Surgical Attachments for a Surgical Handpiece System

A surgical handpiece system for coupling to a surgical accessory tool, the surgical handpiece system comprising:

• a surgical handpiece including a motor for generating torque;
• and
• a surgical attachment configured to be removably attached to the surgical handpiece, the surgical attachment comprising,
• a housing having a first end portion for coupling to the surgical handpiece and a second end portion opposite the first end portion,
• a driving member at least partially disposed within the housing, the driving member being rotatable about an axis relative to the housing and configured to transfer torque received from the surgical handpiece to the surgical accessory tool, the driving member comprising a drive portion having a plurality of edges defining a bore at a distal end of the drive portion and a plurality of flats further defining the bore and extending proximally from each of the plurality of edges for engaging corresponding flats of the surgical accessory tool, and
• a lock assembly coupled to the driving member comprising,
• a retainer positioned proximal the plurality of edges of the drive portion of the driving member, the retainer moveable in a direction perpendicular to the axis,
• a collar slidably coupled to the driving member and moveable relative to the driving member from a first position to a second position,
• wherein the retainer is in an engaged position in which the retainer is disposed at a first distance from the axis when the collar is in the first position for coupling the surgical accessory tool to the driving member, and
• wherein the retainer is permitted to move to a released position in which the retainer is disposed at a second distance from the axis greater than the first distance when the collar is in the second position for decoupling the surgical accessory tool from the driving member.