Disruptive forces for swine heart, liver, and spleen: their breaking stresses.

Disruptive forces for swine heart, liver, and spleen: their breaking stresses.
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对猪心脏、肝脏和脾脏的破坏力:它们的断裂应力。

DOI:
10.1097/00005373-199812000-00019
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发表时间:
1998
期刊:
The Journal of trauma
影响因子:
--
通讯作者:
H. Iwamoto
H. Iwamoto
中科院分区:
--
文献类型:
--
作者:
Shuji Seki;H. Iwamoto

文献摘要

被引文献

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目标 猪心、肝和脾的机械强度是通过测量引发器官破裂的力来确定的。 方法 力是通过将检测杆压缩到器官上来加载的,而断裂应力是通过将力除以杆的接触面积来计算的。在每种类型的器官中,有和没有浆膜(SM)的五个器官进行了五次测量。 结果 心脏破裂应力为14.1+/-0.7 kg/cm~2(平均+/-0.7 kg/cm~2),心外膜破裂应力为8.1±/-0.6 kg/cm~2,脾破裂应力为9.0±-0.9 kg/cm~2,脾破裂应力为9.0±-0.9 kg/cm~2,肝破裂应力为4.6+/-0.3 kg/cm~2,肝破裂应力为3.6±-0.3。三因素方差分析表明,器官、其SM和个体猪是断裂应力的独立决定因素。 结论 丹参完整时,心脏最强,肝脏最弱。当SM不存在时,脾失去了80%的力量,肝脏失去了22%的力量,心脏失去了43%的力量。
OBJECTIVES The mechanical strengths of the swine heart, liver, and spleen were determined by measuring the force that initiated the rupture of the organs. METHODS The force was loaded by the compression of a detection bar onto the organ, and the breaking stress was calculated by dividing the force by the bar's contact area. The forces were measured with five measurements in five of each type of organ with and without the serous membrane (SM). RESULTS The breaking stresses of the heart were 14.1+/-0.7 kg/cm2 (mean+/-SEM) with intact epicardium and 8.1+/-0.6 without it; those of the spleen were 9.0+/-0.9 with its capsule and 1.8+/-0.1 without the capsule, and those of the liver were 4.6+/-0.3 with and 3.6+/-0.3 without the SM. A three-way layout analysis of variance showed that the organs, their SM and individual swine were independent determinants of the breaking stresses. CONCLUSION With the intact SM, the heart was strongest and the liver was weakest. When the SM was not present, the spleen lost 80% of its strength, the liver 22% of its strength, and the heart lost 43% of its strength.