Patent ID: 9545507
Date: 2017-01-17
CPC Classifications: A61B,A61K,A61M,A61P,B29C,B29K,B29L,Y10T

Claim:
1. An injection molded microneedle array comprising: a substrate; a plurality of microneedles extending from a surface of the substrate; a plurality of nanostructures and microstructures on a surface and projecting directly outward therefrom of at least one of the microneedles in a predetermined pattern, wherein at least a portion of the microstructures have a cross-sectional dimension of greater than about 500 nanometers and less than about 10 micrometers and a height of from about 20 nanometers to about 1 micrometer, and, wherein at least a portion of the nanostructures have a cross-sectional dimension of less than about 500 nanometers and greater than about 5 nanometers, wherein at least one of the microneedies defines a channel; and wherein the substrate, the pluraiity of microneedles and the plurality of nanostructures are all portions of an injection molded construct.