US3357426A - Adherent face mask having a quick disconnect fitting and disposable components - Google Patents

Adherent face mask having a quick disconnect fitting and disposable components Download PDF

Info

Publication number
US3357426A
US3357426A US425527A US42552765A US3357426A US 3357426 A US3357426 A US 3357426A US 425527 A US425527 A US 425527A US 42552765 A US42552765 A US 42552765A US 3357426 A US3357426 A US 3357426A
Authority
US
United States
Prior art keywords
coupling
face
mask
nose
flap
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US425527A
Inventor
David D Cohen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of California
Original Assignee
University of California
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 University of California filed Critical University of California
Priority to US425527A priority Critical patent/US3357426A/en
Application granted granted Critical
Publication of US3357426A publication Critical patent/US3357426A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • A61M16/0683Holding devices therefor
    • A61M16/0688Holding devices therefor by means of an adhesive
    • 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
    • A61M16/01Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
    • 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
    • A61M16/0666Nasal cannulas or tubing
    • 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
    • A61M2210/00Anatomical parts of the body
    • A61M2210/06Head
    • A61M2210/0618Nose
    • 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
    • A61M2210/00Anatomical parts of the body
    • A61M2210/10Trunk
    • A61M2210/1042Alimentary tract
    • A61M2210/1053Stomach

