The disclosed embodiments relate generally to orthotics.
In 2011, according to the American Orthopedic Society 45 Million Children are involved in Organized Sports. On an annual basis 2.5 million suffer injuries (almost 6%). Many of those injuries will have life long lasting effects. A Philadelphia Hospital reported Youth Sports related injuries increased by 400%, in one year. According to the US Product and Safety Commission Report from 1991 to 1998 Sports related injuries, among Baby Boomers, age 35 to 54, increased 33%. In 1998 the cost of 1 million sports related injuries to baby boomers was $18.7 billion. In 2011 injuries in youth and teen organized school sports was 3.5 million per year. Foot and Ankle injuries account for ⅓ of the annual injuries due to youth sports.
During activity the pressure exerted on the human heel is 3 times the individual's body weight. With increase in organized sport (NCAA team Sports) the amount of time each week is approximately 20 to 30 hours of practice and play. The American Orthopedic Foot & Ankle Society recommends that sport shoes should be replaced after 300 to 500 miles of running and 300 hours of aerobic exercise. Therefore, on the college level, athletes should be replacing their shoes every 2.5 to 3 months, totaling 4 times per year. For athletes competing year round in leagues or on a semi pro schedule, should be replacing their shoes a minimum of 5×/year. Various sports on the NCAA level I have worked with (e.g. Harvard Tennis) replace their shoes every 3 to 4 weeks.
In a random Foot Health Survey performed in 2013, 61% of participants are experiencing some form of foot pain or injury; 9.5% are in the ball of the foot; 9.5% are in the arch of the foot; 14% of the issues are in the ankle; and 28% of the injuries are in the heel.
One possible explanation for the foot injuries is the design of shoes themselves. The heel portions of the shoes for the athletes have no protection to prevent heels from injury. This may be because the shoes lacked padding between the insole and the foam rubber ankle padding in the heel of the shoe. In many shoes, the space between the insole and ankle padding is only constructed with a lining that covers a non-yielding heel cup made of hard plastic. The design of the heel cup allows the heel to have excursion and move freely. However, the space also allows the heel to move to the point of repetitive contact with the hard non-yielding heel cup of the shoe; thus causing the numerous injuries, such as blisters, calluses, heel fissures, friction burns, infections, plantar fasciitis, tendonitis, and bursitis.
Many over-the-counter remedies are ineffective, wear down easily, or are unreliable because they are built to be removable and replaceable. Therefore, there exists a need for an improved or augmented heel cup insert device for shoes that helps mitigate, prevent, or remedy foot injuries.
The following presents a simplified summary of the disclosure in order to provide a basic understanding of certain embodiments of the present disclosure. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the present disclosure or delineate the scope of the present disclosure. Its sole purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.
In general, certain embodiments of the present disclosure provide an augmented heel cup protective insert device for shoes. The insert device includes a posterior segment corresponding to the curvature of a heel of a shoe. The device also includes a medial wing, a medial parabolic formation that extends in a direction from top to bottom of the device, an inferior segment, and an angulated segment to meet the beginning of the edge of the heel on the medial side of the shoe.
Like reference numerals refer to corresponding parts throughout the drawings.
It will be understood that, although the terms “first,” “second,” etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without changing the meaning of the description, so long as all occurrences of the “first contact” are renamed consistently and all occurrences of the second contact are renamed consistently. The first contact and the second contact are both contacts, but they are not the same contact.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the claims. As used in the description of the embodiments and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As used herein, the term “if” may be construed to mean “when” or “upon” or “in response to determining” or “in accordance with a determination” or “in response to detecting,” that a stated condition precedent is true, depending on the context. Similarly, the phrase “if it is determined [that a stated condition precedent is true]” or “if [a stated condition precedent is true]” or “when [a stated condition precedent is true]” may be construed to mean “upon determining” or “in response to determining” or “in accordance with a determination” or “upon detecting” or “in response to detecting” that the stated condition precedent is true, depending on the context.
As used herein, “Aliplast” refers to: a firm malleable product used as a base to provide a semi-ridged platform for insoles. It is most often in conjunction with Plastazote for orthotics.
As used herein, “Poron” refers to: a flexible light-weight cushioning material with or without a backing of a fabric. It is of sturdy construction durable under stress. Poron is used as a base for insoles and orthotics and provides excellent cushioning protection.
As used herein, “Plastazote” refers to: a material designed to absorb pressure and cushioning frequently used in orthotics and prosthetics singularly or in combination. It is readily compressible and does not retain its original dimension. It comes in three grades of compression. It can be heat-moulded to accommodate anatomical shapes.
As used herein, “P.P.T.” refers to: a very light, flexible and used extensively as a composite in the assembly of orthopedic devices including prosthetics although moderately durable it combines most often with other similar products for stability.
