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Surgical suturing instrument

  • US 4,164,225 A
  • Filed: 12/28/1977
  • Issued: 08/14/1979
  • Est. Priority Date: 12/28/1977
  • Status: Expired due to Term
First Claim
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1. A surgical suturing instrument comprising(a) a first jaw;

  • (b) a second jaw for cooperating with the first jaw to clamp tissue to be sutured, said second jaw having a handle;

    (c) an actuator arm manipulable jointly with the handle;

    (d) means for pivotally interconnecting said jaws and said arm for angular movement relative to each other about a common axis from which said jaws extend forwardly and said handle and said arm extend rearwardly;

    (e) means, carried by said first jaw and operable by angular movement of said arm relative to said first jaw, for applying a suture to tissue clamped between the jaws; and

    (f) latch means for selectively interlocking said first jaw with said arm and with said second jaw in succession during progressive angular movement of said arm in a closing direction toward said handle, such that movement of said arm in said direction initially moves said first jaw to a tissue-clamping, closed position relative to said second jaw and thereafter operates said suture-applying means while the jaws are interlocked;

    wherein the improvement comprises;

    (g) said latch means comprising a latch member pivotally mounted on said first jaw and including(i) a first portion for engaging said arm when said first jaw is away from said closed position to interlock said arm and said first jaw and thereby to transmit, to said first jaw, angular motion of said arm in said closing direction, and(ii) a second portion engageable by said second jaw for pivotally moving said latch member in a given direction to displace said first portion out of interlocking engagement with said arm as said first jaw arrives at said closed position.

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