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Effects of Tourniquet Features on Application Processes Times.

Piper Lynn Wall, Charisse M Buising, Alex White

Journal of Special Operations Medicine : a Peer Reviewed Journal for SOF Medical Professionals

|December 19, 2023

Summary

Optimal emergency tourniquet design features, including self-securing straps and clips, significantly reduce application times for faster, more effective limb occlusion. This research highlights key design elements for improved tourniquet performance in critical situations.

Keywords:

emergency treatment first aid hemorrhage tourniquet

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Area of Science:

Medical Devices
Emergency Medicine
Biomedical Engineering

Background:

Investigated the impact of emergency-use limb tourniquet design features on application processes and completion times.
This study focused on the time-dependent aspects of tourniquet application.

Purpose of the Study:

To evaluate how specific design features of emergency limb tourniquets influence application speed and efficiency.
To identify optimal design characteristics for rapid and secure tourniquet application.

Main Methods:

Sixty-four participants applied eight different tourniquet models after watching training videos.
Application process times were meticulously recorded by analyzing video footage.
Eight tourniquets were tested: Combat Application Tourniquet Generation 7 (CAT7), SOF™ Tactical Tourniquet-Wide Generation 3 (SOFTTW3), SOF™ Tactical Tourniquet-Wide Generation 5 (SOFTTW5), Tactical Mechanical Tourniquet (TMT), OMNA Marine Tourniquet (OMT), X8T-Tourniquet (X8T), Tactical Ratcheting Medical Tourniquet (Tac RMT), and RapidStop Tourniquet (RST).

Main Results:

Application from 'Go' to 'touch tightening system' was fastest with clip and self-securing redirect buckle systems, with minimal issues.
Time from 'touch tightening system' to 'last occlusion' was quickest using windlass rod systems under ideal conditions.
For occluded and secure applications, time from 'touch tightening system' to 'Done' was fastest with self-securing tightening systems that tighten from a tight strap.

Conclusions:

Suboptimal design features and application processes increase the time required to apply a tourniquet.
Optimal tourniquet designs incorporate self-securing strap/redirect systems with easily identifiable and usable clips.
Self-securing tightening systems are crucial for achieving fast, occlusive, and secure tourniquet applications.