US20120318265A1 - Mask for the administration of inhaled drugs - Google Patents

Mask for the administration of inhaled drugs Download PDF

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Publication number
US20120318265A1
US20120318265A1 US13/494,458 US201213494458A US2012318265A1 US 20120318265 A1 US20120318265 A1 US 20120318265A1 US 201213494458 A US201213494458 A US 201213494458A US 2012318265 A1 US2012318265 A1 US 2012318265A1
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United States
Prior art keywords
mask
patient
face
mouth
section
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Abandoned
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US13/494,458
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English (en)
Inventor
Israel Amirav
Asaf Halamish
Michael Newhouse
K. Mosaddeq Hossain
Paresh Vasandani
Vijay Shukla
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Nostrum Tech LLC
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Nostrum Tech LLC
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Publication date
Application filed by Nostrum Tech LLC filed Critical Nostrum Tech LLC
Priority to US13/494,458 priority Critical patent/US20120318265A1/en
Publication of US20120318265A1 publication Critical patent/US20120318265A1/en
Assigned to NOSTRUM TECHNOLOGY LLC reassignment NOSTRUM TECHNOLOGY LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HALAMISH, ASAF, NEWHOUSE, MICHAEL, HOSSAIN, K. MOSADDEQ, SHUKLA, VIJAY, VASANDANI, Paresh, AMIRAV, ISRAEL
Priority to US16/423,728 priority patent/US11129947B2/en
Priority to US16/518,652 priority patent/US10675420B2/en
Priority to US16/863,684 priority patent/US10729859B1/en
Abandoned legal-status Critical Current

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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
    • A61M15/00Inhalators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J17/00Baby-comforters; Teething rings
    • A61J17/10Details; Accessories therefor
    • A61J17/101Emitting means, e.g. for emitting sound, light, scents or flavours
    • A61J17/1011Emitting sound, e.g. having rattles or music boxes
    • 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
    • A61M15/00Inhalators
    • A61M15/0001Details of inhalators; Constructional features thereof
    • A61M15/0018Details of inhalators; Constructional features thereof with exhalation check valves
    • 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J17/00Baby-comforters; Teething rings
    • A61J17/001Baby-comforters
    • 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
    • A61M11/00Sprayers or atomisers specially adapted for therapeutic purposes
    • 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • A61M2016/0661Respiratory or anaesthetic masks with customised shape
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/13General characteristics of the apparatus with means for the detection of operative contact with patient, e.g. lip sensor
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/59Aesthetic features, e.g. distraction means to prevent fears of child patients
    • 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
    • A61M2240/00Specially adapted for neonatal use

Definitions

  • the present invention relates to a mask for the administration of inhalable drugs, particularly by children and infants.
  • asthma drugs which employ pressurized metered dose inhalers (MDI) that deliver a measured dose of an aerosolized liquid or powder to a mouthpiece.
  • MDI pressurized metered dose inhalers
  • holding chambers are used, that serve to trap larger particles and provide a reservoir for suspended drug aerosol if the chamber is used with an inhalation mask.
  • Other devices such as nebulizers are also in common use, and other diseases besides asthma are treatable by inhaled drugs.
  • Breathing masks for use with children have several special requirements.
  • the masks must be sized appropriately for children's′ faces, which is not necessarily a matter of merely shrinking an adult-sized mask.
  • the size and shape of the mask are critical to providing a good seal at the edges of the mask, to prevent leakage of medication to the eyes, and also to prevent loss of dose that would otherwise go to the lungs. Additionally, maintaining eye contact with the child may be important with young children, so a suitable mask should not cover the eyes or obscure vision.
  • a known problem with infants or children in the administration of inhaled medicaments is that existing masks often cause agitation and distress in a child, and makes them cry. If this occurs, the child will usually become uncooperative, and the disruption and uneven breathing during crying will probably prevent effective delivery of the drug substance to the lungs.
