A medical device is provided having reduced penetration force. The device includes a body having a central hollow channel and a piezoelectric transducer received within and secured to the body. The piezoelectric transducer has a hollow portion concentric with the central hollow channel. A tubular member is associated with and in communication with the piezoelectric transducer. The piezoelectric transducer is adapted for vibrating at a frequency to produce an oscillating displacement of the tubular member against or within surrounding tissue. The tubular member may be a hypodermic needle.
