Adjustable ankle joint support

Abstract

The utility model provides an adjustable ankle joint support which comprises an upper body, a sliding rail base, a connecting unit and an ankle joint base which are sequentially connected from top to bottom in the Z direction. A clamping needle is arranged on the ankle joint seat; the sliding rail seat is of a hollow structure with an open upper end face and comprises a side face extending in the X direction. The lower section of the upper main body extends into the slide rail seat, and the translation surface of the upper main body is contacted with the upper end surface of the side surface; the translation bolt extends in the X direction, is rotationally mounted on the sliding rail seat, penetrates through the lower section of the upper main body and is in threaded connection with the lower section; and the extension rod is provided with a nail clamp, is arranged far away from the slide rail seat along the Z direction, and is connected with the upper main body. According to the utility model, rotation and displacement can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of ankle joint technology, and in particular relates to an adjustable ankle joint support. Background Technology

[0002] A fracture is a disease in which the continuity and integrity of a bone are partially or completely destroyed due to external injury or pathological causes. Reduction, fixation, and functional exercises are the main steps in fracture treatment. Ankle fractures are a common type of foot fracture. Ankle fractures are mostly caused by indirect force, such as eversion, inversion, or external rotation. Different types and degrees of fractures result from the magnitude and direction of the force and the position of the foot at the time of injury. Subtalar joint displacement calcaneal fractures are particularly challenging to treat; the current standard treatment is open reduction and internal fixation. However, this method generally has poor treatment outcomes, poor alignment of the ankle fracture, and a high complication rate. Since the ankle is a weight-bearing joint, it can lead to traumatic ankle arthritis, causing stiffness, pain, and difficulty walking. Currently, a few cases use triangular fixation braces for reduction and fixation, but these braces have a simple structure, cannot rotate or be adjusted, are unsuitable for people of different body types, and have poor fixation effects. Summary of the Invention

[0003] The purpose of this invention is to provide an adjustable ankle joint support that allows for rotation and displacement. The technical solution adopted is as follows:

[0004] An adjustable ankle brace includes:

[0005] The upper body 5, slide rail seat 7, connecting unit and ankle joint seat 13 are connected sequentially from top to bottom along the Z direction; the ankle joint seat 13 is provided with clamping pins for installing bone pins;

[0006] The slide rail seat 7 is a hollow structure with an open upper end, which includes a side surface A extending along the X direction;

[0007] The lower section of the upper body 5 extends into the slide rail seat 7, and its translation surface 52 contacts the upper end surface of the side surface A.

[0008] Translation bolt 6 extends along the X direction and is rotatably mounted on slide rail seat 7, passing through the lower section of upper body 5 and threadedly connected thereto;

[0009] And an extension rod 2, which is provided with a nail clip 1 for installing bone needles, which is set away from the slide rail seat 7 along the Z direction and is connected to the upper body 5.

[0010] Preferably, the slide rail base 7 includes:

[0011] seat body;

[0012] A pair of convex rings are arranged opposite each other along the X direction and are disposed on the outer wall of the seat body;

[0013] The head of the translation bolt 6 engages with one of the convex rings to achieve a rotatable connection. The screw of the translation bolt 6 passes through the convex ring, the seat body, and the other convex ring in sequence, and is connected to the translation nut 16 by a locating pin.

[0014] Preferably, the upper section of the upper body 5 has a knob groove 54 and a mounting hole 53;

[0015] The mounting hole 53 cooperates with the extension rod 2 and extends from the upper end face of the upper body 5 along the Z direction to the lower section of the upper body 5.

[0016] The knob groove 54 is connected to the mounting hole 53, which is located between the upper end face of the upper body 5 and the lower section of the upper body 5, and its circumferential end face B is open to allow the lifting knob 4 to extend.

[0017] The lifting knob 4 is located in the knob groove 54 and is threadedly connected to the extension rod 2.

