Surgical aiming device

摘要

A hinged pivoting guide for positioning a femoral tunnel in anterior cruciate ligament (ACL) reconstruction locates a drilling hole for placement that optimally penetrates a minimal depth of soft tissue (skin, muscle, etc.) yet directs drilling into a sufficiently rigid and structurally sound area of the femur. The hinged guide allows placement of an aimer point at a desired drilling exit location on the femur. The hinge is adapted to secure the aimer at a degree of rotation about an axis defined by the hinge rotation, such that the axis passes through the aimer point throughout rotation of the hinge while maintaining the aimer point in line with an insertion guide slideably movable through the aperture in the handle, the aperture defined by an insertion axis extending toward the aimer point such that the aimer point remains disposed at the intersection of the hinge axis and the insertion axis.

主权项

1. A surgical aiming device comprising:
a handle coupled to a proximate end of an elongated arm, the elongated arm further having a distal end; a hinge securing an aimer to the distal end for rotational communication around a hinge axis, the hinge secured by a hinge screw on the hinge axis, the hinge axis and an insertion axis intersecting for defining a placement point representative of an insertion point along the insertion axis for entry at a surgical site; the aimer having an elongated aimer tip extending linearly from the hinge along the hinge axis, and an aimer point, the aimer point at a distal end of the aimer tip from the hinge, the aimer tip coupled to the arm via the hinge at a proximate end, and the aimer point of the arm disposed at the placement point, the elongated arm having an arced section defining a circle and a straight section, the hinge securing the aimer to the straight section at a degree of rotation fixable by the hinge screw, the aimer point defined by the center of the defined circle; the insertion axis, hinge axis and aimer point intersecting at a center of a circle defined by the arced slot; and the hinge axis for independent movement of the handle relative to the aimer for disposing the handle around the surgical site for aligning the entry point of the surgical site with the exit location for a tunnel defined by the insertion axis.