  • Dead space is not a substantial problem with oxygen therapy or inhaled anesthesia, because the active gas for oxygen therapy or anesthesia is the fraction of active gas as a volume or partial pressure percentage of the active gas in ordinary air.
  • the active gas can be used in excess at minimal cost, and metering of an absolute quantity of active substance is generally not important.
  • the absolute dose of the active drug usually is important.
  • a certain quantity of medication is placed into the device, and the medical objective is to have as much of the medication inhaled into the lungs as possible.
  • the medical objective is to have as much of the medication inhaled into the lungs as possible.
  • a substantial amount of the active drug may be suspended in the dead space after an initial inhalation. That quantity of drug will be largely expelled from the dead space on the exhalation cycle, because all masks require an exhalation valve to vent exhaled air.
  • With a small dead space there is less volume for drug to remain suspended within the mask, so a greater percentage of the total dose will be inhaled, and a smaller quantity of drug will be expelled from the device on the exhalation.
  • Nebulizers In the administration of inhaled drugs, essentially two types of devices are in common use, nebulizers and metered dose inhalers (MDI's). Nebulizers have a reservoir containing a drug solution through which a stream of air is bubbled through or over (typically). The air stream generates a mist or vapor, of atomized droplets suspended in air, which is conveyed to the mouth of the patient through a tube and a mouthpiece. In the case of invalid adults or small children up to the age of about 5 years, a mask is used.
  • MDI's are used for a wide variety of inhaled drugs, for example ⁇ -agonists, steroids, and anticholinergic drugs, for use in asthma, bronchitis, COPD and other respiratory ailments.
  • MDI's typically comprise a canister with a metering device and exhaust nipple.
  • the canister contains a solution or suspension of a drug under pressure.
  • a plastic actuator holds the canister and has a mouthpiece. Depressing the canister in the actuator actuates the delivery of a dose.
  • Adults and older children can use the mouthpiece on the actuator directly, by coordinating their breathing with actuation.
  • MDI's are used with a holding chamber or spacer, which is typically a tube about 10 cm long and 5 cm in diameter, that has a receptacle at the rear for holding an MDI, and a mouthpiece at the front end.
  • the drug is introduced into the chamber, and then inhaled by the patient from the mouthpiece.
  • the chamber is usually used to trap large particles that would otherwise lodge in the mouth or throat, causing irritation, rather than enter the lungs, which is the intended target organ.
  • the use of a spacer reduces or eliminates the need for the patient to coordinate their breathing with the actuation, since the drug can remain suspended in the chamber for several seconds until the patient inhales it.
  • MDI chambers can also be coupled to a breathing mask for use by patients who cannot use a mouthpiece, such as small children or incompetent patients.
  • a caregiver actuates the MDI and the suspended drug substance enters the chamber and is then inhaled by the patient with no need to coordinate breathing or use of a mouthpiece.
  • a suitable mask typically will have an inhalation valve and an exhalation valve.
  • the inhalation valve is one-way, only allowing air to travel from the chamber into the mask, so that air with suspended drug is only drawn through the chamber during inhalation.
  • the inhalation valve blocks exhaled air from entering the chamber and blowing drug out the back end vents.
  • the exhalation valve is a one-way valve that allows exhaled air to vent out of the interior of the mask, but does not allow outside air to enter during inhalation.
  • An example of a chamber and mask for use with an MDI is disclosed in U.S. Pat. No. 6,904,908.
  • This invention provides a mask for administering an inhalable medication to a patient.
  • the mask may employ a flexible ergonomically shaped molded elastomeric face mask body covering the nose and mouth of the patient.
  • the body of the mask includes a nose section and a mouth section.
  • the edge of the mask in contact with the patient's face is a thin soft lip that may be angled outward from the interior of the mask.
  • the drug delivery path is aligned with the nose of the patient.
