Mouth Closing Device
20180008452 · 2018-01-11
Inventors
Cpc classification
International classification
A61M16/00
HUMAN NECESSITIES
Abstract
The present invention relates to a device to urge the mouth closed during sleep to reduce snoring and/or treat sleep disorders such as sleep apnea. In one aspect, the device includes a jaw-blocking object that is secured beneath the chin of a user and also contacting the clavicular region of the upper chest area. In another aspect, a device of the invention includes a jaw-blocking object in combination with a CPAP mask and headgear for use with a CPAP system.
Claims
1. A mouth-closing device comprising: a. a jaw blocking object having a geometric shape other than bent tubular, having a first region on the surface thereof that contacts the underside of a user's chin, and a second region that contacts the user's upper chest clavicular region adapted to prevent the mouth from opening; and b. a harness assembly adapted to secure the jaw blocking object to the user.
2. A mouth-closing device as in claim 1, wherein the shape of the jaw blocking object is selected from spherical, hemispherical, oblate spherical, prolate spherical, cuboid, cylindrical, and sectioned cylindrical.
3. A mouth-closing device as in claim 2, wherein the jaw blocking object is fabricated from plastic, rubber, silicone, fabric, metal, or leather.
4. A mouth-closing device as in claim 3, wherein the jaw blocking object has a hollow interior.
5. A mouth-closing device as in claim 4, wherein the harness assembly includes a pocket adapted to receive the jaw blocking object, and at least two straps connected to said pocket.
6. A mouth-closing device as in claim 5, further comprising a CPAP mask selected from nasal pillow, nasal mask, nasal prong, full-face mask, hybrid mask, and total face mask.
7. A mouth-closing device as in claim 6 further comprising a CPAP headgear.
8. A mouth-closing device as in claim 7, wherein said at least two straps are adapted to be coupled to the CPAP mask or a headgear.
9. A mouth-closing device for use with a CPAP treatment system, comprising: a. a spherically-shaped jaw blocking object adapted to be placed under the chin of a user to urge the mouth closed during CPAP treatment said blocking object consisting essentially of first and second contact regions on the surface thereof that make contact with the user; b. a harness assembly for securing the jaw blocking object under the chin that includes a receiving portion to house the jaw blocking object, said receiving portion having ends, and at least one strap attached to each of said receiving portion ends, said at least one strap having a free end that is adapted to be coupled to a CPAP mask or headgear; and wherein the device does not contact the user's face above the jaw line.
10. A mouth-closing device as in claim 9 wherein said sphere-shaped jaw blocking object is from 1 to 5 inches in diameter and is fabricated from plastic, silicone, leather, wood, foam, metal, or rubber.
11. A mouth-closing device as in claim 10 wherein said jaw blocking object has a hollow interior.
12. A mouth-closing device as in claim 11 wherein said receiving portion is a pocket that partially or completely encloses the jaw blocking object, and wherein said at least one strap free end is reversibly couplable to the CPAP mask or headgear by a snap, buckle, or VELCRO®.
13. A mouth-closing device as in claim 12 further comprising a CPAP mask.
14. A mouth-closing device as in claim 13 wherein said CPAP mask is selected from nasal pillow, nasal mask, nasal prong, full-face mask, hybrid mask, and total face mask.
15. A method for treating sleep apnea in a patient in need thereof using a CPAP system comprising: a. placing a CPAP mask and headgear on the patient; b. securing a jaw blocking object to the CPAP mask and headgear such that the jaw blocking object rests beneath the chin and makes contact with the upper clavicular region of the patient to urge the patient's mouth closed during treatment; and c. connecting the CPAP mask to a CPAP machine.
16. A method as in claim 15 wherein said jaw blocking object has a shape selected from spherical, hemispherical, oblate spherical, prolate spherical, cuboid, cylindrical, and sectioned cylindrical.
17. A method as in claim 16 wherein said patient is suffering from obstructive sleep apnea.
18. A method as in claim 17 wherein the patient experiences improved sleep and reduced gastric insufflation.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0041] As used herein the term “CPAP” refers to Continuous Positive Airway Pressure.
[0042] As used herein the term “CPAP system” refers to a breathing machine, a facial mask, and headgear through which continuous positive airway pressure is provided to a patient suffering from a sleep disorder such as sleep apnea.
