WO2020112749A1

WO2020112749A1 - Dual ended disinfecting cap for stopcock valves

Info

Publication number: WO2020112749A1
Application number: PCT/US2019/063217
Authority: WO
Inventors: Sean Coyle
Original assignee: Becton Dickinson and Co
Current assignee: Becton Dickinson and Co
Priority date: 2018-11-30
Filing date: 2019-11-26
Publication date: 2020-06-04
Anticipated expiration: 2021-05-30
Also published as: CN113195037A; SG11202105368SA; EP3886971A1; KR20210099039A; JP2022510289A; AU2019388896A1; MX2021006316A; KR20260037102A; AU2025205228A1; CA3120958A1; EP3886971A4; BR112021010315A2; US12440659B2; US20220023609A1

Abstract

A universal cap for both male and female connections includes configuration of structural elements allowing the cap to be opened at either end. Optionally, an inner wall feature allows each end of a cap structure to function as its own cap, or perform a separate capping function. For example, should one end of the cap structure be in use, and the other end of the cap structure be open to air, the end of the cap structure in use, or performing the capping function, is not compromised. Optionally, dual ended cap structure includes features designed to maintain the pressure in a closed system, for both the male and female luer lock ends.

Description

Dual Ended Disinfecting Cap for Stopcock Valves

Cross-Reference to Related Applications

[0001] This application claim priority under 35 USC §119(e) from U.S. Provisional Patent

Application No. 62/773,568 filed on November 30, 2018, tire contents of which (including all attachments filed therewith) are hereby incorporated by reference in their entirety.

Technical Field

[0002] Generally, exemplary embodiments of the present disclosure relate to the fields of threaded fittings, including medical caps and medical disinfection caps, and in particular caps and/or disinfection caps for uses with stopcocks, such as a valve or turning plug that controls the flow of fluid from a container through a tube such as IV tubing.

Backeround

[0003] In the example of medical applications, various conventional caps for closing off a needleless connector while not in use have been known for some time. In order to decrease

Catheter-related bloodstream infection (CRBSI) cases disinfection caps were originally disclosed in

U.S. Patent Publication No. 2007/011233 which issued as U.S. Patent No. 8,740,864 (the entire disclosures of both of which are incorporated herein by reference), and introduced on the market.

Disinfection caps such as those disclosed in the U.S. Patent No. 8,740,864 are illustrated in Figures

1 A and IB herein, where cap 1 includes a disinfecting pad 2 and a lid 3, and cap 4 includes a disinfecting pad 5 and lid 7, as well as threads 6 on its inner circumference 8 to interlock with needleless connector hub. On the other hand, other conventional caps may have similar features but exclude the disinfecting pad. Further improved designs for disinfection caps are disclosed in related

U.S. Patent Applications Nos. 15/408,278 and 15/408,187, both filed on January 17, 2017 (the entire disclosures of both of which are incorporated herein by reference). Yet further modifications to cap designs adding further safety considerations are disclosed in related U.S. Patent Applications

Nos. 62/488,266, filed on April 21, 2017, 62/523,506, filed June 22, 2017, and 62/623,858 filed

January 30, 2018 (the entire disclosures of which are incorporated herein by reference).

[0004] Currently, there are male disinfecting cap devices for disinfecting IS0594-2 type of female threaded fluid luer connectors and there are female disinfecting cap devices for disinfecting

IS0594-2 type of male threaded fluid luer connectors. Also, as illustrated in Figures 2A and 2B, there are known caps 9, or male tip disinfecting caps, having threads 11 which do not completely encircle a tip hub. Such caps with partial threads can be prone to leakage, for example in stopcock applications when pressure is applied.

[0005] Accordingly, there is not a singular universal cap, or disinfecting cap, device designed to be selectively opened at either end, or both ends, allowing it to interface with either a male or female type of connectors, or to be a universal cap for both male and female stopcock connections, and where a male side of the cap can prevent leakage and better maintain pressure in a stopcock system.

Summary

[0006] The matters exemplified in this description are provided to assist in a comprehensive understanding of exemplary embodiments of the disclosure. Accordingly, those of ordinary' skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0007] As would be readily appreciated by skilled artisans in the relevant art, while descriptive terms such as“lock”,“hole”,‘tip”,“hub”,“thread”,“sponge”,“protrusion”,“tab”,

“slope”,“wall”,“top”,“side”,“bottom,”“upper,”“low'er,”“stopcock” and others are used throughout this specification to facilitate understanding, it is not intended to limit any components that can be used in combinations or individually to implement various aspects of the embodiments of the present disclosure.

