Orthosis

Abstract

An orthosis is provided. In the orthosis, a first wearing member is configured to be fixed to a portion of a joint part on which the orthosis is worn, on a center side of a body. A second wearing member is configured to be fixed to a portion of the joint part on the opposite side of the center side of the body. A pressing member is configured to press a portion of the joint part on which the joint part is stretched when the joint part is bent. A plurality of tensile members are configured to connect the first wearing member, the second wearing member, and the pressing member in a tensile manner. The plurality of tensile members are respectively configured such that a change amount in a length of the tensile member when the joint part is bent and stretched becomes below a threshold value that is predetermined.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an orthosis, for example, to an orthosis to be worn on a body. BACKGROUND

[0002] For example, in the case of a hemiplegic patient or the like who is undergoing walking training, an orthosis is worn in order to prevent the knee of the affected leg from coming off. In association with such technology, in Japanese Patent No. 6886989, a knee orthosis is disclosed. The knee orthosis related to Japanese Patent No. 6886989 is composed of an upper mounting assembly to be received by the thigh of a patient, and a lower mounting assembly to be received by the lower leg of the patient. Each mounting assembly mounts a lateral side support and a medial side support. Hinges link the lateral side supports and the medial side supports of the upper mounting assembly and the lower mounting assembly to each other. SUMMARY

[0003] In the technology related to Japanese Patent No. 6886989, the upper mounting assembly and the lower mounting assembly are linked together via a linkage structure of the hinges, the lateral side supports, and the medial side supports. Since such a linkage structure has a certain weight and size, by employing the linkage structure in the knee orthosis, it is possible that the weight and the size of the knee orthosis will increase.

[0004] The present disclosure provides an orthosis that can achieve weight reduction and slimming of the size.

[0005] The orthosis related to the present disclosure is an orthosis to be worn on a body, which has:

[0006] a first wearing member configured to be fixed to a portion of the body on a center side of a joint part at which the orthosis is worn;

[0007] a second wearing member configured to be fixed to a portion of the joint part on an opposite side of the joint part from the center side of the body;

[0008] a pressing member configured to press a portion of the joint part on a side of the joint part that extends when the joint part is bent;

[0009] a plurality of stretching members configured to connect the first wearing member, the second wearing member, and the pressing member in a stretching manner,

[0010] the plurality of stretching members are respectively configured so that an amount of change in length of the stretching member when the joint part is bent and extended is below a threshold value that is predetermined.

[0011] Since the orthosis according to the present disclosure is configured in the above-described manner, the first wearing member and the second wearing member and the pressing member can be connected without using a link structure having a certain weight and size. Thus, the orthosis can be made lightweight and slim in size.

[0012] Further, preferably, the plurality of stretch members include:

[0013] a first stretch member configured to be fixed at one end to the first wearing member side of the pressing member, pass through the first wearing member, and be fixed at the other end to the second wearing member;

[0014] a second stretch member configured to be fixed at one end to the second wearing member side of the pressing member, pass through the second wearing member, and be fixed at the other end to the first wearing member.

[0015] By being configured in the above-described manner, the relative positions of the pressing member with respect to the first wearing member and the second wearing member can be appropriately set.

[0016] Further, preferably, the first stretch member is configured to pass through the first wearing member by being supported in a slidable manner by a first support mechanism provided on the first wearing member;

[0017] the second stretch member is configured to pass through the second wearing member by being supported in a slidable manner by a second support mechanism provided on the second wearing member.

[0018] By being configured in the above-described manner, the first stretch member and the second stretch member can be more appropriately configured in a manner in which the amount of change in the lengths of the first stretch member and the second stretch member becomes equal to or less than a threshold value.

[0019] Further, preferably, the plurality of stretch members include at least one third stretch member configured to be folded back between the pressing member and the first wearing member and between the pressing member and the second wearing member.

[0020] By being configured in the above-described manner, the relative positions of the pressing member with respect to the first wearing member and the second wearing member can be appropriately set.

[0021] Further, preferably, a resistance generating mechanism is further included, which is provided at at least one of the first wearing member and the pressing member and the second wearing member and the pressing member, and configured to generate resistance against movement of the pressing member in a manner of approaching or moving away with respect to the first wearing member and movement of the pressing member in a manner of approaching or moving away with respect to the second wearing member.

[0022] By being configured in the above-described manner, it is possible to generate resistance against the joint portion.

[0023] Further, preferably, a restriction mechanism is further included, which is configured to restrict reduction of a distance between the first wearing member and the second wearing member.

[0024] By being configured in the above-described manner, it is possible to suppress deviation of the first wearing member and the second wearing member from the joint portion.

[0025] Further, preferably, a movement mechanism is further included, which is configured to move a passing point through which the stretching member passes.

[0026] By being configured in the above-described manner, it is possible to absorb individual differences between users when the orthosis is worn on a plurality of different users.

[0027] Further, preferably, an elastic member is provided on the stretching member.

[0028] By being configured in the above-described manner, it is possible to absorb individual differences between users when the orthosis is worn on a plurality of different users.

[0029] According to the present disclosure, it is possible to provide an orthosis that can achieve weight reduction and thinning of size. BRIEF DESCRIPTION OF DRAWINGS

[0030] Features, advantages, and technical and industrial significance of exemplary embodiments of the present application will be described below with reference to the accompanying drawings, in which like numerals denote like elements, and wherein:

[0031] Figure 1 A diagram showing an orthosis according to Embodiment 1.

[0032] Figure 2 A diagram showing an orthosis according to Embodiment 1.

[0033] Figure 3 A diagram showing an orthosis according to Embodiment 1.

[0034] Figure 4 A diagram showing an orthosis according to Embodiment 1.

[0035] Figure 5 A diagram for illustrating a support mechanism according to Embodiment 1.

[0036] Figure 6 A diagram for illustrating a support mechanism according to Embodiment 1.

[0037] Figure 7 A diagram for illustrating a support mechanism according to Embodiment 1.

[0038] Figure 8 A diagram showing the behavior of the first and second stretch members when the joint part is bent in a state where the orthosis according to Embodiment 1 is worn on the joint part.

[0039] Figure 9 A diagram showing the behavior of the third stretch member when the joint part is bent in a state where the orthosis according to Embodiment 1 is worn on the joint part.

[0040] Figure 10 A flowchart for illustrating a method of determining the arrangement of the passing points of the respective stretch members in the orthosis 1 according to Embodiment 1.

[0041] Figure 11 A diagram showing a resistance generating mechanism according to Embodiment 2.

[0042] Figure 12 A diagram showing an orthosis according to Embodiment 3.

[0043] Figure 13 A diagram showing the behavior of the respective third stretch members when the joint part is bent in a state where the orthosis according to Embodiment 3 is worn on the joint part.

[0044] Figure 14 A diagram showing an orthosis according to Embodiment 4.

[0045] Figure 15 A diagram showing a moving mechanism according to the first example of Embodiment 5.

[0046] Figure 16 A diagram showing a moving mechanism according to the first example of Embodiment 5.

[0047] Figure 17 A diagram showing a moving mechanism according to the second example of Embodiment 5.

[0048] Figure 18A diagram for showing a moving mechanism involved in the second example of Embodiment 5.

[0049] Figure 19 A diagram for showing an orthosis involved in Embodiment 6.

[0050] Figure 20 A diagram for showing an orthosis involved in Embodiment 6. DETAILED DESCRIPTION

[0051] (Embodiment 1)

[0052] Hereinafter, the present embodiment will be described with reference to the drawings. The following description and the drawings are appropriately implemented with omissions and simplifications for the sake of explicitness of explanation. Further, in each drawing, the same reference signs are assigned to the same elements, and the repeated explanation is omitted as necessary.

[0053] Figures 1-4 A diagram for showing an orthosis 1 involved in Embodiment 1. Figure 1 A perspective view for showing an appearance of the orthosis 1 when viewed from a front side of the orthosis 1. Figure 2 A perspective view for showing an appearance of the orthosis 1 when viewed from a side of the orthosis 1. Figure 3 , Figure 4 A schematic view of the orthosis 1 when viewed from the side of the orthosis 1.

[0054] The orthosis 1 involved in the present embodiment is worn on a body of a user or the like. The orthosis 1 is worn on a joint portion of the body. Although the orthosis 1 is worn on a knee joint, for example, it is not limited thereto. The orthosis 1 can also be worn on an elbow joint or a finger joint, for example. In the following description, the orthosis 1 worn on the knee joint will be mainly described.

[0055] The orthosis 1 has a first wearing member 10, a second wearing member 20, and a pressing member 30. The first wearing member 10 is configured to be fixed to a portion of the body on the center side of a joint portion on which the orthosis 1 is worn. The first wearing member 10 can also be formed in a substantially cylindrical shape, for example. In a case where the orthosis 1 is worn on the knee joint, the first wearing member 10 is worn on a thigh portion. In this case, the first wearing member 10 functions as a thigh cuff. Further, in this case, the first wearing member 10 can be fixed to the thigh portion (the portion of the body on the center side of the knee joint) in a manner of being wound around the thigh portion, for example. That is, in a state where the thigh portion is inserted into the first wearing member 10, the first wearing member 10 can be fixed to the thigh portion in a manner of binding the thigh portion.

