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延长寿命5年的人工心脏

延长寿命5年的人工心脏

分类:科技Science   更新:2015/4/20   来源:科技Science

延长寿命5年的人工心脏

    An artificial heart that can give patients up to five years of extra life has been successfully implanted for the first time.
    法国巴黎蓬皮杜医院医生成功地为病人体内植入一颗能为他延长寿命5年的人工心脏。
    The heart, powered by watch-style batteries that can be worn externally, was put into a patient at Paris's Georges Pompidou Hospital.   It uses a range of "biomaterials", including bovine2(牛的) tissue, to reduce the likelihood of the body rejecting it.   Unlike previous artificial hearts, created mainly for temporary use, the design by the French Carmat biomedical firm is intended to replace a real heart for as many as five years.   French medics said the unnamed male patient who received the device was awake and responding well after an operation on Wednesday. Marcello Conviti, the chief executive of Carmat, said: "We are delighted with this first implant1, although it is premature3 to draw conclusions given that a single implant has been performed and that we are in the early post-operative phase."   The artificial heart, developed with the help of engineers from the Dutch-based European Aeronautic4 Defence and Space Company (EADS), weighs 2lbs -- almost three times as much as an average healthy human heart. It mimics5 heart muscle contractions6 and contains sensors7 that adapt the blood flow to the patient's moves.   Inside the heart, surfaces that nete into contact with human blood are made partly from bovine tissue instead of synthetic8 materials such as plastic, which can cause blood clots9.   The new device could help thousands of people who die each year while waiting for a donor10, including many in Britain. Nearly 100,000 people in Europe and the United States are in need of a heart transplant, according to Carmat. The netpany claims its device should enable hospital patients to return home and possibly even resume work.   Alain Carpentier, the surgeon who performed the implant, said: "It's about giving patients a normal social life with the least dependence11 on medication as possible.   "We've already seen devices of this type but they had a relatively12 low autonomy. This heart will allow for more movement and less clotting13. The study that is starting is being very closely watched in the medical field." Heart failure affects more men than women, and the size of the artificial heart means it can fit in 86 per cent of men's bodies but only about 20 per cent of women. However, Carmat says it can manufacture a smaller version to fit the more petite bodies of women as well as patients in India and China.   The artificial heart will raise France's reputation as a country at the forefront of medical innovation.
    点击收听单词发音 
    1 implant      vt.注入,植入,灌输 参考例句:
    A good teacher should implant high ideals in children.好教师应该把高尚理想灌输给孩子们。
    The operation to implant the artificial heart took two hours.人工心脏植入手术花费了两小时。
    2 bovine      adj.牛的;n.牛 参考例句:
    He threw off his pack and went into the rush-grass andand munching,like some bovine creature.他丢开包袱,爬到灯心草丛里,像牛似的大咬大嚼起来。
    He was a gentle,rather bovine man.他是一位文雅而反应迟钝的人。
    3 premature      adj.比预期时间早的;不成熟的,仓促的 参考例句:
    It is yet premature to predict the possible outnete of the dialogue.预言这次对话可能有什么结果为时尚早。
    The premature baby is doing well.那个早产的婴儿很健康。
    4 aeronautic      adj.航空(学)的 参考例句:
    Something akin to panic swept the National Aeronautic and Space Agency. 一种近乎恐慌的心情席卷了国家宇航局。 来自辞典例句
    They are widely used in electronic instruments aeronautic instruments etc. 此类轴承在各类电子仪器中得以广泛运用。 来自互联网
    5 mimics      n.模仿名人言行的娱乐演员,滑稽剧演员( mimic的名词复数 );善于模仿的人或物v.(尤指为了逗乐而)模仿( mimic的第三人称单数 );酷似 参考例句:
    Methods:Models were generate by CT scan,Mimics software and Abaqus software. 方法:采用CT扫描,Mimics软件和Abaqus软件的CAD进行三维有限元模型的创建。 来自互联网
    Relaxing the mind and body mimics the effect that some blood-pressure pills would have. 放松身心会产生某些降压药才能产生的效果。 来自辞典例句
    6 contractions      n.收缩( contraction的名词复数 );缩减;缩略词;(分娩时)子宫收缩 参考例句:
    Contractions are much more netmon in speech than in writing. 缩略词在口语里比在书写中常见得多。 来自《简明英汉词典》
    Muscle contractions are powered by the chemical adenosine triphosphate(ATP ). 肌肉收缩是由化学物质三磷酸腺苷(ATP)提供动力的。 来自辞典例句
    7 sensors    &n

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