CROSS-REFERENCE TO RELATED APPLICATIONSThis application claims the benefit of U.S. Provisional Application No. 62/241,989, filed Oct. 15, 2015, and incorporates the same by reference in its entirely herein.
BACKGROUNDField of the Disclosure
Disclosed herein is a customizable knee brace intended for patients with osteoarthritis. Methods of treating a patient having osteoarthritis are likewise provided.
Description of the Related Technology
Osteoarthritis (OA), commonly known as wear-and-tear arthritis, is a condition in which the natural cushioning between joints wears away. Osteoarthritis is one of the most frequent causes of physical disability among adults, with over 20 million people in the United States having the disease. By 2030, it is estimated that 20% of all Americans, approximately 70 million people, will be at risk for osteoarthritis. A degenerative joint disease, osteoarthritis causes chronic pain in the affected joint when the joint is statically or dynamically loaded.
Primary osteoarthritis often affects weight bearing joints, such as the knee. Repetitive use of a joint, such as the knee, over time can irritate and inflame the cartilage, causing joint pain and swelling. Eventually, cartilage begins to degenerate and as cartilage is diminished, the bones of the knee joints rub more closely against one another with less of the shock-absorbing benefits of cartilage. The rubbing can result in pain, swelling, stiffness, decreased mobility as well as the possibility of bone spur formation. The most common cause of osteoarthritis of the knee is age. However, several factors increase the risk of developing significant arthritis including age, weight, repetitive stress injuries, and certain athletic endeavors such as soccer, tennis, or long-distance running.
In an affected knee, osteoarthritis pain is often caused by an unbalanced loading on the medial or lateral compartment of the joint. Such unbalanced loading can generate increased pressure and reduce the clearance space between the condyles of the femur and tibial plateau. Increased pressure between the femoral and tibial surfaces in an affected compartment of the knee joint can lead to cartilage degeneration. As the cartilage degenerates, the osteoarthritis sufferer experiences increased pain in the knee.
Orthopedic knee braces are commonly applied to the leg to treat osteoarthritis of the knee and other painful knee conditions. Such braces typically include an upper support portion, a lower support portion, and one or more hinge assemblies pivotally interconnecting the upper and lower support portions. The upper support portion is secured to the wearer's upper leg, while the lower support portion is secured to the wearer's lower leg. The hinge assembly is located to a side of the wearer's knee and a condyle pad is typically located between each hinge assembly and the adjacent side of the knee. For example, a thickness of the adjacent condyle pad may be increased or the pad may be moved closer to the knee. The applied force generates resultant forces in the medial/lateral plane above and below the knee. The upper and lower support portions of the brace, respectively, apply these resultant forces on the side of the affected compartment. The applied and resultant forces comprise the three-point bending load on the leg. This load realigns the knee. By realigning the orientation of the knee joint, the knee brace reduces the load in the affected compartment of the knee, thereby lessening the pain and the other negative effects of osteoarthritis.
Osteoarthritis knee braces are primarily designed to correct the abnormal bending of the knee joint inwards or outwards (i.e., Varus or Valgus correction, respectively) and prevent the “bone-on-bone” contact of the femur and tibia bones in the medial and/or lateral compartment of the knee joint as the patient bares weight during ambulation. This action of lifting the femur, pulling down the tibia or keeping the femur and tibia bones from coming in contact during the straightening of the knee during heel strike of the foot is often called “unloading” of the knee joint. By unloading the knee joint, the constant irritation of the degenerated cartilage in the effected compartment of the knee (medial or lateral) can lead to a reduction in pain and a further reduction in injury to the knee joint.
Osteoarthritis knee braces also provide improved alignment of the upper and lower aspects of the knee joint by preventing the bending inwards or outwards of the knee joint during gait. U.S. Pat. No. 3,581,741 to Rosman, discloses a knee brace comprising an upper rigid body portion and a lower rigid body portion pivotably coupled together on the lateral side in a manner so that they may pivot relative to each other about an axis generally perpendicular to the zone of overlap and may slide relative to each other in all radial directions generally parallel to the zone of overlap. A majority of knee orthotics available to treat osteoarthritis of the knee utilize a single upright attached to an upper thigh cuff and lower shin cuff. The upright is located on the side of the collapsed compartment of the knee (i.e., medial side for medial compartment osteoarthritis or lateral side for lateral compartment osteoarthritis). The attached cuffs “unload” the biomechanical force from the affected compartment of the knee by increasing the joint space on the affected side as the knee goes from flexion to extension.
Some osteoarthritis knee braces use an angled strap that extends from the upper part of the brace, from the single upright, across the opposite side of the knee joint to the lower part of the brace to improve the alignment of the knee during ambulation and more evenly balance the forces on the knee during gait kinetics. The strap provides a three point leverage system that attempts to pull the knee joint into proper alignment during gait. A combination of the single sided upright with cuff attachments and the valgus-producing strap have shown to provide improved performance in severe osteoarthritis. However, it is difficult to set the desired degrees of flexion and extension in such devices and therefore these devices are known to fall short of providing a close-to-complete alleviation of the pain and discomfort from osteoarthritis and a return to normal walking gait, let alone providing any corrective and therapeutic force system to rehabilitate the effected knee joint and surrounding muscles. Further, patient discomfort and brace slippage is a real and common problem with these prior art braces.