Definitions

  • the coupling is shallow and of large diameter so as to afford convenient access to the nose and mouth of the wearer during use.
  • the coupling is secured in place on the face by means of a thin, pliable sealing flap detachably secured to the coupling and having a pressure-sensitive adhesive on its face-engaging side.
  • the sealing flap conforms to the contours of the wearers face and adheres to the face to provide an effective seal in positive-pressure operation even when auxiliary equipment such as tubes leading to the nose or mouth are used.
  • the quick disconnect fitting is friction fit onto the coupling portion and is configurated so as to cooperate with the coupling to provide a relatively small breathing chamber.
  • This invention relates to an improved face mask for respiratory use, and more particularly to an inherent mask of this type having a quick disconnect fitting and disposable components.
  • Face masks of the subject type find widespread use in a variety of different applications.
  • they are used to administer certain anesthetics, and in ventilating a patient where the lungthorax system which enables the patent to breathe spontaneously is paralyzed by use of anesthetics.
  • they are widely used in administering intermittent positive pressure breathing therapy to patients having a variety of respiratory disorders.
  • the lungs are inflated under a regulated pressure on the order of ten to sixty centimeters of water. This is normally followed by a passive or negative expiration phase during which the patient is permitted or caused to expire to the atmosphere.
  • the usual practice is to press the mask very tightly against the face, particularly in the relatively raised facial areas in order to insure engagement and sealing in the relatively depressed areas.
  • This practice together with the fact that most masks and their associated fittings are heavy, frequently causes damage to the facial tissue. At the very least, a patient receiving positive pressure therapy is subjected to severe discomfort and tends to become apprehensive.
  • Another object is to provide an improved face mask embodying means for affording a highly effective pressure seal between the mask and the face of the wearer.
  • a related object is to provide a mask of the type described which is light in weight and may be worn comfortably in sealing relationship with the face, notwithstanding substantial irregularities in the facial contour.
  • a further object is to provide a mask of the type described, having a detachable front portion or cap that may be conveniently removed to afford access through a large central opening to the patients nose and mouth without removing the face-engaging sealing assembly of the mask from the face.
  • a still further object is to provide an improved mask capable of accomplishing all of the foregoing objects, yet which is relatively simple in construction and capable of being mass-produced at a low cost.
  • FIGURE 1 is a perspective View of the mask of the invention positioned for use on the face of the wearer;
  • FIGURE 2 is a vertical sectional view through the 4 center of the mask and illustrating it in place on the face;
  • the mask of the invention is designated by the reference numeral It). It includes generally a disposable assembly including a coupling 12 and a sealing flap '14. Detachably connected to the coupling 12 is a closure cap or quick disconnect fitting 16 which, in turn, is adapted for connection by a hose 18 to suitable respiration apparatus (not shown).
  • Effective sealing is achieved with the mask of the invention by making the sealing flap 14 of a thin, pliable material coated on its face-engaging side with a pressuresensitive adhesive 20.
  • a pressuresensitive adhesive 20 Such material must, of course, be relatively impervious to gas, and both the material and the adhesive must be non-contaminating and non-irritating to the patients skin.
  • Various plastic fi ms coated with adhesive have been found to give especially advantageous results. Not only do plastics have the aforementioned desired physical properties, but they are easily pressed into conformity with the facial contours and have a soft, comfortable feel. It will be understood, however, that satisfactory results may be achieved with other materials such as certain papers.
  • the flap 14 may be cut from a flat sheet of film of substantially uniform thickness. It is shaped so that when it is pressed against the face its upper edge is below the eyes and its side and bottom portions extend well out onto the cheeks and, preferably, at least a short distance down under the chin.
  • the coupling 12 embodies a ring-like connecting flange 22 that defines an enlarged central opening in the mask.
  • an annular base flange 24 projects radially outwardly a short distance for connection to the flap 14.
  • At least the connecting flange is formed of a resilient and relatively stiff material in order that it will tend to retain its shape when subjected to external forces.
  • the base flange 24 may, as in the illustrative case, be integral with the connecting flange 22. Forming of the coupling 12 may then be easily accomplished at low cost by molding it from a suitable plastic.
  • the coupling 12 is sized so that when it is positioned centrally on the face it encompasses the nose and mouth and presents an enlarged central opening.
  • the base flange 24 on its perimeter extends across the bridge of the nose below the eyes, then downwardly across the cheeks outwardiy of the edges of the mouth and finally down across the chin.
  • the connecting flange 22 is relatively shallow in height in relation to the width of the opening, so that its outer end is disposed about flush with the end of the patients nose when the mask is positioned for use.
  • the base flange 24 serves as means for attaching theflap 14 to the coupling 12.
  • an aperture 26 is cut in the flap which is just slightly larger in diameter than the maximum outside diameter of the connecting flange 22.
  • the flap 14 is disposed over the flange 22 with its adhesively coated underside in engagement with the upper surface of the flange 24. The adhesive bonds the parts together in a sealed connection.
  • the closure cap 16 includes a central lid 28 and a skirt 30 that depends from the periphery of the lid. Detachable connection of the cap 16 and coupling 12 is accomplished by sizing the parts so that the cap is telescopically re-.
  • the mating surfaces of the skirt 30 and flange 22 are tapered slightly inwardly from bottom to top.
  • the connection becomes progressively tighter.
  • a sealed breathing chamber 32 is provided in the interior of the mask.
  • the lid 28 is then disposed adjacent the upper end of the connecting flange 22. Because of this positioning and in view of the shallow height of the coupling, the volume or dead air space of the chamber 32 is relatively. small. This constitutes an important feature of the present invention since it tends to minimize rebreathing of expired gas. 7
  • the cap 16 like the coupling '12, is formed of a resilient and relatively stiff material.
  • some flexibility is desirable in order to insure the parts conform in shape to one another for good sealing.
  • the parts still must have the desired stiffness in order to insure that they retain their shapes and may be conveniently connected and detached.
  • An outlet fitting 34 is provided in the skirt 30 to pro vide an inlet-outlet passage to the exterior from the breathing chamber 32. Connection of the breathing chamber 32 to the hose 18 is accomplished by pressing the hose onto the fitting. To insure that the opening in the skirt 30 to the fitting 34 is not blocked, the skirt preferably varies in height around its circumference from a maxi mum adjacent the fitting to a minimum at a diametrically opposite position. Such an arrangement enables the volume of the breathing chamber 32 to be kept at a minimum, yet the inlet-outlet passage to open at all times, as shown in FIGUREQ.
  • the mask 10 is supplied with the disposable assembly including the coupling 12 and the flap 14 bonded together in the manner previously described.
  • a paper-like backing 36 is adhered to it.
  • the mask 10 is furnished in different sizes. Since the flap 14 is adapted to readily conform to variations in facial contour, a mask of given size will function entirely satisfactorily on patients with faces of considerably different sizes. Accordingly, the mask of the invention is advantageous from the standpoint that a relatively few sizes will accommodate virtually all patients.
  • a naso-gastric tube 40 is employed. Normally, such a tube would first be inserted and secured in place as by the adhesive tab 42.
  • the coupling 12 is positioned centrally on the frontal portion of the face, as illustrated in FIG- URES 2 and 4. Because of the contours of the face, the base flange normally will not make continuous engagement with the face. Rather, inmost cases, it will engage the bridge of the nose at its upper end and the chin at its lower end.
  • the flap 14 is pressed or wiped firmly against the face so that it adheres thereto.
  • the flap 14 By virtue of being pliable, it readily conforms to variations in facial contour.
  • it may be molded or formed tightly around the tube 40 in the manner shown in FIGURE? to block leakage along it.
  • the flap 14 Since the flap 14 is formed from a flat sheet, while the face curves back away from the oro-nasal area and has many changes in contour, the flap will wrinkle somewhat as it is wiped against the face. However, this in no way detracts from sealing as the material adheres to itself in the wrinkled areas to close off any leakage paths.
  • the base flange 24 is arranged to flex slightly, as in FIGURE 2, to distribute the weight over a relatively broad area of contact with the face so as to reduce the unit pressure. This light weight and limited flexibility of the flange 24, together with the fact that the flap 14 is formed of a soft, pliable material, enables the mask to be worn comfortably even for prolonged periods.
  • the cap 16 is simply detached. As may be seen in FIGURE 4, the relatively large opening in the coupling 12 then affords convenient access. When it is subsequently desired to administer additional gas, the cap is slipped back over the connecting flange. As is apparent, repeated removal and installation of the cap in no way disturbs sealing between the disposable assembly 12, 14 which remains in place.
  • a patient is often taken to a recovery room where oxygen is administered. Should this be the case, the cap 1c is removed and the disposable assembly 12, 14 is left in place as the patient is moved. In the recovery room another cap 16, connected to suitable delivery apparatus, is attached to the connecting flange.
  • the disposable assembly 12, 14 is quickly and easily removed from the patient by peeling the sealing flap 14 off of the face.
  • This assembly which is relatively inexpensive to make, is then disposed, whereas the cap may be kept for subsequent use.
  • the re-usable cap is configurated so as to be readily adapted to be cleaned and sterilized.
  • a face mask comprising:
  • a shallow ring-like coupling arranged to be positioned on the frontal port-ion of the face, said coupling, when so positioned, presenting an enlarged front opening encompassing the nose and mouth for affording convenient access thereto, the width of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
  • a face mask comprising:
  • a shallow coupling formed of a relatively stiff material and arranged to be positioned on the frontal portion of the face, said coupling presenting a front opening encompassing the nose and mouth to afford conveninet access thereto, the width of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
  • a sealing flap formed of a thin, pliable material secured to said coupling and extending outwardly therefrom about its entire perimeter, said flap being adapted to make substantially continuous engagement with the facial area surrounding the nose and mouth;
  • closure means detacha'bly connected to said coupling and cooperating therewith to define a wall portion of a shallow breathing chamber in the interior of the mask;
  • a face mask comprising:
  • a shallow ring-like coupling arranged to be positioned on the frontal portion of the face, said coupling, when so positioned, presenting an enlarged front opening of circular shape encompassing the nose and mouth for affording convenient access thereto, the diameter of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
  • a sealing flap formed of a thin, pliable material secured to said coupling and extending outwardly therefrom about its entire perimeter, said flap being conformable to variations in surface contour so as to engage the facial area surrounding the nose and mouth;
  • a quick disconnect means detachably connected to said coupling and cooperating with said coupling to provide a shallow breathing chamber within said mask, and means including an inlet-outlet passage to the interior of said mask.
  • a face mask comprising:
  • a shallow coupling formed of a resilient and relatively stiff material and including an annular connecting flange of large inside diameter in the region of the nose and mouth in relation to its height and a base flange projecting radially outwardly a short distance from the lower end of said connecting flange, said coupling being adapted to be positioned on the frontal portion of the face with said base flange in engagement therewith and said front opening encompassing 7 8 the nose and mouth for affording convenient access 7.
  • said quick thereto; disconnect means includes a closure cap telescopically rea sealing flap formed of a thin, pliable sheet material ceived in a close sliding fit by said connecting flange, and and secured to said base flange continuously around wherein the engaging wall surfaces of said cap and conthe entire perimeter thereof and extending outwardly 5 meeting flange are tapered inwardly from bottom to top. therefrom, said flap being conformable with varia- 8.
  • said flap being conformable with varia- 8.
  • at least said tions in surface contour so as to engage the facial area closure cap is formed of a transparent material.