[0008] Exemplary embodiments of the present disclosure provide dual ended disinfecting cap, which can be used with open female luer and male connections found on stopcock valves.

[0009] In an exemplary implementation of the embodiments of present disclosure, a cap, a connector cap, or a disinfecting cap includes integrated thread, or threads, and other features in any and all combinations allowing it to interface with both male and female threaded fittings.

[0010] According to exemplary implementations of tire embodiments of the present disclosure, configuration of structural elements making up the cap allow' the cap to be opened at either end, to allow the cap to be a universal cap for both male and female stopcock connections.

[0011] Optionally, according to yet further exemplary implementations of the embodiments of the present disclosure, an inner wall feature allows each end of a cap structure to function as its own cap, or perform a separate capping function. For example, should one end of the cap structure be in use, and the other end of the cap structure be open to air, the end of the cap structure in use, or performing the coping function, will not be compromised.

[0012] Optionally, according to still further exemplary implementations of the embodiments of the present disclosure, a dual ended cap structure includes features designed to maintain the pressure in a closed system, for both the male and female luer lock ends. For example, in an end of a cap structure configured for capping a female luer lock end, a male mating feature can be provided designed to maintain pressure in a stopcock closed system. In yet further example, another end of a cap structure configured for capping a male luer lock end can be provided with threads designed to maintain pressure and provide a seal on a luer lock syringe. Any combination of such exemplary features can be provided on one or both ends of a dual ended cap structure of the present disclosure.

[0013] Optionally, according to still further exemplary implementations of the embodiments of the present disclosure, a dual ended cap structure includes features designed to disinfect a stopcock from bacteria for example by providing a cleaning member or a cleaning solution in one or both ends of the cap structure.

[0014] Optionally, according to still further exemplary implementations of the embodiments of the present disclosure, an end of a cap structure configured for capping a male luer lock end can be provided with a wall around the luer connection.

[0015] Optionally, according to still further exemplary implementations of the embodiments of the present disclosure, an end of a cap structure configured for capping a male luer lock end can be provided with threads such as those of a tip cap design of Becton, Dickinson and Company

PosiFlush™ syringes, which are designed for example to maintain pressure to keep fluid from evaporating during autoclave of the product. [0016] Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views, embodiments of the present disclosure are described as follows.

[0017] Figures 1 A and IB are cross sectional views of conventional caps for needleless connectors.

[0018] Figures 2A and 2B are side-isometric and end views, respectively, of conventional male tip caps.

[0019] Figure 3 illustrates an isometric or perspective view of a dual cap structure according to exemplary embodiments of the disclosure

[0020] Figure 4 illustrates an isometric split, or cross sectional, view of a cap according to exemplary embodiments of the disclosure.

[0021] Figure 5A, 5B and 5C diagrammatically show a cross sectional view' of a cap shown in Figures 3 A and 3B assembled, according to exemplary embodiments of the disclosure, to a male component and/or a female component.

[0022] Figure 6 illustrates isometric views of a dual cap structure including covers, such as a peel strip, according to exemplary embodiments of the disclosure.

[0023] Figure 7 diagrammatically shows a cross sectional view of a dual cap structure including cleaning or disinfection components according to exemplary implementations of embodiments of the disclosure. Detailed Descriotion of the Exemolarv Embodiments

[0024] This matters exemplified in this description are provided to assist with a comprehensive understanding of exemplary embodiments with reference to the accompanying drawing figures. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the exemplary embodiments described herein can be made within the scope of appended claims without departing from their full scope and equivalents. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness. Likewise, certain naming conventions, labels and terms as used in the context of the present disclosure are non- limiting and provided only for illustrative purposes to facilitate understanding of exemplary implementations of the exemplary embodiments.

[0025] Referring to Figures 3 through 7, according to exemplary embodiments of the present disclosure a dual cap structure 10 comprises a housing 20 including a male luer capping portion 200, which can receive, accommodate and/or engage a male needleless connector 80, and a female luer capping portion 300, which can receive, accommodate and/or engage a female needleless connector 70, and a wall 22, such as an interior separation wall, disposed with the housing 20 between, and/or to separate, portions 200 and 300.

