Page 40 - JSOM Winter 2019

TABLE 35 TMT Time of Application TABLE 38 TMT Specifications
Total Total
Score Score Time (Speed) of Application n = Citation Score Score Specifications Scoring
Median time to reach complete Width – ≥1.5 inches (critical 2.0 1 – Yes /
5 arterial occlusion was 35 (IQR, 24 39 1 requirement). inches –1 – No
29–42) seconds. Length – ≥37.50 inches or
38.68 1 – Yes /
67.6 seconds (± 30.5) on 50 arm 1 provide 35 inches circumferential inches –1 – No
applications; initial strap tension (critical requirement).
2 50 42
35.9 seconds (± 15.0); tighten and 5 1 – Yes /
secure 31.7 seconds (± 23.6). 1 Locking Mechanism/Method. Yes 0 – No
48.0 seconds (± 13.2) on 49 leg 1 – Yes /
applications; initial strap tension 23.2 1 Time Recording. Yes 0 – No
seconds (± 7.1); tighten and secure
5 49 42 Weight – <8 ounces (critical for 1 – Yes /
24.8 seconds (± 9.2). The hooked 1 2.9 oz
clasp enables it to be routed quickly JFAK inclusion). –1 – No
4.10 with no rethread requirements.
5 Application time – 16 seconds (12–20). 24 47 TABLE 39 TMT Complications and Safety
3 Application time – 66 seconds. 10 19 Total
5 Application time – mean 40 seconds 20 21 Score Score Complications and Safety n = Citation
Dry/Light applications – 55.8 ± 17.9 5 No Reported Failures/Problems. n/a n/a
4 10 48 5
seconds 5 No Reported/Known Safety Issues. n/a n/a
Wet/Dark applications – 89.1 ±
4 10 48
35.05 seconds. TABLE 40 TMT Usage
Leg application time – 53.6 (± 10.9)
4 5 7 Total
seconds.
Score Score Usage Citation
Arm application time – 30.0 (± 4.8)
4 5 14 No combat usages documented in
seconds. 2 n/a
medical literature.
No civilian usages documented in
TABLE 36 TMT Simplicity of Application 2 medical literature. n/a
Total Part 2 Ranked 9.3% as preferred tourniquet for
Score Score Score Ease of Use n = Citation 1 arm application (n = 55). 42
50% Rated TMT Easier to Ranked 28.3% as preferred tourniquet
3 24 39 3 42
2.50 use. for leg application (n = 55).
2 24% Rated as Easy. 110 42
Part TABLE 41 TMT Logistics
Score Score Steps to Complete n = Citation Total
5 One-Handed – 5 steps. n/a 49 Score Score Logistics
7.17 One-Handed – 7 steps
4 n/a 49 5 NSN in DoD System. 6515-01-656-6191
including sub-steps. 4.33 4 GSA Cost per Unit. $19.85
5 Two-Handed – 6 steps. n/a 49
4.66 4 Commercial Cost per Unit. $29.95
4 Two-Handed – 7 steps n/a 49
including sub-steps.
5 3.8 turns to occlusion (3–4). 24 47 M2 Design – Ratcheting Tourniquets including
5 2 turns to occlusion. 20 21 Ratcheting Medical Tourniquet-Tactical (RMT-T) and
TX2 and TX3 Tourniquets – SCORE: 41.83.
TABLE 37 TMT Pressures Ratcheting mechanism with single loop self-locking buckle. In-
Total cludes M2 ratchet-based tourniquets RMT-Tactical, TX-2 and
Score Score Pressures n = Citation TX-3 which are MILSPEC compliant. This review does not in-
193.83mmHg mean combined
5 250 Combined clude or recommend other non-military versions of the RMT.
pressures of all studies
Interface pressure immediately
5 after occlusion to arm – 110 42 FIGURE 6 Ratcheting Medical Tourniquet – Tactical.
180mmHg (± 54).
Interface pressure immediately
5 after occlusion to leg – 211mmHg 110 42
(± 50).
Leg contact pressure mean
4.43 4 10 48
198mmHg.
Arm contact pressure mean
4 10 48
220mmHg.
Contact pressure on HapMed
4 Leg Tourniquet Trainer mean of 5 7
205mmHg.
Contact pressure on HapMed
4 Arm Tourniquet Trainer mean of 5 7 https://www.ratchetingbuckles.com/ratchet-buckles-ladder-straps/
160mmHg. ratcheting-medical-tourniquet-tactical/

38 | JSOM Volume 19, Edition 4 / Winter 2019