BRACE
20230018733 · 2023-01-19
Inventors
- Sean M. McDowell (Winchester, MA, US)
- Roderick McMullen (Boston, MA, US)
- Luke Ferdinands (Newton, MA, US)
Cpc classification
International classification
Abstract
A brace may include a knit portion with an ankle strap, a rigid shank on a bottom portion of the brace configured to cover at least an arch portion of the foot, a pad positioned below a heel of the foot, a webbing support system extending from the lateral extensor digitorum longus tendon around the peroneus longus retinaculum tendon, under the bottom of the foot to support the plantar tendon and up the arch and medial side of the foot to the extensor hallucis longus tendon, a lacing system threaded through a portion of the webbing support system at the top medial portion of the foot, and a tightening system that applies a pulling force on the lacing system to cinch the webbing support system.
Claims
1. A brace, comprising: a knit portion contoured for a foot; a shank contoured for a bottom of the foot so as to cover at least a portion of an arch of the foot; and a support system extending along at least part of the knit portion and structured to generate a force between the shank and the foot.
2. The brace of claim 1, wherein the support system is structured to extend from a lateral extensor digitorum longus tendon of the foot around a peroneus longus retinaculum tendon of the foot, under a bottom of the foot, and up the arch and a medial side of the foot to an extensor hallucis longus tendon of the foot.
3. The brace of claim 1 further comprising: a pad disposed on at least one of the knit portion or the shank at a location corresponding to a heel of the foot.
4. The brace of claim 3, wherein the pad comprises a closed cellular foam urethane.
5. The brace of claim 3, wherein the pad has a tear-drop shape.
6. The brace of claim 5, wherein the tear-drop shape is tapered.
7. The brace of claim 1 further comprising: an ankle strap structured to secure the knit portion to an ankle associated with the foot.
8. The brace of claim 1 further comprising: a lacing system threaded through a portion of the support system at a location corresponding to a top medial portion of the foot.
9. The brace of claim 8 further comprising: a tightening system structured to apply a force on the lacing system to cinch the support system against the foot.
10. The brace of claim 9, wherein the tightening system comprises at least one of: a rachet system; a barrel lock; or an adjustable clip.
11. The brace of claim 9 further comprising: an ankle strap structured to secure the knit portion to an ankle associated with the foot; wherein the tightening system is disposed on the ankle strap.
12. The brace of claim 9, wherein the tightening system is disposed on the knit portion.
13. The brace of claim 9, wherein the support system comprises webbing.
14. The brace of claim 13, wherein the webbing compromises a plurality of individual webbing portions each configured to be threaded by the lacing system.
15. The brace of claim 14, wherein: the plurality of individual webbing portions form a plurality of loops at a location corresponding to a top medial portion of the foot; and the brace further comprises: a thermoplastic polyurethane film welded over the plurality of loops.
16. The brace of claim 13, wherein the webbing weaves through one or more openings in the knit portions.
17. The brace of claim 13, wherein the webbing is a single continuous piece of webbing that forms a majority of the support system.
18. The brace of claim 9, wherein portions of the lacing system attach to the tightening system.
19. The brace of claim 18, wherein the portions of the lacing system terminate at the tightening system.
20. The brace of claim 8, wherein individual laces of the lacing system attach to one of a plurality of tightening systems for adjustment of a portion of the support system.
21.-61. (canceled)
Description
BRIEF DESCRIPTION OF THE FIGURES
[0019] The disclosure and the following detailed description of certain embodiments thereof may be understood by reference to the following figures:
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DETAILED DESCRIPTION
[0034] In an aspect, certain ankle or foot pathologies, such as plantar fasciitis or tendonitis, posterior tibial tendon dysfunction (PTTD), foot arthritis, ankle weakness or instability of the ankle-foot structure, may be mitigated by various taping methods (e.g. kinesiology taping, rehabilitative taping, therapeutic taping, etc.) and other rehabilitative or therapeutic approaches. Braces of the current disclosure may be effective at replicating a custom taping solution to provide stability and control to ankle foot structures. The brace may be light, breathable, strong and supportive. In embodiments, the brace may reduce weight displacement on the plantar tendon and mitigate and encourage recovery from various foot and ankle dysfunctions.