[0026] Referring to Figures 4, 5A and 5B, in an exemplary implementation, a male luer capping portion 200 comprises an inner surface 205, a sidewall portion 206 (which can be essentially cylindrical) of housing 20 with an inner surface 201, and an opening 207 into a cavity

208. Opening 207 is disposed at an end 203 of housing 20. Inner surface 205 of wall 22 can form a bottom of cavity 208. Disposed within cavity 208 is a protrusion 210 (which can be essentially cylindrical, extending from inner surface 205 and coaxial with sidewall 206) having an outer surface 211 configured for mating with male luer end 80. Protrusion 210 surrounds and/or defines an inner portion 302 of cavity 208, and defines an outer portion 304 and of cavity 208. Inner portion 302 comprises an opening 217 for receiving or accommodating a tip or hub 82 of a male needleless connector 80 in the inner portion 302. For example, protrusion 210 comprises a wall 216 having thread or protrusion 236 on its outer surface 211 for engaging an inner thread or protrusion

86 on collar 84 of connector 80.

[002h Referring to Figures 4, 5A and 5C, in an exemplary implementation, a female luer capping portion 300 comprises an inner surface 25, a sidewall portion 26 (which can be essentially cylindrical) of housing 20 with an inner surface 21, and an opening 27 into a cavity 28. Opening 27 is disposed at an end 303 of housing 20. Inner surface 25 of wall 22 can form a top of cavity 28.

Disposed within cavity 28 is a protrusion 310 (which can be essentially cylindrical, or frustoconical, extending from inner surface 25 and coaxial with sidewall 26) having an outer surface 311 configured for extending into, or mating with, female open luer end 76. Sidewall portion 26 comprises an inner thread or protrusion 36 on its inner surface 21 for engaging an outer thread or protrusion 74 of female connector 70.

[0028] Referring to Figures 4, 5A, 5B, 5C, and 6, in an exemplary implementation, a peel sealing film 610 can be provided to seal the opening 27 prior to use of cap 10, for example, by attachment to a surface of a rim 29 of an open end 303 of female luer capping portion 300, as described for example in the above-referenced prior applications. In yet another exemplary implementation, a peel sealing film 620 can be provided to seal the opening 217 of inner portion

302 prior to use of cap 10, for example, by attachment to a surface of a rim 219 of protrusion 210 of male luer capping portion 200. In yet further exemplary implementation, a peel sealing film (not shown) can be provided to seal the opening 207 prior to use of cap 10, for example, by attachment to a surface of a rim 229 of side wall 206 of male luer capping portion 200 in the same manner as attachment of sealing film 610 for sealing the opening 27.

[0029] In yet another exemplary implementation, a disinfecting member or members, such as an IPA soaked sponge 50 and/or sponge 52 and/or sponge 45, can be provided within cavity 28, for example in the proximity of inner surface 25 of wall 22, and/or within cavity 208, for example in the proximity of inner surface 205 with portion 302 and/or within portion 304, as illustrated in

Figure 7, for example as described in the above-referenced prior applications.

[0030] In yet another exemplary implementation, protrusion 210 can extend essentially from inner surface 205 of wall 22 toward open end 203 housing 20.

[0031] In still further exemplary implementation, protrusion 210 can extend essentially parallel to sidewall 206.

[0032] Referring to Figures 3 through 7, according to exemplary embodiments of the disclosure, cap 10 can receive a tip or hub 72 of a female needleless connector 70, for example after a peel sealing film 610 sealing cavity 28 is removed or when the peel sealing film 610 is pierced. within cavity 28 and secure (for example, threadedly) the tip of needleless connector 70 within cavity 28. One or more threads 36 can be sufficient to interlock with a mating feature 74 (such as one or more protrusions, lugs and/or thread) of a hub or tip 72 of needleless connector 70, as described for example in related U.S. Patent Applications Nos. 15/408,278 and 15/408,187, both filed on January 17, 2017

[0033] Referring further to Figures 3 through 7, according to exemplary embodiments of the disclosure, cap 10 can receive a tip or hub 82 of a male needleless connector 80, for example after a peel sealing film sealing cavity 208, or peel 620 sealing the opening 217 of inner portion 302, is removed or when the peel sealing film is pierced, within inner portion 302 of cavity 208 and secure the tip or hub 82 of needleless connector 80 within the inner portion 302 of cavity 28, by securing

(for example, threadedly) collar 84 of connector 80 within outer portion 34 of cavity 28.

