Physics experiment of diverticulum (2)

 

Office Uno Column: Yoshiharu Uno, MD, PhD

 

 

 

1

 

Soft rubber tube with a diameter of 2 cm of the lumen

Hole of 1cm

 

 


 

 

https://www.youtube.com/watch?v=aHMZwsWXwVQ

 

 

 

２図1


 

If there is not any constriction in the tube, diverticulum is not formed.

 

If there is a constriction in the tube, diverticulum is formed.

 

If the fluid is flowing, diverticulum is easy shrinkage.

 

If the hole (wall) is soft, the diverticulum is easy bulge.


 ３図1