Medical and surgical instruments, namely, balloon implants of artificial materials, bladder implants of artificial materials, biodegradable or bioabsorbable implants of artificial materials, balloon catheters, bone tamps, orthopaedic cushioning implants of artificial materials, bone-to-bone sliding surface implants of artificial materials, bone-to-soft tissue sliding surface implants of artificial materials, mechanical cavity creators, tools used for filling bones and inflation syringes; surgical access devices, namely, needles, cannulae and trocars; medical and surgical instrument kits containing balloon implants of artificial materials; medical instruments for use in musculoskeletal such as spinal, shoulder, knee, articular joints, ligaments, tendons, rotator-cuff for orthopaedic surgery, namely, trocars, spacers, cannulas, inserters, mechanical levers, curettes, dilators, retractors, and separators; artificial surgical orthopaedic implants; and orthopaedic implant systems, namely, artificial inter-bone implants, intra-bone implants of artificial materials, bone implant positioners, and expanders