法国医生成功为病人植入人工心脏

 

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 come 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 company 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.

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