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Endoscope

  • US 6,071,233 A
  • Filed: 09/14/1998
  • Issued: 06/06/2000
  • Est. Priority Date: 10/31/1997
  • Status: Expired due to Term
First Claim
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1. An endoscope comprising:

  • an insert having a distal end portion to be inserted in an area to be observed, said distal end portion of the insert having an observation window, and said insert having a first channel therein which has a first distal end opening portion directed toward a space exterior to the endoscope and through which a first operating tool may be passed;

    a second channel arranged along an axial direction of the insert, said second channel having a second distal end opening portion directed toward the space exterior to the endoscope and through which a second operating tool may be passed;

    wherein said second distal end opening portion of the second channel is formed at a position retracted from the observation window toward a proximal end of the insert.

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