LATERAL MOUNT IMPLANT DEVICE

Abstract

An implant device for the spine suitable for the fixation and support of adjacent vertebrae includes a base member for implantation at a location between the two vertebrae and one or more protrusions extending from the base member. The protrusion(s) are configured for engagement with one of the vertebrae upon implantation and for progressive penetration into the vertebrae over a period of time subsequent to the implantation. The implant device includes a lateral mounting portion to accommodate fixation of the device to a lateral side of the vertebrae. The implant device is configured for insertion between the adjacent vertebrae through a posterior lateral or lateral opening that exposes a lateral side of the disc space.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and other features and advantages of the present invention will become apparent to those skilled in the art to which the present invention relates upon reading the following description with reference to the accompanying drawings.

FIG. 1 is an angled lateral side perspective view of an implant device in accordance with an aspect of the present invention.

FIG. 2 is a top view of the implant device of FIG. 1.

FIG. 3 is a lateral side view of the implant device of FIG. 1.

FIG. 4 is a top view of an implant device in accordance with an aspect of the present invention.

FIG. 5 is an angled lateral side perspective view of an implant device in accordance with an aspect of the present invention.

FIG. 6 is an anterior view of the implant device of FIG. 5.

FIG. 7 is a top view of an implant device in accordance with an aspect of the present invention.

FIG. 8 is an angled lateral side perspective view of an implant device in accordance with an aspect of the present invention.

FIG. 9 is an anterior view of the implant device of FIG. 8.

FIG. 10 is an angled lateral side perspective view of an implant device in accordance with an aspect of the present invention.

FIG. 11 is an anterior view of the implant device of FIG. 10.

FIG. 12 is a lateral side view of an implant device positioned between two vertebrae in accordance with an aspect of the present invention.

FIG. 13 is an angled anterior perspective view of an implant device positioned between two vertebrae in accordance with an aspect of the present invention.

FIG. 14 is an angled lateral side perspective view of an implant device positioned between two vertebrae in accordance with an aspect of the present invention.

FIG. 15 is a top view of a posterior lateral opening along a spine that is suitable for inserting an implant device to be secured to a lateral side of a vertebra.

FIG. 16 is a top view of a lateral opening that is suitable for inserting an implant device to be secured to a lateral side of a vertebra.

Claims

1. An implant device for the spine, the implant device including: a base member configured to interface with two adjacent vertebrae including a lateral mounting portion to accommodate fixation of the device to a lateral side of at least one of the vertebrae and an elongated side portion extending from a side of the lateral mounting portion and configured to extend between the vertebrae;at least one interface member extending from at least one surface of the elongated side portion, the interface members being configured to provide controlled subsidence of the implant device into at least one vertebra; anda plurality of bone fasteners extending through apertures provided in the lateral mounting portion of the base member to penetrate the lateral side of the at least one of the vertebrae.

2. The implant device of claim 1, wherein the device is positioned between two vertebrae through a posterior lateral opening exposing a lateral side of the vertebrae.

3. The implant device of claim 1, wherein the device is positioned between two vertebrae through a lateral opening exposing a lateral side of the vertebrae.

4. The implant device of claim 1, including a plurality of interface members extending from at least one surface of the elongated side portion, wherein at least one of the plurality of interface members is aligned with an elongate direction of the spine.

5. The implant device of claim 4, wherein the plurality of interface members extend from the bottom surface of the elongated side portion.

6. The implant device of claim 4, wherein the plurality of interface members extend from the top surface of the elongated side portion.

7. The implant device of claim 4, wherein the plurality of interface members extend more than one surface of the elongated side portion.

8. The implant device of claim 1, wherein no relative sliding movement occurs between the plurality of fasteners and the base member during the controlled subsidence.

9. The implant device of claim 1, wherein at least one of the apertures is an elongated slot having an elongation length, wherein the slot is configured to permit relative travel movement of the respective bone fastener extending therethrough along the elongation length of the slot during the controlled subsidence.

10. The implant device of claim 9, wherein the lateral mounting portion further includes at least one aperture in the form of a round hole, the round hole being configured for receiving a bone fastener extending therethrough.

11. The implant device of claim 9, wherein the elongated slot that has an elongation length greater than a height of the at least one interface member.

12. The implant device of claim 9, wherein the elongated slot that has an elongation length less than a height of the at least one interface member.

13. The implant device of claim 9, wherein relative travel movement occurs between at least one fastener and the base member during the controlled subsidence.

14. The implant device of claim 9, wherein at least one interface member is substantially fully penetrated into at least one vertebra during controlled subsidence and the bone fastener is not at the end of the elongated slot.

15. The implant device of claim 9, wherein the bone fastener is at the end of the elongated slot before at least one interface member is substantially fully penetrated into a vertebra during controlled subsidence.

16. The implant device of claim 1, further including a restraining means for restricting movement of at least one bone fastener extending through an aperture in the lateral mounting portion.

17. The implant device of claim 16, wherein the restraining means includes a cover extending over a portion of at least one bone fastener for preventing back-out of the bone fastener.

