康复运动驱动的共生电刺激系统加速骨再生
Tianlong Wang1,2, Han Ouyang3, Yiping Luo1,2
1Center for Orthopaedic Science and Translational Medicine, Department of Orthopedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China.
Science advances
|January 5, 2024
概括
这项研究介绍了一种无电池,可植入的电刺激系统,用于骨愈合. 该设备加速骨再生和矿化,提供一种轻量级的解决方案,以改善患者的恢复.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 材料科学 材料科学 材料科学
背景情况:
- 电刺激可以加速骨愈合,但目前的设备是重和重的.
- 开发用于骨再生的轻量级,灵活的植入式刺激器仍然是一个挑战.
研究的目的:
- 开发一种无电路或无电池的可植入的微电子刺激器,用于骨再生.
- 评估开发的系统在促进骨缺陷修复方面的有效性.
主要方法:
- 混合式 triboelectric/piezoelectric纳米发电机与导电生物活性水凝相结合,创建了骨缺陷电刺激 (BD-ES) 系统.
- 作为回应康复运动,BD-ES系统会产生双相电脉冲.
- 该系统对骨质生成相关的生物过程和骨愈合的影响在老鼠大腿缺陷模型中进行了评估.
主要成果:
- 该BD-ES系统增强了离子进口和骨质生成差异化.
- 在大鼠中,关键大小的股骨缺陷在6周内完全愈合.
- 该系统证明了有效的骨缺陷逆转和矿化.
结论:
- 开发的自动供电BD-ES系统为骨再生中的电刺激疗法提供了一种轻量级和灵活的解决方案.
- 这种无电池和无电路的技术推动了共生电刺激装置的开发,以加强骨愈合.
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