×

Biopsy apparatus for use in endoscopy

  • US 5,373,854 A
  • Filed: 07/15/1993
  • Issued: 12/20/1994
  • Est. Priority Date: 07/15/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A biopsy apparatus for obtaining tissue samples from a body, comprising:

  • a flexible sheath having a longitudinal axis and first and second ends and including a control wire extending therethrough, said control wire being longitudinally movable within said sheath;

    means at said first end of said sheath to control longitudinal movement of said control wire therethrough;

    a pair of biopsy jaw assemblies positioned adjacent said second end of said sheath;

    at least one of said jaw assemblies being movable between open and closed positions with respect to the other of said jaw assemblies, said at least one jaw assembly having a hinge means as a part of an outside wall of said at least one jaw assembly to allow pivotal movement of said at least one jaw assembly about a pivot point on said outside wall of said at least one jaw assembly;

    actuator means for coupling said pair of biopsy jaw assemblies to said control wire, said actuator means including coupling means to couple said actuator means to said control wire, said coupling means being longitudinally movable relative to said sheath along with said control wire, and linkage means secured to said at least one movable jaw assembly and coupled with said coupling means for acting on said at least on jaw assembly to apply force outwardly or inwardly relative to said at least one jaw assembly during longitudinal movement of said control wire to open and close said at least one jaw assembly.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×