Supporter for hallux valgus

Abstract

To provide a supporter for hallux valgus capable of adjusting a gap between a first toe and a second toe, adjusting an orthodontic force (stretching force) in the direction in which the first toe and the second toe separate, suppressing floating of the second toe to adjust alignment of the whole foot, and exercising an arbitrary orthodontic force in accordance with deformation degree of the hallux valgus of each person.SOLUTION: A supporter 10 for hallux valgus includes: a belt-shaped body part 20 which is used for prevention and correction of hallux valgus, is fitted to the foot 60, and is widened to separate the first toe 64 and the second tow 65 for use, has elasticity, and covers an instep part from the arch when worn; a table part 21 integrally provided in the body part 20 and supporting the foot (first toe 64, second toe 65, third toe 66, fourth toe 67, and fifth toe 68); and a thong type correction part 30 which is provided on the table part 21, separates the first toe 64 and the second toe 65, and presses the foot from above.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a hallux valgus supporter used for preventing and correcting hallux valgus.

Background Art

[0002] In hallux valgus, the tip of the big toe (thumb) of the foot bends in a V shape towards the index finger, and painful areas include the protruding part inside the joint at the base. As a preventive or corrective measure for such toe deformities, there are known hallux valgus correctors that correct hallux valgus by spreading the tip of the big toe away from the index finger (inward) (see Patent Documents 1 to 3).

[0003] The hallux valgus corrector of Patent Document 1 is composed of a buffer body that corrects hallux valgus and is sandwiched between the big toe and the index finger, and elastic ring bodies fixed to both sides thereof. The ring bodies are each detachably attached to the big toe and the index finger, and by shifting the positions on both sides of the buffer body (pad) corresponding to the positions of these fingers, it is difficult to come off and a good wearing feeling can be obtained. Further, on the surface of the buffer body, guides for preventing displacement of the buffer body are provided in the longitudinal direction of the toe. When the hallux valgus corrector is attached to the toe, the buffer body spreads the big toe and the index finger to an appropriate interval, and a corrective or preventive effect on hallux valgus can be obtained.

[0004] However, in the hallux valgus corrector of Patent Document 1, since the buffer body (pad) is sandwiched between the big toe and the index finger, it is not possible to apply an arbitrary corrective force according to the degree of deformation of each person's hallux valgus. The buffer body is sandwiched while the big toe remains valgus, and the valgus of the big toe remains as it is, and the area from the index finger to the little toe (pinky toe) is pushed, and there is a risk that the corrective force will be impaired. Hallux valgus is not just a deformation of the finger, and the angle of the big toe with respect to the foot (the foot body, the nail) is important. Therefore, it is desirable to be able to arbitrarily determine the angle of the big toe with respect to the foot and the angle from the index finger to the little toe. The buffer body can act on the finger, but the force for aligning the alignment of the finger with respect to the foot is insufficient, and the adjustment of the corrective force (the force in the separating direction) for each of the big toe and the index finger cannot be made.

[0005] The hallux valgus supporter of Patent Document 2 includes a thumb accommodation bag for accommodating the big toe of the foot, a tension belt having elasticity with one end coupled to a portion located inside the thumb accommodation bag and extending toward the heel along the inside (medial side) of the foot, a holding means coupled to the other end of the tension belt for holding the tension belt in a state where it is extended along the inside (medial side) of the foot, and a linear reinforcing portion which is a tension load transmission means having a higher axial rigidity than the surroundings for transmitting the tension load of the tension belt to the thumb accommodation bag.

[0006] However, the hallux valgus supporter of Patent Document 2 transmits the tension load to the thumb accommodation bag to correct only the big toe (thumb), and does not prevent the index finger from lifting or correct it in a direction away from the big toe, and the force for aligning the entire toes with respect to the foot (foot body, instep) is insufficient.

[0007] The hallux valgus corrective footwear of Patent Document 3 has two longitudinally long grooves drilled at the center of the tip of the insole of the footwear toward the toe with the interval widening toward the toe tip, and the base end of the toenail covering the big toe (first toe) is fitted into the inner groove, and the base end of the toenail covering the other toes is fitted into the outer groove and attached, and both ends of the toenail on the front side of the ankle and both other ends of the toenail at the toe tip are sandwiched between the insole and the outsole.

