Abstract: Systems and methods for operating steerable sheath (SS). The methods comprise: causing an inner shaft (IS) to move in a first direction (FD) relative to an outer shaft (OS) having a first lumen (FL) in which IS is disposed; applying tension to a first pull wire (FPW) as IS moves in FD (FPW being partially disposed in a wall of IS and in FL of OS, FPW's first end being connected to IS and FPW's second end being connected to OS); allowing a deflectable region of IS's wall to transition from a straight state to a deflected state as tension is applied to FPW; causing IS to move in a second direction relative to OS; removing the tension being applied to FPW as IS moves in the second direction; and allowing the deflectable region of IS's wall to return to the straight state as tension is being removed from FPW.

Abstract: An automated cleaning device for dental drill bits, also called dental burrs. The cleaning device includes an enclosed cleaning compartment that houses two rotating, circular brushes. The dental burr is guided through a small opening in the cleaning compartment and forced in between the two rotating brushes. The dental burr is rotated while between the brushes and moved in and out of the brushes during the cleaning process. A switch attached to the opening in the cleaning compartment allows the brushes to start rotating when a dental burr is inserted into the compartment, and stop when the burr is removed. The device includes an electric motor that can be powered by batteries or by plugging into a traditional electrical outlet.