Neurosurgical instruments; subcutaneous valves comprised of artificial materials for implantation; surgical apparatus and instruments; implants consisting of artificial materials; surgical implants comprising artificial material; implant retentive system; bone substitutes for surgical use; surgical devices, namely, surgical screws; surgical instruments, namely, surgical screw drivers; medical apparatus and instruments for use in surgery; bone implants composed of artificial materials; osseous...

Neurosurgical instruments; subcutaneous valves comprised of artificial materials for implantation; surgical apparatus and instruments; implants consisting of artificial materials; surgical implants comprising artificial material; implant retentive system; bone substitutes for surgical use; surgical devices, namely, surgical screws; surgical instruments, namely, surgical screw drivers; medical apparatus and instruments for use in surgery; bone implants composed of artificial materials; osseous...