Catheters, microcatheters, guidewires, and embolic devices for neurovascular use; medical devices for treating cerebral vascular defects and disorders, namely, a neck bridge to span the neck of an aneurysm; microcoils and coils for endovascular or intravascular procedures; artificial medical or liquid embolization devices; detachable coils; neurovascular stents and vascular reconstruction surgical devices for arterial embolectomies; flow restoration micro shunts for endovascular intervention; medical devices for neurovascular thrombus; medical devices for treating ischemia; neurovascular balloons