This invention relates to a universal wraparound knee brace and, more particularly, to an offloading knee brace that can be used conveniently and effectively by persons suffering from osteoarthritis and patients recovering from knee surgery or injuries to the knee.
Orthopedic knee braces are widely utilized by persons suffering from chronic knee pain and patients recovering from knee surgery or injuries to the knee and surrounding tissues and ligaments. Wraparound knee braces are often prescribed for persons experiencing painful osteoarthritis of the knee. Such orthotics are specifically constructed to offload stress and pressure from arthritic regions of the knee and patella and thereby reduce the wearer's pain.
Traditional wraparound knee braces have employed four adjustable straps that wrap around the wearer's leg, typically with two straps positioned above and two positioned below the knee joint. Such braces often provide an uncomfortable and unsatisfactory fit. When the wearer is active, the brace is apt to migrate relative to the knee, which can interfere with the intended beneficial offloading. Gels have been applied to the interior surface of these braces to reduce unwanted movement and displacement of the brace relative to the knee. However, such gels have not proven to work very effectively. Moreover, it can be inconvenient, tedious and time consuming for the wearer to properly engage and tighten the four wraparound straps. A further shortcoming is that many of these existing braces are designed to provide the wearer with a custom fit. Accordingly, a wide variety of sizes must be manufactured to fit all or at least most sizes of wearers. Prospective wearers must evaluate, be fitted for and select a correctly sized brace.
Previous attempts to introduce a universal wraparound knee brace for osteoarthritic patients have not been optimally successful. One such existing universal knee brace employs flexible upper and lower panels that wrap around the wearer's knee generally above and below the patella, respectively. The panels are secured in place by complementary hook and loop (e.g., Velcro™) connectors. A top strap extends around each panel and is engaged with a D-ring and locked in place, again with complementary hook and loop fasteners. This brace still fails to provide an optimally secure fit that reduces undesirable shifting and migration of the brace along the user's leg and knee, particularly during vigorous activities and exercise. The existing universal wraparound knee brace also features an external condyle pad mounted exteriorly on the brace for indirectly engaging and applying pain-reducing pressure to the wearer's medial or lateral femoral condyle adjacent the knee. This condyle pad does not directly engage the knee and is not adjustable in thickness. As a result, it is not likely to optimally fit or provide therapeutic pain relief to the particular person wearing the knee brace.
It is therefore an object of the present invention to provide a universal wraparound knee brace that is readily adaptable for use by persons of various sizes.
It is a further object of this invention to provide an improved wraparound knee brace that is more securely and reliably attachable to the wearer's leg and knee and which effectively resists undesirable movement and migration along the leg and relative to the knee.
It is a further object of this invention to provide a wraparound OA knee brace that is especially effective for use by persons suffering from painful osteoarthritis.
It is a further object of this invention to provide a wraparound knee brace featuring an internal frame which is ergonomic, comfortable to wear and aesthetically appealing.
It is a further object of this invention to provide a universal wraparound knee brace that is constructed to effectively unload undue pressure on the patella and crease behind the knee to reduce the wear's knee and leg pain.
It is a further object of this invention to provide a wraparound knee brace that is quick, convenient and easy to attach to and remove from the knee.
It is a further object of this invention to provide a wraparound knee brace that provides for a secure and comfortable custom fit.
It is a further object of this invention to provide a universal wraparound knee brace featuring an internal frame enclosed within a preferably one-piece soft padded cover, which is more ergonomic, aesthetically attractive and comfortable to wear than existing knee braces of this type.
It is a further object of this invention to provide a wraparound knee brace employing an improved condyle pad mounted interiorly on the brace for directly engaging and better relieving pressure on the wearer's femoral condyle, and which features adjustable positioning and thickness for effectively customizing the brace to optimally fit a particular wearer.
