JP2012143311A - Knee supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knee supporter that prevents the knee joint from facing inward by inhibiting the knee join from turning, and prevents the tibia from being pulled out forward relative to the thighbone.SOLUTION: The knee supporter 1 includes a supporter body 11 provided with: an elastic inner fastening belt 12 wrapped around the knee to the rear side of the lower thigh from the lower outside of the patella 22 through the inside of the knee joint; and an elastic outer fastening belt 13 wrapped around the knee to the rear side of the lower thigh from the lower outside of the patella 22 through the outside of the knee joint. The inner fastening belt 12 is formed of a relatively high elastic material as compared to the outer fastening belt 13.

Description

  The present invention relates to a knee supporter for limiting “knee-in-to-out” (hereinafter referred to as “KITO”), which causes damage to the knee joint.

  A knee supporter is a type of surgical corset that is worn on the knee for various purposes. For example, Patent Document 1 discloses a stretchable upper belt that is worn on the thigh, a stretchable lower belt that is worn on the lower leg (calf), and the upper belt and the lower belt. A knee supporter including a stretchable central portion provided so as to cover either the front surface or the back surface is disclosed (Patent Document 1 [Claim 1]). This can effectively prevent the lateral displacement of the patella, and can evenly apply pressure to the knee regardless of the flexion angle of the knee joint. If an auxiliary belt is used, the patella and side It is said that the accessory ligament can be reinforced (Patent Document 1 [0080]).

JP 2002-065711 A

  In sports, the anterior cruciate ligament (ACL) and medial collateral ligament (MCL) of the knee joint are often damaged by contact play and the like, and the damage of the ligament has a high recurrence frequency, so there is a strong demand for protection by a knee supporter. In particular, since the cause of damage to the ligament is attributed to KITO, the knee supporter is required to have a function of preventing the KITO. Measures to prevent KITO are to prevent the knee joint from turning inward and to prevent the knee joint from facing inward and to prevent the tibia from being pulled forward relative to the femur. In this regard, the knee supporter disclosed in Patent Document 1 proposes an auxiliary belt, but the auxiliary belt is not different from conventional taping and is insufficient as a measure for preventing KITO. Therefore, in order to provide a knee supporter that can prevent the knee joint from turning inward and the knee joint to face inward and prevent the tibia from being pulled forward with respect to the femur.

  As a result of the study, we developed a knee supporter that has a support belt that is mounted from the lower thigh to the upper lower thigh with the knee joint in between, and a tightening belt that hangs around the knee joint. Stretchable inner fastening belt that hangs around the lower back of the thigh and the elastic outer fastening belt that hangs from the lower inside of the patella to the lower back of the thigh through the outside of the knee joint The inner fastening belt is configured to freely engage and disengage one of the hook-and-loop fasteners provided at the lower and upper ends and the other of the hook-and-loop fastener provided at the supporter main body, and the outer fastening belt is provided at the lower and upper ends. One of the provided surface fasteners and the other of the surface fasteners provided on the supporter body can be freely engaged and disengaged, and the inner fastening belt uses a relatively high stretch material compared to the outer fastening belt. It is a knee supporter to. It is more preferable that the inner fastening belt has a non-stretchable elastic plate in a portion corresponding to the inner side of the knee joint.

  Like the conventional knee supporter, the supporter body can be a complete cylinder made of a stretchable material, or it can be constructed of a stretchable material, and one or both of the front part of the lower thigh or the front part of the lower leg is sandwiched across the knee joint. The removable opening / closing part can be configured as a partially open cylinder. As the opening / closing portion, various conventionally known engagement / disengagement means can be used, but a pair of hook-and-loop fasteners are most simply used. The supporter body tightens a range in which the knee joint is sandwiched by the action of the stretchable material, and suppresses or prevents the lateral displacement of the knee joint. In addition, the supporter body is provided with a pressing pad in the area surrounding the kneecap to hold down the quadriceps muscle, or an elastic stay is built in from the lower thigh to the knee joint to suppress or prevent swinging of the knee joint relative to the femur. More preferred.

  In the knee supporter of the present invention, the inner fastening belt and the outer fastening belt are crossed below the patella and hung around the back of the lower thigh (may extend to the inside or outside of the lower thigh past the back of the lower thigh). Thus, the knee joint is restrained to prevent rotation. And, due to the difference in elasticity, the inner tightening belt stretched around and stretched around the knee compared to the force of trying to push the knee joint inward while trying to contract the outer tightening belt stretched around the knee. Since the force to push the joint outward increases, the knee joint is pushed outward. At this time, if the inner fastening belt has a non-stretchable elastic plate at a portion where the inner fastening belt hits the inner side of the knee joint, a force for pushing outward can be applied to the knee joint appropriately and reliably.

  The inner tightening belt and the outer tightening belt push the upper part of the tibia so as to pull up the crossed portion below the integrated patella, and suppress or prevent the tibia from being pulled forward. Here, when the inner fastening belt and the outer fastening belt are integrated at the crossing portion below the patella, the upper part of the tibia can be easily pushed. The portions of the inner fastening belt and the outer fastening belt that intersect with each other below the patella may be integrated so as to be detachable by a hook-and-loop fastener, or may be integrated so as not to be separated by sewing. Further, the flaps may be handled as an integrated part by pulling out the inner and outer tightening belts from the X-shaped flap facing the lower side of the patella.