[0056] ​The second wearing member 20 is configured to be fixed to a portion of the joint part on which the orthosis 1 is worn, on the side opposite to the center side of the body. The second wearing member 20 can also be formed in a substantially cylindrical shape, for example. In the case where the orthosis 1 is worn on the knee joint, the second wearing member 20 is worn on the lower leg. In this case, the second wearing member 20 functions as a lower leg cuff. Further, in this case, the second wearing member 20 can be fixed to the lower leg (the portion of the knee joint on the side opposite to the center side of the body), for example, in a manner of being wound around the lower leg. That is, the second wearing member 20 can be fixed to the lower leg in a manner of tightening the lower leg, in a state where the lower leg is inserted into the second wearing member 20.

[0057] The pressing member 30 is configured to press a portion of the joint part on which the orthosis 1 is worn, on the side that stretches when the joint part is bent. The pressing member 30 can also be formed in a substantially plate shape. In the case where the orthosis 1 is worn on the knee joint, the pressing member 30 functions as a knee pressing member that presses the knee.

[0058] Here, for the sake of convenience of explanation, a three-dimensional coordinate system is defined as follows. The Z-axis is set as a direction along the joint part when the joint part is stretched. Further, the negative direction of the Z-axis is set as a direction in the joint part from the center side of the body toward the side opposite thereto. Accordingly, the first wearing member 10 is located on the positive direction side of the Z-axis with respect to the pressing member 30. Further, the second wearing member 20 is located on the negative direction side of the Z-axis with respect to the pressing member 30. In the case where the orthosis 1 is worn on the knee joint, the upward direction of the body is set as the positive direction of the Z-axis.

[0059] Further, the Y-axis is set as an axis perpendicular to the Z-axis and corresponding to the rotation axis when the joint part is bent. Further, the X-axis is set as an axis perpendicular to the Z-axis and the Y-axis. Further, the positive direction of the X-axis is set as a direction corresponding to the side that stretches when the joint part is bent, with respect to the joint part. In the case where the orthosis 1 is worn on the knee joint, the forward direction of the knee joint corresponds to the positive direction of the X-axis. Further, the positive direction of the Y-axis is set as the positive direction of the Y-axis in a right-hand system of coordinates. In the case where the orthosis 1 is worn on the knee joint, the left side of the knee joint corresponds to the positive direction of the Y-axis.

[0060] Further, the orthosis 1 has a plurality of stretching members 100. The stretching members 100 are configured to connect the first wearing member 10, the second wearing member 20, and the pressing member 30 in a stretched manner. With such a structure, the orthosis 1 forms a tensegrity structure. Here, the plurality of stretching members 100 are respectively configured so that the amount of change in the length of the stretching member 100 when the joint part is bent and stretched becomes equal to or less than a threshold value (allowable value) that is predetermined. Details will be described later.

[0061] Although the tensile member 100 is a linear member such as a wire, it is not limited thereto. The tensile member 100 can be a belt-like member or a ribbon-like member, for example. The tensile member 100 can be an arbitrary member that generates tension on the tensile member 100 when stretched by an external force at both ends and relaxes when no tension is generated.

[0062] The plurality of tensile members 100 includes a first tensile member 110, a second tensile member 120, and a third tensile member 130. Here, as shown in FIG. 1, the first tensile member 110 has a first tensile member 110L arranged on the positive direction side of the Y-axis of the orthosis 1 (for example, the left side of the knee joint) and a first tensile member 110R arranged on the negative direction side of the Y-axis of the orthosis 1 (for example, the right side of the knee joint). In addition, the second tensile member 120 has a second tensile member 120L arranged on the positive direction side of the Y-axis of the orthosis 1 (for example, the left side of the knee joint) and a second tensile member 120R arranged on the negative direction side of the Y-axis of the orthosis 1 (for example, the right side of the knee joint). In addition, the third tensile member 130 has a third tensile member 130L arranged on the positive direction side of the Y-axis of the orthosis 1 (for example, the left side of the knee joint) and a third tensile member 130R arranged on the negative direction side of the Y-axis of the orthosis 1 (for example, the right side of the knee joint). Although in the following description, each tensile member 100 arranged on the positive direction side of the Y-axis of the orthosis 1 is described unless specifically mentioned, the same applies to each tensile member 100 arranged on the negative direction side of the Y-axis of the orthosis 1. Figure 1

[0063] Figure 3 A schematic view showing the arrangement of the first tensile member 110 and the second tensile member 120 in the orthosis 1 according to Embodiment 1 is shown in FIG. 1. In addition, Figure 4 A schematic view showing the arrangement of the third tensile member 130 in the orthosis 1 according to Embodiment 1 is shown in FIG. 2. Figure 3 In addition, the third tensile member 130 has a third tensile member 130L arranged on the positive direction side of the Y-axis of the orthosis 1 (for example, the left side of the knee joint) and a third tensile member 130R arranged on the negative direction side of the Y-axis of the orthosis 1 (for example, the right side of the knee joint). Although in the following description, each tensile member 100 arranged on the positive direction side of the Y-axis of the orthosis 1 is described unless specifically mentioned, the same applies to each tensile member 100 arranged on the negative direction side of the Y-axis of the orthosis 1. Figure 4 The positive direction side of the Y-axis of the orthosis 1 is shown.

[0064] ​The first stretch member 110 is configured to be fixed at one end to the first wearing member 10 side of the pressing member 30, pass through the first wearing member 10, and be fixed at the other end to the second wearing member 20. The other end of the first stretch member 110 is fixed to the second wearing member 20 by the length adjustment mechanism 52. The length adjustment mechanism 52 has, for example, a mechanism that winds or rolls up the first stretch member 110. Thus, the length adjustment mechanism 52 has a function as an adjustment mechanism that adjusts the length of the first stretch member 110. In addition, the length adjustment mechanism 52 can also be constituted by a winding device that winds the first stretch member 110. The same applies to other length adjustment mechanisms described later.

[0065] The length of the first stretch member 110 can be adjusted by operating the length adjustment mechanism 52 when the orthosis 1 is worn on the joint part. Here, the "length of the first stretch member 110" refers to the length of the portion of the first stretch member 110 that comes out of the length adjustment mechanism 52 (the portion that is not wound by the length adjustment mechanism 52). That is, the length of the portion of the first stretch member 110 that is wound on the length adjustment mechanism 52 is not included in the "length of the first stretch member 110". In addition, the length of the portion of the first stretch member 110 that comes out of the length adjustment mechanism 52 is sometimes referred to as the "path length of the first stretch member 110".

[0066] The first stretch member 110 is configured to reach a position on the front side (positive direction side of the X-axis) of the first wearing member 10 from a position on the first wearing member 10 side (positive direction side of the Z-axis) of the pressing member 30. Also, the first stretch member 110 is configured to reach a position on the rear side (negative direction side of the X-axis) of the first wearing member 10 from the position thereof and further reach the length adjustment mechanism 52 via a position on the rear side (negative direction side of the X-axis) of the second wearing member 20.

[0067] The second stretch member 120 is configured to be fixed at one end to the second wearing member 20 side of the pressing member 30, pass through the second wearing member 20, and be fixed at the other end to the first wearing member 10. The other end of the second stretch member 120 is fixed to the first wearing member 10 by the length adjustment mechanism 54. The length adjustment mechanism 54 has, for example, a mechanism that winds or rolls up the second stretch member 120. Thus, the length adjustment mechanism 54 has a function as an adjustment mechanism that adjusts the length of the second stretch member 120.

[0068] The length of the second stretch member 120 is adjusted by operating the length adjustment mechanism 54 when the orthosis 1 is worn on the joint part. Here, the "length of the second stretch member 120" refers to the length of the portion of the second stretch member 120 that is outside the length adjustment mechanism 54 (the portion that is not wound by the length adjustment mechanism 54). That is, the length of the portion of the second stretch member 120 that is wound on the length adjustment mechanism 54 is not included in the "length of the second stretch member 120". In addition, the length of the portion of the second stretch member 120 that is outside the length adjustment mechanism 54 is sometimes referred to as the "path length of the second stretch member 120".

[0069] The second stretch member 120 is configured to reach a position on the front side (the positive direction side of the X axis) of the second wearing member 20 from a position on the second wearing member 20 side (the negative direction side of the Z axis) of the pressing member 30. Also, the second stretch member 120 is configured to reach a position on the rear side (the negative direction side of the X axis) of the second wearing member 20 from the position thereof and further reach the length adjustment mechanism 54 via a position on the rear side (the negative direction side of the X axis) of the first wearing member 10.

