针刺过程中的针体受力分布  

Stress distribution of needle body during the process of acupuncture

作　　者：王西明[1] 张辉[1] 周永军[1] 

机构地区：[1]咸阳师范学院物理系,陕西省咸阳市712000

出　　处：《中国组织工程研究》2013年第11期2040-2047,共8页Chinese Journal of Tissue Engineering Research

基　　金：陕西省自然科学基金资助项目(2010JM4030)主持人;王西明;陕西省教育厅自然科学基金资助项目(09JK806);主持人;王西明~~

摘　　要：背景:针刺过程针体受力分布,不仅取决于不同穴位处组织结构,更受行针手法的影响。目的:就一般穴位所共有的表皮、真皮和皮下结缔组织的组织结构和力学性质,分提插和捻转法进行针体受力研究。方法:以提插法和捻转法为前提,以表皮组织、真皮组织和皮下结缔组织为区域对象,在前期研究的基础上建立类固体和软物质两种生物力学模型,对行针过程中的针体阻力分布进行分析,以得出定性化的结论。结果与结论:表皮无血管无神经,致密而坚硬,可以看作类固体;真皮及皮下结缔组织中血管神经等分布广泛,疏松而柔软,是典型的软物质。提插行针过程中非"得气"时阻力主要来自表皮部分,在"得气"状况下阻力应该来自表皮和结缔组织中的纤维细胞共同作用,对针体而言,进入皮肤的所有针体部分都是受力点,只是靠近针尖部分的针体受力稍大一些,但是随着提插操作,进入皮肤的针体长度不断在发生变化。捻转法行针的主要阻力来自胶原纤维和弹性纤维的缠绕,对针体而言受力点主要集中在针尖及附近部位。BACKGROUND： During the process of acupuncture, the stress distribution of needle body not only depends on the tissue structure of different acupoints, but also is affected by method of manipulating needle.OBJECTIVE： According to the tissue structure and mechanical properties of epidermis, dermis and subcutaneous connective tissue of normal acupoints, to analyze the stress distribution of the needle body during the acupuncture using lifting-thrusting method and twirling method. METHODS： Based on the previous research results, solid-like and soft matter models were established to analyze the resistance distribution of the needle body during the acupuncture using lifting-thrusting method and twirling method. RESULTS AND CONCLUSION： The epidermis has no vessel and nerve, but it is dense and hard that can be seen as a solid-like. The dermis and subcutaneous connective tissue possess vessels and nerves that are widely distributed, and they are loose and soft, which are typical soft matters. Under the condition without ＂Deqi＂, the resistance during the lifting and thrusting of manipulating needle mainly comes from the epidermis; after so-called ＂Deqi＂, the main resistance comes from the combined action of dermis and connective tissue. There are stress points all over the needle body after it goes into the skin. The stress near the needle tip is higher. Manipulating needle using twirling method can be resistant by collagen fiber and elastic fiber winding. The stress points of the needle body are mainly concentrated at the pinpoint and its neighboring.

关 键 词：组织构建 组织构建与生物力学 针刺 穴位 提插法 捻转法 真皮 结缔组织 类固体 软物质 力学性能 阻力分布 省级基金 组织构建图片文章 

分 类 号：R318[医药卫生—生物医学工程]