Perforation suturing method

A method for suturing a perforation formed in a wall of a luminal organ, the method comprising:

• a step of inserting an endoscope into a lumen of the luminal organ via a natural orifice, and introducing the endoscope from the lumen into an abdominal cavity via the perforation;
• a step of bending a tip of the endoscope toward the wall of the lumen organ in a state in which the endoscope is introduced via the perforation from the lumen into the abdominal cavity;
• a step of protruding a needle, inside which a first anchor and a first suture thread attached to the first anchor are housed, from a channel of the endoscope toward the wall of the luminal organ, inserting the needle through the wall from the abdominal cavity toward the lumen at a first insertion point positioned in the vicinity of the perforation, and delivering the first anchor into the lumen to attach the first suture thread to the luminal organ;
• a step of withdrawing the needle from the wall of the luminal organ after delivering the first anchor into the lumen to attach the first suture thread to the luminal organ such that a portion of the first suture thread extends into the abdominal cavity;
• a step of protruding the needle, inside which a second anchor and a second suture thread attached to the second anchor are housed, from the channel of the endoscope toward the wall of the luminal organ, inserting the needle through the wall from the abdominal cavity toward the lumen at a second insertion point positioned in the vicinity of the perforation and opposite to the first insertion point with the perforation positioned between the first insertion point and the second insertion point, and delivering the second anchor into the lumen to attach the second suture thread to the luminal organ;
• a step of withdrawing the needle from the wall of the luminal organ after delivering the second anchor into the lumen to attach the second suture thread to the luminal organ such that a portion of the second suture thread extends into the abdominal cavity;
• and
• a step of sealing
• a muscular layer of the wall of the luminal organ, which is located between the first insertion point and the perforation and faces the abdominal cavity, with
• a muscular layer of the wall of the luminal organ, which is located between the second insertion point and the perforation and faces the abdominal cavity,
• by pulling the portion of the first suture thread extending into the abdominal cavity and the portion of the second suture thread extending into the abdominal cavity into the lumen of the luminal organ through the perforation.