[0035] In embodiments, and referring to
[0036] In embodiments, the shank 1 may comprise glass-reinforced nylon, a polyether block amide (PEBA) or other thermoelastic polymer, a thermoplastic elastomer, a thermoplastic urethane, an ethylene vinyl acetate, a poly (ethylene vinyl acetate), a carbon fiber or any rigid plastic. In embodiments, the thickness may be between about 1 mm to about 2.5 mm thick. In certain embodiments, the thickness may exceed 2.5 mm. Holes 15 or other openings may be disposed in and distributed throughout the shank 1 and/or sock 2 to allow for comfort and breathability as heat vapor and moisture from sweat are dissipated from the bottom of the foot. In some embodiments, the holes 15 may be about 10 mm.sup.2.
[0037] In embodiments, the configuration of the shank 1 may be a cradle weave 14. The cradle weave 14 may be flatter on the lateral side of the foot to reduce irritation. Referring to
[0038] In embodiments, the shank 1 may be adhered to or otherwise joined or associated with a flat knit or circular knit sock 2 that provides a base structure of support while offering comfort. The sock 2 may be generally contoured to correspond to an ankle and/or foot structure. The sock 2 may provide thin and comfortable containment, keeping the shank 1 in place and providing for attachment of the webbing support system 3 and the lacing system 4. The knit sock 2 may comprise various threads or yarns which may be used to enhance breathability, support and flexibility. The yarns used may be polyester, spandex, thermo plastic urethane, monofilament yarns, carbon fiber, and/or cotton. In some embodiments, odor absorbent or wicking materials may be used. When placed on a foot, the sock 2 may be situated directly behind the metatarsal heads (or the ball of the foot), contain the majority of the foot, and extend to above the malleolus. In some embodiments, the sock 2 may cover the toes.
[0039] Attached to the sock 2 and the shank 1 may be a support system 3, which may include webbing (referred to herein as a webbing support system) formed from one or more of nylon or elastomeric bands, polyester yarns or thermoplastic bands. While the support system 3 is depicted herein as including webbing, it is to be understood that embodiments of the support system 3 may include features other than webbing (e.g., the support system may be a substantially monolithic and/or solid piece of material). The crisscross or woven structure of the webbing support system 3 may mirror or replicate a foot and/or ankle taping. The loops of the webbing support system 3 may wrap around the lateral side of the foot, the bottom of the foot and, as seen in
[0040] In embodiments, the webbing support system 3 may comprise a single piece of webbing continuously forming the webbing support system 3 and being attached to the sock 2 and disposed between the shank 1 and the sock 2. In some embodiments, the single piece of continuous webbing may be adhered to the shank 1 and/or sock 2 so that it doesn't move when the webbing support system 3 is tightened.
[0041] In other embodiments, the webbing support system 3 may comprise multiple portions of webbing, with the ends of each individual portion of webbing being attached to the shank 1 and/or sock 2. In embodiments, portions of the webbing may overlap with one another. Referring to
[0042] The webbing support system 3 may be attached to a lacing system 4 having a lace or multiple laces. The laces may include one or more of cotton, polyester or nylon cord. The lace or laces of the lacing system 4 may be threaded through the top of the webbing loops of the webbing support system 3. In some embodiments, the lacing system 4 may be integrated with the sock 2 to work as a single system. Portions of the lacing system 4 may attach to or terminate in a tightening system 5, which may be a ratchet system, barrel lock or adjustable clip. The tightening system 5 may be used to loosen or tighten the fit of the brace 100 by loosening or tightening the laces of the lacing system 4, which in turn relaxes or cinches the webbing support system 3 and completes the loop around the foot. Tightening the webbing support system 3 pulls the webbing loops towards the top of the foot on both sides of the foot.
[0043] Placement of the tightening system 5 on the ankle portion of the ankle foot orthosis enables adjustment while the user is wearing footwear over the ankle foot orthosis 100. The configuration of the webbing support system 3, lacing system 4, and ratchet 5 allows for individual adjustment and custom fitting around each person's unique anatomy in a strong and lightweight package.
