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US 10,058,317 B2Granted
Knotless anchor for instability repair
AssigneeSmith & Nephew, Inc.
InventorsWei Li Fan, Amanda Simard
Life of this patent
Estimating the term…
Abstract
Described herein are suture anchors systems and methods for installing suture anchor systems in bone. Suture anchor systems described herein include a plurality of annular ribs formed around an elongated cylindrical body, a tip adapted for inserting into a bone, one or more longitudinal channels defined by one or more notches in at least one of the annular ribs, and a transverse bore adapted to receive at least one suture and in communication with the longitudinal channel(s). The suture anchor system is partially inserted into the bone, the sutures are adjusted, and insertion is completed, securing the suture anchor and the suture in the bone.
Claims18
A suture anchor comprising:
- an elongated cylindrical body adapted for inserting into a bone, a longitudinal axis of the elongated body extending between distal and proximal ends thereof;
- a transverse bore at a distal portion of the elongated cylindrical body, the transverse bore adapted to receive at least one suture;
- a plurality of ribs circumferentially formed around the elongated cylindrical body closer to the proximal end than the transverse bore, the plurality of ribs including at least one discontinuous rib having at least one notch and at least one continuous rib that continuously encircles the cylindrical body, wherein the at least one continuous rib is closer to the proximal end than the at least one discontinuous rib;
- a longitudinal channel defined by the at least one notch, the longitudinal channel extending proximally from the transverse bore through a portion of an outer surface of the suture anchor, the longitudinal channel in communication with the transverse bore for receiving the suture;
- and
- a cleat defining a narrow opening or slot configured to engage the at least one suture within the narrow opening or slot, wherein the cleat is positioned along a length of the longitudinal channel adjacent to the transverse bore;
- such that engaging the cleat with the at least one suture arrests a slidable motion of the at least one suture.
4 more elements
A method for securing a suture to bone without tying a knot, the method comprising:
- partially driving a suture anchor into bone including driving a distal portion of the suture anchor defining a transverse bore into bone and driving at least one discontinuous rib of the anchor into bone, the at least one discontinuous rib being circumferentially formed around the anchor closer to a proximal end of the anchor than the transverse bore, the at least one discontinuous rib having at least one notch defining a longitudinal channel, the longitudinal channel extending proximally from the transverse bore through a portion of an outer surface of the anchor;
- sliding at least one suture threaded through the transverse bore to a desired position via the longitudinal channel;
- engaging the at least one suture with a cleat defining a narrow opening or slot configured to engage the at least one suture within the narrow opening or slot, wherein the cleat is positioned along a length of the longitudinal channel adjacent to the transverse bore;
- such that engaging the cleat with the at least one suture arrests a slidable motion of the at least one suture;
- and
- driving the anchor further into bone including driving at least one continuous rib continuously encircling the anchor into bone to fix the anchor into the bone and to compress the suture between the bone and the at least one continuous rib securing the suture to the bone.
3 more elements
A method for securing a suture to bone without tying a knot, the method comprising:
- partially driving a suture anchor into bone including driving a distal portion of the suture anchor defining a transverse bore into bone and driving at least one discontinuous rib of the anchor into bone, the at least one discontinuous rib being circumferentially formed around the anchor closer to a proximal end of the anchor than the transverse bore, the at least one discontinuous rib having at least one notch defining a longitudinal channel, the longitudinal channel extending proximally from the transverse bore through at least a portion of an outer surface of the anchor, wherein the longitudinal channel is in communication with the transverse bore;
- sliding at least one suture threaded through the transverse bore to a desired position via the longitudinal channel;
- engaging the at least one suture with a cleat defining a narrow opening or slot configured to engage the at least one suture within the narrow opening or slot, wherein engaging the cleat arrests a slidable motion of the at least one suture;
- and
- driving the anchor further into bone including driving at least one continuous rib continuously encircling the anchor into bone to fix the anchor into the bone and to compress the suture between the bone and the at least one continuous rib securing the suture to the bone, wherein the at least one continuous rib is closer to the proximal end than the at least one discontinuous rib.
2 more elements
Dependencies are inferred from the claim text.