SELF-OSTEOTOMIZING AND GRAFTING BONE IMPLANT

• US 20130022942A1
• Filed: 07/19/2012
• Published: 01/24/2013
• Est. Priority Date: 07/20/2011
• Status: Abandoned Application

• Current Assignee: Parsa T. Zadeh
• Original Assignee: Parsa T. Zadeh
• Inventors: Zadeh, Parsa T.
• Application Number:
  US13/553,678
• Publication Number:
  US 20130022942A1
• Time in Patent Office: Days
• US Class Current: 433/174
• CPC Class Codes: A61B 17/863 with thread interrupted or changing its form along shank, other than constant taper
• CPC Class Codes: A61C 8/0024 with self-boring cutting edge
• CPC Class Codes: A61C 8/006 with polygonal positional means, e.g. hexagonal or octagonal
• CPC Class Codes: A61C 8/0068 with an additional screw
• CPC Class Codes: A61C 8/0069 tapered or conical connection

Abstract

A bone implant includes a head and a core body extending from the head to a tip. Multiple osteotomy blades extend outwardly from at least a portion of the core body, arranged end-to-end to form a spiral thread. The implant, and particularly the osteotomy blades, are configured to self-osteotomize and channel cut bone between the blades and facilitate bone growth and grafting and integration of the implant to the bone.

Claims

1. A self-osteotomizing and grafting bone implant, comprising:

a head;

a core body extending from the head to a tip and having a longitudinal axis; and

multiple osteotomy blades extending outwardly from at least a portion of the core body and arranged end to end forming a spiral thread;

wherein at least a portion of the osteotomy blades have an enlarged generally flat peripheral outer surface defining a stabilizing wall generally facing away from the core body.

2. The implant of claim 1, wherein the stabilizing wall defines a cutting edge.

3. The implant of claim 1, wherein an upper surface generally directed towards the head or a lower surface generally directed toward the tip of the osteotomy blades defines a depression adapted to channel bone material cut by the implant to a space between the upper and lower surfaces of adjacent osteotomy blades.

4. The implant of claim 3, wherein the depression is generally V-shaped or U-shaped.

5. The implant of claim 4, wherein the depression is defined by a first angled ramp of the surface of the osteotomy blade extending from the core body and a second angled ramp of the surface of the osteotomy blade extending from the peripheral outer surface of the osteotomy blade towards the first angled ramp.

6. The implant of claim 5, wherein at least a portion of the peripheral outer portion of the osteotomy blade has a generally triangular cross-section.

7. The implant of claim 1, wherein a plurality of osteotomy blades are end to end for each turn of the spiral thread.

8. The implant of claim 1, including a plurality of apertures formed through the osteotomy blades of a size and configuration permitting blood vessels and/or bone to grow therein.

9. The implant of claim 8, wherein surfaces and edges formed by the apertures are generally non-cutting flat or rounded edges and surfaces.

10. The implant of claim 8, wherein the apertures comprise open-face apertures formed in peripheral surfaces of the osteotomy blades.

11. The implant of claim 1, wherein the head of the implant comprises a dental implant head, wherein at least a portion of an outer surface of the dental implant head is generally concave.

12. The implant of claim 11, including a generally cylindrical neck adjacent the core body, and the generally concave outer surface of the head extending between the neck and an upper head surface.

13. The implant of claim 1, wherein the tip is rounded and has a diameter substantially matching a diameter of a pilot hole drilled into the bone.

14. The implant of claim 1, wherein at least a portion of the osteotomy blades adjacent the core body are of increasing cross-sectional thickness from the head towards the tip.

15. The implant of claim 1, wherein the implant is generally tapered from the head to the tip.

16. A self-osteotomizing and grafting bone implant, comprising:

a head;

a core body extending from the head to a tip and having a longitudinal axis; and

multiple osteotomy blades extending outwardly from at least a portion of the core body and arranged end to end forming a spiral thread;

wherein an upper surface generally directed towards the head or a lower surface generally directed toward the tip of the osteotomy blades defines a generally V-shaped or U-shaped depression adapted to channel bone material cut by the implant to a space between the upper and lower surfaces of adjacent osteotomy blades.

