WO2022241161A1 - Antimicrobial puncture site patch with post injection safety sealing - Google Patents
Antimicrobial puncture site patch with post injection safety sealing Download PDFInfo
- Publication number
- WO2022241161A1 WO2022241161A1 PCT/US2022/029061 US2022029061W WO2022241161A1 WO 2022241161 A1 WO2022241161 A1 WO 2022241161A1 US 2022029061 W US2022029061 W US 2022029061W WO 2022241161 A1 WO2022241161 A1 WO 2022241161A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spacer
- puncture site
- patch
- self
- elastomeric
- Prior art date
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive plasters or dressings
- A61F13/023—Adhesive plasters or dressings wound covering film layers without a fluid handling layer
- A61F13/0233—Adhesive plasters or dressings wound covering film layers without a fluid handling layer characterised by the oclusive layer skin contacting layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive plasters or dressings
- A61F13/023—Adhesive plasters or dressings wound covering film layers without a fluid handling layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/00051—Accessories for dressings
- A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive plasters or dressings
- A61F13/0259—Adhesive plasters or dressings characterised by the release liner covering the skin adhering layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00365—Plasters use
- A61F2013/00412—Plasters use for use with needles, tubes or catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00846—Plasters with transparent or translucent part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00855—Plasters pervious to air or vapours
- A61F2013/00859—Plasters pervious to air or vapours with macroscopic openings
Definitions
- a protective patch for use during injections that incorporates a microbicidal, microbiostatic, or/and anti-viral agent to kill and/or reduce the infectivity of microbial organisms (e.g. viruses, bacterial, fungi, etc.) that may have been exposed as a result of the puncture to the skin.
- microbial organisms e.g. viruses, bacterial, fungi, etc.
- a puncture site patch that includes: an elastomeric, self-sealing membrane with an exterior face and an interior face; a spacer including an outer face and an inner face, where the outer face of the spacer is coupled to the interior face of the elastomeric, self-sealing membrane and where the spacer also includes an aperture that forms a cavity defined by the interior face of the elastomeric, self-sealing membrane, spacer, and skin when applied to a user; an adhesive film to adhere to skin, that is located on the inner face of the spacer; at least one elongated tab that can move between a first position and a second position; where when in the first position the at least one elongated tab extends outward from a periphery of the spacer; and where when in the second position the puncture site patch is
- the at least one elongated tab is a first elongated tab and the puncture site patch further includes a second elongated tab, where the first and second elongated tabs each extend outward from the periphery of the spacer and are disposed directly opposing each other. In some such implementations, when in the second position the first and second elongated tabs substantially overlap each other.
- the puncture site patch additionally includes an axis running through a center of the aperture which defines a first and second side of the spacer, and where when in the second position the puncture site patch is folded along the axis such that the first and second sides of the spacer substantially overlap each other and the at least one elongated tab is folded over the substantially overlapping first and second sides of the spacer to seal the first and second sides of the spacer closed.
- the at least one elongated tab when in the second position the at least one elongated tab is folded over the aperture to seal the cavity closed.
- the puncture site patch additionally includes a release paper in contact with and completely covering the adhesive film, where the release paper is removed prior to application to skin.
- the at least one elongated tab further included deadened adhesive.
- the elastomeric, self-sealing membrane is substantially transparent.
- the elastomeric, self-sealing membrane further includes an antimicrobial agent.
- the antimicrobial agent is incorporated into the elastomeric, self-sealing membrane during extrusion.
- the antimicrobial agent is a coating applied to the elastomeric, self-sealing membrane.
- the antimicrobial agent is a plurality of silver nanoparticles.
- the antimicrobial agent is a carvacrol agent incorporated into the elastomeric, self-sealing, membrane at a concentration of about 0.01% to about 0.001%.
- a puncture site patch includes: a substantially transparent elastomeric, self-sealing membrane including an exterior face and an interior face; a spacer including an outer face and an inner face; where the outer face of the spacer is coupled to the interior face of the substantially transparent elastomeric, self-sealing membrane; where the spacer includes an aperture forming a cavity defined by the interior face of the substantially transparent elastomeric, self-sealing membrane, the spacer, and skin when applied to a user; an adhesive film to adhere to skin, the adhesive film on the inner face of the spacer; an axis running through a center of the aperture defining a first and second side of the spacer; an elongated tab to move between a first position and a second position; where when in the first position the elongated tab extends outward from a periphery of the spacer; and where when in the second position the puncture site patch is folded along the axis such that the first and second side of
- the elongated tab is folded over the substantially overlapping first and second sides of the spacer to seal the first and second sides of the spacer closed.