[0070] The third stretch member 130 is configured to turn back between the pressing member 30 and the first wearing member 10 and between the pressing member 30 and the second wearing member 20. Figure 1 In the example of FIG. 1, both ends of the third stretch member 130 are fixed to the first wearing member 10 by the length adjustment mechanism 56. The length adjustment mechanism 56 is provided at a position on the rear side (the negative direction side of the X axis) of the first wearing member 10. The length adjustment mechanism 56 has, for example, a mechanism that winds or rolls up the third stretch member 130. Thus, the length adjustment mechanism 56 has a function as an adjustment mechanism that adjusts the length of the third stretch member 130.

[0071] The length of the third stretch member 130 is adjusted by operating the length adjustment mechanism 56 when the orthosis 1 is worn on the joint part. Here, the "length of the third stretch member 130" refers to the length of the portion of the third stretch member 130 that is outside the length adjustment mechanism 56 (the portion that is not wound by the length adjustment mechanism 56). That is, the length of the portion of the third stretch member 130 that is wound on the length adjustment mechanism 56 is not included in the "length of the third stretch member 130". In addition, the length of the portion of the third stretch member 130 that is outside the length adjustment mechanism 56 is sometimes referred to as the "path length of the third stretch member 130".

[0072] The third stretch member 130 is configured to reach a position on the rear side (the negative direction side of the X axis) of the first wearing member 10 from the length adjustment mechanism 56 provided on the first wearing member 10 via the side surface (the negative direction side of the X axis) of the pressing member 30 and further reach a position on the front side (the positive direction side of the X axis) of the second wearing member 20 via a position on the front side (the positive direction side of the X axis) of the pressing member 30.Figure 4 The third stretching member 130 is configured to fold back at the position on the rear side of the second wearing member 20 (the positive side of the Y-axis) and reach the length adjustment mechanism 56 via the side position of the pressing member 30 (a different position than the one described above).

[0073] Furthermore, the first stretching member 110 is supported on a support mechanism 62 provided on the first wearing member 10 and the second wearing member 20. That is, the first stretching member 110 is configured to pass through the support mechanism 62 and then through the first wearing member 10 (and the second wearing member 20). Furthermore, the second stretching member 120 is supported on a support mechanism 64 provided on the first wearing member 10 and the second wearing member 20. That is, the second stretching member 120 is configured to pass through the support mechanism 64 and then through the second wearing member 20 (and the first wearing member 10). Furthermore, the third stretching member 130 is supported on a support mechanism 66 provided on the pressing member 30 and the second wearing member 20. That is, the third stretching member 130 is configured to pass through the support mechanism 66 and then through the pressing member 30 and the second wearing member 20.

[0074] Support mechanism 62 slidably supports the first tension member 110. Support mechanism 64 slidably supports the second tension member 120. Support mechanism 66 slidably supports the third tension member 130. Therefore, each support mechanism slidably supports each tension member 100. Furthermore, each support mechanism functions as a passing point for each tension member 100. In addition, since the length adjustment mechanism described above and the fixing part described later can form the ends of each tension member 100, they also function as passing points for each tension member 100.

[0075] Figures 5-7 This figure illustrates the support mechanism involved in Embodiment 1. Figure 5 Examples of hole-shaped support mechanisms 60 (support mechanisms 62, 64, 66) are shown. Figure 5 The support mechanism 60 illustrated is formed by forming a through hole in the components M (first wearing component 10, second wearing component 20, and pressing component 30). The stretching component 100 slides within the support mechanism 60 by being inserted into the hole-shaped support mechanism 60. Figure 5 The illustrated support mechanism 60 supports the tension member 100 in a slidable manner.

[0076] Figure 6 as well asFigure 7 An example is a support mechanism 60 formed by combining a part different from component M with component M. Figure 6 The illustrated support mechanism 60 can be formed by bolting the guide member to the member M. Furthermore, in Figure 6 In the example, the stretching member 100 slides on the guide member. Thus, Figure 6 The illustrated support mechanism 60 supports the tension member 100 in a slidable manner.

[0077] also, Figure 7 The illustrated support mechanism 60 can be formed by fixing the hook component to the component M. Furthermore, in Figure 7 In the example, the stretching member 100 slides on the hook member. Therefore, Figure 7 The illustrated support mechanism 60 supports the tension member 100 in a slidable manner.

[0078] In addition, adopt Figures 5-7 Which of the support mechanisms 60 illustrated can be determined based on the location where that support mechanism 60 should be installed. For example, when the shape of component M prevents it from being fixed at the location where the support mechanism 60 is installed. Figure 6 , Figure 7 In the case of the illustrated support mechanism 60, a configuration can also be adopted. Figure 5 The support mechanism 60 is illustrated in the example. Alternatively, when the shape of component M prevents the support mechanism 60 from being formed at the location where it is provided. Figure 5 In the case of the support mechanism 60 with the hole shape illustrated herein, a setting can also be adopted. Figure 6 , Figure 7 The support mechanism 60 is illustrated in the example. Furthermore... Figure 1 as well as Figure 2 The structures of the support mechanisms 62, 64, and 66 shown are not limited to... Figure 1 as well as Figure 2 The structure shown. For example, although Figure 2 The support mechanism 66 illustrated herein consists of Figure 6 The support mechanism 60 shown in the illustration is used, but it can also be composed of... Figure 5 or Figure 7 The support mechanism 60 shown in the example constitutes the structure.

[0079] One end of the first stretch member 110 is fixed by the fixing portion 42 at a position of the first wearing member 10 side (Z-axis positive direction side) of the pressing member 30. Also, the first stretch member 110 is supported in a slidable manner by the support mechanism 62A provided at a position on the front side (X-axis positive direction side) of the first wearing member 10. Further, the first stretch member 110 is supported in a slidable manner by the support mechanism 62B provided at a position on the rear side (X-axis negative direction side) of the first wearing member 10. Further, the first stretch member 110 is supported in a slidable manner by the support mechanism 62C provided at a position on the rear side (X-axis negative direction side) of the second wearing member 20. Also, as described above, the other end of the first stretch member 110, which is different from the one end fixed to the fixing portion 42, is fixed by the length adjustment mechanism 52. In addition, all of the support mechanisms 62A, 62B, 62C need not be provided. For example, the support mechanism 62C can be omitted.

[0080] One end of the second stretch member 120 is fixed by the fixing portion 44 at a position of the second wearing member 20 side (Z-axis negative direction side) of the pressing member 30. Also, the second stretch member 120 is supported in a slidable manner by the support mechanism 64A provided at a position on the front side (X-axis positive direction side) of the second wearing member 20. Further, the second stretch member 120 is supported in a slidable manner by the support mechanism 64B provided at a position on the rear side (X-axis negative direction side) of the second wearing member 20. Further, the second stretch member 120 is supported in a slidable manner by the support mechanism 64C provided at a position on the rear side (X-axis negative direction side) of the first wearing member 10. Also, as described above, the other end of the second stretch member 120, which is different from the one end fixed to the fixing portion 44, is fixed by the length adjustment mechanism 54. In addition, all of the support mechanisms 64A, 64B, 64C need not be provided. For example, the support mechanism 64C can be omitted.

[0081] As described above, one end of the third stretch member 130 is fixed by the length adjustment mechanism 56 provided on the first wearing member 10. Further, the third stretch member 130 is supported in a slidable manner by the support mechanism 66A provided at a position on the side surface (positive direction side of the Y axis) of the pressing member 30. Further, the third stretch member 130 is supported in a slidable manner by the support mechanism 66B provided at a position on the rear side (negative direction side of the X axis) of the second wearing member 20. Further, the third stretch member 130 is supported in a slidable manner by the support mechanism 66C provided at a position on the side surface of the pressing member 30 (a position different from the position of the support mechanism 66A). Also, as described above, the other end of the third stretch member 130 is fixed by the length adjustment mechanism 56 provided on the first wearing member 10. Thus, the third stretch member 130 is configured to be folded back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20. In addition, the structure for supporting the third stretch member 130 and the structure for fixing both ends thereof can be reversed in the positive and negative directions of the Z axis. That is, the length adjustment mechanism 56 can also be provided on the second wearing member 20, and the support mechanism 66C can also be provided on the first wearing member 10.

[0082] By the support mechanism 60, it is possible to appropriately generate tension on the stretch member 100. That is, by appropriately configuring the support mechanism 60 for supporting the stretch member 100, it is possible to cause the stretch member 100 to generate tension in such a manner that the pressing member 30 continuously presses the joint site regardless of the joint angle of the joint site. Further, thereby, it is possible to suppress the case where the orthosis 1 deviates from the joint site. Therefore, since it is not necessary to use a link structure having a certain weight and size, it is possible to achieve the lightweight and slimness of the orthosis 1.

