JP6643551B2 - Joint orthosis - Google Patents

Description

  The present invention relates to a joint orthosis for covering an elbow joint, a knee joint, and the like. In particular, the present invention relates to a joint orthosis having a desired fixing force and ensuring the ability to follow the body surface of a wearer.

  Currently, various joint orthoses have been developed for the purpose of preventing the occurrence of disease and assisting recovery after surgery. As this type of joint orthosis, a joint orthosis as disclosed in Patent Literature 1 and Patent Literature 2 is known. The joint orthosis disclosed in Patent Document 1 has a front part covering the front part of the knee, a rear part integrally connected to the front part, and a rear part covering the rear part of the knee, and a front end of the rear part. It is formed by projecting separately, has a velvet type fastener at the tip, a mounting portion which is joined and fastened to the end of the front portion at the side of the knee, and a tape-shaped body having elasticity. will each have a velvet-type fastener to the distal end, attached to a portion where the base is connected to the rear portion of the front portion, the overlap on the front portion, through the top or bottom of the front of the knee, joined to the rear portion And two ribs that are provided near the end of the front part and the connecting part between the front part and the rear part, and are provided on the side of the knee. projecting from the back surface, in contact with the periphery of the patella Re is made of a lid bone pads portion serving as a stop.

  On the other hand, the joint orthosis disclosed in Patent Literature 2 has a stretchable cloth piece for covering the outer surface of the articulated portion, which has a shape corresponding to the outer surface of the articulated portion in the extended state, and a shape corresponding to the inner surface of the articulated portion, in the bent state. Characterized in that it is formed of a jointed cylindrical body with a stretchable cloth part for covering the inner surface of a joint bending portion having the following characteristics.

Japanese Patent Application Laid-Open No. Hei 7-21544 JP-A-9-276326

In such a conventional joint orthosis, for example, as for the joint orthosis as disclosed in Patent Document 1, since the holding portion is provided, the fixing force along the circumferential direction of the joint orthosis is increased, The fixing force of the joint orthosis to the wearer can be secured.
However, in this joint orthosis, the fixation force is secured, for example, during the flexion movement of the joint, the followability of the joint orthosis to the body surface of the wearer at the time of extension movement is impaired, and the joint flexion movement and extension movement are repeated. There was a possibility that the mounting position of the joint orthosis would be displaced. As a result, there is a problem that the joint orthosis is not mounted at an appropriate position, and the effect of restoring the joint is impaired.

  On the other hand, for a joint brace as disclosed in Patent Document 2, for example, a member having a shape corresponding to the outer surface of the bent joint in the extended state and a member having a shape corresponding to the inner surface of the bent joint in the bent state In other words, the emphasis on the adaptability of the joint orthosis to the joint impairs the fixing force along the circumferential direction of the joint orthosis. For this reason, there was a possibility that an appropriate feeling of pressure could not be given to the joint, so that the joint could not be braked. As a result, there is a problem that the recovery effect of the joint is impaired.

  That is, in the conventional joint orthosis, it is difficult to provide a desired fixing force to the wearer and ensure the followability of the joint orthosis to the body surface of the wearer.

  The present invention has been made in view of the above problem, and has as its main object to provide a joint orthosis that ensures both securing of a fixing force and securing of followability to a body surface of a wearer.

  That is, the present invention includes a main body portion, and a belt portion to be connected to the main body portion, said body portion or body portion end at least one portion is connected to the belt portion, and circumference of the belt portion An inner belt portion having a distal end side end portion that is provided on the direction distal end side and is connected to the belt portion at least one location, and a connection ratio of the distal end side end portion to the belt portion is: 13.9 to 100% of the total length of the belt portion in a direction perpendicular to the circumferential direction, and a connection ratio of the main body side end to the main body portion or the belt portion is a direction perpendicular to the circumferential direction. And the elongation force of the belt portion in the direction perpendicular to the circumferential direction is 6.6 to 78.0 N.

In this joint orthosis, the extension force of the belt portion in the circumferential direction is 2.6 to 28.9 N, and the extension force of the inner belt portion in the circumferential direction is 4.1 to 57.9 N. Is also good.
In the joint orthosis, the inner belt portion has the distal end side end portion connected to the belt portion at two places of a first distal end side connection portion and a second distal end side connection portion. The main body side end portion is connected to the main body portion or the belt portion at two places of a first main body side connection portion and a second main body side connection portion, and the first front end portion side connection is performed. A first cutout portion provided between the first body portion and the second tip portion side connection portion and not connected to the main body portion or the belt portion; the first body portion side connection portion and the second body portion side A second notch provided between the connecting portions and not connected to the belt portion.
Further, in the joint brace, the inner belt portion may be configured to a three-layered laminate urethane.

In the joint orthosis, the extension force of the main body in the circumferential direction is 10.2 to 35.8 N, and the extension force of the main body in a direction perpendicular to the circumferential direction is 19.8 to 82.N. 7N.
Further, in the joint brace, the body portion may be provided with a shrink auxiliary section.
In the joint orthosis, the main body may be formed of double Russell cloth.
Further, in the joint orthosis, the belt portion and the inner belt portion may be provided as a pair, respectively, and the pair of belt portions may be provided so as to sandwich the main body portion in a circumferential direction. In this joint orthosis, at least one belt portion of the pair of belt portions may be configured of three-layer laminated urethane.
In the joint orthosis, the joint orthosis may be a knee joint orthosis or an elbow joint orthosis.

  ADVANTAGE OF THE INVENTION According to the joint orthosis of this invention, since securing of fixation force and ensuring of followability with respect to the body surface of a wearer are compatible, it can be fixed without giving excessive pressure feeling and pain at the time of wearing, and further, bending of the joint. Displacement of the mounting position during exercise or extension movement can be prevented. As a result, the recovery of the joint disease can be promoted.

It is a perspective view showing the wearing state of the joint orthosis concerning a first embodiment to which the present invention can be applied. It is a front view which shows the surface facing the wearer concerning the joint orthosis of FIG. FIG. 2 is a partially enlarged view of a joint portion of an inner belt portion provided in the joint orthosis of FIG. 1. It is a front view which shows the outer surface of the joint orthosis of FIG. It is a front view of the joint orthosis which concerns on 2nd embodiment which can apply this invention. It is a front view of a joint orthosis according to the third embodiment to which the present invention can be applied.

  Hereinafter, embodiments to which the present invention can be applied will be described with reference to the drawings. The embodiment described below is an example of a typical embodiment of the present invention, and the scope of the present invention is not construed as being narrow.

<1. Joint orthosis according to first embodiment>
With reference to Figures 1-4, illustrating the joint orthosis according to a first embodiment to which the present invention is applicable. The joint orthosis 101 is a brace for covering the knee joint of the wearer, the main body portion 1 for covering the knee after the wearer, Kai wound before knee from the knee portion after the wearer through the side portions And a pair of inner belt portions 3 provided on the inner surface of the joint orthosis 101. Hereinafter, each part will be described in detail.

In FIG. 1-4, so that it can and the body portion 1 easily determine the boundary between each belt section 2, but represent the boundary surface by a solid line, the main body 1 and a pair of The belt 2 may be integrally formed to form a uniform main body.
FIG. 1 shows a state in which the joint orthosis 101 according to the first embodiment is worn on the left leg of the wearer. However, the joint orthosis to which the present invention can be applied is applied to either the left or right leg of the wearer. Can also be fitted.

