Fig. 1.

a Verification setup. The box is secured to the stand, and the suturing inside the box is recorded simultaneously using a mobile phone camera and a monitor. b The five cardboard boxes with decreasing volume. A trapdoor is cut into the anterior and posterior surfaces to record the procedure and place the suturing device. The ports are arranged in a straight line as shown in the diagram, and the suturing target is positioned on the opposite side of the camera port within the box. c The easy task of suturing with A-Lap Mini inside the box. d The difficult task of suturing the posterior wall of the intestine positioned 6 mm within the lumen, a procedure akin to pediatric laparoscopic hepaticojejunostomy