[0044] In embodiments, individual laces of the lacing system 4 may attach to one of a plurality of tightening systems 5 for adjustment of the portion of the webbing support system 3 threaded through or otherwise associated with the lace. In this way, if differential tightening or support is desired across the ankle/foot, the user may be able to adjust each tightening system 5 of the plurality individually to arrive at the desired differential support.
[0045] In embodiments, the brace 100 may be secured and tightened without use of a ratchet 5. A lace may be threaded through the webbing support system 3 and manually tightened and secured in similar fashion to a shoelace tightening a shoe.
[0046] In an embodiment, and referring to
[0047] Referring to
[0048] In embodiments, a soft, closed cellular foam urethane pad 8, such as made from polyurethane, EVA—Ethylene Vinyl Acetate, or gel may be positioned under the calcaneus to cushion the heel on impact. The pad 8 may provide additional lift to the heel taking weight and pressure off of the plantar tendon. In certain embodiments, the pad 8 may be tear-drop shaped so that it transitions from comfort and cushioning directly under the center of the heel, and as the shape tapers, it provides more support and containment at the point of transition between the calcaneus and the plantar tendon. It should be understood that the pad 8 can be any shape. In embodiments, portions of the shank 1 may wrap around the pad 8. In these embodiments, the pad 8 may be attached directly to the sock 2. In other embodiments, the pad 8 may be disposed below or above the shank 1.
[0049] Referring to
[0050] In operation, a user experiencing the need for ankle or foot support may use the brace 100 by inserting their foot into the brace so that it is positioned on a portion of the foot and ankle with the pad 8 below the heel and by securing the brace 100 using the ankle strap 6. Once the brace 100 is placed on the ankle, the user can customize the fit. Tightening the lacing system 4 applies a force to the webbing system 3 to cinch it further around the foot, increasing the support provided by the brace 100, which can be done while conventional socks and shoes are worn over the brace 100. To relax the tension on the webbing system 3, the user loosens the lacing system 4 thus loosening the webbing support system 3.
[0051] Shown in
[0052] As best seen in
[0053] Referring to
[0054] The method 1200 may further include securing 1214 the pad 8 to the knit portion 2 and/or the shank 1. The pad 8 may be secured 1214 via an adhesive, sewed, clamped and/or otherwise secured to the knit portion 2 and/or the shank 1. The method 1200 may further include securing 1216 the ankle strap 6 to the knit portion 2. The ankle strap 6 may be secured 1216 via an adhesive, sewed, clamped and/or otherwise secured to the knit portion 2. The method 1200 may further include threading 1218 the lacing system 4 through a portion (e.g., loops 19 (
[0055] As shown in
[0056] The method 1200 may include forming 1326 the shank 1 from one or more materials. Forming 1326 the shank 1 may include molding 1328, cutting, 1330, weaving 1332, knitting 1334, and/or additively manufacturing 1336 (with) the one or more materials. Holes 15 may be created 1338 in the shank 1 (e.g., via cutting, punching, burning, ablating, etc.).
[0057] The method 1200 may include forming 1340 the support system 3 from one or more materials. Forming 1340 the support system 3 may include molding 1342, cutting 1344, weaving 1346, knitting 1348, and/or additively manufacturing 1350 (with) the one or more materials.
[0058] A method 1400 for bracing a foot (e.g., using the brace (100 or 200)) is shown in
[0059] Certain further aspects of the example brace and methods are described following, any one or more of which may be present in certain embodiments.
