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US6767037: Sliding and locking surgical knot

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Filing Information

Inventor(s) Richard F. Wenstrom, Jr. ·
Assignee(s) DePuy Mitek, Inc. ·
Attorney/Agent(s) Nutter McClennen & Fish LLP ·
Primary Examiner Julian W. Woo ·
Assistant Examiner Paul A Roberts ·
Application Number US9966565
Filing date 09/27/2001
Issue date 07/27/2004
Prior Publication Data
Predicted expiration date 09/27/2021
U.S. Classifications 289/12  · 606/144  · 606/139  ·
International Classifications --
Kind CodeB2
International Classifications 606 72 · 606222 · 606224 · 606232 · 606148 · 606139 · 606144 · 112156 · 112416 · 112 22 · 289 12 · 289 15 · 289 3 · 289 4 ·
17 Claims, 10 Drawings


Abstract

The present invention provides a sliding and locking knot that does not require an additional half hitch to lock and suture retaining structures having such a knot. The sliding and locking knot has a low knot profile suitable for use in surgical areas with low clearance and to avoid interference with surrounding tissue. Additionally, the sliding and locking knot maintains suture strength and is easy to form. Also provided are methods for anchoring tissue to a bony structure using the bone anchor and sliding and locking knot of the present invention.

Independent Claims | See all claims (17)

  1. 1. A method for forming a sliding and locking surgical knot, comprising: forming a post at a proximal-most end of a filament and a major loop on the post; threading a distal-most free end of the filament through the major loop to form a minor loop; coiling the free end of the filament around the major loop after the minor loop has been formed to form at least one coil bisecting the major loop; and threading the free end of the filament through the minor loop.
  2. 7. A sliding and locking surgical knot, comprising: a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop; and a distal-most free end of the filament extending from the minor loop; wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch.
  3. 11. A suture retaining structure, comprising: a body extending between a first leading end and a second trailing end, the body having thereon at least one bone engaging element; a suture receiving aperture within the body; and a sliding and locking surgical knot extending from the suture receiving aperture, the sliding and locking knot comprising: a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop; and a distal-most free end of the filament extending from the minor loop; wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch.
  4. 12. A method for anchoring tissue to a bony structure, comprising: providing a suture retaining structure, comprising a body extending between a first leading end and second trailing end, the body having thereon at least one bone engaging element, a suture receiving aperture within the elongate body, and a sliding and locking surgical knot extending from the suture receiving aperture, the sliding and locking knot comprising a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop, and a distal-most free end of the filament extending from the minor loop, wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch; placing a free end of the tissue through the major loop of the sliding and locking knot; inserting the suture retaining structure into a bone cavity within the bony structure; sliding the knot down the post to bring the tissue proximate to the bony structure; and locking the knot in place.
  5. 15. A method for anchoring tissue to a bony structure, comprising: providing a suture retaining structure, comprising a body extending between a first leading end and second trailing end, the body having thereon at least one bone engaging element, and a suture receiving aperture within the elongate body; threading a suture filament through the suture receiving aperture; Inserting the suture retaining structure into a bone cavity within the bony structure; creating a sliding and locking knot by forming a post at a proximal-most end of the filament and a major loop on the post, threading a distal-most free end of the filament through the major loop to form a minor loop, coiling the free end of the filament around the major loop after the minor loop has been formed to form at least one coil bisecting the major loop, and threading the free end of the filament through the minor loop; placing a free end of a soft tissue through the major loop of the sliding and locking knot; sliding the knot down the post to bring the tissue proximate to the bony structure; and locking the knot in place.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4779616* Johnson Oct 1988
US5178629 Ethicon, Inc. Kammerer Jan 1993
US5217486 Mitek Surgical Products, Inc. Rice et al. Jun 1993
US5395382* Ethicon, Inc. DiGiovanni et al. Mar 1995
US5405352 Weston Apr 1995
US5441502 Mitek Surgical Products, Inc. Bartlett Aug 1995
US5472446 de la Torre Dec 1995
US5522845 Mitek Surgical Products, Inc. Wenstrom, Jr. Jun 1996
US5527323* General Surgical Innovations, Inc. Jervis et al. Jun 1996
US5549618 Coral Medical Fleenor et al. Aug 1996
US5609597* Lehrer Mar 1997
US5681331* de la Torre et al. Oct 1997
US5749879* Medtronic, Inc. Middleman et al. May 1998
US5752964* Mericle May 1998
US5782866 Ethicon, Inc. Wenstrom, Jr. Jul 1998
US5824011* Kevin R. Stone Stone et al. Oct 1998
US5893592* Ethicon Endo-Surgery, Inc. Schulze et al. Apr 1999
US6143006 Chan Nov 2000
* cited by examiner

Other Publications

Clifford Ashley, The Ashley Book of Knots, 1944, DoubleDay, The entire book is relevant. However, the most relevant sections were photocopied and placed in the file.*
* cited by examiner

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
US7608092 Biomet Sports Medicince, LLC Cory Schaffhausen Oct 2009
US7615076 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Nov 2009
US7189235 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2007
US7601165 Biomet Sports Medicine, LLC Kevin T Stone Oct 2009
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US7909879 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2011
US7909836 Neotract, Inc. Matt McLean et al. Mar 2011
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US7896891 Neotract, Inc. Joseph Catanese, III et al. Mar 2011
US7658751 Biomet Sports Medicine, LLC Kevin T Stone et al. Feb 2010
US7670379 Anulex Technologies, Inc. Joseph C. Cauthen Mar 2010
US7749273 Anulex Technologies, Inc. Joseph C. Cauthen, III et al. Jul 2010
US7749250 Biomet Sports Medicine, LLC Kevin T. Stone et al. Jul 2010
US7758594 Neotract, Inc. Theodore Charles Lamson et al. Jul 2010
US7766923 Neotract, Inc. Joseph Catanese, III et al. Aug 2010
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