我国每年有98%的骨缺损患者由于缺乏理想的人工植入物而成为功能受限者，个体化植入物设计制造已经成为我国从经验医疗转型精准医疗的关键部分。聚醚醚酮（Poly-ether-ether-ketone，PEEK）材料被普遍认为是目前最为理想的个体化植入物原材料之一，然而个体化PEEK植入物的复杂结构（尤其是大尺寸植入物）需要综合考虑PEEK材料性能、制造方法的工艺特性、临床植入应用环境等多方面的交叉影响。介绍了面向大尺寸个体化PEEK植入物的精准设计方法与控性定制3D打印方法，确立了个体化植入物设计方法与制造技术的几点准则，并描述了研究技术在一例大范围胸骨肿瘤治疗上的应用过程，所设计与制造的PEEK材料一体式胸肋骨假体，最终植入患者体内，协助大尺寸缺损胸壁的重建。
李涤尘
,
杨春成
,
康建峰
,
王玲
,
黄立军
,
王磊
,
曹毅
,
石长全
,
连芩
. 大尺寸个体化PEEK植入物精准设计与控性定制研究[J]. 机械工程学报, 2018
, 54(23)
: 121
-125
.
DOI: 10.3901/JME.2018.23.121
Every year, 98% of patients in China become functionally restricted due to the lack of ideal individualized artificial implants. The design and manufacture methods of individualized implants has become a key factor of China's transformation from experience medicine to precision medicine. Poly-ether-ether-ketone (PEEK) material is generally considered to be one of the most ideal materials for individual implants at present. However, PEEK's special properties, manufacturing process characteristics, and clinical application environment should be considered to build the complex structure of individual PEEK implants (especially large scale implants). Therefore, a precision design method and a control-performance 3d printing method are put forward for the individualized PEEK implants, which established some guiding principles of design and manufacturing process. A case about extensive chest wall repaired by a large-size individualized PEEK implant is described to show the specific process of the precision design and control-performance manufacturing method.
[1] KANG J,WANG L,YANG C,et al. Custom design and biomechanical analysis of 3D-printed PEEK rib prostheses[J]. Biomechanics & Modeling in Mechanobiology,2018:1-10.
[2] KURTZ S M,DEVINE J N. PEEK biomaterials in trauma,orthopedic,and spinal implants[J]. Biomaterials,2007,28(32):4845.
[3] 李涤尘,贺健康,田小永,等. 增材制造:实现宏微结构一体化制造[J]. 机械工程学报,2013,49(6):129-135. LI Dichen,HE Health,TIAN Xiaoyong,et al. Additive manufacturing:Realizing integrated manufacturing of macro-micro structures[J]. Journal of Mechanical Engineering,2013,49(6):129-135.
[4] ANDERSON C J,SPRUIELL M D,WYLIE E F,et al. A technique for pediatric chest wall reconstruction using custom-designed titanium implants:Description of technique and report of two cases[J]. Journal of Childrens Orthopaedics,2016,10(1):1-7.
[5] VALENTAN B,KADIVNIK Z,BRAJLIH T,et al. Processing poly(ether etherketone) on a 3D printer for thermoplastic modelling[J]. Materiali In Tehnologije,2013,47(6):715-721.
[6] VAEZI M,SHOUFENG Y. Extrusion-based additive manufacturing of PEEK for biomedical applications[J]. Virtual and Physical Prototyping,2015,10(3):123-135.
[7] YANG C,TIAN X,LI D,et al. Influence of thermal processing conditions in 3D printing on the crystallinity and mechanical properties of PEEK material[J]. Journal of Materials Processing Technology,2017,248:1-7.
[8] 赵峰,李涤尘,靳忠民,等. PEEK熔融沉积成形温度对零件拉伸性能的影响[J]. 电加工与模具,2015(5):43-47. ZHAO Feng,LI Dichen,JIN Zhongmin,et al. Effect of PEEK fused deposition forming temperature on tensile properties of parts[J]. Electric Machining and Mould,2015(5):43-47.