17. The implant of claim 16, wherein the depression is defined by a first angled ramp of the surface of the osteotomy blade extending from the core body and a second angled ramp of the surface of the osteotomy blade extending from the peripheral outer surface of the osteotomy blade towards the first angled ramp.

18. The implant of claim 16, wherein at least a portion of the osteotomy blades have an enlarged generally flat peripheral outer surface defining a stabilizing wall generally facing away from the core body and defining a cutting edge.

19. The implant of claim 18, wherein at least a portion of the peripheral outer portion of the osteotomy blade has a generally triangular cross-section.

20. The implant of claim 16, wherein a plurality of osteotomy blades are end to end for each turn of the spiral thread.

21. The implant of claim 16, including a plurality of apertures formed through the osteotomy blades of a size and configuration permitting blood vessels and/or bone to grow therein.

22. The implant of claim 21, wherein surfaces and edges formed by the apertures are generally non-cutting flat or rounded edges and surfaces.

23. The implant of claim 21, wherein the apertures comprise open-face apertures formed in peripheral surfaces of the osteotomy blades.

24. The implant of claim 16, wherein the head of the implant comprises a dental implant head, wherein at least a portion of an outer surface of the dental implant head is generally concave.

25. The implant of claim 24, including a generally cylindrical neck adjacent the core body, and the generally concave outer surface of the head extending between the neck and an upper head surface.

26. The implant of claim 16, wherein the tip is rounded and has a diameter substantially matching a diameter of a pilot hole drilled into the bone.

27. The implant of claim 16, wherein at least a portion of the osteotomy blades adjacent the core body are of increasing cross-sectional thickness from the head towards the tip.

28. The implant of claim 16, wherein the implant is generally tapered from the head to the tip.

29. A self-osteotomizing and grafting bone implant, comprising:

a head;

a core body extending from the head to a tip and having a longitudinal axis; and

multiple osteotomy blades extending outwardly from at least a portion of the core body and arranged end to end forming a spiral thread;

a plurality of apertures formed through the osteotomy blades of a size and configuration permitting blood vessels and/or bone to grow therein.

30. The implant of claim 29, wherein surfaces and edges formed by the apertures are generally non-cutting flat or rounded edges and surfaces.

31. The implant of claim 29, wherein the apertures comprise open-face apertures formed in peripheral surfaces of the osteotomy blades.

32. The implant of claim 29, wherein an upper surface generally directed towards the head or a lower surface generally directed toward the tip of the osteotomy blades defines a generally V-shaped or U-shaped depression adapted to channel bone material cut by the implant to a space between the upper and lower surfaces of adjacent osteotomy blades.

33. The implant of claim 32, wherein the depression is defined by a first angled ramp of the surface of the osteotomy blade extending from the core body and a second angled ramp of the surface of the osteotomy blade extending from the peripheral outer surface of the osteotomy blade towards the first angled ramp.

34. The implant of claim 29, wherein at least a portion of the osteotomy blades have an enlarged generally flat peripheral outer surface defining a stabilizing wall generally facing away from the core body and defining a cutting edge.

35. The implant of claim 34, wherein at least a portion of the peripheral outer portion of the osteotomy blade has a generally triangular cross-section.

36. The implant of claim 29, wherein a plurality of osteotomy blades are end to end for each turn of the spiral thread.

37. The implant of claim 29, wherein the head of the implant comprises a dental implant head, wherein at least a portion of an outer surface of the dental implant head is generally concave.

38. The implant of claim 37, including a generally cylindrical neck adjacent the core body, and the generally concave outer surface of the head extending between the neck and an upper head surface.

39. The implant of claim 29, wherein the tip is rounded and has a diameter substantially matching a diameter of a pilot hole drilled into the bone.

40. The implant of claim 29, wherein at least a portion of the osteotomy blades adjacent the core body are of increasing cross-sectional thickness from the head towards the tip.

