10 Droppers for medical purposes, namely, empty droppers for administering medication, platelet-rich plasma, serum eye drops and ophthalmic preparations and empty droppers for releasing blood, blood components, body fluids, body liquids or body substances; dropper bottles for medical purposes, namely, empty dropper bottles for administering medication, platelet-rich plasma, serum eye drops and ophthalmic preparations and empty bottle droppers for releasing blood, blood components, body fluids, body liquids or body substances; injectors for medical purposes, namely, blood injectors, blood components injectors, stem cells injectors, body fluids injectors, body liquids injectors, body substances injectors, injectors for medical fluids, injectors for platelet-rich plasma, injectors for serum eye drops or injectors for ophthalmic preparations, sold empty; single-dose containers for eye drops, sold empty; nebulizers for medical purposes; receptacles for applying medicines, namely, drug delivery systems; devices for the preparation of pharmaceuticals and blood components, namely, kits comprised of interconnected, closeable bottles, containers, tubes and ducts used for the preparation of platelet-rich plasma, and for the preparation of eye drops from blood components, such as serum and platelet-rich plasma