<2. Main unit>
At the time of wearing, the main body 1 is arranged so as to cover the rear knee of the wearer. The main body 1 is formed in a substantially rectangular shape, and has a length in the direction perpendicular to the circumferential direction (length in the direction of the arrow X shown in FIG. 2) of 100 to 350 mm, and preferably 160 to 250 mm. On the other hand, the length of the main body 1 in the circumferential direction (the length in the direction of the arrow Y shown in FIG. 2) is 60 to 250 mm, preferably 122 to 167 mm. In general, the size of the knee joint, particularly the length of the knee joint in the circumferential direction, differs depending on individual differences. For this reason, the length in the circumferential direction and the length in the direction perpendicular to the circumferential direction of each part in the joint orthosis according to the present invention can be adjusted to correspond to the size of the knee joint of the wearer.
The main body 1 is made of a stretchable material that is usually used for molding a joint orthosis, and is formed as a knitted fabric obtained by knitting a thread material, for example. For this reason, the main body 1 is configured to expand and contract in the circumferential direction of the wearer's knee and in a direction perpendicular to the circumferential direction.

In the main body 1, the extension force in the circumferential direction is 10.2 to 35.8 N, and preferably 16.4 to 25.6 N. On the other hand, in the main body 1, the extension force in a direction perpendicular to the circumferential direction is 19.8 to 82.7N, and preferably 40.3 to 55.2N.
By setting the extension force in the circumferential direction of the main body 1 and the extension force in the direction perpendicular to the circumferential direction in the above ranges, it is possible to expand and contract according to the state of expansion and contraction of the skin of the wearer. That is, the ability to follow the body surface of the wearer is ensured.

Wherein a circumferential radial extension forces, when the tensile elongation in the initial state of the main body portion 1 and 0%, the body portion 1 pull bottom inner peripheral diameter direction, when the tensile elongation becomes 20% It refers to the stress acting on the main body 1.
On the other hand, the elongation force in the direction perpendicular to the circumferential direction means that, when the tensile elongation in the initial state of the main body 1 is set to 0%, the main body 1 is pulled in a direction perpendicular to the circumferential direction. It refers to the stress acting on the main body 1 when the elongation reaches 50%.
Note that the “tensile elongation” refers to an elongation ratio of a length of the main body 1 in the circumferential direction or a length in a direction perpendicular to the circumferential direction.

Here, a method of measuring the extension force in the circumferential direction and the extension force in the direction perpendicular to the circumferential direction will be described.
That is, the measurement of each extension force, constant extension rate type tensile tester (manufactured by Shimadzu Corporation "Autograph (trademark)" AG-20KNI, 1kN load cell) can be used.
The main body 1 is cut into a predetermined length to prepare a test piece, and the test piece is attached to the constant-speed extension type tensile tester. At this time, the grip length is 25 mm, and the grip interval is 100 mm. Then, the test piece is pulled at a speed of a gripping interval of 100 mm per minute, and each elongation force is measured. Then, it is possible to calculate the elongation force per unit length by dividing by the length grasp the measured elongation force.
In addition, the said measuring method is an example, The measuring method of each elongation force is not specifically limited, It can measure by a well-known method.

  As the yarn material constituting the main body portion 1 is not particularly limited as long as each stretching force is set within the range, good natural fibers, any of chemical fibers, such as polyamide fibers, polyester Fiber, acrylic fiber, cellulosic fiber (cotton, rayon, polynosic, lyocell, etc.), polyurethane fiber, polyolefin fiber (polyethylene, polypropylene, etc.), acetate fiber, polyvinylidene chloride fiber, polyvinyl chloride fiber And yarn (wool, animal hair, etc.) alone, or a mixture of these fibers. As the type of the yarn, a monofilament, a multifilament, a twisted yarn, a covered yarn, a core yarn, or the like can be used.

  Various knitting structures such as warp knitting or weft knitting can be used as the knitting of the main body portion 1. For example, double rassel cloth, flat knitting cloth, rubber knitting (rib knitting) cloth, pearl knitting cloth, tack knitting cloth, Circular knitted fabric, flat knitted fabric, tricot fabric, Russell fabric, pile knitted fabric, spun knitted fabric, and the like can be used. Among these, fabrics that can make each stretching force fall within the above range, and that can secure the ventilation and improve the feeling of wearing are preferable, and a double Russell fabric is preferable. Here, the double Russell fabric is made by joining loops called loops while making a stitch from one thread, and the elasticity of the loop can contribute to the stretching force, and air can be transmitted from the loop. I can do it. For this reason, the air permeability can be secured by using the double Russell cloth. In addition, the extensibility and elasticity can be improved by inserting elastic yarns such as covered yarns or rubber yarns of polyurethane fibers into the yarns constituting these knitting structures, or by adjusting the number of inserted elastic yarns. It is possible to adjust. It can be suitably knitted by a circular knitting machine or a sock knitting machine as a tubular rubber knit (rib knit) in which an elastic yarn such as a polyurethane yarn or a rubber yarn is inserted into a ground yarn such as a polyamide yarn.

The main unit 1 as described above may include a contraction assisting unit 11 as necessary. The contraction assisting portion 11 is formed at the center of the main body 1 in a direction perpendicular to the circumferential direction of the main body 1. In the joint orthosis 101 according to the first embodiment, the contraction assisting section 11 is completed by sewing a thread material to the main body 1.
As a result, when the main body 1 expands and contracts, stress concentrates on the contraction assisting section 11, and the entire main body 1 contracts toward the contraction assisting section 11.
The shrinkage assisting portion 11 only needs to be able to promote the shrinkage of the entire main body 1. For example, the entire main body 1 is directed in a direction perpendicular to the circumferential direction and toward the center of the main body 1. A belt member with a fold along the circumferential direction may be separately provided so that the belt member can be contracted.

<3. Belt part>
Next, the belt unit 2 included in the joint orthosis 101 according to the first embodiment will be described. The joint orthosis 101 according to the first embodiment includes a pair of belt portions 2 provided adjacent to the main body portion 1, and the main body portion 1 is sandwiched between the pair of belt portions 2 in a circumferential direction of the joint orthosis 101. ing. In the following description, for convenience, the belt portion 2 which is illustrated in the left side is referred to as "the first belt part 21 ', the belt portion 2 which is illustrated in the right side is referred to as" the second belt portion 22 ".
In the joint orthosis 101 according to the first embodiment, each belt portion 2 is connected to the main body 1 via a connecting portion 4. Each connecting part 4 forms a part of the main body part 1, and a stay is built therein. This stay contributes to the control of the torsion of the knee joint and the control of the displacement inward and outward of the knee joint.
In the joint orthosis according to the present invention, the configuration of the connecting portion 4 is not essential, and each belt portion 2 may be directly connected to the main body.

The first belt portion 21 includes a pair of band portions 23 and 24 protruding from the main body portion 1 in the circumferential direction of the joint orthosis 101 and the pair of band portions 23 and 24 in a direction perpendicular to the circumferential direction. And a connection base 25 to be connected. The pair of band portions 23 and 24 are provided in parallel in a direction perpendicular to the circumferential direction, and a cutout portion 26 is formed between the band portion 23 and the band portion 24. That is, the first belt portion 21 has a Futamata shape as a whole. In a state where the joint brace 101 according to the first embodiment is mounted, the upper edge around the patella P of the band portion 23 is wearer, arranged so that the band portion 24 covers the lower edge periphery of the patella P of the wearer (See FIG. 1).
The length of each band portion 23, 24 in the circumferential direction (the direction of the arrow Y in FIG. 2) is 50 to 270 mm, and preferably 109 to 174 mm. Further, the length of each of the bands 23 and 24 in the direction perpendicular to the circumferential direction (the direction of the arrow X in FIG. 2) is 25 mm to 175 mm, and preferably 60 to 125 mm.
On the other hand, the circumferential length of the connection base 25 is 20 to 120 mm, and preferably 44 to 79 mm.

