Patent Application
20210353068
The present disclosure relates generally to a portable seat and back cushion for improving posture and relieving pressure concentrations of a user, and more particularly relates to a portable seat and back cushion providing support to the sacrum and the lumbar region of a user and can be used in connection with a wide variety of chairs and seats.
The use of inflatable or foam cushions is known. Conventional cushions come in familiar configurations adapted to the specific use objective of each inflatable cushion. Examples of such cushions are described in U.S. Pat. Nos. 5,911,657; 8,740,303; 6,929,325; and 4,761,011. However, conventional cushions lack portability or suitable adjustability to support individual vertebrae.
It therefore would be desirable to provide improved portable seat and back cushions that can be adjusted to provide a user with custom support of his or her vertebrae, for example, for posture correction and/or pain relief.
Portable seat cushions are provided with individually customizable ergonomic support for the pelvic, lumbar, and thoracic regions.
In embodiments, the seat cushion has a seat member and a back member, which are flexibly connected together. In some embodiments, the seat member includes an inflatable bladder or a foam insert, and the back member includes a customizable support member disposed within the back member. The customizable support member may include either an inflatable bladder with a plurality of individually adjustable bubbles arranged in a vertical row about the middle of the back member or a semi-rigid insert with a plurality of selectively positionable vertebral support nodules. The inflation pressure within each vertebral support bubble may be individually adjustable. Similarly, the foam insert for the back member comprises a plurality of selectively positionable vertebral support nodules for individual adjustment.
The detailed description is set forth with reference to the accompanying drawings. The use of the same reference numerals may indicate similar or identical items. Various embodiments may utilize elements and/or components other than those illustrated in the drawings, and some elements and/or components may not be present in various embodiments. Elements and/or components in the figures are not necessarily drawn to scale.
The present disclosure provides a portable cushion with individually customizable support for the pelvic, lumbar and thoracic regions to provide customized ergonomic support. In embodiments, the portable cushion is a portable seat and back cushion, which includes (i) a seat member which comprises an inflatable bladder or a foam insert; (ii) a back member foldably connected along an edge to the seat member; and (iii) a customizable spinal support member disposed within the back member, wherein the customizable spinal support member includes (a) an inflatable bladder which comprises a plurality of vertebral support bubbles arranged in vertical row about the middle of the back member, wherein an inflation pressure within each vertebral support bubble is individually adjustable; or (b) a semi-rigid insert which comprises a plurality of selectively positionable vertebral support nodules.
The seat cushion advantageously provides portability and customizable spinal support. The shape, position, and/or firmness of the customizable support member may be adjusted by a user according to his or her needs. Such customization allows for individual adjustments to support for pelvic, lumbar, and thoracic areas—including each individual vertebrae therein—that can be tailored to an individual user's pain or posture correction needs. The cushioning also may help users to mitigate aches and sores that result from prolonged periods of sitting.
The seat cushion includes a seat member and a back member. In a preferred embodiment, the seat member and back member are flexibly connected along an edge such that the seat member and the back member may be folded against one another. This folding functionality enables compact storage and transport of seat cushion. The seat and back members may connected by a number of different means. For example, the covers of the members may be in integrally connected (e.g., formed from a shared fabric material) or they may be joined together with straps, ties, zippers, hook-and-loop fasteners, or a combination thereof.
In embodiments, the back member contains a customizable spinal support member disposed therein. The customizable support member can take multiple forms, including an inflatable bladder with a plurality of vertebral support bubbles or a semi-rigid insert with support nodules. The firmness and/or position of the support bubbles and the support nodules can be individually adjusted to suit a user's needs.
In some embodiments, the seat member and the back member each includes a generally pliable outer cover in which the cushioning and support structures are contained. The covers may include a resealable opening for accessing compartments within the members for receiving the cushioning and support structures. The resealable opening may include one or more zippers, snaps, straps, hook-and-loop fasteners, or the like. In some embodiments, this cover may be formed of, or may include, a non-slip material, such as woven or non-woven fabrics (e.g., nylon), polymeric sheets (e.g., vinyl), or combinations of such materials as known in the art.