This invention features a universal wraparound knee brace that is particularly suited for use by persons suffering from osteoarthritis of the knee. The brace is also designed to effectively unload undue pressure from regions of the knee such as the patella and the crease in the back of the knee. The brace includes a flexible body having a central section for engaging and extending vertically across a side of the wearer's knee. Corresponding first and second upper flaps are attached to and extend outwardly from opposing first and second vertical edges respectively of the central body section. Corresponding first and second lower flaps are likewise attached to and extend outwardly from the first and second vertical edges respectively of the central body section below the upper flaps. A first concave recess is formed between the first upper and lower flaps and a second concave recess is formed between the second upper and lower flaps. Each first flap includes an outer surface that carries a first connector. The first connector is releasably interengageable with a complementary second connector carried by at least one of the outer surface of the first flap and an outer surface of the central body section. Each second flap has an outer surface that supports a respective interior D-ring. An upper locking strap is attached proximate an inner end thereof to the outer surface of the second upper flap. A lower locking strap is similarly attached proximate an inner end thereof to the outer surface of the second lower flap such that the upper and lower locking straps are extendable outwardly from the respective second flaps and generally parallel to one another. Each locking strap has a respective exterior D-ring attached to the inner end of the locking strap. Each locking strap has an outer surface that carries a respective, complementary pair of releasably interengageable third and fourth connectors.
To attach the knee brace to the wearer's knee, the central body section is engaged with the wearer's leg by engaging a concave inner surface of the central body section against the wearer's knee such that the first upper flap and corresponding second upper flap are disposed above the knee and the first lower flap and corresponding second lower flap are disposed below the knee. Each first flap and its corresponding second flap are wrapped about the wearer's leg and releasably interengaged. Specifically, each first flap is inserted through the interior D-ring supported by the corresponding second flap and pulled snugly in a reverse direction to wrap around the wearer's leg. The complementary first and second connectors carried by the outer surface of the first flap and/or the central body section are pressed together and releasably interengaged. This operation is completed for both corresponding pairs of first and second flaps. As a result, the corresponding first and second upper flaps are secured together and wrapped about the wearer's leg above the knee. Likewise, the complementary first and second lower flaps are secured together and wrapped about the wearer's leg below the knee. The upper and lower locking straps are then wrapped exteriorly around the interengaged first and second upper flaps, and interengaged first and second lower flaps respectively. Each locking strap is inserted through the respective exterior D-ring attached to that strap and then pulled in a reverse direction to provide a snug fit with the wearer's leg both above and below the knee. The third and fourth connectors carried by each locking strap are then releasably interengaged to lock the brace closed and secure the upper and lower locking straps, as well as the underlying interengaged upper and lower flaps in place about the wearer's leg above and below the knee respectively.
In a preferred embodiment, the body of the knee brace may incorporate an internal frame composed of pliable material and covered by a padded or cushioned fabric exterior. A hinge may be mounted to the outside surface of the central body section for enabling the brace to be longitudinally bent in accordance with desired angular positioning of the knee. The outer surface of the central body section may include upper and lower pockets wherein upper and lower pivotally interconnected sections of the hinge may be mounted to respective internal frame elements of the brace. The complementary releasably interengageable connectors may include hook and loop (e.g., Velcro™) fastening components.
An interior surface of the central body section may carry a condyle pad mounting bracket that may be attached through the central body section to the exterior hinge. One or more condyle pads may be mounted to the mounting bracket interiorly of the central body section. A two-part, e.g., hook and loop, connector may be used for securing the pads to the mounting bracket. Pads of various thicknesses may be selected and employed to exert the desired pressure upon the femoral condyle. The pad may be enclosed in a flexible pouch, case or bag attached to the mounting bracket.
The first and second flaps may be wider than the locking straps. In such versions, the interior D-rings accommodating the first flaps may be wider than the exterior D-rings accommodating the locking straps. Respective interior and exterior D-rings may be mounted and arranged adjacent and generally parallel to one another.
Other objects, features and advantages will occur from the following description of a preferred embodiment and the accompanying drawings, in which:
There is shown in
Brace 10, which is illustrated in an open condition in
As shown in
A pair of corresponding first and second upper flaps 34 and 36 are integrally attached to and extend outwardly in opposite directions from opposing vertical edges of central body section 12. Likewise, a corresponding pair of first and second lower flaps 42 and 44 are integrally attached to and extend outwardly in respective opposite directions from opposing first and second vertical edges of central body section 12. The first flaps 34, 42 are longer and narrower than the second flaps 36, 44. As illustrated in
Each upper and lower first flap 34, 42 includes an outer surface 50 that carries a first connector 52 proximate a distal end of the flap. Complementary second connectors 54 are carried on the outer surfaces of upper and lower pockets 18 and 20. Each second connector 54 is releasably interengageable with a respective first connector 52. Preferably respective connectors 52 and 54 comprise respective first and second parts of a conventional two-part releasable fastening system such as a hook and loop (e.g., Velcro™) fastener.
