Various implementations include an anchoring device including a tubular body and at least one anchor. The at least one anchor extends along an opening between a first axial end and a second axial end of the opening. The at least one anchor includes a shape memory material. The at least one anchor is movable from a retracted position to an extended position by either increasing the temperature of the anchor above an austenite finishing temperature or decreasing the temperature of the anchor below a martensite finishing temperature. The anchor has a smaller radius of curvature in a plane that includes the longitudinal axis in the extended position than in the retracted position. When used as a coupler for medical implants, the device can be easily removed and reimplanted during re-surgery without damaging the bone of a patient by increasing or decreasing the temperature of the shape memory material anchors.