Expandable intervertebral fusion implant

Patent metadata

Field	Value
Publication number	US-10314718-B2
Application number	US-201615273032-A
Country	US
Kind code	B2
Filing date	Sep 22, 2016
Priority date	Sep 22, 2016
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

An expandable intervertebral fusion implant including an inferior component, a superior component arranged to telescopingly engage the inferior component, and a port arranged in the inferior or superior component. When a first material is introduced through the port, the inferior and superior components are displaced vertically. Each of the inferior and/or superior components can include telescoping components which allow the inferior and/or superior components to be expanded along the length and/or width of the implant before the inferior and superior components are displaced vertically. The expandable intervertebral fusion implant can be expanded with, and locked in place, hydraulic and/or hardenable material. Alternatively, the expandable intervertebral fusion implant can be expanded using a mechanical implement and then hardenable material can be introduced into the implant to maintain the implant in the expanded position.

First claim

I claim:

1. An expandable intervertebral fusion implant, comprising:
an inferior component;
a superior component telescopingly engageable with the inferior component; and,
an input port arranged in the inferior or the superior component;
wherein:
the inferior component or the superior component includes a vent; and,
when a first material is introduced through the input port and into the inferior or the superior component, the superior component is displaced in a first direction relative to the inferior component.

2. The expandable intervertebral fusion implant of claim 1 , wherein the inferior component comprises a first upwardly extending hollow channel and the superior component comprises a first downwardly extending strut arranged to telescopingly engage the first upwardly extending hollow channel.

3. The expandable intervertebral fusion implant of claim 1 , wherein the superior component comprises a first downwardly extending hollow channel and the inferior component comprises a first upwardly extending strut arranged to telescopingly engage the first upwardly extending hollow channel.

4. The expandable intervertebral fusion implant of claim 1 , wherein the inferior and superior components are expandable in a second direction, different than the first direction.

5. The expandable intervertebral fusion implant of claim 4 , wherein the inferior and superior components are expandable in a third direction, different than the first and second directions.

6. The expandable intervertebral fusion implant of claim 1 , further comprising:
a first hollow channel;
a second hollow channel connected to the first hollow channel by a further hollow channel;
a first strut arranged to telescopingly engage the first hollow channel; and,
a second strut arranged to telescopingly engage the second hollow channel;
wherein the first, second, and further hollow channels are arranged to receive the first material.

7. The expandable intervertebral fusion implant of claim 1 , further comprising a cavity formed between the inferior and superior components to receive bone fusing material.

8. The expandable intervertebral fusion implant recited in claim 1 , wherein said inferior component comprises a body, and said body comprises at least one aperture therein.

9. The expandable intervertebral fusion implant recited in claim 1 , wherein said superior component comprises a body, and said body comprises at least one aperture therein.

10. The expandable intervertebral fusion implant recited in claim 1 , wherein said inferior component comprises a body, and said body is arcuate in shape.

11. The expandable intervertebral fusion implant recited in claim 1 , wherein said superior component comprises a body, and said body is arcuate in shape.

12. The expandable intervertebral fusion implant recited in claim 1 , further comprising:
a hollow channel including a shoulder, the hollow channel connected to the input port; and,
a strut arranged to telescopingly engage the hollow channel, the strut including a flange arranged to slide within the hollow channel, and abut the shoulder when the superior component is in a maximally extended position relative to the inferior component.

13. The expandable intervertebral fusion implant recited in claim 1 , wherein the superior and inferior components are hingedly connected.

14. The expandable intervertebral fusion implant recited in claim 1 , further comprising a first intermediate telescoping member arranged to telescopingly engage the inferior and superior components.

15. The expandable intervertebral fusion implant recited in claim 14 , further comprising a second intermediate telescoping member arranged to telescopingly engage the first intermediate telescoping member.

16. The expandable intervertebral fusion implant of claim 1 , wherein the vent comprises a valve.

17. An expandable intervertebral fusion implant having a proximal end and a distal end, the expandable intervertebral fusion implant comprising:
an inferior component;
a superior component arranged to telescopingly engage the inferior component; and,
an input port and a vent arranged within the inferior component or the superior component;
wherein when the superior component is expanded to a first position relative to the inferior component, a first material is introduced into and through the inferior component and/or the superior component to maintain the position of the superior and inferior components.

18. The expandable intervertebral fusion implant of claim 17 , further comprising a hollow channel extending between the input port and the vent, the hollow channel within the inferior component.

19. The expandable intervertebral fusion implant of claim 17 , further comprising a hollow channel extending between the input port and the vent, the hollow channel within the superior component.

20. The expandable intervertebral fusion implant of claim 17 , wherein the vent comprises a valve.

Assignees

• Suddaby Loubert S

Inventors

• Suddaby Loubert S

Classifications

• A61F2/4455 Primary

  for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442) · CPC title

• A61F2002/4692

  fluid · CPC title

• A61F2002/30693

  Air venting means · CPC title

• A61F2002/4693

  hydraulic · CPC title

• A61F2002/30224

  cylindrical · CPC title