[0008] However, the hallux valgus corrective footwear of Patent Document 3 only has two toenails that can be sandwiched between the big toe and the index finger with a fixed interval, which is the same action as sandwiching a pad of a fixed size between the big toe and the index finger, so an arbitrary corrective force according to the degree of deformation of each person's hallux valgus cannot be exerted, and the corrective force is insufficient. The buffer body can act on the toes, but the force for aligning the toes with respect to the foot is insufficient, and the corrective force (force in the separating direction) for each of the big toe and the index finger cannot be adjusted. Furthermore, since the hallux valgus corrective footwear is a type of footwear like a so-called sandal, different shoes cannot be worn, and for Japanese people who spend a long time taking off their shoes indoors, the wearing time is short, and it is difficult to exert the corrective force.

Prior Art Documents

Patent Documents

[0009] Patent Document 1 Japanese Patent Application Laid-Open No. 2007-313043 Patent Document 2 Japanese Patent Application Laid-Open No. 2022-114381 Patent Document 3 Japanese Patent Application Laid-Open No. 11-99002 Summary of the Invention Problems to be Solved by the Invention

[0010] In view of the above points, an object of the present invention is to provide a hallux valgus supporter that can adjust the opening interval between the big toe and the index toe and the corrective force (tensile force) in the direction in which the big toe and the index toe move apart, suppress the lifting of the index toe, align the entire finger with respect to the foot, and apply an arbitrary corrective force according to the degree of deformation of each person's hallux valgus. Means for Solving the Problems

[0011] According to an embodiment of the present invention, there is provided a hallux valgus supporter used for the prevention and correction of hallux valgus, a band-shaped main body portion having elasticity and covering the toenail portion from the instep when worn, a pedestal portion integrally provided on the main body portion for supporting the toes, and a nose strap type correction portion provided on the pedestal portion for opening between the big toe and the index toe and pressing the toes from above, the nose strap type correction portion includes a big toe side band having a proximal end provided on the pedestal portion, passing between the big toe and the index toe when worn, covering the big toe, and being fastened to the main body portion by pulling inward, and an index toe side band having a proximal end provided on the pedestal portion, passing between the big toe and the index toe when worn, covering the index toe, and being fastened to the main body portion by pulling outward.

[0012] According to the configuration of the present invention, the nose string type correction part includes a big toe side band with a proximal end provided on the base part, passing between the big toe and the index toe during wearing, covering the big toe, and being fastened to the main body part while being pulled inward, and an index toe side band with a proximal end provided on the base part, passing between the big toe and the index toe during wearing, covering the index toe, and being fastened to the main body part while being pulled outward. Therefore, the two bands, the big toe side band and the index toe side band, each independently pull the big toe and the index toe in the direction of separating them. Thus, it is possible to adjust the opening interval between the big toe and the index toe and the correction force (tensile force) in the direction of separating the big toe and the index toe respectively, and an arbitrary correction force can be applied according to the degree of deformation of the hallux valgus of each person.

[0013] Generally, when the symptoms of hallux valgus become severe, the big toe bent inward dives under the index toe and the index toe rises. In this regard, the hallux valgus supporter includes a nose string type correction part provided on the base part, opening between the big toe and the index toe, and pressing the toes from above. Since the independent index toe side band presses the index toe from above to below, it is possible to suppress the rising of the index toe and adjust the alignment of the whole finger with respect to the foot.

[0014] Preferably, the big toe side band has elasticity and includes a big toe separating part that forms the proximal end side and biases the big toe inward during wearing, a big toe pressing part that is continuous with the big toe separating part and covers the big toe during wearing, and a hook-and-loop fastener provided at the tip of the big toe pressing part and detachably fastened to the main body part. The index toe side band has elasticity and includes an index toe separating part that forms the proximal end side and biases the index toe outward during wearing, an index toe pressing part that is continuous with the index toe separating part and presses down the rising of the index toe during wearing, and a hook-and-loop fastener provided at the tip of the index toe pressing part and detachably fastened to the main body part.

[0015] According to such a configuration, since the big toe side band and the index toe side band are separate bodies, the big toe and the index toe can be respectively biased inward and outward with different optimal forces, and any corrective force can be applied according to the degree of hallux valgus deformation of each person. Furthermore, the big toe side band has elasticity and is composed of a big toe separate part that forms the proximal end side and biases the big toe inward when worn, a big toe pressing part that covers the big toe, a hook-and-loop fastener that is detachably fastened to the main body part, and parts with different roles respectively. Therefore, not only can the big toe be biased inward, but it can also be pressed from above to below, and the biasing force and the pressing force can be easily adjusted according to the position of the hook-and-loop fastener. Similarly, the index toe side band has elasticity and is composed of an index toe separate part that forms the proximal end side and biases the index toe outward when worn, an index toe pressing part that suppresses the lifting of the index toe, a hook-and-loop fastener that is detachably fastened to the main body part, and parts with different roles respectively. Therefore, not only can the index toe, middle toe, ring toe, and little toe be biased outward, but they can also be pressed from above to below, and the biasing force and the pressing force can be easily adjusted according to the position of the hook-and-loop fastener.

