Abstract: A device for treating tissue includes a catheter including an elongated body extending from a proximal end to a distal end and including a lumen extending therethrough, a distal tip connected to the distal end of the elongated body and including a first electrode and a second electrode extending thereabout, the first electrode extending to a distal opening of the lumen and a first needle extending longitudinally from a proximal end to a distal end, the first needle slidably received within the lumen of the catheter to be moved between a retracted bipolar configuration, in which the distal end of the needle is proximal the distal opening of the catheter, and an extended monopolar configuration, in which the distal end of the first needle extends distally past the distal opening of the catheter so that the first needle contacts the first electrode and is configured to cut tissue.

Abstract: A cathodic protection test station device has a terminal board integrally formed with a base plate. A removable housing locks onto the base plate and covers the terminal board and the base plate. A tab formed in the base plate extends into a recess formed in the housing defining a locking position. A tool may be inserted in an access slot formed in the housing to deflect the tab and remove the housing. A plurality of first wedge members are symmetrically disposed on a bottom surface of the base plate. The first wedge members have an inclined surface that slidably engages an inclined surface of a plurality of second wedge members. A bolt extends through the base plate and the first and second wedge members to a nut held in a non-rotating manner in the second wedge member. As the bolt rotates, the nut moves towards a head of the bolt and urges the first and second wedge members axially together.

Abstract: The steering of a human powered pontoon aquatic vehicle is improved by arranging the pontoons in three articulated sections. The forward and aft pontoon sections are rotated in reciprocal directions with the forward sections being rotated in the direction of the desired turn. The vehicle includes a support frame attached to the forward and aft pontoon sections upon which a seat is mounted. A central frame member attached to the central pontoon is shifted laterally with respect to the support frame in order to rotated the forward and aft pontoon sections. The forward and aft pontoon sections are connected to the central pontoon section by interlocking hinges which permits convenient disassembly of the vehicle for transportation.