Adjustable linkage anti-inversion limiting hip external rotation orthopedic shoe cover

Abstract

The utility model discloses adjustable linkage anti-inversion limiting hip external rotation orthopedic shoe cover, including first shoe cover, second shoe cover, two groups of clamping devices, restraint belt and two connecting devices, wherein, first shoe cover and second shoe cover are set up respectively corresponding patient left and right foot, and two groups of symmetrical clamping devices are fixedly arranged respectively in the lateral end of first shoe cover and second shoe cover, and each group of clamping devices includes a plurality of insertion holes along the longitudinal arrangement of shoe cover and the clamping assembly that cooperates with insertion hole, and the clamping assembly is slidably arranged above insertion hole, and two connecting devices all include connecting head and connecting assembly, wherein, one end of connecting assembly is fixedly connected with connecting head, and the other end can selectively insert any insertion hole and form the clamping fixed with corresponding clamping assembly. Therefore, through double shoe cover clamping linkage structure and adjustable restraint belt, the coherent mechanical constraint system from foot to lower limb is formed, and the collaborative correction to foot inversion and hip external rotation is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to an adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover. Background Technology

[0002] Foot and ankle deformities and lower limb rotation disorders are common orthopedic conditions, mainly manifesting as foot inversion, foot eversion, and hip external rotation. These deformities not only affect the patient's gait and appearance but can also lead to secondary injuries to the knee, hip, and other joints, severely impacting the patient's quality of life.

[0003] Currently, commonly used non-surgical corrective methods in clinical practice mainly rely on orthotic shoes or braces. Traditional orthotic shoes are usually designed for a single foot, correcting pronation through structures such as wedge-shaped insoles and arch supports, but they cannot provide coordinated restraint for bilateral foot movement. When patients walk, unilateral corrective force may lead to compensatory external rotation of the contralateral lower limb, resulting in a problem of "correcting one side, but losing balance on the other." In addition, the adjustment methods of existing orthotics are relatively simple, mostly relying on Velcro and straps for tightness adjustment, lacking precise mechanical control and making it difficult to dynamically optimize the corrective force according to the degree of deformity and the stage of rehabilitation.

[0004] In terms of lower limb rotation control, traditional hip external rotation correction devices are mostly independent braces that need to be used in conjunction with lumbar or thigh fixation structures, resulting in problems such as cumbersome wearing, heavy weight, and poor comfort. These devices are independent of orthotic shoes and cannot form a continuous force transmission path from the foot to the hip, leading to low correction efficiency.

[0005] In the existing technology, there is a lack of an integrated orthotic device that can achieve multi-dimensional constraint through a bipedal linkage mechanism and has an adjustable structure to address the combined correction needs of foot inversion and hip external rotation. How to design an orthotic device that can restrict foot inversion through the linkage of two shoe covers, inhibit hip external rotation through a mechanical transmission path, and meet personalized adjustment needs has become an urgent technical problem to be solved in this field. Utility Model Content

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, the purpose of this utility model is to propose an adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover. Through the linkage structure of the double shoe cover and the adjustable restraint strap, a continuous mechanical restraint system from the foot to the lower limb is formed to achieve synergistic correction of foot inversion and hip external rotation.

[0008] To achieve the above objectives, this utility model proposes an adjustable, linked anti-inversion and limiting hip external rotation orthotic shoe cover, comprising a first shoe cover, a second shoe cover, two sets of locking devices, a restraint strap, and two connecting devices. The first shoe cover and the second shoe cover are respectively positioned for the patient's left and right feet. The two sets of symmetrically arranged locking devices are fixedly mounted on the outer ends of the first and second shoe covers. Each locking device includes multiple insertion holes arranged longitudinally along the shoe cover and locking components that mate with the insertion holes. The locking components are slidably mounted on the connecting devices. Above the insertion hole; both of the connecting devices include a connector and a connecting component, wherein one end of the connecting component is fixedly connected to the connector, and the other end can be selectively inserted into either of the insertion holes and form a snap-fit ​​with the corresponding snap-fit ​​component; the restraint strap is connected to the two connectors at both ends, and the extension path of the restraint strap extends from the upper part of the first shoe cover through the instep area to the sole area of ​​the second shoe cover, and is inserted and fixed upward through the sole area to the corresponding side insertion hole to form a mechanical restraint system that restricts foot inversion and hip external rotation.