  According to the present invention, as a measure for preventing KITO, it is possible to provide a knee supporter capable of preventing the knee joint from turning inward and preventing the tibia from being pulled forward with respect to the femur. Prevention of rotation of the knee joint is an effect obtained by tightening the inner fastening belt and the outer fastening belt around the knee joint. Also, due to the difference in elasticity between the inner tightening belt and the outer tightening belt, the force to push the knee joint to the outside is superior, and furthermore, the action of the elastic plate of the inner tightening belt allows the knee joint to be Can be better prevented.

  The forward pulling restriction of the tibia is an effect caused by pushing the upper part of the tibia at the crossing portion below the patella. Further, if the intersecting portions are integrated, it becomes easy to push in the upper part of the tibia. At this time, the inner fastening belt and the outer fastening belt are wound around the knee joint at an obliquely upward angle, and if the angle is aligned with the extending angle of the anterior cruciate ligament, This makes it easier to apply posterior pressure and pushes the upper part of the tibia more reliably.

  In addition, if a pressing pad is provided in the vicinity of the patella of the supporter main body, the pressing pad presses the knee joint by the inner and outer fastening belts that hang around the knee joint, and the rotation is restricted. The burden on the meniscus can be reduced. Further, if an elastic stay extending from the lower thigh to the knee joint is incorporated in the supporter body on both the inner and outer sides sandwiching the knee joint, and the knee joint is sandwiched, swinging of the knee joint relative to the femur can be suppressed or prevented. The function of the elastic stay is more effectively exhibited by the knee joint being restrained by the inner tightening belt and the outer tightening belt.

It is the perspective view which looked at the state equipped with an example of the knee supporter based on the present invention from the front. It is the perspective view which looked at the state equipped with an example of the knee supporter based on the present invention from the back. It is a front view showing the state which developed an example of a knee supporter based on the present invention.

  Hereinafter, the knee supporter 1 of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, for example, the knee supporter 1 of the present invention has an inner fastening belt 12 in which a portion intersecting below the patella 22 is integrated with a lower cylindrical body 114 of a cylindrical supporter body 11. The outer fastening belt 13 is sewn at the lower edge of the intersecting portion (see FIG. 3). As a result, the supporter body 11, the inner tightening belt 12 and the outer tightening belt 13 can be handled as an inseparable integral body, and when the knee supporter 1 is unmounted, the inner tightening belt 12 and the outer tightening belt. The possibility of losing 13 can be eliminated.

  The supporter body 11 is mounted from the lower thigh to the upper lower leg across the knee joint. The supporter body 11 of this example is a cylindrical shape in which an upper cylindrical female surface 113 having a female surface of a hook-and-loop fastener on the surface and a lower cylindrical main body 114 having air permeability are connected to each other vertically, and an upper cylindrical female Both the surface 113 and the lower cylindrical body 114 are made of a stretchable material. The upper tubular female surface 113 divides the front side of the lower thigh into the inside and outside with the knee joint interposed therebetween, and further divides one of the divided portions into upper and lower portions to constitute a pair of upper and lower opening / closing flaps 115, 115. The opening / closing flap 115 is provided with a flap male surface 116 on the inner surface, and is freely detachable from the other divided female surface.

  The supporter body 11 is inserted with the leg 2 from above with the opening / closing flap 115 opened (see FIG. 3), lifted by holding the upper cylindrical female surface 113, and the upper edge of the lower cylindrical body 114 serving as the lower end of the opening / closing part. When the arm reaches the lower part of the patella 22, it can be attached easily by engaging the flap male surface 116 of the lower opening / closing flap 115 and the flap male surface 116 of the upper opening / closing flap 115 in this order. it can. In addition, since both the upper cylindrical female surface 113 and the lower cylindrical main body 114 are made of a stretchable material, the range including the knee joint, the femur 21, the patella 22, the tibia 24, and the rib 25 are tightened. In addition, the lateral displacement of the knee joint is suppressed or prevented.

  The supporter body 11 of this example is provided with an arc-shaped pressing pad 117 on the inner surface of the upper cylindrical female surface 113 and the lower cylindrical main body 114 in a range surrounding the kneecap. As a result, the quadriceps muscles can be depressed while the supporter body 11 is mounted. In addition, with the knee joint inside and outside, a pair of elastic stays 111, 111 are arranged in pairs on the left and right from the lower thigh to the knee joint, and each elastic stay 111 is built in a bag-like stay covering female surface 112. Yes. In this way, the knee joint is sandwiched between the pair of left and right elastic stays 111, so that the swing of the knee joint relative to the femur 21 is suppressed or prevented.

