Fig. 3

Schematic diagram illustrating the principle of the technique. a. Puncturing instrument with a towel assistance. The image shows the epidural needle with a Prolene loop inside of the barrel is puncturing preperitoneally, with a towel forceps stretching of the groin skin as an assistance. This maneuver inclines the operator to establish an eye-hand coordination. b. Circling thread capture by the thread loop. The image shows the circling thread has been trapped by the Prolene thread loop. c. Thread circling completion by the thread loop. The image shows the single Prolene thread has been trapped and pulled out of the body by the Prolene thread loop. This single Prolene thread has circled the internal ring completely. d. The internal ring closure. The image shows the single Prolene thread is being knot-tied to close the internal ring outside of the body at the groin site