Knee brace for hyperextension

Abstract

To provide a genu recurvatum knee brace that can adjust the extension limit angle of the knee. [Solution] The knee band 70 includes a knee posterior pad 71 that presses against the posterior part of the knee joint, an upper posterior band 74 with one end fixed above the one connecting portion 21a, an upper posterior band 75 with one end fixed above the other connecting portion 21b, a lower posterior band 76 with one end fixed below the one connecting portion 21a, and an lower posterior band 77 with one end fixed below the other connecting portion 21b. A tightening mechanism 80 is provided that allows the pressing force applied to the posterior part of the knee joint by the knee posterior pad 71 to be increased by pulling the other end of the upper posterior band 74, the other end of the upper posterior band 75, the other end of the lower posterior band 76, and the other end of the lower posterior band 77.

Description

Technical Field

[0001] The present invention relates to a knee brace for counteracting knee hyperextension used for the knee joint.

Background Art

[0002] The inventor has already proposed a knee brace for counteracting knee hyperextension that is easy to wear and allows for sitting upright while wearing it (Patent Document 1). In the invention of Patent Document 1, weight reduction is achieved, there is no sense of compression, and smooth flexion and extension can be performed by support plates respectively arranged on both sides of the joint, first arms rotatably provided on one end side of these support plates, second arms rotatably provided on the other end side of these support plates, and a connecting member connecting these support plates.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to the invention of Patent Document 1, it is a knee brace that is difficult to tell from the appearance that it has been worn, allows for sitting upright, and can be adapted to prevent knee hyperextension. However, there are individual differences in the knee extension angle, and there is also a desire to easily change the knee extension limit angle according to the knee condition even for the same user.

[0005] Therefore, an object of the present invention is to provide a knee brace for counteracting knee hyperextension that can easily adjust the knee extension limit angle.

Means for Solving the Problems

[0006] The genu retraction knee brace of the present invention as described in claim 1 comprises a pair of support plates 10 arranged on both sides of the knee joint, a connecting member 20 arranged behind the knee joint and connecting the pair of support plates 10, each thigh arm 30 rotatably provided on the upper end side of the support plates 10, each lower leg arm 40 rotatably provided on the lower end side of the support plates 10, each thigh front band 51 arranged on each thigh arm 30, each lower leg front band 61 arranged on each lower leg arm 40, and a knee band 70 arranged on the knee joint, wherein one end of the connecting member 20 is connected to one of the support plates 10 by a one-side connecting portion 21a, and the other end of the connecting member 20 is connected to the other support plate 10 by a other-side connecting portion 21b, the front of the thigh is pressed by the thigh front band 51, and the front of the lower leg is pressed by the lower leg front band 61 A knee brace for genu recurvatum that suppresses genu recurvatum by pressing on the posterior part of the knee joint with the knee band 70, wherein the knee band 70 comprises a posterior knee pad 71 that presses on the posterior part of the knee joint, an upper posterior band 74 with one end fixed above the one connecting portion 21a, an upper posterior band 75 with one end fixed above the other connecting portion 21b, a lower posterior band 76 with one end fixed below the one connecting portion 21a, and a lower posterior band 77 with one end fixed below the other connecting portion 21b, and is characterized by having a tightening mechanism 80 that can increase the pressing force on the posterior part of the knee joint by the posterior knee pad 71 by pulling the other end of the upper posterior band 74, the other end of the upper posterior band 75, the other end of the lower posterior band 76, and the other end of the lower posterior band 77. The present invention as described in claim 2 is a genu recurvatum knee brace as described in claim 1, wherein the tightening mechanism 80 has a wire 81 that is routed around the other end of the one upper rear band 74, the other end of the other upper rear band 75, the other end of the one lower rear band 76, and the other end of the other lower rear band 77, and a winding member 82 that winds up the wire 81, wherein the winding member 82 winds up the wire 81 so that the other end of the one upper rear band 74, the other end of the other upper rear band 75, the other end of the one lower rear band 76, and the other end of the other lower rear band 77 are brought into close proximity, and the pressing force applied to the posterior part of the knee joint by the posterior knee pad 71 is increased. The present invention as described in claim 3 is characterized in that, in the hyperextension knee brace described in claim 2, the winding member 82 is attached to the posterior knee pad 71. The present invention as described in claim 4 is characterized in that, in the genu retraction knee brace as described in claim 2, the winding member 82 is attached to any of the one upper rear band 74, the other upper rear band 75, the one lower rear band 76, and the other lower rear band 77. The present invention as described in claim 5 is characterized in that, in the hyperextension knee orthosis described in claim 1, the knee band 70 has a knee front band 72 extending from the knee rear pad 71, and the knee front band 72 is used positioned in front of the knee joint. The present invention as described in claim 6 is a genu reflex knee brace as described in claim 5, wherein the anterior knee band 72 comprises an upper anterior knee band 72x and a lower anterior knee band 72y, the upper anterior knee band 72x is used positioned above the anterior part of the knee joint, and the lower anterior knee band 72y is used positioned below the anterior part of the knee joint. [Effects of the Invention]

