A directionally limited illuminating balloon catheter includes a multi-lumen shaft having a distal end and a hollow balloon portion disposed at the distal end and inflated through the shaft, the balloon portion having a light source illuminating only a portion of the environment outside the balloon portion. These cooling devices are made from several extruded shaped section part elements. A first tool is sized and configured to be selectively inserted into the shaft and selectively removed from the shaft. The buffering plate is disposed oppositely to the shaft relative to the thrust plate and supports the thrust plate. The device emulates a disconnect, while it operates in the high-speed mode, by activating the pull-up resistor 480. The modules are removably attachable to the receivers by at least two non-latching, dry-break connectors.