Description

Q. 5 m 5 N w 2 m A, H\\\\\\\\\\\\\\\ Q mm n. ap 3H J 9% w W 4 fl D. D. COHEN AND DISPOSABLE COMPONENTS Filed Jan.
Dec. 12, 1967 ADHERENT FACE MASK HAVING A QUICK DISCONNECT F United States Patent Office 3,357,426 Patented Dec. 12, see? ADHERENT FACE MASK HAVING A QUICK DISCONNECT FITTING AND DISPOSA- BLE COMPONENTS David 1). Cohen, Northridge, Calif., assignor to The Regents of the University of California Filed Jan. 14, 1965, Ser. No. 425,527 8 Claims. (Cl. 128205) ABSTRACT OF THE DISCLOSURE A low-cost face mask having a ring-like coupling adapted to be secured in place on the wearers face during use and a cooperating quick disconnect fitting for connection to respiration apparatus. The coupling is shallow and of large diameter so as to afford convenient access to the nose and mouth of the wearer during use. The coupling is secured in place on the face by means of a thin, pliable sealing flap detachably secured to the coupling and having a pressure-sensitive adhesive on its face-engaging side. The sealing flap conforms to the contours of the wearers face and adheres to the face to provide an effective seal in positive-pressure operation even when auxiliary equipment such as tubes leading to the nose or mouth are used. The quick disconnect fitting is friction fit onto the coupling portion and is configurated so as to cooperate with the coupling to provide a relatively small breathing chamber.
This invention relates to an improved face mask for respiratory use, and more particularly to an inherent mask of this type having a quick disconnect fitting and disposable components.
Face masks of the subject type find widespread use in a variety of different applications. In the medical field, by way of example, they are used to administer certain anesthetics, and in ventilating a patient where the lungthorax system which enables the patent to breathe spontaneously is paralyzed by use of anesthetics. Also, they are widely used in administering intermittent positive pressure breathing therapy to patients having a variety of respiratory disorders. Both in ventilating a patient where paralysis is present, and in administering positive pressure therapy, the lungs are inflated under a regulated pressure on the order of ten to sixty centimeters of water. This is normally followed by a passive or negative expiration phase during which the patient is permitted or caused to expire to the atmosphere.
Because of the pressures involved, it will be appreciated that sealing between the mask and the face of the patient is a prime requisite. This is especially true where the lung-thorax system is paralyzed-In such a case, the patients life depends upon receiving positive pressure ventilation. Also, scaling is important when administering anesthetic gases at ambient pressure in order to prevent dilution with air.
Serious sealing problems are encountered in practice, stemming from the fact that facial contours vary greatly from patient to patient. While masks are normally furnished in a few different sizes, it is obviously not feasible to construct them to conform exactly to the contours of a given patient.
To obtain sealing, the usual practice is to press the mask very tightly against the face, particularly in the relatively raised facial areas in order to insure engagement and sealing in the relatively depressed areas. This practice, together with the fact that most masks and their associated fittings are heavy, frequently causes damage to the facial tissue. At the very least, a patient receiving positive pressure therapy is subjected to severe discomfort and tends to become apprehensive.
Such sealing problems are often compounded in the medical field. During surgery, it is often necessary to have tubes and the like, such as a nasogastric tube, leading from the patient to auxiliary equipment. Commonly, such tubes pass between the perimeter of the mask and the face at a fleshy part of the latter, but, at best, it is extremely difficult to obtain sealing around the tubes with masks heretofore available. Moreover, during most surgical procedures, it is necessary to obtain access fre quently to the patients nose and mouth. To gain access, the mask is temporarily removed. Thus, even if the seal is once established, it may be necessary to repeat the time-consuming process.
Another important factor with respect to face masks for medical uses is sanitation. Many of the masks heretofore available have been difficult and, in some cases, impossible to clean satisfactorily. In this connection, it will be appreciated that the optimum situation, insofar as sanitation is concerned, is to provide a mask in which at least the face-engaging portion is disposed after a single use. Various attempts have been made in the past to afford such a mask, but they have been unsuccessful. Problems of inadequate sealing and of prohibitive costs have hampered the development and marketing of such a mask.
In view of the foregoing, it is a primary object of this invention to provide an improved face mask for respiratory use that obviates the problems of the prior art.
Another object is to provide an improved face mask embodying means for affording a highly effective pressure seal between the mask and the face of the wearer.
A related object is to provide a mask of the type described which is light in weight and may be worn comfortably in sealing relationship with the face, notwithstanding substantial irregularities in the facial contour.
A further object is to provide a mask of the type described, having a detachable front portion or cap that may be conveniently removed to afford access through a large central opening to the patients nose and mouth without removing the face-engaging sealing assembly of the mask from the face.
It is a further object of the invention to provide an improved face mask having a face piece of narrow profile, so as to afford a relatively small breathing chamber and thereby minimize re-breathing of expired gas.
It is still another object to provide an improved face mask of the type described capable of effective high pressure applications and of being worn comfortably, and which is further characterized in that it is highly sanitary from the standpoint that its face-engaging assembly is disposed after a single use.
A still further object is to provide an improved mask capable of accomplishing all of the foregoing objects, yet which is relatively simple in construction and capable of being mass-produced at a low cost.
These and other objects, features and advantages of the invention will be better understood by referring to the following detailed description taken in conjunction with the accompanying drawing in which:
FIGURE 1 is a perspective View of the mask of the invention positioned for use on the face of the wearer;
FIGURE 2 is a vertical sectional view through the 4 center of the mask and illustrating it in place on the face;
the mask of the invention with certain parts being cut 3 away and removed to show underlying parts more clearly.
Referring to the drawing and, in particular, to FIG- URES 1 and 2 the mask of the invention is designated by the reference numeral It). It includes generally a disposable assembly including a coupling 12 and a sealing flap '14. Detachably connected to the coupling 12 is a closure cap or quick disconnect fitting 16 which, in turn, is adapted for connection by a hose 18 to suitable respiration apparatus (not shown).
Effective sealing is achieved with the mask of the invention by making the sealing flap 14 of a thin, pliable material coated on its face-engaging side with a pressuresensitive adhesive 20. Such material must, of course, be relatively impervious to gas, and both the material and the adhesive must be non-contaminating and non-irritating to the patients skin. Various plastic fi ms coated with adhesive have been found to give especially advantageous results. Not only do plastics have the aforementioned desired physical properties, but they are easily pressed into conformity with the facial contours and have a soft, comfortable feel. It will be understood, however, that satisfactory results may be achieved with other materials such as certain papers.
The flap 14 may be cut from a flat sheet of film of substantially uniform thickness. It is shaped so that when it is pressed against the face its upper edge is below the eyes and its side and bottom portions extend well out onto the cheeks and, preferably, at least a short distance down under the chin.
The coupling 12 embodies a ring-like connecting flange 22 that defines an enlarged central opening in the mask. At the lower end of the flange 22, an annular base flange 24 projects radially outwardly a short distance for connection to the flap 14. At least the connecting flange is formed of a resilient and relatively stiff material in order that it will tend to retain its shape when subjected to external forces. For convenience of manufacture, the base flange 24 may, as in the illustrative case, be integral with the connecting flange 22. Forming of the coupling 12 may then be easily accomplished at low cost by molding it from a suitable plastic.
Referring to FIGURES 2 and 4, it may be seen that the coupling 12 is sized so that when it is positioned centrally on the face it encompasses the nose and mouth and presents an enlarged central opening. The base flange 24 on its perimeter extends across the bridge of the nose below the eyes, then downwardly across the cheeks outwardiy of the edges of the mouth and finally down across the chin. Preferably, the connecting flange 22 is relatively shallow in height in relation to the width of the opening, so that its outer end is disposed about flush with the end of the patients nose when the mask is positioned for use. By virtue of the large opening afforded by the coupling 12 and its shallow height, convenient access may be had i with the assembly 12, 14 in place to both the nose and mouth.
The base flange 24 serves as means for attaching theflap 14 to the coupling 12. In accomplishing this, an aperture 26 is cut in the flap which is just slightly larger in diameter than the maximum outside diameter of the connecting flange 22. The flap 14 is disposed over the flange 22 with its adhesively coated underside in engagement with the upper surface of the flange 24. The adhesive bonds the parts together in a sealed connection.
The closure cap 16 includes a central lid 28 and a skirt 30 that depends from the periphery of the lid. Detachable connection of the cap 16 and coupling 12 is accomplished by sizing the parts so that the cap is telescopically re-.
ceived in a close-sliding fit on the connecting flange 22. To facilitate installation and removal of the cap and to enhance the seal, the mating surfaces of the skirt 30 and flange 22 are tapered slightly inwardly from bottom to top. Thus, as the cap 16 is pressed firmly down on the coupling, the connection becomes progressively tighter. With such a detachable connection, installation and removal of the cap can be accomplished quickly and easily. Moreover, in most situations, the scaling is entirely adequate. However, in high pressure applications, it may be desir= able to provide additional sealing means.
When the. cap 16 is in place on the coupling and the mask is positioned for use, a sealed breathing chamber 32 is provided in the interior of the mask. As may be seen in FIGURE 2, the lid 28 is then disposed adjacent the upper end of the connecting flange 22. Because of this positioning and in view of the shallow height of the coupling, the volume or dead air space of the chamber 32 is relatively. small. This constitutes an important feature of the present invention since it tends to minimize rebreathing of expired gas. 7