[0034] In an exemplary implementation, threads 236 of male luer capping portion 200 can comprise female threads using a PosiFlush™ tip cap design for a male luer end, sufficient to interlock with a mating feature 86 of collar 84 of a male luer end, or connector, 80 to form a leak proof seal of cap 10 with connector 80. Such an exemplary implementation is applicable where connector 80 comprises a stopcock design to facilitate maintenance of pressure in an IV system when capped by cap 10.

[0035] In yet another exemplary implementation, side wall 206 of male luer capping portion

200 surrounds the exterior of collar 84 of connector 80 to protect the connection for example from bacteria by preventing direct skin to device contact where the cap 10 interacts with the luer lock 80.

[0036] According to yet further exemplary implementations of the embodiments of the disclosure, in a cap 10 described above with reference to Figures 3 through 7, at least a female luer capping portion 300 can be implements with various venting features and designs described in US patent applications Nos. U.S. Patent Applications Nos. 15/408,278 and 15/408,187, both filed on

January 17, 2017, for example by modifying shape and/or size and/or configuration (such as pitch, spacing, thickness, and/or other structural features) of thread 36 and/or configuration of surface 21.

[0037] While the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the present disclosure. For example, a disinfection sponge can comprise any suitable disinfecting or other application-specific substance, and can be made of any suitable material. Also, the inner and/or the outer housing of the cap can be single shot molded, or made by other suitable process. Furthermore, any of the features or elements of any exemplary

implementations of the embodiments of the present disclosure as describes above and illustrated in the drawing figures can be implemented individually or in any combination(s) as would be readily appreciated by skilled artisans without departing from the spirit and scope of the embodiments of the present disclosure.

[0038] In addition, the included drawing figures further describe non-limiting examples of implementations of certain exemplary embodiments of the present disclosure and aid in the description of technology associated therewith. Any specific or relative dimensions or measurements provided in the drawings other as noted above are exemplary and not intended to limit the scope or content of the inventive design or methodology as understood by artisans skilled in the relevant field of disclosure.

[0039] Other objects, advantages and salient features of the disclosure will become apparent to those skilled in the art from the details provided, which, taken in conjunction with the annexed drawing figures, disclose exemplary embodiments of the disclosure.

Claims

I claim:

1. A cap comprising: an housing comprising a sidewall, an open first end formed by said sidewall with a first opening to a first cavity within said housing for receiving a hub of a male needleless connector, an open second end formed opposite said first end by said sidewall with a second opening to a second cavity within said housing for receiving a hub of a female needleless connector, and a separation wall disposed within said sidewall, said separation wall comprising a first surface essentially perpendicular to a first portion of said sidewall extending from said separation wall to said first open end of said housing, said first surface forming a closed first end of said first cavity, and a second surface opposite said first surface and essentially perpendicular to a second portion of said sidewall extending from said separation wall to said second open end of said housing, said second surface forming a closed second end of said second cavity; and a protrusion within said first cavity, said protrusion comprising an inner surface defining an inner portion of said first cavity, an outer surface defining an outer portion of said first cavity, and an outer thread on said outer surface, said outer thread being sufficient to interlock with a mating feature of said male needleless connector forming a leak proof seal.

2. The cap of claim 1 further comprising: an inner thread on an inner surface of said sidewall between said separation wall and said open second end, wherein: when said hub of said female needleless connector is received within said second cavity. said hub of said female needleless connector is secured within said second cavity by interlocking at least a portion of said inner thread with a mating feature on said hub of said female needleless connector.

3. The cap of claim 1 or 2 wherein: when said hub of said male needleless connector is received within said first cavity, said hub of said male needleless connector is secured within said inner portion of said first cavity by interlocking at least a portion of said outer thread of said protrusion with said mating feature disposed on a collar of said male needleless connector when said collar is received within said outer portion of said first cavity.

4. The cap of any one of claims 1, 2, or 3 wherein: said mating feature of said male needleless connector comprised a thread, and said protrusion comprises a full thread corresponding to said thread of said mating feature of said male needleless connector.

