Dynamic arch support insole for applying continuous pressure

Abstract

Methods, devices, systems, and kits for dynamically supporting the arch of a wearer's foot are provided. In one aspect, an insole including an arch support structure is described. The arch support structure includes a pre-loaded spring force configured to compress under pressure from a foot to a weight bearing configuration and retract as the pressure from the foot is removed to a non-weight bearing configuration.

Description

SGRIM. OOIWO PATENTDYNAMIC ARCH SUPPORT INSOLE FOR APPLYING CONTINUOUS PRESSUREINCORPORATION BY REFERENCE TO A Y PRIORITY APPLICATIONS

[0001] This application claims the benefit of priority to U. S. Provisional Application No. 63 / 739491, filed December 28, 2024. The above-referenced application is incorporated by reference herein in its entirety. Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57.BACKGROUNDField

[0002] The following described devices, systems, and methods relate to supporting the arch of a foot throughout a wearer’s gait cycle. More specifically, insoles that can apply dynamic arch support while the wearer’s foot is lifted,

[0003] Description of the Related Art

[0004] Many people suffer from painful foot maladies, not the least of which includes maladies associated with the arch and heel areas of the foot. Various technologies exist to alleviate discomfort for those who suffer from pain the in the arch and calcaneus regions of the foo t.SUMMARY

[0005] For purposes of summarizing the present disclosure and its advantages, certain objects and advantages of the present disclosure are described herein. Not all such objects or advantages may be achieved in any particular embodiment of the present disclosure. Thus, for example, those skilled in the art will recognize that the present disclosure may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.

[0006] In some aspects, a foot support device is described. The insole includes an arch support structure including a pre-loaded spring force configured to compress under pressure from a foot to a weight bearing configuration and retract as the pressure from the foot is removed to a non-weight bearing configuration.

[0007] In some examples, the foot support device further includes a shank disposed under the arch support structure, the shank including a semi-rigid material.

[0008] In some examples, the foot support device further includes an additional cushioning layer disposed over the arch support structure,

[0009] In some examples, the arch support structure includes an apex, a front incline extending from a front edge of the arch support structure upward towards the apex, a rear incline extending from the apex downward towards a heel cup, where the heel cup is configured to secure a wearer’s heel,

[0010] In some examples, the heel cup comprises a cup shape.

[0011] In some examples, the arch support structure includes an apex in an arch portion of the arch support structure, where a height of the apex is greater than 25 mm in the non-weight bearing configuration.

[0012] In some examples, the arch support structure includes an apex angle from a medial side to a lateral side from 0 to 10 degrees.

[0013] In some examples, the shank comprises an apex angle from a medial side to a lateral side from 0 to 10 degrees.

[0014] In some examples, the arch support structure is configured to flex and retract uniformly when transitioning between the weight bearing configuration and the non-weight bearing configuration.

[0015] In some examples, the shank is reversibly removable.

[0016] In some examples, the shank is comolded to a body portion of the arch support structure.

[0017] In some examples, the shank is adhered to a bottom of a body portion of the arch support structure.

[0018] In some examples, in the non-weight bearing configuration the arch support structure is compressed relative to an unconstrained position.

[0019] In some examples, the foot support device further includes a longitudinally compressible region disposed adjacent to the arch support structure, the longitudinally compressible region configured to absorb a change in length of the arch support structure as the arch support structure transitions from the weight bearing configuration to the non-weight bearing configuration.

[0020] In some aspects a kit is described. The kit includes, for example, an insole and a shank comprising a semi-rigid material.

[0021] In some examples, the kit further includes an additional shank.

[0022] In some examples, the shank includes a first arch height, and the additional shank includes a second arch height that is higher than the first arch height.

[0023] In some aspects, a method of supporting an arch of a foot is described. The method includes providing a foot support device, positioning the foot support device under an arch of a wearer’s foot, and providing consistent arch support to the arch of the foot via the foot support device throughout the wearer’s gait.

[0024] In some examples, the method includes positioning a heel of the wearer’s foot in a heel cup of the foot support device.

[0025] In some examples, the foot support device comprises an insole.

[0026] In some examples, the method further includes preloading the foot support device.BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG. 1A illustrates a profile outline view of an insole in a non- weight bearing configuration.

[0028] FIG. IB illustrates a profile outline view of an insole in a weight bearing configuration.

[0029] FIG. 2A illustrates a profile body view of an insole in a non-weight bearing configuration.

[0030] FIG. 2B illustrates a profile body view of an insole in a weight bearing configuration.

[0031] FIG. 3A illustrates top view of an insole.

[0032] FIG. 3B illustrates a bottom view of an insole.

[0033] FIG. 4A illustrates a profile outline view of an insole including a secondary' support element in a non-w’eight bearing configuration.

[0034] FIG. 4B illustrates a profile outline view of an insole including a secondary support element in a weight bearing configuration.

[0035] FIG. 5 illustrates a perspective view of an insole.

[0036] FIG. 6A illustrates a cross-sectional view of an unconstrained insole disposed in a shoe.

[0037] FIG. 6B illustrates a cross-sectional view of an insole in a weight bearing configuration disposed in a shoe.

[0038] FIG. 7 A illustrates a top perspective view of an insole.

[0039] FIG, 7B illustrates a top perspective view of an msole.

[0040] FIG. 8 illustrates examples of longitudinally compressible regions.

[0041] FIG, 9 illustrates a bar plot of survey results before and after msole use,DETAILED DESCRIPTION

[0042] Often, conventional arch support insoles rely on static designs which engage with a wearer’s foot only while standing. These conventional arch support insoles only support the wearer’s arch while the wearer is standing or stepping down on the insole. The conventional arch support insoles disengage when the wearer’s foot is lifted. For example, the conventional arch support insoles can disengage mid-stride. Therefore, the conventional arch support insoles do not maintain consistent pressure across a wearer’s gait cycle and are primarily effective only when the wearer is standing still. The inconsistent pressure provided by conventional arch support insoles can lead to repetitive stress on foot structures, for example the arch or calcaneus regions of the foot. The limitations of conventional insoles can lead to inadequate support during the gait cycle and result in persistent foot discomfort or exacerbation of conditions such as plantar fasciitis. Therefore, conventional arch support insoles only provide intermittent relief to arch and heel pain and may cause uneven support, ankle instability, or discomfort. As such, a need exists for a device to provide continuous support and even pressure to a wearer’s arch throughout a gait cycle and while standing.

