JP6487136B2 - Knee-free prosthesis - Google Patents

Description

  The present invention relates to a knee-free prosthesis.

  For example, if there are ulcers or wounds in the foot due to trauma, diabetes, severe lower limb ischemia, peripheral arterial disease, etc., the foot can be decompressed to protect and prevent wounds, reduce pain, assist early treatment, etc. Unloading is essential.

  For the decompression and unloading of the foot, measures have been taken to prevent the load from being applied by lifting a part (called a wound part) such as an ulcer or a wound with a cast or shoes (for example, non-patented) Reference 1).

“Nursing Technology 2012 October Extra Issue”, published by Medical Friend, October 25, 2012, p. 34-35

  As described in Non-Patent Document 1, when the wound part is lifted by a cast or a shoe, the load on the wound part can be reduced during walking than when no measures are taken. However, it was not sufficient for protecting wounds, preventing wounds, reducing pain, assisting early treatment, and the like.

  The present invention has been completed based on the above circumstances, and even when there is a wound on the foot, it is sufficient for protecting the wound, preventing wounds, reducing pain, assisting early treatment, etc. The purpose of this study is to provide a knee-free prosthetic device that can perform pressure relief and load relief.

In order to solve the above-described problems, the present invention provides a fixed portion for fixing a leg in a state where the knee joint is bent so that the sole does not come into contact with the ground, and is attached to the fixed portion at only one position. A leg portion extending from the position of the thigh toward the ground, and a support portion that has a ground contact portion that contacts the ground and supports the body, and the fixing portion is disposed on the rear surface side of the thigh and protects the thigh A protection part, a lower leg protection part that is arranged on the front side of the knee and lower leg part to be connected to the upper leg protection part, and a plurality of fixing belts that fix the upper leg protection part and the lower leg protection part to a leg; have a, a protective pad for protecting arranged in popliteal fossa, the protective pad is a Hizamen Niho brace that is attached slidably with respect to the femoral protection unit.

  In the present invention, the knee-free prosthesis is fixed to the knee joint in a bent state so that the sole of the foot does not contact the ground. And a supporting part for supporting. Therefore, according to the present invention, since it is possible to stand with the knee joint bent so that the sole does not contact the ground, it is possible to walk without attaching the sole to the ground, and there is a wound on the foot. However, sufficient decompression and relief can be performed to protect the wound, prevent wounds, reduce pain, assist early treatment, etc., and perform rehabilitation.

In the case of including a protective part that covers the front surface of the thigh and the front side of the crus, the thigh arranged inside the protective part is easily slid downward. However, according to the present invention, the fixing portion includes a thigh protection portion that is disposed and protected on the rear surface side of the thigh and a crus protection portion that is disposed and protected on the front side of the knee and the crus. Therefore, it is possible to prevent the thigh from sliding downward.
Further, the popliteal fossa is protected by the protective pad surface, and the knee-free prosthesis can be fixed so as not to be displaced with respect to the leg.
In addition, since the protective pad can be slid relative to the thigh protective part, the wearing operation of the protective pad can be simplified.

  Furthermore, according to the present invention, since the thigh protection unit and the plurality of fixing belts for fixing the thigh protection unit to the leg are provided, the knee-free prosthetic device can be fixed to the leg without slipping.

You may provide the adjustment cylinder distribute | arranged so that a thigh may be wrapped inside the said thigh protection part.
With such a configuration, it is possible to adjust the thickness of the thigh simply by arranging the adjustment cylinder, so that size adjustment is easy.

The thigh protection part may be provided with a positioning part for positioning the fixing belt.
With such a configuration, since the fixing belt does not shift, the thigh protection part can be fixed so as not to shift with respect to the leg.

The protective pad may be provided with a slip prevention unit that prevents the fixing belt from slipping.
With such a configuration, the shift of the fixing belt is surely prevented by the protective pad.