The length of the circumference direction perpendicular to the direction of the upper end of the first circumference direction perpendicular to the direction of the length of the belt portion 21 (the band portion 23 to the circumferential radial direction perpendicular to the direction of the lower end of the band portion 24 ) Is from 100 to 350 mm, preferably from 160 to 250 mm.
That is, since the total length of the joint orthosis 101 according to the first embodiment in the direction perpendicular to the circumferential direction is equal to the total length in the direction perpendicular to the circumferential direction described for the first belt portion 21 or the main body 1,
It is 100 to 350 mm, preferably 160 to 250 mm.
Here, if the total length of the joint orthosis 101 in the direction perpendicular to the circumferential direction is larger than the above range, the contact area of the joint orthosis in contact with the wearer becomes large, and the mounting position of the joint orthosis is set with respect to the wearer. There is not much displacement, and there is no need to consider the above problem. On the other hand, if the total length of the joint orthosis 101 in a direction perpendicular to the circumferential direction is smaller than the above range, the function as the joint orthosis is not exhibited, which is not preferable.

Such first belt portion 21 is made of elastic material used for forming the normal joint orthosis, it is formed as for example knitted fabric knitted yarn material. For this reason, the first belt portion 21 is configured to extend and contract in the circumferential direction of the wearer's knee and in a direction perpendicular to the circumferential direction.
The circumferential extension force of the first belt portion 21 in the radial direction is 4.1 to 28.9 N, preferably 9.9 to 20.7 N. On the other hand, the extension force in a direction perpendicular to the circumferential direction is 13.0 to 78.0 N, and preferably 28.6 to 51.3 N.
By setting the stretching force in the circumferential direction in the first belt portion 21 and the stretching force in the direction perpendicular to the circumferential direction in the above-described ranges, the first belt portion 21 can expand and contract according to the state of expansion and contraction of the wearer's skin. . That is, the ability to follow the body surface of the wearer is ensured. Furthermore, since the extension force in the circumferential direction is set in the above range, a desired fixing force can be provided to the joint orthosis 101, so that the wearer's knee joint can be appropriately pressed. Note that the definition of each extension force in the first belt portion 21 is the same as the definition of each extension force in the main body 1.

The material constituting the first belt portion 21, it is possible to use natural fibers, woven fabric made of chemical fiber, knitted fabrics, non-woven, pile fabric, those formed by combination selection etc. alone or in any plastic foam . More specific materials include, for example, cotton, wool, rayon, acrylic, polyamide, polyester, polyurethane, vinylidene chloride, and other suitable fibers, weft knit fabric, warp knit jersey fabric, power net And three-dimensional knitted fabric of double Russell cloth.
Further, a material obtained by laminating such a material with a rubber foam (chloroprene rubber, natural rubber, butyl rubber, styrene / butadiene rubber, isoprene rubber, etc.), urethane rubber (compressed urethane), or the like can also be used. When laminating, a urethane-based or polyester-based adhesive can be used.

  In joint brace 101 according to the first embodiment, as the material of the first belt portion 21, and the urethane foam, and jersey fabric, it is preferable to use a three-layer laminate urethane obtained by laminating the French pile, the. By using the three-layer laminate urethane, the stretching force in the circumferential direction and the stretching force in the direction perpendicular to the circumferential direction can be set in the above ranges. In addition, since the three-layer laminate urethane is a fabric in which openings are regularly arranged in the circumferential direction and in a direction perpendicular to the circumferential direction, it is possible to secure air permeability and reduce discomfort of a wearer. be able to. Further, the outer surface of the first belt portion 21 can form a hook-and-loop fastener by the thread material being raised in a loop, and the second belt portion 22 can be engaged.

  The second belt portion 22 includes a pair of band portions 27 and 28 protruding from the main body portion 1 in the radial direction of the joint orthosis 101 and a pair of the band portions 27 and 28 in a direction perpendicular to the circumferential direction. And a connection base 25 that is connected to. Further, similarly to the first belt portion 21, a notch portion 26 is provided, and the connection base portion 25 is provided adjacent to the notch portion 26 in the circumferential direction. In a state where the joint brace 101 according to the first embodiment is mounted, the upper edge around the patella P of the band portion 27 is wearer, arranged so that the band portion 28 covers the lower edge periphery of the patella P of the wearer (See FIG. 1).

The structure and the material of the band portions 27 and 28 of the second belt portion 22 are the same as those of the first belt except that a hook-and-loop fastener 29 described later is provided and the yarn material on the outer surface is not formed in a loop shape. It is the same as the band parts 23 and 24 of the belt part 21. For this reason, the description of the structures and materials of these band portions 27 and 28 is omitted in this specification. However, in the band portions 27 and 28 of the second belt portion 22, it is not necessary to form the thread material on the outer surface into a loop shape. It is preferable to use Russell dough.
Since the material of each of the band portions 27 and 28 is different from that of the band portions 23 and 24 of the first belt portion 21, the stretching force in the circumferential direction and the stretching force in the direction perpendicular to the circumferential direction are caused by this. Are different from those of the first belt portion 21.
That is, the extension force of the second belt portion 22 in the circumferential direction is 2.6 to 17.9 N, and preferably 6.1 to 12.8 N. On the other hand, the extension force in a direction perpendicular to the circumferential direction is 6.6 to 39.7 N, and preferably 14.6 to 26.1 N.
Here, if the stretching force in the direction perpendicular to the circumferential direction of the belt portion 2 is less than 6.6 N, the belt portion 2 itself is easily stretched, and when the joint is bent, the body of the wearer is bent. Although it is easy to follow the surface, when the joint is extended, the belt portion 2 is not easily contracted, and the followability during the extension movement is not secured, which is not preferable. On the other hand, when the stretching force of the circumference direction perpendicular to the direction is greater than 78.0N, the elastic belt part 2 itself is impaired, preferably it is not possible to follow in response to extension movements and bending movement of the joint Absent.

A hook-and-loop hook 29 made of a thread material is provided on the inner surface of each of the band portions 27 and 28 facing the body surface of the wearer. The fastener 29 is provided on the free end side of the band portion 27 (circumferential radially distal side). Since the hook-and-loop fastener 29 is provided, the band portion 27 of the second belt portion 22 corresponds to the band portion 23 of the first belt portion 21, and the band portion 28 of the second belt portion 22 corresponds to the band portion of the first belt portion 21. It is adapted to be engaged with the part 24. Specifically, as shown in FIG. 1, so that the inner surface of the band portions 27 and 28 of the second belt portion 22 is engaged with the outer surface of the band portion 23, 24 of the first belt portion 21 ing.
As a result, when the joint orthosis 101 according to the first embodiment is worn, the notch 26 of the first belt portion 21 and the notch 26 of the second belt portion 22 cover the entire edge of the patella P of the wearer. so that the opening is formed to cover.

  Here, the opening width of the opening in the circumferential direction is preferably set to 40 to 100 mm. Since the opening width in the circumferential direction of the opening is set in the above range, the opening serves as a mark at the time of mounting, and the mounting operation can be simplified. Moreover, not inhibit extension movements and flexion of the knee joint, and can provide an appropriate tightness patella around the wearer.

  In the joint orthosis 101 according to the first embodiment shown in FIGS. 1 to 4, the hook-and-loop fastener 29 is provided on the second belt portion 22, and the outer surface of the first belt portion 21 is formed by raising the thread material into a loop. Although the structure is such that the first belt portion 21 and the second belt portion 22 are engaged with each other, the structure is not limited to this. The outer surface may have a configuration in which the thread material is raised in a loop shape. Further, the structure for engaging the first belt portion 21 and the second belt portion 22 does not need to be a hook-and-loop fastener, and a known engaging structure can be adopted. For example, a buckle or a snap button may be used. .

