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24Tourniquet Design
The US Army Institute of Surgical Research (USAISR) conducted several evaluations of commercial tourniquet devices. The final evaluation identified three devices that were 100% effective. From this evaluation, the US Army selected the C-A-T
®as the primary pre-hospital tourniquet. Numerous studies and combat after action reports from the current war theaters validate that organizational decision.
®anaToMy
oF a
TourniqueT:
Effective Hemorrhage Control by Design...
although
there are currently a multitude of tourniquets available on the commercial market, some of these tourniquets may or may not be effective. The challenge is to sort through all of the The committee also listed an additionalFive Desirable Features
* in Tourniquet design:: commercially available devices to identify the one best suited for your organization?s requirements. The evaluation and selection should rely on established criteria that are measurable and reproducible. 1Wider is Better
Not less than 1 inch wide2Self
Application
One-handed self-application to an upper extremity3Open-ended
Design
Capability of being applied to entrapped limbs4Torque
Control
Protection from over-tightening5Low
Cost
Large-scale production cost of $25 .00 When the U.S. Army studied tourniquet devices suitable for use by individual soldiers within the tactical operating environment, a consensus panel established criteria for device design. It was clear from the outset that a pneumatic tourniquet was not appropriate for this specific operational environment application. The committee establishedSeven Absolute Requirements for a Tourniquet:
Another critical design characteristic isDevice Security.
Once the tourniquet device is applied and hemostasis is achieved, it should not be able to be accidentally released during casualty movement. While some currently available devices achieve hemostasis, their inherent design allows easy inadvertent release, which can be catastrophic to patient outcome.1.888.689.6277 Fax: 1.864.675.9880 www.NARescue.com
1Ample Capability
Occlusion of arterial flow in a thigh 26.7 inches in diameter2 3
Rapid Application
Easy application to either an upper or lower extremity in less than one minute with minimal familiarizationAnti-Slip Design
Cannot slip towards wound during tightening or slip after tighteningEasily Adjustable
4Capable
of easy release and subsequent re-applicationSmall Cube
5 6
Weigh less than 230 gramsNo Power Requirement
Must have no dependence on external power sources such as batteries and electricity7Extended
Storage
Must have a shelf life greater than 10 yearsPreventable Combat Death
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