A handle for a medical device, comprising: a proximal segment defining a proximal lumen extending longitudinally therethrough, the proximal lumen being sized and shaped to receive an endoscopic medical device therein; a medial segment received within a distal portion of the proximal segment, the medial segment having an outer diameter smaller than an inner diameter of the proximal segment and defining a medial lumen extending therethrough open to the proximal lumen; and a distal segment received within a distal portion of the medial segment and defining a distal lumen extending therethrough open to the medial lumen, the distal segment having an outer diameter smaller than an inner diameter of the medial segment, wherein the medial segment includes a first movement limiting mechanism configured to limit movement of an endoscopic medical device inserted through the proximal, medial and distal lumens along an axis of the distal lumen by limiting proximal movement of the medial segment relative to the proximal segment, and the medial segment includes a second movement limiting mechanism configured to limit advancement and retraction of an endoscope attached to a distal end of the distal body portion by locking a position of the distal segment relative to the medial segment, wherein the distal portion includes an attachment sized and shaped to engage a corresponding attachment at a proximal end of an endoscope to which the handle is to be mounted, characterized in that the proximal segment is rotatably coupled to the distal segment and is adapted to non-rotatably couple to the endoscopic medical device to be mounted therein so that rotation of the proximal segment rotates the endoscopic medical device inserted therein within the distal segment and a working channel of an endoscope coupled thereto. a proximal segment defining a proximal lumen extending longitudinally therethrough, the proximal lumen being sized and shaped to receive an endoscopic medical device therein; a medial segment received within a distal portion of the proximal segment, the medial segment having an outer diameter smaller than an inner diameter of the proximal segment and defining a medial lumen extending therethrough open to the proximal lumen; and a distal segment received within a distal portion of the medial segment and defining a distal lumen extending therethrough open to the medial lumen, the distal segment having an outer diameter smaller than an inner diameter of the medial segment, wherein the medial segment includes a first movement limiting mechanism configured to limit movement of an endoscopic medical device inserted through the proximal, medial and distal lumens along an axis of the distal lumen by limiting proximal movement of the medial segment relative to the proximal segment, and the medial segment includes a second movement limiting mechanism configured to limit advancement and retraction of an endoscope attached to a distal end of the distal body portion by locking a position of the distal segment relative to the medial segment, wherein the distal portion includes an attachment sized and shaped to engage a corresponding attachment at a proximal end of an endoscope to which the handle is to be mounted, characterized in that the proximal segment is rotatably coupled to the distal segment and is adapted to non-rotatably couple to the endoscopic medical device to be mounted therein so that rotation of the proximal segment rotates the endoscopic medical device inserted therein within the distal segment and a working channel of an endoscope coupled thereto.