[0043] The present disclosure described devices, systems, and methods for providing continuous support and consistent pressure under a wearer’s arch throughout a gaitcycle and while standing. The devices described herein provide dynamic engagement to a wearer’s arch and apply consistent pressure to the wearer’s arch by flexing and contracting with the loading and flexing of the w’earer’ s foot.

[0044] By maintaining continuous support, the devices described prevent the on-and-off pressure cycle typical of conventional insole designs, promote healthier foot mechanics, and reduce strain on the wearer’s foot muscles and tissues.

[0045] Advantageously, the continuous arch support systems described adapt to the wearer’s foot movements throughout the gait cycle and can offer superior relief. By flexing and retracting in harmony with the wearer’s foot motions, the devices and systems described ensure consistent support and pressure distribution and reduce strain on the plantar fascia and associated musculature. The dynamic adaptation of the devices described not only enhance comfort but also promote natural foot biomechanics. The devices described can potentially prevent the development of further foot-related issues for the wearer.

[0046] It should be appreciated that while the disclosed devices, systems, and methods are described with regard to various insoles, the disclosed devices, systems, and methods can be applied to any foot support device. The foot support devices can include shoes, sandals, orthotics, boots, socks, or other forms of foot support. The foot support devices can be removable and / or replaceable insoles. The foot support devices can be insoles integral to the shoe, sandal, boot, or other form of foot support. The foot support devices can be glued or bonded into a shoe, sandal, boot, or other form of foot support.

[0047] FIGS. 1A and IB illustrate profile outlines of an insole in a non- weight bearing configuration and weight bearing configuration respectively. The insole can include an exaggerated arch height when unconstrained. The exaggerated arch height can be higher than a wearer’s natural arch height. This exaggerated arch height can be compressed between the wearer’s foot and the wearer’s shoe to pre-load the insole. Advantageously, this pre-load can apply a force to the arch of the wearer’s foot, even when the foot is raised or the wearer is laying down. The exaggerated arch height can be further compressed when the wearer presses their foot against the ground, for example, by standing or walking. The insole can include an arch support structure having a pre-loaded spring force configured to compress under pressure from a foot to the weight bearing configuration and retract as the pressure from the foot is removed to the non- weight bearing configuration.

[0048] FIG. 1A illustrates a profile outline of an insole 100A in a non- weight bearing configuration. The non- weight bearing configuration of the insole 100A can represent the shape of the insole while disposed under a wearer’s foot while the wearer’s foot is lifted off of the ground. In some examples, the non-weight bearing configuration can represent a completely unloaded configuration of the insole. In some examples, in the non-weight bearing configuration can represent the insole in a configuration which is deformed (e.g., compressed) by the forces provided by the wearer’s shoe and foot pressing the insole 100A towards the arch of the wearer’s foot. Advantageously, where the insole 100 A is deformed (e.g., compressed) between the wearer’s foot and the shoe, the insole 100 A can provide a spring force that supports the wearer’s foot while the wearer’s foot is lifted away from the ground.

[0049] As illustrated, the insole 100A includes an arch portion 102 and a heel portion 104. In the arch portion 102, the insole 100 A includes a non-weight bearing contour 110A. In the heel portion 104, the insole 100A includes a heel cup 120A. The non-weight bearing contour 110A includes a front incline 112A which extends from a front edge of the arch portion 102 upward towards an apex 114A (e.g., a retraction point). The apex 114A is positioned rearward from the front edge of the arch portion 102 and forward from the heel portion 104. The non-weight bearing contour 110A includes a rear incline 116A which extends from the apex 114A downward towards the heel portion 104. The rear incline 116A connects the non-weight bearing contour 110A to the heel cup 120 A. The heel cup 120A includes a center of the heel 122A. The heel cup 120A extends forward and upward from the center of the heel 122A to connect to the rear incline 116A and upward and rearward from the center of the heel 122A to the rear edge of the heel portion 104.

[0050] The heel cup 120 A can secure a wearer’s heel in place relative to the insole 100 A. The non-weight bearing contour 110A can apply pressure to the wearer’s arch when the wearer’s foot is raised off the ground.

[0051] The apex 114A can be a height A above the center of the heel 122A. The height A can be, be about, or be at least about 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, or any range of values there between. In some examples, insole 100A may include low, medium, and high arch versions. In some examples, the low arch version of the insole 100A can have a height A of, of about, or of at least about 5 mm, 10 mm, 15 mm, or any range of values therebetween. In some examples, themedium arch version of the insole 100A can have a height A of, of about, or of at least about 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, or any range of values therebetween. In some examples, the high arch version of the insole 100A can have a height A of, of about, or of at least about 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, or any range of values therebetween.

[0052] The height A of the apex 114A above the center of the heel 122A in the non- weight bearing configuration can be shorter than the height of the apex 114A above the center of the heel 122A in a completely unconstrained position. This height difference can be, be about, or be at least about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, or any range of values therebetween. The height A can be higher than the anatomical arch curve of the wearer’s foot. Advantageously, this height difference can facilitate a pressure between the non-weight bearing contour and the wearer’s foot. The appropriate height A of an insole 100 A for a particular wearer can be calculated by measuring the curve angle of the arch ligament against the curve angle of the non-weight bearing contour 110A.

[0053] FIG. IB illustrates a profile outline of an insole 100B in a weight bearing configuration. The weight bearing configuration of the insole 100B can represent the shape of the insole while disposed under a wearer’s foot while the wearer’s foot placed on the ground with some or all of the wearer’s weight pressing downward through the wearer’s foot. The insole 100B can be the same or substantially the same insole described above with regard to FIG. 1A in a weight bearing configuration. Advantageously, the insole 100B can provide a spring force that supports the wearer’s foot while the wearer’s foot is disposed on the ground.

[0054] As illustrated, the insole 100B includes an arch portion 102 and a heel portion 104. In the arch portion 102, the insole 100B includes a weight bearing contour 110B. In the heel portion 104, the insole 100B includes a heel cup 120B. The weight bearing contour 110B includes a front incline 112B which extends from a front edge of the arch portion 102 upward towards an apex 114B. The apex 114B is positioned rearward from the front edge of the arch portion 102 and forward from the heel portion 104. The weight bearing contour 110B includes a rear incline 116B which extends from the apex 114B downward towards the heel portion 104. The rear incline 116B connects the weight bearing contour 110B to the heel cup 120B. The heel cup 120B includes a center of the heel 122B. The heel cup 120B extendsforward and upward from the center of the heel 122B to connect to the rear incline 116B and upward and rearward from the center of the heel 122B to the rear edge of the heel portion 104.