[0043] As used herein, the term “CPAP mask” refers to a mask worn when using a CPAP system including any number of known and/or commercially available devices including nasal pillows, nasal masks, full-face masks, nasal prongs, hybrids, oral devices, and total face masks. A CPAP mask is generally secured to a user's head with a strap assembly or a CPAP headgear.
[0044] As used herein, the term “harness assembly” refers to one or a plurality of straps, preferably adjustable, adapted for securing a jaw-stop member of the invention directly to a user's head, or to a CPAP mask and/or headgear.
[0045] As used herein, the terms “jaw stop” or “jaw block” or “jaw blocking object” are used interchangeably to refer to an aspect of a device of the invention. A jaw stop is a solid or hollow object having a volume, of any size and geometric shape other than bent tubular, adapted to generally occupy the MNC region beneath a user's chin to act as an impediment to jaw opening. The jaw stop makes contact beneath a user's chin and at the upper chest area thereby blocking movement of the jaw while keeping the head substantially vertically aligned with the neck and upper spine. A jaw stop of the invention does not make contact with a user's face above the jaw line or with the facial flesh on the sides of the chin.
[0046] As used herein the term “sleep apnea” refers to any sleep disorder characterized by bouts of breathing stops during sleep, including obstructive sleep apnea (OSA) and central sleep apnea (CSA). The terms may also include other conditions sometimes associated with sleep apnea such as temporomandibular joint dysfunction (TMJ).
[0047] As used herein, the term “mandible neck curve” or “MNC” is used to describe the curvilinear space into which a jaw stop of the invention is placed. The MNC begins at the chin on the underside of the jaw, and proceeds generally along the midline down the front side of the neck to the suprasternal notch region at the upper chest. A jaw stop of the invention is placed in the MNC to block or prevent the chin from dropping, thereby urging the mouth to a closed position. The terms “upper MNC” or “upper region of the MNC” may sometimes be used to refer specifically to the region beneath the chin, and “lower MNC” or “lower region of the MNC” may sometimes be used to refer specifically to the region at or near the suprasternal notch.
[0048] As used herein, the term “treat” or “treatment” refers to application of a device of the invention to reduce or eliminate snoring, breathing stops, mouth-breathing, and air swallowing, as well as to maintain an open airway, when used with or without a CPAP system, in treating sleep disorders including sleep apnea.
[0049] As used herein, the term “suprasternal notch” or “suprasternal notch region” refers to the region at the base of the neck characterized by a visible depression above the clavicle and collar bone. A portion of a jaw stop of the invention preferably makes contact in this region, or the region immediately surrounding the suprasternal notch and clavicle.
[0050] Without intending to be bound by any particular theory, it is believed that a jaw-blocking device of the invention improves on prior mouth-closing devices such as chin straps by providing an obstructive object directly beneath the chin to more effectively urge the mouth closed during sleep while at the same time keeping the head from rolling forward. Prior devices such as chin straps rely solely on a cup and strap assembly to apply a pulling force against the chin. Such devices are often ineffective because the force generated by the cup and strap assembly includes a posterior-directed component that tends to pull the jaw inward (i.e. in a posterior direction), thereby encouraging the mouth to open and defeating the intended purpose.
[0051] By contrast to the prior art, a device of the present invention includes a jaw-blocking object placed directly beneath the chin and generally occupying a user's MNC region without contacting the facial region above the jaw line. The jaw blocking object provides a substantially vertical force against the underside of the chin region, and an additional generally anterior force generated at the suprasternal notch contact region of the jaw stop. As a consequence of these combined force vectors, a device of the invention is more effective in urging the mouth to a closed position, and in preventing the head from rotating forward, thereby further promoting an open airway. With the jaw urged to a closed position, air leakage is reduced during CPAP treatment, the airway remains open, and gastric insufflation is reduced or eliminated.
[0052] Referring now to the drawings, preferred embodiments of the invention will now be described in more detail. For purposes of comparison with the prior art,
[0053] A device of the invention includes a jaw-blocking object, also referred to herein as a “jaw stop”, which urges the jaw to a closed position by being an impediment within the MNC region to block jaw movement, and by applying a vertically directed force from beneath the chin and from the upper chest at the clavicular region. In addition to urging the mouth closed, an additional benefit of a device of the invention is that it prevents the head from rotating forward, thereby keeping the airway open. A jaw stop can be of any size and/or geometric shape other than bent tubular to comfortably fit in the MNC region of a user to impede jaw opening and forward head rotation, having a symmetrical or asymmetrical configuration, and one or more convex or concave surfaces. A jaw stop can be solid or have a hollow interior.