  • the mask has an ergonomically contoured mouth section shaped to fit close to the mouth and lips of the patient with minimal dead space in the mouth section.
  • the mask is intended for use with infants or small children.
  • the mask has a soother device orifice in the mouth section of the mask.
  • the mask has a visual seal indicator that functions as a biofeedback device to indicate a secure seal.
  • FIG. 1 is a perspective view of the rear of the small mask with a soother device orifice.
  • FIG. 2 is a perspective view of the front of the small mask with a soother device orifice.
  • FIG. 3 is a perspective view of the rear of the small mask with the optional soother device design.
  • FIG. 4 is a perspective view of the front of the small mask with no soother orifice.
  • FIG. 5 is a cross-section view of the small mask with optional soother device design.
  • FIG. 6 is a front elevation view of the small mask with the optional soother device design.
  • FIG. 7 is a front elevation of the medium mask with the optional soother device design.
  • FIG. 8 is a perspective view of the front of the medium mask with the optional soother device design.
  • FIG. 9 is a perspective view of the front of the large mask with the optional soother device design.
  • FIG. 10 is a perspective view of the rear of the large mask with the optional soother device design.
  • FIG. 11 is a bottom elevation of the medium mask.
  • FIG. 12 is a left side elevation of the medium mask.
  • FIG. 13 is a schematic of the face of a child showing the area needing to be covered by an inhalation mask.
  • the term “mask” refers to a flexible molded elastomeric body that covers the nose and mouth of a patient in need of an inhalable medication, and wherein the mask channels inhalable medication to the nose of the patient.
  • the term “soother device” is a device intended to be sucked on in the mouth of an infant or small child.
  • anterior refers the direction or face of the apparatus in the direction of the face of the patient.
  • posterior is the direction or face facing away from the patient.
  • a mask for administering an inhalable medication to a patient with a flexible ergonomically shaped molded elastomer face mask body covering the nose and mouth of the patient, comprising a nose section and a mouth section, wherein the edge of the mask in contact with the patient's face is a thin soft lip; wherein the edge of the mask in contact with the face is contoured with at least one inflection point of at least approximately 10°; a drug delivery path aligned with the nose of the patient comprising an opening for receiving an inhalable medication in the nose section of the mask configured to minimize the dead space in the mask; and an ergonomically contoured mouth section shaped to fit close to the mouth and lips of the patient with minimal dead space in the mouth section.
  • this invention further provides a method of administering an inhalable medicament to a patient using the mask disclosed in the preceding paragraph.
  • This invention provides novel inhalation mask designs for the administration of inhalable medications, with an ergonomically shaped and contoured shape, designed to fit close to the face, with minimal dead space, and an airway for receiving an inhalable medication aligned with the nose.
  • an orifice is provided for a soother device for use with small children.
  • the ergonomically shaped and contoured face masks of this invention are specifically intended for use with infants or young children as patients in need of an inhalable medication.
  • these masks are intended for use with the assistance of an adult caregiver, such as a parent or medical assistant, who assists the child in using the mask and administering the inhalable medication with the inhalation masks of this invention.
  • the mask has an orifice for use with a soother device, such as a pacifier, that can relax the child while the mask is in use.
  • the mask has a cuttable section making the use of a soother device optional.
  • the inventive mask design features an airway in communication with a source of inhalable medication aligned with the nose, rather than the mouth, which is typical in prior art inhalation masks.
  • the nasal alignment is generally useful for all patients, because nasal breathing is normally a preferred mode of breathing. In particular, children up to about 18 months of age are obligate nasal breathers, and older children also normally prefer to breathe through their nose.
  • the mask has a contoured shape, shaped to fit closely to the face.
  • the ventral surface (e.g., 44 in FIG. 4 ) of the mouth section is contoured to conform to the shape of the face minimizing dead space in the interior of the mask.
  • the combination of the airway configuration and the contoured profile of the instant masks substantially reduces the dead space within the mask, which is a highly desirable feature.
