ANKLE FOOT ORTHOTIC ASSEMBLY
20240041156 ยท 2024-02-08
Inventors
Cpc classification
International classification
Abstract
An ankle foot orthotic assembly may have an ankle foot brace configured to be inserted into an interior cavity of a protective foot covering. The ankle foot brace is configured to receive a removable insole and a user's ankle and foot, the bottom portion inwardly extending along a perimeter of the rear heel portion, the internal foot side portion, the external foot side portion, the removable insole having a bottom surface configured to be inserted adjacent to a top portion of the inwardly extending bottom portion. The brace has releasable straps to secure the insole and the user's ankle and foot inside a cavity formed by the brace. The insole is configured with an angular incline from a ball of the foot regain to distal toe region at an angle of between 18 and 30 degrees.
Claims
1-16. (canceled)
17. An ankle foot orthotic assembly, comprising: an ankle foot brace configured to be inserted into an interior cavity of a protective foot covering, the ankle foot brace having a rear heel portion, an internal foot side portion, an external foot side portion and a bottom portion, the ankle foot brace configured to receive a removable insole and a user's ankle and foot, the bottom portion inwardly extending along a perimeter of the rear heel portion, the internal foot side portion, the external foot side portion, the removable insole having a bottom surface configured to be inserted adjacent to a top portion of the inwardly extending bottom portion, the ankle foot brace having a plurality of releasable straps to secure the insole and the user's ankle and foot inside a cavity formed by the rear heel portion, the internal foot side portion, the external foot side portion, and bottom portion, and wherein the insole is configured with an angular incline from a ball of the foot regain to distal toe region at an angle of between 18 and 30 degrees.
18. The ankle foot orthotic of claim 17, wherein the protective foot covering is a boot having an integral fastenable flap to allow, when opened, insertion of the ankle foot brace and to hold the ankle foot brace in place when closed and retained on the user's foot and lower leg.
19. The ankle foot orthotic of claim 17, wherein each of the releasable straps is releasable by one of a hook and loop fastener and a buckle.
20. The ankle foot orthotic of claim 18, wherein the fastenable flap is fastenable by one of a hook and loop fastener and a buckle.
21. The ankle foot orthotic of claim 17, ankle foot brace and/or insole are composed of at least one of a plastics, rubber, composites, graphite, fiberglass, plastics and resins in extruded form such as those sold under the tradename PORON, metal, and the like and combinations thereof.
22. The ankle foot orthotic of claim 17, wherein the releasable straps are threaded though openings in the ankle foot brace at predetermined positions.
23. The ankle foot orthotic of claim 17, wherein the insole is comprised of a compressible resilient top portion and a rigid lower portion.
24. The ankle foot orthotic of claim 18, wherein the decorative laces are applied to a tongue portion of the boot.
24. The ankle foot orthotic of claim 18, wherein the boot conceals the ankle foot brace on a user when the boot is worn, the boot being configured to extend upwardly on the user's lower leg, the fastenable flap being positionable in an open position thereby exposing an interior of said boot wherein the fastenable flap and is configured to enhance the user's ability to position their foot and lower leg into the boot, the boot having mateable zipper fasteners, wherein when the ankle foot brace and insole assembly are fastened within the interior boot cavity the user's lower leg and the user's foot are engaged thereby facilitating the ankle foot orthotic to aid with foot drop syndrome in the user.
25. The ankle foot orthotic of claim 17, wherein the plurality of releasable straps comprises three releasable straps with hook and loop fasteners, and configured so that one releasable strap is on the ankle portion of the ankle foot brace and two releasable straps are on the foot portion of the ankle foot brace.
26. The ankle foot orthotic of claim 17, wherein an angular incline from a ball of the foot regain to distal toe region at an angle of 21 degrees.
27. A kit for an ankle foot orthotic, comprising: an ankle foot brace according to claim 18, an insole, and a plurality of toe inserts and/or heel inserts of varying inclines from 10 to 30 degrees.
28. A method to assemble an ankle foot orthotic, comprising: providing a kit for an ankle foot orthotic according to claim 27, providing a gait analysis of a user without an ankle foot orthotic, providing a gait analysis of a user with the ankle foot orthotic over a plurality of heel and/or toe insert combinations installed within a boot, selecting the heel and/or toe insert combination corresponding to the most improved gate analysis when compared against the gate analysis of a user without an ankle foot orthotic, and installing the heel and toe insert combination under the insole but within the cavity of the ankle foot brace.
