An apparatus for piercing a skin surface, and methods for operating and
manufacturing such an apparatus. In one embodiment, the apparatus can
include a support housing having an engaging surface to engage the skin
surface. The support housing can include a first guide extending axially
away from the engaging surface and a second guide extending transverse to
the first guide. The apparatus can further include a probe coupled to a
guide member with the guide member sequentially engaged with the first
guide and the second guide to move in a first direction toward and away
from the engaging surface without simultaneously moving in a second
direction transverse to the first direction. Accordingly, a practitioner
can reposition the probe from one location to the other (for example, by
orbiting the probe relative to a central axis of the support body, or by
translating the probe linearly relative to the support body) without
moving the housing relative to the skin surface.