Abstract: Various embodiments of the present invention are directed to a cranial fixation device for fixing a skull flap to a skull. The cranial fixation device may be securely fastened inside a craniotomy-created perimeter burr hole so that a top surface of the cranial fixation device is flush with an outer surface of the skull and the skull flap. In one embodiment of the present invention, the cranial fixation device includes a base, a stem, and a fan washer. The base may be positioned beneath the burr hole with the interconnected stem projecting through the burr hole. The fan washer includes a fan-washer interconnection aperture and a number of peripheral fan blades. The fan washer interconnects to the stem via the fan-washer interconnection aperture and may be slid down the stem and held at a desired position within the burr hole by the peripheral fan blades.

Abstract: A boat mooring device connectable into a suitable hole formed into the deck of a boat, the device including a deck plate, a trunnion connected and extending from the unexposed surface of the deck plate, and a spring loaded rope wheel rotatably mounted about a transverse axis at the other end of the trunnion. The device is structured so that rope stored on the rope wheel may be payed out from, or retracted unto, the rope wheel through an aperture in the deck plate as desired. Thereafter, pivotally closing a draw lever hinge connected atop the deck plate's exposed surface activates a spring loaded pawl which lockably engages into one of a plurality of notches formed into the periphery of the rope wheel. When the device is in its closed and locked position, a relatively smooth and uninterrupted surface with the boat deck is provided, the locked mooring rope extending out through the deck plate aperture a desired length for connection to a dock or the like.