[0055] The heel cup 120B can secure a wearer’s heel in place relative to the insole 100B. The weight bearing contour HOB can apply pressure to the wearer’s arch when the wearer’s foot is positioned on the ground. The weight bearing contour HOB can apply pressure to the wearer’s arch when the wearer’s foot is pressing against the ground. The weight bearing contour HOB can apply pressure to the wearer’s arch when the wearer’s foot is applying a force to the ground.

[0056] The apex 114B can be a height B above the center of the heel 122B. The height B can be, be about, or be at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or any range of values there between. In some examples, insole 100B may include low, medium, and high arch versions. In some examples, the low arch version of the insole 100B can have a height B of, of about, or of at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or any range of values therebetween. In some examples, the medium arch version of the insole 100B can have a height B of, of about, or of at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, 25 mm, or any range of values therebetw'een. In some examples, the high arch version of the insole 100B can have a height B of, of about, or of at least about 0 mm, I mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or any range of values therebetween.

[0057] The height B of the apex 114B above the center of the heel 122B m the weight bearing configuration can be shorter than the height A of the apex 114A above the center of the heel 122A in the non- weight bearing configuration. This height difference can be, be about, or be at least about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, or any range of values therebetween. The transition between the weight bearing configuration to the non-weight bearing configuration and back again, can cause the height of the apex 114B to vary between the height B to the height A and values therebetw’een. This transition can occur, for example, while the wearer walks. Advantageously, this transition can facilitate the application of consistent pressure to the arch of the wearer’s foot throughout the wearer’s gait cycle.

[0058] FIG. 2A illustrates a profile body view of an insole 200A in a non-weight bearing configuration. The insole 200A can be an orthotic insert configured to be inserted into a shoe. The insole 200A can be an insole of a shoe. The insole 200A can be integral to a shoe. The insole 200A can be integral to a sock, sleeve, or booty. The non-weight bearing configuration of the insole 200A can represent the shape of the insole while disposed under a wearer’s foot while the wearer’s foot is lifted off of the ground. In some examples, the non- weight bearing configuration can represent a completely unloaded configuration of the insole. In some examples, in the non-weight bearing configuration can represent the insole in a configuration which is deformed (e.g., compressed) by the forces provided by the wearer’s shoe and foot pressing the insole 200A towards the arch of the wearer’s foot. Advantageously, where the insole 200A is deformed (e.g,, compressed) between the wearer’s foot and the shoe, the insole 200A can provide a spring force that supports the wearer’s foot while the wearer’s foot is lifted away from the ground.

[0059] As illustrated, the insole 200A includes an arch portion 202 and a heel portion 204. In the arch portion 202, the insole 200A includes a non-weight bearing contour 210 A. In the heel portion 204, the insole 200A includes a heel cup 220A. The non-weight bearing contour 210A includes a front incline 212A which extends from a front edge of the arch portion 202 upward towards an apex 214A. The apex 214A is positioned rearward from the front edge of the arch portion 202 and forward from the heel portion 204. The non-weight bearing contour 210A includes a rear incline 216A which extends from the apex 214A downward towards the heel portion 204. The rear incline 216A connects the non-weight bearing contour 210A to the heel cup 220A. The heel cup 220A includes a center of the heel 222A. The heel cup 220A extends forward and upward from the center of the heel 222A to connect to the rear incline 216A and upward and rearward from the center of the heel 222 A to the rear edge of the heel portion 204.

[0060] The insole 200A can include an arch support structure 240A. The arch support structure 240A can be elastic such that the arch support structure 240A can flex and retract when force is applied to the arch support structure 240A. The arch support structure 240A can include an elastic material. The arch support structure 240A can include an elastic polymer. The arch support structure 240A can include a foam material. The arch support structure 240A can include a plastic material.

[0061] The insole 200A can include a foot cradling upper surface 230A. The foot cradling upper surface 230A can extend across some of the upper surface of the insole 200A. The foot cradling upper surface 230A can extend across ail or substantially all of the upper surface of the insole 200A. The foot cradling upper surface 230A can extend from a medial edge to a lateral edge of the insole 200A. The foot cradling upper surface 230A can extend across all of the length of the non- weight bearing contour 210A. The foot cradling upper surface 230A can extend across all of the length of the non-weight bearing contour 210A and the heel cup 220 A. The foot cradling upper surface 230A can be shaped or molded to conform with the shape of a foot. The foot cradling upper surface 230A can include a cushioning layer,

[0062] FIG. 2B illustrates a profile body view of an insole 200B in a weight bearing configuration. The insole 200B can be an orthotic insert configured to be inserted into a shoe. The insole 200B can be an insole of a shoe. The insole 200B can be integral to a shoe. The insole 200B can be integral to a sock, sleeve, or booty. The weight bearing configuration of the insole 200B can represent the shape of the insole while disposed under a wearer’s foot while the wearer’s foot positioned on the ground and applying weight. In some examples, the weight bearing configuration can represent a loaded configuration of the insole. Advantageously, where the insole 200B is deformed (e.g., compressed) by the force of the wearer’s foot against the ground, the insole 200B can provide a spring force that supports the wearer’s foot while in a weight bearing position.

[0063] As illustrated, the insole 200B includes an arch portion 202 and a heel portion 204. In the arch portion 202, the insole 200B includes a weight bearing contour 210B. In the heel portion 204, the insole 200B includes a heel cup 220B. The weight bearing contour 210B includes a front incline 212B which extends from a front edge of the arch portion 202 upward towards an apex 214B. The apex 214B is positioned rearward from the front edge of the arch portion 202 and forward from the heel portion 204. The weight bearing contour 210B includes a rear incline 216B which extends from the apex 214B downward towards the heel portion 204. The rear incline 216B connects the weight bearing contour 210B to the heel cup 220B. The heel cup 220B includes a center of the heel 222B. The heel cup 220B extends forward and upward from the center of the heel 222B to connect to the rear incline 216B and upward and rearward from the center of the heel 222B to the rear edge of the heel portion 204.

[0064] The insole 200B can include an arch support structure 240B. The arch support structure 240B can be elastic such that the arch support structure 240B can flex and retract when force is applied to the arch support structure 240B. The arch support structure 240B can include an elastic material. The arch support structure 240B can include an elastic polymer. The arch support structure 240B can include a foam material. The arch support structure 240B can include a plastic material.

