Abstract: An adjustable clamping assembly is disclosed that includes first and second blocks each having a passageway through which support rods are inserted. The blocks may be rotated relative to each other. In one embodiment, each block has a slot extending from one face of each block to the passageway housing the support rod. The second block includes a frusto-conical seat for receiving a frusto-conical bearing member of the first block. A partially threaded stem extends from the first block coaxial with the bearing member and is inserted through an aperture in the second block. The stem is inserted within the tapped portion of a handle for adjusting the tightness of the assembly. As the handle is tightened the slots compress thereby securing the support rods in a fixed position within the passageways. In another embodiment, the first block includes a set screw instead of the slot for securing the support rod in a fixed position.

Abstract: A clamping assembly for connecting a support rod that supports medical accessories to a medical table, the clamping assembly having independently operable adjustments for releasably securing the assembly to the rail of the medical table; controlling the rotational positioning of the support rod; and regulating the longitudinal displacement of the support rod. The assembly includes a cam handle that regulates a camming surface. When the cam handle is rotated the camming surface translates a locking lug within an aperture of the assembly until the locking lug engages the rail of the medical table whereby the assembly is secured to the rail. The locking lug may be released from the rail by rotating the cam handle in the opposite direction. The rotational movement of the support rod relative to the housing of the assembly is controlled by the interaction of a toothed locking ring disposed upon a shaft extending from the housing and a set of circumferentially disposed teeth fixed upon the housing.