Device and method for delivering or withdrawing a substance through the skin

摘要

An apparatus for delivering or withdrawing a fluid through at least one layer of the skin is provided. A device (10) includes a body (12) having a top face (20), a bottom face (18), a side edge (16) and at least one channel (22). The bottom face (18) includes a first surface area (28) and a second surface area (30) adjacent to and recessed at a first distance from the first surface area (28). The bottom face (18) further includes at least one raised protrusion (32) disposed on the second surface area (30). The protrusion (32) has a height from the first surface (28) greater than the first distance. At least one dermal-access member (14) is provided in the protrusion (32) and is in fluid communication with the channel (22) to deliver or withdraw the fluid. The dermal-access member (14) extends at least 1 mm from the protrusion (32). A mechanism drives the device (10) against the skin at a calculated speed of about 6 m/s to about 18 m/s.