[0009] This utility model's adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover, through a double shoe cover snap-fit ​​linkage structure and adjustable restraint strap, forms a continuous mechanical restraint system from the foot to the lower limb, achieving coordinated correction of foot inversion and hip external rotation.

[0010] In addition, the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover proposed in the application may also have the following additional technical features:

[0011] Specifically, the snap-fit ​​assembly includes a sliding groove, a sliding rod, a contact bevel, a spring, and a top block. The sliding groove is disposed above the insertion hole. The sliding rod is slidably disposed within the sliding groove. The contact bevel is fixedly connected to the bottom of the sliding rod and partially extends into the insertion hole. The spring is sleeved on the outer wall of the sliding rod, with its two ends abutting against the inner wall of the sliding groove and the contact bevel, respectively. The top block is disposed at the outer end of the sliding groove and fixedly connected to the top of the sliding rod.

[0012] Specifically, the connecting assembly includes a connecting rod, an arc block, a release block, and a connecting spring. The connecting rod is fixedly connected to one end of the connecting head. The arc block is fixedly disposed at the other end of the connecting rod, and its outer surface forms an inclined surface fit with the contact inclined block of the snap-fit ​​assembly. The release block is slidably disposed on the connecting rod. The two ends of the connecting spring are fixedly connected to the connecting head and the release block, respectively, for providing the reset force of the release block.

[0013] Specifically, the insertion holes are arranged in a linear array along the outer edge of the shoe cover, and the spacing between adjacent insertion holes is 1-3cm to accommodate the lower limb size adjustment needs of different patients.

[0014] Specifically, the restraint strap is equipped with a length adjustment component.

[0015] The advantages of this invention compared to existing technologies are as follows:

[0016] (1) By connecting the left and right shoe covers diagonally across the instep and sole with a binding strap, the two feet restrain each other when walking, simultaneously limiting inversion and external rotation, thus avoiding compensation problems caused by unilateral correction.

[0017] (2) The multi-position insertion hole of the snap-fit ​​device, together with the length adjustment component of the restraint belt, can finely adjust the restraint force according to the size and degree of deformity of the patient's lower limbs, so as to achieve personalized treatment.

[0018] (3) Integrating foot orthotics and lower limb rotation control into the shoe cover system eliminates the need for additional braces, improving wearing comfort and ease of use.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A perspective view of an adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to an embodiment of the present invention;

[0022] Figure 2 A perspective view of an adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to another embodiment of the present invention;

[0023] Figure 3 A perspective view of an adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to another embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to another embodiment of the present invention;

[0026] Figure 6 This is a schematic front view of the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover according to an embodiment of the present invention.

[0027] As shown in the figure: 1. First shoe cover; 2. Second shoe cover; 3. Clip-on device; 4. Restraint strap; 5. Connecting device; 31. Insertion hole; 32. Clip-on assembly; 51. Connector head; 52. Connecting assembly; 321. Sliding groove; 322. Sliding rod; 323. Contact inclined block; 324. Spring; 325. Top block; 521. Connecting rod; 522. Arc block; 523. Unlocking block; 524. Connecting spring. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0029] The adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover of this utility model embodiment is described below with reference to the accompanying drawings.

[0030] like Figures 1-6 As shown, the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover of this utility model embodiment may include a first shoe cover 1, a second shoe cover 2, two sets of snap-fit ​​devices 3, a restraint strap 4, and two connecting devices 5.