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[0055] Referring now to
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[0057] A jaw stop of the invention can have any geometric shape or configuration other than bent tubular including but not limited to cuboid, cylindrical, spherical, hemispherical, ellipsoid, prolate spheroid, oblate spheroid, polygonal spheroid, and any other polygonal shape. Preferably the shape is symmetrical and has curved surfaces. The most preferred shape is spherical. When placed in the MNC region during use, the jaw stop remains below the jaw line.
[0058] Exemplary but non-exclusive jaw stops having different shapes are presented in
[0059] Particularly preferred is a sphere-shaped or ball-shaped jaw stop which comports well with the concave curvature of the MNC region. Additionally, the arcuate surface of a sphere is well adapted to allow for some side-to-side head rotation which provides additional comfort during use.
[0060] As provided in Table 1, depending on the shape of a jaw-blocking object, the contact regions can be located anywhere on the surface of the object, or at certain defined regions. For spherically-shaped objects, owing to the symmetry, the contact regions are generally located anywhere on the curved surface. For other shapes such as those illustrated in
TABLE-US-00001 TABLE 1 Exemplary jaw blocking objects and location of contact regions. Location of Contact Region Jaw Stop Shape Figure Under-chin Suprasternal notch Sphere 4A Anywhere on surface Anywhere on surface Prolate sphere 4C On curved surface On curved surface between ends defined between ends defined by axis of rotation by axis of rotation Oblate sphere 4D On curved surface On curved surface between ends defined between ends defined by axis of rotation by axis of rotation Hemisphere 4E Flat face Rounded bottom Cuboid 4G Flat face Flat face Cylinder 4H Curved surface Curved surface Sectional cylinder 4I Flat top Curved bottom Sectional cylinder 4J Chin notch Curved bottom with chin notch
[0061] In some embodiments of a jaw blocking object, one or more of the contact region(s) have a curved surface, preferably convex, which facilitates rolling and side-to-side head movement when the device is worn.
[0062] A jaw stop can be any size that comfortably fits in the MNC region beneath the jaw to urge the mouth closed. Generally, length, width, and depth dimensions would be sized smaller to fit children and larger to fit adults. By way of example, for a spherically-shaped jaw stop, an appropriate diameter would generally be in a range of about 1 to about 5 inches, or larger including 1 inch, 2 inches, 3 inches, 4 inches, or 5 inches, and all decimal increments therebetween. Generally, for a small size, the diameter would be from about 1 to about 3 inches, including all whole and fractional integers therebetween; a medium size would be from about 3 to about 4 inches including all whole and fractional integers therebetween; and a large size would be from about 4 to about 5 inches or larger, including all whole and fractional integers therebetween. An appropriate size could be determined by measuring the distance from near the end of the chin of a user to the suprasternal notch (BD in
[0063] A jaw stop can have any desired level of hardness or softness and resistance to deformation. Preferably, the object provides enough resistance to act as an effective barrier to jaw opening while not causing discomfort to the wearer. A jaw stop may be stiff, rigid, or firm, or alternatively, soft and/or flexible or semi-flexible and resilient to deformation. A jaw stop can be fabricated by methods known to the skilled artisan, from any suitable material including but not limited to foam, such as polystyrene, plastic, polyethylene, hard or soft rubber, silicone, wood, metal, woven or nonwoven fabric, leather, or textile. In the preferred embodiment, a jaw stop is hollow and may have perforated walls to reduce weight and increase comfort. The jaw stop can optionally be covered with a soft and/or smooth material such as plastic, leather, neoprene, fabric or the like for added comfort against the skin.
[0064] In an alternative embodiment, a jaw stop comprises an inflatable shape fabricated from any suitable plastic or rubber material including but not limited to vinyl, latex, polyvinyl chloride (PVC), or neoprene, having a valve stem or other means for blowing air into the shape to inflate, or to release air to deflate the shape. An inflatable jaw stop can be fabricated to have any desired shape including, but not limited to, those depicted in
[0065] A mouth-closing device of the invention contemplates use of a jaw stop alone or in combination with a CPAP system. For use with a CPAP system, a jaw blocking device of the invention can be retrofitted to an existing CPAP mask and/or headgear, or alternatively integrated with a CPAP mask and headgear during manufacture of the CPAP equipment.
