Surgical procedures, kits and implants for alleviating human incontinence, and particularly providing improved methods and apparatus to secure a urethral sling to pubic bone to support the urethra and alleviate incontinence are disclosed. The bars are provided with ribs on an external surface thereof. The screening arrangement comprises at least on rotatable connection which permits a displacement of the screening body to a position in which it forms an angle with the roof surface and is positioned within the end wall of the top casing. The safety device includes a wire rope raisinglowering means, two or more wire ropes, a wire rope holding means, and a wire rope control means. An illustrative embodiment of the retractable overhead charging cord dispenser includes an arm assembly, a cord guide arm carried by the arm assembly, a cord storage device provided in the arm assembly and a retractable charging cord extendable from the cord storage device and extending through and protruding from the cord guide arm.