- the elongated tab is a first elongated tab and the puncture site patch additionally includes a second elongated tab, where the first and second elongated tabs each extend outward from the periphery of the spacer and are disposed directly opposing each other, and where when in the second position the first and second elongated tabs substantially overlap each other.
- the substantially transparent elastomeric, self-sealing membrane further includes an antimicrobial agent.
- the antimicrobial agent is incorporated into the elastomeric, self-sealing membrane during extrusion.
- the antimicrobial agent is a coating applied to the elastomeric, self-sealing membrane.
- a puncture site patch includes: a substantially transparent elastomeric, self-sealing membrane, where the substantially transparent elastomeric, self sealing membrane additionally includes: an exterior face, an interior face, and an antimicrobial agent; a spacer including an outer face and an inner face; where the outer face of the spacer is coupled to the interior face of the substantially transparent elastomeric, self-sealing membrane; where the spacer further includes an aperture forming a cavity defined by the interior face of the substantially transparent elastomeric, self-sealing membrane, the spacer, and skin when applied to a user; an adhesive film to adhere to skin, the adhesive film on the inner face of the spacer; an axis running through a center of the aperture defining a first and second side of the spacer; an elongated tab that can to move between a first position and a second position; where when in the first position the elongated tab extends outward from a periphery of the spacer; and
- FIG. 1 is a top view of the antimicrobial puncture site patch consistent with one embodiment described herein.
- FIG. 2 is an exploded perspective view of the patch of FIG. 1.
- FIG. 3 A, and FIG. 3B are a cross-sectional views of the patch of FIG. I.
- FIG. 3 A, and FIG. 3B are a cross-sectional views of the patch of FIG. I.
- FIG. 3 A is a cross-sectional view of the patch of FIG. 1 in an unused configuration
- FIG. 3B is a cross-sectional view ' of the patch of FIG. 1 in a disposal configuration.
- FIG. 4A, and FIG. 4B are perspective views of the patch of FIG. 1 positioned on a patient's arm.
- FIG. 5 is a top view of an antimicrobial puncture site patch consistent with another embodiment described herein,
- FIG. 6 is an exploded perspective view ' of the patch of FIG. 5.
- FIG. 7 A, FIG. 7B, FIG. 7C are a cross-sectional view's of the patch of FIG. 5.
- FIG. 7 A is a cross-sectional view' of the patch of FIG. 5 in an unused configuration
- FIG. 7B is a cross-sectional view of the patch of FIG. 5 in a first disposal configuration
- FIG. 7C is a cross-sectional view ' of the patch of FIG. 5 in a second disposal configuration.
- FIGS. 8A, and FIG. 8B are perspective views of the patch of FIG. 5 positioned on a patient’s arm.
- FIG. 9 is a top view of the patch of FIG. 5 in a disposal configuration.
- FIG. 10 is a perspective view of a package consistent with some embodiments described herein for containing the antimicrobial puncture site patch of FIG. 5.
- FIG 11 is a schematic view ' of a process by which an antimicrobial puncture site patch can be made.
- FIGs 1-3 illustrate an antimicrobial puncture site patch device 10 (hereinafter “the antimicrobial patch”, “the patch”, etc.)
- the patch 10 includes a membrane 12 and a spacer 14, where the spacer 14 further includes an aperture 16.
- the patch device 10 is generally circular, however, this is not intended to be limiting, as other shapes may be used including, but not limited to, square-shaped, rectangular, oval-shaped, triangular, and so on.
- the patch 10 may also, optionally, include a protective sheet or release paper 18.
- This protective sheet or release paper 18 may be used to protect an adhesive film 26 on the spacer 14 (as will be described in detail herein) until the patch 10 is to be applied to a patient’s skin, in some instances, the protective sheet or release paper 18 may be a similar size and shape as the spacer 14, or, in other instances, the protective sheet or release paper 18 may be slightly larger than the spacer 14.
- the protective sheet or release paper 18, may also include a first release tab 28i and a second release tab 28 2 , or other surface, to allow for a user to easily remove of the release paper 18 from the membrane 12 and spacer 14, which exposes the adhesive film 26.
