TissueDB/Simulators/Meckel's Diverticulectomy Simulator

The Meckel's Diverticulectomy Simulator is a low-cost laparoscopic trainer built from locally available materials for practising Meckel's diverticulectomy and small-bowel handling.^[1] A single flat bed sheet is rolled and shaped to represent an ileal segment, Meckel's diverticulum and mesentery. Rubber bands secure the tissue geometry, numbered tape labels identify bowel sections, and a cardboard holder mounts the model inside a laparoscopic box trainer.

Step 1. Cut one non-fitted flat bed sheet to 2.5 feet × 2 feet (76.2 cm × 60.96 cm).

The source describes thin white fabric as suitable and permits a light-coloured non-printed material as an alternative. It does not specify a weave.

Step 2. Roll the sheet along its 2.5-foot side until 14 inches (35.56 cm) of unrolled sheet remains.

The rolled portion represents the bowel. The unrolled portion represents the mesentery.

Step 3. Measure and mark eight hole positions beneath the rolled portion of the sheet.

Space the holes approximately 4 inches (10 cm) apart.

Step 4. Cut the eight small holes at the marked positions.

Step 5. Push rubber bands through the holes and secure them around the rolled sheet.

Cut off excess rubber-band loops where required so they do not interfere with the simulation.

Step 1. Choose one end of the simulated bowel.

Step 2. Pull approximately 3–6 cm of the rolled sheet outward.

Step 3. Secure the protruding section with a rubber band to form the simulated Meckel's diverticulum.

The developer instructions contextualise the model against the reported 1–12 cm clinical range for Meckel's diverticulum. The simulator itself uses the source-described 3–6 cm projection.

Step 1. Cut fourteen small tape pieces approximately 1.6 cm × 1.6 cm.

Step 2. Label the pieces 1 through 14 with a marker or Sharpie.

Step 3. Begin at the end opposite the Meckel's diverticulum.

Place label 1 to the right of the first rubber band.

Step 4. Turn the bowel assembly over and place label 2 between the first two rubber bands.

Step 5. Continue alternating the numbered labels between the upper and lower surfaces until reaching the diverticulum end of the bowel.

Step 1. Bunch the free end of the unrolled mesentery material.

Step 2. Wrap several rubber bands around the bunched end to form the mesentery root.

Step 1. Cut one piece of cardboard according to the Part F cutting template.

The overall template measures 338 mm × 265 mm. Refer to page 6 of the source build-instructions PDF for the detailed dimensions.

Step 2. Distinguish the template's cut lines from its fold lines and maintain the indicated corrugation direction.

Step 3. Bend the centre section upward.

Step 4. Fold the side pieces upward 4 cm from the edge.

The central flap and opening support the simulated mesentery root and attach the bowel module to the trainer floor.

Step 1. Insert the bunched bowel/mesentery-root end through the opening in Part F with the odd-numbered side facing upward.

Step 2. Secure the bowel assembly to the holder with a rubber band.

Step 3. Flip the bowel over to conceal the mesentery root.

Step 1. Turn the laparoscopic box trainer upside down.

Step 2. Insert the Part F flaps into the slits used by the box trainer's stability flaps.

Step 3. Adjust the stability flaps as necessary so that Part F and the stability components share the same slits.

• The developer build directly supports the Bowel, Meckel's Diverticulum and Mesentery relationships on this page.
• All three are formed from the same flat bed sheet / thin light-coloured fabric.
• The source does not specify the textile weave.
• `Cloth, Woven` is therefore a TissueDB canonical/navigation classification rather than a source claim about construction.
• The source explicitly specifies 10 rubber bands. Preserve the source term even where broader TissueDB governance groups the item differently.
• Tape labels and rubber bands are structural/training components and do not represent tissues.
• Cardboard Part F is a holder, not anatomy.
• The source reports no build cost.
• The source reports no total build time.
• The former US$15 figure was an estimate and is not used in the canonical Cost field.
• Developer curriculum material does not by itself establish formal validation of this individual simulator.
• No Structure implementation is introduced by this correction.

The build sequence and dimensions above are supported by the ALL-SAFE developer module and indexed text of the linked nine-page build-instructions PDF. The previous audit could not complete direct page-image/render verification of that PDF, so that file-level visual-verification item remains open rather than being represented as completed.