Suture based closure device for use with endoscope

A medical system comprising:

• a delivery system including a delivery lumen extending along a delivery system lumen axis;
• and
• an elongate tool guide defining a tool lumen extending along a tool lumen axis, the elongate tool guide including a distal end region that is pivotably coupled relative to the delivery system and pivotable between a compact delivery configuration in which the tool lumen axis is substantially parallel with the delivery system lumen axis and a working configuration in which the tool lumen axis intersects the delivery system lumen axis adjacent the distal end region of the elongate tool guide.

A medical system, comprising:

• an endoscope including a working lumen extending through the endoscope;
• and
• an elongate tool guide including an elongate tool guide tubular body defining a tool lumen and having a distal end region that is pivotably secured relative to a distal region of the endoscope in order to guide tools extended through the tool lumen, the elongate tool guide pivotably movable between a delivery configuration in which the distal end region of the elongate tool guide is substantially parallel with the endoscope, and a working configuration in which the distal end region of the elongate tool guide is pivoted relative to the endoscope and the distal end region of the elongate tool guide is directed toward the working lumen of the endoscope.