11月 11, 2016

新西兰皮克顿论文怎么写:人体假肢材料分析

新西兰皮克顿论文怎么写:人体假肢材料分析

根据Rolf O,Gohlke F(2004)模块化假肢体现了无数选民,有点的制服。例如,完成膝关节假体的组成部分主要结合(condoyle服务、时期、销、灌木、胫骨等等),和无数的模块化部分(股骨,胫骨干,模块化的链接,等等),为术中弹性。首席结合本身可以有无数的方面:左、右结合,和巨大的中、小组合,依赖于病人。不同的成分通常是在不同的材料,生产过程必须预计完成想要的内在属性,几何保真度,接受,外表面。雇佣一个合适的快速原型系统假肢原型可能是捏造的。这些极其功能观察表明和考试的情况下。根据Allieu Y,Marck G,et al(1990)病人另外可能的解剖结构的采用RP的安排,并对拟合与假肢功能检查,手术病人的协议安排和教育。

新西兰皮克顿论文怎么写:人体假肢材料分析

小RP使用半透明的干道系统,使想象的内在特征。样品还可以用于生产排练植入金属或每个补充体力,在一系列的转换过程熔模铸造或覆盖或硅橡胶成型。简单金属成分的假肢棒料可以加工。Co-Cr-Mo装置和钛的合金额外的困难与不锈钢相比,在切削工具的磨损。根据Rolf O,Gohlke F(2004)的股票通常是得到伪造完成更好的内心的东西,包括强度、韧性和抗疲劳。错综复杂的形式如髁膝关节相结合可以额外节约地由熔模铸造过程;然而内部孔隙度可以减少由于可靠性较低的强度和抗疲劳。这可能是增强了热等静压,不过,能够抓住价格水平都包含在加工中最重要的聚合物利用卫生请求UMHWPE(超分子沉重聚乙烯升高)。根据Inagaki K(2013)这些选民膝盖制造两种方式中的一种:从棒料加工,或者管理压缩成型。加工过程会导致跨越的压力升高,这可能最终导致聚合物组件的分解。

新西兰皮克顿论文怎么写:人体假肢材料分析

According to Rolf O, Gohlke F, (2004) a modular prosthesis embodies countless constituents, a little of that maybe uniform. For instance, the components of a finished knee prosthesis are main combined (condoyle serving, period, pin, shrub, tibial etc.), and countless modular portions (femoral stem, tibial stem, modular links, etc.) that furnish intra-operative elasticity. The chief combined itself could have countless aspects: right and left combined, and colossal, medium and tiny combined, reliant on the patients. The disparate constituents are normally in disparate materials, and the producing procedures have to be projected to accomplish the wanted inner properties, geometric fidelity, acceptances, and external surface. Employing a suitable Quick prototyping system the prosthesis prototype could be fabricated. These are extremely functional for observing the enunciation and examination of the magnitudes. According to Allieu Y, Marck G, et al (1990) to the anatomical construction of the patient could additionally be made-up employing a RP arrangement, and is functional for examination for fitting alongside the prosthesis, surgery protocol arranging and education of the patient.

新西兰皮克顿论文怎么写:人体假肢材料分析
Translucent arterials are used by little RP systems, which render picturing of inner characteristics. The samples can additionally be utilized for producing rehearse implants in metal or each supplementary physical, across a sequence of conversion procedures like investment casting or cover or silicon rubber molding. Easy metallic constituents of prostheses from bar stock could be machined back. Co-Cr-Mo and alloys of titanium are extra tough to contraption as compared to stainless steel, in words of cutting instrument wear. According to Rolf O, Gohlke F, (2004) the stock is normally gotten from falsifying to accomplish better inner things, encompassing strength, toughness and exhaustion resistance. Intricate forms such as the condyle of knee combined can be extra frugally produced by investment casting procedure; nevertheless inner porosity could cut their reliability owing to lower strength and exhaustion resistance. This could be enhanced by Hot Isostatic Pressing, that could though, seize the price to the alike levels as that encompassed in machining The most vital polymer utilized in health requests is UMHWPE (ultra elevated molecular heaviness poly ethylene). According to Inagaki K, (2013) these constituents for the knee are manufactured in one of two ways: machining from bar stock, or manage compression molding. The machining procedures can result in spans of elevated stress, which could in the end lead to break down of the polymer component.

Copyright © 2020 · Essay Times 论文时 All Rights Reserved · Service & Product Provided Are Used Solely for The Purpose of Research Only