WO2013066285A1 - Apparatus for sterilizing a tubular medical line port - Google Patents

Apparatus for sterilizing a tubular medical line port Download PDF

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Publication number
WO2013066285A1
WO2013066285A1 PCT/US2011/001845 US2011001845W WO2013066285A1 WO 2013066285 A1 WO2013066285 A1 WO 2013066285A1 US 2011001845 W US2011001845 W US 2011001845W WO 2013066285 A1 WO2013066285 A1 WO 2013066285A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
floor
cavity
apparatus
cap
Prior art date
Application number
PCT/US2011/001845
Other languages
French (fr)
Inventor
Anthony J. Colantonio
Menno D. Jager
Original Assignee
Psi Medical Catheter Care,Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Psi Medical Catheter Care,Llc filed Critical Psi Medical Catheter Care,Llc
Priority to PCT/US2011/001845 priority Critical patent/WO2013066285A1/en
Publication of WO2013066285A1 publication Critical patent/WO2013066285A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M39/16Tube connectors; Tube couplings having provision for disinfection or sterilisation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/0005Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
    • A61L2/0082Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using chemical substances
    • A61L2/0088Liquid substances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M39/16Tube connectors; Tube couplings having provision for disinfection or sterilisation
    • A61M39/165Shrouds or protectors for aseptically enclosing the connector
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M39/16Tube connectors; Tube couplings having provision for disinfection or sterilisation
    • A61M39/18Methods or apparatus for making the connection under sterile conditions, i.e. sterile docking
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/20Closure caps or plugs for connectors or open ends of tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20Targets to be treated
    • A61L2202/22Blood or products thereof

Abstract

A scrubbing cap (10) for sterilizing a tubular medical line port (11) wherein the cap (10) is molded of a pliable plastic and is provided with an open annular cavity (12) therein which is dimensioned and contoured to receive through its mouth (13) a tubular medical line port (11) with a friction fit for scrubbing surfaces of the port with sterilizing liquid contained in the cavity (12). Flexible scrubber protrusions (15) coaxially extend into the cavity (12) from the floor (16) of the cavity ( 12) for scrubbing interior portions (17) of the medical line port (11). The floor (16) is flexibly displaceable whereby the floor (16) will displace or bulge outwardly when the scrubber protrusions (15) engage a valve within the port for thereby scrubbing the exposed surfaces of the valve (18) while preventing inadvertent opening of the valve.

Description

APPARATUS FOR STERILIZING A

TUBULAR MEDICAL LINE PORT

FIELD OF THE INVENTION

[0001] The present invention relates to the field of medical liquid administration, and more particularly, to an apparatus and method for applying antiseptic to the female end of a medical infusion apparatus.

BACKGROUND OF THE INVENTION

[0002] Improvements in patient safety have been among the primary concerns of many efforts in today's healthcare industry. Healthcare associated infections remain a major area of focus for these efforts. The Center for Disease Control and Prevention cites healthcare associated infections in the top ten leading causes of death in the United States. Annually, healthcare associated infections account for an estimated 1.7 million infections in hospitals, 99,000 associated deaths, and 4.5 to 5.7 billion dollars in added patient care costs.

[0003] The reduction of healthcare associated infections depends upon awareness and adherence to aseptic technique when handling medical equipment that comes into direct contact with a patient. Medical equipment is constantly threatened by exposure to surrounding contaminated surfaces. These surfaces contain microorganisms (bacteria) which can easily adhere to the surface of medical equipment. Once contaminated, the medical equipment becomes a danger to the patient and can serve as a silent killer. [0004] Healthcare institutions use millions of intravenous catheters each year. These catheters are at risk of contamination by a variety of mechanisms. One such mechanism relates to the contamination of the exposed ports of intravenous administration sets. This particular problem arises when an intravenous infusion line is temporarily disconnected from a patient (a process which can occur multiple times per day for an individual patient). During the time that the infusion line is disconnected from the patient, the exposed port of the intravenous line may contact potential contaminants. These contaminants could then lead to infection within a patient's bloodstream.

[0005] The critical event in the aforementioned circumstance is the failuer to retain the sterility of the intravenous port(s) and failuer to adequately disinfect the port in the instance of inadvertent contamination during the time of disconnect from infusion tubing. This risk is, in part, an unanticipated outcome of the somewhat recent implementation of needleless intravenous systems.

[0006] Currently, many practitioners are not actively considering the risk of contamination and are not taking steps to secure the sterility of exposed ports. When efforts are made to maintain the sterility of exposed ports, these efforts are both cumbersome (and therefore at times skipped over), or they fail due to technical shortcomings.

