Subtalar joint fixing device

Abstract

The utility model provides a subtalar joint fixing device, and belongs to the technical field of medical instruments. The subtalar joint fixing device comprises a foot support, and the foot support is arranged on the heel portion of a wearer in a sleeving mode. The foot support comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are arranged at the top ends of the two sides of the bottom plate, the first side plate and the second side plate are oppositely bent inwards, and the top ends of the first side plate and the second side plate are sunken towards the bottom plate to form grooves. The first side plate and the second side plate are attached to the ankle of a wearer. The subtalar joint fixing device is simple in structure, good in adaptability and high in safety, the front foot activity space can be fully opened, the wearing discomfort is reduced, and a user can exercise by himself to remodel muscle ligaments and exert force during walking.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a subtalar joint fixation device. Background Art

[0002] Flexible flatfoot occurs in 5% of children and adults. Its primary pathological feature is excessive eversion of the subtalar joint, leading to a collapsed arch. This causes foot pain and fatigue after walking. Currently, a common clinical treatment is subtalar arthroereisis, which involves inserting a subtalar arthroereisis device into the tarsal sinus to limit excessive eversion of the subtalar joint and correct the posterior foot eversion and collapsed arch that result from flatfoot. During treatment, an incision is made in the foot under local anesthesia, and an appropriately sized subtalar arthroereisis device is implanted. The skin is then sutured after the procedure.

[0003] However, surgical treatment will damage the human body's soft tissues. At the same time, the incidence of complications such as postoperative incision infection and poor healing is high. Patients recover slowly, have a poor experience, and the treatment effect is not ideal.

[0004] To this end, a subtalar joint fixation device is provided to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a subtalar joint fixation device to reduce subtalar joint inversion, fully open up the forefoot activity space, reduce wearing discomfort, and enable users to self-exercise to reshape muscles and ligaments and exert force while walking.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0007] A subtalar joint fixation device includes a foot support, the foot support being mounted on the heel of a wearer;

[0008] The foot support includes a bottom plate and a first side plate and a second side plate arranged at the top ends of both sides of the bottom plate, the first side plate and the second side plate are bent inward relative to each other, and the top ends of the first side plate and the second side plate are respectively recessed toward the bottom plate to form grooves;

[0009] The first side panel and the second side panel fit the ankles of the wearer.

[0010] In an exemplary embodiment of the present invention, the first side panel fits the inner side of the ankle, and the second side panel fits the outer side of the ankle;

[0011] The height of the first side panel is greater than the height of the second side panel.

[0012] In an exemplary embodiment of the present invention, the distance between the first side panel and the second side panel first increases and then decreases in the direction from the heel to the sole.

[0013] In an exemplary embodiment of the present invention, the side plate includes a first bending portion, a second bending portion, and a third bending portion sequentially connected along a direction from the heel to the sole of the foot, and the groove is located at the top end of the second bending portion;

[0014] The heights of the first bending portion, the second bending portion, and the third bending portion first decrease and then increase in the direction from the heel to the sole.

[0015] In an exemplary embodiment of the present invention, the top ends of the two first bending portions are bent outwards relative to each other;

[0016] The distance between the two first bent portions first decreases and then increases in a direction away from the bottom plate.

[0017] In an exemplary embodiment of the present invention, the thickness of the bottom plate gradually decreases along the direction from the first side plate to the second side plate.

[0018] In an exemplary embodiment of the present invention, the foot support is made of flexible TPU.

[0019] In an exemplary embodiment of the present invention, an elastic fixing belt is provided on the top of the foot support, and the elastic fixing belt is used to fix the foot support to the heel of the wearer.

[0020] In an exemplary embodiment of the present invention, one end of the elastic fixing band is fixed to the top end of one of the third bent portions, and a Velcro is provided on one side of the elastic fixing band;

[0021] A through slot is provided on the upper portion of the first bending portion, and the other end of the elastic fixing belt passes around the back of the wearer's foot and passes through the through slots on the first bending portion on the opposite side and the same side in turn, so that the other end of the elastic fixing belt is fixed to the first bending portion on the same side through the Velcro.

