Universal cap with pressure seal
A cap for connection to a medical connector comprises: a housing, a protrusion, a disinfection sponge, and a pressure seal. The protrusion includes an inner thread on an inner surface, the inner thread being sufficient to interlock with a mating feature of a female medical connector. The inner surface of the protrusion defines a second cavity. The protrusion includes an outer thread on an outer surface, the outer thread being sufficient to interlock with a mating feature of a male medical connector. The disinfection sponge is disposed on the second cavity. The pressure seal is attached to the housing and disposed adjacent to a surface of the disinfection sponge. The pressure seal can comprise a flexible insert attached to an interior surface of the top wall of the housing. The pressure seal can comprise a combination of: an elongate member and an insert that is slidably engaged with the elongate member.
1. A cap comprising:
a housing comprising:
a top wall;
an essentially cylindrical sidewall forming a first cavity; and
an open bottom formed by the cylindrical sidewall with an opening to the first cavity within the housing for receiving a hub of a medical connector; and
a protrusion extending from the housing and positioned within the first cavity, the protrusion having an inner surface and an outer surface, the inner surface of the protrusion defining a second cavity,
an inner thread on the inner surface of the protrusion, the inner thread being sufficient to interlock with a threaded fitting of a female medical connector, and
an outer thread on the outer surface of the protrusion, the outer thread being sufficient to interlock with a threaded fitting of a male medical connector;
a disinfection sponge configured within the second cavity; and
a pressure seal attached to the housing and disposed adjacent to a surface of the disinfection sponge.
2. The cap of claim 1 , wherein upon engagement of the cap with the medical connector, the disinfection sponge contacts a lumen edge of the medical connector and the pressure seal blocks a lumen of the medical connector thereby inhibiting disinfectant ingress into the lumen.
3. The cap of claim 2 , wherein when the lumen of the medical connector is open to the cap, the pressure seal enters the lumen to inhibit disinfectant ingress into the lumen.
4. The cap of claim 2 , wherein when the medical connector comprises a septum in the lumen, the pressure seal is positioned to avoid creating a fluid path through the septum.
5. The cap of claim 1 , wherein the disinfection sponge comprises a slotted end; an essentially cylindrical sponge sidewall defining a hollow and an open end; and a sponge end wall.
6. The cap of claim 5 , wherein the slotted end of the disinfection sponge comprises a slot that extends into opposing portions of the sponge sidewall.
7. The cap of claim 6 , wherein the slot extends along opposing portions of the sponge sidewall to the open end.
8. The cap of claim 5 , wherein the pressure seal is disposed in the hollow of the disinfection sponge.
9. The cap of claim 8 , wherein in an uncompressed state, the pressure seal is disposed entirely in the hollow.
10. The cap of claim 5 , wherein the sponge end wall is in direct contact with an interior surface of the top wall.
11. The cap of claim 1 , wherein the pressure seal comprises an elongate member and an insert, wherein:
the elongate member extends from an interior surface of the top wall of the housing; and
the insert comprises: a bottom wall, and an essentially cylindrical insert sidewall, the insert sidewall forming a chamber and a top edge of the insert sidewall defining an aperture;
the insert slidably engaging with the elongate member.
12. The cap of claim 11 , wherein an inside surface of the top edge slidably engages with the elongate member.
13. The cap of claim 11 , wherein the elongate member comprises a shoulder section, a slanted section, and one or more sliding sections.
14. The cap of claim 11 , wherein the insert comprises a plurality of prongs defined by portions of the insert sidewall and the top edge separated by slits.
15. The cap of claim 14 , wherein faces of the prongs slidably engage with the elongate member.
16. The cap of claim 11 , wherein an outside geometry of the insert sidewall comprises a tapered surface effective to complement an inner surface of a lumen of the medical connector.
17. The cap of claim 11 , wherein the insert comprises a polymeric material selected from the group consisting of polyethylene, polypropylene, thermoplastic elastomer (TPE), or combinations thereof.
18. The cap of claim 1 , wherein the pressure seal comprises a flexible insert attached to an interior surface of the top wall of the housing.
19. The cap of claim 18 , wherein the flexible insert comprises an elastomeric polymeric material.
20. The cap of claim 18 , wherein the flexible insert comprises a top wall, a bottom wall, and an essentially cylindrical and porous insert sidewall extending between the top wall and the bottom wall.
21. The cap of claim 18 , wherein the top wall of the flexible insert further comprises an extension that engages with an upper lip the protrusion.
22. The cap of claim 18 , wherein the flexible insert is breathable.
23. A cap comprising:
a housing comprising:
a top wall;
an essentially cylindrical sidewall forming a first cavity; and
an open bottom formed by the cylindrical sidewall with an opening to the first cavity within the housing for receiving a hub of a medical connector; and
a protrusion extending from the housing and positioned within the first cavity, the protrusion having an inner surface and an outer surface, the inner surface of the protrusion defining a second cavity,
an inner thread on the inner surface of the protrusion, the inner thread being sufficient to interlock with a mating feature of the medical connector comprising a female medical connector, and
an outer thread on the outer surface of the protrusion, the outer thread being sufficient to interlock with a mating feature of the medical connector comprising a male medical connector;
a disinfection sponge configured within the second cavity, the disinfection sponge comprising a slotted end; an essentially cylindrical sponge sidewall defining a hollow and an open end; and a sponge end wall; and
a pressure seal disposed in the hollow of the disinfection sponge, the pressure seal comprising:
an elongate member extending from an interior surface of the top wall of the housing; and
an insert comprising a bottom wall, and an essentially cylindrical insert sidewall, the insert sidewall forming a chamber and a top edge of the insert sidewall defining an aperture; the insert slidably engaging with the elongate member;
wherein upon engagement of the cap with the medical connector, the disinfection sponge contacts a lumen edge of the medical connector and the insert of the pressure seal blocks a lumen of the medical connector thereby inhibiting disinfectant ingress into the lumen.
24. The cap of claim 23 , wherein an inside surface of the top edge slidably engages with the elongate member.
25. The cap of claim 23 , wherein the elongate member comprises a shoulder section, a slanted section, and one or more sliding sections.
26. The cap of claim 23 , wherein the insert sidewall comprises a plurality of prongs defined by portions of the insert sidewall and the top edge separated by slits.
27. The cap of claim 26 , wherein faces of the prongs slidably engage with the elongate member.
28. The cap of claim 23 , wherein an outside geometry of the insert sidewall comprises a tapered surface effective to compliment an inner surface of a lumen of the medical connector.
29. The cap of claim 23 , wherein the insert comprises a polymeric material selected from the group consisting of polyethylene, polypropylene, thermoplastic elastomer (TPE), or combinations thereof.