This device is known as Esmarch's bandage for surgical haemostasis or Eschmarch's Tourniquet.

The right arm was ensheathed in a self-applied compression bandage consisting of two rubber Esmarch's bandages, and the victim was transported to the hospital by ambulance.

Esmarch bandage (also known as Esmarch's bandage for surgical haemostasis or Esmarch's tourniquet) in its modern form is a narrow hard rubber tourniquet with a chain fastener that is used to control bleeding by applying it around a limb in such a way that blood is expelled from it.