Needle holder and method of using same

A needle holder comprising:

• a flexible tube;
• and
• a grasper located distally relative to the flexible tube, the grasper comprising:
• a first jaw including:
• a bottom surface;
• a first wall surface extending from the bottom surface, the first wall surface extending in a height direction intersecting a longitudinal axis of the flexible tube;
• a second wall surface extending from the bottom surface, the second wall surface extending in the height direction, wherein the bottom surface, the first wall surface and the second wall surface form a groove;
• a first protrusion including a first proximal surface facing in a proximal direction along the longitudinal axis;
• and
• a second protrusion including a second proximal surface facing in the proximal direction, the first protrusion and the second protrusion being located in a distal end portion of the first jaw, and the first protrusion and the second protrusion protruding in the height direction;
• and
• a second jaw movable relative to the first jaw between an open position and a closed position,
• wherein the first jaw includes:
• a first outer edge surface extending in the proximal direction from the first proximal surface of the first protrusion, the first outer edge surface being transverse to the height direction, and
• a first guiding surface extending continuously from an inner edge of the first outer edge surface to the first wall surface so as to be transverse to the first outer edge surface and the first wall surface.