A slit for preventing leg compression may be formed at the lower end of the adjustment cylinder.
The adjustment cylinder is used to adjust the thickness of the thigh, but if the leg is swollen, the adjustment cylinder may feel tight or the leg may be compressed. Therefore, with the above configuration, unnecessary compression of the legs can be prevented.

  According to the present invention, even when there is a wound part on the foot, the knee-free prosthesis can perform sufficient decompression and unloading for the purpose of protecting the wound part, preventing wounds, reducing pain, assisting early treatment, etc. Can be provided.

The perspective view which showed a mode that it mounted | wore with the knee-free prosthesis of Embodiment 1 and walked Front view of knee-free prosthesis A perspective view of a knee-free prosthetic device showing a state in which the protective pad is slid upward. A perspective view of a knee-free prosthetic device showing a state in which a protective pad is placed in the popliteal cavity and fixed with a fixing belt Perspective view of adjustment cylinder

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the knee-free prosthetic device 10 according to the first embodiment is attached to a fixed portion 11 that is fixed in a state where the knee joint is bent and the legs are L-shaped, and the lower portion of the fixed portion 11. A support portion 31 that has a grounding portion 33 that comes into contact with the ground and supports the body, an adjustment cylinder 40 disposed inside the thigh protection portion 12, and a protection pad 27 disposed on the popliteal 4 are provided.

(Fixing part 11)
As shown in FIG. 1 and FIG. 2, the fixing portion 11 is arranged on the rear surface side (back side) of the thigh 2 and protects it, and the front side (abdomen) of the knee 3 and the lower leg 5. A lower leg protection unit 22 arranged and protected on the side) and four (a plurality of) fixing belts 19 and 25 for fixing the thigh protection unit 12 and the lower leg protection unit 22 to the leg 1.

  The thigh protection part 12 has a U-shaped opening 12 </ b> A on the front side of the thigh 2, and protects the rear side of the thigh 2. The thigh protector 12 has a shock absorbing layer 13 made of a shock absorbing material that absorbs shock to the skin on the surface in contact with the skin, and a protective layer 14 made of a resin material harder than the inner side on the outer surface. Have

  Examples of the material of the shock absorbing layer 13 include foamed polyolefin resins such as foamed polyethylene and foamed polypropylene, foamed resins such as foamed polyurethane and foamed styrene, and the like. Examples of the material for the protective layer 14 include soft polyethylene.

A resin reinforcing layer 16 bonded to the shock absorbing layer 13 is disposed between the shock absorbing layer 13 and the protective layer 14 on the rear side of the thigh protecting portion 12 (of the thigh 2). In the region 17 where the reinforcing layer 16 is disposed, a protective pad 27 is held between the reinforcing layer 16 and the protective layer 14 so as to be slidable in the vertical direction.
The shock absorbing layer 13 and the protective layer 14 are joined to each other in the thigh protective portion 12 other than the region 17 where the reinforcing layer 16 is disposed.

  Positioning belts 18 are attached to the outer side surfaces of the pair of side surfaces of the thigh protection portion 12 so that the fixing belt 19 is inserted and positioned (an example of a positioning portion). Two fixing belts 19 are inserted into the positioning belt 18 for positioning.

  The fixing belt 19 that fixes the thigh protection part 12 is arranged so as to wrap around the thigh 2. A D can 20 is sewn to one end of the fixing belt 19, and two types of hook-and-loop fasteners (not shown) that can be engaged with each other are sewn to the other end of the fixing belt 19. ing. The two types of hook-and-loop fasteners are sewn on the surface of the fixing belt 19 that is not in contact with the skin, and the non-woven fabric made of nonwoven fabric that prevents the fixing belt 19 from shifting in the area where the hook-and-loop fastener is sewn. A pad 21 is attached.

  The two fixing belts 19 for fixing the thigh protection part 12 are inserted into the positioning belts 18 attached to the side surfaces of the thigh protection part 12 and inserted into the D can 20 on the front side of the thigh part 2. The two types of hook-and-loop fasteners are fixed to the thigh 2 by engaging them at desired positions (according to the size of the thigh 2).

