Source: https://patents.google.com/patent/US9138276B2/en
Timestamp: 2019-05-19 19:44:40
Document Index: 792903663

Matched Legal Cases: ['Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'Application No. 61', 'art.\n4', 'art.\n5']

US9138276B2 - Intervertebral implant with integrated fixation - Google Patents
US9138276B2
US9138276B2 US13/861,765 US201313861765A US9138276B2 US 9138276 B2 US9138276 B2 US 9138276B2 US 201313861765 A US201313861765 A US 201313861765A US 9138276 B2 US9138276 B2 US 9138276B2
US13/861,765
US20130226302A1 (en
2013-04-12 Priority to US13/861,765 priority patent/US9138276B2/en
2013-04-12 Application filed by Howmedica Osteonics Corp filed Critical Howmedica Osteonics Corp
2013-05-06 Assigned to MEDICINELODGE, INC. reassignment MEDICINELODGE, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JUSTIN, DANIEL F., BAE, HYUN, BUTTERS, JOSHUA A., DELAMARTER, RICK, HUSHKA, DYLAN, SLATER, NICHOLAS
2013-05-13 Assigned to HOWMEDICA OSTEONICS CORP. reassignment HOWMEDICA OSTEONICS CORP. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEDICINELODGE, INC.
2013-05-15 Assigned to MEDICINELODGE, INC. reassignment MEDICINELODGE, INC. CONFIRMATORY ASSIGNMENT Assignors: BAE, HYUN, BUTTERS, JOSHUA A., HUSHKA, DYLAN, SLATER, NICHOLAS, DELAMARTER, RICK, JUSTIN, DANIEL F.
2013-08-29 Publication of US20130226302A1 publication Critical patent/US20130226302A1/en
2015-09-22 Publication of US9138276B2 publication Critical patent/US9138276B2/en
The present application is a continuation of U.S. patent application Ser. No. 13/723,360, filed on Dec. 21, 2012, which is a continuation of U.S. patent application Ser. No. 12/640,816, now U.S. Pat. No. 8,349,015, filed on Dec. 17, 2009, which claims the benefit of the filing dates of U.S. Provisional Patent Application No. 61/151,701 filed Feb. 11, 2009, U.S. Provisional Patent Application No. 61/232,705 filed Aug. 10, 2009, U.S. Provisional Patent Application No. 61/232,745 filed Aug. 10, 2009, U.S. Provisional Patent Application No. 61/257,734 filed Nov. 3, 2009, and U.S. Provisional Patent Application No. 61/257,667 filed Nov. 3, 2009, all of the disclosures of which are hereby incorporated herein by reference.
FIG. 24 is a lateral view of an intervertebral fusion prosthesis similar to that of FIGS. 2A and 7;
FIG. 25 is a lateral view of an anchor similar to that of FIGS. 6A and 7.
Another embodiment of a prosthesis 110′ is shown in FIGS. 24 and 25. Prosthesis 110′ is similar in all respects to prosthesis 110 described above and shown in FIGS. 1-7, except that one anchor 116 is replaced with an anchor 116′. Anchor 116′ includes an expandable leading end 168′ but is otherwise similar in all respects to anchor 116, with like elements denoted with an apostrophe. Expandable leading end 168′ includes a slot 193 between top side 186′ and bottom side 188′ and extending toward trailing end 170′. While the embodiment shown in FIG. 24 includes one anchor 116 and one anchor 116′ disposed on opposite sides of the spacer 112, another embodiment can include two anchors 116′.
A first anchor 116 having a size and shape corresponding to the disc space 6 and vertebral bodies of vertebrae 2, 4 may be selected from a kit comprising anchors of various sizes and shapes. The anchor 116 may be oriented so that the plate 184 faces superiorly and the dovetail beam 172 faces inferiorly. The anchor 116 may be further oriented so that the leading end 168 faces posteriorly, the trailing end 170 faces anteriorly, and the dovetail beam 172 is collinear with the dovetail slot 162 across the top side 158 of the jacket 114 and the dovetail slot 146 across the top side 118 of the spacer 112. The dovetail beam 172 of the anchor 116 is inserted into the dovetail slots 162, 146 from anterior to posterior until the dovetail beam 172 engages the leading portion 136 and trailing portion 134 of the jacket 114, the flange 174 abuts the chamfer 176, and the tab 178 snaps behind the inner surface 182 of the jacket 114. Insertion of anchor 116′ can also include expanding the leading end 168′.
a fixation portion to fix the anchor to a bone having an expandable leading end and being spaced apart from the interconnection portion; and
a leg connecting the fixation portion to the interconnection portion.
2. The bone anchor of claim 1, wherein the leading end of the fixation portion is separated into upper and lower portions by a slot extending from the leading end toward a trailing end of the fixation portion.
3. The bone anchor of claim 2, wherein the upper and lower portions of the leading end are configured to deflect apart.
4. The bone anchor of claim 3, wherein the fixation portion includes a hollow channel extending from the trailing end toward the leading end, and the anchor further includes a separating component configured to be inserted into the channel to cause the upper and lower portions of the leading end to deflect apart.
