A joint fixator

Abstract

The utility model discloses a joint fixer, comprising: two brackets and a connecting mechanism, the connecting mechanism comprising: an active module and an angle adjustment module; the angle adjustment module comprising: a shell, a worm wheel and a worm, and a synchronous gear; one of the worm wheel and the worm is arranged at the connection between the shell and the active module or at the connection between the shell and the bracket, and the other is installed in the shell; when the worm wheel and the worm rotate, the synchronous gear is driven to rotate; the shell is provided with a display window, and a data disk is provided corresponding to the display window, and the synchronous gear drives the data disk to rotate; the angle adjustment module of the utility model is mainly adjusted for different forms of limbs of different users, and the user is more comfortable to wear after the adjustment; the angle adjustment module is also provided with an inspection window and a data disk, and the user can observe how many degrees the currently adjusted angle is after adjusting to a suitable comfort level, and can adjust to the last angle when continuing to wear after disassembly, so that the adjustment is faster.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and more specifically to a joint fixator. Background Art

[0002] A joint fixator, in particular a joint fixator used for the joint parts of the arms or legs for correction and shaping, can play a fixing role, so that the user can better fix the arms or legs to facilitate subsequent rehabilitation needs.

[0003] For example, U.S. Publication No. US20020026136A1 discloses an orthotic joint for use in an orthosis in which two parts of the body can be bent and extended relative to each other, such as a knee or arm orthosis, wherein the orthotic joint rotatably connects two splints, each splint being connected to an upper portion and a lower portion of an orthosis that can be fixed to a corresponding part of the body, wherein a pair of splints having orthotic joints are respectively arranged at the sides and / or the center of the orthosis, wherein the splints are mutually meshed at the ends of the orthotic joint by one or more common pins or teeth arranged at their ends, wherein an adjustable end stop for extension and / or bending is provided, and wherein the end stop is adjustable within one or more angle ranges;

[0004] This existing patented technology allows swinging in the direction of arm or leg bending, which has better flexibility, but it cannot be adjusted in the direction perpendicular to the joint movement. As for the leg protector, the thigh and calf swing relatively back and forth during walking, and the problem solved by the above patent is also the problem of smooth back and forth swinging, that is, it can bend and stretch smoothly; but the problem of outside and inside adjustment cannot be adjusted, and the leg shape of each user is different. It is necessary to adjust one of the supporting sides of the fixator toward the inner thigh direction or the outer thigh direction to suit users with different leg shapes until it is adjusted to a comfortable angle. Utility Model Content

[0005] In view of this, the utility model provides a joint fixator with adjustable angle.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a joint fixator, comprising: two brackets and a connecting mechanism connected between the two brackets, the connecting mechanism comprising: a movable module and an angle adjustment module, the angle adjustment module is arranged between the movable module and the bracket;

[0007] The angle adjustment module comprises:

[0008] A housing, rotatably connected to the movable module and the bracket;

[0009] A worm wheel and a worm, one of which is arranged at the connection between the housing and the movable module or at the connection between the housing and the bracket, and the other is installed in the housing;

[0010] When the synchronous gear, worm wheel and worm rotate, the synchronous gear is driven to rotate;

[0011] External force drives the worm wheel and the worm to rotate, causing the housing to swing relative to the movable module or the bracket;

[0012] The housing is provided with a display window, a data disk is provided corresponding to the display window, and the synchronous gear drives the data disk to rotate;

[0013] The joint fixator of the present technology can complete the position adjustment between bending and extension through the movable module to meet the position or angle changes of the limbs when the user is active; and the angle adjustment module is mainly used to adjust the different shapes of different users' limbs, and the users are more comfortable to wear after the adjustment; such as when applied to the leg joint fixator, the leg shapes of users are different, some users have straighter legs, while some users have more curved legs, so the angle can be adjusted inward or outward through the angle adjustment module, so that the joint fixator can better clamp the legs and provide higher comfort; the present technology is also provided with an inspection window and a data disk, so that the user can observe the current adjusted angle after adjusting to the appropriate comfort level, and can adjust to the last angle when continuing to wear it after disassembly, so that the adjustment is faster.