[0066] In another aspect, the invention relates to a harness assembly for securing a jaw stop to a wearer's head, or to a CPAP mask or CPAP headgear. Any suitable harness assembly or headgear known to the skilled artisan is contemplated for this purpose, including but not limited to, a strap or harness assembly having one or more straps that can be adjusted to fit around a user's head and that engage with the jaw stop. Generally, a harness assembly would bridge over and/or around the wearer's neck or head to secure the jaw stop beneath the chin. The harness assembly may be adapted to couple with a CPAP mask and/or CPAP headgear. A strap or harness assembly can engage with the jaw stop by any suitable means including, but not limited to, by securing one or more strap(s) of a harness or headgear to a portion(s) of the jaw stop, or alternatively to a pocket or other receptacle on the harness suitably configured to receive a jaw stop.
[0067] In one embodiment, a jaw stop is secured to a user's head for stand-alone use without a CPAP system. In another embodiment, a harness assembly is adapted to attach a jaw stop to a CPAP mask or CPAP mask and headgear for use with a CPAP system. Any known and/or commercially available CPAP mask and headgear can be used for this aspect of the invention including nasal pillows, nasal masks, full-face masks, nasal prongs, hybrids, oral devices, and total face masks, and harness assemblies therefor as disclosed, for example, in U.S. Pat. No. 8,701,655, U.S. Pat. No. 8,899,234, U.S. Pat. No. 6,470,886, US 2014/0360505, US 2007/0209663, and U.S. Pat. No. 7,036,508, the entire contents of which are herein incorporated by reference. Suitable commercially available CPAP products are widely available and sold by a number of companies including, for example, 3B Medical (Winterhaven, Fla.), AG Industries (St. Louis, Mo.), and ResMed (Australia). Exemplary but not exclusive CPAP masks include a number of nasal masks having 4-point headgear sold by ResMed such as Mirage SoftGel®, Mirage Quattro®, and Mirage Activa®. It should be understood that this aspect of the invention is intended to include any known and/or commercially available type of CPAP mask and/or headgear.
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[0069] Pocket 114 can be fabricated from any suitable flexible, semi-rigid, or rigid material such as plastic, rubber, wood, leather, or fabric, by means known to the skilled artisan, as a single unit or by joining pieces together, for example, by adhesives, sewing, and the like.
[0070] In another aspect, a device of the invention is adapted to be used alone without a CPAP system. In this aspect, a jaw stop is secured to the head of a user with any type of harness assembly known to the skilled artisan. Referring now to
[0071] Referring now to
[0072] In another aspect of the invention, a device of the invention is used alone to reduce snoring, or in combination with a CPAP system to treat sleep apnea, especially obstructive sleep apnea. For use in reducing snoring, a device including jaw stop and harness assembly is worn without a CPAP system. For treating sleep apnea, a device is used in combination with a CPAP system wherein a user wears the device with a CPAP mask and headgear connected to a CPAP machine to reduce or eliminate the number of nighttime breathing interruptions, improve sleep, and reduce gastric insufflation.
[0073] While the form of the device herein described constitutes a preferred embodiment of the invention, it should be understood that the invention is not limited to the precise form of apparatus or device, and that changes may be made therein without departing from the scope of the invention.
Example 1
Treating Sleep Apnea
[0074] A 30-year old male presents with symptoms of sleep apnea. The patient reports repeated episodes of awakening during the night while gasping for air. He reports feeling tired during the day and sometimes feels bloated in the morning. A medical examination leads to a diagnosis of obstructive sleep apnea (OSA). The patient is prescribed CPAP therapy using a nasal mask. After 1 month of CPAP therapy, the patient reports some reduction in sleep disturbances but feels bloated in the morning. His physician suspects that his mouth has been opening and he has been swallowing air while undergoing CPAP therapy. He recommends use of a mouth-closing device of the present invention to urge the mouth closed and prevent forward head rotation with continued CPAP treatment. The patient begins using a sphere-shaped jaw blocking object in combination with continued CPAP therapy, and after 2 weeks reports substantial improvement in his sleep with fewer air-gasping episodes during the night and no longer feels bloated in the morning.