29. The method of claim 28, further comprising, placing the user's foot in the cavity of the cavity of the ankle foot brace, securing the user's foot within the cavity of the ankle foot brace using the plurality of releasable straps, placing the user's foot with the ankle foot brace within the boot, and securing the boot integral fastenable flap to hold the ankle foot brace in place and retained on the user's foot and lower leg.
30. The ankle foot orthotic of claim 17, wherein the ankle foot brace is composed of a rigid TPU shell with soft EVA liners. Other embodiments may include graphite and other 3D printed composites.
31. The ankle foot orthotic of claim 30, wherein the ankle foot brace composition is configured to be resilient and deformable to reduce the distance between to distal ends of the wings by up to 25 percent.
32. The ankle foot orthotic of claim 17, wherein the ankle foot brace and insole are in mirror image pairs configured for a user's left and right ankle and foot.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
[0046]
[0047]
[0048]
[0049]
DETAILED DESCRIPTION
[0050] With reference now to the drawings, and in particular to
[0051] As best illustrated in
[0052] The boot 12 has a foot portion 20 that surrounds the user's foot 14 and the boot 12 has a leg portion 22 extending upwardly from the foot portion 20 to surround the user's lower leg 16. The leg portion 22 has a top end 24 that is open to define an opening 26 into the leg portion 22 to facilitate the user's lower leg 16 to extend therethrough. The leg portion 22 has an outward side 28 that is positioned on a lateral aspect 29 of the user's lower leg 16 when the boot 12 is worn. Additionally, the leg portion 22 has a back quarter 30 and the back quarter 30 is comprised of a rigid material to assist with supporting the user's lower leg 16 and the user's foot 14 when the boot 12 is worn. The boot 12 may be comprised of leather or any other type of material that meets the user's preference for the overall style and appearance of the boot 12.
[0053] The foot portion 20 has a sole 32 and a toe 34, and the foot portion 20 has an inward side 36 that is positioned on a medial side 37 of the user's foot 14 when the boot 12 is worn. The boot 12 has a cut 38 extending therethrough, and the cut 38 has a first portion 40 extending downwardly from the top end 24 of the leg portion 22 along the outward side 28 of the leg portion 22. Additionally, the cut 38 has a second portion 42 extending along the foot portion 20 of the boot 12. The second portion 42 is spaced from the sole 32 and the second portion 42 is oriented to extend along a line that is oriented perpendicular to the first portion 40. Moreover, the second portion 42 extends around the toe 34 to terminate on the inward side 36 of the foot portion 20. In this way the first portion 40 and the second portion 42 of the cut 38 defines the flap 18, and the cut 38 has a first edge 44 and a second edge 46.
[0054] A first fastener 48 is coupled to the boot 12 and the first fastener 48 is coextensive with the first edge 44 of the cut 38. A second fastener 50 is coupled to the flap 18 and the second fastener 50 is mateable to the first fastener 48 for retaining the flap 18 in the closed position. The second fastener 50 is un-mateable from the first fastener 48 to facilitate the flap 18 to be positioned in the open position, and the second fastener 50 is coextensive with the second edge 46 of the cut 38. Each of the first fastener 48 and the second fastener 50 may comprise complementary halves of a zipper or other type of mechanically releasable fastening device.
[0055] A cover 52 is provided and the cover 52 is coupled to the boot 12. The cover 52 covers a substantial amount of the first fastener 48 and the second fastener 50 when the flap 18 is in the closed position. In this way the cover 52 inhibits an observer from seeing the first fastener 48 and the second fastener 50 thereby enhancing the user's self-confidence the user is wearing the boot 12. The cover 52 is positioned on the foot portion 20 of the boot 12 and the cover 52 is coextensive with the second portion 42 of the cut 38. Moreover, the cover 52 extends downwardly over the second portion 42 of the cut 38 when the flap 18 is in the closed position for concealing the first fastener 48 and the second fastener 50 along the foot portion 20 of the boot 12. The boot 12 may be manufactured to custom specifications as required by orthotic specialists to facilitate a custom fit for any user.
[0056] An ankle foot orthotic 54 is integrated into the boot 12 and the ankle foot orthotic 54 engages the user's lower leg 16 and the user's foot 14 when the user wears the boot 12. In this way the ankle foot orthotic 54 can aid with foot drop syndrome in the user.
