Biomechanics of Needle Insertion

进针的生物力学

• 批准号: LX0560460
• 负责人: Prof Karol Miller
• 金额: $ 1.92万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-05-17 至 2008-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0560460
• 关键词: Biomechanics; Needle; Insertion

Needle insertion is one of the most common neurosurgical procedures. However, the biomechanics of this process is poorly understood. The unknown factors include brain tissue deformation under load imposed by the needle and needle deflection when penetrating brain tissue. We will develop computational models of needle insertion. They will include non-linear material properties of the brain tissue, large deformations, and needle-tissue contact model including friction. The Japanese group will develop testing methods to validate mathematical models. Experimental set-up includes bi-axial x-ray to measure deformation within the tissue and needle deflection, and a sensor measuring reaction force on needle tip and friction force on needle sides.

针插入是最常见的神经外科手术之一。然而，这个过程的生物力学知之甚少。未知因素包括在针施加的载荷下的脑组织变形和针穿透脑组织时的偏转。我们将开发针头插入的计算模型。它们将包括脑组织的非线性材料特性、大变形和包括摩擦的针-组织接触模型。这家日本公司将开发测试方法来验证数学模型。实验装置包括测量组织内变形和针偏转的双轴X射线，以及测量针尖上的反作用力和针侧摩擦力的传感器。