Arthroscopic knot pusher and suture cutter
AssigneeCeterix Orthopaedics, Inc.
InventorsWilliam R. GEORGE, Michael J. HENDRICKSEN, Chad R. YOLLAND, Michael MURILLO
Life of this patent
Estimating the term…
Abstract
Knot pushers and suture cutter apparatuses to be used arthroscopically, for example, in an arthroscopic knee surgery may be operated with a single control to both lock the suture within the distal end of the apparatus and cut the suture once the knot has been pushed to the appropriate location. The apparatus may include a safety lock preventing deployment of the cutter until the safety lock (e.g., cutter release) has been released.
Claims17
A method of pushing a suture knot with a surgical knot pusher and suture cutter apparatus, the method comprising:
- sliding a control on a handle of the apparatus proximally to retract an inner member proximally;
- placing a suture into a lateral side opening of an elongate holding tube of the apparatus so that the suture extends from a distal end of the apparatus and also from the lateral side opening;
- advancing the inner member distally within the elongate holding tube to secure the suture between the inner member and the elongate holding tube;
- pushing a knot on the suture by advancing the apparatus distally over the suture;
- engaging a cutter release on the handle to permit a tubular cutter on the outside of the elongate holding tube to be advanced distally;
- sliding the control on the handle of the apparatus distally to advance the tubular cutter after engaging the cutter release;
- and
- cutting the suture using a distal-facing beveled edge of the tubular cutter.
A method of pushing a suture knot with a surgical knot pusher and suture cutter apparatus, the method comprising:
- placing a surgical knot pusher and cutter apparatus over a suture so that the suture passes through a lateral slot of an elongate holding tube of the apparatus, the lateral slot extending from a distal end of the elongate holding tube, wherein the holding tube extends from a handle;
- moving an inner mandrel within the holding tube to extend the inner mandrel distally within the elongate holding tube, the inner mandrel having a lateral notch extending proximally from a distal end of the inner mandrel along a side region of the inner mandrel, wherein extending the inner mandrel distally captures the suture between the notch of the inner mandrel and the holding tube;
- preventing axial movement of the inner mandrel until a lock out tab is released, wherein the lock out tab is coupled to the inner mandrel;
- pushing a knot on the suture by advancing the apparatus distally over the suture;
- and
- axially moving a tubular cutter relative to the holding tube, wherein the tubular cutter is positioned around the holding tube, to cut an end of the suture when the tubular cutter is extended distally;
- wherein the axial motion of both the inner mandrel and the cutter is controlled by a control on the handle.
Dependencies are inferred from the claim text.