Some knee braces utilize a single upright support attached to an upper thigh cuff and lower shin cuff. The upright support is located opposite or adjacent to the side of the collapsed compartment of the knee. The attached cuffs “unload” the biomechanical force on the affected compartment of the knee by increasing the joint space on the affected side as the knee goes from flexion to extension. Other known brace designs employ a double upright strut, which immobilizes the knee by unloading the degenerative knee compartment. In some such braces, non-slippage and comfort pads are employed along inner lateral surfaces of the upright struts.
Patients who suffer joint pain may also benefit from the use of compression sleeves or wrap-arounds. Available compression sleeves use a flexible, elastic fabric, such as neoprene, designed to be pulled over or wrapped around the joint. Compression sleeves can improve joint stability and also provide some insulation or heat to the joint. In some instances, a compression sleeve may include one or more rods which may provide support to the joint.
There remains a need for improved osteoarthritis braces to serve the needs of the growing population of osteoarthritis sufferers. Moreover, there exists a need for a customizable osteoarthritis brace.
SUMMARYA customizable knee brace for use in the treatment of osteoarthritis is provided. The customizable knee brace includes a lateral upright. The lateral upright includes at least a first semi-rigid support, a second semi-rigid support, and a hinge physically coupling the first semi-rigid support and the second semi-rigid support. The customizable knee brace further includes a thigh cuff constructed of formable material and coupled to the first semi-rigid support. The customizable knee brace further includes a shin cuff constructed of formable material and coupled to the second semi-rigid support. The customizable knee brace further includes an elastomeric web framework coupled to the lateral upright and configured to secure an area of a knee of a patient when wearing the customizable knee brace. The customizable knee brace further includes at least one tensioning element configured to adjust a tension of the elastomeric web framework.
Another customizable knee brace for use in the treatment of osteoarthritis is provided. The customizable knee brace includes a lateral upright. The lateral upright includes at least a first semi-rigid support, a second semi-rigid support, and a hinge physically coupling the first semi-rigid support and the second semi-rigid support. The customizable knee brace further includes an elastomeric web framework coupled to the lateral upright and configured to secure an area of a knee of a patient when wearing the customizable knee brace. The customizable knee brace further includes at least one tensioning element configured to adjust a tension of the elastomeric web framework.
Another customizable knee brace for use in the treatment of osteoarthritis is provided. The customizable knee brace includes a lateral upright. The lateral upright includes at least a first semi-rigid support, a second semi-rigid support, and a hinge physically coupling the first semi-rigid support and the second semi-rigid support. The customizable knee brace further includes a thigh cuff constructed of formable material and coupled to the first semi-rigid support. The customizable knee brace further includes a shin cuff constructed of formable material and coupled to the second semi-rigid support. The customizable knee brace further includes an elastomeric web framework coupled to the lateral upright and configured to secure an area of a knee of a patient when wearing the customizable knee brace.
A method for treating osteoarthritis utilizing a customizable knee brace is provided. The method includes forming a thigh cuff of the customizable knee brace to a thigh of a patient. The method includes forming a shin cuff of the customizable knee brace to a shin of the patient. The customizable knee brace further comprises a lateral upright comprising at least a first semi-rigid support configured to be coupled to the thigh cuff, a second semi-rigid support configured to be coupled to the shin cuff, and a hinge physically coupling the first semi-rigid support and the second semi-rigid support. The method further includes securing an area of a knee of a patient utilizing an elastomeric web framework coupled to the lateral upright. The method includes adjusting a tension of the elastomeric web framework utilizing at least one tensioning element.
A kit for providing a customizable knee brace for use in the treatment of osteoarthritis is provided. The kit includes the customizable knee brace, which includes a lateral upright including a first semi-rigid support, a second semi-rigid support, and a hinge physically coupling the first semi-rigid support and the second semi-rigid support. The customizable knee brace further includes a thigh cuff constructed of formable material and coupled to the first semi-rigid support. The customizable knee brace further includes a shin cuff constructed of formable material and coupled to the second semi-rigid support. The customizable knee brace further includes an elastomeric web framework coupled to the lateral upright and configured to secure an area of a knee of a patient when wearing the customizable knee brace. The customizable knee brace further includes at least one tensioning element configured to adjust a tension of the elastomeric web framework. The kit may further include a plurality of heating pads configurable to heat the thigh cuff and the shin cuff for forming to the patient's thigh and shin, respectively.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 illustrates a perspective view of a customizable knee brace for use in the treatment of osteoarthritis, in accordance with some embodiments.
FIG. 2 illustrates a plan view of an embodiment of an upper portion of the customizable knee brace ofFIG. 1, utilizing a reel-and-lace tensioning element, in accordance with some embodiments.
FIG. 3 illustrates a plan view of another embodiment of an upper portion of the customizable knee brace ofFIG. 1, utilizing a reel-and-lace tensioning element, in accordance with some embodiments.