[0014] As a preferred solution of the utility model, a surface of the synchronous gear is provided with a data mark to constitute the data disk; or a data disk is coaxially fixedly mounted on the synchronous gear, and a data mark is provided on the surface of the data disk;

[0015] The present technology defines a specific implementation structure of the data disk, and both structures can be implemented. In addition, the user can observe the currently adjusted angle after adjusting the angle, so that the user can adjust to the same angle when wearing it again without having to adjust the fit again.

[0016] As a preferred solution of the utility model, two synchronous gears are provided, wherein the first synchronous gear is fixed to the worm, and the multiple synchronous gears rotate synchronously;

[0017] The data mark is arranged on one of the synchronous gears to form a data disk.

[0018] As a preferred solution of the present utility model, the housing is provided with an indication mark corresponding to the display window, and the indication mark indicates the current specific data.

[0019] As a preferred solution of the utility model, the shell is also provided with an adjustment port, through which the worm is driven to rotate by a tool. The present technology is adjusted manually, and the tool may refer to a hexagonal screw, etc., which is inserted into the adjustment port and connected to the worm. When the hexagonal screw rotates, it drives the worm to rotate, and then drives the worm wheel to rotate, thereby finally realizing the swing of the shell and adjusting the angle.

[0020] As a preferred solution of the utility model, the housing is also provided with a power assembly, which drives the worm and the worm to rotate; the present technology is adjusted by electric means, which is more intelligent than the manual method, but increases the complexity of the joint fixator structure and increases its weight.

[0021] As a preferred solution of the utility model, the movable module includes: two connecting arms and an outer shell, one end of the connecting arm is connected to the shell through a rotating shaft, the worm gear is fixedly mounted on the rotating shaft or the worm gear is molded on the rotating shaft, and the worm is installed on the shell and engages with the worm gear; the shell and the bracket are connected by a movable shaft; the specific installation positions of the worm gear and the worm are specifically defined in this technology, and after the angle adjustment module swings, the connection between the bracket and the shell rotates accordingly.

[0022] As a preferred solution of the utility model, connecting ears are respectively arranged between the connecting arm and the shell, and between the bracket and the shell. The connecting ears in this technology are commonly used in current mechanical structures and are used for rotatable connection between two components. They have a simple structure and are easy to install.

[0023] As a preferred solution of the utility model, the two connecting arms are respectively provided with gears at corresponding ends, and the gears provided at one end of the two connecting arms mesh with each other, so that the two connecting arms can swing relative to each other;

[0024] The shell blocks the position where the connecting arm is provided with a gear. The technology enables the two connecting arms to swing and position relative to each other through the gear.

[0025] As a preferred solution of the utility model, the two brackets include: an upper bracket and a lower bracket, and an angle adjustment module is provided between the movable module and the upper bracket and / or between the movable module and the lower bracket;

[0026] The housing is provided with a strap fixing part; in the present technology, when the joint fixator is used as a leg joint fixator, the upper bracket may correspond to the thigh, the lower bracket may correspond to the calf, and the strap is connected through the strap fixing part to stabilize the joint fixator; and the angle is adjusted to a suitable angle through the angle adjustment module;

[0027] In the present technology, when the joint fixator is used as a hand joint fixator, the upper bracket may correspond to the upper arm, the lower bracket may correspond to the forearm, and the straps are connected by the strap fixing part to make the joint fixator stable when worn; and the angle is adjusted to a suitable angle through the angle adjustment module.

[0028] As a preferred solution of the utility model, the upper bracket and the lower bracket cover the limb, and the upper bracket and the lower bracket correspond to the inner side of the limb as the first connection side, and the upper bracket and the lower bracket correspond to the outer side of the limb as the second connection side;

[0029] On the first connection side, the movable module is connected to the upper bracket via an elastic deformation sheet, and the movable module is connected to the lower bracket via an elastic deformation sheet;

[0030] On the second connection side, the movable module is connected to the upper bracket via an angle adjustment module, and the movable module is connected to the lower bracket via an angle adjustment module;

[0031] In this technology, the joint fixator clamps the limbs from both sides to fix and protect them, wherein the first connection side is non-adjustable and the second connection side is adjustable.

