Doctors are now implanting the devices at a rate equivalent to about 120,000 patients each year, he said.
If the trial is successful, your doctor can implant a more permanent stimulator.
Two days later, the doctor implanted five embryos in Mary's uterus.
An estimated one in 500 Americans has a permanent pacemaker, and doctors implant 120,000 new ones each year.
Doctors implanted devices known as stent-grafts in each of his legs.
Doctors would then implant the egg in a surrogate mother's womb.
The doctors implanted four of the embryos into the woman's uterus and froze the rest for future use.
In the study, doctors implanted the device in 235 severely depressed people.
Doctors generally do not implant more than four embryos - extras are frozen and stored for later use.
The doctor surgically implants the defibrillator under the skin, usually below the left collarbone.