- SIU School of Medicine

“The Ham-Cam”
Lower Endoscopy Navigation Model
Created by Stephanie Donnelly MD, Imran Hassan MD
& Jenny Bartlett ST
Supplies Needed
● Peg board (24”x 29”)
● Zip ties (11” length)
● Hamster tubing
(pet supply store)
● Wood blocks (2.5”x6”)
● Long screws
● Power drill w/ hole saw attachment
● Kidney basin
● Esmark
● Glad Press & Seal (optional)
Place a round cap with air
vents midway up the first
section. This will sit down
in the peg board to allow the
resident to suction fluid
from a basin
Assemble hamster tubing into a
configuration of the colon like shown
in these two pictures or in a design of
your choice. Remember that too
many bends in the tubing make
navigation more difficult..
The hamster tubing can be lines with Glad press
and seal wrap or a similar product to create a
smaller lumen and to help the scope move through
the model a little more smoothly. The scope should
be prayed generously with Pam cooking spray or
other lubricant to help with navigation. You can
also add pieces of Esmark in various areas inside
the model with a slit cut in either the top or bottom.
This gives the resident a chance to practice
operating the scope over and under obstacles.
Place assembled model on the peg board and mark the area to
be cut for the vented cap. We used a standard door knob size hole
saw. Place vent cap through the hole and secure the hamster
tubing to the board with zip ties. Attach wood blocks on all four
corners and in the middle of the peg board with screws.
Cut a small hole in the Esmark at the beginning
of the model. We placed a basin of colored
water under the peg board where the vent cap is
located for suctioning of fluid. We also used a
non skid piece of rubber shelf liner under the
wood blocks so the model will not slide when
using. Spray the endoscope with a water soluble
lubricant (Pam) before beginning task.
The SIU model in use
Endoscopic views of the
model before Press &
Seal liner was added.