. . . "For example, connector 16 may be made from synthetic fibers e.g. various grades of Nylon, polyethylene, polypropylene, polyester, Aramid, shape memory polymers, etc.; metals e.g. various grades of stainless steel, titanium, nickel-titanium alloys, cobalt-chromium alloys, tantalum etc.; natural fibers e.g. cotton, silk etc.; rubber materials e.g. various grades of silicone rubber, etc." .