与平面环相比,形的中枢取消整形环经历的力量较低
Morten O Jensen1, Henrik Jensen, Morten Smerup
1Department of Cardiothoracic & Vascular Surgery, Aarhus University Hospital, Skejby, 8200 Aarhus N, Denmark. morten.jensen@ki.au.dk
Circulation
|October 10, 2008
概括
形的结婚整形环在抽缩期间提供了比平面环更好的力分布. 这种改进的力统一性可能会提高中枢修复手术的耐用性.
科学领域:
- 心血管外科心血管外科
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
背景情况:
- 密特拉的维修需要耐用的结核整形戒指设计.
- 了解3D动态环形状的行为对于改善环形功能至关重要.
- 当前的结婚整形戒指可能会导致压力分布不均.
研究的目的:
- 为了测试坐形的结婚整形环是否提供比平面环更均的缩力分布.
- 评估环形状对环形力分布的影响.
- 评估对中枢门维修耐久性的影响.
主要方法:
- 在16只猪体内植入了平面或形的结婚整形环.
- 测量了使用声微米度的三维动态几何体的 mitra annulus.
- 使用环上的张力表来量化手术内环状力.
主要成果:
- 形环显示了统一的力分布,力不大于零.
- 平面环在前部和后部部分表现出显著的力积累.
- 戒指植入改变了环状的配置,以形的戒指保持更生理的缩形状.
结论:
- 与平面环相比,形无环塑形环可以实现更优越,更均的环状力分布.
- 这种均的力分布将可能对传单和和弦造成破坏性的外平面力降到最低.
- 形的环可能代表了对关节修复的改进设计.
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