[0032] As a preferred solution of the utility model, the display window and the adjustment port are both located on the second connection side, which is convenient for users to adjust the angle and view specific adjusted data.

[0033] Other beneficial technical effects of the utility model are embodied in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 This is a structural schematic diagram of a joint fixator of the utility model;

[0036] Figure 2 It is a schematic diagram of a joint fixator of the utility model adjusted to a first angle;

[0037] Figure 3 It is a schematic diagram of a joint fixator of the utility model adjusted to a second angle;

[0038] Figure 4 It is a schematic diagram of the assembled movable module and the angle adjustment module in a joint fixator of the utility model;

[0039] Figure 5 It is a schematic diagram of a movable module and an angle adjustment module in a joint fixator of the utility model after adjusting the angle;

[0040] Figure 6 This is a schematic diagram of a joint fixator of the utility model after the outer shell of the movable module is removed;

[0041] Figure 7 This is a side angle schematic diagram of a joint fixator of the utility model after the outer shell of the movable module is removed;

[0042] Figure 8 for Figure 1 Enlarged view of point A in the middle.

[0043] Description of reference numerals:

[0044] DETAILED DESCRIPTION

[0045] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0046] A joint fixator, see Figure 1 As shown, it includes: two brackets 100 and a connection mechanism connected between the two brackets 100 , the connection mechanism includes: a movable module 200 and an angle adjustment module 300 , and the angle adjustment module 300 is arranged between the movable module 200 and the bracket 100 .

[0047] The joint fixator of the utility model is as follows Figure 1 As shown, it is a joint fixator applied to the leg joints, the bracket 100 has an upper bracket 110 and a lower bracket 120, when worn, the upper bracket 110 corresponds to the thigh, and the lower bracket 120 corresponds to the calf; the upper bracket 110 and the lower bracket 120 are connected by a connecting mechanism.

[0048] Optionally, the joint fixator can also be designed as a joint fixator for the hand, which also has an upper bracket and a lower bracket, the upper bracket corresponds to the upper arm, the lower bracket corresponds to the forearm, and the upper bracket and the lower bracket are connected by a connecting mechanism; the shape and size of the brackets of the joint fixator for the hand and the joint fixator for the leg are slightly different, but the wearing and use principles are the same.

[0049] In this embodiment, a joint fixator for a leg is used as an example for explanation.

[0050] The movable module 200 is mainly used to facilitate the relative swing between the upper bracket 110 and the lower bracket 120. For example, when the user walks interactively, the thigh and the calf will swing relative to each other around the joint; when sitting down, the thigh and the calf will form a certain angle with each other;

[0051] The angle adjustment module 300 is mainly used to facilitate adjustment for users with different leg shapes.

[0052] After the upper bracket 110 and the lower bracket 120 are connected, a first connection side 01 and a second connection side 02 are formed. Figure 2 As shown, the left side is the first connection side 01, and the right side is the second connection side 02. After wearing, the upper bracket 110 is close to the thigh, and the lower bracket 120 is close to the calf. The first connection side 01 corresponds to the inner side of the leg, and the second connection side 02 corresponds to the outer side of the leg.

[0053] On the first connection side 01, the upper bracket 110 and the lower bracket 120 may be connected via the angle adjustment module 300 and the movable module 200, or the upper bracket 110 and the lower bracket 120 may be connected only via the movable module 200;

[0054] On the second connection side 02 , the upper bracket 110 and the lower bracket 120 may be connected via the angle adjustment module 300 and the movable module 200 .

[0055] In this embodiment, on the first connection side 01, the upper bracket 110 and the lower bracket 120 are connected only by the movable module 200; on the second connection side 02, the upper bracket 110 and the lower bracket 120 are connected by the angle adjustment module 300 and the movable module 200. When adjusting, it is only necessary to adjust the angle adjustment module 300 on the second connection side 02 to adjust the angle.