[0060] An example brace includes a knit portion, a shank, and a support system. The knit portion is contoured for a foot. The shank is contoured for a bottom of the foot so as to cover at least a portion of an arch of the foot. The support system extends along at least part of the knit portion and is structured to generate a force between the shank and the foot. In certain embodiments, the support system is structured to extend from a lateral extensor digitorum longus tendon of the foot around a peroneus longus retinaculum tendon of the foot, under a bottom of the foot, and up the arch and a medial side of the foot to an extensor hallucis longus tendon of the foot. In certain embodiments, the brace further includes a pad disposed on at least one of the knit portion or the shank at a location corresponding to a heel of the foot. In certain embodiments, the pad includes a closed cellular foam urethane. In certain embodiments, the pad has a tear-drop shape. In certain embodiments, the tear-drop shape is tapered. In certain embodiments, the brace further includes an ankle strap structured to secure the knit portion to an ankle associated with the foot. In certain embodiments, the brace further includes a lacing system threaded through a portion of the support system at a location corresponding to a top medial portion of the foot. In certain embodiments, the brace further includes a tightening system structured to apply a force on the lacing system to cinch the support system against the foot. In certain embodiments, the tightening system includes at least one of: a rachet system; a barrel lock; or an adjustable clip. In certain embodiments, the brace further includes an ankle strap structured to secure the knit portion to an ankle associated with the foot. In such embodiments, the tightening system is disposed on the ankle strap. In certain embodiments, the tightening system is disposed on the knit portion. In certain embodiments, the support system includes webbing. In certain embodiments, the webbing includes a plurality of individual webbing portions each configured to be threaded by the lacing system. In certain embodiments, the plurality of individual webbing portions form a plurality of loops at a location corresponding to a top medial portion of the foot, and the brace further includes a thermoplastic polyurethane film welded over the plurality of loops. In certain embodiments, the webbing weaves through one or more openings in the knit portions. In certain embodiments, the webbing is a single continuous piece of webbing that forms a majority of the support system. In certain embodiments, portions of the lacing system attach to the tightening system. In certain embodiments, the portions of the lacing system terminate at the tightening system. In certain embodiments, individual laces of the lacing system attach to one of a plurality of tightening systems for adjustment of a portion of the support system. In certain embodiments, the individual laces are threaded through the portion of the support system. In certain embodiments, the support system is integrated into the knit portion. In certain embodiments, the support system is disposed between the shank and the knit portion. In certain embodiments, the shank is structured to be flat on a lateral side of the foot. In certain embodiments, the shank is structured to encroach medially on the foot to wrap around the arch of the foot. In certain embodiments, the shank includes a woven structure. In certain embodiments, the woven structure is a cradle weave. In certain embodiments, the shank has a horseshoe-shaped portion structured to wrap around a heel of the foot to support a corpus adiposum of the foot. In certain embodiments, the shank has a thickness of about 1 mm to about 2.4 mm. in certain embodiments, the shank has a thickness greater than or equal to about 2.5 mm. In certain embodiments, the brace further includes at least one protrusion disposed on the knit portion and structured to restrict movement of the foot with respect to the knit portion. In certain embodiments, the at least one protrusion includes a silicon bead. In certain embodiments, the brace further includes a finishing on an edge of the knit portion. In certain embodiments, the finishing includes one or more of: a binding shape; a flat shape; or a wedge edge. In certain embodiments, the knit portion includes a plurality of openings structured to provide breathability for the foot. In certain embodiments, the shank includes a plurality of openings structured to provide breathability for the foot. In certain embodiments, the knit portion includes at least one of: a polyester; a spandex; a thermoplastic urethane; a monofilament yarn; or a cotton. In certain embodiments, the support system includes of at least one of: a nylon band; an elastomeric band; a polyester yarn; or a thermoplastic band. In certain embodiments, the shank includes at least one of: a glass-reinforced nylon; a thermoelastic polymer; a thermoplastic elastomer; a thermoplastic urethane; an ethylene vinyl acetate; a poly ethylene vinyl acetate; a carbon fiber; or a rigid plastic. In certain embodiments, the brace further includes an ankle strap structured to secure the knit portion to an ankle associated with the foot. In such embodiments, the ankle strap includes at least one of: a leather; a synthetic leather; a suede; a synthetic suede; a microfiber; or a combination thereof.
