IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0709251
(2012-12-10)
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등록번호 |
US-8961564
(2015-02-24)
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발명자
/ 주소 |
- Gordon, Charles
- Yap, Marc C.
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
82 |
초록
▼
Systems, methods, and kits incorporate a fusion member for vertebral processes. The fusion member may be unitary or modular. The fusion member comprises extensions configured to be crimped to vertebral processes. The extensions may comprise tabs configured to be deformed to further penetrate the ver
Systems, methods, and kits incorporate a fusion member for vertebral processes. The fusion member may be unitary or modular. The fusion member comprises extensions configured to be crimped to vertebral processes. The extensions may comprise tabs configured to be deformed to further penetrate the vertebral processes. The tabs may also lock together modular components of the fusion member. The fusion member may comprise fasteners extending between the extensions. The fusion member may comprise a cage with a movable cover or a graft retention feature.
대표청구항
▼
1. An H-shaped fusion system comprising: a cage forming a cross bar of the H-shape, wherein the cage comprises a first opening extending from a first open end of the cage to a second open end of the cage opposite the first open end;first and second plates projecting from the cage, the first and seco
1. An H-shaped fusion system comprising: a cage forming a cross bar of the H-shape, wherein the cage comprises a first opening extending from a first open end of the cage to a second open end of the cage opposite the first open end;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape;a movable first cover over the first open end of the cage;wherein, when a first spinous process is received between the first and second plates and a second spinous process is received between the third and fourth plates, the first opening extends in an anterior-posterior direction;a first gripping member formed on the first plate, wherein the gripping member extends toward the second plate;a second gripping member formed on the second plate, wherein the gripping member extends toward the first plate;a third gripping member formed on the third plate, wherein the gripping member extends toward the fourth plate; anda fourth gripping member formed on the fourth plate, wherein the gripping member extends toward the third plate. 2. The fusion system of claim 1, wherein the first cover is movable between a closed position in which the first cover blocks the first open end of the cage, and an open position in which the first cover is displaced so that the first open end of the cage is accessible. 3. The fusion system of claim 1, wherein the system comprises a graft securing feature inside the cage. 4. The fusion system of claim 3, wherein the graft securing feature is selected from the group consisting of a notch, a pin, a hook, a spike, and a barb. 5. The fusion member of claim 1, wherein the first, second, third, and fourth gripping members angle toward the cage. 6. An H-shaped fusion system comprising: a cage forming a cross bar of the H-shape, wherein the cage comprises a first opening extending from a first open end of the cage to a second open end of the cage opposite the first open end;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape; anda movable first cover over the first open end of the cage;wherein, when a first spinous process is received between the first and second plates and a second spinous process is received between the third and fourth plates, the first opening extends in an anterior-posterior direction; and wherein the fusion system further comprises at least one tab integrally formed within each of the first, second, third, and fourth plates, respectively, wherein each tab is deformable from an undeformed state, in which the tab is parallel with the corresponding plate, to a deformed state, in which the tab protrudes from the corresponding plate. 7. The fusion system of claim 6, wherein the tabs are integral with the first, second, third, and fourth plates, respectively, along a first side of each tab, wherein a slit separates all remaining sides of each tab from the corresponding plate. 8. The fusion system of claim 7, wherein the slit is U-shaped. 9. The fusion system of claim 6, comprising: an undeformed state in which the first and second plates are spaced apart a first distance, the third and fourth plates are spaced apart a second distance, and the first tab is parallel to and flush with the at least one plate; anda deformed state in which the first and second plates are spaced apart a third distance, the third and fourth plates are spaced apart a fourth distance, and the first tab protrudes from the at least one plate, wherein the third distance is less than the first distance and the fourth distance is less than the second distance;wherein when the fusion member transforms from the undeformed state to the deformed state, the first, second, third, and fourth plates and the tab plastically deform. 10. The fusion member of claim 9, wherein, in the deformed state, the tab angles toward the cage. 11. The fusion member of claim 9, wherein, in the deformed state, the tab angles away from the cage. 12. The fusion member of claim 1, wherein the cage comprises a plurality of apertures. 13. The fusion member of claim 1, wherein each one of the first and second plates terminates with a recess opposite the cage, wherein each one of the third and fourth plates terminates with a projection opposite the cage, wherein the projection is complementary to the recess, with clearance. 