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US5643319: Device for applying a meniscal staple

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Filing Information

Inventor(s) David T. Green · Robert J. Geiste · Wayne C. Person ·
Assignee(s) United States Surgical Corporation ·
Primary Examiner Sam Rimell ·
Application Number US8345539
Filing date 11/28/1994
Issue date 07/01/1997
Predicted expiration date 05/13/2011
U.S. Classifications 606/218  · 606/216  ·
International Classifications A61F 504  ·
Kind CodeA
International Classifications 606216-221;139;140;142;144;148 ·
Related U.S. Application DataCROSS REFERENCE TO RELATED APPLICATION
This application is a continuation of U.S. application Ser. No. 07/947,753, filed Sep. 21, 1992, now abandoned, which is a continuation in part of U.S. application Ser. No. 07/699,991, filed May 13, 1991, now U.S. Pat. No. 5,269,783.
45 Claims, No Drawings


Abstract

An apparatus for inserting a staple into torn tissue such as the meniscus of the knee. The apparatus includes a pair of shafts individually movable in a longitudinal direction which are actuable from a handle mechanism. The shafts are movable sequentially so that the shafts disjunctively advance the prongs of the staple which is releasably held adjacent distal end portions of the shafts. A further embodiment of the device consists of a pair of needles detachably secured to a pair of anchoring members having a plurality of barb-like projections extending outwardly therefrom. The anchoring members are joined by a suture which connects adjacent the trailing ends of the anchoring members opposite the penetration end of the needles. The needles are engaged with the anchoring members to transmit a first pushing force applied to the needles to advance the anchoring members into the tissue, and are releasable from their engagement with the anchoring members responsive to a second pulling force applied to the needles in a direction opposite the pushing direction.

Independent Claims | See all claims (45)

  1. 1. A surgical instrument for applying surgical fasteners to torn tissue, comprising:a handle mechanism;an elongated body portion extending from said handle mechanism, said body portion defining a longitudinal axis of said instrument;means positioned adjacent a distal end of said body portion remote from said handle mechanism for releasably engaging a fastener;advancing means including at least one shaft member associated with said handle mechanism and extending longitudinally within said body portion for linearly advancing said engaging means along said longitudinal axis to drive said fastener into said torn tissue; anda release member associated with said advancing means said release member being moveable into operative engagement with said advancing means to release said at least one shaft member to linearly retract said engaging means along said longitudinal axis to disengage said fastener from said engaging means, said fastener being positioned in said torn tissue.
  2. 21. An endoscopic or laparoscopic surgical instrument for applying a surgical fastener to torn tissue, said fastener including a first leg and a second leg joined by a flexible material, said instrument comprising:a handle mechanism;an elongated body portion extending from said handle mechanism;means positioned at a distal end of said body portion for releasably engaging said first leg of said fastener and said second leg of said fastener;a first shaft member associated with said handle mechanism for advancing said first leg of said fastener into said tissue;a second shaft member associated with said handle mechanism for advancing said second leg of said fastener into said tissue subsequent to advancement of said first leg; andmeans associated with said handle mechanism for releasing said first and second shaft members to retract said engaging means to release said fastener, said fastener being positioned in said tissue.
  3. 31. A surgical instrument for applying a surgical fastener to torn tissue, said fastener including a first leg and a second leg joined by a flexible material, said instrument comprising:a handle mechanism including at least one movable member;a body portion extending from said handle mechanism;means for releasably engaging said fastener positioned at an end of said body portion remote from said handle mechanism;an advancing mechanism positioned in and extending through said body portion for advancing said first leg of said fastener into said tissue, and subsequently advancing said second leg of said fastener into said tissue after advancement of said first leg, said advancing mechanism being actuated upon movement of said handle mechanism.
  4. 35. In a surgical instrument having a handle and a body portion extending from said handle, the improvement comprising:fastener means including a first leg and a second leg joined by a flexible material disposed at a distal end of said body portion;means positioned at said distal end of said body portion for releasably engaging said fastener means;a first shaft member associated with said handle mechanism and extending through said body portion for advancing said engaging means to drive said first leg into body tissue; anda second shaft member associated with said handle mechanism and extending through said body portion for advancing said engaging means to drive said second leg into body tissue subsequent to advancement of said first leg.
  5. 39. A surgical instrument for applying a surgical fastener to torn tissue, said fastener including a first leg and a second leg joined by a flexible material; said instrument comprising:a handle;an elongated body portion having at least one inner rod within an outer tube and defining a longitudinal axis and extending at a proximal end from said handle, said. fastener being positioned at a distal end of said body portion;a needle mechanism at said distal end of said body portion for releasably engaging said fastener, said needle mechanism having a tip configured to penetrate tissue to facilitate insertion of said fastener into tissue;an advancing mechanism disposed in said handle including a ratchet mechanism to permit incremental linear advancement of said needle mechanism along said longitudinal axis upon movement of said handle, said inner rod of said body portion coupling said advancing mechanism to said needle mechanism; anda release member for disengaging said ratchet mechanism to permit retraction of said inner rod and said needle mechanism after said fastener is positioned in tissue.
  6. 40. A fastener applying device, comprising:a movable handle;an elongated member extending distally from the movable handle;at least one rack and pawl mechanism operably associated with the handle; andat least one shaft operably connected to a respective rack and pawl mechanism, the at least one shaft extending within the elongated member and having a distal end configured to receive a fastener;wherein movement of the handle causes movement of the at least one shaft within the elongated member and wherein the at least one rack and pawl mechanism includes first and second rack members and pawl members, and the at least one shaft includes first and second shafts.
  7. 44. A fastener applying device for applying a fastener to torn tissue, the fastener including a first leg and a second leg joined by a flexible material, the device comprising:a movable handle;a first shaft operably connected to the movable handle and having a distal end configured to engage the first leg of the fastener;a second shaft operably connected to the movable handle and having a distal end configured to engage the second leg of the fastenerwherein the first shaft is movable independent of the second shaft to move the first leg of the fastener distally independent of the second leg of the fastener.
  8. 45.45. A fastener applying device for applying surgical fasteners having a pair of tissue penetrating leg members joined to each other by a flexible portion, said device comprising:a movable handle;an elongated member extending from the movable handle;first and second shaft members slidably disposed in said elongated member;an advancing mechanism disposed between and operably connected to said shaft members and said movable handle to permit selective advancement of either the first shaft member or both the first and second shaft members;wherein the shaft members terminate at a distal end of said elongated member remote from the movable handle in a fastener engaging surface, such that movement of said movable handle causes said advancing mechanism to move said shaft member and the fastener engaging surface towards the distal end of the elongated member to drive a fastener into tissue.

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Other Publications

Daniel F. Justin, "A Needle Guided Resorbable Staple For Arthroscopic Meniscal Repair," University of Central Florida, Department of Mechanical Engineering, pp. 127-130.
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