[0016] Preferably, a plurality of slits through which the big toe side band and the index toe side band can be inserted are provided in the base portion. The proximal ends of the big toe side band and the index toe side band are connected to the back of the base portion, are inserted into the slits, and extend to the front side of the base portion.

[0017] According to such a configuration, since a plurality of slits through which the big toe side band and the index toe side band can be inserted are provided in the base portion, by freely selecting the slits at appropriate positions from the plurality of slits and taking out the big toe side band and the index toe side band, any corrective force can be applied according to the degree of hallux valgus deformation of each person. Furthermore, since the proximal ends of the big toe side band and the index toe side band are connected to the back of the base portion, are inserted into the slits, and extend to the front side of the base portion, even when a strong load is applied, the big toe side band and the index toe side band can continue to be used without coming off.

[0018] Preferably, the big toe side band includes an attachment portion provided with a hook-and-loop fastener on its proximal end side, and is detachably provided on the base portion. The index toe side band is characterized in that it includes an attachment portion provided with a hook-and-loop fastener on its proximal end side and is detachably provided on the base portion.

[0019] According to such a configuration, since the big toe side band and the index toe side band each include an attachment portion provided with a hook-and-loop fastener and are detachably provided on the base portion, the big toe side band and the index toe side band can be provided at arbitrary positions on the base portion, and an arbitrary corrective force can be applied according to the degree of hallux valgus deformation of each person.

[0020] Preferably, the hook-and-loop fastener is fastened to the main body portion, the shear strength of the hook-and-loop fastener is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fastener is 0.39 N / cm or more and 1.34 N / cm or less.

[0021] According to such a configuration, the shear strength of the hook-and-loop fastener for fastening the big toe side band and the index toe side band to the main body portion is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fastener is 0.39 N / cm or more and 1.34 N / cm or less. In this way, even when the foot moves, the big toe side band and the index toe side band can be made difficult to come off at least, and when a strong load is applied to the hallux valgus supporter, the big toe side band and the index toe side band can come off to prevent damage.

[0022] Preferably, the nose string type correction portion is annular and elastic, and includes an annular toe space pad that is passed through the big toe side band and the index toe side band and is sandwiched between the big toe and the index toe when worn.

[0023] According to such a configuration, since the nose strap type correction part has an annular and stretchable shape and is provided with an annular interdigital pad through which the great toe side band and the index toe side band are passed and which is sandwiched between the great toe and the index toe when worn, the degree of separation between the great toe and the index toe can be adjusted by this annular interdigital pad. Therefore, an arbitrary correction force can be applied according to the degree of deformation of the hallux valgus of each person.

Advantages of the Invention

[0024] It is possible to provide a supporter that can actively assist in arch formation by lifting the outer longitudinal arch and can appropriately assist the foot following both the state where the inner longitudinal arch and the outer longitudinal arch are lifted and the state where they are collapsed.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0026] Embodiments of the present invention will be described below based on the accompanying drawings. Note that the drawings of the hallux valgus supporter 10 show an example of the configuration, and since it is symmetric about the left and right and has the same configuration, the left hallux valgus supporter 10 will be described as a representative.

Example

[0027] The hallux valgus will be described. As shown in FIG. 8(B), in the hallux valgus, the tip of the big toe (thumb) 64 of the foot 60 bends in a V shape toward the index finger 65, and a protruding portion 64a (see FIG. 7(A)) on the inner side of the joint at the base becomes painful. Further, when the symptoms of the hallux valgus become severe, the big toe 64 bent inward gets under the index finger 65 and the index finger 65 rises.

[0028] In this example, as shown in FIGS. 4 and 5, the foot 60 is described as being composed of a foot body including the instep 61, the toenail part 62, and the heel 63, and toes including the big toe (thumb) 64, the index finger (index finger) 65, the middle finger (middle finger) 66, the ring finger (ring finger) 67, and the little finger (little finger) 68. In addition, longitudinal arches on the outside and inside and a transverse arch connecting the bases of the five toes are formed on the foot 60.