[0083] In other words, in the orthosis 1 according to Embodiment 1, the relative position of the pressing member 30 with respect to the first wearing member 10 and the second wearing member 20 is defined. Also, the relative position of the pressing member 30 is defined by the balance of the tension of the first stretching member 110, the second stretching member 120, and the third stretching member 130. That is, by balancing the force applied to the joint portion from the first wearing member 10, the force applied to the joint portion from the second wearing member 20, and the force applied to the joint portion from the pressing member 30 in the orthosis 1, the relative position of the pressing member 30 is defined, and the pressing member 30 is brought into contact with the joint portion. Also, if the amount of change in the respective lengths (path lengths) of the first stretching member 110, the second stretching member 120, and the third stretching member 130 accompanying the bending and the stretching of the joint portion becomes equal to or less than a threshold value, the respective tensions of the first stretching member 110, the second stretching member 120, and the third stretching member 130 are maintained. In this case, the first stretching member 110, the second stretching member 120, and the third stretching member 130 are able to apply tension to the pressing member 30. Thus, the pressing member 30 is able to continuously press the joint portion regardless of the joint angle of the joint portion. Therefore, the movement of the pressing member 30 with respect to the joint portion can be suppressed.

[0084] In addition, the first stretching member 110 stretches the pressing member 30 in the positive direction (the upward direction) of the Z axis at two positions (left and right positions) in the Y axis direction. Also, the second stretching member 120 stretches the pressing member 30 in the negative direction (the downward direction) of the Z axis at two positions (left and right positions) in the Y axis direction. Thus, by the first stretching member 110 and the second stretching member 120, the position of the pressing member 30 with respect to the Z axis direction (the upward and downward direction), the position of the pressing member 30 with respect to the Y axis direction (the left and right direction), the angle of the pressing member 30 around the X axis (the roll angle), and the angle of the pressing member 30 around the Z axis (the yaw angle) with respect to the first wearing member 10 and the second wearing member 20 are defined.

[0085] Also, the third stretching member 130 stretches the pressing member 30 in the negative direction of the X axis at two positions (upper and lower positions) in the Z axis direction from the first wearing member 10. Also, the third stretching member 130 stretches the pressing member 30 in the negative direction of the X axis at two positions (upper and lower positions) in the Z axis direction from the second wearing member 20. Thus, by the third stretching member 130, the position of the pressing member 30 with respect to the X axis direction (the front and rear direction), the angle of the pressing member 30 around the Y axis (the pitch angle), and the angle of the pressing member 30 around the Z axis (the yaw angle) with respect to the first wearing member 10 and the second wearing member 20 are defined.

[0086] Figure 8Fig. 1 is a perspective view of an orthosis 1 according to an embodiment of the present application. Fig. 2 is a view showing the behavior of the first and second stretch members 110 and 120 when the joint part is bent in a state where the orthosis 1 according to the embodiment 1 is worn on the joint part. Here, when the joint part is bent or stretched, the relative positions of the first wearing member 10, the second wearing member 20, and the pressing member 30 change.

[0087] By bending the joint part, the first wearing member 10 rotates around the Y axis toward the negative direction side of the X axis as shown in Fig. 2, for example, when viewed from the second wearing member 20. Here, when the joint part is bent, the front side (the positive direction side of the X axis) of the joint part stretches, and the back side (the negative direction side of the X axis) of the joint part contracts. Figure 8

[0088] Therefore, in the first stretch member 110, the length between the fixed portion 42 and the support mechanism 62A becomes longer than that in the state of Fig. 1. On the other hand, in the first stretch member 110, the length between the support mechanism 62B and the support mechanism 62C becomes shorter than that in the state of Fig. 1. In addition, since the support mechanism 62A and the support mechanism 62B are provided on the first wearing member 10, the length between the support mechanism 62A and the support mechanism 62B in the first stretch member 110 does not change. Similarly, since the support mechanism 62C and the length adjustment mechanism 52 are provided on the second wearing member 20, the length between the support mechanism 62C and the length adjustment mechanism 52 in the first stretch member 110 does not change. Figure 3 Figure 3

[0089] ​​​In this way, when the joint site is bent, in the first tensile member 110, the length between the fixed portion 42 and the support mechanism 62A increases while the length between the support mechanism 62B and the support mechanism 62C decreases. Conversely, when the joint site is stretched, in the first tensile member 110, the length between the fixed portion 42 and the support mechanism 62A decreases while the length between the support mechanism 62B and the support mechanism 62C increases. Here, as described above, in order to maintain the tension of the first tensile member 110, it is necessary to make the amount of change in the path length of the first tensile member 110 accompanying the bending and the stretching of the joint site be below the allowable value (threshold value). Therefore, for the total length L1 of the length between the fixed portion 42 and the support mechanism 62A and the length between the support mechanism 62B and the support mechanism 62C, it is only necessary that the total length L1 not change much even if there is bending and stretching of the joint site. That is, it is only necessary that the fixed portion 42, the length adjustment mechanism 52, and each of the support mechanisms 62 be arranged in such a way that the amount of change in the total length L1 accompanying the bending and the stretching of the joint site is below the predetermined threshold value Th1. In addition, the method of arranging the fixed portion 42, the length adjustment mechanism 52, and the support mechanisms 62 will be described later. In addition, the total length L1 can also include the length between the support mechanism 62A and the support mechanism 62B and the length between the support mechanism 62C and the length adjustment mechanism 52.

[0090] In addition, when the joint site is bent, in the second tensile member 120, the length between the fixed portion 44 and the support mechanism 64A becomes longer than in the state of Figure 3 On the other hand, in the second tensile member 120, the length between the support mechanism 64B and the support mechanism 64C becomes shorter than in the state of Figure 3 In addition, since the support mechanism 64A and the support mechanism 64B are both provided on the second wearing member 20, the length between the support mechanism 64A and the support mechanism 64B in the second tensile member 120 does not change. Likewise, since the support mechanism 64C and the length adjustment mechanism 54 are both provided on the first wearing member 10, the length between the support mechanism 64C and the length adjustment mechanism 54 in the second tensile member 120 does not change.

[0091] Similarly, in the second tension member 120, when the joint bends, the length between the fixing part 44 and the support mechanism 64A increases while the length between the support mechanism 64B and the support mechanism 64C decreases. Conversely, when the joint extends, in the second tension member 120, the length between the fixing part 44 and the support mechanism 64A decreases while the length between the support mechanism 64B and the support mechanism 64C increases. Here, similar to the case of the first tension member 110, in order to maintain the tension of the second tension member 120, the change in the path length of the second tension member 120 accompanying the bending and extension of the joint needs to be below an allowable value (threshold). Therefore, the total length L2 of the length between the fixing part 44 and the support mechanism 64A and the length between the support mechanism 64B and the support mechanism 64C only needs to remain relatively constant even with bending and extension of the joint. In other words, the fixing part 44, the length adjustment mechanism 54, and each support mechanism 64 only need to be configured such that the change in the total length L2 accompanying the bending and extension of the joint is below a predetermined threshold Th2. Furthermore, the method for configuring the fixing part 44, the length adjustment mechanism 54, and the support mechanism 64 will be described later. Additionally, the total length L2 may include the length between support mechanisms 64A and 64B, and the length between support mechanism 64C and length adjustment mechanism 54. Furthermore, the threshold Th2 may be the same as or different from the threshold Th1.

[0092] Figure 9 This diagram illustrates the movement of the third stretching member 130 when the joint is bent, with the orthotic 1 according to Embodiment 1 worn on the joint. Figure 8 Similarly, through bending at the joints, thus... Figure 9 As shown, when viewed from the second wearing member 20, the first wearing member 10 rotates about the Y-axis towards the negative X-axis direction. Here, as described above, when the joint is bent, the front side (the positive X-axis side) of the joint extends and the rear side (the negative X-axis side) contracts. In this case, the distance between the length adjustment mechanism 56 and the support mechanism 66B becomes shorter.

[0093] Here, similar to the cases of the first stretching member 110 and the second stretching member 120, the length adjustment mechanism 56, support mechanism 66A, support mechanism 66B, and support mechanism 66C can be configured such that the change in the path length of the third stretching member 130 is below a predetermined threshold Th3. Furthermore, the method for configuring the length adjustment mechanism 56 and the support mechanism 66 will be described later. Additionally, the threshold Th3 may be different from the thresholds Th1 and Th2 described above.

[0094] In addition, as described above, the third stretch member 130 is configured to be folded back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20. Therefore, the length of the path of the third stretch member 130 changes in association with the bending and stretching of the joint portion, and is halved on each of the plurality of partial paths formed by the folding back. In Figure 4 In addition, as described above, the third stretch member 130 is configured to be folded back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20. Therefore, the length of the path of the third stretch member 130 changes in association with the bending and stretching of the joint portion, and is halved on each of the plurality of partial paths formed by the folding back. In Figure 9 In the example of the first embodiment, the third stretch member 130 is folded back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20. Therefore, the length of the path of the third stretch member 130 changes in association with the bending and stretching of the joint portion, and is halved on each of the plurality of partial paths formed by the folding back. In

[0095] Figure 10To, a flowchart illustrating a method of determining the arrangement of the passing points of the respective stretch members 100 in the orthosis 1 according to Embodiment 1. First, preparations before calculating the positions of the passing points (fixing portions, support mechanisms, and length adjustment mechanisms) are performed (S102 to S108). A worker fixes the first wearing member 10, the second wearing member 20, and the pressing member 30 on the joint portion of the user (step S102). In this state, the stretch member 100 is not mounted on the first wearing member 10, the second wearing member 20, and the pressing member 30. Therefore, the first wearing member 10, the second wearing member 20, and the pressing member 30 are fixed on the joint portion independently. For example, in the case of determining the arrangement of the passing points for the orthosis 1 worn on the knee joint, the first wearing member 10 (thigh cuff) is fixed on the thigh, the second wearing member 20 (calf cuff) is fixed on the calf, and the pressing member 30 (knee press) is fixed independently on the position corresponding to the knee bone.

