Abstract: Devices for nasal insertion may include an open-ended tubular element which extends along a central tube axis between a first end and a second end, the first end being larger than the second end, and in which the tubular element includes at least one spiral strut extending from the first end to the second end, and/or a nodule having an internal face, a rounded external face, and a stalk extending from the internal face and terminating in an anchor sufficiently larger than a receptacle in the tubular element and sufficiently deformable as to be pressed through the receptacle to affix the nodule to the tubular element.

Abstract: A nasal insert may include a wall in the shape of a tube, the wall including a first end defining a first orifice and a second end defining a second orifice. The first end may have a diameter, diagonal measurement, or cross-sectional area larger than that of the second end. The first end may define at least one break in the wall, so that the first end incompletely encircles the first orifice. The second end may completely encircle the second orifice.

Abstract: A nasal breathing assist device includes one or two open-ended tubular elements each extending along a central tube axis between a relatively large first end and a relatively small second end, and at least one non-resilient tab extends from the first end toward the second end of the tubular element. In embodiments with two tubular elements, a coupler element extends between the first ends of the tubular elements. Each tubular element may further include a liner-shaped filter having a liner portion extending along a central axis between a relatively large end and a relatively small end, and a filter medium spanning at least one of the relatively large end and the relatively small end. The filter is adapted to snap-fit in the tubular element. The tubular element may further include at least one stiffening element affixed to the tubular element.

Abstract: A nasal insert may include a wall in the shape of a tube, the wall including a first end defining a first orifice and a second end defining a second orifice. The first end may have a diameter, diagonal measurement, or cross-sectional area larger than that of the second end. The first end may define at least one break in the wall, so that the first end incompletely encircles the first orifice. The second end may completely encircle the second orifice.

Abstract: A nasal breathing assist device includes one or two open-ended tubular elements each extending along a central tube axis between a relatively large first end and a relatively small second end, and at least one non-resilient tab extends from the first end toward the second end of the tubular element. In embodiments with two tubular elements, a coupler element extends between the first ends of the tubular elements. Each tubular element may further include a liner-shaped filter having a liner portion extending along a central axis between a relatively large end and a relatively small end, and a filter medium spanning at least one of the relatively large end and the relatively small end. The filter is adapted to snap-fit in the tubular element. The tubular element may further include at least one stiffening element affixed to the tubular element.

Abstract: Devices for nasal insertion may include an open-ended tubular element which extends along a central tube axis between a first end and a second end, the first end being larger than the second end, and in which the tubular element includes at least one spiral strut extending from the first end to the second end, and/or a nodule having an internal face, a rounded external face, and a stalk extending from the internal face and terminating in an anchor sufficiently larger than a receptacle in the tubular element and sufficiently deformable as to be pressed through the receptacle to affix the nodule to the tubular element.

Abstract: A nasal insert may include a wall in the shape of a tube, the wall including a first end defining a first orifice and a second end defining a second orifice. The first end may have a diameter, diagonal measurement, or cross-sectional area larger than that of the second end. The first end may define at least one break in the wall, so that the first end incompletely encircles the first orifice. The second end may completely encircle the second orifice.

Abstract: A device for nasal insertion may include an open-ended tubular element. The tubular element may extend along a central tube axis between a first end and a second end, the first end being larger than the second end. The tubular element may define at least one groove along a lateral wall of the tubular element.

Abstract: Methods of sizing a nasal airway by using certain measurements of digits may include (a) pressing a distal portion of a digit of a hand against a resilient, flat surface, such that flesh of the distal portion of the digit spreads laterally on the surface; (b) measuring the digit's width at a digit measuring level, the measuring level being the widest part of the digit distal to a distal-most interphalangeal joint of the digit; and (c) identifying a nasal airway size as that size which correlates most closely to the digit's width as measured at the digit measuring level.

Abstract: Devices for nasal insertion may include an open-ended tubular element which extends along a central tube axis between a first end and a second end, the first end being larger than the second end, and in which the tubular element includes at least one spiral strut extending from the first end to the second end, and/or a nodule having an internal face, a rounded external face, and a stalk extending from the internal face and terminating in an anchor sufficiently larger than a receptacle in the tubular element and sufficiently deformable as to be pressed through the receptacle to affix the nodule to the tubular element.

Abstract: Methods of sizing a nasal airway by using certain measurements of digits.

Abstract: A device for nasal insertion may include an open-ended tubular element. The tubular element may extend along a central tube axis between a first end and a second end, the first end being larger than the second end. The tubular element may define at least one groove along a lateral wall of the tubular element.

Abstract: A nasal breathing assist device includes a pair of open-ended tubular elements each extending along a central tube axis between a relatively large first end and a relatively small second end, a coupler element extending between the first ends of the tubular elements, and at least one non-resilient tab extends from the first end toward the second end of the tubular element. The tab includes at least one relatively small protrusion extending from a distal end of the tab toward the tubular element. The device may further includes a filer having a peripheral frame contoured to be snap-fitted in an open-faced channel defined within the tubular element. The device may further includes a removable medication carrier which is adapted to bear a therapeutic agent and adapted to insert into the open-faced channel of the tubular element. The tubular element may define at least one channels on an inner surface of the tubular element to receive edges of the medication carrier.

Abstract: A nasal insert may include a wall in the shape of a tube, the wall including a first end defining a first orifice and a second end defining a second orifice. The first end may have a diameter, diagonal measurement, or cross-sectional area larger than that of the second end. The first end may define at least one break in the wall, so that the first end incompletely encircles the first orifice. The second end may completely encircle the second orifice.