DRUG DELIVERY DEVICE

摘要

A drug delivery device for delivering a drug to a subject includes a microneedle configured to facilitate delivery of the drug to the subject. The microneedle includes a tip portion and is moveable from an inactive position to an activated position. When the microneedle is moved to the activated position, the tip portion of the microneedle is configured to penetrate the skin of the subject. The drug delivery device includes a tissue support structure that includes a channel and an engagement element. The channel has a first end and a second end and is in axial alignment with the microneedle. At least the tip portion of the microneedle extends past the second end of the channel in the activated position. The engagement element is positioned adjacent to the channel, and the engagement element is configured to engage with the skin of the subject such that the engagement element resists downward deformation of the skin caused by the microneedle as the microneedle moves from the inactive position to the activated position.