<4. Inner belt part>
Next, the inner belt portion 3 provided in the joint orthosis 101 according to the first embodiment will be described.
The inner belt portion 3 is provided on an inner side surface of the joint orthosis 101 facing the body surface of the wearer, and mainly contributes to securing a fixing force of the joint orthosis 101.
In the joint orthosis 101 according to the first embodiment, two inner belt portions 3 are provided in total, and the inner belt portion 3 is connected to the first inner belt portion 31 connected to the first belt portion 21 and the second inner belt portion 22 is connected to the second belt portion 22. having a second inner belt portion 32 being, a. The first inner belt portion 31 and the second inner belt portion 32 have the same configuration. Therefore, only the configuration of the first inner belt portion 31 will be described below, and the same reference numerals will be given to the second inner belt portion 32, and the description thereof will be omitted.

The first inner belt portion 31 has a constant width in a direction perpendicular to the circumferential direction, and has a first band portion 33 formed along the circumferential direction of the joint orthosis 101, and also has a width perpendicular to the circumferential direction. The width of the first band portion 33 is set to be constant, and the second band portion 34 arranged in parallel with the first band portion 33 is bridged between the first band portion 33 and the second band portion 34, and has a circumferential direction. A third band portion 35 provided along a vertical direction. The first band portion 33, the second band portion 34, and the third band portion 35 may be connected to each other to form the first inner belt portion 31, but the first inner belt portion may be cut out from one material. 31 may be created.
The first band portion 33 has one end in the circumferential direction connected to the connecting portion 4 which is a part of the main body 1, and the other end in the circumferential direction connected to the band portion 23 of the first belt portion 21. You. The second band portion 34 has one end in the circumferential direction connected to the connecting portion 4, and the other end in the circumferential direction connected to the band portion 24 of the first belt portion 21.
On the other hand, the upper and lower ends of the first band portion 33 in a direction perpendicular to the circumferential direction are not connected to the main body portion 1 or the first belt portion 21. Further, in the second band portion 34 is configured so as not to be connected to the circumferential radial direction perpendicular to the direction of the upper and lower ends the main body 1 or the first belt portion 21. By not connecting the upper and lower ends of the bands 33, 34 in a direction perpendicular to the circumferential direction to the main body 1 or the belts 21, 22, the inner belts 3 can move in the direction perpendicular to the circumferential direction of the joint orthosis. Does not generate stretching force. For this reason, it is possible to prevent the extension force in the direction perpendicular to the circumferential direction from being affected, and to be unable to expand and contract in accordance with the state of expansion and contraction of the skin of the wearer, and to reduce the followability to the body surface of the wearer.

The circumferential length of the first band portion 33 and the second band portion 34 is 25 to 180 mm, and preferably 54 to 119 mm. The length in the circumferential direction of the third band portion 35 is 10 to 60 mm, preferably 25 to 45 mm.
On the other hand, the length of the first band portion 33 and the second band portion 34 in a direction perpendicular to the circumferential direction is 12.5 to 175 mm, and preferably 25 to 45 mm.

As described above, the circumferential length of the third band portion 35 is formed shorter than the circumferential length of the first band portion 33 and the second band portion 34.
For this reason, the first inner belt portion 31 has a shape including a first notch portion 36 and a second notch portion 37 between the first band portion 33 and the second band portion 34. The first notch 36 is cut out in a substantially semicircular shape so as not to be connected to the connecting portion 4 forming a part of the main body 1. On the other hand, the second cutout portion 37 is also cut out in a substantially semicircular shape like the first cutout portion 36 so as not to be connected to the first belt portion 21. The notch shape of the first notch portion 36 and the second notch portion 37 is not limited to a semicircular shape, and the first notch portion 36 and the second notch portion 37 may be connected to the connecting portion 4 or the first belt portion. Any configuration may be used as long as it is not connected to 21, for example, it may be cut out in a substantially rectangular shape.

The first band portion 33 includes a first body portion side connection portion 33a coupled to the connection portion 4, while the second band portion 34 includes a second body portion coupled to the connection portion 4. The first inner belt portion 31 includes a main body side end portion 38 including the first main body side connection portion 33a, the second main body side connection portion 34a, and the first notch portion 36. It has.
On the other hand, the first band portion 33 includes a first distal end side connection portion 33b coupled to the distal end side in the circumferential direction of the band portion 23, while the second band portion 34 includes a peripheral portion of the band portion 23. The first inner belt portion 31 includes a first distal end side connecting portion 33b, a second distal end side connecting portion 34b, and the second notch. A tip side end portion 39 including a portion 37 is provided.

That is, in the joint orthosis 101 according to the first embodiment, the main body side end 38 of the first inner belt part 31 is connected to the main body 1 at two places, and the front end side end 39 is connected to the belt. It is connected to the part 2 at two places.
Here, the “tip portions” of the first band portion 33 and the second band portion 34 in the present invention refer to a region from the center position of the belt portion 2 to the free end (end in the circumferential direction) in the circumferential direction. . When the first distal end side connecting portion 33b and the second distal end side connecting portion 34b are joined to the main body side from the center position of the belt portion 2 in the circumferential direction, as a result, the inner belt portion 3 The length in the circumferential direction becomes shorter. Therefore, it is impossible to obtain a desired fixing force is undesirable.

Next, the length of the first band portion 33 and the second band portion 34 in the direction perpendicular to the circumferential direction will be described in detail with reference to FIG.
27. The connection ratio of the main body side end to the main body part or the belt part is in the range of 13.9 to 100% of the total length of the main body part or the belt part in a direction perpendicular to the circumferential direction, preferably 27. It is set in the range of 8 to 50%.
Further, the connection ratio of the front end portion side end portion to the belt portion is in a range of 13.9 to 100% of a total length of the belt portion in a direction perpendicular to a circumferential direction, preferably, 27.8 to 50%. It is set in a range of.
Here, in the joint orthosis of the present invention, the connection ratio of the main body side end and the connection ratio of the distal end side end do not need to be set to the same value, but are set to different values. You may.
That is, the first band portion 33 and the second band portion 34 do not need to have a constant width in a direction perpendicular to the circumferential direction. It may be shaped so that the width in the direction perpendicular to the direction gradually increases or decreases.

  Explaining using the configuration of the joint orthosis 101 according to the first embodiment shown in FIG. 3, the length of the main body side end 38 in a direction perpendicular to the circumferential direction of the first main body side connection portion 33 a is described. The total length (connection ratio) of the length M and the length M of the second body portion side connection portion 34a in the direction perpendicular to the circumferential direction is the length of the first belt portion 21 in the direction perpendicular to the circumferential direction. The length L is set in a range of 13.9 to 100%, preferably in a range of 27.8 to 50%. Further, at the distal end side end 39, a length N in a direction perpendicular to the circumferential direction of the first distal end side connecting portion 33b and a direction perpendicular to the circumferential direction of the second distal end side connecting portion 34b. The total length (connection ratio) of the length N is in the range of 13.9 to 100% with respect to the length L in the direction perpendicular to the circumferential direction of the first belt portion 21, preferably 27. 0.8 to 50%.

In addition, in the joint orthosis 101 according to the first embodiment shown in FIG. 3, the main body side end 38 has a first notch 36 not connected to the main body 1, and the tip end side end 39 has a second cut-out portion 37 that is not connected to the belt portion 2.
For this reason, in the joint orthosis 101 according to the first embodiment shown in FIG. 3, the connection ratio of the main body side end portion 38 is not at least 100%, and the connection ratio of the distal end portion side end portion 39 is at least. Not 100%.