[0029] Next, the hallux valgus supporter 10 will be described. As shown in FIGS. 1 to 4, the hallux valgus supporter 10 is used for the prevention and correction of hallux valgus, and is worn on the foot 60 and used by spreading it to separate the big toe 64 and the index toe 65.

[0030] The hallux valgus supporter 10 includes a belt-shaped main body 20 that is stretchable and covers the toenail part 62 from the instep 61 when worn, a base part 21 that is integrally provided on the main body 20 and supports the toes (big toe 64, index toe 65, middle toe 66, ring toe 67, little toe 68), and a nose string type correction part 30 that is provided on the base part 21 and opens between the big toe 64 and the index toe 65 and presses the toes from above.

[0031] The main body 20 and the base part 21 as a whole form a substantially T shape in plan view. The main body 20 is provided with a longitudinal arch pad 22 that assists in forming the longitudinal arch, a transverse arch pad 23 that assists in forming the transverse arch, and a reinforcing loop 24 that reinforces the attachment and detachment parts of the hook-and-loop fasteners 41 and 43 described later. The reinforcing loop 24 may be provided with a hook-and-loop fastener loop to facilitate the attachment of the hook-and-loop fasteners 41 and 43.

[0032] In addition, the hallux valgus supporter 10 includes a front toenail band 40 that is provided at one end of the main body 20, covers the front side of the toenail part 62 when worn, and is detachably fastened to the main body 20, a rear toenail band 42 that is provided at one end of the main body 20 at an interval from the front toenail band 40, covers the rear side of the toenail part 62 when worn, and is detachably fastened to the main body 20, and a heel band 50 that is provided on the main body 20 at a position different from the rear toenail band 42, covers the heel 63 when worn, and is detachably fastened to the main body 20.

[0033] A hook-and-loop fastener 41 that is detachable from the main body 20 is provided at the tip of the front toenail band 40, a hook-and-loop fastener 43 that is detachable from the main body 20 is provided at the tip of the rear toenail band 42, and a hook-and-loop fastener 51 that is detachable from the main body 20 is provided at the tip of the heel band 50.

[0034] In the hallux valgus supporter 10, the main body part 20, the base part 21, the front band 40 for the toenail, the rear band 42 for the toenail, and the heel band 50 are integrally formed and are made of a stretchable fabric.

[0035] Next, the nose string type correction part 30 will be described. The nose string type correction part 30 includes a hallux side band 31 whose base end is provided on the base part 21, passes between the hallux 64 and the index toe 65 during wearing, covers the hallux 64, and is fastened to the main body part 20 while being pulled inward, and an index toe side band 32 whose base end is provided on the base part 21, passes between the hallux 64 and the index toe 65 during wearing, covers the index toe 65, and is fastened to the main body part 20 while being pulled outward.

[0036] Further, the nose string type correction part 30 includes an annular and stretchable annular toe web pad 33 through which the hallux side band 31 and the index toe side band 32 pass and which is sandwiched between the hallux 64 and the index toe 65 during wearing. When the hallux side band 31 and the hallux side band 31 spread the hallux 64 and the index toe 65 in opposite directions (the hallux 64 inward and the index toe 65 outward) so that they are separated, the annular toe web pad 33 can adjust the degree of separation between the hallux 64 and the index toe 65. The hallux side band 31 and the hallux side band 31 are passed between the hallux 64 and the index toe 65, and the hallux side band 31 and the hallux side band 31 pull the hallux 64 and the index toe 65 in a V shape extending horizontally rearward in plan view. Thereby, the toes (hallux 64, index toe 65, middle toe 66, ring toe 67, little toe 68) can be pulled in the direction in which the toes are aligned.

[0037] The hallux side band 31 has elasticity and includes a hallux separate part 31a that constitutes the base end side and biases the hallux 64 inward during wearing, a hallux pressing part 31b that is continuous with the hallux separate part 31a and covers the hallux 64 during wearing, and a hook-and-loop fastener 31c provided at the tip of the hallux pressing part 31b and detachably fastened to the main body part 20.

[0038] The second toe side band 32 has elasticity, and includes a second toe separating portion 32a that constitutes the proximal end side and biases the second toe 65 outward when worn, a second toe pressing portion 32b that is continuous with the second toe separating portion 32a and suppresses the lifting of the second toe 65 when worn, and a hook-and-loop fastener 32c that is provided at the tip of the second toe pressing portion 32b and is detachably fastened to the main body portion 20.

