新型3d打印骨折稳定外固定装置的设计与研制。

IF 3.2 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Nathan Wm Skelley
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引用次数: 0

摘要

背景:外固定架是一种用于稳定高能创伤后长骨骨折的矫形装置。这些装置在身体外部,固定在金属钉上,进入未受伤的骨骼区域。它们具有保持长度、防止弯曲和抵抗断裂区域扭矩的机械功能。本文的目的是描述一个设计和原型制作过程,创造一个低成本的全3d打印外固定架,用于四肢骨折的骨折稳定。这份手稿的次要目标是促进未来的进步,修改,并在这一领域的医学3d打印创新。方法:本文描述了使用桌面熔融沉积建模的计算机辅助设计过程,以创建用于骨折稳定的3d打印外固定系统。该装置用于骨折外固定固定的骨科目标。然而,考虑到桌面熔融沉积建模和塑料聚合物3d打印的局限性,必须考虑特殊的修改和考虑因素。结果:该装置实现了可以附着在5.0 mm金属钉上的结构,允许放置方向的模块化,并且有利于骨折护理的可调节长度。此外,该装置提供长度稳定性,防止弯曲,并抵抗扭力。该设备可以使用标准的低成本聚乳酸长丝在台式3d打印机上打印。打印时间少于两天,可在一个打印床平台上完成。结论:该装置是骨折稳定的潜在替代方案。桌面3d打印外固定架的概念设计和生产方法允许许多不同的应用。这包括协助偏远地区或获得先进医疗服务的机会有限的地区,以及大规模自然灾害或全球冲突地区,这些地区的大量骨折超出了当地医疗供应链的能力。该设备为未来骨折护理领域的设备和创新奠定了基础。在临床应用之前,需要进一步研究这种设计和首创在骨折护理中的力学测试和临床效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Design and Development of a Novel 3-D Printed External Fixation Device for Fracture Stabilization.

Design and Development of a Novel 3-D Printed External Fixation Device for Fracture Stabilization.

Design and Development of a Novel 3-D Printed External Fixation Device for Fracture Stabilization.

Design and Development of a Novel 3-D Printed External Fixation Device for Fracture Stabilization.

Background: An external fixator is an orthopaedic device used to stabilize long bone fractures after high energy trauma. These devices are external to the body and fixed to metal pins going into non-injured areas of bone. They serve a mechanical function to maintain length, prevent bending, and resist torque forces about the fracture area. The purpose of this manuscript is to describe a design and prototyping process creating a low-cost entirely 3-D printed external fixator for fracture stabilization of extremity fractures. The secondary objective of this manuscript is to facilitate future advancements, modifications, and innovations in this area of 3-D printing in medicine.

Methods: This manuscript describes the computer aided design process using desktop fused deposition modeling to create a 3-D printed external fixator system designed for fracture stabilization. The device was created using the orthopaedic goals for fracture stabilization with external fixation. However, special modifications and considerations had to be accounted for given the limitations of desktop fused deposition modeling and 3-D printing with plastic polymers.

Results: The presented device accomplishes the goals of creating a construct that can be attached to 5.0 mm metal pins, allows for modularity in placement orientations, and facilitates adjustable lengths for fracture care. Furthermore, the device provides length stability, prevention of bending, and resists torque forces. The device can be printed on a desktop 3-D printer using standard low-cost polylactic acid filament. The print time is less than two days and can be completed on one print bed platform.

Conclusions: The presented device is a potential alternative for fracture stabilization. The concept of a desktop 3-D printed external fixator design and method of production allows for numerous diverse applications. This includes assisting areas with remote or limited access to advanced medical care and large-scale natural disasters or global conflicts where large volumes of fractures exceed the local medical supply chain capabilities. The presented device creates a foundation for future devices and innovations in this fracture care space. Further research is needed on mechanical testing and clinical outcomes with this design and initiative in fracture care before clinical application.

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