[0065] The insole 200B can include a foot cradling upper surface 230B. The foot cradling upper surface 230B can extend across some of the upper surface of the insole 200B. The foot cradling upper surface 230B can extend across all or substantially all of the upper surface of the insole 200B. The foot cradling upper surface 230B can extend from a medial edge to a lateral edge of the insole 200B. The foot cradling upper surface 23 OB can extend across all of the length of the weight bearing contour 21 OB. The foot cradling upper surface 230B can extend across all of the length of the weight bearing contour 210B and the heel cup 220B. The foot cradling upper surface 230B can be shaped or molded to conform with the shape of a foot. The foot cradling upper surface 23 OB can include a cushioning layer.

[0066] FIG. 3 A illustrates a top view of an insole 300. The insole 300 can include any of the features described with regard to the insoles 100 / X, 100B, 200 A, and 200B described herein. The insole 300 can include a body portion 350. The body portion 350 can form the shape of the insole 300. The insole 300 can include a flexible or elastic material. The body portion 350 can be formed from the flexible or elastic material. The insole 300 can include a material best suitable for foot comfort, for example, elastic materials, foam, or plastic. The body portion 350 can include one or more layers. The body portion 350 can include an arch support structure, a foot cradling upper surface, and / or a heel cup as described herein with regard to FIGS. 2A and 2B. The body portion 350 can be made of soft foams, memory foams, elastomers, EVA, polyurethane, or other soft and / or flexible materials. The body portion 350 can provide cushioning and comfort to the insole 300. The insole 300 can be integral to the sole of a shoe. The insole 300 can be removable from a shoe. The insole 300 can be replaceably or reversibly removable. The insole 300 can be interchangeable with other insoles. The insole 300 can be positioned under the arch of a wearer’s foot. The insole 300 can extend under the ball of the wearer’s foot. The insole 300 can extend under the heel of the wearer’s foot.

[0067] FIG. 3B illustrates a bottom view of an insole 300. The insole 300 can include the body portion 350 and a shank 352. The shank 352 can be attached to the body portion 350. The shank 352 can be embedded in the body portion 350. The shank 352 can attach to the body portion 350 via adhesive or glue. The body portion 350 can be overmolded onto the shank 352. The body portion 350 and the shank 352 can be comolded. The shank 352 can include an arch support structure as described herein with regards to FIGS. 2A and 2B. The shank 352 can be made of elastic materials. The shank 352 can be made of rigid or semi¬ rigid materials. In some examples, the shank 352 can be made from carbon fiber, PEBA-Based materials, Glass-reinforced Polyamides, TPU, Nylon, plastic, fiberglass, or other semi-rigid elastic materials.

[0068] The shank 352 can provide support for the shape of the insole 300. The shank 352 can flex. The shank 352 can provide the elasticity to form the non- weight bearing and weight bearing contours described above with regard to FIGS. 1 A-2B. The shank 352 can facilitate the application of pressure to the wearer’s arch when the wearer’s foot is pressing against the ground. The shank 352 can facilitate the application of pressure to the wearer’s arch when the wearer’s foot is lifted away from the ground. The shank 352 can advantageously provide structural integrity and dynamic flexibility to the insole 300.

[0069] The insole 300 can include additional cushioning layers. The insole 300 can include ventilation holes in the body portion 350 and / or in the shank 352. The insole 300 can include a color demarcating that the insole is a certain size and / or has a certain arch height.

[0070] The shank 352 can be a replaceable or removable component of the insole 300. The shank 352 can reversibly or removably be disengaged from the body portion 350. The shank 352 can be replaceably or reversibly removable from the body portion 350. In some embodiments, the insole 300 may be a kit including a body portion 350 and one or more shanks 352. The shanks 352 in the kit can have the same or different apex heights. The shanks 352 can be produced or packaged separately from the body portion 350 such that the shank 352 can be replaced as desired. The replaceable shank 352 can advantageously extend the life of the insole 300. The replaceable shank 352 can advantageously allow for shanks 352 having various therapeutic properties to target various maladies and / or comfort levels.

[0071] FIG. 4A illustrates a profile outline view of an insole 400A including a support element 460A (e.g., a secondary support element) in a non- weight bearingconfiguration. The non-weight bearing configuration of the insole 400A can represent the shape of the insole 400A while disposed under a wearer’s foot while the wearer’s foot is lifted off of the ground. In some examples, the non-weight bearing configuration can represent a completely unloaded configuration of the insole. In some examples, in the non-weight bearing configuration can represent the insole in a configuration which is deformed (e.g., compressed) by the forces provided by the wearer’s shoe and foot pressing the insole 400A towards the arch of the wearer’s foot. Advantageously, where the insole 400A is deformed (e.g., compressed) between the wearer’s foot and the shoe, the insole 400A can provide a spring force that supports the wearer’s foot while the wearer’s foot is lifted away from the ground.

[0072] As illustrated, the insole 400A includes an arch portion 402 and a heel portion 404. In the arch portion 402, the insole 400A includes a non-weight bearing contour 410A. In the heel portion 404, the insole 400A includes a heel cup 420A, The non-weight bearing contour 410A includes a front incline 412A which extends from a front edge of the arch portion 402 upward towards an apex 414A. The apex 414A is positioned rearward from the front edge of the arch portion 402 and forward from the heel portion 404. The non-weight bearing contour 410A includes a rear incline 416A which extends from the apex 414A downward towards the heel portion 404. The support element 460A can be disposed under the arch portion 402 of the insole 400 / X. The support element 460A can be positioned under the apex 414A of the insole 400 / X. The rear incline 416A connects the non-weight bearing contour 410A to the heel cup 420 A. The heel cup 420 A includes a center of the heel 422 A. The heel cup 420A extends forward and upward from the center of the heel 422A to connect to the rear incline 416A and upward and rearward from the center of the heel 422 A to the rear edge of the heel portion 404.

[0073] The heel cup 420A can secure a wearer’s heel in place relative to the insole 400 A. The non-weight bearing contour 410A can apply pressure to the wearer’s arch when the wearer’s foot is raised off the ground.

[0074] The support element 460A can provide support to the arch portion 402. The support element 460A can be elastic. The support element 460A can provide a force to the apex 414A. The support element 460 A can advantageously enhance dynamic movement of the insole 400A. The support element 460A can advantageously enhance pressure distribution throughout the insole 400A. The support element 460A can be hollow. The support element460A can be solid. The support element 460 A can be a spring plate. The support element 460 can include an angled fascia bar. The support element 460A can be a flexible tube spring.