- the patch 10 may also include a first pull tab 24i and second pull tab 24 2 that may protrude from the spacer 14.
- the first and second pull tabs 24 y 2 may be positioned directly across the aperture 16 from each other, such that (as described in detail herein) when the antimicrobial puncture site patch device 10 is folded along an axis A, first and second puli tabs 24j , 2 may contact each other (see e.g. Fig. 3B) to seal the patch 10.
- folding the first and second pull tabs 24y 2 in this manner may also seal the interior of the patch 10, so as to prevent contact with and the spread of pathogens in the post injection environment.
- pull tabs 241. 2 may facilitate the removal of the patch 10, as they may not include adhesive. In some instances, only one of the pull tabs 24r.2 may be without adhesive film 26; while in other instances, both pull tabs 24 I, 2 may lack adhesive.
- the membrane 12 of the antimicrobial patch 10 may be an extruded elastomeric material.
- this elastomeric material may be sterile, self-sealing, non-coring, non-latex and FDA-approved for direct contact with human or animal skin. Due to the self sealing and non-coring nature of the elastomeric material, needles (of various sizes) used for injections through the membrane 12 may be wiped clean of blood on the withdrawal of the needle through the membrane 12.
- the membrane 12 may also, in some instances, be sufficiently transparent that the practitioner may observe the patient’s skin 90 when the patch 10 is positioned over the intended injection site 92.
- the physical structure of the membrane 12 includes an exterior face 11 and an interior face 13, the latter of which faces toward the patient’s skin 90 when the antimicrobial patch 10 is applied.
- the membrane material may be selected such that it is stable and essentially unaffected chemically or structurally, and therefore will not degrade if cleaned, disinfected and/or sterilized with agents such as ethyl alcohol, betadine, or similar common disinfectants.
- the membrane 12 may have any convenient shape that sufficiently covers the spacer 14.
- the exterior peripheries of the membrane 12 and spacer 14 may be substantially the same; while in other embodiments the peripheries may vary.
- the membrane 12 may further be infused with one or more antimicrobial agents.
- This infusion may be, in some instances, completed during the curing process of the elastomeric material (i.e. during the heating and extrusion of the polymer), as is further described with reference to Figure 11; this incorporation may be via extrusion or co-extrusion.
- antimicrobial agents both natural and synthesized. For example, some of these antimicrobial agents may be derived from various plants or herbs.
- antimicrobial herbs include, but are not limited to, components of oregano, sage, basil, fennel, garlic, lemon balm, peppermint, rosemary, Echinacea, sambucus, licorice, astragalus, ginger, ginseng, and/or dandelion.
- synthetic or lab produced antimicrobial agents may also be used, either alone or in combination with each other or any naturally occurring herbaceous antimicrobial agents.
- one or more metals may be used as the antimicrobial agent, for example silver or copper. These antimicrobial agents may provide varying mechanisms of action for their respective antimicrobial activity.
- agents may be effective against bacteria, viruses, and/or fungi, and may also be bactericidal, viricidal, and/or fungicidal and/or may be bacteriostatic, virustatic, and/or fungistatic. Any of the these above referenced agents may be incorporated into the elastomeric membrane 12; however, an important consideration in selecting one or more microbial agents is if the agent will remain active after being exposed to the conditions (e.g. heat, pressure, etc.) of extrusion of the elastomeric membrane 12, as described with reference to Fig. 11. Although the antimicrobial is described as being incorporated into elastomeric membrane 12 through extrusion, this is not intended to limiting; in some instances, the antimicrobial agent may be applied as a coating, as an electrometric film and/or through lamination.
- carvacrol which is a phenolic monoterpenoid of oregano ( Origanum vulgar e), may be incorporated into the elastomeric membrane 12 of the antimicrobial patch 10.
- Test tube studies have illustrated that carvacrol may reduce the activity of murine norovirus after about 15 minutes of exposure.
- carvacrol exhibits antiviral activity against a wide range of viruses, including herpes simplex viruses, rotavirus, respiratory syncytial virus, etc.
- carcacrol due to its phenolic structure carcacrol is expected to be effective against coronaviruses, including SARS-coV-2.
- the inhibitory action of carvacrol may be related to its hydrophobicity and lipophilic tendencies, as these characteristics result in an affinity for cell membranes and insertions therein that change the physical and chemical properties of the cell membrane and alter stability of the membrane.