Such a first inner belt portion 31 is made of a stretchable material which is usually used for molding a joint orthosis, and is formed as a knitted fabric obtained by knitting a thread material, for example. For this reason, the first inner belt portion 31 is configured to extend and contract in the circumferential direction of the wearer's knee and in a direction perpendicular to the circumferential direction.
As the material constituting the first inner belt portion 31, as in the case of the belt portion 2, a woven fabric, a knitted fabric, a nonwoven fabric, a pile fabric, a plastic foam, or the like made of natural fibers and chemical fibers are formed alone or in any combination. Can be used. More specific materials include, for example, cotton, wool, rayon, acrylic, polyamide, polyester, polyurethane, vinylidene chloride, and other suitable fibers, weft knit fabric, warp knit jersey fabric, power net And three-dimensional knitted fabric of double Russell cloth.
Further, a material obtained by laminating such a material with a rubber foam (chloroprene rubber, natural rubber, butyl rubber, styrene / butadiene rubber, isoprene rubber, etc.), urethane rubber (compressed urethane), or the like can also be used. When laminating, a urethane-based or polyester-based adhesive can be used.

  In the joint orthosis 101 according to the first embodiment, as a material of the first inner belt portion 31, it is preferable to use a three-layer laminate urethane obtained by laminating urethane foam, jersey fabric, and French pile. By using the three-layer laminate urethane, the stretching force in the circumferential direction and the stretching force in the direction perpendicular to the circumferential direction can be set in the above ranges. In addition, since the three-layer laminate urethane is a fabric in which openings are regularly arranged in the circumferential direction and in a direction perpendicular to the circumferential direction, it is possible to secure air permeability and reduce discomfort of a wearer. be able to.

The extension force in the circumferential direction of the first inner belt portion 31 is 4.1 to 57.9 N, and preferably 8.3 to 14.9 N. On the other hand, the extension force in a direction perpendicular to the circumferential direction is 16.2 to 116.9N, and preferably 35.1 to 77.3N.
Since the extension force in the circumferential direction of the first inner belt portion 31 is set in the above range, a desired fixing force can be provided to the joint orthosis 101, so that the knee joint of the wearer is appropriately compressed. can do. The definition of each extension force in the first inner belt portion 31 is the same as the definition of each extension force in the main body 1.

In particular, the fixing force of the joint orthosis 101 is determined by a combined force of the circumferential extension force of the belt portion 2 and the circumferential extension force of the inner belt portion 3.
For this reason, in the joint orthosis according to the present invention, the sum of the circumferential extension force of the belt portion 2 and the circumferential extension force of the inner belt portion 3 is set to 6.7 to 86.8 N, which is preferable. Is set to 14.4-35.6N.

According to the joint orthosis 101 according to the first embodiment formed as described above, since the stretching force of the belt portion 2 in the direction perpendicular to the circumferential direction is set in a predetermined range, the skin of the wearer is Expands and contracts in accordance with the state of expansion and contraction of the wearer, and the followability of the wearer to the body surface is improved. In this way, even if the wearer performs the bending motion or the extension motion of the joint while wearing the joint orthosis 101, the motion of the joint can be followed. Further, in the inner belt portion 3, the connection ratio of the main body side end portion 38 to the main body portion 1 is set to a predetermined range, and the connection ratio of the front end portion side end portion 39 to the belt portion 2 is set to a predetermined range. Set to range. For this reason, the inner belt portion 3 has a circumferential extension force in the above range, and the extension force of the inner belt portion 3 is combined with the circumferential extension force of the belt portion 2. As a result, the fixing force of the joint orthosis 101 can be increased.
That is, according to the joint orthosis 101 according to the first embodiment, it is possible to prevent the displacement of the mounting position due to the bending movement or the extension movement of the joint by the wearer, and to moderate the braking and fixing of the movement of the joint of the wearer. Can be done. As a result, for example, when worn by a patient suffering from a joint disease, the joint disease can be promoted to recover. In addition, by wearing it, it is possible to prevent the occurrence of joint diseases.

Note that, in the joint orthosis 101 according to the first embodiment, the main body side end 38 of the inner belt portion 3 does not necessarily need to be coupled to the main body portion 1, and as long as it can achieve the securing of desired securing and desired trackability of fixing force, for example, first the main unit-side coupling portion 33a and the second main unit-side coupling portion 34a constituting the main body portion end 38 is the It may be configured to be coupled to the belt portion 2.
In the joint orthosis 101 according to the first embodiment, the main body side end 38 is connected to the main body 1 at two places, and the front end side end 39 is connected to the belt 2 at two places. Although connected, the main body side end 38 is connected to the main body 1 at at least one place, and the front end side end 39 is connected to the belt 2 at at least one place. Any configuration is acceptable.
Further, in the joint orthosis 101 according to the first embodiment, each inner belt portion 3 includes the first notch portion 36 and the second notch portion 37, but the main body side end portion 38 and the tip end side end portion. It is sufficient that the connection ratio of 39 can be set in the above-described range, and the first cutout portion 36 and the second cutout portion 37 may not be provided. Such structure, arrangement for forming each inner belt portion 3 itself in a substantially rectangular shape is conceivable.

<5. Joint orthosis according to second embodiment>
Next, a joint orthosis according to a second embodiment to which the present invention can be applied will be described with reference to FIG. The joint orthosis 201 according to the second embodiment differs from the joint orthosis 101 according to the first embodiment in the configuration of the inner belt portion. Other configurations are the same as those of the joint orthosis 101 according to the first embodiment. Therefore, the same components as those of the joint orthosis 101 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the joint orthosis 201 according to the second embodiment, each of the inner belt portions 3 does not include the third band portion 35, and each of the inner belt portions 3 includes the first band portion 33 provided along the circumferential direction. And a second band portion 34 provided in parallel with the first band portion 33 along the circumferential direction.
Also in the joint orthosis 201 according to the second embodiment configured as described above, the connection ratio of the main body side end portion 38 is equal to the length of the first belt portion 21 in the direction perpendicular to the circumferential direction. , 13.9 to 100%, and preferably 27.8 to 50%.
The coupling ratio of the tip end 39, to the circumference direction perpendicular to the direction of the length of the first belt portion 21, the range of 13.9 to 100%, preferably, 27. It is set in the range of 8 to 50%.
Further, also in the joint orthosis 201 according to the second embodiment, the extension force of each belt portion in the direction perpendicular to the circumferential direction is within the same range as that of each belt portion provided in the joint orthosis 101 according to the first embodiment. Is set.

Even joint brace 201 according to the second embodiment constructed, stretching force in the circumferential radial inner belt portion 3 relative to the stretching force of the circumference direction of the belt portion 2 is synthesized as described above . As a result, the fixing force of the joint orthosis 201 can be increased. As a result, the movement and movement of the joint of the wearer can be appropriately braked and fixed.
On the other hand, in the joint orthosis 201 according to the second embodiment, the extension force of the belt portion 2 in the direction perpendicular to the circumferential direction is set to a range similar to the range of the first embodiment. For this reason, it expands and contracts according to the state of expansion and contraction of the wearer's skin, and the followability to the body surface of the wearer is improved. Thus, it is possible to prevent the displacement of the mounting position due to the flexion movement or extension movements of the joint by the wearer.
That is, even with the joint orthosis 201 according to the second embodiment, for example, when a patient suffering from a joint disease wears it, it is possible to promote the recovery of the joint disease. In addition, by wearing it, it is possible to prevent the occurrence of joint diseases.

In the joint orthosis 201 according to the second embodiment, the first band portion 33 and the second band portion 34 are arranged parallel to each other along the circumferential direction. The present invention is not limited to this, and other configurations can be adopted as long as the securing of the fixing force and the securing of the followability can both be achieved.
Specifically, the first band portion 33 and the second band portion 34 do not need to be provided in parallel with each other. For example, while the first band portion 33 is provided along the circumferential direction, the second band portion 34 is provided. May be provided at a certain angle with respect to the circumferential direction. In such a case, for example, a configuration in which the second band portion 34 is provided so as to be inclined downward in FIG. 5 is considered.

