Tag Archives: heart

Artificial heart implanted in France

Artificial heart implanted in France

For the first time, a bioprosthetic heart that may give patients up to five years of extra life has been successfully implanted in a 75-year-old French man.

The procedure was performed on December 18th at France’s Georges Pompidou European Hospital, and the patient is said to be doing well.

The artificial heart, designed by French biomedical firm Carmat, is powered by Lithium-ion batteries that can be worn externally.

The artificial heart, designed by French biomedical firm Carmat, is powered by Lithium-ion batteries that can be worn externally.

The artificial heart, designed by French biomedical firm Carmat, is powered by Lithium-ion batteries that can be worn externally.

The heart that was put into the patient uses a range of “bio-materials”, including bovine tissue, to reduce the likelihood of the body rejecting it, ‘The Telegraph’ reported.

This device is intended to replace a real heart for as many as five years, unlike previous artificial hearts that were created mainly for temporary use.

Carmat’s artificial heart is three times heavier than an average healthy human heart.

The patient is currently awake in the intensive care unit and is speaking with family members.

“We are delighted with this first implant, although it is premature to draw conclusions given that a single implant has been performed and that we are in the early post-operative phase,” Marcello Conviti, the chief executive of Carmat, said.

The device mimics heart muscle contractions and contains sensors that adapt the blood flow to the patient’s moves, the report said.

Heart can be turned ON and OFF by a light switch

Heart can be turned ON and OFF by a light switch

Millions of people around the world suffer from some degree of cardiac arrhythmia, wherein a person’s heart beats too slowly, too quickly or at irregular intervals. Such heart rhythm problems can cause a shortness of breath, fainting and, in worst-case scenarios, death.

The good news is devices like pacemakers and defibrillators allow doctors to introduce electrical signals to set patients’ hearts at regularly timed beats.

But these small mechanical devices come with risks.

Patients must undergo invasive surgical procedures to permanently implant the devices, which can cause cardiac tissue damage. There are other challenges too, such as lifestyle limitations and the occasional battery malfunction.

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Oscar Abilez, a cardiovascular physician with a doctorate in bioengineering is working with a team of Stanford scientists to develop a novel biological pacemaker – one that controls the human heart with light.

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Scientists build a living patch for damaged hearts

Scientists build a living patch for damaged hearts

Duke University biomedical engineers have grown three-dimensional human heart muscle that acts just like natural tissue. This advancement could be important in treating heart attack patients or in serving as a platform for testing new heart disease medicines.

The “heart patch” grown in the laboratory from human cells overcomes two major obstacles facing cellbased therapies – the patch conducts electricity at about the same speed as natural heart cells and it “squeezes” appropriately. Earlier attempts to create heart patches have largely been unable to overcome those obstacles.

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