Artificial sponges for medical purposes; dental implants; implants comprised of artifical materials for dental purposes; medical bone graft substitutes; surgical implants for use in bone grafting; implant materials [prosthesis] for use in dental surgery; medical implants made of artificial materials; support bandages; applicators in the nature of sponges [for medical use]; medical apparatus and instruments.

Plastic conical shaped device to be loaded into a borehole above the explosive material for the purpose of confining the explosive energy upon detonation