On-line retail store services, mail order catalog services, online catalog services, wholesale store services, online wholesale store services and wholesale distributorships, all featuring medical devices, namely, biological regeneration or repair artificial tissue, components of artificial biological tissue, artificial bone, material of artificial bone that include material of cotton wool like structure, bone defect filling material, implants of artificial bone, and artificial dental material, medical devices, namely, biological regeneration or repair, artificial tissue, components of artificial biological tissue, artificial bone, material of artificial bone that include materials of cotton wool like structure or hydroxyapatite, bone defect filling material, implants of artificial bone, and artificial dental material, and drug delivery systems, namely, biodegradable fibers forming a cotton wool like structure containing medical treatments