Impacting type applicator for microneedle patch and leading end member

Abstract

To achieve stable administration of a medicine into a dermis by improving the operability of a device that inserts a microneedle into a skin. An impacting type applicator () for a microneedle patch is an applicator that applies a microneedle patch () to a skin includes a main body (), a spring expanding/compressing lever (), a resilient body (), a lock mechanism (), and a piercing switch (). The spring expanding/compressing lever () is movably attached to the main body (), and the microneedle patch () can be attached to a leading end of the spring expanding/compressing lever (). The resilient body () is a member that imparts a biasing force to the spring expanding/compressing lever (). The lock mechanism () is a mechanism that locks the spring expanding/compressing lever () in a state where the resilient body () exerts the biasing force on the main body (). The piercing switch () is a member that releases the engagement between the lock mechanism () and the spring expanding/compressing lever (). In addition, a biasing force imparting mechanism () further imparts a biasing force to the spring expanding/compressing lever () in a state where the spring expanding/compressing lever () is moved toward the leading end of the main body () and thereby presses the microneedle patch () against the skin.