[0022] In an exemplary embodiment of the present invention, a foot pad is provided on the top of the base plate, and the foot pad fits the sole of the wearer.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a subtalar joint fixation device. The foot support is made of flexible and slightly deformable TPU material accurately processed by 3D printing technology. The foot support is worn on the heel of the user and fixed to the ankle by an elastic fixing strap, so as to reduce the activity of the subtalar joint and reduce the tension of the posterior cervical muscles, thereby achieving a correction effect. At the same time, it can provide better adaptability, fully open the forefoot activity space, reduce wearing discomfort, reduce the eversion of the subtalar joint, and achieve the user's self-training to reshape muscles and ligaments and walking force problems, with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 This is a schematic structural diagram of a subtalar joint fixation device in one embodiment of the present invention;

[0027] Figure 2 This is a structural diagram of a foot support in one embodiment of the present invention;

[0028] Figure 3 This is a top view of a foot rest in one embodiment of the present invention;

[0029] Figure 4 This is a front view of a foot rest in one embodiment of the present invention;

[0030] Figure 5 This is a left side view of the foot support in one embodiment of the present invention;

[0031] Figure 6 This is a right side view of the foot support in one embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Foot support; 101. Bottom plate; 102. First side plate; 103. Second side plate; 104. Groove; 105. First bending portion; 106. Second bending portion; 107. Third bending portion; 2. Elastic fixing belt; 3. Velcro; 4. Through groove; 5. Foot pad. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present invention and are not necessarily drawn to scale.

[0035] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It should be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, it may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through the other structure.

[0036] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0037] The present invention provides a subtalar joint fixation device. Figure 1 and Figure 2 , including a foot support 1, which is mounted on the heel of the wearer; the foot support 1 includes a base plate 101 and a first side plate 102 and a second side plate 103 arranged at the top ends of both sides of the base plate 101, the first side plate 102 and the second side plate 103 are bent inward relative to each other, and the top ends of the first side plate 102 and the second side plate 103 are respectively recessed toward the base plate 101 to form grooves 104; the first side plate 102 and the second side plate 103 fit the wearer's ankles.

[0038] In the embodiment of the utility model, the subastragalar joint fixing device mainly comprises a foot support 1 worn on the heel of the wearer, the foot support 1 is composed of a bottom plate 101 and first and second side plates 102 and 103 arranged at the top of the two sides of the bottom plate 101, the first and second side plates 102 and 103 are bent inward relative to each other and are in contact with the ankle of the wearer, recesses 104 are formed at the top of the first and second side plates 102 and 103 and are recessed towards the bottom plate 101, the first and second side plates 102 and 103 are in contact with the ankle by the recesses 104, the ankle of the wearer is fixed, the subastragalar joint movement is reduced, the tension of the posterior cervical muscle is reduced, and the subastragalar joint is corrected.

[0039] Compared with the existing subastragalar joint braking technique, the subastragalar joint fixing device has the advantages of simple structure, reduced subastragalar joint movement, reduced tension of the posterior cervical muscle, correction effect, good adaptability, sufficient forefoot movement space, reduced wearing discomfort, reduced subastragalar joint eversion, user self-exercise muscle ligament remodeling and walking power problems, and high safety.

[0040] In one embodiment of the utility model, referring to Figure 2 and Figure 5 , the first side plate 102 is in contact with the inner side of the ankle, the second side plate 103 is in contact with the outer side of the ankle, and the height of the first side plate 102 is greater than that of the second side plate 103. In this way, the support capacity of the first side plate 102 can be improved, the inner side of the ankle can be supported by the first side plate 102, the subastragalar joint eversion can be limited, and the subastragalar joint can always be in the neutral position.

[0041] In one embodiment of the utility model, referring to Figure 3 , the distance between the first and second side plates 102 and 103 increases first and then decreases along the direction from the heel to the sole. In this way, the foot support 1 can be adapted to the foot of the wearer, and the discomfort of the wearer can be reduced.

[0042] In one embodiment of the utility model, referring to Figure 4 , the side plate comprises first, second and third bending parts 105, 106 and 107 connected in sequence along the direction from the heel to the sole, and the recess 104 is located at the top of the second bending part 106; the height of the first, second and third bending parts 105, 106 and 107 decreases first and then increases along the direction from the heel to the sole. In this way, the first and second side plates 102 and 103 can be in contact with the ankle by the recess 104, better contact between the first and second side plates 102 and 103 can be achieved, the subastragalar joint movement can be reduced, and good adaptability can be provided.

