[一份20微升血迹的形态特征]

[The morphological features of a 20 mcl blood stain].

作者信息

Pigolkin Ju I, Leonova E N, Leonov S V, Nagornov M N

机构信息

Kafedra sudebnoj meditsiny Pervogo Moskovskogo gosudarstvennogo meditsinskogo universiteta im. I.M. Sechenova, Moskva, Rossija 119992.

kafedra sudebnoj meditsiny Moskovskogo gosudarstvennogo mediko-stomatologicheskogo universiteta im. A.I. Evdokimova, Moskva, Rossija, 119435.

出版信息

Sud Med Ekspert. 2015 Mar-Apr;58(2):36-38. doi: 10.17116/sudmed201558236-38.

DOI:10.17116/sudmed201558236-38

PMID:26036072

Abstract

The objective of this work was to study blood stains of small volume (20 mcl). It was shown that the fall of a blood droplet from the height of 5 to 200 cm at the angle of 90 degrees on a smooth non-absorbing surface (glass) leaves round stains. Their size increases with increasing height of the fall. The character of the stain edges also depends on the height of the fall. The edges are even when the drops fall from the height of less than 20 cm but become wave-shaped with blunt projections when the height of the fall is increased to 30-90 cm. The fall from the height of 100 to 200 cm gives rise to the stains with the scalloped edges having the rectangular or nearly rectangular protrusions. From one to three additional Plateau drops can be observed near the main one.

摘要

这项工作的目的是研究小体积（20微升）的血迹。结果表明，一滴血从5至200厘米的高度以90度角落在光滑的非吸收性表面（玻璃）上会留下圆形血迹。其大小随着下落高度的增加而增大。血迹边缘的特征也取决于下落高度。当血滴从小于20厘米的高度落下时，边缘是平滑的，但当下落高度增加到30至90厘米时，边缘会变成带有钝突起的波浪形。从100至200厘米的高度落下会产生带有扇形边缘且有矩形或近似矩形突起的血迹。在主血迹附近可以观察到一到三个额外的 Plateau 液滴。