  The inner tightening belt 12 has an inner lower end male surface 121 of the hook-and-loop fastener at the lower end, an inner upper end male surface 123 of the hook-and-loop fastener at the upper end, and the inner lower end male across the portion that intersects the outer tightening belt 13 below the patella 22. It is a belt made of a stretchable material provided with an inner base end male surface 122 of a hook-and-loop fastener at a point symmetric position with respect to the surface 121. The inner upper male surface 123 is engaged with and disengaged from the upper cylindrical female surface 113 surrounding the lower thigh, and the inner lower male surface 121 and the inner proximal male surface 122 are engaged and disengaged with the stay covering female surface 112 on the right side when viewed from the front. . The inner fastening belt 12 of this example incorporates an elastic plate 124 that is elastically deformed at the same position as the inner proximal male surface 122. The position of the elastic plate 124 is specified by where the inner base end male surface 122 is engaged with the stay covering female surface 112, and displacement is prevented.

  Similar to the inner fastening belt 12 described above, the outer fastening belt 13 intersects the outer fastening belt 13 at the lower end, the outer lower male surface 131 of the hook-and-loop fastener, the outer upper male surface 133 of the hook-and-loop fastener at the upper end, and the patella 22 below. This is a belt made of a stretchable material provided with an outer base end male surface 132 of a hook-and-loop fastener in a point-symmetrical position with the outer lower end male surface 131 across the portion. The outer upper end male surface 133 is engaged with and disengaged from the upper cylindrical female surface 113 surrounding the lower thigh, and the outer lower end male surface 131 and the inner proximal male surface 122 are engaged with and disengaged from the stay covering female surface 112 on the left side when viewed from the front. .

  The inner fastening belt 12 and the outer fastening belt 13 of the present example are formed by integrating a portion intersecting below the patella 22 with a flap made of one stretchable fabric. The flap projects the protruding piece provided with the inner lower end male surface 121 and the outer lower end male surface 131 on the lower left and right, and extends the inner fastening belt 12 from a point symmetrical with the protruding piece provided with the inner lower end male surface 121, Similarly, the outer fastening belt 13 is extended in an X shape in front view from a point symmetrical with the protruding piece provided with the outer lower end male surface 131. As a result, when the inner tightening belt 12 and the outer tightening belt 13 are hung around the knee joint, the flap is lifted and the upper part of the tibia is pushed in (see the black arrow in FIG. 1).

  The knee supporter 1 according to the present invention has a knee joint in which the outer tightening belt 13 stretched by stretching due to the difference in stretchability between the inner tightening belt 12 and the outer tightening belt 13 which are hung to the rear side of the lower thigh is to be contracted. Compared to the force that pushes inward (see the white arrow on the left in Fig. 1), the force that pushes the knee joint outward as the inner fastening belt 12 that stretches around and stretches (see figure) 1), the knee joint is pushed outward. The knee supporter 1 of the present example incorporates a non-stretchable elastic plate 124 in a portion where the inner fastening belt 12 hits the inner side of the knee joint, so that the force to push outward is appropriately applied to the knee joint. Can be added reliably.

  Further, the inner tightening belt 12 and the outer tightening belt 13 of this example are arranged around the knee joint so as to be aligned with the extending angle of the anterior cruciate ligament 26, and are directed to the lower part of the tibia 24. Combined with the letter-shaped flap, it is easy to apply the posterior pressure to the tibia 24 due to the contraction force of the inner fastening belt 12 and the outer fastening belt 13 so that the upper part of the tibia 24 can be pushed more reliably. As described above, the knee supporter 1 according to the present invention is a region in which the knee joint is sandwiched, the femur 21, the patella 22, the tibia 24, and the rib 25 are wrapped by the supporter body 11 and tightened, and further, the inner side is wound around the knee joint. The tightening belt 12 and the outer tightening belt 13 suppress or prevent the lateral displacement of the knee joint, prevent the knee joint from rotating and the knee joint to face inward, or to the front of the tibia with respect to the femur Prevent drawer.

1 Knee supporter
11 Supporter body
12 Inner clamping belt
13 Outer tightening belt 2 legs
21 Femur
22 Patella
24 tibia
25 ribs
26 Anterior cruciate ligament

Claims (3)

In the knee supporter equipped with a tightening belt that hangs around the knee joint on the supporter body that is worn from the lower thigh to the upper lower leg across the knee joint,
An elastic inner fastening belt that runs from the lower outside of the patella through the inside of the knee joint to the back of the lower thigh, and an elastic belt that runs from the lower inside of the patella through the outside of the knee joint to the back of the lower thigh An outer fastening belt is provided on the supporter body,
The inner fastening belt allows the hook and loop fastener provided at the lower and upper ends and the hook and loop fastener provided at the support body to be freely engaged and disengaged.
The outer tightening belt is detachable between one of the surface fasteners provided at the lower end and the upper end and the other of the surface fasteners provided at the supporter body,
A knee supporter characterized in that the inner fastening belt uses a relatively high stretch material compared to the outer fastening belt. The knee supporter according to claim 1, wherein the inner fastening belt has a non-stretchable elastic plate at a portion corresponding to the inner side of the knee joint. The knee supporter according to claim 1 or 2, wherein the inner tightening belt and the outer tightening belt are integrated at a portion intersecting below the patella.

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