DESC: For the surgical treatment of porto caval or hepatic shunts.

This specially designed product is used to encircle a blood vessel. A special material (hygroscopic compressed casein) inside the donut shaped constrictor imbibes fluid over time. It slowly occludes the blood vessel.
A small key is used to lock it in place after it is slipped over the blood vessel.
Sizing: about a 25% reduction in the blood vessel diameter should be achieved upon initial surgical placement for the best results. Sterile.

Diameter of inner circle: 5.0mm

PKG: Each