What is "ecraseur"

n. (context surgery English) A surgical instrument intended to replace the knife in many operations, the parts operated on being severed by the crushing effect produced by the gradual tightening of a chain to avoid haemorrhage.

An écraseur is a surgical instrument containing a chain or wire loop that is used to encircle and sever a projecting mass of tissue (as the testicles of a horse or a pedicled tumor) by gradual tightening of the chain or loop.