41. The implant of claim 29, wherein the implant is generally tapered from the head to the tip.

42. A self-osteotomizing and grafting bone implant, comprising:

a head;

a core body extending from the head to a tip and having a longitudinal axis; and

multiple osteotomy blades extending outwardly from at least a portion of the core body and arranged end to end forming a spiral thread;

a plurality of apertures formed through the osteotomy blades of a size and configuration permitting blood vessels and/or bone to grow therein;

wherein an upper surface generally directed towards the head or a lower surface generally directed toward the tip of the osteotomy blades defines a generally V-shaped or U-shaped depression adapted to channel bone material cut by the implant to a space between the upper and lower surfaces of adjacent osteotomy blades; and

wherein at least a portion of the osteotomy blades have an enlarged generally flat peripheral outer surface defining a stabilizing wall generally facing away from the core body and defining a cutting edge.

43. The implant of claim 42, wherein surfaces and edges formed by the apertures are generally non-cutting flat or rounded edges and surfaces.

44. The implant of claim 42, wherein the apertures comprise open-face apertures formed in peripheral surfaces of the osteotomy blades.

45. The implant of claim 42, wherein the depression is defined by a first angled ramp of the surface of the osteotomy blade extending from the core body and a second angled ramp of the surface of the osteotomy blade extending from the peripheral outer surface of the osteotomy blade towards the first angled ramp.

46. The implant of claim 45, wherein at least a portion of the peripheral outer portion of the osteotomy blade has a generally triangular cross-section.

47. The implant of claim 42, wherein a plurality of osteotomy blades are end to end for each turn of the spiral thread.

48. The implant of claim 42, wherein the head of the implant comprises a dental implant head, wherein at least a portion of an outer surface of the dental implant head is generally concave.

49. The implant of claim 48, including a generally cylindrical neck adjacent the core body, and the generally concave outer surface of the head extending between the neck and an upper head surface.

50. The implant of claim 42, wherein the tip is rounded and has a diameter substantially matching a diameter of a pilot hole drilled into the bone.

51. The implant of claim 42, wherein at least a portion of the osteotomy blades adjacent the core body are of increasing cross-sectional thickness from the head towards the tip.

52. The implant of claim 42, wherein the implant is generally tapered from the head to the tip.

53. A self-osteotomizing and grafting dental implant bone implant, comprising:

a head having an internal connection for attachment of an abutment, an upper head surface and a lower head surface, the lower head surface being of a greater diameter than the upper head surface, and a neck extending between the upper and lower head surfaces, at least a portion of the neck defining a generally concave surface;

a core body extending from the head to a tip and having a longitudinal axis; and

multiple osteotomy blades extending outwardly from at least a portion of the core body and arranged end to end forming a spiral thread.

54. The implant of claim 53, wherein the neck portion has a generally cylindrical portion adjacent to the lower surface of the head.

55. The implant of claim 53, including a plurality of apertures formed through the osteotomy blades of a size and configuration permitting blood vessels and/or bone to grow therein.

56. The implant of claim 53, wherein at least a portion of the osteotomy blades has an enlarged generally flat peripheral outer surface defining a stabilizing wall generally facing away from the core body and defining a cutting edge.

57. The implant of claim 53, wherein an upper surface generally directed towards the head or a lower surface generally directed toward the tip of the osteotomy blades defines a generally V-shaped or U-shaped depression adapted to channel bone material cut by the implant to a space between the upper and lower surfaces of adjacent osteotomy blades.

58. The implant of claim 57, wherein the depression is defined by a first angled ramp of the surface of the osteotomy blade extending from the core body and a second angled ramp of the surface of the osteotomy blade extending from the peripheral outer surface of the osteotomy blade towards the first angled ramp.

59. The implant of claim 56, wherein at least a portion of the peripheral outer portion of the osteotomy blade has a generally triangular cross-section.

60. The implant of claim 53, wherein a plurality of osteotomy blades are end to end for each turn of the spiral thread.

61. The implant of claim 55, wherein surfaces and edges formed by the apertures are generally non-cutting flat or rounded edges and surfaces.

62. The implant of claim 55, wherein the apertures comprise open-face apertures formed in peripheral surfaces of the osteotomy blades.

63. The implant of claim 53, wherein the tip is rounded and has a diameter substantially matching a diameter of a pilot hole drilled into the bone.

64. The implant of claim 53, wherein at least a portion of the osteotomy blades adjacent the core body are of increasing cross-sectional thickness from the head towards the tip.

65. The implant of claim 53, wherein the implant is generally tapered from the head to the tip.