[0075] The apex 414A can be a height A above the center of the heel 422A. The support element 460A can be the height A. The height A can be, be about, or be at least about 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, or any range of values there between. In some examples, insole 400A may include low, medium, and high arch versions. In some examples, the low arch version of the insole 400 A can have a height A of, of about, or of at least about 5 mm, 10 mm, 15 mm, or any range of values therebetween. In some examples, the medium arch version of the insole 400A can have a height A of, of about, or of at least about 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, or any range of values therebetween. In some examples, the high arch version of the insole 400 A can have a height A of, of about, or of at least about 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, or any range of values therebetween.

[0076] The height A of the apex 414A above the center of the heel 422A in the non-weight bearing configuration can be shorter than the height of the apex 414A above the center of the heel 422A in a completely unconstrained position. This height difference can be, be about, or be at least about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, or any range of values therebetween. / Advantageously, this height difference can preload the insole 400A in the non-weight bearing configuration and facilitate a pressure between the non¬ weight bearing contour and the wearer’s foot.

[0077] FIG. 4B illustrates a profile outline of an insole 400B in a weight bearing configuration. The weight bearing configuration of the insole 400B can represent the shape of the insole while disposed under a wearer’s foot while the wearer’s foot placed on the ground with some or all of the wearer’s weight pressing downward through the wearer’s foot. The insole 400B can be the same or substantially the same insole described above with regard to FIG. 4A in a weight bearing configuration. Advantageously, the insole 400B can provide a spring force that supports the wearer’s foot while the wearer’s foot is disposed on the ground.

[0078] As illustrated, the insole 400B includes an arch portion 402 and a heel portion 404. In the arch portion 402, the insole 400B includes a weight bearing contour 410B. In the heel portion 404, the insole 400B includes a heel cup 420B. The weight bearing contour 410B includes a front incline 412B which extends from a front edge of the arch portion 402upward towards an apex 414B. The apex 414B is positioned rearward from the front edge of the arch portion 402 and forward from the heel portion 404. The weight bearing contour 41 OB includes a rear incline 416B which extends from the apex 414B downward towards the heel portion 404. The support element 460B can be d isposed under the arch portion 402 of the insole 400B. The support element 460B can be positioned under the apex 414B of the insole 400B. The rear incline 416B connects the weight bearing contour 41 OB to the heel cup 420B. The heel cup 420B includes a center of the heel 422B. The heel cup 420B extends forward and upward from the center of the heel 422B to connect to the rear incline 416B and upward and rearward from the center of the heel 422B to the rear edge of the heel portion 404.

[0079] The heel cup 420B can secure a wearer’s heel in place relative to the insole 400B. The weight bearing contour 410B can apply pressure to the wearer’s arch when the wearer’s foot i positioned on the ground. The weight bearing contour 410B can apply pressure to the wearer’s arch when the wearer’s foot is pressing against the ground. The weight bearing contour 410B can apply pressure to the wearer’s arch when the wearer’s foot is applying a force to the ground.

[0080] The support element 460B can provide support to the arch portion 402. The support element 460B can be elastic. The support element 460B can provide a force to the apex 414B. The support element 460B can advantageously enhance dynamic movement of the insole 400B. The support element 460B can advantageously enhance pressure distribution throughout the insole 400B. The support element 460B can be a spring plate. The support element 460B can be a flexible tube.

[0081] The apex 414B can be a height B above the center of the heel 422B. The support element 460B can be the height B in the weight bearing configuration. The height B can be, be about, or be at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or any range of values there between. In some examples, insole 400B may include low, medium, and high arch versions. In some examples, the low arch version of the insole 400B can have a height B of, of about, or of at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or any range of values therebetween. In some examples, the medium arch version of the insole 400B can have a height B of, of about, or of at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm,20 mm, 25 mm, or any range of values therebetween. In some examples, the high arch version of the insole 400B can have a height B of, of about, or of at least about 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or any range of values therebetween.

[0082] The height B of the apex 414B above the center of the heel 422B in the weight bearing configuration can be shorter than the height A of the apex 414A above the center of the heel 422A in the non-weight bearing configuration. This height difference can be, be about, or be at least about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, or any range of values therebetween. The transition between the weight bearing configuration to the non-weight bearing configuration and back again, can cause the height of the apex 414B to vary between the height B to the height A and values therebetween. This transition can occur for example while the wearer walks. Advantageously, this transition can facilitate the application of consistent pressure to the arch of the wearer’s foot throughout the wearer’s gait cycle.

[0083] FIG. 5 illustrates a perspective view of an insole 500. The insole 500 can include any of the features described with reference to FIGS. 1 A-4B herein. As illustrated, the insole 500 includes an arch portion 502 and a heel portion 504. In the arch portion 502, the insole 500 includes a contour 510. The insole 500 can include the body portion 550 and a shank 552. In some implementations, the insole 500 can include an arch support structure. The arch support structure can be a layer of the body portion 550. The shank 552 can be attached to the body portion 550. In the heel portion 504, the insole 500 includes a heel cup 520. The contour 510 includes a front incline 512 which extends from a front edge of the arch portion 502 upward towards an apex 514. The apex 514 is positioned rearward from the front edge of the arch portion 502 and forward from the heel portion 504. The contour 510 includes a rear incline 516 which extends from the apex 514 downward towards the heel portion 504. The rear incline 516 can curve upward from a heel strike zone in the heel portion 504 towards the apex 514. The rear incline 516 can advantageously improve the natural alignment and stability of the wearer’s foot on the insole 500. The rear incline 516 connects the non-w’eight bearing contour 510 to the heel cup 520. The heel cup 520 includes a center of the heel 522. The heel cup 520 can form a cup shape around the center of the heel 522 to secure a wearer’s foot in position. The heel cup 520 extends forward and upward from the center of the heel 522 to connect tothe rear incline 516 and upward and rearward from the center of the heel 522 to the rear edge of the heel portion 504.

[0084] The heel cup 520 can secure a wearer’s heel in place relative to the insole 500. The contour 510 can apply pressure to the wearer’s arch when the wearer’s foot is raised off the ground.

[0085] The insole 500 can include an apex angle from the medial side to the lateral side. The apex angle can be between 0 degrees and 10 degrees. Advantageously, the apex angle between 0 and 10 degrees can distribute pressure evenly across the medial and lateral sides of the wearer’s foot. The insole 500 can include a bottom side feature contoured to the apex angle of the insole 500 from the medial side to the lateral side.