[0061] An example method of manufacturing a brace includes securing a knit portion to a shank, the knit portion contoured for a foot, the shank contoured for a bottom of the foot so as to cover at least a portion of an arch of the foot; and securing a support system to at least one of the knit portion or the shank. The support system extends along at least a part of the knit portion and is structured to generate a force between the shank and the foot. In certain embodiments, the support system is structured to extend from a lateral extensor digitorum longus tendon of the foot around a peroneus longus retinaculum tendon of the foot, under a bottom of the foot, and up the arch and a medial side of the foot to an extensor hallucis longus tendon of the foot. In certain embodiments, the method further includes securing a pad to at least one of the knit portion or the shank at a location corresponding to a heel of the foot. In certain embodiments, the method further includes securing an ankle strap to the knit portion, wherein the ankle strap is structured to secure the knit portion to an ankle associate with the foot. In certain embodiments, the method further includes threading a lacing system through a portion of the support system at a location corresponding to a top medial portion of the foot. In certain embodiments, the method further includes securing a tightening system to the knit portion, the tightening system structured to apply a force on the lacing system to cinch the support system against the foot. In certain embodiments, the method further includes securing at least one protrusion to the knit portion. In such embodiments, the knit portion is structured to restrict movement of the foot with respect to the knit portion. In certain embodiments, the method further includes securing a finishing to an edge of the knit portion. In certain embodiments, the method further includes forming the knit portion from one or more materials. In certain embodiments, forming the knit portion includes at least one of: weaving the one or more materials to form the knit portion; or knitting the one or more materials to form the knit portion. In certain embodiments, the method further includes creating a plurality of openings in the knit portion, the plurality of openings structured to provide breathability for the foot. In certain embodiments, the method further includes forming the shank from one or more materials. In certain embodiments, forming the shank includes at least one of: molding the one or more materials; cutting the one or more materials; weaving the one or more materials; knitting the one or more materials; or additively manufacturing with the one or more materials. In certain embodiments, the method further includes creating a plurality of openings in the shank, the plurality of openings structured to provide breathability for the foot. In certain embodiments, the method further incudes forming the support system from one or more materials. In certain embodiments, forming the support system includes: molding the one or more materials; cutting the one or more materials; weaving the one or more materials; knitting the one or more materials; or additively manufacturing with the one or more materials.
[0062] An example method of bracing a foot includes inserting the foot into a knit portion of a brace such that at least a portion of an arch of the foot is covered by a shank of the brace; and generating, via a support system of the brace, a force between the shank and the foot, the support system extending along at least a part of the knit portion. In certain embodiments, the support system is structured to extend from a lateral extensor digitorum longus tendon of the foot around a peroneus longus retinaculum tendon of the foot, under a bottom of the foot, and up the arch and a medial side of the foot to an extensor hallucis longus tendon of the foot. In certain embodiments, the method further includes pulling on the brace to increase a magnitude of the force. In certain embodiments, generating, via a support system of the brace, a force between the shank and the foot, the support system extending along at least part of the knit portion includes adjusting a tightening system of the brace. In certain embodiments, the tightening system cinches the support system against the foot via a lacing system of the brace.
[0063] While the disclosure has been disclosed in connection with the preferred embodiments shown and described in detail, various modifications and improvements thereon will become readily apparent to those skilled in the art. Accordingly, the spirit and scope of the present disclosure is not to be limited by the foregoing examples, but is to be understood in the broadest sense allowable by law.
[0064] The use of the terms “a” and “an” and “the” and similar referents in the context of describing the disclosure (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the disclosure, and does not pose a limitation on the scope of the disclosure unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the disclosure.
[0065] While the foregoing written description enables one skilled in the art to make and use what is considered presently to be the best mode thereof, those skilled in the art will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The disclosure should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the disclosure.
[0066] Any element in a claim that does not explicitly state “means for” performing a specified function, or “step for” performing a specified function, is not to be interpreted as a “means” or “step” clause as specified in 35 U.S.C. § 112(f). In particular, any use of “step of” in the claims is not intended to invoke the provision of 35 U.S.C. § 112(f).
[0067] Persons skilled in the art may appreciate that numerous design configurations may be possible to enjoy the functional benefits of the inventive systems. Thus, given the wide variety of configurations and arrangements of embodiments of the present invention, the scope of the invention is reflected by the breadth of the claims below rather than narrowed by the embodiments described above.