5. A system for spinal fusion, comprising:
6. The system of claim 5, wherein the interconnection portion includes a locking feature proximate a trailing end thereof, the locking feature including a tab projecting from the interconnection portion toward the trailing end to resist disengagement of the anchor from the spacer.
7. The bone anchor of claim 1, wherein the interconnection portion includes a locking feature proximate a trailing end thereof, the locking feature including a tab projecting from the interconnection portion toward the trailing end.
8. The bone anchor of claim 1, wherein the interconnection portion has a leading end, a trailing end, and a length defined therebetween, the fixation portion has a length defined between the leading end thereof and a trailing end thereof, the length of the fixation portion being less than the length of the interconnection portion, and the leg has a leading end, a trailing end, and a length defined therebetween, the length of the leg being less than the length of the fixation portion.
9. The bone anchor of claim 1, wherein a cross-section of at least a portion of the fixation portion has a substantially circular perimeter in a view from a trailing end of the anchor.
10. The system of claim 9, wherein the interconnection portion has a leading end, a trailing end, and a length defined therebetween, the fixation portion has a length defined between the leading end thereof and a trailing end thereof, the length of the fixation portion being less than the length of the interconnection portion, and the leg has a leading end, a trailing end, and a length defined therebetween, the length of the leg being less than the length of the fixation portion.
11. The bone anchor of claim 1, wherein the leading end of the fixation portion is tapered.
12. The bone anchor of claim 11, wherein a bottom side of the fixation portion at the leading end thereof is angled with respect to the interconnection portion.
13. The bone anchor of claim 11, wherein a top side of the fixation portion at the leading end thereof is angled with respect to the interconnection portion.
14. The bone anchor of claim 13, wherein the top side of the fixation portion at the leading end thereof includes a straight linear edge extending between a distal end of the fixation portion and a proximal end of the fixation portion.
15. The bone anchor of claim 11, wherein the interconnection portion has a leading end, a trailing end, and a length defined therebetween, the fixation portion has a length defined between the leading end thereof and a trailing end thereof, the length of the fixation portion being less than the length of the interconnection portion, and the leg has a leading end, a trailing end, and a length defined therebetween, the length of the leg being less than the length of the fixation portion.
16. The bone anchor of claim 11, wherein a cross-section of at least a portion of the fixation portion having a substantially circular perimeter in a view from a trailing end of the anchor.
17. The bone anchor of claim 16, wherein the interconnection portion has a leading end, a trailing end, and a length defined therebetween, the fixation portion has a length defined between the leading end thereof and a trailing end thereof, the length of the fixation portion being less than the length of the interconnection portion, and the leg has a leading end, a trailing end, and a length defined therebetween, the length of the leg being less than the length of the fixation portion.
18. A method for spinal fusion, comprising:
inserting a spacer between first and second adjacent vertebrae;
securing the spacer to the first vertebra by engaging a rigid anchor with both the spacer and the first vertebra, so as to substantially immobilize the spacer, the anchor, and the first vertebra relative to one another and against opposing spinal motion; and
expanding a leading end of a fixation portion of the anchor disposed within the first vertebra.
19. The method of claim 18, wherein the step of expanding includes deflecting upper and lower portions of the leading end of the fixation portion apart from one another.
20. The method of claim 19, wherein the step of expanding further includes inserting a separating component into a hollow channel of the fixation portion to deflect the upper and lower portions apart from one another.
21. The method of claim 18, wherein the step of securing includes compressing the first vertebra against the spacer.
22. The method of claim 21, wherein the step of securing causes an interconnection portion of the anchor to engage the spacer along a path, and a fixation portion of the anchor spaced apart from the interconnection portion to engage the first vertebra along a path that diverges from the path taken by the interconnection portion.
23. The method of claim 18, further comprising securing the spacer to the second vertebra by engaging a second rigid anchor with both the spacer and the second vertebra.
24. The method of claim 18, wherein the step of inserting includes inserting the spacer between the first and second vertebrae from a lateral approach.
25. The method of claim 18, further comprising releasably locking the anchor to the spacer by engaging a tab projecting from a trailing end of the anchor with the spacer.
US13/861,765 2009-02-11 2013-04-12 Intervertebral implant with integrated fixation Active 2030-07-14 US9138276B2 (en)
US13/723,360 Continuation US9138275B2 (en) 2009-02-11 2012-12-21 Intervertebral implant with integrated fixation
US20130226302A1 US20130226302A1 (en) 2013-08-29
US9138276B2 true US9138276B2 (en) 2015-09-22
US (6) US8287572B2 (en)
EP (4) EP2387377B1 (en)
US9138275B2 (en) 2015-09-22
US20110087328A1 (en) 2011-04-14 Centrally driven expandable implant and method
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEDICINELODGE, INC.;REEL/FRAME:030400/0934
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