[0086] The insole 500 can include additional cushioning layers. The insole 500 can include ventilation holes in the body portion 550 and / or in the shank 552, The insole 500 can include a color demarcating that the insole is a certain size and / or has a certain arch height. The materials, thickness, shapes, and / or flexibility of the components of the insole 500 can be adjusted to adapt to user preferences.

[0087] The shank 552 can be a replaceable or removable component of the insole 500. The shank 552 can reversibly or removably be disengaged from the body portion 550. In some embodiments, the insole 500 may be a kit including a body portion 550 and one or more shanks 552. The shanks 552 in the kit can have the same or different apex heights. The shanks 552 can be produced or packaged separately from the body portion 550 such that the shank 552 can be replaced as desired. The replaceable shank 552 can advantageously extend the life of the insole 500. The replaceable shank 552 can advantageously allow for shanks 552 having various therapeutic properties to target various maladies and / or comfort levels.

[0088] The insole 500 can flex when a wearer applies force to the insole 500, for example by the wearer putting weight on their foot. This can cause the insole 500 to transition between a weight bearing configuration to a non-weight bearing configuration and back again. The apex 514 has an exaggerated height (e.g., is higher than a wearer’s arch when unconstrained). The apex 514 is designed to flex downward with the application of force on the insole 500 (e.g., in the weight bearing configuration). The apex 514 can retract upward as the wearer’s foot lifts (e.g., in the non-weight bearing configuration). The bounce-back of the apex mechanism is facilitated by the material properties and structural design of the insole 500.The material properties and structural design of the insole 500 can ensure durability and consistent performance. The shank 552 can provide a force to the wearer’s foot while the wearer’s foot is elevated such that little to no force is applied by the wearer’s foot to the insole 500 or when the wearer is stepping on the insole 500. The transition can occur for example while the wearer walks. Advantageously, this transition can facilitate the application of consistent pressure to the arch of the wearer’s foot throughout the wearer’s gait cycle.

[0089] The insole 500 can be used to provide support for a wearer’ s foot. The insole 500 can be supplied to the wearer. The insole 500 can be positioned under an arch of the wearer’s foot. The insole 500 can provide consistent arch support to the arch of the foot throughout the wearer’s gait.

[0090] The insole 500 can flex and retract uniformly, such that the insole 500 does not lean inwards or outwards. The insole 500 can ensure that the deformation and subsequent return to the original shape can occur evenly across the length and width of the insole 500.

[0091] The insole 500 can apply dynamic pressure which can advantageously support the wearer’ s foot arch. The insole 500 can support the wearer’ s foot arch and flex under pressure. The insole 500 can provide continuous support for the wearer during activity or rest. Unlike static insoles, the insole 500 can maintain engagement throughout the wearer’s gait cycle and can provide continuous support on the foot’s muscles and tissues.

[0092] The insole 500 can advantageously distribute pressure equally due to the contoured shape of the insole 500. Advantageously, the insole 500 can balance pressure across the medial and lateral sides of the wearer’s foot.

[0093] FIGS. 6A and 6B illustrate cross-sectional views of an insole 600A / 600B (respectively) disposed in a shoe 900. FIG. 6A illustrates an unconstrained insole 600A interior to a shoe 900. FIG. 6B illustrates an insole 600B in a weight bearing configuration with a wearer’s foot 910 disposed in the shoe 900 over the insole 600B.

[0094] The shoe 900 can be a boot, a shoe, a sandal, a slipper, or another form of footwear. The insole 600 can be integral to the shoe 900. The insole 600 can be adhered to the shoe 900. The insole 600 can be reversibly removable and / or replaceable from the shoe 900. The insole 600 can be adhered to or bonded to the shoe 900. The insole 600 is positioned interior to the shoe 900. As illustrated, the insole 600 can flex independently from the shoe 900. In some implementations, the insole 600 can flex with the shoe 900.

[0095] The shoe 900 and insole 600 can be components of a system or a kit. In some examples, the kit can include one or more insoles 600. The insoles 600 in the kit can include various arch heights as described herein.

[0096] As illustrated in FIG. 6A, the insole 600A can include an unconstrained contour 610A and a heel cup 620 A. The unconstrained contour 610A includes a front incline 612A which extends from a front edge upward towards an apex 614A (e.g., a retraction point). The apex 614 A is positioned rearward from the front edge and forward from the heel cup 620A. The unconstrained contour 610A includes a rear incline 616A which extends from the apex 614A downward towards the heel cup 620 A. The rear incline 616A connects the unconstrained contour 610A to the heel cup 620 A. The heel cup 620A includes a curved cup shape to secure the insole 600A in position relative to the wearer’s foot. The heel cup 620A connects to the rear incline 616.

[0097] As illustrated in FIG. 6B, the insole 600B can include a weight bearing contour 610B and a heel cup 620B. The weight bearing contour 610B includes a front incline 612B which extends from a front edge upward towards an apex 614B (e.g., a retraction point). The apex 614B is positioned rearward from the front edge and forward from the heel cup 620B. The weight bearing contour 610B includes a rear incline 616B which extends from the apex 614B downward towards the heel cup 620B. The rear incline 616B connects the unconstrained contour 610B to the heel cup 620B. The heel cup 620B includes a curved cup shape to secure the insole 600B in position relative to the wearer’s foot 910. The heel cup 620B connects to the rear incline 616B.

[0098] The wearer’s foot 910 is disposed in the shoe 900. The wearer’s foot 910 is positioned over the insole 600B. The wearer’s foot 910 applies pressure to the insole 600B. The weight bearing contour 610B is pre-loaded from the unconstrained configuration insole 600 A illustrated in FIG. 6A such that the weight bearing contour 610B applies a reaction pressure 680B to the wearer’s foot 910. Advantageously, the reaction pressure 680B can be dynamic and vary depending on how much pressure the wearer is applying to the foot 910 (e.g., walking, standing, and / or distributing weight).

[0099] FIGS. 7A and 7B illustrate top perspective and bottom perspective views respectively of an insole 700. The insole 700 can include any of the features described with reference to FIGS. 1 A-6B herein.

[0100] As illustrated, the insole 700 includes an arch portion 702, a heel portion 704, and a toe portion 706. In the arch portion 702, the insole 700 includes a contour 710. The insole 700 can include the body portion 750 and a shank 752. In some implementations, the insole 700 can include an arch support structure. The arch support structure can be a layer of the body portion 750. The shank 752 can be attached to the body portion 750. In the heel portion 704, the insole 700 includes a heel cup 720. The contour 710 includes a front incline 712 which extends from a front edge of the arch portion 702 upward towards an apex 714. The apex 714 is positioned rearward from the front edge of the arch portion 702 and forward from the heel portion 704. The contour 710 includes a rear incline 716 which extends from the apex 714 downward towards the heel portion 704. The rear incline 716 can curve upward from a heel strike zone in the heel portion 704 towards the apex 714. The rear incline 716 can advantageously improve the natural alignment and stability of the wearer’s foot on the insole 700.

