Health Care

3D printing helps ETH Zurich scientists create beating silicone heart

3D printing helps ETH Zurich scientists create beating silicone heart

Heart diseases rank first among causes of death.

Scientists at ETH Zurich recently used 3D printing to create a functional silicone heart that beats nearly like the real thing.

It's comprised of a left and right ventricle which are separated by another chamber that inflates and deflates with air pressure, thus mimicking the pumping action of the human heart.

They proved that the soft artificial heart fundamentally works and moves in a similar way to a human heart. These artificial hearts help to keep patients alive while they wait for an organ donor or until their own hearts recover.

One problem with artificial hearts is that metal and plastic mechanisms can be hard to integrate with tissue, or damage the blood due to their unnatural movement style. The artificial heart can last for around 3,000 beats, or 30 to 45 minutes. The silicone heart has been developed by Nicholas Cohrs, a doctoral student in the group led by Wendelin Stark, Professor of Functional Materials Engineering at ETH Zurich.

In the future, it could be used as an temporary heart instead of the blood pumps hospitals use today for patients waiting for a heart transplant.

Researchers at ETH Zurich have created a silicone artificial heart using a 3D printer.

Narcos Season 3 Trailer Shows The Calis As The Top Dogs
As is the case with most successful programmes, Narcos will soon return to Netfix for its third season. In the third season, the focus shifts to the Cali Cartel, who are led by four powerful godfathers.

There are many reasons why this silicone heart couldn't be implanted into a human body. Cohrs noted that it is a silicone monoblock with a complex inner structure.

After the tests, researchers found that at this moment the material can sustain only for around 3,000 beats that are less than an hour considering normal pulse.

Despite this doctoral student Anastasios Petrou, part of the Product Development Group Zurich, believes the "system is probably one of the best in the world". After that, the material can no longer withstand the strain.

But the heart is a success in other ways: "This was simply a feasibility test", Cohrs said.

Some doctoral students of the Product Development Group Zurich are also now working on new technologies for artificial hearts, and have successfully developed a testing environment in which they can mimic the human cardiovascular system. "Our goal was not to present a heart ready for implantation, but to think about a new direction for the development of artificial hearts", said Cohrs. This subsequent research was published in Artificial Organs. Doctoral students of Product Development Group Zurich, who are working on new technologies for blood pumps, have developed a testing environment with which they can simulate the human cardiovascular system.

This is definitely a solid approach, and it could inspire the development of other artificial organs as well.


  • Wal-Mart Stores, Inc. (WMT): Are There Still Some Reasons For Optimism?

    Wal-Mart Stores, Inc. (WMT): Are There Still Some Reasons For Optimism?

    Neither company is a slouch on capital allocation, and direct cash makes up a significant chunk of overall shareholder returns. It is negative, as 97 investors sold WMT shares while 540 reduced holdings. 77 funds opened positions while 479 raised stakes.
    Nawaz Sharif going to Jeddah; ticket leaked on Whatsapp

    Nawaz Sharif going to Jeddah; ticket leaked on Whatsapp

    He claimed Nisar may lead certain group of MNAs in the coming future that will deal a heavy blow to the PML-N. Pakistan's opposition parties have demanded his resignation after the scathing indictment by the JIT.
    Garbine Muguruza has easy match on way to Wimbledon final

    Garbine Muguruza has easy match on way to Wimbledon final

    Interestingly, however, that same year Muguruza went on to reach the Wimbledon finals, losing a tight match to Serena Williams . Then, at the Australian Open in January, Williams reached the final, where she lost to - yes, you guessed it - her sister.
  • New 'Incredibles 2', 'Toy Story 4' Details Revealed at D23

    Produced by Clark Spencer ( Zootopia , Wreck-It Ralph, Bolt ), Wreck-It Ralph 2 will feature the return of stars John C. He continued with a bit more detail, "It starts with the Underminer and a big old set piece.
    Caitlyn Jenner: Rob Kardashian Was

    Caitlyn Jenner: Rob Kardashian Was "Stupid" for Blac Chyna Rant

    Chyna has since obtained a restraining order against her ex ordering him to stop cyberbullying her and to stay away from her. Blac Chyna has opened up about what kind of man she'd like to settle down with amid her drama with Rob Kardashian .

    Trump Jr. and Kushner find politics a rougher game than real estate

    Fordham's analysis comes as one Congressional Democrat has taken the first official step toward impeaching Donald Trump . The president's son has tried to discount the meeting, saying he did not receive the information he was promised .
  • Target jumps in premarket as second quarter is seen ahead of guidance

    Target jumps in premarket as second quarter is seen ahead of guidance

    The current share price indicates that stock is -4.57% away from its one year high and is moving 84.83% ahead of its 52-week low. Over the last 5 years, Target Corporation has averaged a 1.40% YoY EPS growth rate and a -0.10% revenue growth rate.
    Pentagon: Abu Sayed, Head of Afghan IS, Killed in US Raid

    Pentagon: Abu Sayed, Head of Afghan IS, Killed in US Raid

    Sayed's reported death makes him the third Isis leader in Afghanistan to be killed by allied forces in the past twelve months. Two American soldiers were also killed, possibly through so-called "friendly fire" officials said at the time.
    Spurs renounce rights to Jonathon Simmons, making him unrestricted free agent

    Spurs renounce rights to Jonathon Simmons, making him unrestricted free agent

    However, the Spurs backed out of the trade because Chandler has two years and $26 million remaining on his contract. This contrasts Adrian Wojnarowski of ESPN's report , who said Simmons and the Spurs were still talking.
  • Two men charged with killing four in Pennsylvania

    Two men charged with killing four in Pennsylvania

    DiNardo told authorities that a co-conspirator from Philadelphia was involved in three of the deaths, the person said. DiNardo's family owned multiple properties, including the farm on which the human remains were found, worth millions.
    Magnitude Earthquake Strikes Oklahoma; Aftershocks Felt In NWA

    Magnitude Earthquake Strikes Oklahoma; Aftershocks Felt In NWA

    The quakes have been attributed to the injection of saltwater, a normal byproduct of oil and gas production, into disposal wells. In November 2016, a magnitude 5.0 natural disaster impacted residents and businesses about two miles (3.2 km) west of Cushing.
    Indian forces kill 3 as Kashmir clashes intensify

    Indian forces kill 3 as Kashmir clashes intensify

    India also cold-shouldered the Chinese offer to mediate between India and Pakistan on the issue of Kashmir. He said that in 2017, India committed 542 ceasefire violations in which 18 innocent civilians were killed.