[0018] Preferably, it further includes a limiting knob 3, which is located above the upper body 5 and threadedly connected to the extension rod 2.

[0019] Preferably, the connection unit includes:

[0020] The steering joint 10 is connected to the connecting joint seat 8 by an upper fastening bolt 17 extending in the Y direction, and is connected to the lower body 12 by a lower fastening bolt 11 extending in the X direction.

[0021] The upper fastening bolt 17 is threadedly connected to the connecting joint seat 8 and has a clearance fit with the steering joint 10.

[0022] The lower fastening bolt 11 is threadedly connected to the steering joint 10 and has a clearance fit with the lower body 12.

[0023] The connecting joint seat 8 is detachably connected to the slide rail seat 7.

[0024] Preferably, the steering joint 10 is fitted with the connecting joint seat 8 and the lower body 12.

[0025] Preferably, the steering joint 10 is engaged with the connecting joint seat 8 and the lower body 12 by teeth.

[0026] Preferably, the connecting joint seat 8 has an upper mounting groove 81 and a side mounting groove 82;

[0027] The upper mounting groove 81 is connected to the joint seat 8 along the X direction and is locked to the arc-shaped protrusion on the lower end face of the slide rail seat 7; the side mounting groove 82 is connected to the upper mounting groove 81 along the Y direction.

[0028] The locking plate 9 engages with the side mounting groove 82 and extends from the bottom surface of the upper mounting groove 81 to the outer wall of the conforming arc-shaped protrusion.

[0029] Fasteners pass through locking plate 9 and are threadedly connected to connecting joint seat 8.

[0030] Preferably, a guide block is embedded in the inner wall of the upper body 5, the guide block cooperates with the guide groove on the extension rod 2, and the guide block is set on the upper body 5 by a guide bolt 55.

[0031] Preferably, the connecting unit is rotatably connected to the ankle joint seat 13 via a central shaft 14.

[0032] Compared with the prior art, the advantages of this utility model are:

[0033] 1. Depending on the position of the bone pins on the joint, the upper body 5 and the pin clamp 1 can be moved by the translation bolt 6, and the height of the pin clamp 1 can be changed by the lifting knob 4.

[0034] 2. Adjust the position between the slide rail seat 7 and the connecting joint seat 8 according to the position of the bone pin on the joint.

[0035] 3. After the bracket is installed, since both ends of the steering joint component 10 are toothed, it has both steering function and ensures the reliability of locking, which is conducive to the patient's movement.

[0036] 4. After the bracket is installed, the ankle joint seat 13 can rotate along the central axis 14, which is conducive to the patient's movement. Attached Figure Description

[0037] Figure 1 A 3D view of an adjustable ankle support;

[0038] Figure 2 Diagram showing the connection relationship between the extension rod, the upper body, and the slide rail seat;

[0039] Figure 3 This is a diagram showing the connection relationship between the upper body and the slide rail base;

[0040] Figure 4 A three-dimensional view of the main body;

[0041] Figure 5 This diagram shows the connection relationship between the slide rail seat and the translation bolt and translation nut.

[0042] Figure 6 This is a 3D view of the translation nut;

[0043] Figure 7 This diagram shows the connection relationships between the joint seat, the steering joint, and the lower body.

[0044] Figure 8 This diagram shows the connection relationship between the joint seat and the steering joint.

[0045] Figure 9 A three-dimensional view of the steering joint;

[0046] Figure 10 A three-dimensional view of the connecting joint seat;

[0047] Figure 11 This is a diagram showing the connection relationship between the joint seat and the locking plate;

[0048] Figure 12 This is a sectional view of the connecting joint seat;

[0049] Figure 13 Diagram showing the connection relationship between fasteners and locking plates;

[0050] Figure 14 This is a structural diagram of the locking and clamping tablet;

[0051] Figure 15 This is a schematic diagram showing the position of the guide block;

[0052] Figure 16 A schematic diagram showing the guide groove on the extension rod and its interaction with the guide block;

[0053] Figure 17 This is a diagram showing the relative positions of the limit knob and the lift knob;

[0054] Figure 18 This is a diagram showing the threaded connection between the limit knob and the extension bar.

