Medical apparatus for introducing pharmaceutical preparations into the human body; Medical device for accessing subcutaneous structures of the human body for the purpose of administering medical treatment; Medical devices and apparatus, namely, ultrasound imaging apparatus, scanners and needle guides, and parts and fittings therefor; Medical devices for placing and securing catheters; Medical devices to treat intravascular sites; Medical apparatus, namely, infusion and injection devices for administering drugs; Medical imaging apparatus for the enhanced visualization of veins allowing for successful intravenous access; Medical imaging devices for the enhanced visualization of veins allowing for successful intravenous access; Attachments for medical injection devices to aid in controlling the depth of the injections; Attachments for medical injection devices to aid in holding injection needles perpendicular to the skin; Attachments for medical injection devices to aid in stabilizing flow during injection of pharmaceuticals