This type of stroke is the most common. A blood clot â a clump of blood that sticks together â is usually to blame for ischemic strokes. They can also happen when arteries become narrow and clogged with plaque. Plaque is a mix of cholesterol and other fatty stuff that sticks to the walls of blood vessels.
Premarket Approval (PMA) A PMA submission is used to demonstrate to the FDA that a new or modified device is safe and effective. This standard is higher than is required for 510(k) submissions. Human use data from a formal clinical study is almost always required in addition to laboratory studies.
PMA is a Class A drug which means that it's illegal to have for yourself, give away or sell. Possession can get you up to seven years in prison and/or an unlimited fine. Supplying someone else, even your friends, can get you a life sentence and/or an unlimited fine.