[0056] Further, on the second connection side 02 , an angle adjustment module 300 may be provided between the upper bracket 110 and the movable module 200 , or between the lower bracket 120 and the movable module 200 ;

[0057] Alternatively, an angle adjustment module 300 may be provided between the upper bracket 110 and the movable module 200 and between the lower bracket 120 and the movable module 200 .

[0058] like Figure 1 As shown, in this embodiment, an angle adjustment module 300 is disposed between the upper bracket 110 and the movable module 200 and between the lower bracket 120 and the movable module 200 .

[0059] Furthermore, the angle adjustment module 300 includes: a housing 310 , a worm wheel 320 , a worm 330 and a synchronous gear 340 .

[0060] The shell 310 is used as a carrier and can be a single shell or a shell of a combined structure, as long as it can play a role of accommodation or support; the shell 310 and the upper bracket 110 are connected by a movable shaft 111, and one of the worm wheel 320 and the worm 330 is arranged at the connection between the shell 310 and the movable module 200, and the other is installed on the shell 310; when one of the ones installed on the shell 310 is driven to rotate, the other one is driven to rotate, so that the angle adjustment module 300 swings relative to the movable module 200.

[0061] Specifically, Figure 4 As shown, the housing 310 includes an upper housing 311 and a lower housing 312. After the upper housing 311 and the lower housing 312 are assembled, a receiving cavity is formed inside, which can receive components such as the worm wheel 320, the worm 330 and the synchronous gear 340;

[0062] More specifically, the housing 310 and the upper bracket 110 are connected by a movable shaft 111, and the two can swing; the housing 310 and the upper connecting arm 210 of the movable module 200 are connected by a rotating shaft, and the housing 310 and the movable module 200 can also rotate relative to each other. The worm wheel 320 is installed on the rotating shaft or the worm wheel 320 is integrally formed on the rotating shaft, and the surface of the worm wheel 320 is provided with teeth; the worm 330 is installed on the housing 310 and meshes with the worm wheel 320. When the worm 330 is driven to rotate under external force, the worm wheel 320 is driven to rotate, so that the angle adjustment module 300 swings a certain angle relative to the movable module 200.

[0063] In the initial case, if Figure 2 As shown, the first connection side 01 and the second connection side 02 of the joint fixator are substantially vertical, and cooperate to clamp the leg. Since the leg form / shape of each user is different, adjustment is required;

[0064] like Figure 3 As shown, the angle adjustment module 300 between the upper bracket 110 and the movable module 200 is adjusted. During adjustment, the worm 330 is rotated in the positive direction, which in turn drives the worm wheel 320 to rotate, so that the housing 310 swings relative to the movable module 200, and the angle adjustment module 300 swings relatively clockwise (i.e. Figure 3 When the angle adjustment module 300 swings, the upper bracket 110 rotates relative to the angle adjustment module 300 via the movable shaft 111.

[0065] Will Figure 2 and Figure 3 For comparison, Figure 2 The activity module 200 and Figure 3 The angle of the active module 200 in FIG. 1 is obviously different. Figure 2 The movable module 200 is slightly tilted, and Figure 3The middle active module 200 is relatively vertical; furthermore, Figure 3 Compared with the angle adjustment module 300 Figure 2 The angle adjustment module 300 has a larger tilt angle.

[0066] After adjusting the angle adjustment module 300 between the upper bracket 110 and the movable module 200, the angle adjustment module 300 between the lower bracket 120 and the movable module 200 is adjusted. During the adjustment, the worm 330 is also rotated in the forward direction to drive the worm wheel 320 to rotate, so that the shell 310 swings relative to the movable module 200, and the angle adjustment module 300 swings relatively clockwise. When the angle adjustment module 300 swings, the lower bracket 120 rotates relative to the angle adjustment module 300 through the movable shaft 111.

[0067] Therefore, through the above, it can be adjusted according to the different leg shapes of different users to make it more comfortable to wear.

