Locking suture anchor assembly

• US 9,314,240 B2
• Filed: 11/10/2010
• Issued: 04/19/2016
• Est. Priority Date: 11/10/2009
• Status: Active Grant

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: Paulk, David A., Lunn, Richard Mark
• Primary Examiner(s): Bui, Vy
• Application Number:
  US13/509,167
• Publication Number:
  US 20130006302A1
• Time in Patent Office: 1,987 Days
• Field of Search: 606/232, 606/246, 606/139, 606/104, 606/63, 606/60
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/864 hollow, e.g. with socket or cannulated
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0427 having anchoring barbs or pins extending outwardly from the anchor body
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0441 the shaft being a rigid coil or spiral
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0453 threaded elements, e.g. set screws
• CPC Class Codes: A61B 2017/0464 for soft tissue
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0823 Modular anchors comprising a plurality of separate parts
• CPC Class Codes: A61F 2002/0858 Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
• CPC Class Codes: A61F 2002/0888 Anchor in or on a blind hole or on the bone surface without formation of a tunnel

Abstract

The present disclosure relates to an anchor assembly. The anchor assembly includes an anchor including a distal portion and a proximal portion, the anchor defining a cavity and an opening to the cavity; an insertion member disposed within the cavity of the anchor; and a sleeve coupled to the anchor, the sleeve disposed over the proximal portion of the anchor. A delivery device is also disclosed.

Claims

1. An anchor assembly comprising:

an anchor comprising a distal portion and a proximal portion, the anchor defining a cavity therein, with a wall of the cavity having threads, and the anchor having an opening to the cavity located in the proximal anchor portion and a through hole defined in the distal portion;

an insertion member, having a threaded proximal outer portion and a non-threaded distal outer portion, disposed within the cavity of the anchor, wherein the threaded proximal outer portion is engaged with the cavity wall threads, the non-threaded distal outer portion is disposed within the anchor cavity and a portion of the insertion member threaded portion extends from the anchor proximal portion; and

a sleeve coupled to the anchor, the sleeve disposed about the proximal portion of the anchor and enclosing the insertion member extending from the anchor proximal portion,

wherein the through hole defined in the distal portion of the anchor is not covered by the sleeve.

2. The anchor assembly of claim 1 wherein an outer surface of the distal portion of the anchor includes barbs.

3. The anchor assembly of claim 1 wherein the insertion member includes a cannulation.

4. The anchor assembly of claim 1 wherein the sleeve includes a threaded proximal outer portion and a non-threaded distal outer portion.

5. The anchor assembly of claim 4, wherein the non-threaded distal outer portion of the sleeve is coupled to the proximal portion of the anchor.

6. The anchor assembly of claim 1 wherein the anchor includes protrusions disposed about an outer surface of the distal portion.

7. An anchor assembly comprising:

an anchor comprising a distal portion and a proximal portion, the anchor defining a threaded cavity having an opening located in the proximal anchor portion;

an insertion member having a threaded proximal outer portion and a non-threaded distal outer portion, the threaded proximal outer portion configured to threadably engage with the anchor threaded cavity; and

a sleeve having a proximal portion and a distal portion configured to couple about the proximal portion of the anchor,

wherein a through-hole configured to receive a suture is provided in the anchor distal portion and

wherein the sleeve is configured to not cover the through-hole in the anchor distal portion.