Table 1 Mean run-off diameter after intervals of 2, 7, 10, 20 and 30 min, mean drop area, mean run-off area and mean run-off speed for 100 µl drops in vertically arranged stripes of polyvinyl chloride (PVC), polyethylene (PE), polyethylene terephthalate (PET) and aluminum-coated polyethylene terephthalate (Al-PET).
From: Thin foil body-shield resuscitation barrier device to protect from blood: an experimental study
PVC | PE | PET | Al-PET | |
|---|---|---|---|---|
m ± SD | m ± SD | m ± SD | m ± SD | |
Blood stain length | ||||
2 min run-off length (mm) | 296 ± 20.4 | 235 ± 27.2 | 253 ± 19.4 | 266 ± 8.6 |
7 min run-off length (mm) | 365 ± 32.2 | 318 ± 24.3 | 347 ± 16.3 | 315 ± 38.6 |
10 min run-off length (mm) | 378 ± 35.7 | 328 ± 21.8 | 378 ± 40.1 | 324 ± 65.0 |
20 min run-off length (mm) | 383 ± 36.3 | 335 ± 30.3 | 394 ± 48.0 | 330 ± 72.9 |
30 min run-off length (mm) | 385 ± 37.0 | 335 ± 30.3 | 396 ± 48.5 | 344 ± 71.0 |
Blood stain width | ||||
30 min initial drop width (mm) | 8.2 ± 1.2 | 7.5 ± 0.8 | 9.2 ± 0.8 | 9.2 ± 0.6 |
30 min run-off mid-width (mm) | 4.1 ± 0.6 | 3.8 ± 0.7 | 4.3 ± 0.4 | 4.3 ± 0.4 |
30 min end drop width (mm) | 3.7 ± 0.5 | 3.6 ± 0.5 | 4.2 ± 0.4 | 4.7 ± 0.8 |
Run-off speed and blood stain area | ||||
2 min run-off speed (mm/s) | 2.5 ± 0.2 | 2.0 ± 0.2 | 2.1 ± 0.2 | 2.2 ± 0.1 |
30 min run-off area (mm2) | 1,586 ± 347 | 1,321 ± 144 | 1,703 ± 339 | 1,481 ± 355 |
Initial drop area (mm2) | 53.3 ± 15.5 | 44.6 ± 10.4 | 66.4 ± 10.8 | 66.4 ± 10.8 |
End drop area (mm2) | 10.7 ± 2.8 | 11.2 ± 2.6 | 14.0 ± 3.2 | 14.4 ± 9.4 |
Contamination | ||||
Initial drop area/run-off area (%) | 2.6 ± 1.1 | 2.9 ± 0.3 | 4.1 ± 1.3 | 4.8 ± 1.7 |
Presumed infectivity | ||||
End drop area/initial drop area (%) | 22.6 ± 10.3 | 29.1 ± 7.2 | 22.3 ± 5.8 | 22.7 ± 16.1 |
End drop area/run-off area (%) | 0.7 ± 0.1 | 0.8 ± 0.1 | 0.8 ± 0.2 | 1.1 ± 0.7 |