[0055] Figure 19 This diagram shows the connection relationship between the upper clamping pin, the upper clamping pin nut, and the pin clamp.

[0056] Figure 20 A diagram showing the fit of the arc-shaped protrusions made for locking the pressure plate and the slide rail;

[0057] Figure 21 This diagram shows the connection relationship between the lower clamp and the lower clamp nut.

[0058] Figure 22 This is a diagram showing the state of the bracket after the upper fastening bolts have loosened;

[0059] Figure 23 shows the state of the bracket when both the lower and upper fastening bolts are loose.

[0060] Among them, 1-nail clip, 2-extension rod, 3-limit knob, 4-lifting knob

[0061] 5-Upper body, 51-Threaded hole, 52-Translation surface, 53-Mounting hole, 54-Knob groove, 55-Guide bolt;

[0062] 6-Transfer bolt, 16-Transfer nut, 161-Pin hole;

[0063] 7-Slide rail base,

[0064] 8-Connecting joint seat, 81-Upper mounting slot, 82-Side mounting slot;

[0065] 9-Locking pressure block,

[0066] 10-Steering joint,

[0067] 11 - Lower fastening bolt, 17 - Upper fastening bolt;

[0068] 12-Lower body, 13-Ankle joint seat,

[0069] 14 - Central shaft, 15 - Lower clamping nut. Detailed Implementation

[0070] The adjustable ankle joint support of this utility model will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the utility model.

[0071] like Figures 1-20 An adjustable ankle support, comprising:

[0072] The upper body 5, slide rail seat 7, connecting unit and ankle joint seat 13 are connected sequentially from top to bottom along the Z direction; the ankle joint seat 13 is provided with clamping pins for installing bone pins;

[0073] The slide rail seat 7 is a hollow structure with an open upper end, which includes a side surface A extending along the X direction;

[0074] The upper body 5 has its lower section extending into the slide rail seat 7, and its translation surface 52 contacts the upper end surface of the side surface A.

[0075] Translation bolt 6 extends along the X direction and is rotatably mounted on slide rail seat 7. It passes through threaded hole 51 on the lower section of upper body 5 and is threadedly connected to it.

[0076] And an extension rod 2, which is provided with a nail clip 1 for installing bone needles, which is set away from the slide rail seat 7 along the Z direction and is connected to the upper body 5.

[0077] like Figures 5-6 The slide rail 7 includes:

[0078] seat body;

[0079] A pair of convex rings are arranged opposite each other along the X direction and are disposed on the outer wall of the seat body;

[0080] The head of the translation bolt 6 engages with one of the convex rings to achieve a rotatable connection. The screw of the translation bolt 6 passes through the convex ring, the seat body, and the other convex ring in sequence, and is connected to the translation nut 16 by a locating pin.

[0081] The principle of the extension rod 2 translating along the X direction:

[0082] The translation bolt 6 drives the upper body 5, which translates along the X direction under the constraint of the slide rail seat 7.

[0083] like Figure 5 As shown, the translation nut 16 mates with the corresponding convex ring. (As shown...) Figure 6 As shown, a pin hole 161 is provided on the translation nut 16, which is a through hole; correspondingly, a pin hole is also provided on the screw of the translation bolt 6.

[0084] Depend on Figure 5 Tighten the translation nut; the head of the translation bolt 6 and the translation nut 16 can both rotate around the corresponding convex ring.

[0085] like Figure 4 The upper section of the main body 5 has a knob groove 54 and a mounting hole 53.

[0086] Mounting hole 53, which mates with extension rod 2, extends from the upper end face of upper body 5 along the Z direction to the lower section of upper body 5; wherein, mounting hole 53 and threaded hole 51 are not connected.

