Abstract: The present invention is directed to a method of treating acute ischemic stroke in a human comprising administering one of more low doses of DC009, wherein the dose is about 0.01-0.075 mg/kg/dose. The low dose administration is safe and effective in treating acute ischemic stroke in a human subject.

Abstract: A vacuum suction wall-climbing robot including a body, a vacuum pump and at least four leg mechanisms is disclosed. Each leg mechanism includes a foot unit and a limb unit connecting the foot unit and the body. The foot unit includes a plurality of suction sets connected to the vacuum pump through a pipe. Each suction set includes a sucker able to create a vacuum state within a contact area through the operation of the vacuum pump, and a sheet valve arranged between the pipe and the sucker, which automatically closes the connection between the pipe and the sucker when the vacuum state between the sucker and the contact area becomes a non-vacuum state.