Patent ID: 9085830
Filing Date: 2015-07-21
Classification: A61L,B29C,D01D

Abstract:
1. An electrospinning apparatus, comprising: (a) a reservoir configured to contain a spinning dope; (b) a nozzle adjacent to the reservoir through which the spinning dope is extruded or drawn; (c) a first electrode in contact with the nozzle; (d) a second electrode located a distance away from the first electrode; (e) a power supply connected to at least one of the first electrode and the second electrode, wherein the power supply is configured to generate an electrostatic field between the first electrode and the second electrode; and (f) a collection surface located between the first electrode and the second electrode, wherein the collection surface comprises a pattern of conductive material separated by dielectric material, and wherein the collection surface is isolated from the first electrode and the second electrode to interfere with, manipulate, or cause a change in the electrostatic field, wherein the conductive material is connected to a second power supply configured to generate a second electrostatic field to interfere with, manipulate, or cause a change in the electrostatic field generated between the first electrode and the second electrode.