The cap 16, like the coupling '12, is formed of a resilient and relatively stiff material. In this connection, it is to be noted, however, that some flexibility is desirable in order to insure the parts conform in shape to one another for good sealing. Yet, the parts still must have the desired stiffness in order to insure that they retain their shapes and may be conveniently connected and detached. It is further noted that in many applications, particularly in the medical field, it is desirable to be able to observe the nose and mouth when the mask is in place. Thus, it is advantageous to fornr'the cap 16 and, preferably, also the connecting flange 22 of a transparent material.
An outlet fitting 34 is provided in the skirt 30 to pro vide an inlet-outlet passage to the exterior from the breathing chamber 32. Connection of the breathing chamber 32 to the hose 18 is accomplished by pressing the hose onto the fitting. To insure that the opening in the skirt 30 to the fitting 34 is not blocked, the skirt preferably varies in height around its circumference from a maxi mum adjacent the fitting to a minimum at a diametrically opposite position. Such an arrangement enables the volume of the breathing chamber 32 to be kept at a minimum, yet the inlet-outlet passage to open at all times, as shown in FIGUREQ.
The mask 10 is supplied with the disposable assembly including the coupling 12 and the flap 14 bonded together in the manner previously described. In order to protect the adhesive 20' on the underside of the flap 14 prior to using the mask, a paper-like backing 36 is adhered to it. To ready the mask for use, it is simply necessary to remove the backing by peeling it off in the manner shown in FIGURE 5. Removal is facilitated by slitting the backing at a number of locations, as at 38, to divide it into corresponding sections.
In order to accommodate patients with different size faces, the mask 10 is furnished in different sizes. Since the flap 14 is adapted to readily conform to variations in facial contour, a mask of given size will function entirely satisfactorily on patients with faces of considerably different sizes. Accordingly, the mask of the invention is advantageous from the standpoint that a relatively few sizes will accommodate virtually all patients.
Installation of the mask 10 may be quickly and easily acomplished. In surgical use, it is desirable to have auxiliary equipment leading 'to the nose or mouth. Typically, a naso-gastric tube 40 is employed. Normally, such a tube would first be inserted and secured in place as by the adhesive tab 42.
With the protective backing 36 peeled off to expose the adhesive 20, the coupling 12 is positioned centrally on the frontal portion of the face, as illustrated in FIG- URES 2 and 4. Because of the contours of the face, the base flange normally will not make continuous engagement with the face. Rather, inmost cases, it will engage the bridge of the nose at its upper end and the chin at its lower end.
Once the coupling is so positioned, the flap 14 is pressed or wiped firmly against the face so that it adheres thereto. By virtue of being pliable, it readily conforms to variations in facial contour. Moreover, it may be molded or formed tightly around the tube 40 in the manner shown in FIGURE? to block leakage along it. I
Since the flap 14 is formed from a flat sheet, while the face curves back away from the oro-nasal area and has many changes in contour, the flap will wrinkle somewhat as it is wiped against the face. However, this in no way detracts from sealing as the material adheres to itself in the wrinkled areas to close off any leakage paths. I
To supply gas to the patient, it is simply necessary to slip the cap 16, which, in turn, is connected by the hose 18 to auxiliary respiration apparatus, over the connecting flange 22 of the coupling 12. In this condition, illustrated in FIGURES l and 2, the breathing chamber 32 in the interior" of the mask is sealed except for the inlet-outlet passage leading to the respiration apparatus. It is significant to note that scaling in this case is not dependent upon the force exerted by the mask againstthe face. Rather, it is a matter of the sealing flap 14 adhering to the skin. By virtue of the nature of the construction of the mask 10, it is extremely light in weight. Further, it is only the weight of the mask and of a portion of the delivery equipment connected thereto, i.e., the base 18, that is supported on the face. In addition, the base flange 24 is arranged to flex slightly, as in FIGURE 2, to distribute the weight over a relatively broad area of contact with the face so as to reduce the unit pressure. This light weight and limited flexibility of the flange 24, together with the fact that the flap 14 is formed of a soft, pliable material, enables the mask to be worn comfortably even for prolonged periods.
Should it be desirable to obtain access to the nose or month, which is usually the case during a surgical procedure, the cap 16 is simply detached. As may be seen in FIGURE 4, the relatively large opening in the coupling 12 then affords convenient access. When it is subsequently desired to administer additional gas, the cap is slipped back over the connecting flange. As is apparent, repeated removal and installation of the cap in no way disturbs sealing between the disposable assembly 12, 14 which remains in place.
Following surgery, a patient is often taken to a recovery room where oxygen is administered. Should this be the case, the cap 1c is removed and the disposable assembly 12, 14 is left in place as the patient is moved. In the recovery room another cap 16, connected to suitable delivery apparatus, is attached to the connecting flange.
Following use, the disposable assembly 12, 14 is quickly and easily removed from the patient by peeling the sealing flap 14 off of the face. This assembly, which is relatively inexpensive to make, is then disposed, whereas the cap may be kept for subsequent use. In this connection, it will be appreciated that optimum conditions of sanitation are achieved since a new, sterile face-engaging assembly is employed for each patient. On the other hand, the re-usable cap is configurated so as to be readily adapted to be cleaned and sterilized.
While one embodiment of the invention has been illustrated and described in considerable detail, it will be understood that this is only by way of illustration, and that numerous changes in the details or" construction and arrangement may be made without departing from the spirit and scope of the invention. it is further noted in this connection that while the mask has been described as especially adapted for use in a medical environment, it has useful applications in many others, including aviation, industrial and military environments, among others.
I claim:
1. A face mask, comprising:
a shallow ring-like coupling arranged to be positioned on the frontal port-ion of the face, said coupling, when so positioned, presenting an enlarged front opening encompassing the nose and mouth for affording convenient access thereto, the width of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
means on said coupling and adapted for continuous engagement With the face outwardly of the coupling for retaining said coupling so positioned and for establishing and maintaining a sealing relationship between said coupling and the face;
a quick disconnect fitting receivable by said coupling for closing said front opening and cooperating with said coupling to provide a shallow breathing chamher in the interior of said mask;
and means for establishing an inlet-outlet passage from said chamber.
2. A face mask, comprising:
a shallow coupling formed of a relatively stiff material and arranged to be positioned on the frontal portion of the face, said coupling presenting a front opening encompassing the nose and mouth to afford conveninet access thereto, the width of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
a sealing flap formed of a thin, pliable material secured to said coupling and extending outwardly therefrom about its entire perimeter, said flap being adapted to make substantially continuous engagement with the facial area surrounding the nose and mouth;
a pressure-sensitive adhesive on the face-engaging side of said flap for adhering said flap to the face in sealing relationship over the area of such continuous engagement;
closure means detacha'bly connected to said coupling and cooperating therewith to define a wall portion of a shallow breathing chamber in the interior of the mask;
and means on said closure means for establishing an inlet-outlet passage from said chamber.
3. The subject matter of claim 2 further characterized in that said flap is formed from a flat sheet of plastic of substantially uniform thickness.
4. The subject matter of claim 2 including a removable backing adhered to said adhesive on the face-engaging side of said flap for protecting the same prior to use.
5. A face mask, comprising:
a shallow ring-like coupling arranged to be positioned on the frontal portion of the face, said coupling, when so positioned, presenting an enlarged front opening of circular shape encompassing the nose and mouth for affording convenient access thereto, the diameter of said opening in the region of said nose and mouth being substantially greater than the maximum height of said coupling;
a sealing flap formed of a thin, pliable material secured to said coupling and extending outwardly therefrom about its entire perimeter, said flap being conformable to variations in surface contour so as to engage the facial area surrounding the nose and mouth;
means on the face-engaging side of said flap for removably adhering said flap to the face in the area of such engagement and thereby establishing a pressure seal between said coupling and the face;
and a quick disconnect means detachably connected to said coupling and cooperating with said coupling to provide a shallow breathing chamber within said mask, and means including an inlet-outlet passage to the interior of said mask.
6. A face mask, comprising:
a shallow coupling formed of a resilient and relatively stiff material and including an annular connecting flange of large inside diameter in the region of the nose and mouth in relation to its height and a base flange projecting radially outwardly a short distance from the lower end of said connecting flange, said coupling being adapted to be positioned on the frontal portion of the face with said base flange in engagement therewith and said front opening encompassing 7 8 the nose and mouth for affording convenient access 7. The subject matter of claim 6 wherein said quick thereto; disconnect means includes a closure cap telescopically rea sealing flap formed of a thin, pliable sheet material ceived in a close sliding fit by said connecting flange, and and secured to said base flange continuously around wherein the engaging wall surfaces of said cap and conthe entire perimeter thereof and extending outwardly 5 meeting flange are tapered inwardly from bottom to top. therefrom, said flap being conformable with varia- 8. The subject matter of claim 7 wherein at least said tions in surface contour so as to engage the facial area closure cap is formed of a transparent material. surrounding the nose and mouth; means on the face-engaging side of said flap for remov- References Cited ably adhering said flap to the face in the area of such 10 UNITED STATES PATENTS engagement and thereby establishing a pressure seal 1,465,316 8/1923 Rice 128 195 an h i zl z d i s oil h e t riez r d e ta e lf bl connect d to 4/1947 Lambertsen et a1 1282O5 y 6 3,049,121 8/1962 Brumfield et al 128146.2
said coupling and cooperating with said coupling to provide a shallow breathing chamber within said 15 RICHARD A. GAUDET Primary Examinermask, said means including an inlet-outlet passage to the interior of said mask. W. E. KAMM, Assistant Examiner.