  The crus protection part 22 has a shape in which a part on the knee side and the popliteal 4 side and the calf 7 side are opened (the opening part is 22A), and the side surface and front side of the crus part 5 (facing shin 6 side) Is supposed to protect.

  The lower leg protection part 22 is formed with a shock absorbing layer 23 made of a buffer absorbing material that absorbs an impact on the lower leg part 5 on the inner side surface, and is harder than the protective layer 14 of the thigh protection part 12 on the outer side face. A hard material layer 24 made of a material is formed.

  The lower end portion of the protective layer 14 of the thigh protective portion 12 is sandwiched between and joined to the upper end portion of the lower leg protective portion 22 between the hard material layer 24 and the shock absorbing layer 23.

  The total thickness dimension of the crus protection part 22 is set larger than that of the thigh protection part 12. In particular, the thickness dimension of the shock absorbing layer 23 of the lower leg protecting part 22 is set larger than that of the shock absorbing layer 13 of the thigh protecting part 12.

  A fixing belt 25 is attached to the portion of the lower leg protection unit 22 where the knee 3 is disposed and the portion where the calf 7 is disposed. In the crus protection part 22, one end of the fixing belt 25 is fixed to the crus protection part 22, and two kinds of hook-and-loop fasteners (not shown) that can be engaged with each other are sewn side by side. Yes. The two types of hook-and-loop fasteners are sewn on the surface of the fixing belt 25 that does not come into contact with the skin, and in the area where the hook-and-loop fastener is sewn, a non-woven fabric slip prevention that prevents the fixing belt 25 from shifting. A pad 21 is attached.

  The two fixing belts 25 for fixing the lower leg protection part 22 are inserted into a D can 26 attached to the lower leg protection part 22, and then two types of hook-and-loop fasteners are set at desired positions (to the size of the lower leg part 5). In addition, it is fixed to the knee 3 and the crus 5 by engaging.

  The protective pad 27 includes a main body portion 28 made of the same material as the resin material constituting the protective layer 14 of the thigh protective portion 12, and a shock absorbing material that is joined to the lower end portion of the main body portion 28 and arranged along the popliteal 4. And a pad portion 29. The main body portion 28 of the protection pad 27 has a shape that follows the shape of the thigh protection portion 12. As shown in FIGS. 3 and 4, the pad portion 29 of the protective pad 27 is arcuate along the popliteal 4 of the legs (legs with bent knee joints) fixed to the thigh protection portion 12 and the lower thigh protection portion 22. It has the shape of

  On the outer surface of the main body portion 28 of the protective pad 27, a displacement preventing portion 30 for preventing the displacement of the fixing belt 19 disposed below the two fixing belts 19 for fixing the thigh protection portion 12 is provided. . The slip prevention part 30 has a hook shape, and an end part arranged in the longitudinal direction of the fixed belt 19 is fitted therein.

(Supporting part 31)
The support part 31 is a part that is attached below the thigh protection part 12 (fixing part 11) and supports the body of a person wearing the knee-free prosthesis 10. The support portion 31 is attached to the thigh protection portion 12 and includes a leg portion 32 extending downward, and a foot-shaped grounding portion 33 attached to the lower end portion of the leg portion 32 and in contact with the ground. The leg portion 32 is made of a light alloy, and the grounding portion 33 is made of resin.

  In the present embodiment, the length dimension of the leg portion 32 and the angle of the ground contact portion 33 can be adjusted in consideration of the balance with the leg 1 ′ on the side where the knee-free prosthesis 10 is not worn.

(Adjustment tube 40)
The knee-free prosthetic device 10 according to the present embodiment includes an adjustment cylinder 40 that is disposed so as to wrap the thigh 2 inside the thigh protection part 12 and adjusts the thickness of the thigh 2. The adjustment cylinder 40 is used when the thigh protection part 12 cannot be fixed because the thigh 2 is too thin. The adjusting cylinder 40 is a material that absorbs impact and is made of a soft material.

