The artificial heart, a self-contained unit implanted in the patient's chest, uses soft "biomaterials" and an array of sensors to mimic the contractions of the heart.
The patient received his artificial heart on December 18th, in a world first performed after the French government gave its green light to the operation in September.
The surgeons who carried out the ground-breaking operation and subsequently monitored the patient's progress were keen to "stress the significance of the initial findings drawn" from the experiment, a hospital statement said.
Nearly 100,000 people in Europe and the United States are in need of a heart transplant, according to Carmat.
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