According to an aspect of the invention, medical devices are provided, which have at least two superhydrophobic surface regions which engage one another when the medical device is deployed in vivo. According to one aspect of the present invention, at least one waveguide used in the optical apparatus is folded around according to a predefined curve to couple to other waveguides. The path transistors have corresponding gates for receiving the gate voltage from the first operational amplifier. The configurable column tool is configured with one of a plurality of tool attachments, one such attachment being clamping device. The structure is particularly well adapted to supporting vertical surface mount packages at a point spaced from the point where they connect to a printed circuit board or card. The third transmission line has a first end for providing a first output and a second end for coupling to a first potential.