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Cautery hemostatic unit

  • US 4,708,136 A
  • Filed: 02/06/1987
  • Issued: 11/24/1987
  • Est. Priority Date: 09/13/1984
  • Status: Expired due to Term
First Claim
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1. A cautery hemostatic unit deliverable through a tool channel of an endoscope comprising:

  • (a) a tubular main body part having proximal and distal ends attached at its proximal end to a flexible sheath, said main body part having a through-hole in the direction of the central axis and a plurality of slotted longitudinal channels formed on the outer surface of the main body;

    (b) an electrically energized heating means inserted into said through-hole at the distal end of said main body part;

    (c) a tubular cap having a closed, hemispherical end and a plurality of slots open to the proximal end corresponding in number and radial position to said slots on said main body part, said cap having a non-adherent outer coating and an inner diameter sized so as to fit snugly over the distal portion of said main body part;

    (d) means for detachably securing said cap on said main body part;

    (e) means for electrically connecting said heating means to an external controller through said main body part and said sheath; and

    (f) means for delivering a non-toxic liquid through said sheath to said slots in said main body part wherein said slots on said main body part terminate distally, with a gentle slope to the surface of the main body, at a point not less than the radius of curvature of the hemispherical portions of said cap from the distal extremity of the cap, said slope having an angle of curvature which directs said non-toxic liquid at an angle of not more than 20°

    to the longitudinal axis of said main body.

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