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TissueDB/Tissues/Bowel

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(Redirected from TissueDB/Tissues/Colon)
Labelled drawing of the abdomen showing the stomach, the duodenum, jejunum and ileum, and the large intestine around them
The small intestine (duodenum, jejunum and ileum) inside the frame of the large intestine.
License: CC-BY-3.0 by BruceBlaus

Bowel (intestinal wall) comprises the multilayered tissue structure of the small and large intestine. The small intestines and the colon — together the gut — are both modelled here. The cecal wall is the layered wall of the cecum, the first part of the large intestine and the segment the appendix arises from. Meckel's diverticulum is a remnant of the vitelline duct on the ileum, and it is the target of resection practice.

Materials

Material Visual Tactile Simulator Notes
Cigarette Paper Neonatal Enterocutaneous Anastomosis Simulator Thin cigarette paper, especially when moistened, simulates the friable neonatal bowel wall.
Modeling Balloon Trocar Placement TrainerAn inflated modeling balloon stands in for the bowel.
Flat Bed Sheet Meckel's Diverticulectomy Simulator A rolled woven sheet forms a tubular bowel segment.
SausageAbdominal Wall Defect Simulator (Medeiros)Sausage forms the herniated bowel loops of the gastroschisis model, for visual recognition of herniated viscera. It is perishable, so that model is effectively single-use; the authors suggest a red cotton ball wrapped in cellophane tape as a durable substitute. Fake blood makeup colours the loops, and the source notes the blood can be mistaken for bowel damage.[1]
Glove Acute Appendicitis Simulator, Appendectomy Simulator, Open Appendectomy Simulator (Matthews) An exam or surgical glove forms the appendix–cecum–terminal ileum complex.
Cotton balls Appendectomy Simulator, Open Appendectomy Simulator (Matthews) In the Matthews model cotton balls fill the base of the glove to form the cecum.
Castable silicone--Bowel Anastomosis Simulator (Habti)Ecoflex 00-30. The authors note that knotting differs from real tissue because the simulator has more recoil than real bowel.[2]
---Thoracoscopic Diaphragmatic Hernia Repair Simulator (Barsness)Synthetic herniated viscera. Multiple loops of artificial intestine are herniated through the diaphragmatic defect and reduced during the simulated thoracoscopic repair. The source notes poor haptic feedback against real neonatal tissue.[3]
Synthetic fabric mesh + Styrofoam Intra-abdominal Bleeding Simulator (Fernandes) Fine synthetic-fabric mesh with a little polystyrene microsphere filling forms the small intestine and large bowel.[4]
Castable silicone + red pigment Laparoscopic Appendectomy Simulator (Roche) SmoothOn EcoFlex 00-10. Represents the small intestine. Reusable.[5]
Castable silicone + red pigment + foam filler Laparoscopic Appendectomy Simulator (Roche) SmoothOn EcoFlex 00-10. Represents the cecum and ascending colon. Reusable.[5]
Castable silicone + thickener + red flocking powder + red pigment Laparoscopic Appendectomy Simulator (Roche) SmoothOn EcoFlex 00-30. Represents the appendix; firmer than 00-10 for a realistic tensile feel that withstands endoloop tightening. Single-use.[5]
  • Mesentery — carries vascular supply to bowel
  • Peritoneum and Serosa — serosal covering of bowel
  • Blood — mesenteric vessels
  • Taenia coli — three longitudinal smooth-muscle bands on the outer wall of the cecum and colon, converging at the base of the appendix

References

[edit source]
  1. ↑ Medeiros GA, Gualberto IJN, da Silva CHND, Diniz AMB, de Santana JBF, Volpe FP, Gadde R, Mazzo A, de Oliveira RC, Sbragia L. Development of a low-cost congenital abdominal wall defect simulator (wall-go) for undergraduate medical education: a validation study. BMC Medical Education. 2023;23(1):966. Open access (CC BY 4.0). DOI: 10.1186/s12909-023-04929-3. PMID 38102605.
  2. ↑ Habti M, Bénard F, Arutiunian A, Bérubé S, Cadoret D, Meloche-Dumas L, Torres A, Kapralos B, Mercier F, Dubrowski A, Patocskai E (2021). "Development and Learner-Based Assessment of a Novel, Customized, 3D Printed Small Bowel Simulator for Hand-Sewn Anastomosis Training." Cureus 13(12):e20536. DOI: 10.7759/cureus.20536. PMID: 35070566.
  3. ↑ Barsness KA, Rooney DM, Davis LM. The development and evaluation of a novel thoracoscopic diaphragmatic hernia repair simulator. J Laparoendosc Adv Surg Tech 2013;23(8):714–718. DOI 10.1089/lap.2013.0196. PMID 23789735.
  4. ↑ Fernandes CO, Rodrigues LR, Silva do Amaral MLBS, de Morais Rodrigues SJ, Marton-Filho MA. Low-cost simulator for intra-abdominal bleeding. Rev Col Bras Cir 2023;50:e20233512. DOI: 10.1590/0100-6991e-20233512-en. PMID: 37971114. PMC: PMC10618030.
  5. ↑ 5.0 5.1 5.2 Roche AF, et al. (2024). "Silicone as a smart solution for simulating soft tissue — an iterative approach to developing a high-fidelity sustainable training model for laparoscopic appendectomy." Frontiers in Surgery 11:1483629. DOI: 10.3389/fsurg.2024.1483629. PMC: PMC11617534. CC BY 4.0.
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