Patent ID: 8979884
Filing Date: 2015-03-17
Classification: A61B

Abstract:
1. Apparatus comprising: a sleeve having a proximal end and a distal end and adapted to be slid over and mounted to an exterior of an endoscope; a proximal balloon secured to the sleeve proximal to a distal end of the endoscope; a double pull mechanism mounted to the sleeve, the double pull mechanism comprising a bearing structure mounted to the distal end of the sleeve proximal to the distal end of the endoscope and a double pull line movably disposed on the bearing structure, the double pull line comprising a retract line and an extend line; a pusher element mounted to the retract line of the double pull mechanism proximal to the bearing structure, the pusher element having a length substantially shorter than a length of the sleeve; and a distal balloon secured to a distal end of the pusher element; the sleeve, the double pull mechanism and the pusher element being configured such that (i) when the retract line is pulled proximally, the distal balloon is pulled proximally by the pusher element toward the proximal balloon to a position adjacent to but distal to the proximal balloon, and (ii) when the extend line is pulled proximally, the distal balloon is pushed distally by the pusher element away from the proximal balloon.