  • the instant masks may be used, for example, for administration of inhalable medication, such as inhaled gases, powders, mists, sprays, aerosols, or suspensions. These inhalable medications may be administered for example, from a metered dose inhaler (MDI) coupled to a holding chamber.
  • MDI metered dose inhaler
  • the instant masks are useful with a nebulizer.
  • this invention provides a breathing face mask for administering inhaled medications to a patient, who may be a young child, age newborn to about five years old.
  • the mask body comprises a molded elastomeric soft and flexible plastic material.
  • the face mask covers the nose and mouth of the patient, and includes a nose section and a mouth section.
  • the edge of the mask in contact with the patient's face is a thin soft lip that may be angled outward from the interior of the mask.
  • the mask is shaped such that the edge in contact with the face is contoured with at least one inflection point of at least approximately 10°. In an embodiment, there are three or more such inflection points.
  • the ventral surface of the mask over the mouth section is contoured to conform to the profile of a human face and minimize dead space in the interior of the mask.
  • the mask further has a drug delivery path aligned with the nose of the patient comprising an opening for receiving an inhalable medication in the nose section of the mask configured to minimize the dead space in the mask.
  • the ventral face of the mask in the mouth section is smooth for use with no soother device.
  • the mask may have a flow indicator mounted adjacent to the nostrils of the patient, providing a visual indication of exhalation by the patient.
  • An embodiment of a flow indicator 30 is shown in FIG. 1 .
  • the visual indication may be a colored flap that moves in response to the breathing of the patient. The position of the flap can be viewed by a caregiver to confirm the exhalation of a patient, such as an infant or small child.
  • the exhalation valve may comprise a biofeedback system, wherein the flow indicator moves in response to the exhalation by the patient thereby providing a visual indication of the quality of the seal around the face of the patient.
  • any leakage increases the effective dead space in the mask, which is also undesirable. Any drug suspended in dead space at the end of an inhalation will likely be expelled, and lost to the environment, during exhalation. In the administration of drugs (as opposed to anesthesia), loss of drug is generally undesirable.
  • the biofeedback from a visual indicator in the mask informs the caregiver that the seal is not optimal, suggesting that the mask needs to be repositioned on the face of the child.
  • the orifice may comprise a duck-bill-type of structure, with the duck-bill pointed inward (toward the face of the patient).
  • a soother device must be inserted prior to use. If present, the soother device orifice provides an effective seal to minimizes air leakage when a soother device is inserted.
  • the inventive masks as shown in FIGS. 1-12 , have an anthropometrically designed shape that is ergonomically contoured to fit the faces of patients, particularly that of infants or small children.
  • the inventive masks are intended to fit snugly yet comfortably on the face of such patients.
  • the design of the child masks disclosed herein is the result of an extensive study by the instant inventors (to be published in full elsewhere) of the faces of approximately 350 children aged 2 to 55 months. This study was necessitated by an apparent lack of relevant data on facial dimensions in small children.
  • the objective of the inventors' facial study was to design a mask so that the alignment and seal between the facial surface contours of small children and the mask are quantifiably optimized. That is, the mask should be designed to fit the specific population of infants and children by evaluating anthropometric data obtained from an appropriate population so that the mask fit is, on average, optimized and the number of mask sizes required is minimized in order to simplify prescribing for optimum fit.
  • the other method of measuring faces was a 3-D topographic measurement method (anthropometric) developed in cooperation with the Technion University (Israel) Computer Science Department.
  • the system is based on structured light technology where specially designed light patterns are projected on an object to obtain 3-D geometric model. This procedure worked well with infants and small children, producing 3-D maps of children's faces. Measurements with sub-millimeter accuracy that could be obtained quickly and easily, with minimal discomfort to the subjects.
  • the face study additionally gave the inventors facial contour parameters used to design the contour of the masks to maximize fit, comfort on the face, and a tight seal around the edges, while minimizing dead space in the mask.
