Cranial anchoring and positioning system and method

A cranial anchor system configured to attach to an opening in a cranium, the system comprising:

• an anchor member that is elongated along a first axis, the anchor member including:
• a middle anchor portion defining a middle anchor recess that extends about the first axis;
• and
• a lower anchor portion extending from the middle anchor portion in a downward direction relative to the middle anchor portion along the first axis, the lower anchor portion including:
• a plurality of contact members that together define a lower anchor recess, each of the plurality of contact members having:
• a leg that extends from a bottom of the middle anchor portion, each leg having an angular bend defining an upper and a lower section of the leg,
• a rib mounted to the leg;
• an outer sheath that is elongated along a second axis and defines a first channel, the outer sheath including a joint configured to be at least partially disposed within the middle anchor recess and the lower anchor recess such that the joint is rotatable within the middle anchor recess and the lower anchor recess
• wherein the plurality of contact members are configured to be actuated between a first position and a second position, wherein in the first position a surface of the lower section of the leg extends substantially in the downward direction, and wherein in the second position the surface of the lower section of the leg extends at least partially in a radial direction, wherein the radial direction is substantially perpendicular to the downward direction;
• wherein the joint is configured to apply a force to the plurality of contact members to actuate the plurality of contact members between the first position and the second position, and wherein in the second position the rib applies pressure to a wall or edge of the opening to the cranium;
• a locking assembly configured to provide a force to the joint in the downward direction;
• and
• wherein the lower anchor portion includes at least one protrusion that extends from an inner surface, and wherein the locking assembly includes a slotted bottom, the slotted bottom having an outer surface that defines at least one slot, wherein each at least one slot is configured to receive each at least one protrusion within, and wherein the anchor member further includes an upper anchor portion extending from the middle anchor portion, the upper anchor portion defining a first threaded region, and wherein the locking assembly further includes a threaded top, the threaded top defines a second threaded region configured to mate with the first threaded region.