Swabbable needle-free injection port valve system with neutral fluid displacement

Abstract From the Canadian patent

An improved needle-free intravenous injection port assembly is disclosed. Embodiments include a boot valve with a helical surface a boot valve and , septum which mate with mechanical interference a spike with a rough outer , surface coated with a lubricant a septum having a shoulder and a single continuous swabbable surface, a septum and a boot valve which are prepunctured with a solid core steel needle a septum with a frustroconical , extension and a combination single piece septum and boot valve. The injection port assembly provides neutral fluid displacement during coupling and uncoupling.