FIG. 4 illustrates a perspective, magnified view of the lateral upright of customizable knee brace ofFIG. 1, in accordance with some embodiments.
FIG. 5 illustrates an exploded perspective view of the lateral upright ofFIGS. 1 and 4, in accordance with some embodiments.
FIG. 6 illustrates an exploded perspective view of the removable condyle pads for coupling to the lateral upright ofFIGS. 1, 4 and 5, in accordance with some embodiments.
FIG. 7 illustrates a perspective view of the medial element of the customizable knee brace ofFIG. 1, in accordance with some embodiments.
FIG. 8 illustrates a kit for reducing or substantially eliminating deformation of elements of the customizable knee brace ofFIG. 1 during physical transportation and/or storage, in accordance with some embodiments.
FIG. 9 illustrates a flowchart for a method of treatment of osteoarthritis utilizing a customizable knee brace as described in any of the preceding FIGs., in accordance with some embodiments.
DETAILED DESCRIPTION OF CERTAIN EMBODIMENTSAs an initial matter, a skilled artisan will appreciate that the embodiments disclosed herein have broad application and utility. Several embodiments may be discussed for illustrative purposes in providing a full and enabling disclosure. Moreover, many adaptations, variations, modifications, and equivalent arrangements will be implicitly disclosed by the embodiments described herein and fall within the scope of this description.
Several embodiments of a customizable knee brace intended for patients with abnormal knee function who suffer from osteoarthritis (OA). As will be described in greater detail below and as illustrated in the FIGs., some embodiments of this customizable knee brace comprise a lateral upright, a thigh cuff and a shin cuff, each constructed of formable material, and an anterior elastomeric web framework configured to wrap around and conform to the patient's knee joint. The embodiments described herein benefit from, in part, the surprising development of a fully customizable, easy to wear, and light weight solution for patients suffering from OA.
Such customizable knee braces offer significant benefits over current braces. For example, customizable knee braces as described herein are a fully customizable, easy to wear, and lightweight solution for patients suffering from OA. More specifically, clinicians and patients may customize the fit of the customizable knee braces to redistribute a portion of a load from an affected compartment of the knee of the patient (e.g., medial compartment, lateral compartment, patellofemoral compartment, or any combination thereof), thereby reducing knee pain. Assisting in proper fit and effective redistribution of the load on the knee, the thigh cuff and the shin cuff are both heat formable at a relatively low heat, as will be described in greater detail in connection with at leastFIGS. 1 and 9 below. A strapping system is further provided, which may be initially sized and also capable of being further trimmed as required, based at least in part on the anatomy, needs and condition of the particular patient.
Embodiments described herein provide pain relief for OA utilizing frontal-plane three-point leverage offloading with extension assist afforded by the anterior elastomeric web framework. Such three-point leverage offloading is accomplished in a plurality of manners. For example, portions of the lateral upright may be configured to be adjusted (e.g., bent or formed to an ideal or desired offloading angle with respect to the femur, tibia, knee joint, or outside surface of the upper and/or lower leg), based on anatomical needs of the patient, so as to effectively redistribute a portion of a load from an affected compartment of the knee of the patient, thereby reducing knee pain. Moreover, as will be described in more detail in connection with the following FIGs., a hinge of the lateral upright may be adjusted to increase or decrease offloading. In addition, at least one tensioning element may be configured to adjust a tension of the elastomeric web framework to increase or decrease offload from an affected compartment of the patient's knee joint while simultaneously providing varying degrees of extension assist to the knee joint and adjustment of the fit of the customizable knee brace.
Although the present embodiments are particularly well-suited for use in treating osteoarthritis of the knee, such customizable braces may also be utilized and/or modified for use in treating other joints including, for example, ankle, elbow, neck, back, and/or wrist.
FIG. 1 illustrates a perspective view of acustomizable knee brace100 for use in the treatment of osteoarthritis, in accordance with some embodiments.Customizable knee brace100 is illustrated inFIG. 1 before fitting to a patient's knee, in a substantially flat orientation.Customizable knee brace100 comprises alateral upright110, which comprises a firstsemi-rigid support102, a secondsemi-rigid support104, and ahinge106 physically coupling firstsemi-rigid support102 and secondsemi-rigid support104. In some embodiments, hinge106 may be a unicentric joint (e.g., having a single axis of rotation or freedom of movement). In some other embodiments, hinge106 may be a polycentric joint (e.g., having a plurality of axes of rotation or freedom of movement). In some embodiments, at least one of firstsemi-rigid support102 and secondsemi-rigid support104 are configured to be adjusted, based on anatomical needs of the patient, so as to redistribute a portion of a load from an affected compartment of the knee of the patient, thereby reducing knee pain. For example, a treating clinician or the patient may bend or form one or both of firstsemi-rigid support102 and secondsemi-rigid support104 such that it forms an ideal or desired offloading angle with respect to the femur, tibia, knee joint, or external surface of the upper and/or lower leg of the patient when thecustomizable knee brace100 is properly worn. Accordingly, in some embodiments, firstsemi-rigid support102 and secondsemi-rigid support104 may be constructed of a material such as heat-formable plastic, metal, or any other suitably rigid material, currently know or unknown, that is sufficiently rigid to provide the required support to and force against the knee joint and that, in some embodiments, may also be adjusted or bent to a desired angle either through use of an adjusting machine or manually, by hand, and in some embodiments, once sufficiently heated.