[0007] According to the genu recurvatum knee orthosis of the present invention, when suppressing genu recurvatum by pressing the anterior part of the thigh with an anterior thigh band, pressing the anterior part of the lower leg with an anterior lower leg band, and pressing the posterior part of the knee joint with a knee band, the extension restriction angle of the knee can be easily adjusted by the tightening mechanism. [Brief explanation of the drawing]

[0008] [Figure 1] Photographs of a hyperextension knee brace according to one embodiment of the present invention, taken from different angles from the front. [Figure 2] Photographs of the same device from different angles, viewed from the front. [Figure 3] Photographs of the same device from different angles, viewed from the front. [Figure 4] Photographs of the same device from different angles, viewed from the front. [Figure 5] Photographs of the same orthosis from different angles, viewed from the rear at an angle. [Figure 6] Photographs of the same orthosis from different angles, viewed from the rear at an angle. [Figure 7] Photographs of the device from the rear and side with the protective band extended. [Figure 8] Photographs of the device from the rear and side with the protective band extended. [Figure 9] Photographs of the device from the rear and side with the protective band extended. [Figure 10] Photographs of the device from the rear and side while the protective band is attached. [Figure 11] Photographs of the device from the rear and side while the protective band is attached. [Figure 12] Photograph of a genu reflex knee brace according to another embodiment of the present invention, viewed from the front. [Figure 13] A photograph of the same device from the front. [Figure 14] Photographs of the same device from different angles, viewed from the front. [Figure 15] Photographs of the same device from different angles, viewed from the front. [Figure 16] Photographs of the same device from different angles, viewed from the front. [Figure 17]Conceptual configuration diagram of the tightening mechanism [Figure 18] Photos of the device from different angles from the side [Figure 19] Photos of the device from different angles from the side [Figure 20] Photos of the device from different angles from the side

Mode for Carrying Out the Invention

[0009] The knee brace for counterextension according to the first embodiment of the present invention has a knee band, a rear knee pad that presses against the back of the knee joint, an upper rear band on one side whose one end is fixed at a position above the one connecting portion, an upper rear band on the other side whose one end is fixed at a position above the other connecting portion, a lower rear band on one side whose one end is fixed at a position below the one connecting portion, and a lower rear band on the other side whose one end is fixed at a position below the other connecting portion. By pulling the other ends of the upper rear band on one side, the other end of the upper rear band on the other side, the other end of the lower rear band on one side, and the other end of the lower rear band on the other side, a tightening mechanism is provided that can increase the pressing force on the back of the knee joint by the rear knee pad. According to this embodiment, when suppressing counterextension by pressing the front of the thigh with the front thigh band, pressing the front of the lower leg with the front lower leg band, and pressing the back of the knee joint with the knee band, the tightening mechanism can easily adjust the knee extension limit angle.