5. The cap of any one of claims 1 , 2, 3 or 4 wherein: said protrusion extends essentially from said first surface of said separation wall toward said open first end of said housing.

6. The cap of any one of claims 1, 2, 3, 4 or 5 wherein: said protrusion extends essentially parallel to said cylindrical sidewall.

7. The cap of any one of claims 1, 2, 3, 5 or 6 further comprising: a second protrusion within said second cavity. wherein: when said hub of said female needleless connector is received within said second cavity. said second protrusion interfaces with an open end of said hub of said female needleless connector.

8. The cap of any one of claims 1, 2, 3, 5, 6 or 7 wherein: said second protrusion extends essentially from said second surface of said separation wall toward said open second end of said housing.

9. The cap of any one of claims 1, 2, 3, 5, 6, 7 or 8 wherein: said housing comprises an essentially cylindrical outer surface formed by an exterior of said cylindrical sidewall.

10. The cap of any one of claims 1, 2, 3, 4, 5, 6, 7, 8, or 9 further comprising: at least one disinfection sponge configured within at least one of said inner portion of said first cavity, said outer portion of said first cavity, and said second cavity; and at least one removable cover sealing at least one of an opening to said inner portion of said first cavity, said open first end of said housing, and said open second end of said housing.

11. The cap of any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 wherein: said sidewall is essentially cylindrical.

12. A capping method including interfacing with one or more connectors, wherein a cap includes a housing comprising a sidewall, an open first end formed by said sidewall with a first opening to a first cavity within said housing for receiving a hub of a male needleless connector, an open second end formed opposite said first end by said sidewall with a second opening to a second cavity within said housing for receiving a hub of a female needleless connector, and a separation wall disposed within said sidewall, said separation wall comprising a first surface essentially perpendicular to a first portion of said sidewall extending from said separation wall to said first open end of said housing, said first surface forming a closed first end of said first cavity, and a second surface opposite said first surface and essentially perpendicular to a second portion of said sidewall extending from said separation wall to said second open end of said housing, said second surface forming a closed second end of said second cavity, and a protrusion within said first cavity comprising an inner surface defining an inner portion of said first cavity, an outer surface defining an outer portion of said first cavity, and an outer thread on said outer surface, said outer thread being sufficient to interlock with a mating feature of said male needleless connector forming a leak proof seal, said method comprising at least one of: receiving a male needleless connector within said first cavity, and securing said hub of said male needleless connector within said inner portion of said first cavity by interlocking at least a portion of said outer thread of said protrusion with said mating feature disposed on a collar of said male needleless connector when said collar is received within said outer portion of said first cavity; and receiving a hub of a female needleless connector within said second cavity, and securing said hub of said female needleless connector within said second cavity by interlocking at least a portion of said inner thread with a mating feature on said hub of said female needleless connector.

13. The method of claim 12 wherein: said mating feature of said male needleless connector comprised a thread, and said protrusion comprises a full thread corresponding to said thread of said mating feature of said male needleless connector.

14. The method of any one of claims 12 or 13 wherein: said protrusion extends essentially from said first surface of said separation wall toward said open first end of said housing.

15. The method of any one of claims 12, 13, or 14 wherein: said protrusion extends essentially parallel to said cylindrical sidewall.

16. The method of any one of claims 12, 13, or 15 further comprising: a second protrusion within said second cavity, wherein: when said hub of said female needleless connector is received within said second cavity, said second protrusion interfeces with an open end of said hub of said female needleless connector.

17. The method of any one of claims 12, 13, 15, or 16 wherein: said second protrusion extends essentially from said second surface of said separation wall toward said open second end of said housing.

18. The method of any one of claims 12, 13, 15, 16, or 17 wherein: said housing comprises an essentially cylindrical outer surface formed by an exterior of said cylindrical sidewall.

19. The method of any one of claims 12, 13, 14, 15, 16, 17, or 18 further comprising: at least one disinfection sponge configured within at least one of said inner portion of said first cavity, said outer portion of said first cavity, and said second cavity; and at least one removable cover sealing at least one of an opening to said inner portion of said first cavity, said open first end of said housing, and said open second end of said housing.

20. The method of any one of claims 12, 13, 14, 15, 16, 17,18, or 19 wherein: said sidewall is essentially cylindrical.