| 扩张皮肤移植后的粘弹性特性 |
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| 引用本文： | 曾衍钧,黄昆,许传青,章晶,孙广慈.扩张皮肤移植后的粘弹性特性[J].固体力学学报,2002,23(1):1-7. |
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| 作者姓名： | 曾衍钧 黄昆 许传青 章晶 孙广慈 |
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| 作者单位： | 1. 北京工业大学生物力学研究室,北京,100022
2. 中国医学科学院整形外科医院,北京,100041 |
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| 基金项目： | 国家自然科学基金资助项目 (10 0 72 0 0 6 ) |
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| 摘 要： | 对狗背部扩张后和相应对照侧的皮肤软组织在移植后的不同阶段分别进行应力－应力和应力松弛粘弹性力学特性及极限抗拉强度实验，在移植后的短时期内，扩张组的力学性能相对于其对照组发生较大的偏离；但随着移植后恢复时间的增加，扩张组的力学性能又逐渐接近其对照组，扩张试件在移植后24周的生物力学性能基本恢复，从而阐明了扩张移植后皮肤粘弹性性质随时间的变化规律。
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| 关 键 词： | 皮肤扩张 粘弹性 应力松弛 扩张移植 极限抗拉强度实验 |
| 修稿时间： | 2001年4月17日 |
VISCOELASTIC CHARACTERISTICS OF EXPANDED SKIN AFTER GRAFTING |
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| Zeng Yanjun,Huang Kun,Xu Chuanqing,Zhang Jing.VISCOELASTIC CHARACTERISTICS OF EXPANDED SKIN AFTER GRAFTING[J].Acta Mechnica Solida Sinica,2002,23(1):1-7. |
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| Authors: | Zeng Yanjun Huang Kun Xu Chuanqing Zhang Jing |
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| Abstract: | The expanded skin specimens of dogs and their controls at different stages after grafting were studied. The stress-strain, stress relaxation's viscoelastic characteristics and tensile strength were measured. The results show that, during the initial stage after grafting, the biomechanical properties of expanded specimens deviate from those of their controls significantly. But the biomechanical properties of expanded specimens and their controls begin to close gradually in a longer recovering time. And when the recovering time reaches 24 weeks or longer, the experimental specimens exhibit the same mechanical characteristics as their controls. It is shown that viscoelasticity of expansive skin varies with time after grafting. |
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| Keywords: | skin expansion viscoelasticity stress-strain relationship stress relaxation |
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