- the carvacrol agents may be incorporated into the elastomeric membrane 12 during the extrusion and/or curing process at a concentration of about 0.01% to about 0.001%.
- a metal antimicrobial agent may be incorporated into or coated on to the elastomeric membrane 12 of the antimicrobial patch 10.
- These metal antimicrobial agents may, for example, cause cell damage to the microorganisms as a result of reactive oxygen species (ROS), other oxidative processes, an exchange of structural metals, and/or the destruction of iron-sulfur clusters.
- ROS reactive oxygen species
- silver nanoparticles or copper nanoparticles may be used as the metal antimicrobial.
- These metal nanoparticles may be included in the extrusion of the polymer forming the membrane 12 and/or may be coated onto the membrane 12 surface.
- the silver nanoparticles may be formed in situ , meaning that the polymer(s) utilized for the formation of the elastomeric membrane may be combined with a metal salt and reducing agent and the metal nanoparticle is formed during the combination.
- the pre-synthesized metal nanoparticles may be dispersed with the polymer medium.
- the silver may be incorporated into the membrane 12 at a concentration of about 0.1% to about 4%. In other instance, the silver may be incorporated into the membrane at a concentration of about 2.5%, at this concentration studies have shown the silver to be effective against multiple species of microorganisms.
- a silver-zeolite based antimicrobial is incorporated into the membrane.
- the spacer 14 is a material having an outer face 15 and an inner face 17.
- the spacer 14 can be composed of any material that can be sterilized and that can be used in direct contact with human skin, such as nylon, polyurethane, polyethylene, polypropylene, isoprene, cotton, linen, or combinations thereof.
- the material for the spacer 14 may be selected on the basis of its ability to absorb blood and bodily fluids, although these absorptive properties are not required. In some instances, where an absorbent material is used it may be desirable, although not required, for the absorbent material be somewhat resistant to wicking so as to minimize the risk of blood wicking from the cavity 20 to an outside edge 19 of the spacer 14.
- one or more additives may be incorporated into the extrusion layer in order to add absorbency.
- the spacer 14 is secured at or on its outer face 15 to the interior face 13 of the membrane 12.
- a variety of means known in the art can be used to secure the spacer 14 to the membrane 12, such as glue, hot melt adhesive, pressure sensitive adhesive, thermally sensitive adhesive, chemical bonding, acrylic cement, radio frequency welding, ultrasonic welding or a combination thereof, or any other means well known in the art.
- an important consideration in the selection of the securing means for the spacer is what if any interaction the selected securing means may have on the efficacy of the selected antimicrobial agent.
- the spacer 14 may, in some instances, be positioned on the membrane 12, such that the membrane 12 covers the entire outer face 15 of the spacer 14.
- the inner face 17 of the spacer 14 is coated with an adhesive film 26 for holding the patch 10 against a patient’s skin 90.
- the adhesive utilized be an FDA-approved material due to the adhesive’s direct contact with human skin.
- This spacer 14 may additionally include an aperture 16. In some instances, this aperture may be substantially centrally located.
- the aperture 16 has dimensions adequate to allow a practitioner to insert a needle through the membrane 12 and the aperture 16 without penetrating or damaging any part of the spacer 14.
- the aperture 16 bounded by the skin 90, the membrane 12, and the spacer 14 forms a cavity 20, through which a needle passes during an injection or blood withdrawal procedure. Any blood released from the skin from the puncture may pool in the cavity 20. In some instances, the blood may dry within the cavity 20, or, in other instances, it may be absorbed by the spacer 14.
- the spacer may include, or be constructed of, an absorbent material, and may optionally include a coagulating agent.
- the spacer 14 may be constructed from polyethylene and be coated with oxidized regenerated cellulose or any other suitable coagulant generally known in the art to coagulate blood.
- the aperture 16 is about 15 mm (0.591 in) in diameter are such that the cavity 20 thereby formed may contain up to about 0.3 cc of bodily fluids. It is to be understood that the dimensions of the aperture 16 and antimicrobial patch are not limited to those described herein and may vary based on the desired use of the antimicrobial patch 10. It is to be further understood that the volume the formed cavity may contain may vary as the dimensions of the aperture vary.
- the antimicrobial patch 10 is illustrated as applied to a patient’s skin 90 over an intended puncture site 92, for example an injection site.
