Arteries (from Greek á¼ÏÏÎ·ÏÎ¯Î± (artÄria) , meaning windpipe, artery) are blood vessels that carry blood away from the heart.While most arteries carry oxygenated blood, there are two exceptions to this, the pulmonary and the umbilical arteries.ystemic arteries are the arteries (including the peripheral arteries), of the systemic circulation, which is the part of the cardiovascular system that carries oxygenated blood away from the heart, to the body arterioles, and then to the capillaries, where nutrients and gases are exchanged.
The Medical Devices Bureau of Health Canada recognizes four classes of medical devices based on the level of control necessary to assure the safety and effectiveness of the device. Class I devices present the lowest potential risk and do not require a licence.
A Class III device that fails to meet PMA requirements is considered to be adulterated under Section 501(f) of the act and cannot be marketed. Premarket approval requirements apply differently to preamendments devices, postamendments devices, and transitional Class III devices.anufacturers of Class III preamendments devices are not required to submit a PMA until 30 months after the promulgation of a final classification regulation or until 90 days after the publication of a final regulation requiring the submission of a PMA, whichever period is later.