[0031] It is understood that the orthotic shoe cover includes a first shoe cover 1 and a second shoe cover 2, which are symmetrically arranged to fit the patient's left and right feet, respectively. Two sets of locking devices 3 are fixed to the outer ends (i.e., the outer edge of the foot) of the first shoe cover 1 and the second shoe cover 2, respectively. Each set of locking devices 3 includes multiple insertion holes 31 arranged along the longitudinal direction of the shoe cover (i.e., the length direction of the shoe), and a locking component 32 located above the insertion holes 31. The locking component 32 can slide along the radial direction of the insertion holes 31.

[0032] The two connecting devices 5 have the same structure, both including a connector 51 and a connecting component 52. The connector 51 is a flat structure used to connect with the restraint strap 4; the connecting component 52 is a rod-shaped structure, with one end fixedly connected to the connector 51 and the other end being a plug-in end that can be inserted into the plug-in hole 31 and snapped into the snap-fit ​​component 32.

[0033] The restraint strap 4 is an elastic band-shaped component, with both ends fixedly connected to two connectors 51 by sewing or buckles. Its main extension path is as follows: starting from the upper part (outer area of ​​the instep) of the first shoe cover 1, crossing the instep area between the two feet to the outer area of ​​the sole of the second shoe cover 2, and then folding back upward from the outer side of the sole. It is then inserted and fixed to the corresponding insertion hole 31 through the connecting device 5 of the second shoe cover 2 to form a closed-loop restraint structure.

[0034] The working principle of the snap-fit ​​device 3 and the connecting device 5

[0035] The insertion holes 31 are arranged in a linear array along the outer edge of the shoe cover. When the connecting component 52 is inserted into the insertion hole 31, the locking component 32 slides down and locks the top of the connecting component 52 to achieve fixation. When disassembly is required, the locking component 32 can be pushed inward again to release the locking state.

[0036] Mechanical constraint path of restraint belt 4

[0037] The patient first puts on the first shoe cover 1 and the second shoe cover 2 respectively, and secures the foot with the shoelaces that come with the shoe covers;

[0038] Insert the connecting component 52 of the left connecting device 5 into a certain insertion hole 31 on the outside of the first shoe cover 1, and fix it by the snap-fit ​​component 32;

[0039] Stretch the restraint strap 4 so that it extends from the outside of the instep of the first shoe cover 1 to the outside of the sole of the second shoe cover 2. Then insert the connecting component 52 of the right connecting device 5 into the corresponding insertion hole 31 on the outside of the second shoe cover 2 and fix it by the snap-fit ​​component 32 to form a restraint path of "slanted straddling feet".

[0040] When the patient walks, if one foot shows a tendency to invert (e.g., left foot inversion), the outer side of the instep of the first shoe cover 1 will tilt inward, increasing the tension on the left side of the restraint strap 4. Since the right end of the restraint strap 4 is fixed to the outer side of the sole of the second shoe cover 2, the increased tension will be transmitted to the second shoe cover 2 through the connecting device 5, forming an oblique pulling force from the instep of the left foot to the sole of the right foot. This pulling force, on the one hand, restricts the inversion of the left foot through the fixing point of the snap-fit ​​device 3 of the first shoe cover 1, and on the other hand, generates an outward rotation reaction torque on the right lower limb through the fixing point of the right sole, inhibiting hip external rotation and achieving "bi-foot linkage restraint".

[0041] Regulation mechanisms and functional expansion

[0042] Adjustment of the position of the connector 31:

[0043] By changing the position of the insertion hole 31 into which the connecting component 52 is inserted, the height of the tension application point of the restraint strap 4 can be altered. For example, when inserted into the upper insertion hole 31, the tension direction of the restraint strap 4 is more biased towards the dorsum of the foot, which is suitable for patients with mild inversion; when inserted into the lower insertion hole 31, the tension direction is closer to the sole of the foot, which can provide stronger inversion restraint force and is suitable for patients with severe deformities.

