Date of Award


Degree Name

MS in Biomedical Engineering


Biomedical and General Engineering


Lanny Griffin


This study investigated reducing volumetric flowrate under steady flow conditions by varying lengths of compression with constant cross-sectional area and varying cross-sectional area reduction with constant length in order to better understand how to control junctional hemorrhaging. The hypotheses of this study were that length reduction will have little effect on volumetric flowrate and that cross-sectional area reduction would need to be approximately 80 percent in order to obtain bleeding control. The study found that length reduction has little effect on changing the flowrate. However, in order to obtain at least 80 percent reduction in flow, the area needs to be occluded by at least 95 percent. These results may help inform better tourniquet designs by using collapsible tube science.