Patent ID: 7572258

Claim:
A mitre instrument for use during surgery when cutting bone in connection with shortening or extension and/or correcting of the angle of the bone, comprising: a body including an upper surface, a lower surface, an edge forming an outer periphery of said body, a common opening located substantially near a center of said body, at least one hole for a guide pin for fixation of the instrument, and at least two slots or scores extending from said edge toward said common opening for receiving a cutting tool, wherein on said lower surface of said body, each of said slots begins at said common opening and angularly extends from said common opening to said edge of said body so as to form wedge-shaped portions of said body between said slots, and wherein on said upper surface, each of said slots extends from said edge of said body to a point located a spaced distance from said common opening such that each of said slots connects said lower surface to said upper surface of said body at said edge but does not connect said lower surface to said upper surface in an area between said common opening and said point located a spaced distance from said common opening.