- a cavity 20 forms between the skin 90 and the membrane 12 bounded by the spacer 14.
- This cavity 20 may, in some instances, have a depth D.
- the antimicrobial patch 10 may be secured and held directly against the patient’s skin 90 along any portion of the inner face 17 of the spacer 14 via the adhesive film 26. This secure attachment may be beneficial to prevent blood leakage and therefore potential spread of blood- borne pathogens, it may also be problematic for removing the antimicrobial patch 10 from the skin after use.
- the antimicrobial patch 10 may further include a first and second pull tab 24i , 2 that protrude from the spacer 14 on opposing sides.
- these pull tabs 24i , 2 may be unitary with the spacer 14.
- the first and/or second pull tab 24 i, 2 may or may not include adhesive on the inner face 26, and in some instances may only partially contain adhesive. In other instances, the adhesive may be deadened over part or the entirety of the first and/or second pull tabs 241 . 2. so that either a practitioner or patient may easily grab a portion of the one or both of the pull tabs 241 . 2, for example a portion without adhesive, to remove the antimicrobial patch 10 from the patient’s skin.
- FIGs. 3 A-B cross-sectional views of the antimicrobial patch 10 are provided in a first, unused configuration (Fig. 3 A) and in a second, disposal configuration (Fig. 3B).
- Fig. 3 A the starting position of the first and second pull tabs 241, 2 are extending directly opposed each other outward from the spacer 14.
- a patient, caregiver, or healthcare provider may desire to remove the antimicrobial patch 10.
- the patient, caregiver, etc. may easily grab a portion of the one or both of the pull tabs 241. 2 and fold the antimicrobial patch 10 along a center axis A, so as to ensuring the aperture 16 is completely covered.
- the first and second pull tabs 241 . 2 may substantially overlap each other.
- the existing adhesive film 26 on the antimicrobial patch 10 is used to create a sealed enclosure 40 to lock in and prevent leakage of bodily fluids, pathogens, etc.
- the adhesive film 26 extends on to a part (or the entirety of) one or both of the pull tabs 241. 2 so that they may further seal the patch 10.
- any blood, viral particles, bacteria, or the like contained therein may be in contact with the antimicrobial membrane 12; contact with this antimicrobial membrane 12 for about 15 minutes or longer may result in the inactivation of any viral particles, making disposal of the patch 10 safe.
- FIGS 5-6, 7A-C, 8 A-B, and 9-10 illustrate another embodiment of an antimicrobial puncture site patch 110.
- the patch 110 may also include a membrane 112 and a spacer 114 with an aperture 116. Similar to the previous embodiments discussed herein the patch 110 is substantially circular; however, as described with the previous embodiment, this is not intended to be limiting.
- the patch 110 may also, optionally, include a protective sheet or release paper 118 to protect an adhesive film 126 on the spacer 114.
- the release paper 118 may be a similar size and shape as the spacer 114, but is not so limited, as it may also be slightly larger than the spacer 114.
- the release paper 118 may also include a release tab 128, or other surface, to allow for easy removal of the release paper 118 from the membrane 112 and spacer 114.
- the patch 110 may also include an elongated pull tab 124 that may protrude from the spacer 114. This elongated pull tab 124 may facilitate the removal of the patch 110 from a patient.
- this elongated pull tab 124 may be large enough to be folded over on the remainder of the adhesive film 126 (e.g. on the elongated pull tab 124) to completely enclose the cavity 120 during the disposal process (see also Fig. 9). Folding the elongated pull tab 124 over on the remainder of the adhesive film 126 and enclosing the cavity 120 ensures the antimicrobial agent on the membrane remains in contact with any contaminated blood on the adhesive layer and seals the cavity 120 to prevent any contact with the bodily fluids and/or pathogens contained therein.
- the antimicrobial patch 110 may be folded approximately in half along a center axis A, which defines a first side of the spacer 130 and a second side of the spacer 132.
- the first side of the spacer 130 and second side of the spacer 132 may be substantially overlapped, so as to ensure the cavity 120 is completely enclosed, forming closed patch 110.
- the elongated pull tab 124 may then be folded over the closed patch 110, and the adhesive film 126 on the elongated tab may be used to further seal the patch 110 in the closed position.
