螺旋式微线结构电极的移除力
Amelia Howe1, Zhanda Chen1, Kyle Golobish1
1Neuronoff, Inc., Cleveland, OH 44106, USA.
Bioengineering (Basel, Switzerland)
|June 27, 2024
概括
通过使用螺旋式电极结构而不是线性结构,可以减少医疗器械移除力. 这种螺旋式设计可以尽量减少组织创伤和设备在扩张过程中的骨折,确保更安全的医疗设备移除.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 神经外科 神经外科
背景情况:
- 医疗器械爆炸可能会导致显著的组织创伤和设备骨折由于移除力.
- 设备与周围组织的相互作用是影响移除力的一个关键因素.
- 研究了螺旋和线性电极结构,以研究无创性移除.
研究的目的:
- 为了测试一个假设,一个设备的形状因素影响移除力.
- 为了比较螺旋结构与线性电极结构的移除力.
- 评估医疗器械拆卸螺旋设计的安全性和有效性.
主要方法:
- 使用黄金 (Au) 和- (Pt-Ir) 制造可伸缩的线性和螺旋式微电线电极.
- 使用合成凝模型测量去除力.
- 在慢性植入后 (1年) 的动物和猪模型中评估移除力.
主要成果:
- 在合成和动物模型中,螺旋式设备的最大移除力明显低于线性设备.
- 慢性植入表明螺旋式装置在7.30 N以下具有最大的移除力.
- -螺旋装置的安全系数为4.50,拉伸失效力为32.90 ± 2.09 N.
结论:
- 开放核心螺旋结构设计可降低医疗器械的移除力.
- 这种螺旋式设计促进了无创性移除,最大限度地减少了组织创伤和设备损伤.
- 这些发现支持使用螺旋结构来实现更安全,更高效的医疗器械扩展.
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