Pen device for microneedle-based drug delivery

Delivery device microneedle comprising: a housing hub (10, 40) having a proximal end (30, 62) and a distal end (26, 60) with unasuperficie of skin contact, said proximal end member coupling (28, 48) paraacoplar removably said device to a supply reservoir containing a substance aadministrar to a patient, further comprising said housing hub member depth control (16, 52a, 52b, 52c) which extending from said contact surface with the skin, and at least one member tensioning (12,54) extending from said contact surface with the skin, wherein said limiting member deprofundidad and said at least one member of tensioning extending from said contact surface lapiel at separate points of the surface of contact with skin, a piercing member (22, 42) located at said proximal end (30, 62) of said housing (10,40) and having a sufficient length to pierce said supply tank and communicating the sustanciacon a microneedle (14, 50a, 50b, 50c); ydicha microneedle (14, 50a, 50b, 50c) is subject to said contact surface with the skin, desdeesta extends and has a length sufficient to penetrate the skin of a patient to a profundidadseleccionada to communicate said substance with said selected depth.