Apparatus for blood tests (for medical use); Apparatus for controlling medical infusions; Apparatus for medical and therapeutic stimulation of the body; Apparatus for medical purposes; Apparatus for medical use; Injection sleeves for medical use; Injection syringes for medical purposes; Injectors for medical purposes; Intra-vascular apparatus for medical use; Medical apparatus for use in dialysis; Medical hand tools; Medical instruments; Medical syringe needles; Hypodermic injection apparatus; Hypodermic injection apparatus for use in injecting substances; Injection apparatus for use with human growth hormones; Medicinal injection syringes; Devices for applying medicated compositions through the skin; Devices for applying pharmaceutical compositions to the skin; Devices for use in the administration of medicines; Devices for use in the administration of pharmaceuticals; Drug delivery devices