壁面厚度对一体化小腿假肢应力分布的影响.PDFVIP

J Biomed Eng 　2004; 21( 4) ∶562～ 565　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 * 1 1,Δ 2 1 1 1 刘　展　樊瑜波 　张　明　蒋文涛　蒲　放　陈君楷 1(四川大学 生物力学研究所,成都　610065) 2(香港理工大学 复康科技中心,香港) 　　　,、 、,。,。 。 ,,; ,,, Heel Off ,, 。 ,。 　　　 Influence of Wall Thickness on the Stress Distribution within Transtibial Monolimb 1 1,Δ 2 1 1 1 Liu Zhan　Fan Yubo 　Zhang Ming　Jiang Wentao　 u Fang　Chen Junkai 1(B iomechan ics I nstit ute , Sichuan Univ ersi ty , Chengd u　610065, China ) 2(J ock ey Club Rehabi lit ation Eng ineer ing Center , The H on g K ong P olyt echnic Univ ersi ty , Hong Kong , China ) 　　Abstract　Monolimb is a new type of low er-limb prostheses made of ma romole ule polymer , in w hi h the so ket and prostheti shank are integrative. Compared with traditional prosthesis, monolimb is more e onomi al, - , . - good looking and portable so it indi ates a possible dire tion in the future Biome hani al resear h on trans tibial monolimb is ne essary and helpful just like traditional prosthesis. In this arti le, a 3D FE model based on real geometry shape of an endoskeletal trans-tibial monolimb is established. Keeping the same geometri al shape , th ree 3D FE models of t ranstibial monolim bs with different w all thi kness are established. The influen e of w all thi kness on the stress distribution is analyzed under the load orresponding to the subphase of stan e of Heel Off. The results indi ate that stress within transtibial monolimb and pressure on the surfa e of soft tissue ould be de reased with wall thi kness of transtibial monolimb in reased.