[0039] The hook-and-loop fastener 31c of the big toe side band 31 and the hook-and-loop fastener 32c of the second toe side band 32 are fastened to the main body portion 20, and the shear strength of the hook-and-loop fasteners 31c, 32c is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fasteners 31c, 32c is 0.39 N / cm or more and 1.34 N / cm or less.

[0040] Thereby, the shear strength of the hook-and-loop fasteners 31c, 32c that fasten the big toe side band 31 and the second toe side band 32 to the main body portion 20 is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fasteners 31c, 32c is 0.39 N / cm or more and 1.34 N / cm or less. By doing so, even when the foot 60 is moved, the big toe side band 31 and the second toe side band 32 can be made difficult to come off at least, and when a strong load is applied to the hallux valgus supporter 10, the big toe side band 31 and the second toe side band 32 can come off to prevent damage.

[0041] Further, the front band 40 for the toenail, the rear band 42 for the toenail, and the heel band 50 are fastened to the main body portion 20 by hook-and-loop fasteners 41, 43, 51, and the shear strength of the hook-and-loop fasteners 41, 43, 51 is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fasteners 41, 43, 51 is 0.39 N / cm or more and 1.34 N / cm or less. Note that the shear strength and peel strength of the hook-and-loop fasteners 31c, 32c of the big toe side band 31 and the second toe side band 32 may be set to lower values than the shear strength and peel strength of the hook-and-loop fasteners 41, 43, 51 of the front band 40 for the toenail, the rear band 42 for the toenail, and the heel band 50, respectively.

[0042] Next, the wearing of the hallux valgus supporter 10 of the embodiment will be described. As shown in Fig. 4(A), spread the hallux valgus supporter 10, sandwich the annular interdigital pad 33 of the nose strap type correction part 30 between the big toe 64 and the index toe 65 of the foot 60, place the toes (big toe 64, index toe 65, middle toe 66, ring toe 67, little toe 68) on the base part 21, and align the longitudinal arch pad 22 with the instep 61.

[0043] As shown in Fig. 4(B), wind the front band 40 for the toenail and the rear band 42 for the toenail around the foot 60 and fasten them with the hook-and-loop fasteners 41 and 43 so as to achieve appropriate tightening. Also, wind the heel belt 50 from behind the heel 63 and fasten it with the hook-and-loop fastener 51. Further, pull the big toe side band 31 so that the big toe 64 opens inward and fasten it with the hook-and-loop fastener 31c so as to achieve an appropriate correction force (biasing force). Similarly, pull the index toe side band 32 so that the index toe 65 opens outward and fasten it with the hook-and-loop fastener 32c so as to achieve an appropriate correction force (biasing force). Note that the order of fastening the hook-and-loop fasteners 41, 43, 51, 31c, and 32c may be changed as appropriate.

[0044] As shown in Figs. 5(A) and 5(B), the state in which the hallux valgus supporter 10 is worn is achieved. Since the big toe side band 31 and the index toe side band 32 can be fastened independently, an arbitrary correction force can be applied according to the shapes of various feet 60 and toes (big toe 64, index toe 65, middle toe 66, ring toe 67, little toe 68) and the degree of deformation of each person's hallux valgus.

[0045] Also, on the base part 21 (see Fig. 4), a base reinforcement part 21a for reinforcing this base part 21 is provided. Therefore, the shape of the part where a strong force is applied by the toes (big toe 64, index toe 65, middle toe 66, ring toe 67, little toe 68) can be maintained, the nose strap type correction part 30 can function effectively, the separation between the big toe 64 and the index toe 65 can be maintained, and the lifting can be suppressed. The base reinforcement part 21a may be provided with a hook-and-loop fastener loop for facilitating the attachment of the hook-and-loop fasteners 31c and 32c.

[0046] In addition, since the front band 40 and the rear band 42 for the big toe can be fastened independently, it is possible to adjust the tightening degree according to the shape of various feet 60 and each part. The heel band 50 can prevent the front-to-back displacement of the hallux valgus supporter 10 with respect to the foot 60 during walking or the like.

[0047] Next, the operation of the hallux valgus supporter 10 of the embodiment will be described. As shown in FIGS. 6 and 7(c), in a state where the hallux valgus supporter 10 is attached to the foot 60, the big toe side band 31 biases the big toe 64 as shown by the arrow (1), and the big toe 64 opens inward as shown by the arrow (2). Further, the index toe side band 32 biases the index toe 65 as shown by the arrow (3), and the index toe 65 opens outward as shown by the arrow (42). At the same time, the index toe 65, middle toe 66, ring toe 67, and little toe 68 are pressed as shown by the arrow (5) to suppress the lifting of the index toe 65.