Claims (1)

1. A FACE MASK, COMPRISING: A SHALLOW RING-LKE COUPLING ARRANGED TO BE POSITIONED ON THE FRONTAL PORTION OF THE FACE, SAID COUPLING, WHEN SO POSITIONED, PRESENTING AN ENLARGED FRONT OPENING ENCOMPASSING THE NOSE AND MOUTH FOR AFFORDING CONVENIENT ACCESS THERETO, THE WIDTH OF SAID OPENING IN THE REGION OF SAID NOSE AND MOUTH BEING SUBSTANTIALLY GREATER THAN THE MAXIMUM HEIGHT OF SAID COUPLING; MEANS ON SAID COUPLING AND ADAPTED FOR CONTINUOUS ENGAGEMENT WITH THE FACE OUTWARDLY OF THE COUPLING FOR RETAINING SAID COUPLING SO POSITIONED AND FOR ESTABLISHING AND MAINTAINING A SEALING RELATIONSHIP BETWEEN SAID COUPLING AND THE FACE; A QUICK DISCONNECT FITTING RECEIVABLE BY SAID COUPLING FOR CLOSING SAID FRONT OPENING AND COOPERATING WITH SAID COUPLING TO PROIDE A SHALLOW BREATHING CHAMBER IN THE INTERIOR OF SAID MASK; AND MEANS FOR ESTABLISHING AN INLET-OUTLET PASSAGE FROM SAID CHAMBER.
US425527A 1965-01-14 1965-01-14 Adherent face mask having a quick disconnect fitting and disposable components Expired - Lifetime US3357426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US425527A US3357426A (en) 1965-01-14 1965-01-14 Adherent face mask having a quick disconnect fitting and disposable components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425527A US3357426A (en) 1965-01-14 1965-01-14 Adherent face mask having a quick disconnect fitting and disposable components

Publications (1)

Publication Number Publication Date
US3357426A true US3357426A (en) 1967-12-12

Family

ID=23686945

Family Applications (1)

Application Number Title Priority Date Filing Date
US425527A Expired - Lifetime US3357426A (en) 1965-01-14 1965-01-14 Adherent face mask having a quick disconnect fitting and disposable components

Country Status (1)

Country Link
US (1) US3357426A (en)