  • the inventive masks shown in FIGS. 1-12 , have a body 10 fabricated from a flexible molded elastomeric material, such as a flexible silicone plastic.
  • the masks have a nasal section 12 and a mouth section 14 .
  • the airway 20 is part of the nasal section.
  • the lip 60 of the mask provides a seal around the face of the patient.
  • a soother device orifice 40 is within the mouth section 14 .
  • the orifice 40 is also embedded in a flexible accordion section 50 .
  • the mask may also include a visual seal indicator 30 , which includes an indicator flap 32 .
  • the mask includes a thin section 42 that may be cut or punctured to insert a soother device such as a pacifier.
  • FIGS. 1-6 show views of the small mask design from table 1.
  • FIGS. 1 and 3 are a perspective views showing the interior of the small mask, that is, the side of the mask facing the patient.
  • FIG. 2 is a perspective showing the exterior of the small mask, that is, the side facing away from the patient.
  • FIG. 1 shows the small mask with a soother device orifice 40 .
  • FIG. 3 shows the soother device with the optional cuttable section 42 .
  • FIG. 5 is a cross section of the small mask, as if sliced vertically down the middle.
  • FIG. 6 is a front elevation of the small mask.
  • FIGS. 7 , 8 , 11 , and 12 An embodiment of a medium size mask is shown in FIGS. 7 , 8 , 11 , and 12 .
  • FIG. 11 is a bottom elevation of the medium mask
  • FIG. 12 is a side elevation of the medium mask.
  • FIGS. 10 and 11 show perspective views of the large size mask.
  • the inventive masks align the airway 20 with the nose. This substantially reduces the dead space in the mask and allows the face of the mask in front of the nose to be used as a position to insert a soother device.
  • the mask has a contoured edge 60 , with at least one inflection point with an angle of 10° or more. These are the angles 90 - b , 90 - c , and 90 - d in FIGS. 11 and 12 . In fact, there are several such inflection points in the instant mask designs. Thus, angle b is on the bottom that fits over the chin. Angles c and d are on each side covering the cheek area of the face.
  • the facial study also provided data for the design of the body 10 of the mask, by providing scientific and quantified topographic facial dimensions.
  • the 3D design conforms to the contour of the edges to maximize the fit and seal, and minimize the interior dead space of the mask.
  • Ventral face 44 shown most clearly in FIG. 4 over the mouth section of the mask, is contoured according to these requirements to fit closely to the profile if a human face, minimizing the dead space in the mask.
  • the inventive masks fit tightly yet comfortably to the face.
  • the patient is not burdened with a large uncomfortable plastic object on their face, but rather a much smaller and comfortable device.
  • the inventive masks have a lip 60 comprising a soft, pliable plastic silicone or other elastomer material.
  • the lip may be angled outward, away from the interior of the mask. An outward orientation of the lip helps to minimize the interior dead space of the mask, and contributes to the comfort of the fit and to the seal of the mask.
  • the inventive mask may be fabricated as a unitary molded plastic article, so the edge region of the mask in contact with skin and forming a seal will be a thinner (i.e., less thick) region of the mask, compared to the main body of the mask.
  • a soother device such as a pacifier must be inserted into the orifice prior to use of the mask.
  • the flexible flaps of the duckbill orifice make a good seal around the nipple of the pacifier minimizing air leakage at the soother device orifice.
  • the child's own pacifier may be used, which is simply inserted into the orifice 40 , so the child is most comfortable with her/his own pacifier.
  • the sucking action in the pacifier connected to the mask should draw the face of the mask closer to the child's face, further minimizing dead space and enhancing the seal of the mask on the child's face.
  • the soother device orifice may further be situated in a pliable and flexible region 50 of the mask.
  • the purpose of this flexible region is to allow a soother device inserted into the orifice to float slightly, so the soother device can be positioned comfortable in the mouth of the child.
