US 2003/0199812 A1 · Method and apparatus for the transdermal administration of a substance

Abstract

A transdermal delivery device includes a plurality of microneedles for injecting a substance such as a pharmaceutical agent into or below the stratum corneum of the skin. The device has housing formed from a top and bottom wall to define a chamber for containing a pharmaceutical agent. An inlet port is provided in the top wall of the housing for supplying the pharmaceutical agent to the chamber and directing the agent to the microneedles. The housing can have a Luer lock type fitting for coupling with a syringe having a Luer lock collar to inject the pharmaceutical agent into the housing. The housing can be divided into a plurality of chambers by an internal wall for supplying different agents simultaneously or sequentially to a patient. The microneedles have a length of about 5-250 microns and generally about 50-100 microns.

Claims30

Dependent claims

A delivery device for introducing a substance into the skin of a patient for delivering the substance to the patient, said device comprising:

a top wall having at least one opening;
a bottom wall coupled to said top wall and spaced from said top wall to define a reservoir therebetween for containing said substance, said bottom wall having a plurality of openings;
a coupling member attached to said top wall for supplying said substance through said openings in said top wall and into said reservoir;
and
a plurality of microneedles coupled to said outer surface of said bottom wall and being in communication with said openings in said bottom wall for directing said substance from said reservoir into the skin of a patient.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for the transdermal administration of a substance

Life of this patent

Method and apparatus for the transdermal administration of a substance

Life of this patent

Abstract

Claims30