TissueDB/Tissues/Internal Inguinal Ring

▼This page is a tissue entry for the SELF Tissue Database.It documents the structures, recommended materials, and related simulators associated with this tissue to support low-cost, reproducible surgical simulator development.

The internal (deep) inguinal ring is the abdominal opening of the inguinal canal — a defect in the transversalis fascia located approximately one centimetre above the inguinal ligament, midway between the anterior superior iliac spine and the pubic tubercle. The ring transmits the spermatic cord (or round ligament) and is the site at which an indirect inguinal hernia first develops, when the persistent vaginal process or peritoneal extension protrudes through. In laparoscopic inguinal hernia repair (LIHR), correct closure of the peritoneum at the internal ring is a defining technical step. Simulators for pediatric LIHR commonly use the neck of a one-litre plastic bottle as a geometric proxy for the ring — the bottle-neck calibre approximates the diameter of an infant's deep ring and provides a fixed boundary for simulated intracorporeal knotting.