The invention discloses a flexible microneedle
drug delivery patch containing a separable
drug capsule suitable for transdermal delivery of multiple drugs. The microneedle
drug delivery patch has the advantages that
pain level is low,
infection risk is low and application is convenient. The microneedle
drug delivery patch comprises the separable and replaceable
drug capsule, a drug carrying end integrating a microneedle array with a microfluid flow passage network, a drug delivering end integrating the microneedle array with the microfluid flow passage network, and a sticky patch body allowing the microneedle
drug delivery patch to be attached to
skin, wherein the sticky patch body is made from a flexible
polymer and is high in curvature and
skin bonding property. In use, the
drug delivery patch is attached to a joint of a user, the drug carrying end and the
drug capsule of the drug delivery patch deform under the squeezing and stretching actions of the bent joint on the flexible microneedle drug delivery patch, so that a
syringe needle at the drug carrying end pierces into the
drug capsule and drugs are distributed to the drug delivering end through the microfluid flow passage network, and then drugs flow into the body through a passage formed on
skin by a microneedle at the drug delivering end to finish drug delivery.