[0096] Next, the user performs the flexion and extension movement of the joint portion, and the worker measures the flexion and extension movement of the joint portion by motion capture (step S104). Then, the worker records the joint angles and the positions and postures of the first wearing member 10, the second wearing member 20, and the pressing member 30 using the data obtained by the measurement (step S106). Then, the worker determines the initial positions of the passing points (step S108). The initial positions of the passing points are arbitrarily determined by the worker, for example, from the positions of the passing points in the orthosis 1 designed previously or the like.

[0097] Next, the optimization calculation of the positions of the passing points is performed (S110 to S118). The optimization calculation can be performed by simulation in a computer (information processing device), for example. The computer uses the records in S106 to calculate the amount of change in the path length of the stretch member 100 (first stretch member 110, second stretch member 120, or third stretch member 130) accompanying the flexion and extension (step S110). Specifically, the computer calculates the path length in each joint angle when the joint portion is bent and stretched, respectively. Then, the computer calculates the difference between the path length when the length changes the most and the reference length of the path length as the amount of change in the path length. The reference length can be set to the path length at the initial moment when the flexion and extension movement starts, for example.

[0098] In addition, the path length of the stretch member 100 can be represented by the total of the distances between the passing points. For example, Figure 3The path length of the first stretch member 110 shown in FIG. 1 corresponds to the sum of the distance between the fixed portion 42 and the support mechanism 62A, the distance between the support mechanism 62A and the support mechanism 62B, the distance between the support mechanism 62B and the support mechanism 62C, and the distance between the support mechanism 62C and the length adjustment mechanism 52. Further, the path length of the second stretch member 120 shown in FIG. 1 corresponds to the sum of the distance between the fixed portion 44 and the support mechanism 64A, the distance between the support mechanism 64A and the support mechanism 64B, the distance between the support mechanism 64B and the support mechanism 64C, and the distance between the support mechanism 64C and the length adjustment mechanism 54. Further, the path length of the third stretch member 130 shown in FIG. 1 corresponds to the sum of the distance between the length adjustment mechanism 56 and the support mechanism 66A, the distance between the support mechanism 66A and the support mechanism 66B, the distance between the support mechanism 66B and the support mechanism 66C, and the distance between the support mechanism 66C and the length adjustment mechanism 56. Figure 3 Figure 4

[0099] The computer determines whether the calculation of the prescribed number of levels is performed (step S112). Here, the prescribed number of levels refers to the number of trials in which the position of the passing point is changed and calculation is performed. As described later, the computer repeatedly performs the trial in which the position of the passing point is changed and calculation is performed until the prescribed number of levels is reached. In addition, in the trial, not only the position of the passing point is changed, but also the number of passing points can be changed. In the case where the calculation of the prescribed number of levels is not performed (NO in step S112), the computer moves the position of the passing point on the simulation (step S114). For example, the computer can move the position of each passing point arbitrarily within a predetermined range including the initial position and in which the passing point can be set. Further, the computer can move the position of each passing point independently. In addition, the simulation can be realized by a virtual space such as three-dimensional computer aided design (CAD, Computer Aided Design), for example.

[0100] Further, the processing of S110 is performed again at the position of the moved passing point. In this way, the following action is repeated a prescribed number of times, that is, the passing point is moved slightly and the processing of S110 is performed. In addition, the prescribed number of levels corresponds to the number of combinations of the positions of the passing points. For example, the prescribed number of levels can be 300 cases.

[0101] ​​Then, in a case where the calculation of the prescribed number of levels is implemented (Yes in S112), the computer determines whether the amount of change in the path length is below a threshold value that is prescribed in advance (step S116). Specifically, the computer selects the smallest amount of change among the amounts of change in the path length calculated in each of the calculations of the prescribed number of levels described above. For example, in a case where the prescribed number of levels is 300, the smallest amount of change among the amounts of change in the path length in the 300 cases is selected. Then, the computer determines whether the selected amount of change in the path length is below the threshold value. The threshold value can be the same as Thl, Th2, or Th3 described above.

[0102] In a case where the selected amount of change in the path length is not below the threshold value (No in S116), the initial positions of the passing points are changed (step S118). As for the change in the initial positions, the worker can arbitrarily implement. Alternatively, each passing point of the path (the arrangement of the stretch members 100) in which the amount of change is not below the threshold value but the smallest amount of change is achieved by the optimization calculation of the prescribed number of levels can be set as the initial position. Then, the processes of S110 to S118 are repeatedly implemented.

[0103] On the other hand, in a case where the amount of change in the path length is below the threshold value (Yes in S116), the computer ends the calculation. Then, the positions of each of the passing points of the path (the arrangement of the stretch members 100) in which the amount of change is the smallest are decided as the positions of the passing points (the fixing portions, the support mechanisms, and the length adjustment mechanisms) provided on each of the members. In this way, each of the stretch members 100 can be arranged so that the amount of change in the length (the path length) of the stretch member 100 when the joint portion is bent and stretched is below the threshold value.

[0104] In addition, in a case where Yes in the process of S116, it is also possible to confirm whether the stretch member 100 interferes with the portion of the body. Specifically, the computer arranges each of the passing points at the decided positions of the passing points on the orthosis 1 and arranges each of the stretch members 100 with respect to the arranged passing points on the simulation. The computer virtually wears the orthosis 1 in which each of the stretch members 100 is arranged on the joint portion. Then, the computer determines whether each of the stretch members 100 interferes with the joint portion and the portion around the joint portion. In a case where the stretch member 100 does not interfere with the portion of the body, the positions of each of the passing points of the path in which the amount of change is the smallest are decided as the positions of the passing points (the fixing portions, the support mechanisms, and the length adjustment mechanisms) provided on each of the members as described above.

[0105] On the other hand, when the stretching member 100 interferes with the part of the body, the computer can also configure the respective passing points at the positions of the passing points of the path that achieves the amount of change that is not the minimum but is below the threshold value obtained by the optimization calculation and implement the above-described processing, for example. Then, when the stretching member 100 interferes with the part of the body even if the above-described processing is implemented for all the paths that become the amount of change below the threshold value obtained by the optimization calculation, the initial positions of the passing points can be changed and the processing of S110 to S118 can be implemented again.

[0106] As described above, the orthosis 1 according to the present embodiment has the above-described first wearing member 10, the second wearing member 20, the pressing member 30, and the plurality of stretching members 100. Also, the stretching member 100 is configured so that the amount of change in the length (path length) of the stretching member 100 when the joint part is bent and stretched becomes below the threshold value that is predetermined. Thereby, as described above, the tension generated in the stretching member 100 can be maintained, and thus the tension can be applied to the pressing member 30. Thereby, the pressing member 30 can continuously press the joint part regardless of the joint angle of the joint part. Here, in the present embodiment, the stretching member 100 of a size that is lighter and thinner than the link structure is used as the member that links the first wearing member 10, the second wearing member 20, and the pressing member 30. Therefore, since it is not necessary to use the link structure having a certain weight and size to connect the wearing members and the pressing member, the weight reduction and the thinning of the size of the orthosis 1 can be achieved.

[0107] Further, in the orthosis 1 according to the present embodiment, the plurality of stretching members 100 can include the first stretching member 110 and the second stretching member 120. As described above, by the first stretching member 110 and the second stretching member 120, it is possible to specify the position of the pressing member 30 with respect to the Z-axis direction, the position with respect to the Y-axis direction, the angle around the X-axis, and the angle around the Z-axis of the first wearing member 10 and the second wearing member 20. Therefore, it is possible to appropriately set the relative position of the pressing member 30 with respect to the first wearing member 10 and the second wearing member 20.

[0108] Furthermore, in the orthodontic device 1 according to this embodiment, the first stretching member 110 can also be configured through the first wearing member 10 via the support mechanism 62 provided on the first wearing member 10. Similarly, the second stretching member 120 can be configured through the second wearing member 20 via the support mechanism 64 provided on the second wearing member 20. This allows for a more appropriate configuration of the first stretching member 110 and the second stretching member 120, ensuring that the change in length of the first stretching member 110 and the second stretching member 120 is below a threshold value. Therefore, tension can be generated in the first stretching member 110 and the second stretching member 120 more appropriately.

