This exhibit presents the comparison between tissue plasminogen activator (tPA) and a thrombectomy procedure in removing blood clots. One way to remove blood clots is to inject tissue plasminogen activator (tPA) intravenously. The injected tPA then circulates the bloodstream in order to breakdown blood clots in stroke victims. Another way, is through a thrombectomy procedure in which a catheter is inserted into the femoral artery and advances through the aorta and carotid artery to the brain. Once the catheter reaches the blood clot, tissue plasminogen activator (tPA) is injected over the clot to soften and break-up the occlusion. The tPA during a thrombectomy procedure is directly applied to the clot without traveling through the bloodstream.