As used herein, “Foam Rubber” refers to: sponge foam and rubber. It is very soft on compression and presents with a bulky appearance. It is most often used to absorb pressure.
As used herein, “Neoprene” refers to: a combination of spongy rubber, used for palliative padding to absorb pressure and provide protection and comfort. It is well suited for the inclusion of orthotics and insoles. It is durable and retains its shape on pressure and flexible.
As used herein, “Felt” refers to: a blend of wool felt and cotton. It is tough and durable but mats down over time with pressure. Felt is used mostly in podiatric orthopedics for protective correction and palliative purpose and can be applied directly to skin surface.
As used herein, “Gel” refers to: a product of polythene designed to provide protection from pressure on joints of the foot. It has the consistency of jelly-fish and readily conforms to an irregular surface. It changes shape over time and absorbs pressure.
Most shoes are designed to protect the bottom/plantar surface of the heel, but not to protect the periphery of the heel. In various embodiments of the present disclosure, a unique design is presented that is contoured to the interior heel portion of the shoe. In some embodiments, the device is flexible and its purpose is for medial, posterior and lateral heel protection. In some embodiments, the device can be installed in front of the fabric lining, which covers the firm plastic heel cup. In other embodiments, the device is adhered to the shoe by being firmly cemented to the plastic heel cup directly (during manufacturing process), thus concealing its presence and yet performing the function of protection, comfort and alignment of the heel segment. In such embodiments, such a design provides additional collateral support for the heel itself.
In various embodiments, the overall dimensions including design, cut-outs, notches, extensions and pontoons are unique. Additional modifications may be added as conditions dictate. An example would be to add additional protection pontoons to enhance a snug fit and provide impact protection. In some embodiments, another enhancement would entail a crenature or notching of the most superior-posterior extension of the embodiment of our device. In such embodiments, this allows for flexibility on installation and cradling of the tendoachilles and heel component. In some embodiments, a similar cutout is presented inferiorly to facilitate ease of installation or adjustment.
Reference will now be made in detail to various embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure and the described embodiments. However, the present disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. The following figures all present example left shoe insert devices in accordance with embodiments of the present disclosure. It should be noted that right shoe insert devices would simply be just mirror images of the examples presented.
In some embodiments, the insert device is designed to, cradle the heel with a firm cushion and limit heel excursion and rotation, which occurs naturally in the foot upon movement. It will reinforce stability and insure comfort. The device also adds durability to the shoe. In various embodiments, the device is installed discreetly between the hard plastic unyielding cup and fabric cover of the interior of the shoe as part of the construction of the shoe.
In
In some embodiments, the length of the device is designed to fit pre-existing confirmation of shoe designs. In various embodiments, the device is specifically designed to be a length that can encompass all the possible irritations to the heel. The lateral side is longer because it is the maximum point of pressure and irritation. The heel is vulnerable to multiple points of irritation during movement. Biomechanically the heel is first to initiate contact with the ground. The force which the heel absorbs is equal to three times the body weight. The maximum force is absorbed by the heel segment. When the heel comes in contact with the ground there is rotational movement; side to side and vertically. The invention contributes to the prevention of medical issues to the heel.
Middle section 220 includes a middle extension 222. In some embodiments, extension 222 is a square extension that provides comfort and protection to the attachment of the tendoachilles. In some embodiments, extension 222 is adapted for the flexibility on installation and further cradling of the tendoachilles segment. As can be seen from the figures, middle section 220 is much thicker vertically than middle section 120 of insert 100. This is to provide more stability for the insert device.
Lateral wing 210 adds comfort and protection to the top lateral side of the foot. In some embodiments, it prevents the foot from coming in direct contact with the un-yielding heel cup. In some embodiments, There are three “pontoons” 212, 214, and 216 situated on lateral wing 210. These pontoons are strategically placed to add comfort and protection to the most vulnerable areas of the lateral side of the foot. The placement of the pontoons is deliberate to correspond to the places on the foot that have been anatomically proven to have the most pressure on the heel from the plastic heel cup during movement. The pontoons straddle a calcaneal prominent tubercle on the lateral side called the “Lateral Process.” It is this area which is most adversely pressured during motion and can result in multiple skin lesions. The most distal pontoon 212 adds ancillary protection to the soft tissue that is posterior to the cuboid bone. Middle pontoon 214 is positioned to directly protect the calcaneal (prominence) tubercle. Pontoon 216, the most proximal pontoon, is positioned to provide ancillary protection to the heel tissue, just posterior to the calcaneal tubercle.