[0010] A second embodiment of the present invention is a genu recurvatum knee brace according to the first embodiment, wherein the tightening mechanism includes a wire that is routed around the other end of one upper posterior band, the other end of the other upper posterior band, the other end of one lower posterior band, and the other end of the other lower posterior band, and a winding member that winds up the wire. By winding up the wire with the winding member, the other end of one upper posterior band, the other end of the other upper posterior band, the other end of the other lower posterior band, and the other end of the other lower posterior band come into close proximity, and the pressing force applied to the posterior part of the knee joint by the posterior knee pad increases. According to this embodiment, by winding up the wire with the winding member and increasing the pressing force applied to the posterior part of the knee joint by the posterior knee pad, the knee extension limitation angle can be easily adjusted.

[0011] A third embodiment of the present invention is a genu reflex knee brace according to the second embodiment, wherein the winding member is attached to the posterior knee pad. According to this embodiment, by attaching the winding member to the posterior knee pad, it is easier to bring the other end of one upper posterior band, the other end of the other upper posterior band, the other end of one lower posterior band, and the other end of the other lower posterior band evenly close together.

[0012] A fourth embodiment of the present invention is a genu reflex knee brace according to the second embodiment, wherein the winding member is attached to one of the upper posterior band, the other upper posterior band, the lower posterior band, and the other lower posterior band. According to this embodiment, the winding member can be shifted from the center position posterior to the knee joint, making it easier to operate the winding member.

[0013] A fifth embodiment of the present invention is a genu reflex knee brace according to the first embodiment, wherein the knee band has a knee anterior band extending from a knee posterior pad, and the knee anterior band is positioned and used in front of the knee joint. According to this embodiment, the effect of preventing the brace from slipping down can be enhanced.

[0014] A sixth embodiment of the present invention is a genu reflex knee brace according to the fifth embodiment, wherein the knee anterior band includes an upper knee anterior band and a lower knee anterior band, the upper knee anterior band is positioned above the anterior part of the knee joint, and the lower knee anterior band is positioned below the anterior part of the knee joint. According to this embodiment, the effect of preventing the brace from slipping down and the fit can be improved. [Examples]

[0015] Below, an embodiment of the present invention, specifically a knee brace for hyperextension, will be described with reference to the drawings. Figures 1 to 11 are photographs showing a genu recurvatum knee brace according to this embodiment.

[0016] Figures 1 through 4 are photographs of the same orthosis from different angles viewed from the front. As shown in Figures 1 to 4, the genu recurvatum knee brace according to this embodiment comprises a pair of support plates 10 positioned on both sides of the knee joint, a connecting member 20 positioned behind the knee joint and connecting the pair of support plates 10, each thigh-side arm 30 rotatably provided on the upper end of the support plates 10, each lower leg-side arm 40 rotatably provided on the lower end of the support plates 10, each thigh-side arm 30--front band 51 positioned on each lower leg-side arm 40--front band 61 positioned on each lower leg-side arm 40, and a knee band 70 positioned on the knee joint. One end of the connecting member 20 is connected to one support plate 10a by one connecting portion 21a, and the other end of the connecting member 20 is connected to the other support plate 10b by the other connecting portion 21b.

[0017] The anterior thigh band 51 presses against the front of the thigh. As shown in Figures 3 and 4, the front thigh band 51 is rotatably fixed to the upper end fixing device 31b of the other thigh arm 30b. Furthermore, as shown in Figure 1, the front thigh band 51 is folded back by a square ring 32a that is rotatably fixed to the upper end fixing device 31a of one of the thigh arms 30a, and then attached to itself by a hook-and-loop fastener.

[0018] The anterior lower leg band 61 presses against the front of the lower leg. As shown in Figures 3 and 4, the front lower leg band 61 is rotatably fixed to the lower end fixing device 41b of the other lower leg arm 40b. Furthermore, as shown in Figure 1, the front lower leg band 61 is folded back by a square ring 42a that is rotatably fixed to the lower end fixing device 41a of one of the lower leg arms 40a, and connects to itself with a hook-and-loop fastener.