The adjustment cylinder 40 has a portion 40A arranged on the front side (left side in FIG. 5) of the thigh 2 and is deformed according to the thickness of the thigh 2 of the user.
As for the length of the adjustment cylinder 40, the part arranged on the side surface side of the thigh 2 is long, and the part arranged on the rear surface side (right side in FIG. 5) of the thigh 2 is short.

  A slit 42 for preventing the leg 1 from being compressed is formed at the lower end of the adjustment cylinder 40. Two slits 42 are formed in a portion arranged on the rear surface side of the thigh 2.

(Installation method)
A method for mounting the knee-free prosthesis 10 according to this embodiment will be described.
An adjustment cylinder 40 is attached to the thigh 2 of the leg 1 to which the knee-free prosthesis 10 is attached, as necessary. The adjustment cylinder 40 is mounted so that the short portion is arranged on the rear side of the thigh 2. Since the front of the adjustment cylinder 40 is open, the adjustment cylinder 40 is arranged along the thigh 2.

  The four fixing belts 19 and 25 of the fixing portion 11 are left open, and the protective pad 27 is slid upward as shown in FIG. Then, the leg 1 with the adjustment cylinder 40 is inserted, and the lower leg part 5 is attached to the lower leg protection part 22. Then, the leg 1 is bent at the knee joint.

  Next, the protective pad 27 is moved downward, and the pad portion 29 is applied to the popliteal 4. Next, the thigh protection part 12 and the crus protection part 22 are fixed to the thigh 2 and the crus 5 by the fixing belts 19 and 25, respectively. Then, the lower end portion of the fixing belt 19 disposed on the lower side of the two fixing belts 19 for fixing the thigh protection portion 12 to the thigh portion 2 is locked by the displacement prevention portion 30 of the protection pad 27 and moves downward. Is regulated. Further, the movement of the four fixing belts 19 and 25 is restricted by the displacement prevention pad 21. When standing with the ground contact portion 33 of the support portion 31 on the ground, the leg 1 is fixed to the knee-loading prosthesis 10 with the knee joint bent so that the sole 8A does not contact the ground.

(Function and effect)
Hereinafter, the operation and effect of the present embodiment will be described.
The knee-free prosthetic device 10 of this embodiment is attached to the lower part of the fixing part 11 and the fixing part 11 that fix the leg 1 in a state where the knee joint is bent so that the sole 8A does not contact the ground, and is in contact with the ground. And a support portion 31 that supports the body. Therefore, according to the present embodiment, since the knee joint can be bent so that the sole 8A does not come into contact with the ground, the foot 8A can be walked without being attached to the ground. Even when there is a wound part, sufficient decompression and relief can be performed to protect the wound part, prevent wounds, reduce pain, assist early treatment, etc., and perform rehabilitation.

  Moreover, according to this embodiment, the fixing | fixed part 11 is distribute | arranged not to the front surface of the thigh part 2, but the thigh protection part 12 distribute | arranged and protects on the rear surface side, and the front side of the knee 3 and the leg part 5. The thigh protection part 22 that protects the thigh 2 can be prevented from slipping downward.

  Moreover, according to this embodiment, since it has the some fixing belts 19 and 25 which fix the thigh protection part 12 and the crus protection part 22 to the leg 1, it does not slip | deviate the knee-loading auxiliary device 10 to the leg 1. Can be fixed to.

  In addition, according to the present embodiment, the protective pad 27 is provided to protect the popliteal 4 and is protected by the surface of the protective pad 27.

  In particular, according to the present embodiment, the protective pad 27 is slidably attached to the thigh protector 12, so that the mounting operation of the protective pad 27 can be simplified.

  Moreover, according to this embodiment, since the adjustment cylinder 40 arranged so as to wrap the thigh 2 inside the thigh protection part 12 is provided, the thickness of the thigh 2 can be obtained only by arranging the adjustment cylinder 40. Therefore, the size can be easily adjusted.