[0057] The ankle foot orthotic 54 is positioned inside the boot 12 such that the ankle foot orthotic 54 is concealed from observers thereby enhancing the user's self-confidence.
[0058] The ankle foot orthotic 54 comprises a first strap 56 that has a first end 58, a second end 60 and a first surface 62 extending therebetween, and the first strap 56 is elongated between the first end 58 and the second end 60. The first end 58 is coupled to an inside surface 64 of the back quarter 30 of the leg portion 22 of the boot 12 at a point that is located on an opposite side of the leg portion 22 with respect to the cut 38. Moreover, the first strap 56 is oriented to extend along a horizontal axis thereby facilitating the first strap 56 to be wrapped around the user's lower leg 16 when the user wears the boot 12. The first strap 56 is spaced from the top end 24 of the leg portion 22.
[0059] The ankle foot orthotic 54 includes a first mating member 66 that is coupled to the first surface 62 of the first strap 56. The first mating member 66 is positioned adjacent to the second end 60 of the first strap 56. Additionally, the ankle foot orthotic 54 includes a second mating member 68 that is coupled to the inside surface 64 of the back quarter 30 of the leg portion 22 of the boot 12 at a point is located adjacent to the first edge 44 of the cut 38. The second mating member 68 is positioned adjacent to the top end 24 of the leg portion 22 and the first mating member 66 is releasably mateable to the second mating member 68. Each of the first mating member 66 and the second mating member 68 may comprise a hook and loop fastener or other type of releasable fastener.
[0060] The ankle foot orthotic 54 includes a second strap 70 that has a primary end 72, a secondary end 74 and a primary surface 76 extending therebetween, and the second strap 70 is elongated between the primary end 72 and the secondary end 74. The primary end 72 is coupled to an inside surface 78 of the foot portion 20 of the boot 12 at a point that is located on the same side of the boot 12 with respect to the first strap 56. Additionally, the second strap 70 is centrally positioned between the leg portion 22 of the boot 12 and the toe 34 of the foot portion 20 of the boot 12. In this way the second strap 70 can extend over the 79 instep of the user's foot 14 when the user wears the boot 12.
[0061] The ankle foot orthotic 54 includes a primary mating member 80 that is coupled to the primary surface 76 of the second strap 70. The primary mating member 80 is positioned adjacent to the secondary end 74 of the second strap 70. The ankle foot orthotic 54 includes a secondary mating member 82 that is coupled to the inside surface 64 of the foot portion 20 of the boot 12 at a point that is located adjacent to the first edge 44 of the cut 38. The secondary mating member 82 is centrally positioned between the leg portion 22 of the boot 12 and the toe 34 of the foot portion 20 of the boot 12. Additionally, the primary mating member 80 is releasably mateable to the secondary mating member 82. Each of the primary mating member 80 and the secondary mating member 82 may comprise a hook and loop fastener or other type of releasable fastener.
[0062] An instep pad 84 that is positionable beneath the second strap 70 when the ankle foot orthotic 54 is worn to enhance comfort for the user's foot 14. The instep pad 84 has a first surface 86 and a perimeter edge 88, and the first surface 86 of the instep pad 84 is concavely arcuate with respect to the perimeter edge 88. In this way the first surface 86 can conform to curvature of the instep 79 of the user's foot 14. The perimeter edge 88 has a front side 90 and a back side 92, the back side 92 extends along a straight line and the front side 92 is rounded. Additionally, the instep pad 84 is comprised of a resiliently compressible material.
[0063] In use, the flap 18 is positioned in the open position to facilitate the user to wear the boot 12. The first strap 56 is extended across the user's lower leg 16 to facilitate the first mating member 66 to be mated to the second mating member 68. The second strap 70 is extended over the user's foot 14 to facilitate the primary mating member 80 to be mated to the secondary mating member 82. The flap 18 is positioned in the closed position and the first fastener 48 and second fastener 50 are mated to close the flap 18. In this way the boot 12 facilitates the ankle foot orthotic 54 to be employed by the user in a stylish manner that is visually appealing and that additionally conceals the ankle foot orthotic 54 from observers.