[0087] The knob groove 54 is connected to the mounting hole 53, which is located between the upper end face of the upper body 5 and the lower section of the upper body 5, and its circumferential end face B is open to allow the knob 4 to be pulled out.

[0088] The lifting knob 4 is located in the knob groove 54 and is threadedly connected to the extension rod 2.

[0089] like Figure 18 The limiting knob 3 is located above the upper body 5 and is threadedly connected to the extension rod 2.

[0090] The principle behind the upward movement of extension rod 2:

[0091] Step 1, in Figure 17 Based on this, the lifting knob 4 is turned. Since the lifting knob 4 is limited to the knob groove 54, it has no displacement in the Z direction. Therefore, the extension rod 2 rises under the drive of rotating the lifting knob 4.

[0092] Step 2: After rising to the set height, turn the limit knob 3 so that the limit knob 3 moves downward until the limit knob 3 fits against the upper body 5.

[0093] At this point, by using the lifting knob 4 and the limiting knob 3, the extension rod 2 is stably locked to the upper body 5.

[0094] The principle of the descent of extension rod 2:

[0095] Step 1: Rotate the limit knob 3 in the opposite direction to move it upward to the protrusion on the extension rod 2 to unlock the extension rod 2.

[0096] Then continue to rotate in the opposite direction to move the limit knob 3 upward until it is a certain distance away from the upper body 5.

[0097] Step 2: Pull up knob 4. The extension rod 2 descends under the drive of rotating the pull up knob 4.

[0098] Step 3: After rising to the set height, turn the limit knob 3 in the forward direction so that the limit knob 3 moves downward until the limit knob 3 fits against the upper body 5.

[0099] like Figure 18 As shown, a boss is provided on the extension rod 2 to prevent the limit knob 3 from disengaging from the threaded section of the extension rod 2.

[0100] like Figure 1 , Figure 9 The connecting unit includes:

[0101] The steering joint 10 is connected to the connecting joint seat 8 by an upper fastening bolt 17 extending in the Y direction, and is connected to the lower body 12 by a lower fastening bolt 11 extending in the X direction.

[0102] The upper fastening bolt 17 is threaded to the connecting joint seat 8 and has clearance fit with the steering joint 10;

[0103] The lower fastening bolt 11 is threaded to the steering joint 10 and has a clearance fit with the lower body 12.

[0104] The connecting joint seat 8 is detachably connected to the slide rail seat 7.

[0105] The steering joint 10 is fitted with the connecting joint seat 8 and the lower body 12.

[0106] The steering joint 10 is engaged with the connecting joint seat 8 and the lower body 12 by teeth.

[0107] like Figure 9 As shown, teeth are provided on both the upper and lower contact surfaces of the steering joint 10.

[0108] like Figure 8 As shown, the teeth on the upper mating surface mesh with the teeth on the connecting joint seat 8; as Figure 1 As shown, the teeth on the lower mating surface mesh with the teeth on the lower body 12.

[0109] The upper fastening bolt 17 and the lower fastening bolt 11 can be loosened simultaneously.

[0110] Taking the steering motion between the steering joint 10 and the connecting joint seat 8 as an example, the working principle of the steering joint 10 is explained:

[0111] In the initial state, the upper fastening bolt 17 is tightened on the steering joint 10. At this time, the steering joint 10 and the connecting joint seat 8 are tightly fitted together under the preload applied by the upper fastening bolt 17 and cannot rotate relative to each other.

[0112] Tighten the upper fastening bolt 17 in the opposite direction to loosen it. At this point, the preload disappears, and the steering joint 10 and the connecting joint seat 8 rotate relative to each other under the influence of external force. Figure 22 As shown, the steering joint 10 and the lower body 12 rotate together around the connecting joint seat 8.

