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Medical instrument for use in combination with an endoscope

  • US 6,110,127 A
  • Filed: 01/18/1999
  • Issued: 08/29/2000
  • Est. Priority Date: 02/17/1998
  • Status: Expired due to Term
First Claim
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1. A medical instrument for use in combination with an endoscope, comprising:

  • an elongated insertion section to be inserted into a body through an instrument channel of an endoscope, said insertion section having a sheath comprising an inner tube and an outer tube capable of moving back and forth in an axial direction with respect to the inner tube;

    an operation section connected to a proximal end of the insertion section, connected to a proximal end of said inner tube, and having a suction device for generating a suction force; and

    a sampling unit connected to a distal end of the insertion section and adapted to be driven by operating the operation section, for sampling a part of a living tissue present in the body, said sampling unit comprising a sample receiving chamber provided on a distal portion of said inner tube and having a single opening, through which a living tissue is to be drawn by the suction force applied from said inner tube, and a cutting unit for cutting a part of the living tissue drawn into said sample receiving chamber as said inner tube and said outer tube are moved relative to each other in the axial direction.

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