Introducer drill

A curveable introducer drill configured to access a target treatment region within hard bone along a curved trajectory, the drill comprising:

• a drive shaft comprising a proximal rotational paddle, a distal drill tip, and an elongate shaft portion extending from the proximal rotational paddle to the distal drill tip,
• wherein the distal drill tip is pointed and comprises top and side cutting flutes;
• an outer tube surrounding the drive shaft, the outer tube comprising a proximal housing at its proximal end,
• wherein the proximal rotational paddle extends out of a proximal end of the proximal housing of the outer tube;
• wherein one side of a distal end portion of the outer tube comprises a segmented tube section comprised of tube segments and slits configured to facilitate controlled bending of the segmented tube section of the outer tube in a single known direction;
• and
• an actuator comprising a lever operably coupled to the drive shaft and a compression spring surrounding the drive shaft, positioned within the proximal housing and mechanically coupled to the proximal end of the outer tube,
• wherein actuation of the lever compresses the compression spring and applies tension to the drive shaft which, in turn, exerts a lateral force on the segmented tube section of the outer tube to cause the controlled bending of the segmented tube section in the single known direction.