[0068] Above Figure 2-3 The middle angle adjustment module 300 is for adjusting the angle by tilting outward, that is, tilting to the right. In actual application, the angle adjustment module 300 can also be for adjusting the angle by tilting inward, that is, tilting to the left.

[0069] When using the joint fixator, the user will take it off when sleeping or bathing. Then, when putting it on again, the angle needs to be readjusted to achieve a comfortable wearing experience.

[0070] In order to make it easier for users to know the angle when they wore it last time, so as to adjust it to the same angle the next time they wear it, without having to debug it multiple times to find a comfortable angle again, the angle adjustment module 300 is also provided with a display window and a data disk.

[0071] Furthermore, a display window 313 is provided on the housing 310, and the display window 313 is provided on the outside for convenient observation by the user;

[0072] The display window 313 can be directly a notch provided on the housing 310 , or a structure such as a glass sheet or a plastic sheet can be added to the notch.

[0073] The data disk is engraved / printed with data marks, which can prompt the current number of rotations or swing angles, so that the user knows that the next time the adjustment is made, the same data can be adjusted.

[0074] Furthermore, at least two synchronous gears 340 are provided, wherein the first synchronous gear is fixed to the worm 330, and the multiple synchronous gears rotate synchronously;

[0075] The data mark is disposed on one of the synchronous gears 340 to form a data disk;

[0076] Specifically, in this embodiment, Figure 4-5 As shown, the synchronous gear 340 includes: a first synchronous gear 341, a second synchronous gear 342, a third synchronous gear 343 and a fourth synchronous gear 344;

[0077] The first synchronous gear 341 is fixed to the worm 330 . The first synchronous gear 341 , the second synchronous gear 342 , the third synchronous gear 343 and the fourth synchronous gear 344 are meshed in sequence. The third synchronous gear 343 and the fourth synchronous gear 344 are double gear designs.

[0078] The data disk can be implemented in the following ways:

[0079] A data mark is provided on one surface of the synchronous gear 340 to constitute the data disk; or a data disk is coaxially fixedly mounted on the synchronous gear 340, and a data mark is provided on the surface of the data disk;

[0080] In this embodiment, a data mark is arranged on the surface of the third synchronization wheel 343 to form a data disk.

[0081] The number of synchronous gears 340 can be changed. Multiple synchronous gears 340 are used to adjust the speed ratio. For example, when the worm 330 rotates one circle, i.e. 360°, the third synchronous wheel 343 may rotate 10°. Similarly, when the worm 330 rotates two circles, the third synchronous wheel 343 may rotate 20°. This is related to the number and size ratio of the synchronous gears 340.

[0082] Continue as Figure 4-5 As shown, data distributed at 0, 10, 20, 30, 40, 30, 20, and 10 are arranged on the surface of the third synchronous wheel 343, and the data identifiers are arranged in a circle. Clockwise from 0 to 40 is the data displayed during positive rotation, and counterclockwise from 0 to 40 is the data displayed during reverse rotation.

[0083] like Figure 4 As shown, when the angle adjustment module 300 between the upper bracket 110 and the movable module 200 is adjusted, the worm 330 is rotated in the positive direction and drives the worm wheel 320 to rotate, so as to adjust the swing angle of the housing 310. When the worm 330 rotates, the synchronous gear 340 is driven; assuming Figure 4 The middle position is indicated as 20 in the display window 313. Next time the user makes an adjustment, the adjustment can be made to the position indicated as 20.

[0084] Assuming that the display on the disk shows an angle, then Figure 4If the indication is 20, the angle adjustment module 300 swings outward by 20°; more specifically, the worm 330 rotates one circle, and the third synchronous wheel 343 may rotate by 10°, then the indication mark 314 points to the number 10, and the angle adjustment module 300 swings outward by 10°.

[0085] like Figure 8 As shown, the display window 313 is arranged in an arc shape and can display 5 values ​​at a time. The housing 310 is provided with an indication mark 314 corresponding to the display window 313, and the indication mark 314 is a triangle.

[0086] Figure 1 The middle indicator mark 314 points to the mark “0”, which means that the angle adjustment device 300 is not adjusted at this time.

