Separating device

A bone separating device for bone surgery for manually making bone separations, said separating device having a separating blade of flat shape and having positioned along a portion of its periphery a row of cutting teeth intended to perform the actual separating operation;

• a turnable member operably positioned in said device and oscillating means operably connected to said turnable member for oscillating said turnable member about its axis of rotation during operation of the separating device, said separating blade being operatively fixed to said turnable member with its side faces positioned perpendicular to the said axis of rotation of said turnable member to cause during the rotation of the turnable member the cutting teeth on the blade to oscillate in a path parallel to side faces of the blade, said separating blade detachably held at a fixing location by a blade retaining means which is attached to a front side of a turnable member that oscillates about its longitudinal axis and a rotatable eccentric means which is operatively coupled to said turnable member to cause said turnable member to execute oscillating movements when said eccentric means is rotated, said turnable member provided with a bore, which at the end opposite the separating blade is connectable by a conduit means to a source of cooling medium, and from which bore at its end at the location of the separating blade circulation channels are provided in the blade retaining means for conveying the cooling medium in contact with the separating blade.