The seat member and back member may contain an inflatable bladder and/or foam insert for support and cushioning.
In some embodiments, the inflatable bladder contained within the back member includes a plurality of vertebral support bubbles arranged in a vertical row about the middle of the back member, approximately corresponding to the position of the spine of a person seated on the cushion. In some embodiments, the inflation pressure within each vertebral support bubble is individually adjustable. In some other embodiments, a subset of the support bubbles are sealed and unadjustable. In some embodiments, groups of the support bubbles, e.g., adjacent bubbles, are in fluid communication and share an inflation pressure. The inflatable bladder includes at least one valve configured for introducing and removing air from the inflatable bladder. Such valves are known in the art. In some embodiments, each bubble includes its own valve, so that each bubble can be inflated independently to its own pressure corresponding to a desired firmness for vertebral support.
In some embodiments, the inflatable bladder is positioned within the back member such that at least one of the vertebral support bubbles supports a pelvis and a sacrum. In some embodiments, at least one of the vertebral support bubbles also supports one or more vertebrae within the lumbar section of a human spine. In some embodiments, at least one of the vertebral support bubbles also supports one or more vertebrae within the thoracic section of a human spine.
In some other embodiments, instead of an inflatable bladder, a foam insert configured for vertebral support is provided for insertion within the back member. In preferred embodiments, the foam insert includes a plurality of vertebral support nodules affixed to the insert. The nodules may be removably affixable to an outer surface of the insert, so that the positions of the support nodules are adjustable and may be repeatedly repositionable to suit the particular support needs of a user. The support nodules may be secured to the insert with a pressure sensitive adhesive or a hood-and-loop fastener, for example. The support nodules may have a circular, elliptical, or semi-circular shape in a plan view, and in a cross-sectional view may have a spherical cap or other rounded outwardly projecting surface and an opposed substantially planar back surface that is securable to the foam insert. In some embodiments, the support nodule has a diameter from about 0.75 inches to about 1 inch, and a maximum thickness from about 0.25 inches to about 1 inch. In some embodiments, the foam insert has a Shore hardness ranging from Shore 00 20 to Shore D 40.
In the embodiment where the back member includes the semi-rigid insert, the insert and/or the vertebral support nodules may have a Shore hardness in a range from Shore 00 20 to Shore D 40. The semi-rigid insert may have a length of about 12 to 24 inches, with a width of about 0.5 to 2 inches, and a depth of about 1 to 12 inches. The dimensions of the semi-rigid insert may vary as necessary to provide appropriate support for pain relief and/or posture correction. These variations can include multiple curvature profiles of the semi-rigid insert such as an elliptical profile or a tapered profile.
The seat cushion may optionally include one or more straps or handles affixed to surfaces or edges that do not impede the user's comfort when sitting on the seat cushion. Such straps or handles may be configured to facilitate (i) securing the orientation between the seat member and the back member, (ii) securing the seat cushion onto chair or other seating surface in a useable position, (iii) storage and transport of the seat cushion, or (iv) a combination of any of (i) to (iii). In some preferred embodiments, the portable seat cushion is configured for relieving pressure points and improving posture through support of the pelvic, lumbar and thoracic regions, while maintaining a form that allows the cushion to be compatible with chairs and seats of varying shapes and sizes without specialized forms of seating and without the need for straps to secure the cushion to a seat or chair.
One non-limiting example of a seat cushion 100 according to the present disclosure is shown in
The seat member 101 has an upper surface 111 and an opposed lower surface 121 (which cannot be seen in
The back member 102 includes a front surface 104 and contains an inflatable bladder or a foam insert (which cannot be seen in
As shown in
As noted above, in some embodiments, instead of the semi-rigid insert, the customizable spinal support member includes an inflatable bladder which includes a plurality of vertebral support bubbles arranged in vertical row about the middle of the back member.
In the illustrated embodiment of
Modifications and variations of the methods and devices described herein will be obvious to those skilled in the art from the foregoing detailed description. Such modifications and variations are intended to come within the scope of the appended claims.