[0087] During adjustment, the worm 330 is rotated forward to drive the synchronous gear 340 to rotate. The data disk rotates according to the angle or number of turns of the worm 330. After the worm 330 stops rotating, the data disk stops rotating. The indicator mark 314 can indicate any position between 0-40 in the clockwise direction. The user remembers the current position so that he can know how to adjust the next time he wears it, or what position to adjust to achieve the purpose of wearing comfort.

[0088] Furthermore, during adjustment, the worm 330 is rotated in the reverse direction to drive the synchronous gear 340 to rotate. According to the angle or number of rotations of the worm 330, the data disk rotates. After the worm 330 stops rotating, the data disk stops rotating. The indicator mark 314 can indicate any position between 0-40 in the counterclockwise direction. The user should remember the current position so that he or she will know how to adjust the watch the next time he or she wears it, or to what position the watch can be adjusted to achieve a comfortable wearing experience.

[0089] In one embodiment, the rotation of the worm 330 may be performed manually or electrically.

[0090] In manual mode, an adjusting port 315 is further provided in the housing 310, and the worm 330 is exposed in the adjusting port 315. A hexagonal hole can be provided at one end of the worm 330 exposed in the adjusting port 315, and the hexagonal screw can be inserted into the adjusting port 315 to connect with the worm 330, so the adjustment process is simple and convenient.

[0091] In the electric mode, a power component is provided in the housing 310, and the power component can be a motor; specifically, a motor, a transmission gear and other structures need to be provided in the housing 310, and the worm 330 is driven to rotate slowly after power is turned on, and stops after rotating to a suitable position; the electric mode involves the installation of electrical parts and the power supply, which makes the overall structure of the joint fixator complex and heavy. Therefore, manual adjustment is preferably adopted in this embodiment.

[0092] In one embodiment, the movable module 200 includes: two connecting arms and a housing 230 , wherein the two connecting arms include: an upper connecting arm 210 and a lower connecting arm 220 , and the housing 230 serves a shielding and protective function.

[0093] like Figure 6-7 As shown, one end of the upper connecting arm 210 and the lower connecting arm 220 are respectively connected to the housing 310 of the two angle adjustment modules 300 through a rotating shaft, the worm gear 320 is fixedly mounted on the rotating shaft or the worm gear 320 is formed on the rotating shaft, and the worm 330 is installed on the housing 310 and meshes with the worm gear 320;

[0094] Specifically, connecting ears are respectively provided between the upper connecting arm 210, the lower connecting arm 220 and the shell 310, and between the upper bracket 110, the lower bracket 120 and the shell 310. The connecting ears are commonly used rotating connection structures that enable relative rotation between two connected components.

[0095] The upper connecting arm 210 and the lower connecting arm 220 are provided with gears 211 and 221 at corresponding ends thereof, and the gears 211 and 221 provided at one end of the upper connecting arm 210 and the lower connecting arm 220 are engaged with each other, so that the upper connecting arm 210 and the lower connecting arm 220 can swing relative to each other;

[0096] The housing 230 blocks the positions where the gears 211 and 221 are provided on the upper connecting arm 210 and the lower connecting arm 220 , and plays a protective role to prevent foreign objects from being entangled on the gears 211 and 221 .

[0097] like Figure 6 As shown, after the joint fixator is worn on the leg, when the user sits down, the angle between the thigh and the calf is approximately 90° or other angles, while when standing, the angle between the thigh and the calf is approximately 0°. Therefore, during the user's activities, the upper connecting arm 210 and the lower connecting arm 220 swing according to the different angles between the thigh and the calf.

[0098] In one embodiment, a strap fixing portion 316 is provided on the housing 310; Figure 1 As shown, when the user wears the joint fixator, in order to fix it, the user passes the strap through the strap fixing part 316 to better fix the joint fixator on the leg to prevent falling.

[0099] Furthermore, on the first connection side 01, the movable module 200 and the upper bracket 110 are connected via an elastic deformation sheet 130, and the movable module 200 and the lower bracket 120 are connected via an elastic deformation sheet 130; the elastic deformation sheet 130, as the name implies, has a certain deformation ability and can produce a certain deformation when cooperating with leg movements, making it more comfortable for users to use.

