The artificial heart is not beating

In the representation of people pulse is one of the main signs of life. But U.S. scientists have developed a method to maintain the circulation of blood in the body without the usual heartbeat.Researchers around the world are spending a huge amount of effort to develop the perfect artificial heart, which is not out of order, do not wear out, did not cause the formation of blood clots and did not increase the risk of infection. It seems that Dr. Billy Cohn and Bud Freyziru from the Texas Institute of Health was able to solve this problem. The particularity of their offspring is that it does not correspond to the traditional view of the heart. It is not "beating", and his work, respectively, does not cause ripple vessels. Therefore, if the time patients begin to implant these devices, the results of an electrocardiogram (ECG) will always look like a straight line.At the heart of the development is the technology used in heart failure with 80s. Supporting ventricular system (VAD) is usually used to support the work of one of the ventricles of the heart. This system includes a rotor with blades, which rotates, creating a continuous flow of blood.In order to ensure the functioning of the two circulation, usually supported by the right and left halves of the heart, the researchers combined two ventricular support system, and tested the resulting device in calves. At present they are in the care of an 8-month animal whose heart is surgically replaced with a twin-rotor pump is described. Calf looks perfectly healthy and active lifestyle. However, the results of any traditional medical tests that evaluate the heart of animal, of course, incompatible with life.After testing for 38 calves developers have gone further and proposed implanting the device 55-year-old Craig Lewis, dies of amyloidosis. The heart of this patient was so severely damaged that, according to doctors, he had only 12 hours to live. Lewis and his wife agreed to the operation, which gave him another month of life, and then he died because of the defeat of other vital organs.According to the developers, despite the obvious success, before the introduction of the new artificial heart in clinical practice they still have a lot of work. Necessary to determine the final design of the device, find the manufacturer and apply for official approval to the Office of FDA Food and Drug Administration United States.