[0044] In one embodiment of this utility model, such as Figures 1-6 As shown, the snap-fit ​​assembly 32 includes a sliding groove 321, a sliding rod 322, a contact ramp 323, a spring 324, and a top block 325.

[0045] It can be understood that the sliding groove 321 is a rectangular groove structure, which is fixedly installed on the shell at the outer end of the shoe cover. The opening direction is perpendicular to the axis of the insertion hole 31 (i.e., horizontal direction), and its bottom is connected to the top of the insertion hole 31 to form the movable space of the contact inclined block 323.

[0046] The sliding rod 322 is a cylindrical rod that can slide along the length of the sliding groove 321, and its axis is perpendicular to the axis of the insertion hole 31. One end of the sliding rod 322 passes through the side wall of the sliding groove 321 and extends to the outside to connect with the top block 325.

[0047] The contact wedge 323 is a wedge-shaped block with a beveled bottom surface. It is fixedly connected to the bottom end of the sliding rod 322, and part of it (about 1 / 3 of its volume) extends into the insertion hole 31 to mate with the insertion end of the connecting component 52.

[0048] Spring 324 is a compression spring, sleeved on the outer wall of sliding rod 322, located inside sliding groove 321. One end of spring 324 abuts against the inner wall of sliding groove 321 (the side near insertion hole 31), and the other end abuts against the top surface of contact inclined block 323, used to provide reset elastic force for contact inclined block 323.

[0049] The top block 325 is a circular operating block, which is fixedly installed at the outer end of the sliding groove 321 (on the side away from the insertion hole 31) and is fixedly connected to the top (exposed end) of the sliding rod 322.

[0050] Workflow of the card connector 32

[0051] 1. Initial state (not connected)

[0052] When the spring 324 is in its natural extended state, it pushes the contact wedge 323 toward the insertion hole 31, so that the bottom slope of the contact wedge 323 is located at the top entrance of the insertion hole 31, partially blocking the insertion hole 31. At this time, the exposed end of the sliding rod 322 is limited by the top block 325, and the contact wedge 323 does not completely close the insertion hole 31, allowing the connecting assembly 52 to be inserted.

[0053] 2. Insertion and snap-fit ​​process of connecting component 52

[0054] When the connector end of the connecting component 52 is vertically inserted into the connector hole 31:

[0055] The outer surface of the plug end first contacts the bottom inclined surface of the contacting inclined block 323, applying a horizontal thrust to the right, pushing the sliding rod 322 to move towards the outer end of the sliding groove 321, compressing the spring 324;

[0056] As the plug-in end penetrates deeper into the plug-in hole 31, the contact wedge 323 gradually exits the plug-in hole 31 until the limiting structure (such as the boss) of the plug-in end reaches the bottom of the plug-in hole 31.

[0057] At this time, the reset force of the spring 324 pushes the contact inclined block 323 to move to the left, so that the bottom inclined surface of the contact inclined block 323 locks the limiting structure of the plug end, forming a locking and fixing.

[0058] In one embodiment of this utility model, such as Figures 1-6 As shown, the connecting assembly 52 includes a connecting rod 521, an arc block 522, an unlocking block 523, and a connecting spring 524.

[0059] It can be understood that the connecting rod 521 is a rigid cylindrical rod, one end of which is integrally formed with the connector 51 by injection molding, and the other end is fixedly connected to the arc block 522, forming a rigid integral structure of "connector-connecting rod-arc block".

[0060] The arc block 522 is fixed to the free end of the connecting rod 521. Its outer surface is an arc surface. This arc surface is precisely matched with the inclined surface of the contact block 323 of the snap-fit ​​assembly 32 to form an inclined surface guide structure.

[0061] The unlocking block 523 is a hollow cylindrical slider with a straight groove on its inner wall that matches the outer wall of the connecting rod 521. It can slide without rotation along the axis of the connecting rod 521 (i.e., the depth direction of the insertion hole) and maintains a distance from the front end face of the arc block 522 in the initial state.