For treatment of medial compartment OA,lateral upright110 may be disposed along the lateral side of the patient's affected leg such thathinge106 substantially aligns with the lateral side of the knee joint and the axis along which the knee bends, firstsemi-rigid support102 is disposed along the lateral, lower portion of the patients upper leg (e.g., the thigh), and secondsemi-rigid support104 is disposed along the lateral, upper portion of the patients lower leg (e.g., the shin and/or calf). Accordingly, when worn, the lateral upright110 (e.g., firstsemi-rigid support102, hinge106, and/or second semi-rigid support104) may exert a force from the lateral side toward the medial side of the knee joint (i.e., a Varus adjustment), thereby increasing the separation between the femur and tibia in the medial compartment of the knee and, accordingly, providing a redistribution of a portion of the load away from the medial compartment of the knee. In at least this manner, knee pain may be reduced for the patient suffering from medial OA.
For treatment of lateral compartment OA,lateral upright110 may be disposed along the medial side of the patient's affected leg such thathinge106 substantially aligns with the medial side of the knee joint and the axis along which the knee bends, firstsemi-rigid support102 is disposed along the medial, lower portion of the patients upper leg (e.g., the thigh), and secondsemi-rigid support104 is disposed along the medial, upper portion of the patients lower leg (e.g., the shin and/or calf). Accordingly, when worn, the lateral upright110 (e.g., firstsemi-rigid support102, hinge106, and/or second semi-rigid support104) may exert a force from the medial side toward the lateral side of the knee joint (i.e., a Valgus adjustment), thereby increasing the separation between the femur and tibia in the lateral compartment of the knee and, accordingly, providing a redistribution of a portion of the load away from the lateral compartment of the knee. In at least this manner, knee pain may be reduced for the patient suffering from lateral OA.
In some embodiments,customizable knee brace100 may further comprise at least oneremovable condyle pad108a,108b,108ccoupled to hinge106, betweenhinge106 and the knee of the patient, thereby providing a desired spacing betweenhinge106 and the knee of the patient. In some embodiments, removable condyle pad(s)108a,108b,108cmay be secured to hinge106 via Velcro, a removable or permanent adhesive, one or more mounting brackets, screws, clips or any other suitable method of coupling. Moreover, a singleremovable condyle pads108a,108b,108cmay be utilized at a time, or multipleremovable condyle pads108a,108b,108cmay be stacked to provide a desired spacing betweenhinge106 and the patient's knee. By coupling one or more of a plurality ofremovable condyle pads108a,108b,108cto hinge106, each having a different thickness, the alignment of the knee may be further adjusted, in some instances, with a finer granularity and greater range of thicknesses than would otherwise be possible.
Customizable knee brace100 may further comprise athigh cuff112 coupled to firstsemi-rigid support102. In some embodiments,thigh cuff112 may be constructed of heat-formable material allowing it to be adjusted, bent and/or shaped to conform to at least the anterior portion of the patient's thigh by applying modest heat (e.g., in a temperature range at least partially overlapping 160-180 degrees Fahrenheit) and, thereby, improve the fit to the patient. In some embodiments, this heat-formable material may be substantially rigid at temperatures it would be expected to endure while being worn by the patient (e.g., temperature ranges below 120 degrees Fahrenheit). In some other embodiments,thigh cuff112 may comprise a formable metal. In this way,thigh cuff112 may be thermoformable, adjustable, and/or reformable such that a clinician and/or the patient may mold the brace directly to the patient for an improved fit, comfort, and joint stabilization in a desired orientation.Thigh cuff112 may have the additional benefit of providing some measure of local tissue compression as well as promoting desired patellar and/or general knee joint alignment, either of which may provide reduced inflammation and/or pain in the knee joint. In addition, in some embodiments,thigh cuff112 may also be light weight, easy to clean, and/or waterproof.
Customizable knee brace100 may further comprise ashin cuff114 coupled to secondsemi-rigid support104. In some embodiments,shin cuff114 is constructed of heat-formable material allowing it to be adjusted, bent and/or shaped to conform to at least the anterior portion of the patient's thigh by applying modest heat (e.g., in a temperature range at least partially overlapping 160-180 degrees Fahrenheit) and, thereby, improve the fit to the patient. In some embodiments, this heat-formable material may be substantially rigid at temperatures it would be expected to endure while being worn by the patient (e.g., temperature ranges below120 degrees Fahrenheit). In some other embodiments,shin cuff114 may comprise a formable metal. In this way,shin cuff114 may be thermoformable, adjustable, and/or reformable such that a clinician and/or the patient may mold the brace directly to the patient for an improved fit, comfort, and joint stabilization in a desired orientation.Shin cuff114 may have the additional benefit of providing some measure of local tissue compression as well as promoting desired patellar and/or general knee joint alignment, either of which may provide reduced inflammation and/or pain in the knee joint. In addition, in some embodiments,shin cuff114 may also be light weight, easy to clean, and/or waterproof.
