초록 ▼

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 cont

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 pre-punctured, a septum with a frustroconical extension and a combination single piece septum and boot valve. The injection port assembly provides zero fluid displacement during coupling and uncoupling.

대표청구항 ▼

The invention claimed is: 1. An injection port assembly for coupling to and uncoupling from a first fluid pathway of a first connector and for coupling to a device provided with a second connector so as to provide a fluid connection between the first and second connectors, said injection port assem

The invention claimed is: 1. An injection port assembly for coupling to and uncoupling from a first fluid pathway of a first connector and for coupling to a device provided with a second connector so as to provide a fluid connection between the first and second connectors, said injection port assembly comprising: a body having a first mating structure adapted to mate with the first connector and a second mating structure coupled to said first mating structure and adapted to mate with the second connector, a resilient barrier substantially contained within said body and compressible from a first position in which fluid flow between said first mating structure and said second mating structure is blocked to a more compressed second position in which fluid flow between said first mating structure and said second mating structure is permitted, said resilient barrier having a generally helical outer surface pattern and a regular polygonal inner surface along at least a portion of its length. 2. An injection port assembly according to claim 1, further comprising: said resilient barrier includes a boot valve totally contained within said body and a septum at least mostly contained within said body. 3. An injection port assembly according to claim 2, further comprising: a spike coupled to said body and mounted within said resilient barrier. 4. An injection assembly according to claim 3, wherein: said spike has a roughened surface which is covered with a lubricant. 5. An injection port assembly according to claim 2, wherein; said boot valve and said septum are mated with mechanical interference. 6. An injection port assembly according to claim 1, wherein: said resilient barrier has a tip portion having a circular inner surface.