[0062] The connecting spring 524 is sleeved on the connecting rod 521, and its two ends are fixedly connected to the inner side of the connecting head 51 and the near end face of the release block 523, respectively. In its natural state, it applies an outward restoring force to the release block 523.

[0063] Complete workflow:

[0064] 1. Snap-in process (active insertion)

[0065] The user holds the connector 51 and aligns the arc block 522 with the insertion hole 31 and inserts it vertically.

[0066] The arc surface of the arc block 522 first contacts the inclined surface of the contact inclined block 323. The guiding effect of the inclined surface causes the contact inclined block 323 to slide towards the outer end of the sliding groove 321, compressing the spring 324 of the snap-fit ​​assembly.

[0067] When the arc block 522 is fully inserted into the insertion hole 31, the contact inclined block 323 falls back under the restoring force of the spring 324, and the inclined surface locks the bottom of the arc of the arc block 522, completing the locking.

[0068] 2. Unlocking process

[0069] Step 1: Push connector 51 forward to push release block 523 into contact with the inclined surface.

[0070] The user presses their thumb against the connector 51 and pushes it towards the insertion hole 31 (i.e., forward), causing the connecting rod 521 to drive the arc block 522 to move synchronously into the hole.

[0071] Step 2: Unlock block 523 presses against the inclined plane to release the latch.

[0072] The front end face (flat end face) of the release block 523 contacts the bottom of the inclined surface of the contact block 323, forming a horizontal support force;

[0073] Continue pushing the connector 51 forward, and the release block 523 will push the contact bevel block 323 completely into the sliding groove 321, causing it to move out of the locking range of the arc block 522 (at this time, the contact bevel block 323 is completely out of the insertion hole 31).

[0074] Step 3: Pull connector 51 outwards to separate arc block 522

[0075] Keeping the release block 523 in the position of pressing against the contact ramp 323, the user changes from pushing to pulling, and pulls the connector 51 outward;

[0076] The connecting rod 521 drives the arc block 522 to move out of the hole until the front end of the arc block 522 is completely pressed against the rear end of the release block 523. At this time, the arc block 522 is completely disengaged from the insertion hole 31, and the locking state is released.

[0077] Step 4: Reset to initial state

[0078] When the connector 51 is released, the reset pull of the connecting spring 524 causes the release block 523 to slide outward along the connecting rod 521 and return to its initial position.

[0079] The spring 324 of the snap-fit ​​assembly resets synchronously, pushing the contact wedge 323 back to the top of the insertion hole 31, preparing for the next snap-fit.

[0080] In one embodiment of this utility model, such as Figures 1-6 As shown, the insertion holes 31 are arranged in a linear array along the outer edge of the shoe cover, and the spacing between adjacent insertion holes 31 is 1-3cm to accommodate the lower limb size adjustment needs of different patients.

[0081] It is understandable that for those with severe foot inversion or hip external rotation, a lower insertion hole should be selected to increase the tension arm of the restraint strap 4; for those with milder symptoms, a higher insertion hole should be selected to reduce the tension.

[0082] Initial treatment involves using a lower aperture with greater tension, gradually switching to a higher aperture with less tension as the condition improves, thus achieving dynamic orthodontic treatment.

[0083] The higher the insertion hole 31 is (closer to the dorsum of the foot), the closer the tension point of the restraint strap 4 is to the top of the ankle joint, resulting in a smaller inversion limiting torque, which is suitable for mild correction;

[0084] The lower the insertion hole 31 is (closer to the sole of the foot), the more inclined the direction of the tension of the restraint strap 4 is, the greater the support force on the outer side of the sole of the foot, and the stronger the inversion resistance and hip external rotation inhibition force can be provided.

[0085] In one embodiment of this utility model, such as Figures 1-6 As shown, the restraint strap 4 is equipped with a length adjustment component.

