The invention relates to a traction rod for bracing a crane jib, comprising a metallic tubular body and coupling elements which are connected to both ends thereof for an articulated connection of the traction rods among each other by means of bolts. The pawl and ratchet arrangement includes a transport pawl member that is longitudinally reciprocated by a rotary drive shaft via either an eccentric and crank arm drive arrangement, or a cam and follower drive arrangement. The first proximal capture portion is fixedly connected to the distal end of the apex release lumen and has fingers extending toward the first distal capture portion in a distal direction. The circuitry is capable of delivering signals produced by the imaging sensor for further processing and the components of the imager, except for the imaging surface of the sensor and the objective lens system, are encapsulated by an isolating material. A macromolecular matrix may comprise a hyaluronic acid component crosslinked to a collagen component. A new gradient field is obtained from which image reconstruction can progress using least mean squares.