Customizable knee brace100 may further comprise amedial element120, which comprises afirst support122, asecond support124, and ahinge126 physically couplingfirst support122 andsecond support124. In some embodiments,first support122 may be coupled tothigh cuff112 andsecond support124 may be coupled toshin cuff114. In this way,medial element120 may provide support for both the brace and the patient's knee on the side of the knee oppositelateral upright110. In some embodiments,first support122 andsecond support124 may be constructed of a material such as plastic, metal or any other suitable material, currently known or unknown, that may provide suitable strength to adequately support the patient's knee as well ascustomizable knee brace100 itself.
For treatment of medial compartment OA,medial element120 may be disposed along the medial side of the patient's affected leg such thathinge126 substantially aligns with the medial side of the knee joint and the axis along which the knee bends,first support122 is disposed along the medial, lower portion of the patients upper leg (e.g., the thigh), andsecond support124 is disposed along the medial, upper portion of the patients lower leg (e.g., the shin and/or calf).
For treatment of lateral compartment OA,medial element120 may be disposed along the lateral side of the patient's affected leg such thathinge126 substantially aligns with the lateral side of the knee joint and the axis along which the knee bends,first support122 is disposed along the lateral, lower portion of the patients upper leg (e.g., the thigh), andsecond support124 is disposed along the lateral, upper portion of the patients lower leg (e.g., the shin and/or calf).
Customizable knee brace100 may further comprise anelastomeric web framework130 coupled to at least one oflateral upright110,thigh cuff112,shin cuff114 andmedial element120.Elastomeric web framework130 may comprise a plurality of interconnectedelastomeric segments132 that define a plurality of permanent openings, at least one of which includes analignment opening134 configured to receive a patellar portion of the knee of the patient whencustomizable knee brace100 is properly worn. In some embodiments, at least segments of the plurality of interconnectedelastomeric segments132 that definealignment opening134 may have a substantially similar thickness and cross-section to one another and, preferably, have a non-planar cross section (e.g., the cross-sections of those segments comprise at least one edge that is not prescribed by a straight line).Elastomeric web framework130 is elastically stretchable and provides a light-weight, comfortable, secure fitting that supports correct knee alignment utilizing three points of leverage during gait. In some embodiments,elastomeric web framework130 may comprise silicone, however, the present application is not so limited, andelastomeric web framework130 may comprise any suitably stretchable and flexible material. Moreover, the web-like framework provides a breathable, stable, yet flexible brace that may not otherwise be possible even utilizing similar materials but not the web-like structure. In some embodiments, at least portions of a surface ofelastomeric framework130 may comprise texturing elements to promote increased gripping and reduced slippage whencustomizable knee brace100 is worn.
When properly worn,elastomeric web framework130 may be tensioned utilizing at least onetensioning element140, as will be described in more detail below, and extends in both a first,axial direction136 and a second,circumferential direction138 such that it abuts at least the lower thigh, knee, and upper shin as is disclosed in U.S. Patent Pub. No. U.S. 2006/0030804, the contents of which are incorporated by reference in their entirety. Such tensioning allowscustomizable knee brace100 as a whole, andelastomeric web framework130 in particular, to conform to the patient's knee, thereby absorbing physical shock and returning kinetic energy while ambulating in addition to providing increased stability and integrity ofcustomizable knee brace100 by virtue of the connection with at least one oflateral upright110,thigh cuff112,shin cuff114, andmedial element120. Moreover,elastomeric web framework130 is configured to disperse energy across the knee and can additionally address patellofemoral pain associated with OA at least by securing and tracking an area of a knee of a patient (e.g., the patella), while both customizing a fit of the brace around the knee of the patient and redistributing at least a portion of a load from a desired compartment of the knee of the patient (e.g., one or more of the medial, lateral, and patellofemoral compartments) when wearing the customizable knee brace. In some embodiments, tensioningelastomeric web framework130 may increase offloading of a portion of a load on a desired compartment of the knee (e.g., the medial or lateral compartment) while also increasing an amount of vertical tension inelastomeric web framework130.
At least onetensioning element140 is configured to adjust a tension ofelastomeric web framework130. In some implementations, tensioning element(s)140 may be disposed on lateral upright110 (e.g., on one or both of firstsemi-rigid support102 and second semi-rigid support104). However, the present application is not so limited and tensioning element(s)140 may be disposed at any suitable location oncustomizable knee brace100.FIG. 1 illustrates a reel-and-lace tensioning element, which comprises alace142 coupled toelastomeric web framework130 and at least onereel element144 configure to adjust a tension inlace142, thereby adjusting the tension inelastomeric web framework130. Tensioning element(s)140 are described in more detail in connection with at leastFIGS. 2 and 3. Tensioning element(s)140 are configured to provide for micro-adjustment of the tension applied toelastomeric web framework130, which not only allows adjustment of the offloading of a portion of a load from a desired compartment of the knee of the patient, but also simultaneously improves the fit ofelastomeric web framework130 against the surface of the patient's knee and preventing gapping and reducing pooching of the web. In this way, tensioning element(s)140 maintains desired tension across substantially the entirety ofelastomeric web framework130, fromthigh cuff112 toshin cuff114 and fromlateral upright110 tomedial element120.