[0007] Safe practice recommendations include the use of aseptic technique when handling medical infusion lines. The current aseptic technique, as pertains specifically to intravenous catheters, includes sterilizing the exposed ports used for intermittent infusions with alcohol prep pads between uses. Disinfecting the surfaces of medical equipment with alcohol is a well accepted and established practice. Evidence exists supporting the use of a one minute alcohol exposure as an adequate disinfecting technique.

[0008] Current practice often utilizes alcohol cloth swabs to accomplish the task of disinfecting the surface of medical equipment, including intravenous tubing ports. This method has faults limiting its use. The exposure of the port to the cloth swab of alcohol is often performed in variable fashion. With variable techniques and inadequate exposure times to the disinfectant, successful sterilization is unlikely over the entirety of the surface area on female ports and port valve surfaces. In addition, the current standard disinfecting system of using an alcohol pad exposes the port, to the skin of the practitioner during and immediately after the disinfecting process. Lastly, the alcohol prep pads containing the cloth swabs may not be immediately available for use at the time of greatest need.

[0009] The port protection system disclosed in this invention description includes a means to temporarily and safely cover and apply antiseptic to the female end and end internal surfaces of a medical infusion apparatus. In this way, the device and associated method described will adequately provide a means to maintain the sterility of an indwelling intravenous administration set (or other medical infusion line), including any exposed internal valve surface, that has been disconnected from a patient until it is ready to be reattached for future use.

[0010] Some tubular medical line ports are needleless access devices which include a valve mechanism. It is an object of the present invention to provide an apparatus for sterilizing such tubular medical line ports, including the exposed valve surfaces, without risking inadvertent activation or depression of the mechanical valve inside the device, as this would open up the IV tubing and fluid pathway towards the patient.

SUMMARY OF THE INVENTION

[0011] The apparatus of the present invention for sterilizing a tubular medical line port comprises a cap unitarily molded of a flexible and pliable plastic and having an open annular cavity therein which is dimensioned and contoured to receive through the mouth of the cavity a tubular medical line port with a friction fit for scrubbing surfaces of the port with sterilizing fluid that is contained in the cavity. Flexible scrubber protrusions coaxially extend into the cavity from the floor of the cavity for scrubbing interior portions of the medical line port. The floor of the cavity is flexibly displaceable whereby the floor will displace when scrubber protrusions engage a valve within the port for thereby scrubbing exposed surfaces of the valve while preventing opening of the valve.

[0012] Inwardly directed flexible or pliable sidewall protrusions are provided on the sidewalls of the cavity for scrubbing exterior surfaces or sidewalls of the port to be scrubbed and sterilized. The sidewall protrusions may be comprised of luer threads for threadably engaging the port.

[0013] An annular inwardly protruding ring of the pliable material is provided at the mouth of the cap for stretched engagement with the port to inhibit escape of sterilization liquid contained in the cavity. In addition, the internal side walls of the cavity may be roughened to increase liquid surface tension for more effective retention to the internal sidewalls of the sterilization liquid.

[0014] The floor of the cavity is provided with an inwardly convex cross section and is integrally molded with the remainder of the cap. The cross section of the floor is thinner than the sidewalls of the cap whereby the floor will flexibly budge outward upon application of predetermined forces applied to the scrubber protrusions by a valve mechanism within the tubular medical line port being scrubbed in order to thoroughly scrub the valve surfaces but prevent depression or actuation thereof. The scrubber protrusions are integrally molded of the flexible or pliable plastic with the cap and the scrubber protrusions are coaxially arranged bristles.

[0015] Bottom side walls of the cap extend below the floor and thereby provide a bottom cavity in the cap for receiving the floor therein when it is displaced. Accordingly, accidental engagement of the displaced floor from the exterior of the cap is alleviated in order to prevent accidental engagement and depression of the floor and unintentional opening of the valve.

[0016] The convex floor area of the cavity, the side walls of the cavity and threads therein, together with the scrubber protrusions protruding upwardly from the floor create in effect a reservoir wherein the alcohol is trapped therein because the physical design of this reservoir area causes the surface tension to be high. This allows the alcohol retention when the device is inverted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other objects and advantages appear hereinafter in the following description and claims. The accompanying drawings show, for the purpose of exemplification, without limiting the scope of the invention or the appended claims, certain practical embodiments of the present invention wherein:

[0018] FIG. 1 is an exploded perspective view illustrating the sterilizing cap of the present invention just prior to engagement with a tubular medical line port to be sterilized;

[0019] FIG. 2 is a perspective view of the combination shown in FIG. 1 after the sterilizing cap has been engaged with the tubular medical line port to be sterilized;

[0020] FIG. 3 is an enlarged view in vertical mid cross section of the scrubbing cap of the present invention; and

[0021] FIG.4 is a view in vertical mid cross section of the sterilizing cap of the present invention in combination with a medical line port being sterilized, wherein the medical line port includes a valve.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Referring to the drawings, the cap 10 of the present invention for sterilizing a tubular medical line port, such as the needleless access device 11 , is integrally molded of a flexible and pliable plastic, such as a thermoplastic elastomer (TPE), and is provided with an open annular cavity 12 therein that is dimensioned and contoured to receive therein through mouth 13 the tubular medical line port 1 1 with a friction fit for scrubbing exterior surfaces 14 of the port 11 with a sterilizing fluid, such as alcohol, contained in the cavity 12. Flexible scrubber protrusions 15 coaxially extend into cavity 12 from the floor 16 of the cavity 12 for scrubbing interior portions 17 of medical line port 11.