[0101] The rear incline 716 connects the contour 710 to the heel cup 720. The shank 752 can wrap around the heel cup 720. The shank 752 can support the connection of the rear incline 716 to the heel cup 720. The heel cup 720 includes a center of the heel 722. The heel cup 720 can form a cup shape around the center of the heel 722 to secure a wearer’s foot m position. The heel cup 720 extends forward and upward from the center of the heel 722 to connect to the rear incline 716 and upward and rearward from the center of the heel 722 to the rear edge of the heel portion 704.

[0102] The front incline 712 can connect to a longitudinally compressible region 770. The longitudinally compressible region 770 can be adjacent to the arch support structure. The longitudinally compressible region 770 can be in the toe portion 706. The longitudinally compressible region 770 can extend from the front incline 712 away from the arch portion 702. The longitudinally compressible region 770 can extend towards the wearer’s toes. The longitudinally compressible region 770 can extend the remaining length of the insole 700. The longitudinally compressible region 770 can connect to a toe body portion 772. The toe body portion 772 can support and cushion the ball and toe regions of a wearer’s foot.

[0103] The longitudinally compressible region 770 can advantageously compress as the wearer’s body weight compresses the contour 710 such that the length of the insole 700 from the tip of the toe body portion 772 to the heel cup 720 does not increase as the contour710 is compressed. The longitudinally compressible region 770 can compress longitudinally (e.g., along the length of the insole 700) such that the overall length of the insole 700 is maintained as the contour 710 is compressed or expands. The longitudinally compressible region 770 can include a hollow grid shape which can compress or expand within itself. Advantageously, the longitudinally compressible region 770 can allow’ for the insole 700 to be sized like a conventional insole to be the exact shape of the interior of a shoe while inhibiting bunching or folding of the insole 700 when used in a shoe.

[0104] The toe body portion 772 can be formed from the same material as the body portion 750. The toe body portion 772 can include layers and can pad or cushion the ball and toes of the wearer.

[0105] The heel cup 720 can secure a wearer’s heel in place relative to the insole 700. The contour 710 can apply pressure to the wearer’s arch when the wearer’s foot is raised off the ground.

[0106] The insole 700 can include an apex angle from the medial side to the lateral side. The apex angle can be between 0 degrees and 10 degrees. Advantageously, the apex angle between 0 and 10 degrees can distribute pressure evenly across the medial and lateral sides of the wearer’s foot. The insole 700 can include a bottom side feature contoured to the apex angle of the insole 700 from the medial side to the lateral side.

[0107] The insole 700 can include additional cushioning layers. The insole 700 can include ventilation holes in the body portion 750, toe body portion 772, and / or in the shank 752. The msole 700 can include a color demarcating that the insole is a certain size and / or has a certain arch height. The materials, thickness, shapes, and / or flexibility’ of the components of the msole 700 can be adjusted to adapt to user preferences.

[0108] The shank 752 can be a replaceable or removable component of the insole 700. The shank 752 can reversibly or removably be disengaged from the body portion 750. In some embodiments, the insole 700 may be a kit including a body portion 750 and one or more shanks 752. The shanks 752 in the kit can have the same or different apex heights. The shanks 752 can be produced or packaged separately from the body portion 750 such that the shank 752 can be replaced as desired. The replaceable shank 752 can advantageously extend the life of the insole 700. The replaceable shank 752 can advantageously allow for shanks 752 having various therapeutic properties to target various maladies and / or comfort levels.

[0109] The insole 700 can flex when a wearer applies force to the insole 700, for example by the wearer putting weight on their foot. This can cause the insole 700 to transition between a weight bearing configuration to a non-w’eight bearing configuration and back again. The apex 714 has an exaggerated height (e.g., is higher than a wearer’s arch when unconstrained). The apex 714 is designed to flex downward with the application of force on the insole 700 (e.g., in the weight bearing configuration). The apex 714 can retract upward as the wearer’s foot lifts (e.g., in the non-weight bearing configuration). As the apex 714 flexes downward, the contour 710 can increase in length. The longitudinally compressible region 770 can compress as the contour 710 increases in length to maintain the overall length of the insole 700. As the apex 714 flexes upward, the contour 710 can decrease in length. The longitudinally compressible region 770 can decompress as the contour 710 decreases in length to maintain the overall length of the insole 700. The longitudinally compressible region 770 can be configured to absorb a change in length of the arch support structure as the arch support structure transitions from the weight bearing configuration to the non-weight bearing configuration. The bounce-back of the apex mechanism is facilitated by the material properties and structural design of the insole 700. The material properties and structural design of the insole 700 can ensure durability and consistent performance. The shank 752 can provide a force to the wearer’s foot while the wearer’s foot is elevated such that little to no force is applied by the wearer’s foot to the insole 700 or when the wearer is stepping on the insole 700. The transition can occur for example while the wearer walks. Advantageously, this transition can facilitate the application of consistent pressure to the arch of the wearer’s foot throughout the wearer’s gait cycle.

[0110] The insole 700 can be used to provide support for a wearer’s foot. The insole 700 can be supplied to the wearer. The insole 700 can be positioned under an arch of the wearer’s foot. The insole 700 can provide consistent arch support to the arch of the foot throughout the wearer’s gait.

[0111] The insole 700 can flex and retract uniformly, such that the insole 700 does not lean inwards or outwards. The insole 700 can ensure that the deformation and subsequent return to the original shape can occur evenly across the length and width of the insole 700.

[0112] The insole 700 can apply dynamic pressure which can advantageously support the wearer’ s foot arch. The insole 700 can support the wearer’ s foot arch and flex underpressure. The insole 700 can provide continuous support for the wearer during activity or rest. Unlike static insoles, the insole 700 can maintain engagement throughout the wearer’s gait cycle and can provide continuous support on the foot’s muscles and tissues.

[0113] The insole 700 can advantageously distribute pressure equally due to the contoured shape of the insole 700. Advantageously, the insole 700 can balance pressure across the medial and lateral sides of the wearer’s foot.

