2 Metaphors for tourniquets

The ordinary tourniquet is probably the most inefficient instrument that the mind of man could deviseat least, for dealing with wounds of the thigh out in the field.

"A tourniquet is a bandage, handkerchief, or strap of webbing, into the middle of which a stone, a potato, a small block of wood, or any hard, smooth body is tied.

2 Metaphors for  tourniquets