Method for manufacturing microstructures having multiple...

Details Method for manufacturing microstructures having multiple... Method for manufacturing microstructures having multiple...

2003-02-24

2009-08-25

Huson, Monica A (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Making hole or aperture in article

C264S319000

Reexamination Certificate

active

07578954

ABSTRACT:
A method is provided for manufacturing microstructures of the type which contain a substrate and an array of protruding microelements with through-holes, which are used in penetrating layers of skin. The microelements are embossed or pressed into an initial substrate structure, which in some embodiments is formed from extruded polymeric material, and in some cases from two layers of polymer that are co-extruded. The through-holes are formed from filled through-cylinders of a second material that is removed after the embossing or pressing step; in other instances, the through-holes are left hollow during the embossing or pressing step.

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