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利用地震技术检测应力性骨折的早期征象 - China Medical Device Manufacturer
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Wed, January 17th, 2018

2007年1/2月CMDM电子快讯 » 技术新知
利用地震技术检测应力性骨折的早期征象

普度大学生物医学工程博士研究生Jared Diegmueller与Ozan Akkus副教授详细探讨一种有助于预防应力性骨折的设备原型。

参加赛跑等高冲击性重复运动的运动员,其承重骨经常要承受数吨重的累积力。如果运动员训练过程中安排的休息不够充分,骨头无法充分发挥再生能力,导致微小裂隙累积,最终会出现应力性骨折。这种情况在田径运动员和新兵训练中尤为普遍。普度大学(美国印第安纳州,West Lafayette)和Toledo大学(美国俄亥俄州,Toledo)的研究人员开发了一种仪器,可记录骨的声发射,从而检测细微的裂隙。

领导该项目的普度大学生物医学工程副教授Ozan Akkus解释说: "我们研究的目的在于开发一种设备原型,可侦测应力性骨折的前兆,这样,运动员就知道何时该停止剧烈活动,以获得充分休息,直到骨骼完全恢复。

地震学家利用类似技术探测地震。Akkus教授说: 这与地震的原理类似,只不过它发生在微观范围内,而且更为频繁。" 他带领的研究小组利用地震模型和模式识别软件,以更深入了解骨骼上的微小裂隙。这些裂隙多见于胫骨、腓骨和跖骨。

为了测量骨的声发射,研究人员利用柔性聚合物制成的无线传感器监测容易发生骨折的区域,该设备日后还可整合到跑鞋和运动衫等运动装具上。 这些传感器可向接收模块发送数据,数据达到一定阈值时触发报警,提醒运动员停止训练。随后,可将该数据下载到PDA上,由医疗人员进行分析,确定骨骼状况。

Akkus教授估计再过两到三年该设备即可投放市场。他说道: 该设备能够很好的进入主流市场。每个热衷于运动的人都可以使用这种产品。" 同时,他的研究小组将进一步研究运动员骨骼达到承受极限而需要休息的确切时间。Akkus解释说: 这样才能避免过早地向专业运动员发出停止训练的警告。"

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