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郭图聖,居来提·买提肉孜,陶杰,等. 沙疗温度及血液灌注对膝关节温度场和应力场的影响[J]. 科学技术与工程, 2021, 21(8): 3039-3045.
guotusheng,taojie,et al.Effects of sand therapy temperature and blood perfusion on temperature and stress field of knee joint[J].Science Technology and Engineering,2021,21(8):3039-3045.
沙疗温度及血液灌注对膝关节温度场和应力场的影响
Effects of sand therapy temperature and blood perfusion on temperature and stress field of knee joint
投稿时间:2020-07-05  修订日期:2020-12-19
DOI:
中文关键词:  沙疗  血液灌注率  膝关节  温度场  热应力  数值模拟
英文关键词:sand therapy  blood perfusion rate  the knee joint  temperature field  the thermal stress  the numerical simulation
基金项目:浙江清华柔性电子技术研究院开放基金项目(No. 2019KF1501)
              
作者单位
郭图聖 新疆大学
居来提·买提肉孜 新疆大学
陶杰 新疆大学
罗辉卿 新疆大学
任航宁 新疆大学
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中文摘要:
      为探究沙疗过程中沙体温度及血液灌注率对于人体膝关节部位温度场分布以及骨骼热应力的影响,在生物传热学以及经典力学的理论基础上,通过运用将膝关节部位的CT影像数据导入3D逆向建模软件Mimics建立三维模型,并将模型导入Comsol软件并进行传热数值模拟的方法来研究了沙疗过程中膝关节温度场以及热应力的变化规律。结果表明,在45摄氏度沙体环境下沙疗30分钟,膝关节骨骼的温度和应力主要集中在髌骨和胫骨上,而在胫骨的长骨部位尤为集中。由骨骼热应力变化曲线可以知道骨骼平均热应力在沙疗20分钟时达到顶峰,在20到30分钟内出现下降趋势,然后在30分钟以后随着时间增加开始逐渐减退。可见合适的沙疗时间在20分钟左右为最佳,但最多不超过30分钟为宜。在整个沙疗过程中,血液灌注率对于人体的温度场以及应力场起着至关重要的调节作用。
英文摘要:
      In order to explore the influence of sand temperature and blood perfusion rate on the temperature field distribution and bone thermal stress of human knee joint during sand therapy, Based on the theory of biological heat transfer and classical mechanics, The variation of temperature field and thermal stress of knee joint during sand treatment was studied by importing CT image data of knee joint into 3D reverse modeling software Mimics to establish a 3D model, and importing the model into Comsol software to conduct numerical simulation of heat transfer. The results showed that the temperature and stress of the knee bones were mainly concentrated on the patella and the tibia, especially on the long bone of the tibia. According to the curve of bone thermal stress change, the average bone thermal stress reached its peak at 20min of sand treatment, showed a downward trend within 20 to 30 minutes, and gradually decreased after 30 minutes with the increase of time. The best time for sand therapy is about 20 minutes, but not more than 30 minutes at most. The blood perfusion rate plays an important role in regulating the temperature field and stress field of human body during sand treatment.
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