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EP0706779A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Surgical knot pusher device and improved method of forming knots

Assignee: Ethicon Inc
•
Filing: 1995-10-09
•
Granted: —
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Expires: 2015-10-09
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Abstract

Abstract A surgical knot pusher device comprises a thick-walled cannula or tube having a beveled elliptical face and a central channel for slidably receiving one end of a suture. The other end of the suture is slidably inserted in one of a pair of longitudinal grooves formed on the outer surface of the cannula which intersect the elliptical face at the opposite ends of its major axis. One of the longitudinal grooves extends along the longest portion of the cannula and the other longitudinal groove extends along the shortest portion of the of the cannula. As the knot pusher device is inserted into a surgical port, a knot formed in the suture is engaged by the beveled face and advanced toward a surgical site. A notch is formed at the proximal end of the cannula for receiving the end of the suture threaded into the central channel. A threading element comprising an elongated rod with a deformable loop is provided to thread the suture into the central channel of the cannula.

Inventors

  • 👤 Gene W. Kammerer

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 21:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/0401; A61B17/0485; A61B2017/0409; A61B2017/0414; A61B2017/0446; A61B2017/0458; A61B2017/0474; A61B2017/0475; A61B2017/0477; A61B17/06; A61B17/06066; A61B2017/06076; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 72 words
A surgical knot pusher device for advancing knots formed in a suture, comprising: a cannula having a beveled face at its distal end for engaging a knot formed by the ends of one or more sutures and a channel extending axially therethrough for receiving one suture end; and a longitudinal groove formed on an outer surface of said cannula and intersecting the periphery of said beveled face for receiving another suture end.
Claim 2
Dependent Claim 18 words
The knot pusher device of Claim 1, wherein: said beveled face of said cannula has an elliptical configuration.
Claim 3
Dependent Claim 25 words
The knot pusher device of Claim 2, wherein: said longitudinal groove intersects the periphery of said elliptical face at one end of its major axis.
Claim 4
Dependent Claim 23 words
The knot pusher device of Claim 1, wherein: said longitudinal groove extends along the longest portion of said outer surface of said cannula.
Claim 5
Dependent Claim 58 words
The knot pusher device of Claim 4, wherein: the suture end received in said channel becomes the post end of the knot and the other suture end received in said longitudinal groove on the longest portion of said cannula becomes the loop end of the knot when the knot is engaged by said beveled face of said cannula.
Claim 6
Dependent Claim 23 words
The knot pusher device of Claim 1, wherein: said longitudinal groove extends along the shortest portion of said outer surface of said cannula.
Claim 7
Dependent Claim 58 words
The knot pusher device of Claim 6, wherein: the suture end received in said channel becomes the loop end of the knot and the other suture end received in said longitudinal groove on the shortest portion of said cannula becomes the post end of the knot when the knot is engaged by said beveled face of said cannula.
Claim 8
Dependent Claim 23 words
The knot pusher device of Claim 1, which includes: anchor means for securing one suture end at the proximal end of said cannula.
Claim 9
Dependent Claim 25 words
The knot pusher device of Claim 1, which includes: a threading element slidably inserted in said channel for threading one suture end into said cannula.
Claim 10
Dependent Claim 31 words
The knot pusher device of Claim 1, wherein: said beveled face is slanted at an angle in the range of 15° to 75° relative to the longitudinal axis of said cannula.
Claim 11
Dependent Claim 24 words
The knot pusher device of claim 1, wherein: said beveled face is slanted at about 40° relative to the longitudinal axis of said cannula.

References Cited (Backward Citations)

US2247841A Cited
US2595086A Cited
US4602635A Cited
US5196691A Cited
US5217471A Cited
US5144961A Cited
US5234444A Cited
US5284485A Cited
US5234445A Cited
US5282809A Cited

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