Patent ID: 8100912

Claim:
A surgical saw comprising: a housing having a distal end, said housing being formed so that there is an opening in the distal end and an interior wall that extends inwardly from the opening; a motor disposed in said housing; a head located adjacent the housing distal end opening and a neck integral with the head that extends into the housing distal end opening that is able to rotate within the housing distal end opening, the rotation of the neck resulting in the rotation of the head around an axis that extends from the housing distal end; a blade mount attached to said head to rotate with said head around the housing distal end, said blade mount having a retention assembly for removably holding a saw blade and being attached to said head to oscillate; a drive link that extends from said motor to said blade mount through said neck, said drive link configured to, upon actuation of said motor, oscillate said blade mount; a first ring of a plurality of bearings disposed around the interior wall of said housing so as to be located between the housing interior wall and said neck, said bearings able to move relative to both said housing and said neck and wherein said bearings extend circumferentially around said drive link; a retaining assembly located between said housing and said neck and around said drive link, said retaining assembly configured to urge said neck against the first ring of bearings and retain said neck in said housing wherein, when said neck is disposed against the first ring of bearings, said neck is able to rotate against the first ring of bearings and around the axis that extends from the housing distal end; and a lock assembly separate from said retaining assembly that extends between said housing and said neck, said lock assembly having a moveable lock pin that selectively engages in either one of said housing or said neck for releasably holding said neck in a fixed rotational position in the housing bore.