Medical devices for treatment of strokes, namely, devices for removal of thromboembolic material from arteries; catheters for stroke treatment and the detection, diagnosis, and treatment of strokes; intracranial access system guide sheath in the nature of catheters for placing or delivering catheters or other medical devices; medical devices, namely, aspiration pumps for treatment of vascular disease and associated luer connectors, fittings and adapters.;