英语阅读理解,求答案和分析,高手进

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英语阅读理解,求答案和分析,高手进
First Self-contained Heart Implanted
A patient on the brink of death has received the world’s firstself-contained artificial heart—a battery-powered device about the size of asoftball that runs without the need for wires, tubes or hoses sticking out ofthe chest.
Two surgeons from the University of Louisville implanted thetitanium and plastic pump during a sever-hour operation at Jewish HospitalMonday. The hospital said the patient was “awake and responsive” Tuesday and restingcomfortably. It refused to release personal details.
The patient had been expected to die within a month without theoperation, and doctors said they expected the artificial heart to extend theperson’s life by only a month. But the device is considered a major step towardimproving the patient’s quality of life.
The new pump, called AbioCor, is also a technological leap from themechanical hearts used in the 1980s, which were attached by wires and tubes tobulky machinery outside

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