[0109] Furthermore, in the orthodontic device 1 according to this embodiment, the plurality of stretching members 100 may also include at least one third stretching member 130 configured to fold back between the pressing member 30 and the first wearing member 10 and between the pressing member 30 and the second wearing member 20. As described above, the third stretching member 130 allows the position of the pressing member 30 relative to the first wearing member 10 and the second wearing member 20 in the X-axis direction, the angle around the Y-axis, and the angle around the Z-axis to be defined. Therefore, the relative position of the pressing member 30 with respect to the first wearing member 10 and the second wearing member 20 can be appropriately set.

[0110] (Implementation Method 2)

[0111] Next, Embodiment 2 will be described. The orthotic 1 according to Embodiment 2 differs from the orthotic 1 according to Embodiment 1 in that it has a resistance generating mechanism. In addition, other structures of Embodiment 2 are substantially the same as those of Embodiment 1, so they will be omitted from the description.

[0112] Figure 11 The diagram shows the resistance generating mechanism 70 according to Embodiment 2. Additionally, in Figure 11 For illustrative purposes, the drawing of the stretching member 100 is omitted. A resistance generating mechanism 70 (70A) is disposed between the first wearing member 10 and the pressing member 30. Furthermore, a resistance generating mechanism 70 (70B) is disposed between the second wearing member 20 and the pressing member 30. The resistance generating mechanism 70 is configured to generate resistance relative to the joint when the orthosis 1 is worn on the joint.

[0113] The resistance generating mechanism 70 has a resistance generating member 72 and fixing members 74, 76. In the resistance generating mechanism 70A, the fixing member 74 is fixed to the pressing member 30, and the fixing member 76 is fixed to the first wearing member 10, so that the resistance generating mechanism 70A is fixed between the first wearing member 10 and the pressing member 30. Also, in the resistance generating mechanism 70B, the fixing member 74 is fixed to the pressing member 30, and the fixing member 76 is fixed to the second wearing member 20, so that the resistance generating mechanism 70B is fixed between the second wearing member 20 and the pressing member 30.

[0114] The resistance generating member 72 is configured to be stretchable and has a substantially cylindrical shape. The resistance generating member 72 may, for example, also be formed in a bellows (stretchable hose) shape. When the joint portion is bent, the resistance generating member 72 is stretched, and the volume of the resistance generating member 72 increases. On the other hand, when the joint portion is stretched, the resistance generating member 72 is contracted, and the volume of the resistance generating member 72 decreases.

[0115] Here, the resistance generating member 72 can be closed in a state in which a fluid is enclosed inside. Thus, the stretching action of the resistance generating member 72 is restricted. Therefore, the resistance generating mechanism 70 generates resistance with respect to the action of the pressing member 30 moving in a manner approaching or moving away with respect to the first wearing member 10 and the action of the pressing member 30 moving in a manner approaching or moving away with respect to the second wearing member 20. Thus, the bending and the stretching of the joint portion are restricted. In this way, the resistance generating mechanism 70 is able to generate resistance with respect to the joint portion. Also, the resistance generating mechanism 70 can be configured to not generate resistance by opening the closed state of the fluid in the resistance generating member 72. Also, at least one of the resistance generating mechanism 70A and the resistance generating mechanism 70B can be provided. Also, in the resistance generating mechanism 70 (70A or 70B) on one side, the number of resistance generating members 72 can be increased to increase the resistance generated by the resistance generating mechanism 70.

[0116] For example, in the case in which the orthosis 1 is worn on the knee joint, the resistance generating mechanism 70 is able to suppress the feeling of the knee joint coming off. Also, as described above, the pressing member 30 continuously presses the knee joint, so that the movement of the pressing member 30 with respect to the knee joint is suppressed. Therefore, in the present embodiment, the resistance generated by the resistance generating mechanism 70 can be effectively transmitted to the knee joint. Also, by increasing the resistance generated by the resistance generating mechanism 70 in the above-described manner, not only the unintentional feeling of the knee joint coming off can be suppressed, but also the action of the knee joint bending itself can be suppressed.

[0117] (Embodiment 3)

[0118] Next, Embodiment 3 will be described. In the orthotic 1 according to Embodiment 3, the structure of the third stretching member 130 differs from that of the orthotic 1 according to Embodiment 1, etc. Furthermore, regarding the other structures of Embodiment 3, since they are substantially the same as those according to Embodiment 1, etc., descriptions will be omitted.

[0119] Figure 12 This is a schematic diagram illustrating the orthotic 1 according to Embodiment 3. The orthotic 1 according to Embodiment 3 has two third tension members 130 (130A, 130B) on the positive Y-axis side (left side). Additionally, the same third tension members 130 are also provided on the negative Y-axis side of the orthotic 1. Therefore, the orthotic 1 according to Embodiment 3 has four third tension members 130.

[0120] The third stretching member 130A is configured to fold back between the pressing member 30 and the first wearing member 10. The third stretching member 130B is configured to fold back between the pressing member 30 and the second wearing member 20. Therefore, the third stretching members 130 (130A, 130B) are configured to fold back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20.

[0121] exist Figure 12 In the example, one end of the third stretching member 130A is fixed by a fixing part 46A located on the side of the first wearing member 10 (positive direction of the Z-axis) of the pressing member 30. On the other hand, the other end of the third stretching member 130A is fixed by a fixing part 47A located on the side of the second wearing member 20 (negative direction of the Z-axis) of the pressing member 30. Furthermore, the third stretching member 130A is configured to pass through a length adjustment mechanism 56A provided on the first wearing member 10. That is, the third stretching member 130A is supported on the length adjustment mechanism 56A within the first wearing member 10. Alternatively, the third stretching member 130A can be slidably supported on the length adjustment mechanism 56A. The length adjustment mechanism 56A functions as the point through which the third stretching member 130A passes.

[0122] Furthermore, one end of the third stretching member 130B is fixed by a fixing part 46B located on the side of the second wearing member 20 (the negative direction of the Z-axis) on the side of the pressing member 30. On the other hand, the other end of the third stretching member 130B is fixed by a fixing part 47B located on the side of the first wearing member 10 (the positive direction of the Z-axis) on the side of the pressing member 30. The third stretching member 130B is configured to pass through a length adjustment mechanism 56B provided on the second wearing member 20. That is, the third stretching member 130B is supported on the length adjustment mechanism 56B within the second wearing member 20. Alternatively, the third stretching member 130B can be slidably supported on the length adjustment mechanism 56B. The length adjustment mechanism 56B functions as the point through which the third stretching member 130B passes.

[0123] Length adjustment mechanism 56A is located on the rear side (negative X-axis side) of the first wearing member 10. Length adjustment mechanism 56B is located on the rear side (negative X-axis side) of the second wearing member 20. Length adjustment mechanism 56A has a mechanism for winding or unwinding the third stretching member 130A. Length adjustment mechanism 56B has a mechanism for winding or unwinding the third stretching member 130B. Thus, length adjustment mechanisms 56A and 56B function as adjustment mechanisms for adjusting the length of the third stretching member 130.

[0124] Figure 13 The diagram illustrates the movement of the third stretching members 130A and 130B when the joint is bent, with the orthotic 1 according to Embodiment 3 worn on the joint. Figure 9 Similarly, through bending at the joints, thus... Figure 13 As shown, when viewed from the second wearing member 20, the first wearing member 10 rotates about the Y-axis toward the negative X-axis direction. Furthermore, as described above, when the joint is bent, the front side (the positive X-axis side) of the joint extends and the rear side (the negative X-axis side) contracts. In this case, the distance between the length adjustment mechanism 56A and the length adjustment mechanism 56B becomes shorter.

[0125] Furthermore, similarly to Embodiment 1, the fixing parts 46A, 47A, and the length adjustment mechanism 56A are configured such that the change in the path length of the third stretching member 130A is below a predetermined threshold Th3a. Similarly, the fixing parts 46B, 47B, and the length adjustment mechanism 56B are configured such that the change in the path length of the third stretching member 130B is below a predetermined threshold Th3b. The threshold Th3a may be the same as or different from the threshold Th3b.

[0126] The third stretch member 130 (130A, 130B) according to Embodiment 3 is configured to be folded back between the pressing member 30 and the first wearing member 10, and between the pressing member 30 and the second wearing member 20. Therefore, as described above in Embodiment 1, it is possible to suppress the influence of the change in the path length of the third stretch member 130 on the pressing member 30. Therefore, even in the third stretch member 130 according to Embodiment 3, it is possible to appropriately set the relative position of the pressing member 30 with respect to the first wearing member 10 and the second wearing member 20.

[0127] (Embodiment 4)

[0128] Next, Embodiment 4 will be described. In the orthosis 1 according to Embodiment 4, the structure of the stretch member 100 is different from that of the orthosis 1 according to Embodiments 1 and the like. In addition, regarding other structures of Embodiment 4, since they are substantially the same as those according to Embodiments 1 and the like, the description thereof will be omitted.

