim 1, wherein said first and second engagement sides are at least one of generally planar, generally convex and generally concave. 8. The spinal fusion implant of claim 1, further comprising at least one lateral aperture extending through said implant between said first and second lateral sides. 9. The spinal fusion implant of claim 1, wherein said distal end comprises a first tapered surface extending between said distal end and said first lateral side and a second tapered surface extending between said distal end and said second lateral side. 10. The spinal fusion implant of claim 9, wherein said distal end comprises a third tapered surface extending between said distal end and said first engagement side and a fourth tapered surface extending between said distal end and said second engagement side. 11. The spinal fusion implant of claim 1, wherein said implant is made of at least one of poly-ether-ether-ketone, poly-ether-ketone-ketone, ceramic, metal and any combination of poly-ether-ether-ether-ketone, poly-ether-ketone-ketone, ceramic and metal.
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