Medical devices to augment or restore cerebral perfusion for prevention and treatment of stroke and for treating any form, focal or global, of cerebral ischemia, including intravascular devices, catheters and catheters with occlusion mechanisms or balloons, or with aspiration, infusion, angiography, for use in medical procedures

Welding apparatus and instruments including electric arc welders and power supplies therefor

Medical devices for treatment of stroke, namely, balloon catheters, partial aortic occlusion devices, cerebral blood flow reversal devices, coarctation devices, devices for removal of thromboembolic material from cerebral arteries, cerebral perfusion augmentation devices, cerebral cooling devices, shunts, devices for intrathecal spinal cooling, devices for intravascular spinal cooling, devices for retrograde venous perfusion, for use in medical procedures