Alternatively, each of the first band portion 33 and the second band portion 34 may be provided to be inclined at a predetermined angle with respect to the circumferential direction. In such a case, for example, a configuration is conceivable in which the first band portion 33 is provided so as to be inclined upward in FIG. 5 and the second band portion 34 is provided so as to be inclined downward in FIG. Alternatively, the first body portion-side connecting portion 33a and the second body portion-side connecting portion 34a are connected to one portion of the main body portion 1 or the belt portion 2 in a state where they overlap with each other, and the first band portion 33 and the second band portion A configuration in which the portions 34 are inclined in directions away from each other is also conceivable.
That is, in the joint orthosis 201 according to the second embodiment, the orientation of the first band portion 33 and the second band portion 34 may not be in the circumferential direction.

<6. Joint orthosis according to third embodiment>
Next, a joint orthosis according to a third embodiment to which the present invention can be applied will be described with reference to FIG. The joint orthosis 301 according to the third embodiment differs from the joint orthosis 101 according to the first embodiment in the configuration of the inner belt portion. Other configurations are the same as those of the joint orthosis 101 according to the first embodiment. Therefore, components common to the joint brace 101 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  In the joint orthosis 301 according to the third embodiment, each inner belt portion 3 does not include the second band portion 34 and the third band portion 35, and each inner belt portion 3 is provided along the circumferential direction. The first band 33 is provided. That is, in the joint orthosis 301 according to the third embodiment, the first main body side connecting portion 33a constituting the first band portion 33 corresponds to the main body side end portion 38 of the present invention, and the first distal end side connecting portion 33b corresponds to the distal end side end portion 39.

Also in the joint orthosis 301 according to the third embodiment configured as described above, the connection ratio of the main body side end portion 38 is equal to the length of the first belt portion 21 in the direction perpendicular to the circumferential direction. , 13.9 to 100%, and preferably 27.8 to 50%.
Further, the connection ratio of the distal end side end portion 39 is in the range of 13.9 to 100% with respect to the length of the first belt portion 21 in the direction perpendicular to the circumferential direction, preferably 27. It is set in the range of 8 to 50%.
Further, also in the joint orthosis 301 according to the third embodiment, the extension force in the direction perpendicular to the circumferential direction of each belt portion is in the same range as that of each belt portion provided in the joint orthosis 101 according to the first embodiment. Is set.

According to the joint orthosis 301 according to the third embodiment formed as described above, the extension force of the belt portion 2 in the direction perpendicular to the circumferential direction is set in the range. Therefore, even when the wearer wears the joint orthosis 301 and performs a bending motion or an extension motion of the joint, the motion of the joint can be followed. Further, in the inner belt portion 3, the connection ratio of the main body side end portion 38 to the main body portion 1 is set to a predetermined range, and the connection ratio of the front end portion side end portion 39 to the belt portion 2 is set to a predetermined range. Set to range. For this reason, the inner belt portion 3 has a circumferential extension force in the above range, and the extension force of the inner belt portion 3 is combined with the circumferential extension force of the belt portion 2. As a result, the fixing force of the joint orthosis 301 can be increased.
That is, even in the joint orthosis 301 according to the first embodiment, it is possible to prevent the displacement of the mounting position due to the bending motion or the extension motion of the joint by the wearer, and to brake and fix the movement of the joint of the wearer. it can be reasonably carried out. As a result, for example, when worn by a patient suffering from a joint disease, the joint disease can be promoted to recover. In addition, by wearing it, it is possible to prevent the occurrence of joint diseases.

  Here, the joint orthoses 101, 201, and 301 shown in FIGS. 1 to 6 are orthoses that cover the knee joints of the wearer. However, the present invention is not limited to the orthoses that cover the knee joints, but also includes other joints. The present invention can be applied to a device for covering, for example, a device for covering an elbow joint where extension and bending movements are frequently performed.

  Hereinafter, further detailed description of the joint orthosis according to the embodiment of the present invention with reference to Examples. The embodiment described below is an example of a typical embodiment of the joint orthosis according to the embodiment for carrying out the present invention, and the joint according to the embodiment for carrying out the present invention is thereby described. The range of the brace is not to be construed as narrow. Further, the following embodiments show examples in which the joint orthosis of the present invention is applied to an orthosis covering a knee joint.

The present inventors have proposed a joint brace (Example 1) according to the first embodiment shown in FIGS. 1 to 4, a joint brace (Example 2) according to the second embodiment shown in FIG. The joint orthosis according to the third embodiment (Example 3) and the joint orthosis according to Example 3, wherein the connection ratio between the main body side end and the distal end side end is 13.9% (Example 4). The joint brace (Example 5) in which the connection ratio between the main body side end and the distal end side end is 100%, the connection ratio in the main body side end is 38.9%, A joint orthosis (Example 6) having an end connection ratio of 27.8% was manufactured.
Further, as Comparative Example 1, a joint orthosis having no inner belt portion was manufactured, and as Comparative Example 2, a joint orthosis having a connection ratio of the main body side end portion and the distal end side end portion of 8.3% was manufactured.
Then, the extension force in the circumferential direction and the extension force in the direction perpendicular to the circumferential direction in each joint orthosis were measured. Here, stretching force in the circumferential radial direction as an indicator of tightness of the joint brace during mounting.
Furthermore, in order to confirm the followability of each joint orthosis, objective evaluation of wearing and subjective evaluation of wearing were performed.

<Example 1>
Example 1 corresponds to the joint orthosis according to the first embodiment shown in FIG. In the joint orthosis according to the first embodiment, the length of the main body in the circumferential direction is 134 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm.
The length of the first belt portion and the second belt portion in the circumferential direction is 122 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. In addition, the length of the connecting base constituting the first belt part in the circumferential direction is 53 mm.
Further, the length of the first band portion and the second band portion of the inner belt portion in the circumferential direction is 67 mm, and the length in the direction perpendicular to the circumferential direction is 35 mm. That is, the connection ratio of the body-side end and the connection ratio of the tip-side end according to the first embodiment are 38.9%.
The fabric of the main body uses double rassel fabric, the fabric of the first belt portion uses a three-layer lamirate urethane fabric, the fabric of the second belt portion uses a double raselle fabric, and the inner belt portion uses a three-layer lamirate urethane fabric. As a result of measuring each part provided with this cloth, the elongation force per unit length in the main body is 0.1 N per unit length in the circumferential direction and the unit length in the direction perpendicular to the circumferential direction. The extension force per unit is 0.3N, the extension force per unit length in the circumferential direction of the first belt unit is 0.1N, and the extension force per unit length in the direction perpendicular to the circumferential direction is 0. .3N. The extension force per unit length in the circumferential direction of the second belt portion is 0.2 N, and the extension force per unit length in the direction perpendicular to the circumferential direction is 0.6 N. The extension force per unit length in the radial direction is 0.2 N, and the extension force per unit length in the direction perpendicular to the circumferential direction is 0.6 N.

<Example 2>
Example 2 corresponds to the joint orthosis according to the second embodiment shown in FIG. That is, in the second embodiment, the inner belt portion does not include the third band portion.
On the other hand, the same thing as the joint orthosis according to Example 1 was used except that the length of the inner belt portion in the direction perpendicular to the circumferential direction of the first band portion and the second band portion was 80 mm. That is, the connection ratio of the main body side end and the connection ratio of the front end side end according to the second embodiment are 38.9%. The cloth used for each part is the same as the cloth used in Example 1. For this reason, the extension force per unit length in the circumferential direction of each part and the extension force per unit length in the direction perpendicular to the circumferential direction are the same as those of the first embodiment.