- the membrane 112 of the antimicrobial patch 110 may be an elastomeric material similar to any to the elastomeric material described with reference to the previous embodiments. As described previously it may be advantageous, in some instances, for the membrane 112 to be sufficiently transparent that the practitioner may observe the patient’s skin 190 when the patch 110 is positioned over the intended injection site 192. In some instances, this transparency may be defined by a total transmittance measurement, haze measurement, clarity measurement, optical density, or any other known measures. Similar to the previously described membrane, membrane 112 may also include an exterior face 111 and an interior face 113. As described previously, the membrane 112 may further be infused with one or more antimicrobial agents.
- the spacer 114 includes an outer face 115 and an inner face 117, and is constructed of a material that may be placed in direct contract with human skin, such as nylon, polyurethane, polyethylene, polypropylene, isoprene, cotton, linen, or combinations thereof.
- the material used in constructing the spacer 114 may also, in some instances, be selected on the basis of its ability to absorb various bodily fluids. Where such an absorbent material is used, the absorbent material may, in some instances, be somewhat resistant to wicking so as to minimize the risk of blood wicking from the cavity 120 to an outside edge 119 of the spacer
- the spacer 114 may be secured at or on its outer face 115 to the interior face 113 of the membrane 112 by a variety of means known in the art; however, as mentioned previously an important factor in selecting the method of securing the spacer 114 is what, if any, interaction the selected securing method may have on the efficacy of the selected antimicrobial agent.
- the inner face 117 of the spacer 114 may be coated with an adhesive film 126 to facilitate holding the patch 110 against a patient’s skin 190.
- the spacer 114 may additionally include a substantially centrally located aperture 116 that has dimensions adequate for a practitioner to insert a needle through the membrane 112 without penetrating or damaging any part of the spacer 114. Similar to the previous embodiments, once applied the patch is bounded by the skin 190, the membrane 112, and the spacer 114 thereby forming a cavity 120. Any bodily fluids released from the skin from the puncture may pool in this cavity 120.
- the antimicrobial patch 110 is illustrated as applied to a patient’s skin 190 over an intended puncture site 192, as described this forms a cavity 120 between the skin 190 and the membrane 112 bounded by the spacer 114.
- This cavity 120 may, in some instances, have a depth D generally equal to the width W of the spacer 114 plus adhesive film 126.
- the elongated pull tab 124 that protrudes from the spacer 114 may facilitate removal of the antimicrobial patch 110.
- the elongated pull tab 124 may not contain an adhesive film; while in other instances, the elongated pull tab 124 may only partially contain an adhesive film 126, such that a portion of the elongated pull tab 124 remains free of adhesive.
- the elongated pull tab 124 or the adhesive-free portion thereof may facilitate a practitioner or patient in grasping the elongated pull tab 124.
- elongated pull tab 124 may be long and wide enough to be capable of folding over the entirety of the aperture 116 during the disposal process.
- the elongated pull tab 124 In the disposal position, the elongated pull tab 124 is folded over the aperture 116, this movement is indicated by the arrow.
- the original, starting position of the elongated pull tab 124 e.g. extending outward from the spacer 114
- the elongated pull tab 124 is long enough so as to cover substantially all of the adhesive film 126, which would require the length of the elongated pull tab to be about that of LI.
- the elongated pull tab 124 may only be long enough so as to cover the entirety of the aperture 116.
- the illustrated length is not to be construed as limiting, as the length of the elongated pull tab 124 may be any length sufficient completely cover the aperture 116.
- the width of the elongated pull tab 124 may also be any length sufficient completely cover the aperture 116.
- a non-limiting example of the width W 1 of the elongated pull tab 124 is illustrated in Fig. 9. Ensuring the aperture 116 is completely covered when folding the elongated pull tab 124 over, also ensures antimicrobial agent on the membrane 112 remains in contact with any contaminated blood on the adhesive film 126 and seals the cavity 120 to prevent any contact with the bodily fluids and/or pathogens contained therein.
- any bandage such as antimicrobial puncture site patch 110
- any bandage such as antimicrobial puncture site patch 110
- vaccination or other punctures may be removed and discarded in areas such as patients’ homes or elsewhere necessitates a disposal solution for minimizing the risk of spreading blood-borne pathogens via the contaminated bandage.
- the antimicrobial patch 110 may be sterilely packaged in a reusable container 60 that may be used for disposal of the patch 10 following removal from the patient.
- a reusable container 60 is illustrated in Figure 10.