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918448A (en) * 1971-12-22 1975-11-11 Doris C Mccosker Sanitary face mask
US4224941A (en) * 1978-11-15 1980-09-30 Stivala Oscar G Hyperbaric treatment apparatus
US4226234A (en) * 1979-02-12 1980-10-07 Rescuetech Corporation Respiratory valve face mask structure
US4328797A (en) * 1980-07-23 1982-05-11 Rollins Iii Offord L Naso-gastric oxygen mask
US4377162A (en) * 1980-11-26 1983-03-22 Staver Peter J Facial protective device, and methods of constructing and utilizing same
US4890609A (en) * 1988-06-27 1990-01-02 Wilson Ii Robert H Air-directing apparatus for air mask
US5398674A (en) * 1993-05-17 1995-03-21 Martin; Mark S. Resuscitation aid
US5408995A (en) * 1993-04-16 1995-04-25 Figgie International Inc. Continuous flow passenger oxygen dispensing unit
US5813423A (en) * 1995-11-01 1998-09-29 Kirchgeorg; John Inhalator and/or resuscitator mask adaptable for use with an adult and child
WO1999025410A1 (en) 1997-11-14 1999-05-27 Medisolve Limited A seal for a respiratory mask, and a respiratory mask
US5918598A (en) * 1998-04-10 1999-07-06 Belfer; William A. Strapless respiratory facial mask for customizing to the wearer's face
US6092521A (en) * 1994-06-03 2000-07-25 Cleantec Co., Ltd. Mask maintaining warmth in nasal area
USD431077S (en) * 1999-03-05 2000-09-19 Respironics, Inc. Nasal mask
WO2000069497A1 (en) * 1999-05-19 2000-11-23 Mallinckrodt Inc. Disposable respiratory mask with adhesive skin interface
EP1190731A2 (en) 2000-09-21 2002-03-27 Smiths Group PLC Patient ventilation devices
EP1214896A1 (en) * 2000-12-18 2002-06-19 The Procter & Gamble Company Strapless respiratory face mask
FR2825639A1 (en) 2001-06-07 2002-12-13 Smiths Group Plc MASK FOR GAS ADMINISTRATION
US20030105407A1 (en) * 2001-11-30 2003-06-05 Pearce, Edwin M. Disposable flow tube for respiratory gas analysis
US20030136410A1 (en) * 2002-01-18 2003-07-24 Matich Ronald D. Face mask with seal and neutralizer
USD478660S1 (en) 2002-07-01 2003-08-19 Healthetech, Inc. Disposable mask with sanitation insert for a respiratory analyzer
WO2003076020A2 (en) * 2002-03-08 2003-09-18 Smiths Group Plc Mask apparatus
US20030192547A1 (en) * 1993-11-09 2003-10-16 Cprx Llc CPR mask with compression timing metronome and methods
US6691703B2 (en) * 2001-01-31 2004-02-17 Laerdal Medical Corporation CPR barrier device
US20040089304A1 (en) * 2000-12-18 2004-05-13 Barakat Mohamed Ali Strapless respiratory face mask
US6952605B1 (en) 2000-08-10 2005-10-04 Respironics, Inc. Pneumatic release mechanism for a patient contacting article
US6955650B2 (en) 1999-08-02 2005-10-18 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US20050284479A1 (en) * 2004-06-23 2005-12-29 Dragerwerk Aktiengesellschaft Breathing mask with an adhesive seal
US20070050883A1 (en) * 2002-01-18 2007-03-08 Matich Ronald D Face mask with seal and neutralizer
US20070175479A1 (en) * 2006-01-27 2007-08-02 David Groll Apparatus to provide continuous positive airway pressure
US20070240718A1 (en) * 2006-04-17 2007-10-18 Daly Robert W Method and system for controlling breathing
US20080110469A1 (en) * 2006-11-13 2008-05-15 Stanley Weinberg Strapless flexible tribo-charged respiratory facial mask and method
US20080142015A1 (en) * 2006-01-27 2008-06-19 David Groll Apparatus to provide continuous positive airway pressure
US20080302365A1 (en) * 2007-06-08 2008-12-11 Cohen Eric D Respiratory Mask
US20090014000A1 (en) * 2007-07-13 2009-01-15 Paul Robinson Method and apparatus for hands free ventilation in a hazardous environment
US20090250066A1 (en) * 2008-03-21 2009-10-08 The Periodic Breathing Foundation Llc Nasal interface device
US20090277451A1 (en) * 2006-11-13 2009-11-12 Stanley Weinberg Strapless cantilevered respiratory mask sealable to a user's face and method
US20090293880A1 (en) * 2008-05-29 2009-12-03 Rutan Robert M Liner for Use with Respiratory Mask
US20100018535A1 (en) * 2008-07-24 2010-01-28 Chi-San, LLC Gel cushion pad for mask
US20110005524A1 (en) * 2008-06-04 2011-01-13 Resmed Limited Pad for a mask
US8291906B2 (en) 2008-06-04 2012-10-23 Resmed Limited Patient interface systems
EP2846863A4 (en) * 2012-06-06 2015-03-18 Periodic Breathing Foundation Llc Single use breathing mask with adhesive gasket
US20150090255A1 (en) * 2012-04-17 2015-04-02 Fisher & Paykel Healthcare Limited Tube securement system
US9113667B2 (en) 2008-05-29 2015-08-25 Naturs Design, Inc. Liner for use with respiratory mask
US20150352309A1 (en) * 2012-06-06 2015-12-10 Periodic Breathing Foundation, LLC Single use breathing mask with adhesive gasket
US9308343B2 (en) 2008-02-19 2016-04-12 Circadiance, Llc Respiratory mask with disposable cloth body
US9352111B2 (en) 2007-04-19 2016-05-31 Advanced Circulatory Systems, Inc. Systems and methods to increase survival with favorable neurological function after cardiac arrest
US9675770B2 (en) 2007-04-19 2017-06-13 Advanced Circulatory Systems, Inc. CPR volume exchanger valve system with safety feature and methods
US9724266B2 (en) 2010-02-12 2017-08-08 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US9811634B2 (en) 2013-04-25 2017-11-07 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US9949686B2 (en) 2013-05-30 2018-04-24 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US9981104B1 (en) 2008-02-19 2018-05-29 Circadiance, Llc Full face cloth respiratory mask
US10034991B2 (en) 2011-12-19 2018-07-31 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US10071216B2 (en) 2008-05-29 2018-09-11 Naturs Design, Inc. Liner for use with respiratory mask
WO2018204969A1 (en) * 2017-05-08 2018-11-15 P & M Hebbard Pty Ltd Improvements for respiratory masks
US10265495B2 (en) 2013-11-22 2019-04-23 Zoll Medical Corporation Pressure actuated valve systems and methods
US10512749B2 (en) 2003-04-28 2019-12-24 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
USD901676S1 (en) 2016-09-26 2020-11-10 Fisher & Paykel Healthcare Limited Cannula pad
US11305082B2 (en) 2008-05-29 2022-04-19 Naturs Design, Inc. Liner for use with respiratory mask
WO2022098915A1 (en) * 2020-11-05 2022-05-12 The Regents Of The University Of California Endoscopy mask with air filtration
US11642482B2 (en) 2018-03-27 2023-05-09 Naturs Design, Inc. Liner and retaining member for use with respiratory mask

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1465316A (en) * 1919-12-17 1923-08-21 Ray A Rice Combination inhaler
US2418473A (en) * 1945-04-20 1947-04-08 Christian J Lambertsen Hood for oxygen therapy
US3049121A (en) * 1959-01-20 1962-08-14 Richard S Brumfield Oronasal mask

