Patent ID: 7740461

Claim:
An electrospinning apparatus, comprising: a rotating shaft configured to spin around an axis thereof; at least one rotary supporting device including at least one outlet mounted thereon, the at least one supporting device being pivoted on an end of the rotating shaft, wherein the axis is tilted at a tilt angle in a range of about 0 to 45 degrees with respect to a vertical direction and is configured to revolve around the vertical direction whereby the rotating shaft, when in operation, simultaneously spins around the axis and revolves at the tilt angle around the vertical direction, a discharging electrode is disposed in and electrically connected to the outlet, and the outlet is connected to a duct by which a polymer solution is introduced; a receiving carrier; and a collector located below the rotary supporting device and having a surface to face the outlet; whereby when a voltage is applied to the discharging electrode for ejecting the polymer solution from the outlet, charged polymeric fibrils are formed and piled on the receiving carrier above the collector, while the receiving carrier simultaneously advances along a direction and the outlet moves along a non-linear track, thus forming a web on a surface of the receiving carrier.