[0129] Figure 14 A schematic view of the orthosis 1 according to Embodiment 4. Figure 14 Corresponding to Figure 3 The stretch member 100 (the first stretch member 110 and the second stretch member 120) has an elastic member 210 in the middle. In addition, although in Figure 14 the first stretch member 110 and the second stretch member 120 have the elastic member 210, the third stretch member 130 can also have the elastic member 210. The elastic member 210 can be constituted by, for example, a spring element.

[0130] By the elastic member 210, it is possible to absorb the individual differences between users when the orthosis 1 is worn on a plurality of different users. That is, since the size of the joint part of each user is different, in the case where the same orthosis 1 is worn on a plurality of users, there is a possibility that the adjustment by the length adjustment mechanism and the like becomes complicated. In this regard, by providing the elastic member 210 in the stretch member 100, it is possible to reduce the degree of complication of the adjustment when the orthosis 1 is worn on different users.

[0131] In addition, as described above, it is desirable that the amount of change in the path length of the stretch member 100 be small. It is also desirable that the amount of change in the length of the elastic member 210 be small. Therefore, the elastic coefficient of the elastic member 210 needs to be large to the extent that the elastic force thereof is not smaller than the force with which the pressing member 30 presses the joint part.

[0132] (Embodiment 5)

[0133] Next, Embodiment 5 will be described. In the orthosis 1 according to Embodiment 5, the structure of the passage point (support mechanism or the like) is different from that of the orthosis 1 according to Embodiment 1 or the like. In addition, regarding other structures of Embodiment 5, since they are substantially the same as those of Embodiment 1 or the like, the description thereof will be omitted. One or more passage points according to Embodiment 5 can be moved by a moving mechanism. That is, the orthosis 1 according to Embodiment 5 has a moving mechanism configured to move the passage point through which the tensile member 100 passes.

[0134] Figure 15 and Figure 16 is a view showing the moving mechanism 220 according to the first example of Embodiment 5. In addition, in Figure 15 and Figure 16 , only the negative direction side (lower side) of the Z axis of the orthosis 1 is depicted. In the second wearing member 20, the moving mechanism 220 is provided. That is, the orthosis 1 has the moving mechanism 220.

[0135] The moving mechanism 220 is configured to move the passage point, that is, the support mechanism 64A, through which the second tensile member 120 passes. Specifically, when the joint portion is bent in a state in which the orthosis 1 is worn on the joint portion, as shown by an arrow mark A of Figure 16 , the moving mechanism 220 moves (slides) the support mechanism 64A from the position of the point P to the position of the point P'.

[0136] By the moving mechanism 220, it is possible to absorb the individual differences between users when the orthosis 1 is worn on a plurality of different users. That is, since the sizes of the joint portions of each user are different, in the case in which the same orthosis 1 is worn on a plurality of users, there is a possibility that the adjustment performed by the length adjustment mechanism or the like becomes complicated. In this regard, by moving the support mechanism (passage point) using the moving mechanism 220, it is possible to reduce the degree of complication of the adjustment when the orthosis 1 is worn on different users.

[0137] In addition, as described above, it is desirable that the amount of change in the path length of the tensile member 100 be small. Therefore, it is necessary to restore the path of the second tensile member 120 to the original path. Therefore, as shown by an arrow mark A' of Figure 17 , the moving mechanism 220 generates a restoring force that restores the support mechanism 64A from the position of the point P' to the position of the original point P. Also, the restoring force needs to be large to the extent of the force with which the pressing member 30 presses the joint portion. For example, it is also possible to generate the restoring force by applying a force to the support mechanism 64A in the direction of the arrow mark A' using a spring element.

[0138] Further, the moving mechanism 220 can also move an arbitrary passing point. For example, the moving mechanism 220 can also move the support mechanism 64B. Further, the moving mechanism 220 can also be provided in the first wearing member 10 to move the support mechanism 62C. Further, the moving mechanism 220 can also move more than one support mechanism 62. Further, the moving mechanism 220 can also be provided in the pressing member 30 to move more than one support mechanism 66. Further, the moving mechanism 220 can also move the fixing portion or the length adjustment mechanism. The same applies to the moving mechanism 230 described later.

[0139] Figure 18 Further, the moving mechanism 220 can also move an arbitrary passing point. For example, the moving mechanism 220 can also move the support mechanism 64B. Further, the moving mechanism 220 can also be provided in the first wearing member 10 to move the support mechanism 62C. Further, the moving mechanism 220 can also move more than one support mechanism 62. Further, the moving mechanism 220 can also be provided in the pressing member 30 to move more than one support mechanism 66. Further, the moving mechanism 220 can also move the fixing portion or the length adjustment mechanism. The same applies to the moving mechanism 230 described later. Figure 17 Further, the moving mechanism 220 can also move an arbitrary passing point. For example, the moving mechanism 220 can also move the support mechanism 64B. Further, the moving mechanism 220 can also be provided in the first wearing member 10 to move the support mechanism 62C. Further, the moving mechanism 220 can also move more than one support mechanism 62. Further, the moving mechanism 220 can also be provided in the pressing member 30 to move more than one support mechanism 66. Further, the moving mechanism 220 can also move the fixing portion or the length adjustment mechanism. The same applies to the moving mechanism 230 described later. Figure 18 Further, the moving mechanism 220 can also move an arbitrary passing point. For example, the moving mechanism 220 can also move the support mechanism 64B. Further, the moving mechanism 220 can also be provided in the first wearing member 10 to move the support mechanism 62C. Further, the moving mechanism 220 can also move more than one support mechanism 62. Further, the moving mechanism 220 can also be provided in the pressing member 30 to move more than one support mechanism 66. Further, the moving mechanism 220 can also move the fixing portion or the length adjustment mechanism. The same applies to the moving mechanism 230 described later. Figure 18 Further, the moving mechanism 220 can also move an arbitrary passing point. For example, the moving mechanism 220 can also move the support mechanism 64B. Further, the moving mechanism 220 can also be provided in the first wearing member 10 to move the support mechanism 62C. Further, the moving mechanism 220 can also move more than one support mechanism 62. Further, the moving mechanism 220 can also be provided in the pressing member 30 to move more than one support mechanism 66. Further, the moving mechanism 220 can also move the fixing portion or the length adjustment mechanism. The same applies to the moving mechanism 230 described later.

[0140] The moving mechanism 230 is configured to move the passing point, i.e., the support mechanism 64A, through which the second stretching member 120 passes. Specifically, the moving mechanism 230 has, for example, a link member 232 formed in a plate shape and a rotation shaft 234. The rotation shaft 234 is supported on the second wearing member 20. The link member 232 is rotatably supported on the rotation shaft 234. Further, in the vicinity of the top end of the link member 232, the support mechanism 64A is provided. When the joint portion is bent in a state where the orthosis 1 is worn on the joint portion, the moving mechanism 230 moves the support mechanism 64A in a manner of rotating around the rotation shaft 234, as indicated by an arrow mark B of Figure 18

[0141] By the moving mechanism 230, it is possible to absorb individual differences between users when the orthosis 1 is worn on a plurality of different users. That is, since the sizes of joint portions of each user are different, in a case where the same orthosis 1 is worn on a plurality of users, there is a possibility that adjustment by the length adjustment mechanism or the like becomes complicated. In this regard, by moving the support mechanism (passing point) using the moving mechanism 230, it is possible to reduce the degree of complication of adjustment when the orthosis 1 is worn on different users.

[0142] Further, as described above, it is desirable that the amount of change in the path length of the stretching member 100 be small. Therefore, it is necessary to restore the path of the second stretching member 120 to the original path. Therefore, as Figure 19 ​The moving mechanism 230 generates a restoring force that restores the support mechanism 64A to the original position, as indicated by the arrow mark B'. Also, the restoring force needs to be large to the extent of the force with which the pressing member 30 presses the joint site. For example, the restoring force can be generated by applying force to the support mechanism 64A in the direction of the arrow mark B' by using a spring element.

[0143] (Embodiment 6)

[0144] Next, Embodiment 6 will be described. In the orthosis 1 according to Embodiment 6, the orthosis 1 differs from the orthosis 1 according to Embodiment 1 and the like in that the orthosis 1 has a restriction mechanism 300. Also, regarding other structures of Embodiment 6, since the structures are substantially the same as those of Embodiment 1 and the like, the description thereof will be omitted.

[0145] Figure 20 and Figure 19 A diagram showing the orthosis 1 according to Embodiment 6. Figure 1 Corresponding to the above Figure 20 . Figure 2 Corresponding to the above Figure 12 The orthosis 1 according to Embodiment 6 has a restriction mechanism 300 between the first wearing member 10 and the second wearing member 20. The restriction mechanism 300 has an elastic member 302, and connecting members 304 and 306 provided on both sides of the elastic member 302.

[0146] The connecting member 304 is connected to the positive direction side (front side) of the X axis of the first wearing member 10. Also, the connecting member 306 is connected to the positive direction side (front side) of the X axis of the second wearing member 20. The elastic member 302 is composed of a spring element. The elastic coefficient of the elastic member 302 is small to the extent that does not hinder the flexion and extension movement of the joint site.

