医用生物力学
醫用生物力學
의용생물역학
JOURNAL OF MEDICAL BIOMECHANICS
2009年
6期
448-451,457
,共5页
李锋%周海宇%苏永琳%王成焘
李鋒%週海宇%囌永琳%王成燾
리봉%주해우%소영림%왕성도
力学性能%关节软骨%水凝胶
力學性能%關節軟骨%水凝膠
역학성능%관절연골%수응효
Mechanical properties%Articular cartilage%Hydrogel
目的 比较人膝关节软骨和聚乙烯醇水凝胶(PVA-H)人工软骨的生物力学性能.方法 使用人膝关节软骨和PVA-H人工软骨进行轴向压缩试验,分别进行压缩应力应变、应力松弛和蠕变实验,得到关节软骨和PVA-H人工软骨的应力应变关系.结果 实验中人关节软骨和PVA-H的力学性能有差异,人关节软骨压缩模量大于PVA-H人工软骨,人关节软骨的压缩模量为(3.6492±0.6199)Mpa,PVA-H的压缩模量为(1.5951±0.1469)Mpa.结论 软骨和PVA-H人工软骨的生物力学性能具有一定差异,试验结果对人工软骨的进一步改进具有指导意义.
目的 比較人膝關節軟骨和聚乙烯醇水凝膠(PVA-H)人工軟骨的生物力學性能.方法 使用人膝關節軟骨和PVA-H人工軟骨進行軸嚮壓縮試驗,分彆進行壓縮應力應變、應力鬆弛和蠕變實驗,得到關節軟骨和PVA-H人工軟骨的應力應變關繫.結果 實驗中人關節軟骨和PVA-H的力學性能有差異,人關節軟骨壓縮模量大于PVA-H人工軟骨,人關節軟骨的壓縮模量為(3.6492±0.6199)Mpa,PVA-H的壓縮模量為(1.5951±0.1469)Mpa.結論 軟骨和PVA-H人工軟骨的生物力學性能具有一定差異,試驗結果對人工軟骨的進一步改進具有指導意義.
목적 비교인슬관절연골화취을희순수응효(PVA-H)인공연골적생물역학성능.방법 사용인슬관절연골화PVA-H인공연골진행축향압축시험,분별진행압축응력응변、응력송이화연변실험,득도관절연골화PVA-H인공연골적응력응변관계.결과 실험중인관절연골화PVA-H적역학성능유차이,인관절연골압축모량대우PVA-H인공연골,인관절연골적압축모량위(3.6492±0.6199)Mpa,PVA-H적압축모량위(1.5951±0.1469)Mpa.결론 연골화PVA-H인공연골적생물역학성능구유일정차이,시험결과대인공연골적진일보개진구유지도의의.
Objective To compare the compression properties of articular cartilage and polyinyl alcohol hydro-gel(PVA-H)as artificial carlage.Method Unconfined compression tests were conducted on articular card-lage and PVA-H,including stress-strain tests,creep tests and stress relaxation tests.The stress-strain rela-tionship of articular cartilage and PVA-H were measured.Result The compression modulus of articular card-lage was higher than that of PVA hydrogel.The average compression modulus of articular cartilage and PVA hydrogel was(3.6492±0.6199)Mpa and(1.5951±0.1469)Mpa,respectively.Condusions The experimental results revealed the differences existed between articular cartilage and PVA-H and this would be useful to fur-ther improve the mechanical properties of artificial cartilage.