<Example 3>
Example 3 corresponds to the joint orthosis according to the second embodiment shown in FIG. That is, Example 3 is one which is not provided with the second band portion and the third band portion of the inner belt portion relative to Example 1.
On the other hand, the length of the first band portion of the main body portion, the first belt portion, the second belt portion, and the inner belt portion in the circumferential direction and the length in the direction perpendicular to the circumferential direction are the same as those of the first embodiment. is there.
As described above, since the second band portion is not provided, the connection ratio of the main body side end and the connection ratio of the front end side according to the third embodiment are 19.4%. The cloth used for each part is the same as the cloth used in Example 1. For this reason, the extension force per unit length in the circumferential direction of each part and the extension force per unit length in the direction perpendicular to the circumferential direction are the same as those of the first embodiment.

<Example 4>
Example 4 is a joint orthosis according to Example 3, except that the length of the first band portion forming the inner belt portion in the direction perpendicular to the circumferential direction is changed to 25 mm in the joint orthosis according to Example 3. And the dimensions of each part are the same.
That is, the connection ratio of the body-side end and the connection ratio of the tip-side end according to the fourth embodiment are 13.9%. The cloth used for each part is the same as the cloth used in Example 1. Therefore, stretching force of stretching force and bottom inner peripheral diameter direction per unit length in the direction perpendicular per unit length of the circumference direction of each part is equivalent to those of Example 1.

<Example 5>
As described above, the fifth embodiment is a joint orthosis in which the connection ratio between the main body side end and the front end side end is 100%.
That is, in the joint orthosis according to the fifth embodiment, the length of the main body in the circumferential direction is 134 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm.
On the other hand, the length in the circumferential direction of the first belt portion and the second belt portion is 122 mm, the length in the direction perpendicular to the circumferential direction is 70 mm, and the joint device and the respective belt portions according to the first embodiment. The dimensions are the same. However, in order to set the connection ratio of the main body side end portion and the front end side end portion to 100%, each belt portion does not include any first notch portion and second notch portion, and similarly to the main body portion. It is formed in a substantially rectangular shape.
Further, in the joint orthosis according to the fifth embodiment, in order to set the connection ratio between the main body side end portion and the distal end side end portion to 100%, each inner belt portion is formed in a substantially rectangular shape, and each inner belt portion is formed. The length of the portion in the circumferential direction is 80 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm. Also, the fabric is used at each site are used as the same as the fabric used in Example 1. For this reason, the extension force per unit length in the circumferential direction of each part and the extension force per unit length in the direction perpendicular to the circumferential direction are the same as those of the first embodiment.

<Example 6>
As described above, Embodiment 6 is a joint orthosis in which the connection ratio of the main body side end is 38.9% and the connection ratio of the distal end side end is 27.8%. That is, in the joint orthosis of the sixth embodiment, in the first body portion side connection portion and the second body portion side connection portion constituting the inner belt portion, the length in the direction perpendicular to the circumferential direction is 25 mm, in one distal end side connecting portion and the second tip portion side connecting portion, the length of the circumferential radial perpendicular direction is 35 mm.
Other dimensions of each part are the same as those of the joint orthosis according to the first embodiment. The cloth used for each part is the same as the cloth used in Example 1. For this reason, the extension force per unit length in the circumferential direction of each part and the extension force per unit length in the direction perpendicular to the circumferential direction are the same as those of the first embodiment.

<Comparative Example 1>
Comparative Example 1 is a joint orthosis having the same configuration as the joint orthosis according to Example 1 except that the joint orthosis does not include the inner belt portion.
Since no inner belt portion is provided, the connection ratio between the main body side end and the front end side end is 0%. The cloth used for each part is the same as the cloth used in Example 1. Therefore, stretching force of stretching force and bottom inner peripheral diameter direction per unit length in the direction perpendicular per unit length of the circumference direction of each part is equivalent to those of Example 1.

<Comparative Example 2>
Comparative Example 2 has the same basic configuration as the joint orthosis according to Example 3, except that the connection ratio between the main body side end and the distal end side end is 8.3%. That is, in the joint orthosis according to Comparative Example 2, the length of the first band portion of the inner belt portion in the direction perpendicular to the circumferential direction is set to 15 mm. The cloth used for each part is the same as the cloth used in Example 1. Therefore, stretching force of stretching force and bottom inner peripheral diameter direction per unit length in the direction perpendicular per unit length of the circumference direction of each part is equivalent to those of Example 1.

<Elongation force of joint orthosis according to Examples 1 to 6 and Comparative Examples 1 and 2>
Tables 1 and 2 show the extension force of the joint orthosis according to Examples 1 to 6 and Comparative Examples 1 and 2. The stretching force shown in Tables 1 and 2 is obtained by measuring the stretching force per unit length of the stretching force of the cloth used in each part and calculating from this and the length of each part of the brace according to each embodiment. It is the result which showed the extending | stretching force which showed.

As shown in Tables 1 and 2, the combined value of the circumferential extension force of the joint orthosis (Examples 1 to 6) including the inner belt portion, particularly the circumferential extension force of the belt portion and the inner belt portion. Showed a significantly higher value than that of the joint orthosis according to Comparative Example 1 having no inner belt portion.
That is, it was confirmed that by providing the inner belt portion, the extension force of the inner belt portion was combined with the extension force of the belt portion, and as a result, the extension force in the circumferential direction was increased.
Here, it can be said that the combined value of the extension forces in the circumferential direction that can appropriately increase the fixing force while reducing the displacement amount of the joint orthosis is preferably 21.5 N or more.
In the joint orthosis according to each example, the combined value of the extension force in the circumferential direction between the belt portion and the inner belt portion is higher than the combined value of the joint devices according to each comparative example, and a value higher than the reference 21.5 N. From the above, it was confirmed that the joint orthosis was capable of appropriately pressing the joint of the wearer.

Further, the joint brace coupling ratio of the main body portion end and a distal end side end according to Comparative Example 2 is less than 13.9%, elongation force of the circumference direction of the inner belt portion is 2.5 N, Accordingly, the combined value of the elongation force in the circumferential direction of the belt portion and the inner belt portion was close to that of Comparative Example 1, and was lower than the reference value of 21.5 N.
That is, from the results of Comparative Example 2, when the connection ratio of the main body side end portion and the front end side end portion is less than 13.9%, even if the inner belt portion is provided, the belt portion and the inner belt Since the combined value of the extension force in the circumferential direction with the part is approximately the same as the combined value of the joint orthosis according to Comparative Example 1 (within the range of + 1N), it was confirmed that the desired fixing force was not provided. .
In other words, it has been confirmed that the connection ratio between the main body side end and the front end side end needs to be 13.9% or more in order to provide a desired fixing force.

In Tables 1 and 2, in the first belt portion and the second belt portion, the length in the circumferential direction and the length in the direction perpendicular to the circumferential direction are the same. Of the second belt portion are higher than those of the second belt portion.
This is because, in the joint orthosis according to each of Examples and Comparative Examples, is used as a material of the three-layer laminate urethane to the outer surface of the first belt portion constitutes a raised has been fastener looped yarn material This is because.

<Objective evaluation>
The present inventors manufactured the joint orthosis according to Example 1, and evaluated the followability of the joint orthosis in a direction perpendicular to the circumferential direction. Here, it is usual that the size of the knee joint, particularly the length in the circumferential direction of the knee joint, differs depending on individual differences. For this reason, the present inventors manufactured the joint orthosis according to Examples 7 and 8 having different circumferential lengths based on the joint orthosis according to Example 1. Then, with respect to the joint orthosis according to Examples 7 and 8, the evaluation regarding the following ability was also performed.
In this evaluation, a comparative evaluation was performed between the joint orthosis according to Examples 1, 7, and 8, and the joint orthosis according to Comparative Example 3.