In various embodiments, all three Pontoons are situated to cradle the prominent anatomical points of the foot, which when cradled are protected from abrasion and limit excursion. They are protective pressure concussion elements. In some embodiments, the pontoons are made of Felt, Aliplast, Poron, Plastazote, PPT, Neoprene, Foam Rubber or Gel. In some embodiments, the pontoons are around 1/16″ or 1.59 mm, but not to exceed ⅛″ or 3.18 mm in thickness.
As with
In some embodiments, the triangular shapes are designed to absorb the “wave-like” side-to-side movement of the foot during movement. The spacing of the pointed tips of the triangles absorb the movement and sway along with the absorbed movement while the rest of insert 300 stays stable and still. This prevents tearing of the insert caused by exposure to the swaying movement because the maximum amount of movement against a shoe occurs toward the top of the heel, not the bottom/plantar surface. This is because the plantar surface is at least partially stabilized by the weight of the wearer.
As with
Insert device 400 includes medial wing 430, middle section 420, lateral wing 410, three pontoons (412, 414, and 416). Insert 400 also includes three truncated pyramids 422, or truncated crenalations, which serve to fit snugly under the sponge foam cushion installed by the manufacturer. The truncated crenalations serve a similar purpose to the three triangles in insert device 300. However, the truncated tips allow for the inverted option. In the inverted option the truncated pyramids are at the base of the heel contour of a shoe and they have the flexibility to adjust to this position, cradling the base line curvature of the floor of the shoe without leaving any spacing and not exposing the bulbous portion of the heel to the un-yielding heel cup. Insert 400 also includes extension 424 towards the plantar/bottom side of the middle section. Also while in the inverted option, extension 424 then protects the top of the heel, much like extension 222 of device 200. This serves to reinforce the entire heel where more protection is needed. In addition, this bottom extension 424 extends slightly in the lateral direction. This provides increased protection to the lateral side bottom of the heel. This is because more pressure is exerted onto the lateral side bottom of the heel during movement. In the inverted scenario, the staggered difference is also helpful due to the rear of the heel counter being wider at the top and narrower at the bottom the device is designed to fit this accommodation. The truncated elements 422 narrow when positioned properly at the base of the heel surface. When the squared extension 424 is at the top-line of the heel portion of the shoe it will be sheltered under the preexisting sponge foam rim, installed by the manufacture. The medial wing 430 includes a 15 degree arch towards the bottom distal end of the medial wing. This functions to follow the longitudinal arch of the medial side (arch side) of the foot.
For example purposes only, insert 400 is depicted as having pontoon 416 be thinner (horizontally) than the other two pontoons. This difference is depicted only to show that the pontoons do not all have to be the same size. However, the positions relative to each other must remain consistent because where the pontoons are placed is more important than how big the pontoons are. Thus, in some embodiments, insert device 400 can have varying size pontoons, as well as varying size truncated crenalations.
It should be noted that insert 400 is designed to be more versatile than other designs mentioned above, but consequently does not conform as precisely to the anatomical bones of the heel. In order to mitigate the effects of this deficiency, insert 400 is designed to bring more stability. Thus, insert 400 illustrates an ideal design for the minimalist shoe that is not designed for physical activity and thus needs much more support for the back of the heel.
As with
In addition, top extension 522 is a semi-square extension with small truncated crenalations. Extension 522 is a blend of square extension 222 and truncated crenalation 422. As with truncated crenalations in
Insert device 500 also includes notches 524 for facilitating bending of the insert device to fit perfectly into the heel cup portion of the shoes. As a non-limiting example, these notches 524 are presented as three distinct geometric cut-outs, designed to facilitate the installation and its adaptability to contour of a shoe. The example depicted in
As with
In Conclusion: In various embodiments, the insert devices, by virtue of its designs, are effective and efficient in design. In some embodiments, the device addresses the issues of comfort, protection, and stability of the heel segment. In some embodiments, the device furthermore extends the durability of the shoe's inner structure.
The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. For example, any combination of feature from any of the figures can be used as embodiments of the present disclosure. The embodiments were chosen and described in order to best explain the principles of the present disclosure and its practical applications, to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated.
This application is a continuation of and claims priority to U.S. patent application Ser. No. 15/696,088 (Attorney Docket No. CCRVP001), filed Sep. 5, 2017, which claims the benefit of U.S. Provisional Application No. 62/383,352 (Attorney docket CCRVP001P), filed on Sep. 2, 2016, both of which are incorporated by reference herein in their entirety for all purposes.
Number | Date | Country | |
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62383352 | Sep 2016 | US |
Number | Date | Country | |
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Parent | 16518926 | Jul 2019 | US |
Child | 17470975 | US | |
Parent | 15696088 | Sep 2017 | US |
Child | 16518926 | US |