AlthoughFIG. 1 illustrates a reel-and-lace tensioning element, the present application is not so limited, and tensioning element(s)140 may also, or alternatively, comprise any of a lever-based tensioning element, a screw-based tensioning element, a lace-and-cleat tensioning element, similar to those utilized on sail boats, buckles, a rigid post-and-strap tensioning element with belt-type holes, a hook-and-loop (e.g., Velcro®) tensioning element, a notched band-and-pawl tensioning element, similar to those utilized on ski boots, or any other apparatus configured to adjust a tension in another element.
Customizable knee brace100 may additionally comprise at least onestrap150 configured to wrap around at least a posterior portion of the patient's knee thereby securing the brace to the patient. In some embodiments, strap(s)150 may be physically coupled tomedial element120 and may be configured to couple to respective fastening element(s)152, which are configured to receive strap(s)150 and are coupled to lateral upright110 (as shown inFIG. 1). In some other embodiments, strap(s)150 may be physically coupled tolateral upright110 and may be configured to couple to respective fastening element(s)152 coupled to medial element120 (opposite of that shown inFIG. 1). Strap(s)150 may be sized appropriately for the requirements of the patient and of thecustomizable knee brace100. In some embodiments, strap(s)150 may be further trimmed by a clinician and/or the patient in accordance with the requirements of the patient and of thecustomizable knee brace100. Further, in some embodiments, strap(s)150 may be removable for hygienic cleansing or for any other desired purpose.
Customizable knee brace100 may additionally comprise athigh pad154 configured to provide cushioning to the patient's thigh. In some embodiments,thigh pad154 may be formable, preferably heat-formable, may comprise foam, fabric, rubber, or any other cushioning material, and may promote improved comfort and fit ofcustomizable knee brace100. In some embodiments,thigh pad154 may be physically coupled to and removable from atleast thigh cuff112 and, in some embodiments, may also be coupled to and removable from either or both oflateral upright110 andmedial element120.
Customizable knee brace100 may additionally comprise acalf pad158 configured to provide cushioning to the patient's calf. In some embodiments,calf pad158 may be formable, preferably heat-formable, may comprise foam, fabric, rubber, or any other cushioning material, and may promote improved comfort and fit ofcustomizable knee brace100. In some embodiments,calf pad158 may be physically coupled to and removable from atleast shin cuff114 and, in some embodiments, may also be coupled to and removable from either or both oflateral upright110 andmedial element120. Although shown as separate, in some embodiments,thigh pad154 andcalf pad158 may comprise a unitary member configured to provide cushioning to both the patient's posterior thigh and calf.
In some embodiments,customizable knee brace100 may further comprise a removable wearable sleeve (not shown inFIG. 1) configured to be worn over the knee joint and under the remainder ofcustomizable knee brace100. In some embodiments, the wearable sleeve may comprise a lightweight, stretchy and breathable material that provides some degree of compression to the patient's knee joint.
Through the combined operation of any combination oflateral upright110,medial element120,thigh cuff112,shin cuff114,elastomeric web framework130, tensioning element(s)140, strap(s)150,thigh pad154, and/orshin pad158, medial-lateral and rotation control, with or without Varus/Valgus adjustment, may be customized to fit a specific patient.
FIG. 2 illustrates a plan view of an embodiment of an upper portion ofcustomizable knee brace100 ofFIG. 1, utilizing a reel-and-lace tensioning element, in accordance with some embodiments.FIG. 2 illustrateslateral upright110, comprising firstsemi-rigid support102, secondsemi-rigid support104 and hinge106,thigh cuff112,shin cuff114,medial element120, comprisingfirst support122,second support124 and hinge126,elastomeric web framework130, comprising the plurality of interconnectedelastomeric segments132 definingalignment opening134, andtensioning element140, comprising lace142 (not shown inFIG. 2) andreel element144, as previously described in connection withFIG. 1.FIG. 2 illustrates an embodiment whereelastomeric web framework130 at least partially overlapsthigh cuff112. In addition,FIG. 2 illustratestensioning element140 as a reel-and-lace tensioning element, comprisinglace142 coupled toelastomeric web framework130 andreel element144 configured to adjust a tension inlace142, thereby adjusting the tension inelastomeric web framework130. As shown inFIG. 2,lace142 may be anchored at one or both ends toelastomeric web framework130. However,lace142 may also be anchored at one or both ends tolateral upright110, for example, to firstsemi-rigid upright102.Lace142 may be threaded betweenelastomeric web framework130 andlateral upright110 one or more times, passing throughguides206 coupled to one or both ofelastomeric web framework130 andlateral upright110, which allowlace142 to slide freely alongguides206 aslace142 is tensioned. In operation, rotatingreel element144 causes lace142 to move such thatelastomeric web framework130 moves toward or away fromlateral upright110, and adjusting the tension inelastomeric web framework130. In some embodiments, reel-and-lace tensioning element140 may comprise an integrated dial or reel system such as the Boa closure systems developed by Boa Technologies, Inc.