18. The implant device of claim 16, wherein the restraining means includes a restraining plate secured to the lateral mounting portion via a fastener to mitigate the backing out of a bone fastener, the restraining plate being configured to permit at least one bone fastener to slide and toggle in the aperture the at least one bone fastener extends through.

19. The implant device of claim 1, wherein the elongated side portion is curved and has a posterior face and an anterior face relative to the vertebrae.

20. The implant device of claim 19, wherein the posterior face of the elongated side portion is concave and the anterior face of the elongated side portion is convex.

21. The implant device of claim 19, wherein the lateral mounting portion is contiguous with one end of the elongated side portion.

22. The implant device of claim 19, wherein the base member further includes a back portion being contiguous with the elongated side portion.

23. The implant device of claim 1, wherein the elongated side portion forms a peripherally-surrounded chamber for receiving fusion material, wherein the lateral mounting portion forms a segment of the peripherally-surrounded chamber.

24. The implant device of claim 21, wherein the peripherally-surrounded chamber includes at least one interior compartment.

25. The implant device of claim 21, wherein the peripherally-surrounded chamber includes at least one interior member extending from an inner face surface of the elongated side portion, and the at least one interior member being configured to divide the peripherally-surrounded chamber into at least two interior compartments.

26. The implant device of claim 21, wherein the peripherally-surrounded chamber includes a substantially flat inner face surface having an interior member extending from a portion of the inner surface and the interior member being connected to the opposing portion of the inner face surface of the peripherally-surrounded chamber such that the chamber is divided into two interior compartments.

27. The implant device of claim 21, including a plurality of interface members extending from at least one surface of the peripherally-surrounded chamber, wherein the at least one of the plurality of interface members is aligned with an elongate direction of the spine.

28. The implant device of claim 25, wherein the peripherally-surrounded chamber has a top surface and a bottom surface.

29. The implant device of claim 1, further including a bottom mounting member extending from a surface of the lateral mounting portion at an angle relative to the lateral mounting portion.

30. The implant device of claim 29, wherein the bottom mounting member includes at least one aperture configured to receive a bone fastener therethrough.

31. The implant device of claim 30, wherein at least one aperture in the lateral mounting portion is in the form of an angled round hole relative to another aperture.

32. The implant device of claim 31, wherein the at least one aperture in the bottom mounting member is an elongated slot and the at least one aperture in the lateral mounting portion is a round hole.

33. An implant device for the spine, the implant device including: a base member including a lateral mounting portion to accommodate fixation of the device to a lateral side of at least one vertebra and an elongated side portion extending from a side of the lateral mounting portion in a direction towards the at least one vertebra, wherein the elongated side portion interfaces with the at the at least one vertebra;at least one interface member extending from at least one surface of the elongated side portion, the interface members being configured to provide controlled subsidence of the implant device into the at least one vertebra;a plurality of bone fasteners extending through apertures provided in the lateral mounting portion of the base member; anda restraining means for restricting movement of at least one bone fastener.

34. The implant device of claim 33, wherein the elongated side portion extends between two vertebrae.

35. The implant device of claim 34, including a plurality of interface members extending from at least one surface of the elongated side portion, wherein at least one of the plurality of interface members is aligned with an elongate direction of the spine.

36. The implant device of claim 34, wherein the elongated side portion has a top surface and a bottom surface.

37. The implant device of claim 36, wherein the lateral mounting portion has a segment extending above the top surface of the elongated side portion and a segment extending below the bottom surface of the elongated side portion.

38. The implant device of claim 37, wherein the segment extending above the top surface of the elongated side portion includes at least one aperture and the segment extending below the bottom surface of the elongated side portion includes at least one aperture.

39. The implant device of claim 38, wherein no relative sliding movement occurs between the plurality of fasteners and the base member during the controlled subsidence.

40. The implant device of claim 38, wherein the at least one aperture of the segment extending above the top surface of the elongated side portion is in the form of a round hole.

41. The implant device of claim 38, wherein the at least one aperture of the segment extending below the bottom surface of the elongated side portion is in the form of an elongated slot.

42. The implant device of claim 41, wherein the elongated slot has an elongation length and the elongated slot is configured to permit relative travel of the respective bone fastener extending therethrough along the elongation length of the slot during the controlled subsidence.

43. The implant device of claim 34, wherein the elongated side portion forms a peripherally-surrounded chamber for receiving fusion material, wherein the lateral mounting portion forms a segment of the peripherally-surrounded chamber.

44. The implant device of claim 43, wherein the peripherally-surrounded chamber includes at least two interior compartments.

45. The implant device of claim 43, wherein the peripherally-surrounded chamber includes at least one interior member extending from an inner face surface of the elongated side portion, and the at least one interior member being configured to divide the peripherally-surrounded chamber into at least two interior compartments.

46. The implant device of claim 33, wherein the device is positioned between two vertebrae through a posterior lateral opening exposing the lateral side of the vertebrae.

47. The implant device of claim 33, wherein the device is positioned between two vertebrae through a lateral opening exposing the lateral side of the vertebrae.