. TIANJIN Oct. 12 (Xinhua) - An artificial heart new design technology-driven Chinese rocket is on trial in patients with weak hearts

tests began on 13 September for clinicians in the TEDA International Cardiovascular hospital in northern China, Tianjin municipality. After being implanted in a male patient aged 63 to replace his failed heart, the device has functioned as a pump for supplying blood throughout the body, significantly relieve the symptoms of heart failure, said Liu Xiaocheng, principal investigator clinical program and the head of the hospital

. HeartCon Called the artificial heart weighs only 180 grams and is smaller than the size of a fist. Is a result of long-term cooperation between the hospital and the China Academy of Launch Vehicle Technology, manufacturer of the most important rocket the country

. Xu Jian, chief engineer of the project, said the artificial heart works as a servomechanism of a rocket, which is powered by a hydraulic pump

.. A uses servomechanisms feedback for controlling an operation

"the servomechanism in a rocket has higher requirements of speed and power, while the artificial heart demands more attention to safety and comfort because it is small and has to be implemented, "Xu said.

scientists began developing the artificial heart in 2009 and used magnetic levitation liquid, used in rocket servo technology, to produce a third generation implantable ventricular assist device, a mechanical pump to support the heart function while causing less damage to the blood of patients evious types pr

. From the artificial heart uses a blood pump and power needs for energy, it works with external batteries. The implantation of an artificial heart requires a wire, more thinner than a toothpick, to pass through the stomach of the patient to connect the batteries of the controller and external

. ALTERNATIVE A heart transplant

animal experiments started in 2013. A sheep with the artificial heart survived 120 days. Four years later, the scientists implanted the HeartCons in six sheep and set a new record as one of them survived 180 days

. In March 2019 two critically ill patients who were implanted HeartCons to extend their life, survived

. There are at least 16 million people with defective hearts in China. For patients in advanced stages of heart failure, transplants are the only solution. However, transplants are limited by the lack of donors and many die waiting

"Since 2013, the ventricular implanted assistive devices worldwide. have surpassed heart transplants in the number and survival rate, "Liu said. "The longer survival of patients with artificial heart is more than 15 years."

anticoagulants Moreover, patients only need an artificial heart after surgery. Do not require several anti-rejection drugs that recipients of heart transplant have to take, Liu said, adding that with the advancement of technology, the artificial heart can completely replace transplants

The artificial heart can be replaced if there is a malfunction

For child patients, Liu's team is developing a lighter HeartCon, which will have a weight of 80 grams

compared with imported artificial heart, which costs as much as $ 200,000, the HeartCon come for much less, bringing benefits to more patients in China Liu said. End


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