[0064] The present embodiments represent an improvement in orthotic technology, particularly ankle foot orthoses (AFOs) and/or supramalleolar orthoses (SMOs) in key areas of a user's gait. The results provide freedom, movement, and quality of life for a user. The utility of the present embodiments is clear in its performance compared to prior art AFO's. In direct comparisons, the tables below demonstrate the capability of the present embodiments to enhance walking speed by 14.86% and cadence by 5.93% compared to traditional AFOs. Such improvements translate to improved mobility, increased independence, and considerable enhancement in the user's quality of life. In a comprehensive gait lab analysis of the embodiments shown in
TABLE-US-00001 Performance Evaluation Comparing the ankle foot orthotic to traditional Ankle Foot Orthoses (AFOs) across six key gait parameters: Speed, Cadence, Stance, Swing, Step/Leg Length Ratio, and Initial Double Support. Results: Present ankle foot Prior art Percentage Gait Parameter orthotic embodiment AFO Difference Speed 0.85 0.74 +14.86% Cadence 125 118 +5.93% As for the Stance, Swing, Step/Leg Length Ratio, and Initial Double Support parameters, both the present embodiment and the prior art AFO scored zero, resulting in a 0% difference.
TABLE-US-00002 Differences in gait parameters between the left and right feet were also examined. Prior art Percentage Gait Parameter Left present embodiment LAFO Difference Stance 62 64 3.13% Swing 38 36 +5.56% Step/Leg Length 78 73 +6.85% Ratio Initial Double 11 14 21.43% Support Percentage Gait Parameter Right present embodiment RAFO Difference Stance 56 57 1.75% Swing 44 43 +2.33% Step/Leg Length 87 79 +10.13% Ratio Initial Double 7 8 12.5% Support
[0065] The present embodiments deliver balanced performance across both of a user's legs, offering excellent adaptability. Seamlessly integrating the present AFO embodiments within a regular piece of footwear, for example a boot, improves the medical device aesthetic, reducing the stigma often associated with orthotic use. This innovative approach fosters a greater sense of comfort and confidence among users, significantly improving their quality of life.
[0066] The present embodiments may be realized in a variety of compositions such as: Carbon Fiber AFOs, Plastic AFOs, Metal AFOs, and the like and combinations thereof. Carbon Fiber is known for its strength and lightweight properties, while Plastic embodiments may be more affordable but may not offer the same level of durability and performance. Metal embodiments may also be considered. Specifically, the present embodiments, particularly its insole and ankle brace portions, can be constructed from various materials such as plastics, rubber, composites, graphite, fiberglass, plastics and resins in extruded form such as those sold under the tradename PORON, metal, and the like and combinations thereof. Each material has unique properties, and the aim is to balance durability, flexibility, and user comfort. In a preferred embodiment, a combination of a rigid thermoplastic polyurethane (TPU) shell with soft ethylene-vinyl acetate (EVA) liners may be used. Other embodiments may include graphite and other 3D printed composites.
[0067] The flexibility of the present embodiments, especially in the toe portion, is designed to allow for a natural uplift in the toe portion. The inclined effect, either by a rigid insole or by a predetermined toe insert is comparable to walking in high heels without the hill portion on the back end of the foot. This toe incline is to naturally shift the body's weight to a more natural gait form with a user with cerebral palsy.
[0068] While the present embodiments provide a degree of deformability to mold to the user's foot shape, it also provides some elasticity and resiliency to ensure ensures the brace returns to its original shape after being stretched or compressed, thus maintaining its structural integrity over time.
[0069] With reference now to the drawings, and in particular to
[0070]
[0071] Orthotic device 100 has an interior cavity 108 with an ankle portion 112, a foot portion 114, an internal orthotic brace inwardly extending edge 116, and forward extending wings 118. As shown in
[0072]
[0073] As shown in
[0074] Insole 200 may have an insole top layer 224 and an insole bottom layer 224. Top layer 224 may be a gel or foam to provide comfort to a user, while the bottom layer 224 may provide support and rigidity to provide the desired toe inclination and be formed of a rigid plastic or composite and the like.
[0075] As shown in
[0076] Optionally, in some embodiments a flexible insole 200, such as a gel insole, may be provided and raised and/or inclined by the insertion of rigid/semi-rigid inserts. As shown in
[0077] In some embodiments, a kit 400 may be provided having an ankle foot orthotic with straps, an insole and a plurality of various sizes and shapes of toe inserts 230 and heel inserts 232 (See,
[0078] Optional footwear may also be provided. For example,
[0079] Further improvements to the boot may include aesthetically pleasing features such as laces, light emitting diodes, or other shoe decorations. By way of a non-limiting example,
[0080] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
[0081] Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word comprising is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article a does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements. Throughout this specification numerical labels of previously shown or discussed features may be reused to indicate similar features.