This invention relates generally to the field of articles worn by persons to reduce the likelihood, severity, or exacerbation of injury to the body, and more specifically to the field of braces worn on the wrist.
The wrist connects the forearm and hand of a person, providing a pivot point that allows the hand to flex and extend relative to the forearm. The wrist itself is made up of soft tissue, including skin, ligaments, and cartilage, providing a structural connection between the forearm and hand, and connecting the muscles of the forearm to the fingers and hand. The wrist also carries nerves that provide sensation to the hand. The wrist is a complex system providing a wide range of motions, from the precise movements of a surgeon to the impacts and strenuous movements found in sports such as tennis or football.
The wrist is one of the most frequently used joints in the body, as it is required for any activity that involves use of the hands. The wide range of activities involving the wrist results in a similarly broad range of sources of injury to the wrist. Persons engaged in occupations involving prolonged typing, for example when using a computer keyboard, may be subject to carpal tunnel syndrome, a potentially serious condition. Persons engaged in sports, for example tennis, may subject their wrists to high levels of stress that can cause injury to the wrist. An accidental fall can also cause a person's wrist to move beyond its normal range of motion, thereby causing injury. Wrist braces, for example of the types described in U.S. Pat. No. 4,584,993, are often used by persons with wrist injuries.
Because the wrist can be injured in many different ways, injuries to the wrist also vary widely, both in the nature and in the severity of the injury. An injured or sprained wrist can range from mild discomfort to debilitating pain. A mildly injured wrist can result in a limited range of motion, making sports less enjoyable and reducing athletic performance. A severely injured wrist can prevent a person from earning a living or performing their normal day-to-day activities, because of the importance of the hand and wrist to the activities of normal daily living.
Because injuries to the wrist vary both in the nature and in the severity of the injury, the appropriate therapy for a wrist injury also varies. In the early stages of recovery from a severe wrist injury, complete immobilization of the wrist may be necessary or advisable. When the wrist injury is initially less severe, or when recovery from a more serious injury is well underway, flexible support without complete immobilization may be appropriate. A typical rehabilitation protocol for a wrist injury may begin with complete immobilization, followed by decreasing levels of support until the wrist is completely healed.
For these reasons, what is needed is a wrist support adjustable to suit a wide range of wrist injuries at different stages of healing, that can provide immobilization or flexible support and that can apply different levels of compression to the wrist.
The present invention features an adjustable wrist brace that includes a removable splint and an adjustable compression strap adapted to encircle the wrist. Such a wrist brace can provide a variable degree of support to the wrist, ranging from complete immobilization when the splint is in place to flexible support when the splint is removed. Such a wrist brace can also provide either high or low levels of compression to the wrist, with the degree of compression being selectable by the user.
A preferred embodiment of a wrist brace according to the invention includes a base formed of elastic sheet material shaped to closely engage a wrist, a resilient support member and an adjustably rigid support member, each support member fixed on the base and positioned on the proximal side of the wrist when the base is engaged on the wrist, and an elastic support strap with one end fixed to the base adjacent the resilient support member and a free end, wherein the adjustably rigid support member includes a splint pocket with a splint adapted to be inserted into and removed from the splint pocket, and wherein the elastic support strap is adapted to be fastened about the wrist under either a relatively high or a relatively low level of tension.
Such a wrist brace can provide complete or nearly complete immobilization when the splint is inserted into the splint pocket, and it can provide flexible support when the splint is removed from the splint pocket. Such a wrist brace can provide a relatively high degree of compression and wrist support when the elastic support strap is fastened under a high level of tension, or it can provide a relatively low degree of compression and wrist support when the elastic support strap is fastened under a low level of tension. In this way, a single wrist brace according to the invention can be adjusted to provide four different levels of immobilization and wrist support; (1) immobilization with high wrist compression; (2) immobilization with low wrist compression; (3) flexible support with high wrist compression; and (4) flexible support with low wrist compression.
Thus, a single wrist brace according to the invention can be used for the entire cycle of recovery from a wrist injury. In the early stages of recovery, the removable splint can be inserted in the pocket to provide immobilization. In later stages of recovery, the splint can be removed to allow a greater range of motion while maintaining the flexible support provided by the brace without the splint. Similarly, the compression strap can be adjusted to provide a high level of compression or a low level of compression, as appropriate.
Further, a wrist brace according to the invention is adjustable to provide optimum immobilization and compression to persons having many different types of wrist injuries. This can reduce the number of different products a retailer must keep in stock to meet the needs of customers having a variety of wrist injuries.
Another embodiment of a wrist brace according to the invention includes a base formed of elastic sheet material shaped to closely engage a wrist, a resilient support member and an adjustably rigid support member, each support member fixed on the base and positioned on the proximal side of the wrist when the base is engaged on the wrist, and an elastic support strap with one end fixed to the base adjacent the resilient support member and a free end adapted to be fastened about the wrist under tension, wherein the adjustably rigid support member includes a splint pocket with a splint adapted to be inserted into and removed from the splint pocket.
An alternative embodiment of a wrist brace according to the invention includes a base formed of elastic sheet material shaped to closely engage a wrist, a resilient support member fixed on the base and positioned on the proximal side of the wrist when the base is engaged on the wrist, and an elastic support strap with one end fixed to the base adjacent the resilient support member and a free end, wherein the elastic support strap is adapted to be fastened about the wrist under either a relatively high or a relatively low level of tension.
Further objects, features, and advantages of the invention will be apparent from the following detailed description when taken in conjunction with the accompanying drawings.
