Patent ID: 7232411

Claim:
A halo retractor comprising: a curvilinear fixed member comprising first and second ends, and a first male coupling projecting radially outward from the curvilinear fixed member and adapted to receive a female coupling portion of a retractor arm, the first male coupling comprising a first leg member and a first locking member, the first leg member extending over a length of the fixed member and the first leg member comprising an inner end connected to the fixed member, and a distal end connected to the first locking member; a curvilinear movable member comprising first and second ends, and a second male coupling projecting radially outward from the curvilinear movable member and adapted to receive a female coupling of a retractor arm, the second male coupling comprising a second leg member and a second locking member, the second leg member extending over a length of the movable member and the second leg member comprising an inner end connected to the movable member and a distal end connected to the second locking member; a first pin fixed in one of the first ends and extending into an other of the first ends to rotatably connect the first ends together; and a locking shaft extending through one of the second ends and threaded into an other of the second ends, the locking shaft operable to lock the fixed and movable members in a desired relative orientation.