[0086] It is understood that the restraint strap (4) is an elastic strip-shaped component. The main body is made of medical-grade elastic fiber (spandex blended material), which is flat and 3-5cm wide. Both ends are fixedly connected to the connector 51. Its length adjustment function is realized by the length adjustment component set in the middle or both ends.

[0087] Specifically, in actual implementation, the complete process of wearing, adjusting, and using orthotic shoe covers is as follows:

[0088] I. Wearing and Initial Fixation

[0089] The patient puts their left and right feet into the first shoe cover 1 and the second shoe cover 2 respectively, and fixes the instep of the foot with the shoe cover's own laces to ensure that the shoe cover fits the foot tightly. The outer ends (outer edges of the foot) of the first shoe cover 1 and the second shoe cover 2 are aligned with the position below the lateral malleolus of the lower limb.

[0090] Take the left connecting device 5 and align the arc block 522 of the connecting component 52 with a certain insertion hole 31 on the outside of the first shoe cover 1, and insert it vertically into the insertion hole 31. At this time, the arc surface of the arc block 522 pushes the contact inclined block 323 of the locking component 32 to slide outward along the sliding groove 321, compressing the spring 324. When the arc block 522 is fully inserted into the bottom of the insertion hole 31, the contact inclined block 323 falls back under the action of the spring 324's restoring force, and the inclined surface locks the arc block 522, completing the left-side fixation.

[0091] Stretch the restraint strap 4 so that it extends from the outside of the instep of the first shoe cover 1 to the outside of the sole of the second shoe cover 2. Take the right connecting device 5 and insert the connecting component 52 into the corresponding insertion hole 31 on the outside of the second shoe cover 2. Repeat the above snapping steps so that the restraint strap 4 forms a diagonal restraint path of "left instep → right sole".

[0092] II. Personalized Adjustment Process

[0093] If the patient has severe foot inversion, select the low insertion hole 31 on the outer side of the second shoe cover 2, which is close to the sole of the foot, to increase the pulling force of the restraint strap 4 on the outer side of the sole of the foot; if the symptoms are mild, select the high hole, which is far from the dorsum of the foot, to reduce the pulling torque.

[0094] During adjustment, pull the connector 51 outward to make the release block 523 press against the contact inclined block 323, release the snap-fit, pull out the connector 52, and replace it with the target insertion hole 31 to re-snap it.

[0095] III. Linkage and constraint effects during walking

[0096] If the patient's left foot shows a tendency to turn inward when standing or walking:

[0097] The outer side of the instep of the first shoe cover 1 tilts inward, increasing the tension on the left side of the restraint strap 4;

[0098] Tension is transmitted to connecting rod 521 through left connector 51, and then to snap-fit ​​assembly 32 of first shoe cover 1 through arc block 522. Contact inclined block 323 presses against arc block 522, applying reaction torque to left foot to restrict inversion.

[0099] At the same time, the right side of the restraint strap 4 is fixed to the outer side of the sole of the second shoe cover 2. The increased tension generates an outward pulling force on the sole of the right foot through the right connecting device 5, forming a reaction torque to inhibit the external rotation of the right lower limb, thus realizing the linkage restraint of both feet.

[0100] IV. Unlocking and Disassembly

[0101] The user presses their thumb against the right connector 51 and pushes it forward toward the insertion hole 31 of the second shoe cover 2. The connecting rod 521 drives the arc block 522 to move synchronously. The front end of the release block 523 presses against the bottom of the inclined surface of the contact inclined block 323, pushing it completely into the sliding groove 321 and releasing the jamming of the arc block 522.

[0102] While maintaining the pushing state, pull the connector 51 outward until the arc block 522 and the release block 523 are tightly attached and completely disengaged from the insertion hole 31. At this time, the connecting spring 524 pulls the release block 523 back to the middle of the connecting rod 521.

[0103] Loosen the connector 51, and the spring 324 of the snap-fit ​​assembly 32 pushes the contact wedge 323 back to the top of the insertion hole 31. The restraint strap 4 returns to a relaxed state, completing the disassembly and preparing for the next use.