[0048] Next, the operation of the hallux valgus corrector 100 of the comparative example will be described. As shown in FIG. 7(A), the hallux valgus corrector 10 of the comparative example sandwiches the hallux valgus corrector 10 as a buffer body between the big toe 64 and the index toe 55. However, since the hallux valgus corrector 10 of the comparative example only sandwiches the buffer body between the big toe 64 and the index toe 65, it is not possible to apply an arbitrary correction force according to the degree of deformation of each person's hallux valgus. The buffer body is sandwiched while the big toe is valgus, and the valgus of the big toe remains as it is, and the index toe to the little toe (little finger) are pushed, so there is a risk that the correction force will be impaired.

[0049] Next, the operation of the hallux valgus supporter 110 of another comparative example will be described. As shown in Fig. 7(B), the hallux valgus supporter 110 of the comparative example includes a support portion 111 that is applied from the hallux 64 to the side portion of the foot 60 and is made of a hard material, a hallux band 112 that fixes the hallux 64 to the support portion 111, a foot band 113 that fixes the support portion 111 to the foot 60, and a heel band 114 for suppressing the forward and backward movement of the support portion 111. However, although the hallux valgus supporter 110 of the comparative example can pull the hallux 64 inward, the hard support portion 111 is disposed on the side portion of the foot, so it is structurally bulky and shoes cannot be worn.

[0050] Next, the toe separating action of the hallux valgus supporter 10 of another embodiment will be described. As shown in Fig. 7(C), in the hallux valgus supporter 10 of the embodiment, the hallux 64 is opened inward as indicated by the arrow (1) by the hallux side band 31, and the second toe 65 is opened outward as indicated by the arrow (3) by the second toe side band 32, so that the hallux 64 and the second toe 65 are separated and can be in a separated state. Further, since the hallux side band 31 and the second toe side band 32 of the hallux valgus supporter 10 are made of a flexible material having elasticity, not only can it be worn on the bare foot 60, but also shoes can be worn with it on the foot 60.

[0051] Next, the action of the annular interdigital pad 33 of the hallux valgus supporter 10 according to the embodiment and the action of suppressing the lifting of the toes will be described. As shown in Fig. 8(A), the annular interdigital pad 33 is disposed at the base ends of the hallux side band 31 and the second toe side band 32 that are independently and separately provided. For this reason, the hallux side band 31 and the second toe side band 32 are prevented from opening separately, and the degree of separation between the hallux 64 and the second toe 65 can be adjusted by the annular interdigital pad 33.

[0052] As shown in FIG. 8(B), in hallux valgus, when the big toe 64 dives under the second toe 65 and the second toe 65 rises, the big toe 64 is opened inward by the hallux valgus supporter 10 as shown by the arrow (2), and the second toe 65 is opened outward as shown by the arrow (4) and pushed from above to below as shown by the arrow (5). As a result, the second toe 65 indicated by the imaginary line in FIG. 8(A) is pressed to the position of the second toe 65 indicated by the solid line, and an appropriate arrangement of the toes (second toe 65) can be achieved.

[0053] Next, another aspect of the noseband-type correction part 30 according to the embodiment will be described. As shown in FIG. 9(A), in the hallux valgus supporter 10, a plurality of slits 25 through which the big toe side band 31 and the second toe side band 32 can be inserted are provided in the base part 21. The proximal ends of the big toe side band 31 and the second toe side band 32 are connected to the back of the base part 21. The big toe side band 31 and the second toe side band 32 are respectively inserted into arbitrarily selected slits 25 among the plurality of slits 25 and extended to the front side of the base part 21. In this way, the positions and intervals of the big toe side band 31 and the second toe side band 32 can be freely set. Thereby, an arbitrary correction force can be applied according to the degree of deformation of each person's hallux valgus.

[0054] Next, a further aspect of the noseband-type correction part 30 according to the embodiment will be described. As shown in FIG. 9(B), in the hallux valgus supporter 10, the big toe side band 31 includes an attachment part 31d provided with a hook-and-loop fastener 31e on its proximal end side, and is detachably provided on the base part 21. The second toe side band 32 includes an attachment part 32d provided with a hook-and-loop fastener 32e on its proximal end side, and is detachably provided on the base part 21. In this way, since the big toe side band 31 and the second toe side band 32 each include attachment parts 31d, 32d provided with hook-and-loop fasteners 31e, 32e and are detachably provided on the base part 21, the big toe side band 31 and the second toe side band 32 can be respectively provided at arbitrary positions on the base part 21 as shown by the arrow (6), and an arbitrary correction force can be applied according to the degree of deformation of each person's hallux valgus.