14. The fusion member of claim 1, wherein the cage comprises a second opening extending beside the first opening, wherein the second opening extends from the first open end of the cage to the second open end of the cage, wherein the cage comprises a rib extending between the first and second openings and between the first and second open ends of the cage. 15. An H-shaped fusion member comprising: a cage forming a cross bar of the H-shape;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape;a graft securing feature inside the cage;a first gripping member formed on the first plate, wherein the gripping member extends toward a second plate;a second gripping member formed on the second plate, wherein the gripping member extends towards the first plate;a third gripping member formed on the third plate, wherein the gripping member extends toward the fourth plate; anda fourth gripping member formed on the fourth plate, wherein the gripping member extends towards the third plate;wherein the cage comprises a first opening extending from a first open end of the cage to a second open end of the cage opposite the first open end, wherein, when a first spinous process is pinched between the first and second plates and a second spinous process is pinched between the third and fourth plates, the first opening extends in an anterior-posterior direction. 16. The fusion member of claim 15, wherein the graft securing feature is selected from the group consisting of a notch, a pin, a hook, a spike, and a barb. 17. The fusion member of claim 15, wherein the cage comprises a plurality of apertures. 18. The fusion member of claim 15, wherein the first, second, third, and fourth gripping members angle toward the cage. 19. An H-shaped fusion member comprising: a cage forming a cross bar of the H-shape;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape; anda graft securing feature inside the cage, and wherein the fusion member further comprises at least one tab integrally formed within each of the first, second, third, and fourth plates, respectively, wherein each tab is deformable from an undeformed state, in which the tab is parallel with the corresponding plate, to a deformed sate, in which the tab protrudes from the corresponding plate;wherein the fusion member comprises an undeformed state in which the first and second plates are spaced apart a first distance, the third and fourth plates are spaced apart a second distance, and the first tab is parallel to and flush with the at least one plate;wherein the fusion member comprises a deformed state in which the first and second plates are spaced apart a third distance, the third and fourth plates are spaced apart a fourth distance, and the first tab protrudes from the at least one plate, wherein the third distance is less than the first distance and the fourth distance is less than the second distance;wherein, when the fusion member transforms from the undeformed state to the deformed state, the first, second, third, and fourth plates and the tab plastically deform; andwherein the cage comprises a second opening extending beside the first opening, wherein the second opening extends from the first open end of the cage to the second open end of the cage, wherein the cage comprises a rib extending between the first and second openings and between the first and second open ends of the cage. 20. The fusion member of claim 19, wherein the tabs are integral with the first, second, third, and fourth plates, respectively, along a first side of each tab, wherein a slit separates all remaining sides of each tab from the corresponding plate. 21. The fusion system of claim 20, wherein the slit is U-shaped. 22. The fusion member of claim 19, wherein, in the deformed state, the tab angles toward the cage. 23. The fusion member of claim 19, wherein, in the deformed state, the tab angles away from the cage. 24. An H-shaped fusion member comprising: a cage forming a cross bar of the H-shape;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape;a graft securing feature inside the cage;a first gripping member formed on the first plate, wherein the gripping member extends toward a second plate;a second gripping member formed on the second plate, wherein the gripping member extends towards the first plate;a third gripping member formed on the third plate, wherein the gripping member extends toward the fourth plate; anda fourth gripping member formed on the fourth plate, wherein the gripping member extends towards the third plate,wherein the cage comprises a first opening extending from a first open end of the cage to a second open end of the cage opposite the first open end, wherein, when a first spinous process is pinched between the first and second plates and a second spinous process is pinched between the third and fourth plates, the first opening extends in an anterior-posterior direction, and wherein the fusion member further comprises a movable first cover over the first open end of the cage. 25. The fusion system of claim 24, wherein the first cover is movable between a closed position in which the first cover blocks the first open end of the cage, and an open position in which the first cover is displaced so that the first open end of the cage is accessible. 26. An H-shaped fusion member comprising: a cage forming a cross bar of the H-shape;first and second plates projecting from the cage, the first and second plates forming a pair of ascending legs of the H-shape;third and fourth plates projecting from the cage, the third and fourth plates forming a pair of descending legs of the H-shape;a graft securing feature inside the cage;a first gripping member formed on the first plate, wherein the gripping member extends toward a second plate;a second gripping member formed on the second plate, wherein the gripping member extends towards the first plate;a third gripping member formed on the third plate, wherein the gripping member extends toward the fourth plate; anda fourth gripping member formed on the fourth plate, wherein the gripping member extends towards the third plate;wherein each one of the first and second plates terminates with a recess opposite the cage, wherein each one of the third and fourth plates terminates with a projection opposite the cage, wherein the projection is complementary to the recess, with clearance.
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