[0023] However, in the example illustrated in FIG. 4, the port 11 is provided with a valve in the form of check valve 18 and the coaxially arranged bristles in the form of scrubbing protrusions 15 therefore cannot enter the interior of port 11 to access the internal sidewall 17. Accordingly, the scrubbing protrusions 15 engage the outer surfaces of the valve 18 and the outer annular end surface 19 of port 1 1 for scrubbing thereof. The internal workings of check valve 18 is not shown. There are a number of different spring biased valves on the market.

[0024] As is best illustrated in FIG. 4, floor 16 is flexibly displaceable whereby the floor will displace or bulge upwardly as illustrated in FIG. 4 when the scrubber protrusions 15 engage valve 18 within port 11 with a predetermined force. This provides excellent sterilization scrubbing of the exposed surfaces of the valve 18 and the end surface 19 of port 11 while at the same time preventing accidental opening of valve 18 by depression thereof.

[0025] Inwardly directed flexible or pliable sidewall protrusions 20 on the sidewalls of cavity 12 are provided for scrubbing exterior sidewalls 14 of the port 11. The sidewall protrusions 20 are provided in the form of luer threads for theadably engaging the threads 22 on port 11. The port 11 may thus be threadably engaged with cap 10 and due to the flexible or pliable nature of the cap and its integral threads 20, port 1 1 may be continuously rotated beyond initial threadable engagement as the pliable threads 20 will readily distort. This provides insured sterilization scrubbing of the exterior surfaces 14 of port 11. Typically the cap 10 is left on port 11 for approximately ten seconds after scrubbing to insure sterilization. Cap 10 may also be further rotated if additional scrubbing is desired. The cap 10 may also be left on for up to ninety six hours for protection of the port 1 1 between uses.

[0026] An inwardly protruding pliable ring 23 is provided at mouth 13 of cap 10 for stretched engagement with port 1 1 to inhibit escape of a sterilization liquid contained in cavity 12. Internal sidewalls 24 of cavity 12 are roughened to increase liquid surface tension for more effective retention of the sterilization liquid to the sidewalls.

[0027] Flexible floor 16 is provided with an inwardly convex cross section as best illustrated in FIG. 3 and is integrally molded with the remainder of cap 10. The cross section of floor 16 is thinner than the sidewalls 25 of cap 10 whereby floor 16 will flexibly bulge outward as illustrated in FIG. 4 upon application of predetermined forces applied to the scrubber protrusions 15 as illustrated in FIG. 4 when they are caused to pliably distort and forceably engage the outer annular surface 19 of port 11 and the outer surfaces of spring biased valve 18. Accordingly, accidental depression of the mechanical valve 18 is prevented while thorough and complete sterilization scrubbing of the outer surfaces of valve 18 is accomplished.

[0028] As is shown in FIG. 1 , a peel-off seal 29 initially covers mouth 13 of cap 10 to prevent evaporation and loss of sterilization liquid contained in cavity 12. [0029] The side walls 25 of cap 10 extend beyond or below floor 16 as indicated at 26 in FIG.4. This accordingly provides a bottom cavity in cap 10 for receiving the floor 16 therein as illustrated in FIG. 4 when the floor 16 is displaced. The result is that accidental engagement of displaced floor 16 from the exterior of cap 10 is minimized and alleviated in order to prevent accidental opening of the valve 18 by accidental engagement and depression of the displaced floor 16. The space between convex floor 16, the internal walls of cavity 12, flexible scrubber protrusions 15 and internal threads 20 provide a reservoir for retaining disinfectant liquid, such as alcohol, whereby the alcohol is trapped between these surfaces because of the physical design which causes the surface tension to be highest in this region. This allows for alcohol retention when the device is inverted.