[0114] FIG. 8 illustrates two examples of a longitudinally compressive region, 870A and 870B respectively of an insole 800 including a body portion 850 and a toe body portion 872, The longitudinally compressible region 870A includes a hollow grid. The hollow grid includes a plurality of rows of oval openings 874A. The oval openings 874A are connected via a grid structure 876A. The oval openings 874A can be longer laterally than longitudinally such that the longitudinally compressible region 870 A is more compressive longitudinally than laterally. The oval openings 874A can be compressed to decrease the length of the longitudinally compressible region 870A. The grid structure 876A can maintain the height of the insole 800 from the body portion 850 to the toe body portion 872 through the longitudinally compressible region 870A.

[0115] The longitudinally compressible region 870B includes a hollow grid. The hollow grid includes a plurality of rows of diamond openings 874B. The diamond openings 874B are connected via a grid structure 876B. The diamond openings 874B can be longer laterally than longitudinally such that the longitudinally compressible region 870B is more compressive longitudinally than laterally. The diamond openings 874B can be compressed to decrease the length of the longitudinally compressible region 870B. The grid structure 876B can maintain the height of the insole 800 from the body portion 850 to the toe body portion 872 through the longitudinally compressible region 870B.

[0116] FIG. 9 illustrates a bar plot of survey results before and after insole use. The survey included 6 participants. Each participant was asked to state their foot pam before using an insole on a scale from 1-10. Then, each participant was provided with insoles including the features described herein. The participants then stated their foot pam after using the insoles including the features described herein. As illustrated in FIG. 9, each participant stated that their foot pain was lower after using the insoles. Further, 4 of the 6 participants stated that theirfoot pain was reduced to 1 after wearing the insoles. The survey results demonstrate that the insoles described herein can advantageously reduce a wearer’s foot pain.ADDITIONAL IMPLEMENTATIONS

[0117] It is to be understood that not necessarily all objects or advantages may be achieved in accordance with any particular implementation described herein. Thus, for example, those skilled in the art will recognize that certain implementations may be configured to operate in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other objects or advantages as may be taught or suggested herein.

[0118] The various features and processes described herein may be used independently of one another or may be combined in various ways. All possible combinations and sub-combinations are intended to fall within the scope of this disclosure. The example systems and components described herein may be configured differently than described. For example, elements may be added to, removed from, or rearranged compared to the disclosed example implementations.

[0119] Conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain implementations include, while other implementations do not include, certain features, elements and / or steps. Thus, such conditional language is not generally intended to imply that features, elements and / or steps are in any way required for one or more implementations.

[0120] Disjunctive language such as the phrase “at least one of X, Y, or Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to present that an item, term, and so forth, may be either X, Y, or Z, or any combination thereof (for example, X, Y, and / or Z). Thus, such disjunctive language is not generally intended to, and should not, imply that certain implementations require at least one of X, at least one of Y, or at least one of Z to each be present.

[0121] Unless otherwise explicitly stated, articles such as “a” or “an” should generally be interpreted to include one or more described items. Accordingly, phrases such as“a device configured to” are intended to include one or more recited devices. Such one or more recited devices can also be collectively configured to carry’ out the stated recitations.

[0122] It should be emphasized that many variations and modifications may be made to the herein-described implementations, the elements of which are to be understood as being among other acceptable examples. All such modifications and variations are intended to be included herein within the scope of this disclosure. The section headings used herein are merely provided to enhance readability and are not intended to limit the scope of the implementations disclosed in a particular section to the features or elements disclosed in that section. The foregoing description details certain implementations. It will be appreciated, however, that no matter how detailed the foregoing appears in text, the systems and methods can be practiced in many ways. As is also stated herein, it should be noted that the use of particular terminology when describing certain features or aspects of the systems and methods should not be taken to imply that the terminology is being re-defined herein to be restricted to including any specific characteristics of the features or aspects of the systems and methods with which that terminology is associated.

Claims

WHAT IS CLAIMED IS:

1. A foot support device comprising:an arch support structure comprising a pre-loaded spring force configured to compress under pressure from a foot to a weight bearing configuration and retract as the pressure from the foot is removed to a non-weight bearing configuration.

2. The foot support device of claim 1, further comprising a shank disposed under the arch support structure, the shank comprising a semi-rigid material.

3. The foot support device of claim 2, further comprising an additional cushioning layer disposed over the arch support structure.

4. The foot support device of any one of claims 1-3, wherein the arch support structure comprises an apex, a front incline extending from a front edge of the arch support structure upward towards the apex, a rear incline extending from the apex downward towards a heel cup, wherein the heel cup is configured to secure a wearer’s heel.

5. The foot support device of claim 4, wherein the heel cup comprises a cup shape.

6. The foot support device of any one of claims 1-5, wherein the arch support structure comprises an apex in an arch portion of the arch support structure, wherein a height of the apex is greater than 25 mm in the non-weight bearing configuration.

7. The foot support device of any one of claims 1-6, wherein the arch support structure comprises an apex angle from a medial side to a lateral side from 0 to 10 degrees.

8. The foot support device of claim 2 or 3, wherein the shank comprises an apex angle from a medial side to a lateral side from 0 to 10 degrees.

9. The foot support device of any one of claims 1-8, wherein the arch support structure is configured to flex and retract uniformly when transitioning between the weight bearing configuration and the non-weight bearing configuration.

10. The foot support device of claim 2 or 3, wherein the shank is reversibly removable.

11. The foot support device of any one of claims 1-10, wherein in the non-weight bearing configuration the arch support structure is compressed relative to an unconstrained position.

12. The foot support device of any one of claims 1-11, further comprising a longitudinally compressible region disposed adjacent to the arch support structure, thelongitudinally compressible region configured to absorb a change in length of the arch support structure as the arch support structure transitions from the weight bearing configuration to the non-weight bearing configuration.

13. A kit comprising:the foot support device of any one of claims 1-12; anda shank comprising a semi-rigid material.

14. The kit of claim 13, further comprising an additional shank.

15. The kit of claim 14, wherein the shank comprises a first arch height and the additional shank comprises a second arch height that is higher than the first arch height.

16. The kit of any one of claims 13-15, further comprising a shoe.

17. A method of supporting an arch of a foot, the method comprising:providing a foot support device;positioning the foot support device under an arch of a wearer’s foot; and providing consistent arch support to the arch of the foot via the foot support device throughout the wearer’s gait.

18. The method of claim 17, further comprising positioning a heel of the wearer’s foot in a heel cup of the foot support device.

19. The method of claim 17 or 18, wherein the foot support device comprises an insole.

20. The method of any one of claims 17-19, further comprising preloading the foot support device.

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