AlthoughFIG. 2 illustrateslace142 anchored at one or both ends toelastomeric web framework130, the present application is not so limited andlace142 may be anchored at one or both ends of one or more oflateral upright110,thigh cuff112, shin cuff114 (not shown inFIG. 2),medial element120 andelastomeric web framework130. In such embodiments,lace142 may be threaded betweenelastomeric web framework130 and at least one oflateral upright110,thigh cuff112, shin cuff114 (not shown inFIG. 2) and/ormedial element120 one or more times, passing throughguides206 coupled to one or more ofelastomeric web framework130,lateral upright110,thigh cuff112,shin cuff114, and/or medial element120 (not shown inFIG. 2), which allowlace142 to slide freely alongguides206 aslace142 is tensioned.
FIG. 3 illustrates a plan view of another embodiment of an upper portion ofcustomizable knee brace100 ofFIG. 1, utilizing a reel-and-lace tensioning element, in accordance with some embodiments.FIG. 3 illustrates each aspect previously described in connection withFIG. 2, however, illustratingelastomeric web framework130 as being disposed adjacent to, but not overlapping,thigh cuff112.
FIG. 4 illustrates a perspective, magnified view oflateral upright110 ofcustomizable knee brace100 ofFIG. 1, in accordance with some embodiments.FIG. 4 illustrates firstsemi-rigid support102, secondsemi-rigid support104, hinge106, tensioningelements140 andfastening elements152, as previously described in connection withFIG. 1. Compared toFIG. 1,FIG. 4 shows a larger view with more detail for each of these elements.
FIG. 5 illustrates an exploded perspective view oflateral upright110 ofFIGS. 1 and 4, in accordance with some embodiments. Although several additional elements oflateral upright110 are described in connection withFIG. 5, all, a subset of all, or none, of these additional elements may be required for proper operation depending on the specific embodiment.
FIG. 5 illustrates alogo plate502, ahinge bezel504, an unthreadedhinge plate506, and a firstlow friction washer508 disposed on an outside (e.g., lateral side) of firstsemi-rigid support102 and secondsemi-rigid support104 oflateral upright110.FIG. 5 further illustrates a secondlow friction washer510, a threadedhinge plate512, plastic threadedhinge plate514, and acondyle plate516 on an inside (e.g., medial side) of firstsemi-rigid support102 and secondsemi-rigid support104 oflateral upright110. Each ofhinge bezel504, unthreadedhinge plate506, firstlow friction washer508, firstsemi-rigid support102, secondsemi-rigid support104, secondlow friction washer510, threadedhinge plate512, plastic threadedhinge plate514, andcondyle plate516 may comprise holes to receivescrews518, which are configured to secure the elements oflateral upright110 together into a functional, integrated unit.FIG. 5 further illustratesremovable condyle pads108a,108b,108c,as previously described in connection withFIG. 1.
FIG. 6 illustrates an exploded perspective view ofremovable condyle pads108a,108b,108cfor coupling tolateral upright100 ofFIGS. 1, 4 and 5, in accordance with some embodiments.FIG. 6 illustrates firstsemi-rigid support102, secondsemi-rigid support104, hinge106, andremovable condyle pads108a,108b,108c,as previously described in connection withFIG. 1. In some embodiments, each ofremovable condyle pads108a,108b,108cmay have a different thickness. Accordingly, a clinician and/or patient may select one ofremovable condyle pads108a,108b,108cfor coupling to hinge106 in order to provide a desired spacing betweenhinge106 and the knee of the patient. In some other embodiments, a combination ofremovable condyle pads108a,108b,108cmay be utilized simultaneously in order to provide a greater selection and greater range of spacings betweenhinge106 and the knee of the patient as compared to selecting only one ofremovable condyle pads108a,108b,108c.
FIG. 7 illustrates a perspective view ofmedial element120 ofcustomizable knee brace100 ofFIG. 1, in accordance with some embodiments.FIG. 7 illustratesfirst support122,second support124, and hinge126, as previously described in connection withFIG. 1. Compared toFIG. 1,FIG. 7 merely shows a larger view with more detail for each of these elements.
FIG. 8 illustrates akit800 for reducing or substantially eliminating deformation of elements of the customizable knee brace ofFIG. 1 during physical transportation and/or storage, in accordance with some embodiments. In some embodiments,kit800 may comprise each element or a subset of the elements ofcustomizable knee brace100, as previously described in connection withFIG. 1. In some embodiments,customizable knee brace100 may be assembled inkit800. In some other embodiments,customizable knee brace100 may be unassembled as its constituent elements inkit800. In some embodiments,kit800 may further comprise a plurality ofheating pads802 configured to be applied directly tothigh cuff112 and/orshin cuff114 to heat them into a temperature range within which they become formable, as previously described, such that a clinician and/or the patient may conformthigh cuff112 andshin cuff114 to the patient's thigh and calf for a customized fit. In some embodiments,heating pads802 may further comprise a surface having an adhesive thereon such thatheating pads802 may be adhered for heating the respective element ofcustomizable knee brace100. In some embodiments,kit800 may further comprise packaging804 configured to reduce or substantially eliminate alteration of a shape of any portion ofcustomizable knee brace100 during transit or storage withinkit800. In some embodiments,packaging804 may comprise a plurality of foam inserts defining spaces within which at least respective portions of customizable knee brace100 (e.g.,thigh cuff112 and shin cuff114) may be inserted such that the general shape ofcustomizable knee brace100 is maintained during transport and/or storage.