<Example 7>
In the joint orthosis according to the seventh embodiment, the length of the main body in the circumferential direction is 140 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm.
The length of the first belt portion and the second belt portion in the circumferential direction is 135 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. In addition, the length in the circumferential direction of the connecting base constituting the first belt portion is 58 mm. Further, in the joint orthosis according to the seventh embodiment, the extension force of the first belt portion in the direction perpendicular to the circumferential direction is 11.6N, and the extension force of the second belt portion in the direction perpendicular to the circumferential direction is 7N. .2N.
The length of the first band portion and the second band portion of the inner belt portion in the circumferential direction is 80 mm, and the length in the direction perpendicular to the circumferential direction is 35 mm. That, coupled proportion of coupling ratio and the tip-side end of the body portion end according to Example 1 is 38.9%.

<Example 8>
In the joint orthosis according to the eighth embodiment, the length of the main body in the circumferential direction is 148 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm.
The length of the first belt portion and the circumferential radial direction of the second belt portion is 64 mm, the length of the circumference direction and the direction perpendicular is 70 mm. In addition, the length in the circumferential direction of the connecting base constituting the first belt portion is 64 mm. Further, in the joint orthosis according to the eighth embodiment, the extension force in the direction perpendicular to the circumferential direction of the first belt portion is 11.6N, and the extension force in the direction perpendicular to the circumferential direction of the second belt portion is 7N. .2N.
The length of the first band portion and the second band portion of the inner belt portion in the circumferential direction is 88 mm, and the length in the direction perpendicular to the circumferential direction is 35 mm. That is, the connection ratio of the body-side end and the connection ratio of the tip-side end according to the first embodiment are 38.9%.

<Comparative Example 3>
In the joint orthosis according to Comparative Example 3, the length of the main body in the circumferential direction is 134 mm, and the length in the direction perpendicular to the circumferential direction is 180 mm.
The length of the first belt portion and the second belt portion in the circumferential direction is 53 mm, and the length in the direction perpendicular to the circumferential direction is 70 mm. In addition, the length of the connecting base constituting the first belt part in the circumferential direction is 53 mm.
In the joint orthosis according to Comparative Example 3, both the first belt portion and the second belt portion are formed from three-layer laminate urethane. As a result, in the joint orthosis according to Comparative Example 3, the extension force of the first belt portion and the second belt portion in the direction perpendicular to the circumferential direction is 93.7N.
Further, since no inner belt portion is provided, the connection ratio between the main body side end and the front end side end is 0%.

In this evaluation, a joint orthosis according to Comparative Example 1 and joint orthosis according to each embodiment Have attached to healthy subjects, bending and stretching of 10 times of the knee joint after mounting the respective joint orthosis performed (squat), The amount of displacement of each joint orthosis in a direction perpendicular to the circumferential direction was measured.
Table 3 shows the evaluation results. In Table 3, the evaluation results of the examples show the average values of the results regarding the joint orthosis according to each example.

According to this evaluation result, with respect to the joint orthosis according to Comparative Example 1, the upper end of the joint orthosis was displaced 5.3 mm below the wearer with respect to the initial mounting position of the joint orthosis. The lower end of the joint brace was 7.0mm displaced above the wearer to the initial mounting position of the joint brace.
On the other hand, in the joint orthosis according to each example, the upper end of the joint orthosis was displaced 4.3 mm below the wearer with respect to the initial mounting position of the joint orthosis. The lower end of the joint orthosis was displaced 1.0 mm above the wearer with respect to the initial mounting position of the joint orthosis.
From this evaluation result, it was confirmed that when the stretching force of the belt portion in the direction perpendicular to the circumferential direction was larger than 78.0 N, the ability to follow the wearer's body surface was not ensured, and the circumferential direction was not ensured. The joint brace according to each of the embodiments, in which the extension force of the belt portion in the direction perpendicular to the joint is 6.6 to 78.0 N, is provided with the followability of the joint brace during the bending movement and the extension movement of the joint. Was confirmed.

<Subjective evaluation>
Furthermore, the present inventors have produced a joint orthosis according to Examples 1, 7 and 8, were worn evaluated. Several subjects were asked to wear the joint orthoses according to Examples 1, 7, and 8, and the evaluation was obtained. In addition, the subjective evaluation of wearing was carried out by attaching to a healthy person.
As a result, the following responses were obtained: "Easy to wear", "Easy to wear under clothes", "No slippage".
As a result, it was confirmed that the joint orthosis according to Examples 1, 7, and 8 secured the fixing force and had appropriate followability.

101, 201, 301 Joint orthosis 1 Main body 2 Belt 3 Inner belt 38 Main body side end 39 Front end side end

Claims (9)

The main body,
A pair of belt portions connected to the main body portion,
And a inner belt portion provided on the inner surface of the joint orthosis facing the body surface of the wearer,
Each of the pair of belt portions includes an upper band portion disposed to cover a periphery of an upper edge of the joint of the wearer, and a lower band disposed to cover a periphery of a lower edge of the joint of the wearer. And a part,
The upper band portion of one belt portion of the pair of belt portions is engaged with the upper band portion of the other belt portion of the pair of belt portions,
The lower band portion of one belt portion of the pair of belt portions is engaged with the lower band portion of the other belt portion of the pair of belt portions,
The inner belt portion is provided in a circumferential direction of the belt portion, and a main body side end portion to which at least one portion is connected to the main body portion or the belt portion, and a circumferential radial front end side of the belt portion. provided, have a, a tip end portion at least one portion is connected to said belt portion,
The connection ratio of the front end portion side end portion to the belt portion is 13.9 to 100% of the entire length of the belt portion in a direction perpendicular to a circumferential direction,
The connection ratio of the main body portion side end to the main body portion or the belt portion is 13.9 to 100% of the total length of the main body portion or the belt portion in a direction perpendicular to a circumferential direction,
Extension force of the belt portion in the circumference direction perpendicular directions, Ri 6.6~78.0N der,
A joint orthosis covering the knee joint or elbow joint of the wearer . The extension force of the belt portion in the circumferential direction is 2.6 to 28.9 N,
The joint orthosis according to claim 1, wherein an extension force of the inner belt portion in a circumferential direction is 4.1 to 57.9N. The inner belt portion,
The distal end side end portion is connected to the belt portion at two points of a first distal end side connecting portion and a second distal end side connecting portion,
The main body side end portion is connected to the main body portion or the belt portion at two places of a first main body side connection portion and a second main body side connection portion,
A first notch provided between the first distal end side connecting portion and the second distal end side connecting portion and not connected to the belt portion, the first body portion side connecting portion and the second 3. The joint orthosis according to claim 1, further comprising: a second cutout provided between the main body-side connecting portions and not connected to the main body portion or the belt portion. 4.   The joint orthosis according to any one of claims 1 to 3, wherein the inner belt portion is made of a three-layer laminate urethane.   The extension force of the main body in the circumferential direction is 10.2 to 35.8N, and the extension force of the main body in a direction perpendicular to the circumferential direction is 19.8 to 82.7N. The joint orthosis according to any one of Items 1 to 4.   It said body portion is provided with a shrinkage auxiliary section, the joint orthosis according to any one of claims 1 to 5.   The joint orthosis according to any one of claims 1 to 6, wherein the main body is formed of double Russell cloth. The belt portion and the inner belt portion are provided as a pair, respectively.
The joint orthosis according to any one of claims 1 to 7, wherein the pair of belt portions are provided so as to sandwich the main body portion in a circumferential direction.   The joint orthosis according to claim 8, wherein at least one of the pair of belt portions is formed of a three-layer laminate urethane.

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