[0043] Optionally, the lowest point of the groove 104 on the first side panel 102 is located at one end of the first bending portion 105 close to the second bending portion 106, so as to fit conveniently with the inner side of the wearer's ankle.

[0044] Optionally, the lowest point of the groove 104 on the second side panel 103 is located in the middle of the second bending portion 106, so as to fit conveniently with the outer side of the wearer's ankle.

[0045] Optionally, the lowest point of the groove 104 on the first side plate 102 and the lowest point of the groove 104 on the second side plate 103 are at different heights.

[0046] In one embodiment of the present invention, see Figure 5 The top ends of the two first bent portions 105 are bent outward relative to each other; the distance between the two first bent portions 105 first decreases and then increases in the direction away from the base plate 101. In this way, the first side plate 102 and the second side plate 103 can fit the back of the wearer's heel, reducing tension in the posterior cervical muscles and improving the corrective effect of the foot support 1.

[0047] Optionally, the inward bending angle of the first bending portion 105 on the first side plate 102 is greater than the inward bending angle of the first bending portion 105 on the second side plate 103 .

[0048] In one embodiment of the present invention, see Figure 6 The thickness of the bottom plate 101 gradually decreases from the first side plate 102 to the second side plate 103. In this way, the bottom plate 101 can fit the sole of the foot and support the sole of the foot, so that the calcaneocuboid joint and the talonavicular joint are in the correct force line, making it easier for the wearer to walk and exert force.

[0049] In one embodiment of the present invention, the material of the foot support 1 is flexible TPU. In this way, the foot support 1 can be slightly deformed, providing better adaptability for the wearer and reducing wearing discomfort.

[0050] In one embodiment of the present invention, the foot support 1 is manufactured using 3D printing technology, thereby preventing errors from occurring during the production process and affecting the use of the product.

[0051] Optionally, the thickness of the line layer during the 3D printing process is 0.4 mm. In this way, the processing accuracy of the foot support 1 can be improved, and the use of the foot support 1 can be facilitated.

[0052] In one embodiment of the present invention, see Figure 1 The top of the foot support 1 is provided with an elastic fixing belt 2, which is used to fix the foot support 1 to the heel of the wearer. In this way, the foot support 1 can be prevented from falling and the wearer can walk conveniently.

[0053] In an embodiment of the utility model, refer to Figure 1 One end of the elastic fixing band 2 is fixed to the top end of one of the third bending parts 107, and a magic tape 3 is arranged on one side of the elastic fixing band 2; a through slot 4 is formed in the upper part of the first bending part 105, the other end of the elastic fixing band 2 passes behind the instep of the wearer, and sequentially passes through the through slot 4 on the opposite first bending part 105 and the same side first bending part 105, so as to fix the other end of the elastic fixing band 2 on the same side first bending part 105 through the magic tape 3. In this way, the foot support 1 can be fixed on the heel part of the wearer.

[0054] In an example, one end of the elastic fixing band 2 is fixed to the top end of the third bending part 107 on the first side plate 102, the other end of the elastic fixing band 2 passes behind the instep of the wearer, passes through the through slot 4 on the first bending part 105 on the second side plate 103, passes behind the upper part of the heel of the wearer, passes through the through slot 4 on the first bending part 105 on the first side plate 102, and the other end of the elastic fixing band 2 is fixed to the first bending part 105 on the first side plate 102 through the magic tape 3, so as to fix the foot support 1 on the heel part of the wearer.

[0055] Optionally, the magic tape 3 includes a female tape and a male tape, the female tape is arranged at the free end of one side of the elastic fixing band 2, and the male tape is arranged at the other end of the same side of the elastic fixing band 2.

[0056] In an embodiment of the utility model, refer to Figure 1 The bottom plate 101 is provided with a foot pad 5 at the top end, and the foot pad 5 is attached to the sole of the wearer.

[0057] Optionally, the material of the foot pad 5 is anti-skid rubber. In this way, the wearer can be prevented from slipping and falling down when walking, and the wearer can be prevented from being injured again.

