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Surgical instrument locking mechanism

  • US 5,425,743 A
  • Filed: 10/19/1993
  • Issued: 06/20/1995
  • Est. Priority Date: 04/06/1992
  • Status: Expired due to Term
First Claim
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1. An endoscopic or laparoscopic surgical instrument comprising:

  • a handle assembly including a barrel portion, a stationary handle, and a pivoting handle;

    a body assembly having a pair of coaxial members attached at one end to said handle assembly, including an inner rod member slidable within an outer tube member in response to movement of said pivoting handle of said handle assembly, said body assembly terminating at an end remote from said handle assembly at which end is provided a reciprocatingly movable tool mechanism; and

    locking means positioned within said barrel portion of said handle assembly including a locking block and a latch member selectively engagable and disengagable with said locking block to lock said tool mechanism, said locking means being actuable independent of the movement of said pivoting handle.

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