Claims

We claim:
1. Apparatus for sterilizing a tubular medical line port, comprising:
a cap molded of a pliable plastic and having an open annular cavity dimensioned and contoured to receive therein through a mouth a tubular medical line port with a friction fit for scrubbing surfaces of said port with a sterilizing fluid contained in said cavity;
flexible scrubber protrusions coaxially extending into said cavity from a floor of said cavity for scrubbing interior portions of a medical line port;
said floor flexibly displaceable whereby said floor will displace when said scrubber protrusions engage a valve within said port for thereby scrubbing exposed surfaces of said valve while preventing opening of said valve.
2. The apparatus of claim 1, inwardly directed pliable sidewall protrusions on sidewalls of said cavity for scrubbing exterior side walls of said port.
3. The apparatus of claim 2, wherein said sidewall protrusions are comprised of luer threads for threadably engaging said port.
4. The apparatus of claim 1, including a pliable and annular inwardly protruding ring at said mouth for stretched engagement with said port to inhibit escape of a sterilization liquid contained in said cavity.
5. The apparatus of claim 1 , wherein internal sidewalls of said cavity are roughened to increase liquid surface tension for more effective retention thereto of sterilization liquid.
6. The apparatus of claim 1 , said floor having an inwardly convex cross section and integrally molded with the remainder of said cap, said cross section being thinner than side walls of said cap whereby said floor will flexibly bulge outward upon application of predetermined forces applied to said scrubber protrusions.
7. The apparatus of claim 6, wherein said scrubber protrusions are integrally molded of said pliable plastic with said cap.
8. The apparatus of claim 7, wherein said scrubber protrusions are coaxially arranged bristles.
9. The apparatus of claim 1 , including a peel-off seal covering said mouth.
10. The apparatus of claim 1, including bottom side walls of said cap extending below said floor and thereby providing a bottom cavity in said cap for receiving said floor therein when displaced whereby accidental engagement of said displaced floor from the exterior of said cap is alleviated in order to prevent opening of said valve.
PCT/US2011/001845 2011-11-02 2011-11-02 Apparatus for sterilizing a tubular medical line port WO2013066285A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2011/001845 WO2013066285A1 (en) 2011-11-02 2011-11-02 Apparatus for sterilizing a tubular medical line port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2011/001845 WO2013066285A1 (en) 2011-11-02 2011-11-02 Apparatus for sterilizing a tubular medical line port

Publications (1)

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WO2013066285A1 true WO2013066285A1 (en) 2013-05-10

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9186707B2 (en) 2007-04-02 2015-11-17 C. R. Bard, Inc. Insert for a microbial scrubbing device
US9192449B2 (en) 2007-04-02 2015-11-24 C. R. Bard, Inc. Medical component scrubbing device with detachable cap
WO2018106508A1 (en) * 2016-12-09 2018-06-14 3M Innovative Properties Company Disinfecting cap for open female luer devices
USD834187S1 (en) 2016-01-18 2018-11-20 Becton, Dickinson And Company Disinfecting cap

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070112333A1 (en) * 2005-11-17 2007-05-17 Becton, Dickinson And Company Patient fluid line access valve antimicrobial cap/cleaner
US20100000040A1 (en) * 2008-07-03 2010-01-07 Shaw Thomas J Cleaning Tool for Attachment Surfaces
US20100050351A1 (en) * 2008-03-20 2010-03-04 Colantonio Anthony J Apparatus and method for sterilizing a tubular medical line port
US20100064456A1 (en) * 2008-05-06 2010-03-18 Ferlic Michael J Universal sterilizing tool
US20110265825A1 (en) * 2007-02-12 2011-11-03 Ivera Medical Corporation Female luer connector disinfecting cap

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070112333A1 (en) * 2005-11-17 2007-05-17 Becton, Dickinson And Company Patient fluid line access valve antimicrobial cap/cleaner
US20110265825A1 (en) * 2007-02-12 2011-11-03 Ivera Medical Corporation Female luer connector disinfecting cap
US20100050351A1 (en) * 2008-03-20 2010-03-04 Colantonio Anthony J Apparatus and method for sterilizing a tubular medical line port
US20100064456A1 (en) * 2008-05-06 2010-03-18 Ferlic Michael J Universal sterilizing tool
US20100000040A1 (en) * 2008-07-03 2010-01-07 Shaw Thomas J Cleaning Tool for Attachment Surfaces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9186707B2 (en) 2007-04-02 2015-11-17 C. R. Bard, Inc. Insert for a microbial scrubbing device
US9192449B2 (en) 2007-04-02 2015-11-24 C. R. Bard, Inc. Medical component scrubbing device with detachable cap
US9352140B2 (en) 2007-04-02 2016-05-31 C. R. Bard, Inc. Medical component scrubbing device with detachable cap
USD834187S1 (en) 2016-01-18 2018-11-20 Becton, Dickinson And Company Disinfecting cap
WO2018106508A1 (en) * 2016-12-09 2018-06-14 3M Innovative Properties Company Disinfecting cap for open female luer devices

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