[0100] The joint fixator of the utility model is worn on the limbs, and the limbs can move freely. After the first connection side 01 and the second connection side 02 clamp the limbs, the angle adjustment module 300 is adjusted according to the different leg shapes of the user to adjust to a comfortable wearing position;

[0101] When it is adjusted to a comfortable wearing position, the specific data parameters are shown in the display window. When the user removes the joint fixator, he can record the current adjustment data. When wearing it again, he can directly adjust it to the last adjustment data. There is no need to make multiple adjustments and tests, which makes it more convenient to use.

[0102] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A joint fixator, comprising: Two brackets and a connecting mechanism connected between the two brackets, characterized in that: The connecting mechanism comprises: a movable module and an angle adjustment module, wherein the angle adjustment module is arranged between the movable module and the bracket; The angle adjustment module comprises: A housing, rotatably connected to the movable module and the bracket; A worm wheel and a worm, one of which is arranged at the connection between the housing and the movable module or at the connection between the housing and the bracket, and the other is installed in the housing; When the synchronous gear, worm wheel and worm rotate, the synchronous gear is driven to rotate; External force drives the worm wheel and the worm to rotate, causing the housing to swing relative to the movable module or the bracket; The housing is provided with a display window, a data disk is provided corresponding to the display window, and the synchronous gear drives the data disk to rotate.

2. A joint fixator according to claim 1, characterized in that: A surface of the synchronous gear is provided with a data mark to form the data disk; or a data disk is coaxially fixedly mounted on the synchronous gear, and a surface of the data disk is provided with a data mark.

3. A joint fixator according to claim 2, characterized in that: There are at least two synchronous gears, wherein the first synchronous gear is fixed to the worm, and the multiple synchronous gears rotate synchronously; The data mark is arranged on one of the synchronous gears to form a data disk.

4. The joint fixator according to claim 2, characterized in that: The housing is provided with an indication mark corresponding to the display window.

5. The joint fixator according to claim 1, characterized in that: The housing is also provided with an adjustment port, through which the worm is driven to rotate by a tool.

6. The joint fixator according to claim 1, characterized in that: The housing is also provided with a power assembly, which drives the worm and the worm to rotate.

7. The joint fixator according to claim 1, characterized in that: The movable module comprises: two connecting arms and a housing, One end of the connecting arm is connected to the housing through a rotating shaft, the worm gear is fixedly mounted on the rotating shaft or the worm gear is formed on the rotating shaft, the worm is mounted on the housing and engages with the worm gear; the housing and the bracket are connected through a movable shaft.

8. The joint fixator according to claim 7, characterized in that: Connecting ears are respectively arranged between the connecting arm and the shell, and between the bracket and the shell.

9. The joint fixator according to claim 7, characterized in that: The two connecting arms are provided with gears at corresponding ends thereof, and the gears provided at one end of the two connecting arms mesh with each other, so that the two connecting arms can swing relative to each other; The shell covers the position where the connecting arm is provided with the gear.

10. A joint fixator according to any one of claims 1 to 9, characterized in that: The two brackets include: an upper bracket and a lower bracket, and an angle adjustment module is arranged between the movable module and the upper bracket and / or between the movable module and the lower bracket; The housing is provided with a strap fixing portion.

11. The joint fixator according to claim 10, characterized in that: The upper bracket and the lower bracket are covered on the limb, and the inner side of the limb is the first connection side between the upper bracket and the lower bracket, and the outer side of the limb is the second connection side; On the first connection side, the movable module is connected to the upper bracket via an elastic deformation sheet, and the movable module is connected to the lower bracket via an elastic deformation sheet; On the second connection side, the movable module is connected to the upper bracket via the angle adjustment module, and the movable module is connected to the lower bracket via the angle adjustment module.

12. The joint fixator according to claim 11, characterized in that: The display window and the adjustment port are both located on the second connection side.

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