一个灵活的全向旋转磁阵列,用于MRI安全的通过灵活的电子产品收集穿皮无线能量
Mingxing Zhou1, Sui Mao1, Ziyue Wu1
1Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China.
Science advances
|August 16, 2023
概括
一个新的灵活的全向旋转磁阵 (FORMA) 能够为可植入设备进行MRI安全的无线能量采集. 这项创新提高了患者的安全性,并支持长期的无电池医疗系统.
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
- 医疗器械 医疗器械
背景情况:
- 针对大脑疾病,听力障碍和心律失常的植入式设备需要可靠的电源.
- 目前的MRI兼容系统使用刚性磁铁,在成像过程中冒着脱离和故障的风险.
- 需要更安全,更灵活的能源采集解决方案,用于长期植入物.
研究的目的:
- 开发一种灵活的,MRI安全的无线能量采集系统,使用一种新的磁阵列.
- 为了克服可植入医疗器械中的刚性磁铁的局限性.
- 为了使可植入系统能够长期无电池运行.
主要方法:
- 使用3D打印模板和微型磁球开发灵活的全向旋转磁阵列 (FORMA).
- 将FORMA集成到一个灵活的MRI安全无线能量收集系统中.
- 在加速下测试系统稳定性,并在特定频率测量输出功率.
主要成果:
- 在9g加速下,FORMA系统表现出稳定的运行.
- 在距离1毫米的距离上达到2.14牛顿的磁力.
- 在8MHz传输频率下,输出功率为15.62dBm.
结论:
- 灵活的FORMA系统为MRI安全的植入式设备提供了比刚性磁铁更安全的替代方案.
- 这项技术为终身,灵活,无电池的植入式系统铺平了道路.
- 有潜力推进急性和慢性疾病的监测和治疗技术.
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