[0147] The restriction mechanism 300 is configured to restrict the reduction in the distance between the first wearing member 10 and the second wearing member 20. Thus, by the restriction mechanism 300, the relative distance between the first wearing member 10 and the second wearing member 20 is more reliably maintained. That is, when the joint portion is stretched to the maximum extent so that the elastic member 302 is maximally contracted, by the restriction mechanism 300, the reduction in the distance between the first wearing member 10 and the second wearing member 20 is restricted. At this time, when the length adjustment mechanism excessively winds up the tensile member 100, the tension of the tensile member 100 becomes too strong, and thus there is a possibility that the tensile member 100 reduces the distance between the first wearing member 10 and the second wearing member 20. In this case, there is a possibility that the first wearing member 10 and the second wearing member 20 are detached from the joint portion. In this regard, by providing the restriction mechanism 300, even when the length adjustment mechanism excessively winds up the tensile member 100, the reduction in the distance between the first wearing member 10 and the second wearing member 20 is restricted. Thus, it is possible to suppress the deviation of the first wearing member 10 and the second wearing member 20 from the joint portion.

[0148] However, by appropriately configuring the tensile member 100 and the passing point, the tension of the tensile member 100 is appropriately generated. Thus, even without the restriction mechanism 300, it is possible to maintain the relative distance between the first wearing member 10 and the second wearing member 20. Thus, in the present embodiment, the restriction mechanism 300 is not an essential structural element.

[0149] On the other hand, by providing the resistance generation mechanism 70 according to Embodiment 2 between the first wearing member 10 and the pressing member 30, it is possible to generate a force in the direction in which the distance between the first wearing member 10 and the pressing member 30 is reduced. Similarly, by providing the resistance generation mechanism 70 according to Embodiment 2 between the second wearing member 20 and the pressing member 30, it is possible to generate a force in the direction in which the distance between the second wearing member 20 and the pressing member 30 is reduced. Thus, by providing the resistance generation mechanism 70 according to Embodiment 2 on the orthosis 1, it is possible to generate a force in the direction in which the distance between the first wearing member 10 and the second wearing member 20 is reduced. Thus, by the orthosis 1 having both the resistance generation mechanism 70 and the restriction mechanism 300, it is possible to suppress the deviation of the first wearing member 10 and the second wearing member 20 from the joint portion by the resistance generated by the resistance generation mechanism 70. That is, it is possible to generate a resistance in the joint portion while suppressing the deviation of the first wearing member 10 and the second wearing member 20 from the joint portion.

[0150] (Modification)

[0151] Furthermore, the present invention is not limited to the embodiments described above, and appropriate modifications can be made without departing from the spirit of the invention. For example, the various embodiments described above can be applied to each other. For example, the structure involved in embodiment 2 can also be applied to embodiments 3 and later.

[0152] Furthermore, the configuration of the first stretching member 110, the second stretching member 120, and the third stretching member 130 is not limited to the structure of the above-described embodiment. Furthermore, the number of each of the first stretching member 110, the second stretching member 120, and the third stretching member 130 is not limited to the number shown in the above-described embodiment. Although in the above-described embodiment, the number of the first stretching member 110 is set to two, the number of the second stretching member 120 is set to two, and the number of the third stretching member 130 is set to two or four, this is not a limitation. The configuration and number of the stretching members 100 are arbitrary, as long as the relative position of the pressing member 30 to the first wearing member 10 and the second wearing member 20 can be determined by the tension of the stretching member 100.

[0153] Furthermore, the orthosis 1 described in this embodiment may not be a separate device. For example, the orthosis 1 described in this embodiment may be integrated with clothing. When the orthosis 1 is worn on the knee joint, it may also be integrated with the area corresponding to the knee portion of the trousers.

[0154] In addition, Figure 13 as well as Figure 19 In the orthodontic device 1 according to Embodiment 3 shown, the support mechanism 60 may not be provided as the passing point of the third stretching member 130A. However, even in Embodiment 3, the third stretching member 130A can be supported by the support mechanism 60, and the third stretching member 130 can slide on the support mechanism 60. For example, as a first case, the support mechanism 60 may be provided on at least one of the first wearing member 10 and the pressing member 30. Furthermore, the third stretching member 130A may be slidably supported by the support mechanism 60 between the fixing part 46A and the length adjustment mechanism 56A and between the fixing part 47A and the length adjustment mechanism 56A.

[0155] Alternatively, as the second case, the support mechanism 60 can be provided instead of the fixing portions 46A and 47A at the positions of the fixing portions 46A and 47A. Also, both ends of the third stretch member 130A can be fixed by the length adjustment mechanism 56. Also, the third stretch member 130A can be configured to form a loop by the support mechanism 60 provided instead of the fixing portions 46A and 47A at the positions of the fixing portions 46A and 47A. Also, the third stretch member 130 can be supported by the support mechanism 60 provided on the pressing member 30 in a slidable manner.

[0156] With the above-described structure, the third stretch member 130A does not need to be configured to slide in the length adjustment mechanism. Also, the above-described two cases can be combined. Also, the above-described cases are the same for the third stretch member 130B.

[0157] Further, the restriction mechanism 300 according to Embodiment 6 can be of any shape as long as it can restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. For example, although the restriction mechanism 300 has the elastic member 302 as shown in Embodiments 1 to 5, the restriction mechanism 300 is not limited to such a structure. The restriction mechanism 300 can be physically provided separately on the first wearing member 10 and the second wearing member 20. In this case, the restriction mechanism 300 provided separately on the first wearing member 10 and the second wearing member 20 can collide with each other, thereby being able to restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. Further, in this case, the restriction mechanism 300 can be physically formed integrally on the first wearing member 10 and the second wearing member 20. Figure 20 Further, the restriction mechanism 300 according to Embodiment 6 can be of any shape as long as it can restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. For example, although the restriction mechanism 300 has the elastic member 302 as shown in Embodiments 1 to 5, the restriction mechanism 300 is not limited to such a structure. The restriction mechanism 300 can be physically provided separately on the first wearing member 10 and the second wearing member 20. In this case, the restriction mechanism 300 provided separately on the first wearing member 10 and the second wearing member 20 can collide with each other, thereby being able to restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. Further, in this case, the restriction mechanism 300 can be physically formed integrally on the first wearing member 10 and the second wearing member 20. ​ Further, the restriction mechanism 300 according to Embodiment 6 can be of any shape as long as it can restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. For example, although the restriction mechanism 300 has the elastic member 302 as shown in Embodiments 1 to 5, the restriction mechanism 300 is not limited to such a structure. The restriction mechanism 300 can be physically provided separately on the first wearing member 10 and the second wearing member 20. In this case, the restriction mechanism 300 provided separately on the first wearing member 10 and the second wearing member 20 can collide with each other, thereby being able to restrict the case where the distance between the first wearing member 10 and the second wearing member 20 is reduced. Further, in this case, the restriction mechanism 300 can be physically formed integrally on the first wearing member 10 and the second wearing member 20.

Claims

1. An orthosis to be worn on a body, comprising: a first wearing member configured to be fixed to a portion of the body on a center side of a joint part where the orthosis is worn; a second wearing member configured to be fixed to a portion of the joint part on an opposite side of the center side of the body; a pressing member configured to press a portion of the joint part on a side that stretches when the joint part is bent; a plurality of stretching members configured to connect the first wearing member, the second wearing member, and the pressing member in a stretching manner, wherein the plurality of stretching members are respectively configured so that an amount of change in length of the stretching member when the joint part is bent and stretched is below a threshold value that is predetermined, and wherein the plurality of stretching members are configured to include: a first stretching member configured so that one end is fixed to the first wearing member side of the pressing member, passes through the first wearing member, and the other end is fixed to the second wearing member; a second stretching member configured so that one end is fixed to the second wearing member side of the pressing member, passes through the second wearing member, and the other end is fixed to the first wearing member; and at least one third stretching member configured to be folded back between the pressing member and the first wearing member and between the pressing member and the second wearing member.

2. The orthosis according to claim 1, wherein the first stretching member is configured to pass through the first wearing member by a first support mechanism provided on the first wearing member to support the first stretching member in a slidable manner, and the second stretching member is configured to pass through the second wearing member by a second support mechanism provided on the second wearing member to support the second stretching member in a slidable manner.

3. The orthosis according to claim 1, further comprising a resistance generating mechanism provided at at least one of between the first wearing member and the pressing member and between the second wearing member and the pressing member, and configured to generate resistance against an action of the pressing member moving in a manner of approaching or moving away with respect to the first wearing member and an action of the pressing member moving in a manner of approaching or moving away with respect to the second wearing member.

4. The orthosis according to claim 3, further comprising a restriction mechanism configured to restrict a case where a distance between the first wearing member and the second wearing member is reduced.

5. The orthosis according to claim 1, further comprising a movement mechanism configured to move a passing point through which the stretching member passes.

6. The orthosis according to claim 1, wherein an elastic member is provided on the stretching member. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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