Patent ID: 6656147
Filing Date: 2003-12-02
Classification: A61B,A61M

Abstract:
A device for introducing a substance into the skin of a patient, said device comprising:a housing having a central opening; a planar member positioned in said central opening of said housing, said planar member having an inner surface and an outer surface, said outer surface having a plurality of microneedles extending therefrom, at least one opening passing through said planar member from said inner surface to said outer surface, and at least one cannula on said inner surface; a flexible, deformable cover coupled to said housing and overlying said central opening and being spaced from said planar member to define a cavity in said housing; and a bladder containing at least one substance and being positioned in said cavity of said housing between said planar member and said flexible cover, said bladder being piercable by said cannula and collapsible by pressing and deforming said flexible cover to dispense said substance through said opening to said microneedles.