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Suction control unit for an endoscope

  • US 4,794,913 A
  • Filed: 12/02/1987
  • Issued: 01/03/1989
  • Est. Priority Date: 12/04/1986
  • Status: Expired due to Term
First Claim
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1. A suction control unit for an endoscope having a channel, comprising:

  • a tubular main body having a suction port in the side wall and a bore;

    an inner tube located in the bore and having an internal hole communicating with the channel of the endoscope;

    a sliding tube located slidably in the axial direction between said main body and said inner tube;

    an operating lever having its proximal end portion secured at an upper position of said sliding tube and its distal end portion extending outward from said main body; and

    passage switching means for connecting the suction port with the endoscope channel or the outside of said main body, when said operating lever is operated to move said sliding tube forward or backward in the axial direction.

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