[0058] In an embodiment of the utility model, the production process of the talocrural joint fixing device is briefly described as follows:

[0059] First, infrared foot scanning, pressure matching technology, and medical gold standard X-rays are used to jointly determine the position of the subtalar joint. Based on different people's 3D scanning models, foot pressure matching data, weight-bearing X-rays of the foot in the anteroposterior and lateral positions, and weight-bearing X-rays of the calcaneus, after confirming that the bone force line of the foot is consistent with the appearance force line, 3D modeling software is used to perform millimeter-level precise design of the foot support 1. The design limits excessive eversion of the subtalar joint, so that the subtalar joint is always in the neutral position, and at the same time limits the calcaneocuboid joint and talonavicular joint to be in the correct force line, opens the metatarsal joint, and enables the metatarsal joint to be close to the ground normally when the heel force line is correct, thereby reducing the activity of the subtalar joint and the tension of the posterior cervical muscles to achieve the correction effect; foot support 1 After the modeling is completed, 3D printing technology is used for precise processing to complete the production of the foot support 1 to prevent errors in the production process that affect the use of the product; the foot support 1 is 3D printed using flexible and slightly deformable TPU material, which takes into account the effect while providing better adaptability and reducing wearing discomfort. At the same time, it fully opens the forefoot activity space to achieve self-exercise to reshape muscles and ligaments and walking force problems, and provides safety during the correction process; after the foot support 1 is printed, an elastic fixing belt 2 from the navicular bone to the outside of the Achilles tendon to the inside of the Achilles tendon is installed on the top of the foot support 1 to increase mechanical feedback and reduce the probability of ankle sprains when the subtalar joint is inverted and the lateral muscle strength is lost. A non-slip rubber foot pad 5 is installed inside the foot support 1 to complete the overall production of the product.

[0060] Those skilled in the art will readily envision other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the appended claims.

Claims

1. A subtalar joint fixation device, characterized in that: The invention comprises a foot support (1), wherein the foot support (1) is sleeved on the heel of the wearer; The foot support (1) comprises a bottom plate (101) and a first side plate (102) and a second side plate (103) arranged at the top ends of both sides of the bottom plate (101); the first side plate (102) and the second side plate (103) are bent inward relative to each other; the top ends of the first side plate (102) and the second side plate (103) are respectively recessed toward the bottom plate (101) to form grooves (104); The first side panel (102) and the second side panel (103) fit the ankles of the wearer.

2. The subtalar joint fixation device according to claim 1, characterized in that: The first side plate (102) fits the inner side of the ankle, and the second side plate (103) fits the outer side of the ankle; The height of the first side plate (102) is greater than the height of the second side plate (103).

3. The subtalar joint fixation device according to claim 1, wherein: The distance between the first side plate (102) and the second side plate (103) first increases and then decreases in the direction from the heel to the sole.

4. The subtalar joint fixation device according to claim 1, wherein: The side plate comprises a first bending portion (105), a second bending portion (106), and a third bending portion (107) sequentially connected along a direction from the heel to the sole of the foot, and the groove (104) is located at the top of the second bending portion (106); The heights of the first bending portion (105), the second bending portion (106), and the third bending portion (107) first decrease and then increase in the direction from the heel to the sole.

5. The subtalar joint fixation device according to claim 4, characterized in that: The top ends of the two first bending portions (105) are bent outwards relative to each other; The distance between the two first bent portions (105) first decreases and then increases in a direction away from the bottom plate (101).

6. The subtalar joint fixation device according to claim 1, characterized in that: The thickness of the bottom plate (101) gradually decreases along the direction from the first side plate (102) to the second side plate (103).

7. The subtalar joint fixation device according to claim 1, wherein: The material of the foot support (1) is flexible TPU.

8. The subtalar joint fixation device according to claim 4, characterized in that: An elastic fixing belt (2) is provided at the top end of the foot support (1), and the elastic fixing belt (2) is used to fix the foot support (1) to the heel of the wearer.

9. The subtalar joint fixation device according to claim 8, characterized in that: One end of the elastic fixing band (2) is fixed to the top end of one of the third bent portions (107), and a Velcro (3) is provided on one side of the elastic fixing band (2); A through slot (4) is provided on the upper portion of the first bending portion (105); the other end of the elastic fixing band (2) passes around the back of the wearer's foot and sequentially passes through the through slots (4) on the first bending portion (105) on the opposite side and the same side, so that the other end of the elastic fixing band (2) is fixed to the first bending portion (105) on the same side through the Velcro (3).

10. The subtalar joint fixation device according to claim 1, wherein: A foot pad (5) is provided at the top of the base plate (101), and the foot pad (5) fits the sole of the wearer's foot.

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