A tool for use with a medication vial and a syringe includes a housing having a top side, a bottom side, and a surrounding edge. A slotted aperture is defined in the housing and including a flange shaped to engage a vial cap. A cylindrical aperture is defined in the housing and sized to permit placement...http://www.google.es/patents/US7556623?utm_source=gb-gplus-sharePatente US7556623 - Tool for use with a medication vial and/or a syringe
Tool for use with a medication vial and/or a syringe