[0104] In summary, the adjustable linkage anti-inversion limiting hip external rotation orthotic shoe cover of this utility model embodiment forms a continuous mechanical constraint system from the foot to the lower limb through the double shoe cover snap-fit ​​linkage structure and adjustable restraint strap, thereby achieving coordinated correction of foot inversion and hip external rotation.

[0105] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0107] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjustable linkage anti-pronation limiting hip-external-rotation orthopedic shoe cover, characterized in that, It includes a first shoe cover (1), a second shoe cover (2), two sets of snap-fit ​​devices (3), a restraint strap (4), and two connecting devices (5), wherein, The first shoe cover (1) and the second shoe cover (2) are respectively set for the left and right feet of the patient; Two sets of symmetrically arranged snap-fit ​​devices (3) are respectively fixedly arranged on the outer ends of the first shoe cover (1) and the second shoe cover (2). Each set of snap-fit ​​devices (3) includes a plurality of insertion holes (31) arranged along the longitudinal direction of the shoe cover and a snap-fit ​​component (32) that cooperates with the insertion holes (31). The snap-fit ​​component (32) is slidably arranged above the insertion holes (31). Both of the aforementioned connecting devices (5) include a connector (51) and a connecting assembly (52), wherein, One end of the connecting component (52) is fixedly connected to the connector (51), and the other end can be selectively inserted into any of the insertion holes (31) and form a snap-fit ​​with the corresponding snap-fit ​​component (32); The restraint strap (4) is connected to two connectors (51) at both ends. The extension path of the restraint strap (4) extends from the upper part of the first shoe cover (1) through the instep area to the sole area of ​​the second shoe cover (2), and is inserted and fixed to the corresponding side insertion hole (31) through the sole area to form a mechanical restraint system that restricts foot inversion and hip external rotation.

2. The adjustable linked anti-pronation limiting hip-external-rotation orthopedic shoe cover according to claim 1, wherein, The snap-fit ​​assembly (32) includes a sliding groove (321), a sliding rod (322), a contact ramp (323), a spring (324), and a top block (325), wherein, The sliding groove (321) is disposed above the insertion hole (31); The sliding rod (322) is slidably disposed within the sliding groove (321); The contacting inclined block (323) is fixedly connected to the bottom of the sliding rod (322) and partially extends into the insertion hole (31); The spring (324) is sleeved on the outer wall of the sliding rod (322), and its two ends abut against the inner wall of the sliding groove (321) and the contacting inclined block (323), respectively; The top block (325) is disposed at the outer end of the sliding groove (321) and is fixedly connected to the top of the sliding rod (322).

3. The adjustable linked anti-pronation limiting hip-external-rotation orthopedic shoe cover according to claim 1 or 2, characterized in that, The connecting assembly (52) includes a connecting rod (521), an arc block (522), a release block (523), and a connecting spring (524), wherein, The connecting rod (521) is fixedly connected to one end of the connector (51); The arc block (522) is fixedly disposed at the other end of the connecting rod (521), and its outer surface forms an inclined surface fit with the contact inclined block (323) of the snap-fit ​​assembly (32); The unlocking block (523) is slidably mounted on the connecting rod (521); The two ends of the connecting spring (524) are fixedly connected to the connecting head (51) and the unlocking block (523) respectively, and are used to provide the restoring force of the unlocking block (523).

4. The adjustable linked anti-pronation limiting hip-external-rotation orthopedic shoe wrap according to claim 1, wherein, The insertion holes (31) are arranged in a linear array along the outer edge of the shoe cover, and the spacing between adjacent insertion holes (31) is 1-3cm to accommodate the lower limb size adjustment needs of different patients.

5. The adjustable linked anti-pronation limiting hip-external-rotation orthopedic shoe wrap according to claim 1, wherein, The restraint strap (4) is equipped with a length adjustment component.

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