In the drawings:
With reference to the drawings,
The wrist brace 20 includes a base 21 adapted to wrap around the wrist and portions of the hand of a wearer. The base 21 has an interior face 22, shown in
The lateral edges of the base 21 include a first base fastening strip 24 bearing first base fastener 25 and a second base fastening strip 26 bearing second base fastener 27. The first base fastening strip 24 is permanently mounted to the interior face 22 and the second base fastening strip 26 is permanently mounted to the exterior face 23, for example by stitching 28. The first base fastener 25 and second base fastener 27 preferably comprise synthetic materials of the type that adhere when pressed together, for example the hook and loop materials sold under the trademark VELCRO, although this is not required and other suitable fasteners could be used such as snaps, buckles, buttons, or zippers. The base 21 is applied to the wrist by wrapping the base around the wrist and then fastening the first base fastener to the second base fastener.
The brace 20 includes an inside support member, indicated generally at 30, mounted to the inside face 22 of the base 21. As perhaps best shown in the cross-section of
The inside support member 30 also includes spoon channel stitching 35 that forms an inside support member spoon pocket, indicated generally at 36, between the inside face 22 of the base and the internal sheet panel 33, the spoon pocket 36 having an inside support member spoon pocket mouth 37. The inside support member spoon pocket 36 is adapted to receive an inside support member spoon, indicated generally at 38. The inside support member spoon 38 is adapted to be inserted and removed from the inside support member spoon pocket, for example by including a removal member 95. The removal member is preferably formed as a loop of leather cord material, and is preferably fastened to the inside support member spoon 38 by passing the leather cord material through a hole in the inside support member spoon 38. However, this is not required and a removal member 95 could be formed in other ways, for example as a strip of sheet material or a cord glued or fastened to the inside support member spoon 38.
The brace 20 includes an outside support member, indicated generally at 40, mounted to the outside face 23 of the base 21. As perhaps best shown in the cross-section of
The outside support member 40 also includes resilient member channel stitching 45 that forms five resilient member pockets 46 between the external sheet panel 41 and the internal sheet panel 43. Each resilient member pocket 46 contains a resilient member, indicated generally at 47.
As shown in
The anchor strap 50 has two lateral edges, a thumb-side edge 55 and a finger-side edge 56. The edges of the anchor strap and adjacent edges of the base 21 include edge binding 60, preferably secured by edge binding stitching 61. An anchor strap first fastening strip 65 bearing first anchor strap fastener 66 is mounted to the interior face 54 of the free end 52 of the anchor strap 50, for example by stitching. An anchor strap second fastening strip 67 bearing second anchor strap fastener 68 is mounted to the exterior face 23 of the base 21, for example by stitching 28. The first anchor strap fastener 66 and second anchor strap fastener 68 preferably comprise synthetic materials of the type that adhere when pressed together, for example the hook and loop materials sold under the trademark VELCRO, although this is not required and other suitable fasteners could be used such as snaps, buckles, buttons, or zippers.
As perhaps best shown in
The compression strap 70 has an exterior face 73 and an interior face 74. The interior face 74 of the free end 72 of the compression strap 70 includes a fastening strip 80 bearing free end fastener 81. The exterior face 73 of the compression strap 70 includes a first middle fastening patch 82 bearing first middle fastener 83, the first middle fastening patch 82 mounted near the fixed end 71 of the compression strap 70. The exterior face 73 of the compression strap 70 also includes a second middle fastening patch 84 bearing second middle fastener 85, the second middle fastening patch 84 mounted near the first middle fastening patch 82 and between the first middle fastening patch 82 and the free end 72 of the compression strap 70.
The free end fastener 81 and the first and second middle fasteners 83, 85 preferably comprise synthetic materials of the type that adhere when pressed together, for example the hook and loop materials sold under the trademark VELCRO, although this is not required and other suitable fasteners could be used such as snaps, buckles, buttons, or zippers. The free end fastener 81 and the first and second middle fasteners 83, 85 are selected so that the free end fastener 81 can be releasably fastened to either the first middle fastener 83 or the second middle fastener 85.
There are various possibilities with regard to a wrist brace with adjustable support according to the invention.
The specific number of sheet layers, and the specific sheet materials comprising those layers, used in the inside support member shown herein are not required in a wrist brace according to the invention. Similarly, the specific number of sheet layers, and the specific sheet materials comprising those layers, used in the outside support member shown herein are not required in a wrist brace according to the invention. Different numbers of layers and different types of materials could be used in either the inside support member or the outside support member of a wrist brace according to the invention.
Although the outside support member includes five resilient member pockets, each containing a resilient member, this is not required. A different number of resilient member pockets, each containing a resilient member, could be used. It is not required that every resilient member pocket contains a resilient member, nor is it required that the resilient members be permanently enclosed in the pockets.
Although the drawings show a wrist brace adapted to be worn on the right hand, the construction of the wrist brace can be readily adapted to be worn on the left hand.
Although the embodiment of a wrist brace according to the invention disclose herein includes a single removable spoon, this is not required. A kit containing a plurality of spoons, each spoon having a different degree of stiffness and rigidity, could be provided. The rigidity of the spoons could be adjusted, for example, by altering the thickness, width, or shapes of the spoons, or by forming the spoons from variety of materials, such as plastics or metals having varying rigidity.
It is understood that the invention is not confined to the embodiments set forth herein as illustrative, but embraces all such forms thereof as come within the scope of the following claims.