Each second flap 36, 44 has an outer surface 56. An upper interior D-ring 58 is attached by stitching, adhesive or other secure fastening means to outer surface 56 of upper second flap 36. A lower interior D-ring 60 is similarly secured to outer surface 56 of second lower flap 44. An elongate upper locking strap 62 is stitched or otherwise fastened at a proximal end thereof to outer surface 56 of flap 36. A lower locking strap 64 is similarly attached proximate an inner end thereof to outer surface 56 of second lower flap 44. The upper and lower locking straps 62 and 64 are extendable outwardly from respective second flaps 36 and 44 in the generally parallel manner depicted in
Knee brace 10 is attached to the wearer's knee and secured in place in the following manner. The central body section 12 is engaged longitudinally against the wearer's leg by placing the concave internal frame elements 14, 16 within pockets 18, 20 against the wearer's knee such that first upper flap 34 and corresponding second upper flap 36 are disposed above the knee and first lower flap 42 and corresponding lower second flap 44 are placed below the knee. Brace 10 should also be oriented such that exterior hinge 22 and interior condyle pad 26 are properly positioned relative to a selected side of the wearer's knee. The wearer's patella should be accommodated by webbed receptacle 30. The corresponding first and second flaps, as well as the upper and lower locking straps are then respectively interengaged as shown in
After the corresponding upper and lower flaps are interengaged in the above-described manner, the brace is releasably locked in place by engaging the upper and lower locking straps 62 and 64. As shown by representative lower locking strap 64 in
The upper locking strap 12 is likewise wrapped about its interengaged first and second flaps 34, 36 and is secured in place in a similar manner to lower strap 64. In each case, the locking strap 62, 64 is pulled snugly in a reverse direction through its corresponding exterior D-ring and the third hook and loop connector 63 proximate the distal end of the strap is pressed against the complementary fourth connector 65 carried by an inward section of the strap's outer surface. This locks the brace securely in place both above and below the knee of the wearer. See
It should be understood that various other types of two-part connectors may be employed for both fastening the first flap and releasably interengaging the upper and lower locking straps to themselves. Such two-part connector systems may include snap fasteners, buttons and complementary buttonholes, etc. Hook and loop connective systems are especially preferred.
The present invention employs a unique innovative and advantageous means of bi-directionally tightening and securing the knee brace about the wearer's leg and knee. By employing a flap that is tightened in a first direction and a separate locking strap that is tightened in the reverse direction, a more comfortable and secure custom fit is achieved. The brace better resists undesirable movement and migration along the wearer's leg particularly during rehabilitation, exercise and other activities. Attaching the brace to the wearer's knee and removing the brace are accomplished quickly, conveniently and comfortably. The brace is easily adjusted to fit virtually any type and size of user. The bi-directional D-ring construction allows the size to be adjusted quickly, conveniently and reliably. The brace also employs an ergonomic construction and presents an aesthetically improved appearance.
Accordingly, the present invention relates to a universal wraparound knee brace that is beneficial for use by persons suffering from osteoarthritis, as well as patients recuperating from surgery and various other knee injuries. While this detailed description has set forth particularly preferred embodiments of the apparatus of this invention, numerous modifications and variations of the structure of this invention, all within the scope of the invention, will readily occur to those skilled in the art. Accordingly, it is understood that this description is illustrative only of the principles of the invention and is not limitative thereof.
Although specific features of the invention are shown in some of the drawings and not others, this is for convenience only, as each feature may be combined with any and all of the other features in accordance with this invention.
This application claims the benefit of U.S. Provisional Application Ser. No. 63/533,471 filed Aug. 18, 2023.
Number | Date | Country | |
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63533471 | Aug 2023 | US |