[0055] Next, the effects of the hallux valgus supporter 10 of the above-described embodiments will be described. In the embodiment of the present invention, the nose strap type correction part 30 includes a hallux side band 31 whose base end is provided on the base part 21, passes between the hallux 64 and the second toe 65 during wearing, covers the hallux 64, and is fastened to the main body part 20 while being pulled inward, and a second toe side band 32 whose base end is provided on the base part 21, passes between the hallux 64 and the second toe 65 during wearing, covers the second toe 65, and is fastened to the main body part 20 while being pulled outward. Therefore, the two bands, the hallux side band 31 and the second toe side band 32, independently pull the hallux 64 and the second toe 65 in the direction of separating them. Thus, it is possible to adjust the opening interval between the hallux 64 and the second toe 65 and the correction force (tensile force) in the direction in which the hallux 64 and the second toe 65 separate, and an arbitrary correction force can be applied according to the degree of deformation of each person's hallux valgus.

[0056] Furthermore, the nose strap type correction part 30 includes an annular and stretchable annular toe pad 33 through which the hallux side band 31 and the second toe side band 32 are passed and which is sandwiched between the hallux 64 and the second toe 65 during wearing. Therefore, the separation degree between the hallux 64 and the second toe 65 can be adjusted by this annular toe pad 33. For this reason, an arbitrary correction force can be applied according to the degree of deformation of each person's hallux valgus.

[0057] Furthermore, since the big-toe side band 31 and the index-toe side band 32 are separate bodies, the big toe 64 and the index toe 65 can be respectively biased inward and outward with different optimal forces, and any corrective force can be applied according to the degree of hallux valgus deformation of each person. Furthermore, the big-toe side band 31 has elasticity and is composed of a big-toe separating part 31a that constitutes the proximal end side and biases the big toe 64 inward when worn, a big-toe pressing part 31b that covers the big toe 64, and a hook-and-loop fastener 31c that is detachably fastened to the main body part 20. Since it is composed of parts with different roles, not only can the big toe 64 be biased inward, but it can also be pressed from above to below, and the biasing force and the pressing force can be easily adjusted according to the position of the hook-and-loop fastener 31c. Similarly, the index-toe side band 32 has elasticity and is composed of an index-toe separating part 32a that constitutes the proximal end side and biases the index toe outward when worn, an index-toe pressing part 32b that suppresses the lifting of the index toe 65, and a hook-and-loop fastener 32c that is detachably fastened to the main body part 20. Since it is composed of parts with different roles, not only can the index toe 65, the middle toe 66, the ring toe 67, and the little toe 68 be biased outward, but they can also be pressed from above to below, and the biasing force and the pressing force can be easily adjusted according to the position of the hook-and-loop fastener 32c.

[0058] Furthermore, since a plurality of slits 25 through which the big-toe side band 31 and the index-toe side band 32 can be inserted are provided in the base part 21, by freely selecting the slit 25 at an appropriate position from the plurality of slits 25 and taking out the big-toe side band 31 and the index-toe side band 32, any corrective force can be applied according to the degree of hallux valgus deformation of each person. Furthermore, the proximal ends of the big-toe side band 31 and the index-toe side band 32 are connected to the back of the base part 21, are inserted through the slit 25, and extend to the front side of the base part 21. Therefore, even when a strong load is applied, the big-toe side band 31 and the index-toe side band 32 can continue to be used without coming off.

[0059] Furthermore, the big toe side band 31 and the index toe side band 32 each include attachment portions 31d and 32d provided with hook-and-loop fasteners 31e and 32e, respectively, and are detachably provided on the base portion 21. Therefore, the big toe side band 31 and the index toe side band 32 can be provided at arbitrary positions on the base portion 21, and an arbitrary corrective force can be applied according to the degree of hallux valgus deformation of each person.

[0060] The shear strength of the hook-and-loop fasteners 31c and 32c that fasten the big toe side band 31 and the index toe side band 32 to the main body portion 20 is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the hook-and-loop fasteners 31c and 32c is 0.39 N / cm or more and 1.34 N / cm or less. By setting these values, even when the foot 60 is moved, the big toe side band 31 and the index toe side band 32 can be made difficult to come off at least, and when a strong load is applied to the hallux valgus supporter 10, the big toe side band 31 and the index toe side band 32 can come off to prevent damage.