  According to this embodiment, since the positioning belt 18 for positioning the fixing belts 19 and 25 is provided in the thigh protection part 12, the fixing belts 19 and 25 are not displaced, and the thigh protection part 12 is attached to the leg. It can be fixed so that it does not shift with respect to 1.

  Furthermore, according to the present embodiment, the protective pad 27 is provided with the displacement preventing portion 30 that prevents the stationary belt 19 from being displaced. Therefore, the protective pad 27 reliably prevents the stationary belt 19 from being displaced. .

  In addition, according to the present embodiment, since the slit 42 for preventing the leg 1 from being compressed is formed at the lower end portion of the adjustment cylinder 40, the leg 1 is unnecessarily compressed due to swelling or the like. Can be prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the protection pad 27 is provided, but the protection pad 27 may not be provided.
(2) In the above-described embodiment, the protection pad 27 attached to the thigh protection unit 12 so as to be slidable is shown, but the protection pad may be configured to be fixed to the thigh protection unit. It may be attached to the thigh protection part so that it can be lifted up.
(3) In the above embodiment, the protective pad 27 provided with the shift prevention unit 30 for preventing the shift of the fixed belt 19 is shown, but a protective pad provided with no shift prevention unit may be used.
(4) Although the configuration including the adjustment cylinder 40 for adjusting the thickness of the thigh 2 has been described in the above embodiment, a configuration not including the adjustment cylinder may be used. Further, the adjustment cylinder may be configured such that the outer side surface thereof can be fixed to the inner side surface of the thigh protection part 12 by a hook-and-loop fastener or the like.
(5) In the above embodiment, the thigh protection unit 12 including the positioning belt 18 for positioning the fixing belt 19 is shown. However, the thigh protection unit without the positioning unit for positioning the fixing belt may be used.
(6) Although the adjustment cylinder 40 in which the slit 42 for preventing the compression of the leg 1 is formed in the above embodiment, an adjustment cylinder without a slit may be used.
(7) In the above embodiment, the grounding portion 33 having the shape of the right foot is shown. However, the shape of the grounding portion is a shape of a left foot, a shoe, or a tip of a cane. May be.

DESCRIPTION OF SYMBOLS 1 ... Leg 2 ... Thigh 3 ... Knee 4 ... Poplite 5 ... Lower leg 8 ... Leg 8A ... Sole 10 ... Knee load-carrying equipment 11 ... Fixing part 12 ... Thigh protection part 12A ... Opening 18 ... Positioning belt (Positioning part)
DESCRIPTION OF SYMBOLS 19, 25 ... Fixed belt 20, 26 ... D can 21 ... Deviation prevention pad 22 ... Lower leg protection part 27 ... Protection pad 28 ... Main-body part 29 ... Pad part 30 ... Deviation prevention part
31 ... Supporting part 33 ... Grounding part 40 ... Adjusting cylinder 42 ... Slit

Claims (5)

A fixing part that fixes the leg in a state where the knee joint is bent so that the sole does not contact the ground, and a leg part that is attached to the fixing part at only one position and extends from the position of the knee toward the ground; And a support part that has a grounding part in contact with the ground and supports the body,
The fixing part is arranged on the rear side of the thigh and protects the thigh, the thigh protection part is connected to the thigh protection part and arranged on the front side of the knee and crus, and protects the thigh the protective portion and the lower leg protection unit have a, a plurality of fixing belt for fixing to the leg,
It is equipped with a protective pad that is placed on the popliteal surface to protect it,
Hizamen Niho brace the protective pad that is attached slidably with respect to the femoral protection unit. The knee-free prosthesis according to claim 1 , wherein the protective pad is provided with a slip prevention unit that prevents the fixing belt from slipping. The knee-free prosthesis according to claim 1 or 2 , further comprising an adjustment cylinder arranged to wrap the thigh inside the thigh protection part. The knee-free prosthesis according to claim 3 , wherein a slit for preventing leg compression is formed at a lower end portion of the adjustment cylinder. Hizamen Niho appliance according to any one of the femoral protective portion claims 1 to 4, the positioning portion for positioning said fixing belt is provided on the.

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