[0113] Since the connecting joint seat 8 and the upper fastening bolt 17 are threaded together, when the steering joint 10 and the connecting joint seat 8 rotate relative to each other, the connecting joint seat 8 and the upper fastening bolt 7 are regarded as a whole.

[0114] Furthermore, if both the upper fastening bolt 17 and the lower fastening bolt 11 are loosened simultaneously, the movement state of the connecting joint seat 8, the steering joint 10, and the lower body 12 is as follows: Figure 23 .

[0115] Assuming the connecting joint seat 8 is fixed, the steering joint 10 is equivalent to a joint, and the lower body 12 can rotate in any direction relative to the connecting joint seat 8.

[0116] like Figure 23 The lower body 12 can rotate in any direction relative to the connecting joint seat 8.

[0117] The lower body 12 and the ankle joint seat 13 are rotatably connected by a central shaft 14.

[0118] like Figures 11-12 The connecting joint seat 8 has an upper mounting groove 81 and a side mounting groove 82;

[0119] The upper mounting groove 81 is connected to the joint seat 8 along the X direction and is locked to the lower end face of the slide rail seat 7. The side mounting groove 82 is connected to the upper mounting groove 81 along the Y direction.

[0120] The locking plate 9 engages with the side mounting groove 82 and extends from the bottom surface of the upper mounting groove 81 to the outer wall of the conforming arc-shaped protrusion.

[0121] Fasteners pass through locking plate 9 and are threadedly connected to connecting joint seat 8.

[0122] like Figures 15-16A guide block is embedded in the inner wall of the upper body 5. The guide block cooperates with the guide groove on the extension rod 2. The guide block is set on the upper body 5 by guide bolt 55.

[0123] like Figure 19 As shown, the nail clamp 1 is provided with an upper clamping needle nut; the upper clamping needle nut is threadedly connected to the upper clamping needle, and the whole is placed in the mounting hole on the nail clamp 1. A needle hole is opened on the upper clamping needle.

[0124] After the bone pin is inserted into the nail hole, tighten the pin clamp nut to lock the nail clamp 1 and bone pin into the extension rod 2.

[0125] like Figure 21 As shown, the lower clamp nut 15 is threadedly connected to the lower clamp pin, forming a whole that is placed in the mounting hole on the ankle joint seat 13. A pin hole is provided on the lower clamp pin.

[0126] After the bone pin is inserted into the pin hole, unscrew the clamping nut 15 to lock the bone pin into the ankle joint seat 13.

[0127] As shown above, the upper clamp nut and the upper clamp threaded connection form an integral part placed in the mounting hole on the pin clamp 1, and the lower clamp nut 15 and the lower clamp threaded connection form an integral part placed in the mounting hole on the ankle joint seat 13. Therefore, the entire assembly can rotate in the corresponding mounting hole, ultimately allowing the angle of the metal bone pin mounted on it to be adjustable.

[0128] In summary, this adjustable ankle brace has the following advantages:

[0129] The nail clip 1 can be installed on the extension rod 2 at various angles and directions to install metal bone pins. The extension rod 2 can be raised by pulling the knob 4.

[0130] Rotating the translation bolt 6 can make the upper body 5 translate.

[0131] During installation, the connecting joint seat 8 can be installed at a suitable position on the adjustable slide rail seat 7 as needed, and then fixed with locking blocks 9.

[0132] The ankle joint seat 13 can rotate along the central axis 14, which facilitates patient movement after installation.

[0133] The advantages of this product compared to current products are:

[0134] 1. Before the bracket is installed and fixed on the bone pin, or after the ankle joint seat 13 of the bracket is fixed on the bone pin, the upper body 5 and the nail clip 1 can be moved by the translation bolt 6.

[0135] 2. The slide rail seat 7 is connected to the connecting joint seat 8, providing more position options.

[0136] 3. Both ends of the steering joint component 10 are toothed, which not only provides steering function but also ensures the reliability of locking.