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1465316A (en) * 1919-12-17 1923-08-21 Ray A Rice Combination inhaler
US2418473A (en) * 1945-04-20 1947-04-08 Christian J Lambertsen Hood for oxygen therapy
US3049121A (en) * 1959-01-20 1962-08-14 Richard S Brumfield Oronasal mask

Cited By (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918448A (en) * 1971-12-22 1975-11-11 Doris C Mccosker Sanitary face mask
US4224941A (en) * 1978-11-15 1980-09-30 Stivala Oscar G Hyperbaric treatment apparatus
US4226234A (en) * 1979-02-12 1980-10-07 Rescuetech Corporation Respiratory valve face mask structure
US4328797A (en) * 1980-07-23 1982-05-11 Rollins Iii Offord L Naso-gastric oxygen mask
US4377162A (en) * 1980-11-26 1983-03-22 Staver Peter J Facial protective device, and methods of constructing and utilizing same
US4890609A (en) * 1988-06-27 1990-01-02 Wilson Ii Robert H Air-directing apparatus for air mask
US5408995A (en) * 1993-04-16 1995-04-25 Figgie International Inc. Continuous flow passenger oxygen dispensing unit
US5398674A (en) * 1993-05-17 1995-03-21 Martin; Mark S. Resuscitation aid
US7174891B2 (en) * 1993-11-09 2007-02-13 Advanced Circulatory Systems, Inc. CPR mask with compression timing metronome and methods
US20030192547A1 (en) * 1993-11-09 2003-10-16 Cprx Llc CPR mask with compression timing metronome and methods
US6092521A (en) * 1994-06-03 2000-07-25 Cleantec Co., Ltd. Mask maintaining warmth in nasal area
US5813423A (en) * 1995-11-01 1998-09-29 Kirchgeorg; John Inhalator and/or resuscitator mask adaptable for use with an adult and child
WO1999025410A1 (en) 1997-11-14 1999-05-27 Medisolve Limited A seal for a respiratory mask, and a respiratory mask
US5918598A (en) * 1998-04-10 1999-07-06 Belfer; William A. Strapless respiratory facial mask for customizing to the wearer's face
USD431077S (en) * 1999-03-05 2000-09-19 Respironics, Inc. Nasal mask
WO2000069497A1 (en) * 1999-05-19 2000-11-23 Mallinckrodt Inc. Disposable respiratory mask with adhesive skin interface
US6341606B1 (en) 1999-05-19 2002-01-29 Mallinckrodt, Inc. Disposable respiratory mask with adhesive skin interface
US6955650B2 (en) 1999-08-02 2005-10-18 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US6952605B1 (en) 2000-08-10 2005-10-04 Respironics, Inc. Pneumatic release mechanism for a patient contacting article
EP1190731A2 (en) 2000-09-21 2002-03-27 Smiths Group PLC Patient ventilation devices
WO2002049467A1 (en) * 2000-12-18 2002-06-27 Procter & Gamble Strapless respiratory face mask
US7152601B2 (en) 2000-12-18 2006-12-26 Mohamed Ali Barakat Strapless respiratory face mask
EP1214896A1 (en) * 2000-12-18 2002-06-19 The Procter & Gamble Company Strapless respiratory face mask
US20040089304A1 (en) * 2000-12-18 2004-05-13 Barakat Mohamed Ali Strapless respiratory face mask
US6691703B2 (en) * 2001-01-31 2004-02-17 Laerdal Medical Corporation CPR barrier device
FR2825639A1 (en) 2001-06-07 2002-12-13 Smiths Group Plc MASK FOR GAS ADMINISTRATION
GB2379886B (en) * 2001-06-07 2004-08-18 Smiths Group Plc Face masks
US6851429B2 (en) 2001-06-07 2005-02-08 Smiths Group Plc Face masks
US20030105407A1 (en) * 2001-11-30 2003-06-05 Pearce, Edwin M. Disposable flow tube for respiratory gas analysis
US7017577B2 (en) * 2002-01-18 2006-03-28 Matich Ronald D Face mask with seal and neutralizer
US20070050883A1 (en) * 2002-01-18 2007-03-08 Matich Ronald D Face mask with seal and neutralizer
US20030136410A1 (en) * 2002-01-18 2003-07-24 Matich Ronald D. Face mask with seal and neutralizer
WO2003076020A3 (en) * 2002-03-08 2003-11-06 Smiths Group Plc Mask apparatus
US7152602B2 (en) 2002-03-08 2006-12-26 Smiths Group Plc Mask apparatus
WO2003076020A2 (en) * 2002-03-08 2003-09-18 Smiths Group Plc Mask apparatus
US20050121030A1 (en) * 2002-03-08 2005-06-09 Timothy Bateman Mask apparatus
AU2003208470B2 (en) * 2002-03-08 2008-07-17 Smiths Group Plc Mask apparatus
USD478660S1 (en) 2002-07-01 2003-08-19 Healthetech, Inc. Disposable mask with sanitation insert for a respiratory analyzer
US10512749B2 (en) 2003-04-28 2019-12-24 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US20050284479A1 (en) * 2004-06-23 2005-12-29 Dragerwerk Aktiengesellschaft Breathing mask with an adhesive seal
US20080142015A1 (en) * 2006-01-27 2008-06-19 David Groll Apparatus to provide continuous positive airway pressure
US20070175479A1 (en) * 2006-01-27 2007-08-02 David Groll Apparatus to provide continuous positive airway pressure
US8485181B2 (en) 2006-04-17 2013-07-16 The Periodic Breathing Foundation, Llc Method and system for controlling breathing
US20070255160A1 (en) * 2006-04-17 2007-11-01 Daly Robert W Method and system for controlling breathing
US20070240718A1 (en) * 2006-04-17 2007-10-18 Daly Robert W Method and system for controlling breathing
US8074646B2 (en) 2006-04-17 2011-12-13 Daly Robert W Method and system for controlling breathing
US20110186050A1 (en) * 2006-04-17 2011-08-04 Daly Robert W Method and System for Controlling Breathing
US7900626B2 (en) 2006-04-17 2011-03-08 Daly Robert W Method and system for controlling breathing
US20090277451A1 (en) * 2006-11-13 2009-11-12 Stanley Weinberg Strapless cantilevered respiratory mask sealable to a user's face and method
US20080110469A1 (en) * 2006-11-13 2008-05-15 Stanley Weinberg Strapless flexible tribo-charged respiratory facial mask and method
US11020313B2 (en) 2007-04-19 2021-06-01 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US10478374B2 (en) 2007-04-19 2019-11-19 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US9352111B2 (en) 2007-04-19 2016-05-31 Advanced Circulatory Systems, Inc. Systems and methods to increase survival with favorable neurological function after cardiac arrest
US11679061B2 (en) 2007-04-19 2023-06-20 Zoll Medical Corporation Systems and methods to increase survival with favorable neurological function after cardiac arrest
US9675770B2 (en) 2007-04-19 2017-06-13 Advanced Circulatory Systems, Inc. CPR volume exchanger valve system with safety feature and methods
US20080302365A1 (en) * 2007-06-08 2008-12-11 Cohen Eric D Respiratory Mask
US20090014000A1 (en) * 2007-07-13 2009-01-15 Paul Robinson Method and apparatus for hands free ventilation in a hazardous environment
US9308343B2 (en) 2008-02-19 2016-04-12 Circadiance, Llc Respiratory mask with disposable cloth body
US10980963B1 (en) 2008-02-19 2021-04-20 Circadiance Llc Cloth respiratory mask
US9981104B1 (en) 2008-02-19 2018-05-29 Circadiance, Llc Full face cloth respiratory mask
US20090250066A1 (en) * 2008-03-21 2009-10-08 The Periodic Breathing Foundation Llc Nasal interface device
US8381732B2 (en) 2008-03-21 2013-02-26 The Periodic Breathing Foundation, Llc Nasal interface device
US8365733B2 (en) * 2008-05-29 2013-02-05 Rutan Robert M Liner for use with respiratory mask
US10071216B2 (en) 2008-05-29 2018-09-11 Naturs Design, Inc. Liner for use with respiratory mask
US9113667B2 (en) 2008-05-29 2015-08-25 Naturs Design, Inc. Liner for use with respiratory mask
US11305082B2 (en) 2008-05-29 2022-04-19 Naturs Design, Inc. Liner for use with respiratory mask
US20090293880A1 (en) * 2008-05-29 2009-12-03 Rutan Robert M Liner for Use with Respiratory Mask
US20110005524A1 (en) * 2008-06-04 2011-01-13 Resmed Limited Pad for a mask
US9149594B2 (en) 2008-06-04 2015-10-06 Resmed Limited Patient interface systems
US10512745B2 (en) 2008-06-04 2019-12-24 RedMed Pty Ltd Patient interface systems
US9901699B2 (en) 2008-06-04 2018-02-27 Resmed Limited Pad for a mask
US11369766B2 (en) 2008-06-04 2022-06-28 Resmed Pty Ltd. Patient interface systems
US8291906B2 (en) 2008-06-04 2012-10-23 Resmed Limited Patient interface systems
CN105126222A (en) * 2008-06-04 2015-12-09 瑞思迈有限公司 Patient interface system
US11013878B2 (en) 2008-06-04 2021-05-25 ResMed Pty Ltd Pad for a mask
US10245404B2 (en) 2008-06-04 2019-04-02 Resmed Limited Patient interface systems
US20100018535A1 (en) * 2008-07-24 2010-01-28 Chi-San, LLC Gel cushion pad for mask
US9999738B2 (en) 2008-07-24 2018-06-19 Resmed Limited Gel cushion pad for mask
US11583645B2 (en) 2009-06-19 2023-02-21 Zoll Medical Corporation Vacuum and positive pressure ventilation systems and methods for intrathoracic pressure regulation
US11123261B2 (en) 2010-02-12 2021-09-21 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US9724266B2 (en) 2010-02-12 2017-08-08 Zoll Medical Corporation Enhanced guided active compression decompression cardiopulmonary resuscitation systems and methods
US11654253B2 (en) 2011-12-19 2023-05-23 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US10034991B2 (en) 2011-12-19 2018-07-31 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US10874809B2 (en) 2011-12-19 2020-12-29 Zoll Medical Corporation Systems and methods for therapeutic intrathoracic pressure regulation
US11471380B2 (en) 2012-04-17 2022-10-18 Fisher & Paykel Healthcare Limited Tube securement system
US10449122B2 (en) * 2012-04-17 2019-10-22 Fisher & Paykel Healthcare Limited Tube securement system
AU2020202199B2 (en) * 2012-04-17 2021-09-30 Fisher & Paykel Healthcare Limited A tube securement system
US20150090255A1 (en) * 2012-04-17 2015-04-02 Fisher & Paykel Healthcare Limited Tube securement system
US20150352309A1 (en) * 2012-06-06 2015-12-10 Periodic Breathing Foundation, LLC Single use breathing mask with adhesive gasket
EP2846863A4 (en) * 2012-06-06 2015-03-18 Periodic Breathing Foundation Llc Single use breathing mask with adhesive gasket
JP2015518774A (en) * 2012-06-06 2015-07-06 ザ ペリオディック ブリージング ファウンデーション, インコーポレイテッド Disposable respirator with adhesive gasket
US9811634B2 (en) 2013-04-25 2017-11-07 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US11488703B2 (en) 2013-04-25 2022-11-01 Zoll Medical Corporation Systems and methods to predict the chances of neurologically intact survival while performing CPR
US10835175B2 (en) 2013-05-30 2020-11-17 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US9949686B2 (en) 2013-05-30 2018-04-24 Zoll Medical Corporation End-tidal carbon dioxide and amplitude spectral area as non-invasive markers of coronary perfusion pressure
US10265495B2 (en) 2013-11-22 2019-04-23 Zoll Medical Corporation Pressure actuated valve systems and methods
USD901676S1 (en) 2016-09-26 2020-11-10 Fisher & Paykel Healthcare Limited Cannula pad
WO2018204969A1 (en) * 2017-05-08 2018-11-15 P & M Hebbard Pty Ltd Improvements for respiratory masks
US11642482B2 (en) 2018-03-27 2023-05-09 Naturs Design, Inc. Liner and retaining member for use with respiratory mask
WO2022098915A1 (en) * 2020-11-05 2022-05-12 The Regents Of The University Of California Endoscopy mask with air filtration

