Bioabsorbable Endosteal Fixation Device and Method of Use

• US 20070055255A1
• Filed: 08/27/2005
• Published: 03/08/2007
• Est. Priority Date: 08/27/2005
• Status: Abandoned Application

• Current Assignee: Mark Siegel
• Original Assignee: Mark Siegel
• Inventors: Siegel, Mark
• Application Number:
  US11/162,073
• Publication Number:
  US 20070055255A1
• Time in Patent Office: Days
• US Class Current: 606/232
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0835 with deformation of anchor parts, e.g. expansion of dowel by set screw
• CPC Class Codes: A61F 2002/0841 Longitudinal channel for insertion tool running through the whole tendon anchor, e.g. for accommodating bone drill, guidewire
• CPC Class Codes: A61F 2002/0858 Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
• CPC Class Codes: A61F 2002/0864 Fixation of tendon or ligament between anchor elements, e.g. by additional screws in the anchor, anchor crimped around tendon
• CPC Class Codes: A61F 2002/0882 Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone

Abstract

A device for repairing biological connective tissues to bone includes a hallowed elongated body. The elongated body is introduced into a tunnel created in a bone and is positioned to retain connective tissues in position with the tunnel in the bone. The elongated body may be used in conjunction with other known techniques and devices for repairing damaged soft connective tissues.

Claims

1. A device for substantially securing biological connective tissue to bone, comprising:

a substantially hallow elongated body having a distal end, a proximal end, an inner surface and an outer surface, wherein the distal end includes a first opening, the proximal end includes a second opening, the outer surface comprises one or more anchors to substantially obviate rotation of the elongated body, and the elongated body is comprised of a bioabsorbable material.

2. The device according to claim 1, wherein the connective tissue is positioned between the outer surface of the elongated body and the bone.

3. The device according to claim 1, wherein the biological connective tissue is positioned between the inner surface of the elongated body and the bone.

4. The device according to claim 1, further comprising a securing means having an outer surface sized to be about the same as the inner surface of the elongated body.

5. The device according to claim 4, wherein the securing means is a screw, plug, wedge, or similar interference fixation apparatus.

6. The device according to claim 1, wherein the one or more anchors on the outer surface of the elongated body comprise one or more fin-shaped protrusions.

7. The device according to claim 6, wherein the one or more fins-shaped protrusions are serrated.

8. The device according to claim 1, wherein the one or more anchors on the outer surface of the elongated body comprise a series of nodules.

9. The device according to claim 1, wherein the elongated body comprises one or more series of slots.

10. The device according to claim 1, wherein the elongated body is comprised of hydroxyapatite (HA), bone morphogenetic protein (BMP), similar material that encourages biological tissue growth, or a combination thereof.

11. The device according to claim 1, wherein the elongated body is coated with hydroxyapatite (HA), bone morphogenetic protein (BMP), similar material that encourages biological tissue growth, or a combination thereof.

12. The device according to claim 1, wherein the distal end is truncated.

13. A method for endosteal fixation, comprising:

forming a tunnel into a bone, wherein the tunnel comprises a wall;

inserting biological connective tissue into the tunnel;

inserting a substantially hallow elongated body into the tunnel, wherein the elongated body has a distal end, a proximal end, an inner surface and an outer surface, such that the distal end includes a first opening, the proximal end includes a second opening, the outer surface comprises one or more anchors to substantially obviate rotation of the elongated body, and the elongated body is comprised of a bioabsorbable material; and

positioning the elongated body in the tunnel such that the connective tissue is anchored to for proper biological healing and bone growth.

14. The method according to claim 13, wherein the biological connective tissue is positioned between the outer surface of the elongated body and the bone.

15. The method according to claim 13, wherein the biological connective tissue is positioned within the inner surface of the elongated body.

16. The method according to claim 13, further comprising driving a securing means into the second opening of the inserted supporting means, wherein the securing means having an outer surface sized to be about the same as the inner surface of the elongated body.

17. The device according to claim 16, wherein the securing means is a screw, plug, wedge, or similar interference fixation apparatus.

18. The device according to claim 13, wherein the one or more anchors on the outer surface of the elongated body comprise one or more fin-shaped protrusions.

19. The method according to claim 13, wherein the one or more anchors on the outer surface of the elongated body comprise a series of nodules.

20. The method according to claim 13, wherein the elongated body comprises one or more series of slots.

21. The method according to claim 13, wherein the elongated body is comprised of hydroxyapatite (HA), bone morphogenetic protein (BMP), similar material that encourages biological tissue growth, or a combination thereof.

22. The method according to claim 13, wherein the elongated body is coated with hydroxyapatite (HA), bone morphogenetic protein (BMP), similar material that encourages biological tissue growth, or a combination thereof.

23. The method according to claim 13, wherein the biological connective tissue is passed through the first opening and the second opening of the elongated body, and the inserting of the biological connective tissue into the tunnel and inserting the elongated body into the tunnel occur at substantially the same time.