Patent ID: 7722627

Claim:
A surgical instrument for ligating internal tissue of a cavity in the human body by means of an elastic cord, comprising: a single wall inner tube, having a distal and a proximal part and an outermost surface, with the distal part having a distal end adapted to carry an elastic cord strained concentrically around it and with the proximal part arranged to be connected to a vacuum source, wherein at least one tube bend is formed between the distal and proximal part; and an outer discharge member to push said elastic cord beyond the distal end of said tube to close around the stem of a tissue when inserted in the tube, the discharge member comprising an outer discharge part displaceably arranged concentrically around a portion of the distal part, an actuating part displaceably arranged concentrically around a portion of the proximal part, and a flexible connection part following said tube bend and arranged to transfer a movement of the actuating part to the discharge part, wherein an entirety of the outer discharge member is arranged outside of the outermost surface of the single wall inner tube.