Jejunostomy technique 1. A) A purse string suture of the jejunostomy tube using a 4-0 absorbable suture. B) Insert the Stoma Measuring Device through the abdominal wall into the abdominal cavity. C) Measure the abdominal wall thickness. D) Use the finger grips on the GripStar Device for retention during obturation and insertion. E) Insert the obturated G-Tube into the stoma tract until the internal retention portion can be seen perfectly in the abdominal cavity.