钻孔后颅骨重建种植体的研制及力学性能测试

IF 0.8 4区 医学 Q4 ENGINEERING, BIOMEDICAL
Julia Bodnarova, Adam Kratochvil, Matej Daniel
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引用次数: 0

摘要

钻孔穿刺术是一种外科手术,在颅骨上打一个或多个小孔或钻孔,以便排出液体或缓解颅骨内的压力。钻孔钻孔术通常被认为是一种安全有效的治疗脑脓肿和硬膜下血肿的方法。然而,骨缺损必须在手术后用合适的种植体封闭。目前的设计大多基于骨板,其使用寿命有限,可进行翻修,美观度低。在本研究中,提出了一种使用增材制造(AM)技术制造的新型颅骨植入物。植入物固定在毛刺孔内,不穿透颅骨间隙或突出颅骨。在分析模型的基础上提出了四种不同类型的植入物,并使用有限元分析(FEA)进行了验证。介绍了采用人工骨的新型推入式力学试验,以确定锁定机构的强度,确保植入物的安全性。在骨表面重叠的钻孔种植体被证明是最安全的解决方案。新颅种植体的设计可以显著改善术后的美观效果,并减少再手术的侵入性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development And Mechanical Testing Of Implant For Cranial Reconstruction After Burr Hole Trepanation
Burr hole trepanation is a surgical procedure in which one or more small holes, or trephines, are made in the skull to allow for the drainage of fluids or to relieve pressure within the skull. Burr hole trepanation is generally considered a safe and effective treatment for conditions such as brain abscesses and subdural hematomas. However, the bone defects must be closed after the surgery with a suitable implant. Current designs are mostly based on bone plates with limited lifetime, revision access, and low aesthetic. Within this study, a new type of cranial implant is proposed made using additive manufacturing (AM) techniques. The implant is anchored in the burr hole and does not penetrate the skull space or prominate the skull. Four different types of implants have been proposed on the basis of an analytical model and verified using finite element analysis (FEA). New push-in mechanical tests are introduced using artificial bone to determine the strength of the locking mechanisms and ensure the safety of implants. The burr-hole implant with an overlap on the bone surface after implantation was proven to be the safest solution. The design of the new cranial implant can significantly improve the aesthetic outcome after surgery and minimize invasiveness in reoperations.
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来源期刊
CiteScore
1.80
自引率
11.10%
发文量
56
审稿时长
6-12 weeks
期刊介绍: The Journal of Medical Devices presents papers on medical devices that improve diagnostic, interventional and therapeutic treatments focusing on applied research and the development of new medical devices or instrumentation. It provides special coverage of novel devices that allow new surgical strategies, new methods of drug delivery, or possible reductions in the complexity, cost, or adverse results of health care. The Design Innovation category features papers focusing on novel devices, including papers with limited clinical or engineering results. The Medical Device News section provides coverage of advances, trends, and events.
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