Similar Documents

Publication Publication Date Title
US3357426A (en) Adherent face mask having a quick disconnect fitting and disposable components
US5918598A (en) Strapless respiratory facial mask for customizing to the wearer's face
US2540567A (en) Respiratory facial mask
US4050457A (en) Sanitary mouth-to-mouth shield
US6196223B1 (en) Strapless respiratory facial mask for customizing to the wearer's face
US4377162A (en) Facial protective device, and methods of constructing and utilizing same
AU708804B2 (en) Facial ventilation mask, and a piece and a method for its manufacture
JP4762461B2 (en) Patient ventilator
US3330273A (en) Oro-nasal face mask with improved sealing cuff
US6968844B2 (en) Mask cover
US4337767A (en) Disposable anesthesia mask cover
US2254854A (en) Anesthetic administering device
EP0288937A2 (en) Disposable breathing mask
US5819728A (en) Gas treatment hood
US5743256A (en) Nostril closure means
JPH06508272A (en) breathing face mask
JPH06510444A (en) anesthesia mask for infants
US20180264221A1 (en) Respiration mask interface seal
AU2015200443B1 (en) Ventilation mask
CN205055091U (en) Atomizer and respirator thereof
US5095898A (en) Resuscitation aid
CN209996976U (en) 3d printing medical mask and noninvasive positive airway pressure respirator composed of same
WO2022253201A1 (en) Artificial respiration apparatus for use in first aid
US20220152433A1 (en) Reusable filtering face mask
WO2021174692A1 (en) Novel medical face mask having replaceable filter system