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Zurich Researchers Develop Artificial Heart Nearly As Good As Real

Researchers Develop Artificial Heart

An artificial heart which closely imitates the real thing “in form and function” has been developed by Swiss researchers. Made from silicone and weighing just 390g (80g more than a normal, real heart), it contains a “complex inner structure,” according to developer Nicholas Cohrs, a PhD student at ETH Zurich, the institution behind the innovation.
Around 26 million people worldwide suffer from heart failure, and the new technology could potentially bridge the gap between demand and donor supply. Mirroring a real human heart, the mock muscle contains a right and left ventricle, and came to life through a 3D printer. The two chambers are separated not by a septum, but by an additional chamber which is deflated through pressurised air.

Used to pump fluid, the chamber mimics muscle contraction. “Our goal is to develop an artificial heart that is roughly the same size as the patient’s own and which imitates the human heart as closely as possible in form and functions.” said Cohrs. Although it functions similarly to the real thing, researchers found it is limited to 3,000 beats, or a maximum beating time of 45 minutes. This is due to constraints of the soft material.

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Developers did not intend for this model to become a temporary implant straight away, it has paved a new way in thinking about artificial organs.

“This was simply a feasibility test. Our goal was not to present a heart ready for implantation, but to think about a new direction for the development of artificial hearts,” Cohrs said.

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