- the reusable container 60 may be formed into the general shape of a rectangle or square sufficient to hold a single antimicrobial patch 110; however, this is not intended to be limiting, as any shape bad may be used so long as it is sufficient to contain an antimicrobial patch 110.
- the reusable container 60 may generally be in the form of a bag, such that it is constructed of one or more pieces of a polymer, plastic, or the like sealed to together.
- the reusable container 60 may include a first polymer sheet 62 and a second polymer sheet 64, where the two sheets 62, 64 are sealed together forming a first edge 66, a second edge 68, and bottom 70 portion of the reusable container 60.
- the first edge 66, second edge 68, and bottom 70 portion collective form a cavity 72 between the first and second sheets 62, 64.
- the reusable container 60 may further include an opening 74, through which the antimicrobial patch 110 is placed into the cavity 72.
- the reusable container 60 may further include a tear line 76 with notch (or perforation) 78 at one or both edges 66, 68 disposed proximate a top portion of the reusable container 60. This notch(es) may facilitate a user, for example a healthcare provider about to administer a vaccine, in opening the container 60.
- the reusable container 60 may further contain a closure means 80 to allow for reinsertion of the antimicrobial patch following use and reseal the reusable container 60.
- a closure 60 may be a closure member on a first sheet 62 that cooperates with a complementary closure element on a second sheet 64, as is typical of conventional “zip” type closures.
- Another non-limiting example of the closure may be an adhesive strip and corresponding protective cover on the exterior of one sheet 62, 64 of the container 60.
- the reusable container 60 may further include an antimicrobial agent.
- an antimicrobial agent only the portions of the reusable container 60 that may come into contact with the antimicrobial patch 110, such as those contained within the cavity 72, are infused or coated with the antimicrobial agent.
- the entire reusable container 60 may be infused or coated with an antimicrobial agent. This infusion may, for example, be completed during the production and/or curing process for the polymer or plastic used to construct the container 60.
- antimicrobial agents both natural and synthesized that may be incorporated into the reusable container 60.
- an antimicrobial agent may be carvacrol, which is a phenolic monoterpenoid of oregano ( Origanum vulgare).
- Carvacrol may be incorporated into the polymer or plastic of which the reusable container 60 is constructed.
- the carvacrol agents may be incorporated into the elastomeric membrane 12 during the extrusion and/or curing process at a concentration of about 0.01% to about 0.001.
- antimicrobial patch 110 Although described and illustrated using antimicrobial patch 110, it is to be understood that the reusable container 60 described and illustrated herein is not so limited, so a disposal container may be used with antimicrobial patch 10, or any other embodiment of antimicrobial patch contemplated herein.
- antimicrobial patches 10, 110 consistent with the embodiments described herein may also be used for insertion of a catheter into a patient, needle biopsies, joint injections or aspirations, or any other instances where a patient’s skin may be punctured by a sharp, needle-like object.
- the cavity can accommodate bodily fluids other than blood, such as an aspirate, etc.
- the creation of an antimicrobial patch 10 may include creating apertures 16 at one or more predetermined positions along a sheet of spacer material 14 (e.g. as nylon, polyurethane, polyethylene, polypropylene, isoprene, cotton, linen). As discussed previously, this aperture 16, may be substantially circular, but is not so limited. In some instances, this spacer material 14 may be pretreated with an adhesive film 26 on both faces 15, 17. In other instances, it may be necessary to apply an adhesive film 26 to the spacer material 14. The outer face 15 of the spacer material 14 may also include a sheet of protective paper 30 disposed thereon.
- spacer material 14 e.g. as nylon, polyurethane, polyethylene, polypropylene, isoprene, cotton, linen.
- this aperture 16 may be substantially circular, but is not so limited.
- this spacer material 14 may be pretreated with an adhesive film 26 on both faces 15, 17. In other instances, it may be necessary to apply an adhesive film 26 to the spacer material 14.
- the outer face 15 of the spacer material 14
- This sheet may function to protect the outer face 15 prior to the application of the membrane material 12 to the outer face 15.
- the protective paper 30 may be removed via a take-up roll 32 as the punched spacer material continues its forward motion.
- a sheet of release paper 18 may be disposed on the inner face 17 to protect the adhesive film 26 prior to use.
- a sheet of elastomeric membrane material 12 may then be secured to the outer face 15.
- the membrane 12, spacer member 14, release paper 18 combination may then be die cut 34 into the desired configuration.
