Anchor for bone and soft tissue

• US 9,254,186 B2
• Filed: 10/23/2013
• Issued: 02/09/2016
• Est. Priority Date: 10/23/2012
• Status: Active Grant

• Current Assignee: Spinesmith Partners L P
• Original Assignee: Spinesmith Partners L P
• Inventors: Landry, Michael, Dunworth, Kevin
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Schutte, Wade P
• Application Number:
  US14/061,585
• Publication Number:
  US 20140114412A1
• Time in Patent Office: 839 Days
• Field of Search: 623/13.14, 623/2.36, 623/2.38
• US Class Current: 1/1
• 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 2002/0864 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

The invention is directed to an anchor for fixing a tendon or a ligament in a bone comprising: an elongated tubular body having a bore extending along a longitudinal axis, said tubular body comprising first and second independent parts slidably contacting each other, the first and second independent parts each having an outer circumferential surface along a length thereof parallel to the longitudinal axis, and each having an elongated partial inner bore, such that the tubular body is capable of mounting a tendon or ligament within the partial inner bore.

Claims

1. An anchor for fixing a tendon or a ligament in a bone comprising:

an elongated tubular body having a central bore extending along a longitudinal axis of the tubular body, said tubular body defined by a repeating overlap between a first wire-form pattern and a second wire-form pattern, the first and second wire-form patterns each having an elongated partial inner bore parallel to the central bore, such that the tubular body is capable of mounting a tendon or ligament within the partial inner bore of said first and second wire-form patterns.

2. The anchor of claim 1 further comprising a pin inserted into the central bore.

3. The anchor of claim 2 wherein insertion of the pin into the central bore causes an expansion of the central bore.

5. The anchor of claim 1, wherein the first wire-form pattern comprises a repeating first shape and the second wire-form pattern comprises a repeating second shape.

6. The anchor of claim 2, wherein the elongated partial inner bores of the first and second wire-form patterns decrease in surface area in response to the insertion of the pin.

7. The anchor of claim 2, wherein a circumference of the tubular body increases in response to the insertion of the pin.

4. A method for anchoring a tendon or ligament in a bone comprising the steps of:

providing an elongated tubular body having a central bore extending along a longitudinal axis, said tubular body defined by a repeating overlap between a first wire-form pattern and a second wire-form pattern the first and second wire-form patterns each having an elongated partial inner bore parallel to the central bore;

inserting one or more tendons or ligaments into the elongated partial inner bore of said first and second wire-form patterns;

inserting a pin into the central bore of the tubular body and expanding the diameter of the central bore; and

anchoring the tendon or ligament in a bone.

8. The method of claim 4, wherein inserting the pin decreases a surface area of the elongated partial inner bores of the first and second wire-form patterns.