[0019] The knee band 70 applies pressure to the posterior aspect of the knee joint. The knee band 70 includes a posterior knee pad 71 that presses against the posterior part of the knee joint, an anterior knee band 72 extending from the upper part of the posterior knee pad 71, and a protective band 73 extending from the lower part of the posterior knee pad 71. The anterior knee band 72 is used by positioning it in front of the knee joint. The anterior knee bands 72, which extend from both sides of the upper part of the posterior knee pad 71, are connected at the anterior knee joint using hook-and-loop fasteners. Positioning the anterior knee band 72 in front of the knee joint enhances the effect of preventing the brace from slipping down.

[0020] Figures 5 and 6 are photographs of the same orthosis from different angles, viewed from the rear at an oblique angle. As shown in Figures 5 and 6, the genu recurvatum knee brace according to this embodiment comprises a posterior thigh band 52 positioned on each thigh arm 30 and a posterior lower leg band 62 positioned on each lower leg arm 40.

[0021] The posterior thigh band 52 is positioned on the back of the thigh to prevent the brace from slipping down. As shown in Figure 6, the rear thigh band 52 is rotatably fixed to the upper end fixing device 31a of one thigh arm 30a. Furthermore, as shown in Figure 5, the rear thigh band 52 is folded back by a square hook 32b which is rotatably fixed to the upper end fixing device 31b of the other thigh arm 30b, and then attached to itself by a hook-and-loop fastener.

[0022] The lower leg posterior band 62 is positioned on the posterior side of the lower leg to prevent the orthosis from slipping down. As shown in Figure 6, the lower leg posterior band 62 is rotatably fixed to the lower end fixing device 41a of one lower leg arm 40a. Furthermore, as shown in Figure 5, the lower leg posterior band 62 is folded back by a rectangular ring 42b which is rotatably fixed to the lower end fixing device 41b of the other lower leg arm 40b, and then connected to itself by a hook-and-loop fastener.

[0023] Figures 7 to 9 are rear and side views of the device with the protective band extended, Figure 7(b) is a close-up of the main part of Figure 7(a), Figure 8(b) is a close-up of the main part of Figure 8(a), and Figure 8(c) is a conceptual diagram of the tightening mechanism.

[0024] Figures 7 to 9 show the protective band 73 deployed. The knee band 70 includes a knee posterior pad 71 that presses against the posterior part of the knee joint, one upper posterior band 74 whose one end is fixed above one connecting portion 21a, one upper posterior band 75 whose one end is fixed above the other connecting portion 21b, one lower posterior band 76 whose one end is fixed below one connecting portion 21a, and one lower posterior band 77 whose one end is fixed below the other connecting portion 21b.

[0025] On the other hand, the upper rear band 74 is rotatably fixed at one end to one support plate 10a by a fastener 74x, and has a string threading portion 74y at the other end. On the other hand, the upper rear band 75 is rotatably fixed at one end to the other support plate 10b by a fastener 75x, and has a string threading portion 75y at the other end. On the other hand, the lower rear band 76 is rotatably fixed at one end to one lower leg arm 40a by a fastener 76x, and has a strap-through portion 76y at the other end. On the other hand, the lower rear band 77 is rotatably fixed at one end to the other lower leg arm 40b by a fastener 77x, and has a strap-through portion 77y at the other end.

[0026] The tightening mechanism 80 includes a wire 81 that is routed around the other end of one upper rear band 74, the other upper rear band 75, the other end of one lower rear band 76, and the other end of the other lower rear band 77, and a winding member 82 that winds up the wire 81. The wire 81 passes through the string-passing sections 74y, 75y, 76y, and 77y and is connected to the winding member 82. A wire can be used for the wire 81, and a non-stretchable material is suitable. By operating the winding member 82, the wire 81 can be wound onto the winding member 82 or pulled out from the winding member 82. As the tightening mechanism 80, BOA® manufactured by Bore Technologies, Inc. can be used.

