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电池能用一世纪 核能人造心脏获进展 - 站长搜索
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电池能用一世纪 核能人造心脏获进展

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2016-06-11 06:45:21 转载来源: 网络整理/侵权必删

美国,心脏病的死亡率排名第一,而目前,为了取代病变心脏,植入一个人造心脏的方案已屡见不鲜。人工心脏的能源依靠的是电池,但电池存在严重的缺陷

美国,心脏病的死亡率排名第一,而目前,为了取代病变心脏,植入一个人造心脏的方案已屡见不鲜。人工心脏的能源依靠的是电池,但电池存在严重的缺陷。首先它们容易发热,其次它们还需要每日充电,人工心脏的电池工作寿命只有两年。

核能人造心脏获进展,电池能用一世纪

美国国家心脏研究所(NHI)和原子能委员会(AEC)十多年来一直在尝试设计一颗核能心脏,日前,他们的研究取得了突破性进展,核能人造心脏离临床试验又近了一步――研究人员尝试用钚238(一种放射性元素)来为人造心脏提供能量,这种元素的自然放射衰变能够使它发散出长达一个世纪的稳定热量,从而推动血液在人体中流动。

但要真正将核能人造心脏移植到人体中,还需要设计出不被人体排斥的机械泵,并结合一种安全有效的装置来将热量转换成能量。如何控制对人体的辐射影响,也是这项研究的重要突破点。

标签: 电池 能用 一世纪 核能 人造 心脏 进展


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