- the sheet(s) of the elastomeric membrane, infused with the antimicrobial agent as described herein, may be separately formed prior to incorporation into the process described with reference to Figure 11.
- the elastomeric membrane 12 is a film extruded on standard plastics-processing equipment by a standard extrusion process.
- the antimicrobial agent for example carvacrol
- the antimicrobial agent may be added at temperature high enough to allow for the chemicals to be embed while extruding the film, but also not so hot as to deactivate or minimize the efficacy of the antimicrobial agent. Since the temperature at which a particular agent may lose effectiveness as an antimicrobial may vary, so may the temperature at which the agent is added and the extrusion takes place.
- carvacrol deactivates at about 214 degrees Fahrenheit, so the extrusion temperature may be below about 214 degrees Fahrenheit, and more preferably below about 200 degrees Fahrenheit.
- the anti-microbial may be applied as a coating, which may allow for extrusion at higher temperatures.
- the process may be modified in a variety of ways without departing from the scope of the invention, such as applying the first adhesive to the membrane rather than the spacer sheet, applying the second adhesive to the release paper rather than the spacer sheet, using lasers to cut the layered material, layering and cutting the membrane and spacer before adding the release sheet and combinations thereof.
- inventive embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed.
- inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein.
- references to “A and/or B”, when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc.
- the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements.
- This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified.
- “at least one of A and B” can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280033784.0A CN117320675A (en) | 2021-05-13 | 2022-05-12 | Antibacterial puncture site patch with safety seal after injection |
EP22727656.5A EP4337153A1 (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post injection safety sealing |
GB2317416.2A GB2621511A (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post injection safety sealing |
JP2023570193A JP2024518984A (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post-injection safety seal - Patents.com |
AU2022274905A AU2022274905A1 (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post injection safety sealing |
KR1020237037637A KR20230166113A (en) | 2021-05-13 | 2022-05-12 | Antibacterial puncture site patch that seals securely after injection |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202163188166P | 2021-05-13 | 2021-05-13 | |
US63/188,166 | 2021-05-13 | ||
US17/742,855 US20220362487A1 (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post injection safety sealing |
US17/742,855 | 2022-05-12 |
Publications (1)
Publication Number | Publication Date |
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WO2022241161A1 true WO2022241161A1 (en) | 2022-11-17 |
Family
ID=81927743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2022/029061 WO2022241161A1 (en) | 2021-05-13 | 2022-05-12 | Antimicrobial puncture site patch with post injection safety sealing |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2024518984A (en) |
KR (1) | KR20230166113A (en) |
AU (1) | AU2022274905A1 (en) |
GB (1) | GB2621511A (en) |
WO (1) | WO2022241161A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5160315A (en) * | 1991-04-05 | 1992-11-03 | Minnesota Mining And Manufacturing Company | Combined adhesive strip and transparent dressing delivery system |
US6685682B1 (en) * | 1993-03-22 | 2004-02-03 | 3M Innovative Properties Company | Carrier delivered dressing and method of manufacture |
WO2007106068A2 (en) * | 2006-02-27 | 2007-09-20 | Watson Robert L | Puncture site patch |
-
2022
- 2022-05-12 WO PCT/US2022/029061 patent/WO2022241161A1/en active Application Filing
- 2022-05-12 GB GB2317416.2A patent/GB2621511A/en active Pending
- 2022-05-12 JP JP2023570193A patent/JP2024518984A/en active Pending
- 2022-05-12 AU AU2022274905A patent/AU2022274905A1/en active Pending
- 2022-05-12 KR KR1020237037637A patent/KR20230166113A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5160315A (en) * | 1991-04-05 | 1992-11-03 | Minnesota Mining And Manufacturing Company | Combined adhesive strip and transparent dressing delivery system |
US6685682B1 (en) * | 1993-03-22 | 2004-02-03 | 3M Innovative Properties Company | Carrier delivered dressing and method of manufacture |
WO2007106068A2 (en) * | 2006-02-27 | 2007-09-20 | Watson Robert L | Puncture site patch |
Also Published As
Publication number | Publication date |
---|---|
KR20230166113A (en) | 2023-12-06 |
GB2621511A (en) | 2024-02-14 |
JP2024518984A (en) | 2024-05-08 |
GB202317416D0 (en) | 2023-12-27 |
AU2022274905A1 (en) | 2023-10-26 |
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