Patent ID: 7331117

Claim:
A calcaneal bisector for indicating a calcaneal bisection line of a heel of a subject, the bisector comprising a frame; a first plate mounted relative to the frame, wherein one side of the heel can be aligned to the first plate when the bisector is in use; a second plate movably mounted to the frame, wherein the second plate is sildable relative to the first plate for aligning to the other side of the heel; an indicator movably mounted relative to the frame for indicating the calcaneal bisection line; and a transmission mechanism disposed between the plates and the indicator, said transmission mechanism including a gear train of a ratio of approximately 2:1 and being arranged such that relative movements of the plates are transferred to cause movement of the indicator, wherein said first plate, second plate, indicator and transmission mechanism are arranged such that the distance traveled by the indicator is approximately half of the distance traveled by the second plate relative to the first plate; and upon placement of the heel of the subject between the first and second plates and the plates being moved towards each other so as to abut the heel of the patient, the indicator is moved by the transmission mechanism denotes to a position between the plates so as to ascertain the calcaneal bisection line.