1. A brief history of the tourniquet
David R. Welling, MD, Patricia L. McKay, MD, Todd E. Rasmussen, MD, Norman M. Rich, MD 
Journal of Vascular Surgery 
Volume 55, Issue 1, Pages (January 2012)
DOI: /j.jvs
Copyright © 2012 Society for Vascular Surgery Terms and Conditions

2. Fig 1
This illustration shows an ancient Petit tourniquet, with the screw device that allowed for excellent tightening and compression.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2012 Society for Vascular Surgery Terms and Conditions

3. Fig 2
These photographs show a “Matas Compressor”, and were taken from Rich and Spencer, Vascular Trauma, W. B. Saunders Company, Philadelphia, 1978, p. 235.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2012 Society for Vascular Surgery Terms and Conditions

4. Fig 3
This is a recent photograph of a C-A-T, the Combat Action Tourniquet, applied to the arm of an active-duty Army soldier.
Journal of Vascular Surgery  , DOI: ( /j.jvs )
Copyright © 2012 Society for Vascular Surgery Terms and Conditions