  • the device should be able to move approximately 5 mm up or down (i.e., closer or farther from the nose) without seriously deforming the main body of the mask which could cause a breach in the seal of lip 60 around the face of the patient.
  • the region 50 is a bellows-shaped region of the mask (when viewed in cross section). Region 50 may be thinner than the main body of the mask. The thin section and the bellow shape give this area its flexibility.
  • the mask may include a breakable or cuttable section that is sealed as packaged for the user, but can be broken or cut by a caregiver to insert a soother device. If this breakable section is not cut, there is no soother device orifice in the mask. If it is cut or broken, an orifice for a soother device is created.
  • the mask may lack a soother device orifice, yet still have the anthropometrically designed ergonomically contoured shape characteristic of the inventive masks.
  • the masks may have a combined visual seal indicator and exhalation valve 30 to assist a caregiver monitoring the quality of the seal.
  • the seal indicator may have a plastic or elastomer flap 32 (shown in FIG. 5 ) that moves from a first position to a second position in response to an inhalation or exhalation.
  • the indicator apparatus is configured so this movement is readily apparent, for example by the use of different colors on either side of flap 32 .
  • the flap is in a first resting position that is also the position during inhalation. During exhalation, the flap moves to a second open position (displaying, for example a different color to an observer) during exhalation as air is exhaled from the mask.
  • the movement of the flap is also critically dependent on the quality of the seal of the mask on the face of the patient. If the mask is poorly sealed, the flap won't move and the caretaker or patient will know that there is a leak around the edge of the mask.
  • the purpose of the visual seal indicator is primarily to indicate a secured seal, showing that the seal is effective at preventing leakage of air around the edge of the mask.
  • the visual seal indicator is a discrete component that fits into an opening on the top of the mask, near the nostrils of the patient.
  • the indicator may have a rigid plastic frame with a movable indicator flap.
  • the flap may be configured to open away from the face of the user, so that any exhaled active drug is vented in a direction away the face and eyes of the patient.
  • a method of administering an inhaled medication to a patient, in particular an aerosolized medication wherein the inventive mask is placed over the mouth and nose of a patient.
  • the patient may be from age birth to about five years old. In an embodiment, the patient may be over the age of five years. In an embodiment, the patient is age birth to about five years and the mask has a soother device orifice and the method includes administering an inhaled medication to a child while the child is sucking on a soother device. In an embodiment, the patient is age birth to about five years and the mask has a soother device orifice and the method includes administering an inhaled medication to a child while no soother device is employed.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Emergency Medicine (AREA)
  • Multimedia (AREA)
  • Pediatric Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US13/494,458 2011-06-17 2012-06-12 Mask for the administration of inhaled drugs Abandoned US20120318265A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/494,458 US20120318265A1 (en) 2011-06-17 2012-06-12 Mask for the administration of inhaled drugs
US16/423,728 US11129947B2 (en) 2011-06-17 2019-05-28 Mask for administration of inhaled medication
US16/518,652 US10675420B2 (en) 2011-06-17 2019-07-22 Mask for administration of inhaled medication
US16/863,684 US10729859B1 (en) 2011-06-17 2020-04-30 Mask for administration of inhaled medication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161498384P 2011-06-17 2011-06-17
US13/494,458 US20120318265A1 (en) 2011-06-17 2012-06-12 Mask for the administration of inhaled drugs

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US11129947B2 (en) 2021-09-28
US20190275266A1 (en) 2019-09-12
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US20190344024A1 (en) 2019-11-14
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CA3051326C (en) 2022-01-11
US10675420B2 (en) 2020-06-09
WO2012173992A1 (en) 2012-12-20
AU2012271836A1 (en) 2014-02-06
BR112013032370A2 (pt) 2017-01-03
US10729859B1 (en) 2020-08-04
EP2720743A1 (en) 2014-04-23
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AU2012271836C1 (en) 2017-08-17

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