The 24-year-old Bolton star has an Implantable Cardioverter Defibrillator (ICD) inseted under his collar bone.
The device works by releasing an electric charge if it detects a heart malfunction and apparently will not impair his ability to play football again.
Muamba joined several other European players who are known to also wear ICDs on the pitch.
He is set to leave a specialist hospital today after more than a month of treatment.
The fateful footballer shocked fans when his heart stopped beating independently for 78 minutes during a game at Spurs’ White Hart Lane.
But the former England Under-21 midfielder is expected today to take another step in his incredible recovery by leaving the hospital where he has been treated since he collapsed.
He will be moved 200 miles from the London Chest Hospital for continuing treatment at the Alexandra Hospital in Cheadle, Greater Manchester, much closer to his family home.