A medical positioning apparatus for positioning and holding an object, including: a telescopic member; a support member for receiving the object; a base member securable to a base; a first and a second joint mechanism movably securing the telescopic member to the support member and the base member and each having at least two rotational degrees of freedom; a locking device operatively connected to the joint mechanisms and the telescopic member, the locking device operable between a locked position in which the configuration of the positioning apparatus is fixed, and a released position in which the configuration of the positioning apparatus may be changed, the locking device being passively biased in the locked position; and a lock activation device to unlock the locking device in order to change the configuration of the positioning apparatus.

A medical positioning apparatus including a telescopic member extending between first and second ends and having an adjustable length; a support member for receiving an object; a base member securable to a base; a first joint mechanism movably securing the support member to the first end of the telescopic member; a second joint mechanism including a housing with a top portion directly rotationally connected to the second end of the telescopic member, and at least one side portion directly rotationally connected to the base member and movably securing the base member to the second end of the telescopic member, a locking device operatively connected to the first and second joint mechanisms and the telescopic member, the locking device operable between a locked position and a released position; and a lock activation device to unlock the locking device biased in the locked position.