[0027] By winding the wire 81 onto the winding member 82, the other end of one upper rear band 74, the other end of the other upper rear band 75, the other end of one lower rear band 76, and the other end of the other lower rear band 77 are pulled closer together. As the other end of the upper posterior band 74, the other end of the upper posterior band 75, the other end of the lower posterior band 76, and the other end of the lower posterior band 77 come into close proximity, the pressing force applied to the posterior part of the knee joint by the knee posterior pad 71 increases. The winding member 82 is attached to the knee posterior pad 71. By attaching the winding member 82 to the knee posterior pad 71 in this way, it is easier to bring the other end of one upper posterior band 74, the other upper posterior band 75, the other lower posterior band 76, and the other lower posterior band 77 closer together evenly.

[0028] Figures 10 and 11 are rear and side views of the device with the protective band attached. As shown in Figures 3 and 4, the protective band 73 extends from the lower part of the posterior knee pad 71. As shown in Figures 10 and 11, the protective band 73 extends forward from the posterior knee pad 71, is folded back at the lower leg arm 40 and extends backward, and is connected to the posterior knee pad 71 by hook-and-loop fasteners.

[0029] Figures 12 to 20 are photographs showing a genu reflex knee brace according to another embodiment of the present invention. In the following description, we will explain configurations that differ from those shown in Figures 1 to 11, and will omit explanations of configurations that are the same as those shown in Figures 1 to 11.

[0030] Figures 12 and 13 are frontal photographs of the same device. As shown in Figures 12 and 13, the knee band 70 according to this embodiment includes a posterior knee pad 71 that presses against the posterior part of the knee joint, an anterior upper knee band 72x extending from the upper part of the posterior knee pad 71, and an anterior lower knee band 72y extending from the lower part of the posterior knee pad 71. Thus, the knee band 70 according to this embodiment has an upper knee band 72x and a lower knee band 72y as the anterior knee band 72. The upper knee band 72x is used by positioning it above the anterior part of the knee joint, and the lower knee band 72y is used by positioning it below the anterior part of the knee joint. The anterior knee bands 72x, which extend from both sides of the upper part of the posterior knee pad 71, are connected by hook-and-loop fasteners at an upper position in front of the knee joint. The lower anterior bands 72y, which extend from both sides of the lower part of the posterior knee pad 71, are connected by hook-and-loop fasteners at a position below the anterior part of the knee joint. By positioning the upper anterior band 72x and the lower anterior band 72y in front of the knee joint in this manner, the effect of preventing the orthosis from slipping down can be enhanced.

[0031] Figures 14 to 16 are photographs of the same orthosis from different angles viewed from the front. As shown in Figures 14 and 16, the tightening mechanism 80 according to this embodiment has the winding member 82 attached to one of the lower rear bands 76. The winding member 82 can also be attached to one of the upper rear bands 74, the other upper rear band 75, the lower rear band 76, and the other lower rear band 77. In this way, by attaching the winding member 82 to one of the upper rear band 74, the other upper rear band 75, the one lower rear band 76, and the other lower rear band 77, the winding member 82 can be shifted away from the center position behind the knee joint, making it easier to operate the winding member 82.

[0032] Figure 17 is a conceptual diagram of the tightening mechanism. The tightening mechanism 80 includes a wire 81 that is routed around the other end of one upper rear band 74, the other upper rear band 75, the other end of one lower rear band 76, and the other end of one lower rear band 77, and a winding member 82 that winds up the wire 81. Since the winding member 82 is attached to one lower rear band 76, the wire 81 is connected to the other end of one lower rear band 76 by the winding member 82. The wire 81 passes through the string threading sections 74y, 75y, and 77y and is connected to the winding member 82. By operating the winding member 82, the wire 81 can be wound onto the winding member 82 or pulled out from the winding member 82. By winding the wire 81 onto the winding member 82, the other end of one upper rear band 74, the other end of the other upper rear band 75, the other end of one lower rear band 76, and the other end of the other lower rear band 77 are pulled closer together. As the other end of the upper posterior band 74, the other end of the upper posterior band 75, the other end of the lower posterior band 76, and the other end of the lower posterior band 77 come into close proximity, the pressing force applied to the posterior part of the knee joint by the knee posterior pad 71 increases.

