Vol.22 No.2 顺正秋等：聚乙烯醇水凝胶人工软骨的连接试验 ·165 (a) (b) 图4不锈钢纤维网，复合人工软骨组件与不锈钢基片粘接样的面分布 ()不锈钢纤维的网状分布b)聚乙烯醇水凝胶与骨水泥在不锈钢纤维网中的弥散分布 Fig.4 Surface distributions of the stainless steel fibre mesh and specimen of CACD bonded to the stainless steel substrate 表1不锈钢纤维网与PVA水凝胶之间机械连接剪切强度 醇水凝胶与不锈钢纤维网的连接，制得复合人 Table I The shear strength of the mechanical attachment 工软骨组件.以骨水泥(PMMA)为粘合剂，可实 between the stainless steel fibre mesh and PVA-hydrogel 现复合人工软骨组件与不锈钢基片（或底层骨） 不锈钢纤维网的孔径/mm9-1035403540 之间牢固的机械-化学连接。 不锈钢纤维网的孔隙度% 70 8080 (3)不锈钢纤维网的孔径愈大，孔隙率愈高， PVC水凝胶的含水率/% 79.680.279.6 则聚乙烯醇水凝胶与不锈钢纤维网连接的剪切 两者连接的剪切强度MPa 0.203 0.5 强度愈高， 4结论 参考文献 (1)聚乙烯醇水凝胶经真空全脱水处理后 I Gu Zhengqiu,Xiao Jiumei.Zhang Xianghong.The Devel- opment of Artificial Articular Cartilage-PVA-Hydrogel. 的微观形貌，为典型的R.Hosemann隧道-折叠 Bio-Medical Materials and Engineering.1998:8:75 链模型，置于水或小牛血清中时，可溶胀至饱和. 2何曼君，陈拳维，董西侠编高分子物理.上海：复旦大 (2)采用微观机械嵌锁方法可实现聚乙烯 学出版社，1990.63 Mechanical-chemical Attachment of the Artificial Cartilage(PVA-hydrogel) to the Metal Substrate(or Underlying Pone) GU Zhengqiu". XIAO Jiumer.LOU Siquan 1)Materials Science and Engineering.USTB.Beijing.100083.China2)Third Clinical Hospital of Beijing Medical University.Beijing 100083) ABSTRACT PVA-hydrogel is attached to the metal fibre mesh by means of micro-mechanical interlock method at first,then the surface of metal fibre mesh is bonded to the underlying bone by the bone cement (PMMA).In this way,the artificial cartilage can be firmly attached to the underlying bone (or metal substrate).Microstructure analysis and mechanical tests show that the attachment between artificial cartilage and the metal substrate is firm. KEY WORDS PVA-hydrogel;composite artificial cartilage device;mechanical-chemical attachment