FIG. 9 illustrates aflowchart900 for a method of treatment of osteoarthritis utilizing a customizable knee brace as described in any of the preceding FIGs., in accordance with some embodiments. Although particular steps are described herein, the present application is not so limited and alternative methods of treatment of OA utilizing a customizable knee brace may include a subset of these steps, in the same or different order, and may additionally include one or more addition steps not described herein.
Flowchart900 may includestep902, which includes forming a thigh cuff of the customizable knee brace to conform to a thigh of a patient. For example, as previously described in connection with at leastFIG. 1,thigh cuff112 may be heat-formed to conform to the patient's thigh in a temperature range that at least partially overlaps 160-180 degrees Fahrenheit, or comprise a formable metal.
Flowchart900 may includestep904, which includes forming a shin cuff of the customizable knee brace to conform to a shin of the patient. For example, as previously described in connection with at leastFIG. 1,shin cuff114 may be heat-formed to conform to the patient's shin in a temperature range that at least partially overlaps 160-180 degrees Fahrenheit, or comprise a formable metal. In some embodiments, as previously described in connection with at leastFIG. 1,customizable knee brace100 may further compriselateral upright110, which comprises at least firstsemi-rigid support102 configured to be coupled tothigh cuff112, secondsemi-rigid support104 configured to be coupled toshin cuff114, and hinge106 physically coupling firstsemi-rigid support102 and secondsemi-rigid support104.
Flowchart900 may includestep906, which includes securing an area of a knee of a patient utilizing an elastomeric web framework coupled to the lateral upright. For example, as previously described in connection with at leastFIG. 1, the patella of the patient may be secured utilizingalignment opening134 ofelastomeric web framework130, which may be coupled tolateral upright110.
Flowchart900 may includestep908, which includes adjusting a tension of the elastomeric web framework utilizing at least one tensioning element. For example, as previously described in connection with at leastFIGS. 1-3, tension inelastomeric web framework130 may be adjusted utilizing tensioning element(s)140. Adjusting the tension ofelastomeric web framework130 redistributes at least a portion of a load from a medial compartment (or from a lateral compartment) of the patient's knee. In some embodiments, adjusting the tension ofelastomeric web framework130 comprises increasing an amount of vertical tension ofelastomeric web framework130 while simultaneously increasing an offloading of a portion of a load on a desired compartment of the knee (e.g., the medial or lateral compartments).
As previously described in connection with at leastFIGS. 1 and 2, tensioning element(s) may comprise at least onereel element144 andlace142 that physically coupleselastomeric web framework130 tolateral upright110. In such embodiments, adjusting the tension ofelastomeric web framework130 may comprise adjusting the at least onereel element144 to adjust a tension inlace142.
In some embodiments,flowchart900 may further include bending at least one of the first semi-rigid support and the second semi-rigid support to a desired angle based at least in part on an alignment of the knee so as to redistribute a portion of a load from a medial compartment of the knee of the patient. For example, as previously described in connection with at leastFIG. 1, one or both of firstsemi-rigid support102 and secondsemi-rigid support104 may be adjusted or bent to a desired angle based at least in part on an alignment of the patient's knee so as to redistribute a portion of a load from a medial compartment (or from a lateral compartment) of the patient's knee.
In some embodiments,flowchart900 may further include disposing at least one removable condyle pad between the hinge and the knee of the patient, thereby providing a desired spacing between the hinge and the knee of the patient. For example, as previously described in connection with at leastFIGS. 1 and 4-6,removable condyle pads108a,108b,108cmay each have different thicknesses and may be coupled betweenhinge106 and the patient's knee, thereby providing a desired spacing betweenhinge106 and the patient's knee.
In some embodiments,flowchart900 may further include wrapping at least one strap, coupled to the lateral upright, around at least a posterior portion of the knee of the patient thereby securing the brace to the patient. For example, as previously described in connection with at leastFIG. 1, strap(s)150, which may be coupled tolateral upright110 and/ormedial element120, may be wrapped around at least a posterior portion of the patient's knee, thereby securingcustomizable knee brace100 to the patient.
In some embodiments,flowchart900 may further include disposing a formable pad at the knee of the patient. For example, as previously described in connection with at leastFIG. 1, one or both ofthigh pad154 andshin pad158 may be disposed at, over, or on the patient's thigh and/or shin.
While certain embodiments are described herein in detail, it is to be understood that this disclosure is illustrative and exemplary, and is made merely for the purposes of providing a full and enabling disclosure. The detailed disclosure herein of one or more embodiments is not intended, nor is to be construed, to limit the scope of patent protection, for which scope is to be defined by the claims and the equivalents thereof. It is not intended that the scope of patent protection be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself.