A heart that beats, but leaves you pulseless!

Just think, an artificial hear that leaves patients without a pulse? Sounds crazy but believe it or not it just might be possible. Texas scientist are designing a artificial heart that dose just that. The key factor in this is a constant flow pump, first used in ancient Greece as an elongated screw encased in a tube to raise water from one level to another. Over 1, 006 patients have had screw-shaped pump implanted to help their ventricles pump blood to the rest of their body. Even though they still have a natural heartbeat but you are unable to detect a pulse.
Doctors for the Texas Heart Institute are teaming up with scientist from the University of Huston to completely replace the beating of a human heart with a humming constant flow pump. Doctor Ian Fraizer says that it won't perfectly match a natural heart's activity but it will preform the same function. Total artifical replacments hearts alreay exist and have been implanted into patiens. Although the mechanical hearts pump blood, many have failed after one or two years due to mechanical faulires realated to the pumping action. The artifical hearts are a way to buy more time for patients until a nautral hear becomes availavble for transplant.
The hearts today are too large aren't meant for women, children and most men, but the constant flow pump would be much smaller and be about the size of a C cell battery. By being smaller that means they could be used in a wider variety of people, even children. The constant flow pump would also be more resistant to mechanical failures which means they woud be able to last longer then a few years.
Scientists plan to use two pumps working together to produce blood to the ret of the body and eventually one screw-shaped pump could replace both values. Doctor Timothy Baldwidn of the National Insitutes of Health says that before the constant flow pump replaces the human heart, years of studied are needed to test its efficancy.
Doctor Baldwin also says that the artifical heart could benfit many people in the furture, although they say that permanelty eliminating one of the most dunfamental sgins of being alive is a big deal. Scientes aren't sure of the long-term effects of constant blood pressure will be.
Although because patients have done well in the past, it only makes doctors more confident.