Johns Hopkins Bulldog Clamp, commonly referred to as the Blalock Bulldog Clamp, is crafted for use in cardiothoracic surgeries. This clamp is designed to occlude blood flow through major vessels during surgical procedures. The sturdy design and build of this instrument make it effective at blocking blood flow but preventing any permanent damage to the vessels themselves. https://grey-medical.com/product/johns-hopkins-bulldog-clamp.html