[0137] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An adjustable ankle joint brace, characterized in that, include: The upper body (5), slide rail seat (7), connecting unit and ankle joint seat (13) are connected sequentially from top to bottom along the Z direction; the ankle joint seat (13) is provided with a clamp for installing bone pins; The slide rail seat (7) is a hollow structure with an open upper end, which includes a side surface A extending along the X direction; The upper body (5) has its lower section extending into the slide rail seat (7), and its translation surface (52) contacts the upper end surface of the side surface A; Translation bolt (6), which extends along the X direction and is rotatably mounted on slide rail seat (7), passes through the lower section of upper body (5) and is threadedly connected to it; And an extension rod (2), which is provided with a nail clip (1) for installing bone needles, which is set away from the slide rail seat (7) along the Z direction and is connected to the upper body (5).

2. The adjustable ankle joint support according to claim 1, characterized in that, The slide rail base (7) includes: seat body; A pair of convex rings are arranged opposite each other along the X direction and are disposed on the outer wall of the seat body; The head of the translation bolt (6) engages with one of the convex rings to achieve a rotatable connection. The screw of the translation bolt (6) passes through the convex ring, the seat body, and the other convex ring in sequence, and is connected to the translation nut (16) by a locating pin.

3. The adjustable ankle joint support according to claim 1, characterized in that, The upper section of the upper body (5) has a knob groove (54) and a mounting hole (53). The mounting hole (53) cooperates with the extension rod (2) and extends from the upper end face of the upper body (5) along the Z direction to the lower section of the upper body (5); The knob groove (54) is connected to the mounting hole (53), which is located between the upper end face of the upper body (5) and the lower section of the upper body (5), and its circumferential end face B is open to allow the lifting knob (4) to extend. The lifting knob (4) is located in the knob groove (54) and is threadedly connected to the extension rod (2).

4. The adjustable ankle joint support according to claim 3, characterized in that, It further includes a limit knob (3), which is located above the upper body (5) and threadedly connected to the extension rod (2).

5. The adjustable ankle joint support according to claim 1, characterized in that, The connection unit includes: The steering joint (10) is connected to the connecting joint seat (8) by an upper fastening bolt (17) extending in the Y direction, and is connected to the lower body (12) by a lower fastening bolt (11) extending in the X direction. The upper fastening bolt (17) is threaded to the connecting joint seat (8) and has clearance fit with the steering joint (10); The lower fastening bolt (11) is threaded to the steering joint (10) and has clearance fit with the lower body (12); The connecting joint seat (8) is detachably connected to the slide rail seat (7).

6. The adjustable ankle joint support according to claim 5, characterized in that, The steering joint (10) is fitted with the connecting joint seat (8) and the lower body (12).

7. The adjustable ankle joint support according to claim 6, characterized in that, The steering joint (10) is engaged with the connecting joint seat (8) and the lower body (12) by teeth.

8. The adjustable ankle joint support according to claim 5, characterized in that, The connecting joint seat (8) has an upper mounting groove (81) and a side mounting groove (82). The upper mounting groove (81) is connected to the joint seat (8) along the X direction and is locked to the arc-shaped protrusion on the lower end face of the slide rail seat (7). The side mounting groove (82) is connected to the upper mounting groove (81) along the Y direction. The locking plate (9) engages with the side mounting groove (82) and extends from the bottom surface of the upper mounting groove (81) to the outer wall of the conforming arc protrusion; The fastener passes through the locking plate (9) and is threaded to the connecting joint seat (8).

9. The adjustable ankle joint support according to claim 1, characterized in that, A guide block is embedded in the inner wall of the upper body (5). The guide block cooperates with the guide groove on the extension rod (2). The guide block is set on the upper body (5) by a guide bolt (55).

10. The adjustable ankle joint support according to claim 1, characterized in that, The connecting unit is rotatably connected to the ankle joint seat (13) via a central shaft (14).

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