Patent ID: 6921226

Claim:
An adjustable support apparatus comprising: a support member; a pivotally adjustable member engaged with the support member; an elongated member supported on the adjustable member and adapted to interact with an instrument, the elongated member comprising a locking portion; a fastening member engaged with the adjustable member for securing the elongated member relative to the adjustable member; a means for locking the elongated member; and an engaging section that interacts with the means for locking the elongated member; wherein the fastening member is arranged around and rotationally decoupled from the elongated member; wherein the means for locking the elongated member constrains the rotational movement of the elongated member relative to the rotational movement of the adjustable member; wherein the locking portion of the elongated member interacts with the means for locking the elongated member; and wherein the means for locking the elongated member is a set screw having a central portion complementary in shape to the shape of the locking portion of the elongated member.