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1.5" Ratcheting Medical Tourniquet (RMT)

1.5" Ratcheting Medical Tourniquet (RMT)

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Tactical extremity hemorrhage control

1.5" Ratcheting Medical Tourniquet (RMT)

A compact extremity tourniquet that uses a self-securing ratchet to provide controlled, incremental tightening without a windlass rod. Designed for trained military, law-enforcement, EMS, and prepared civilian users.

  • CoTCCC-recommended RMT-T
  • One-handed design
  • Self-securing ratchet
  • Instructions on webbing

Why carry the Tactical RMT?

  • Incremental tightening: The buckle advances one ratchet tooth at a time.
  • Self-securing mechanism: The buckle holds its setting without a windlass-retaining clip.
  • One-handed configuration: Designed for self-aid or application to another person with proper training.
  • Gross-motor operation: Ratcheting avoids fine windlass manipulation.
  • Compact carry: Approximately 4.4 × 1.5 × 2.5 inches folded and 3.6 ounces.
  • On-device guidance: Instructions are printed on the webbing.

The ratcheting design in practice

The RMT overview explains how the ratcheting platform is intended to simplify tightening and adjustment. 

Tooth-by-tooth adjustment

Each click advances the ladder strap incrementally, allowing tightening in small mechanical steps until bleeding is controlled and, when appropriate, the distal pulse is absent.

Self-locking buckle

The ratchet holds its position after each advance. Unlike a windlass design, there is no rod that must be secured in a retaining clip after tightening.

One-handed operation

The RMT is configured for one-handed application and adjustment. This can support self-aid and use where reach or mobility is limited, but effective use still requires model-specific practice.

Smooth strap routing

A strap-retention tri-glide is intended to help the webbing travel through the application path without binding. Initial slack must still be removed before relying on the ratchet for final tightening.

Mechanical leverage

The buckle converts repeated hand movements into progressive strap tension. It is intended to reduce the grip and twisting demands associated with rotating a windlass, although individual ability and conditions vary.

Practice and familiarity

The source article emphasizes practicing with the RMT mechanism. Inspect training and carried devices according to manufacturer guidance, and replace a device that is contaminated, worn or damaged.

What published research found

Layperson application

In a simulated-arm study involving 176 untrained adults, the RMT had the highest effective-application rate among four tested tourniquets, at 64.4%, and the shortest mean application time.

“The RMT was the most effectively and most rapidly applied.”

Arterial occlusion testing

A healthy-volunteer study of Tactical and Mass Casualty RMT configurations reported that 99% of RMT applications reached initial arterial occlusion; 1% lost occlusion during the one-minute observation. Participants rated RMT application “97% easy.”

Self-securing design

A 2023 study had 64 participants apply eight tourniquet designs, including the Tactical RMT. Across the evaluated devices, ratcheting systems had fewer tightening-system mechanical problems than windlass systems.

“Self-securing systems have process advantages.”

Final-tightening time

In a companion analysis, the Tactical RMT recorded a median 6.45 seconds from touching the tightening mechanism to a completed, occlusive, and secure application in qualifying applications that began with an adequately tightened strap.

Specifications

Webbing width 1.5 inches / 38 mm
Ratchet mechanism 0.75-inch m2 buckle and ladder strap
Approximate weight 0.23 lb / 103 g / 3.6 oz
Approximate folded size 4.4 × 1.5 × 2.5 inches
Available colors Tan or black, subject to inventory
Instructions Printed on webbing
NSN 6515-01-527-3841
Recommendation CoTCCC-recommended RMT-T configuration

CoTCCC recommendation

The Committee on Tactical Combat Casualty Care’s 2019 review included the Tactical RMT among its recommended nonpneumatic limb tourniquets. This applies specifically to the Tactical RMT, not every civilian or alternate RMT model.

Reassess after application

A controlled study involving nonelastic tourniquets, including the RMT, found that applied pressure can decline within minutes. This supports continued reassessment rather than assuming that initial occlusion will persist.

Train before you need it

Effective tourniquet use depends on recognizing life-threatening bleeding, tightening completely, and verifying that bleeding has stopped. Receive hands-on instruction and practice with the exact model you carry.

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