[0061] Furthermore, the hallux valgus supporter 10 includes a nose string type correction portion 30 provided on the base portion 21 that opens between the big toe 64 and the index toe 65 and presses the toes from above. Since the independent index toe side band 32 presses the index toe 65 from above to below, it is possible to suppress the lifting of the index toe 65 and adjust the alignment of the entire toe with respect to the foot.

[0062] In the embodiment, the nose string type correction portion 30 is used by passing the big toe side band 31 and the index toe side band 32 through the annular interdigital pad 33, but the present invention is not limited to this, and the annular interdigital pad 33 may be omitted and only the big toe side band 31 and the index toe side band 32 may be used.

[0063] That is, as long as the functions and effects of the present invention are achieved, the present invention is not limited to the embodiments.

Industrial Applicability

[0064] The technology of the present invention is suitable for a hallux valgus supporter used for the prevention and correction of hallux valgus.

Explanation of Reference Numerals

[0065] 10... Hallux valgus supporter, 20... Main body part, 21... Base part, 25... Slit, 30... Nasal cord type correction part, 31... Hallux side band, 31a... Hallux separate part, 31b... Hallux pressing part, 31c... Hook and loop fastener, 31d... Attachment part, 31e... Hook and loop fastener, 32... Index finger side band, 32a... Index finger separate part, 32b... Index finger pressing part, 32c... Hook and loop fastener, 32d... Attachment part, 32e... Hook and loop fastener, 33... Annular interdigital pad, 40... Toe cap front band, 42... Toe cap rear band, 50... Heel band, 60... Foot, 61... Arch (sole of the foot), 62... Toe nail part, 64... Hallux (big toe), 64a... Hallux base side part, 65... Index finger, 66... Middle finger, 67... Ring finger, 68... Little finger.

Claims

1. A hallux valgus supporter used for the prevention and correction of hallux valgus, comprising a belt-shaped main body having elasticity and covering the toenail part from the instep when worn, a base provided integrally with the main body for supporting the toes, and a nose strap type correction part provided on the base for opening between the big toe and the index toe and pressing the toes from above. The nose strap type correction part includes a big toe side band having a base end provided on the base, passing between the big toe and the index toe when worn, covering the big toe, and being fastened to the main body while pulling inward, and an index toe side band having a base end provided on the base, passing between the big toe and the index toe when worn, covering the index toe, and being fastened to the main body while pulling outward. The hallux valgus supporter is characterized by this.

2. The hallux valgus supporter according to Claim 1, wherein the big toe side band has elasticity, includes a big toe separate part forming the base end side and biasing the big toe inward when worn, a big toe pressing part continuous with the big toe separate part and covering the big toe when worn, and a hook-and-loop fastener provided at the tip of the big toe pressing part and detachably fastened to the main body. The index toe side band has elasticity, includes an index toe separate part forming the base end side and biasing the index toe outward when worn, an index toe pressing part continuous with the index toe separate part and suppressing the lifting of the index toe when worn, and a hook-and-loop fastener provided at the tip of the index toe pressing part and detachably fastened to the main body. The hallux valgus supporter is characterized by this.

3. The hallux valgus supporter according to Claim 1 or Claim 2, wherein a plurality of slits through which the big toe side band and the index toe side band can be inserted are provided in the base, and the base ends of the big toe side band and the index toe side band are connected to the back of the base, inserted through the slits, and extend to the front side of the base. The hallux valgus supporter is characterized by this.

4. The hallux valgus supporter according to Claim 1 or Claim 2, wherein the big toe side band includes a mounting part provided with a hook-and-loop fastener on its base end side and is detachably provided on the base, and the index toe side band includes a mounting part provided with a hook-and-loop fastener on its base end side and is detachably provided on the base. The hallux valgus supporter is characterized by this.

5. The hallux valgus supporter according to Claim 2, The surface fastener is fastened to the main body portion, the shear strength of the surface fastener is 2.6 N / cm2 or more and 8.3 N / cm2 or less, and the peel strength of the surface fastener is 0.39 N / cm or more and 1.34 N / cm or less. The hallux valgus supporter is characterized by this.

6. The hallux valgus supporter according to claim 1 or claim 2, The nose strap type correction portion is annular and elastic, and is provided with an annular interdigital pad through which the hallux side band and the index toe side band are passed and which is sandwiched between the hallux and the index toe when worn. The hallux valgus supporter is characterized by this.

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