[0033] Figures 18 to 20 are photographs of the same orthosis from different angles viewed from the side. [Industrial applicability]

[0034] According to the present invention, it is possible to provide a genu recurvatum knee brace that can adjust the extension limitation angle of the knee. [Explanation of Symbols]

[0035] 10, 10a, 10b support plate 20 Connecting members 21a One side connection part 21b Other connection part 30, 30a, 30b Thigh side arm 31a, 31b Upper end fixture 32a, 32b, 42a, 42b Square ring 40, 40a, 40b Lower leg side arm 41a, 41b Lower end fixture 51 Anterior thigh band 52 Posterior Thigh Band 61 Anterior lower leg band 62 Posterior lower leg band 70 Knee band 71. Rear knee pad 72 Anterior knee band 72x Anterior band above the knee 72y Knee-Front Band 73 Protective band 74 One-sided upper rear band 74x, 75x, 76x, 77x fixtures 74y, 75y, 76y, 77y Lace-up section 75 Rear band 76 One side lower rear band 77 Rear lower band 80 Tightening mechanism 81 Wire rod 82 Winding member

Claims

1. A pair of support plates positioned on each side of the knee joint, A connecting member positioned behind the knee joint and connecting a pair of support plates, Each of these support plates is rotatably mounted on the upper end side of the thigh arm, Each of these lower leg arms is rotatably provided on the lower end side of the support plate, Each of the aforementioned thigh arms is equipped with a front thigh band, A lower leg anterior band is positioned on each of the lower leg side arms, A knee band positioned at the knee joint, Equipped with, One end of the connecting member is connected to one of the support plates at the one connecting portion. The other end of the connecting member is connected to the other support plate by the other connecting portion. The anterior thigh is pressed against by the aforementioned anterior thigh band, The anterior part of the lower leg is pressed by the aforementioned anterior lower leg band, The knee band presses against the posterior part of the knee joint. This is a knee brace for suppressing hyperextension, The aforementioned knee band, A knee posterior pad that presses against the posterior part of the knee joint, One upper rear band, one end of which is fixed at a position above the aforementioned one connecting portion, A rearward upper band, one end of which is fixed at a position above the other connecting portion, A lower rear band, one end of which is fixed at a position below the aforementioned one connecting portion, The other lower rear band, one end of which is fixed at a position lower than the other connecting portion, It has, A tightening mechanism is provided that allows the pressing force applied to the rear of the knee joint by the knee posterior pad to be increased by pulling the other end of the one upper rear band, the other upper rear band, the other end of the one lower rear band, and the other lower rear band. A knee brace for hyperextension characterized by the following features.

2. The tightening mechanism includes a wire that is routed around the other end of the one upper rear band, the other end of the other upper rear band, the other end of the one lower rear band, and the other end of the other lower rear band, and a winding member that winds up the wire. By winding the wire with the winding member, the other end of the one upper rear band, the other end of the other upper rear band, the other end of the one lower rear band, and the other end of the other lower rear band come into close proximity. The proximity of the other end of the one upper rear band, the other end of the other upper rear band, the other end of the one lower rear band, and the other end of the other lower rear band increases the pressure exerted on the posterior part of the knee joint by the knee posterior pad. The genu recurvatum knee brace according to feature 1.

3. The winding member is attached to the knee posterior pad. The genu recurvatum knee brace according to feature 2.

4. The winding member is attached to one of the upper rear band, the other upper rear band, the lower rear band, and the other lower rear band. The genu recurvatum knee brace according to feature 2.

5. The knee band has a knee band extending from the knee pad to the front of the knee, The aforementioned anterior knee band is used by positioning it in front of the knee joint. The genu recurvatum knee brace according to feature 1.

6. The aforementioned knee anterior band includes an upper knee anterior band and a lower knee anterior band. The aforementioned anterior knee band is used by positioning it above the anterior part of the knee joint. The aforementioned anterior lower knee band is used by positioning it below the anterior part of the knee joint. The genu recurvatum knee brace according to feature 5.

Images