The first patient fitted with an artificial heart made by the French company Carmat has died, the hospital that had performed the transplant in December said on Monday.
The 76-year-old man died on Sunday, 75 days after the operation.
The Georges Pompidou European Hospital in Paris said in a statement, adding that the cause of his death could not be known for sure at this stage.
When he was fitted with the device, the man was suffering from terminal heart failure, when the sick heart can no longer pump enough blood to sustain the body, and was said to have only a few weeks, or even days, to live.
Carmat’s bioprosthetic device is designed to replace the real heart for as much as five years, copying nature’s work using biological materials and sensors.
It aims to help the thousands of patients who die each year while awaiting a donor, and reducing the side-effects associated with transplants.
“Carmat wishes to pay tribute to the courage and the pioneering role of this patient and his family, as well as the medical team’s dedication,” a company spokeswoman said.