Mechanical adjustment bone joint fixing device

Abstract

The invention relates to the field of bone joint correction, and particularly discloses a mechanical adjustment bone joint fixing device which comprises a detachable fixing mechanism and a support part used for assembling the detachable fixing mechanism, the support part is of an L-shaped structure and drives the detachable fixing mechanism to deform, the detachable fixing mechanism is of a cylindrical structure, and the detachable fixing mechanism is provided with a clamping groove. And the detachable fixing mechanism is mounted on the outer side of the bone joint. The four micro motors act to drive the oblique arms on the two sides and the supporting frame to achieve combination of two kinds of correction, lateral correction and straightness correction are achieved according to different leg types needing to be corrected, then the leg types are restored to the standard leg types, the correction range can be adjusted during correction every time, the correction effect is improved through multiple times of small-amplitude correction, and the correction efficiency is improved. The correction period is shortened, the next correction scheme is carried out according to the correction effect of each small period, and the overall bone joint fixing and correction effects are improved.

Description

Technical Field

[0001] The present invention relates to the field of bone and joint correction, and more particularly to a mechanically adjusted bone and joint fixing device. Background Art

[0002] Knee joint deformity mainly refers to the change of anatomical relationship of knee joint due to injury or disease, abnormal alignment and force line of knee joint will also change, which will lead to abnormal function of knee joint. Common knee joint deformity, such as bow legs or X-shaped legs, are common in daily life. This situation is mainly seen in varus and valgus deformity of knee joint.

[0003] The knee joint may also experience anterior and posterior deformations, such as hyperextension of the knee. Injuries can directly cause changes in the structure and position of the knee joint. Inflammation, meniscus disease, or soft tissue disease can lead to an imbalance of strength in the knee joint. Over time, it can cause changes in the bone and structure of the knee joint, resulting in corresponding deformation and deformity of the knee joint.

[0004] Existing corrections are all performed by wearing a brace, but the brace is a one-time extrusion correction, which leads to poor patient experience, poor adjustment effect after fixation, a long cycle, and is not conducive to the simultaneous correction of anterior-posterior deformation and valgus and valgus. During continuous correction, it is not conducive to the recovery of the patient's deformity. Summary of the invention

[0005] The present invention provides a mechanically adjustable bone joint fixation device, which solves the technical problem in the related art that front-back deformation and inside-out eversion cannot be achieved simultaneously.

[0006] According to one aspect of the present invention, a mechanically adjustable bone joint fixation device is provided, comprising a detachable fixing mechanism and a bracket member for assembling the detachable fixing mechanism, wherein the bracket member is an L-shaped structure, and the bracket member drives the detachable fixing mechanism to deform, the detachable fixing mechanism is a cylindrical structure, and the detachable fixing mechanism is installed on the outside of the bone joint; The detachable fixing mechanism includes a correction frame, a meshing piece, a connecting screw and a strap set. The correction frame includes two horseshoe-shaped frame bodies, and the middle parts of the horseshoe-shaped frame bodies are connected by a meshing piece. The connecting screw is installed on the outer wall of the meshing piece. The strap set is installed at both ends of the correction frame. The strap set and the correction frame enclose a cavity for placing the bone joint. The bracket member includes a mounting plate, a driving member, a stretching mechanism, a deformation bracket and a lifting mechanism. A support seat is installed on the side wall of the mounting plate. The lifting mechanism is installed on the outer wall of the support seat. The lifting mechanism moves along the axial direction of the support seat. The driving member is installed on the outer wall of the mounting plate, and the stretching mechanism is connected to the driving member. The deformation bracket is installed at the end of the stretching bracket. The stretching mechanism drives the stretching bracket to bend to one side of the mounting plate, or the stretching mechanism drives the stretching bracket to deflect to one side. The lifting mechanism is installed at the bottom end of the deformation bracket, and the detachable fixing mechanism is installed inside the deformation bracket.

[0007] Furthermore: the engagement member includes but is not limited to a ratchet structure that meshes with each other, and the correction frames on both sides rotate through two engagement members that mesh with each other.

[0008] Furthermore, the strap set includes a front strap and a rear strap, the front strap is installed between the inner side walls of the correction frame, and the rear strap is installed on the outer wall of the end of the correction frame.

[0009] Furthermore: the correction frame includes an outer frame and an inner frame, and the inner frame is attached to the inner wall of the outer frame, and the inner frame is made of flexible material, and the outer frame is made of hard material.

[0010] Furthermore: the deformable bracket includes a hinge seat and a mounting frame, a hinge rod is provided between the end of the mounting frame and the end of the hinge seat, L-shaped fixing frames are symmetrically provided on both sides of the mounting frame, and fixed axis plates are provided on the inner walls of both sides of the mounting frame, and the fixed axis plates are used to position and install the connecting screws.

[0011] Furthermore: the lifting mechanism includes a standing seat and a sliding rod, the sliding rod is vertically inserted into the inner wall of the standing seat, the outer wall of the end of the standing seat is provided with a sliding mechanism, and the end of the sliding mechanism is slidably connected to the outer wall of the support seat.

[0012] Further: the end of the standing seat is slidably connected to the side outer wall of the supporting seat Furthermore: the sliding mechanism includes a T-shaped portion and a limiting portion, the limiting portion is installed at the end of the T-shaped portion, the bottom end of the sliding rod is inserted into the inner wall of the limiting portion, and the end of the T-shaped portion is connected to the bottom end of the deformable bracket through a hinge.

[0013] Furthermore: the stretching mechanism includes a screw seat, a sliding seat, an oblique arm and a support frame, the sliding seat is installed on the outer wall of the screw seat, and the ends of the two sliding seats are respectively connected to the side walls of the oblique arm and the support frame through hinges, and the other end of the support frame is movably connected to the outer wall of the oblique arm.

[0014] Furthermore: the driving component includes but is not limited to a micro motor, the micro motor is mounted on a mounting plate, and the output shaft of the micro motor is connected to the screw end in the screw seat.

[0015] The beneficial effects of the present invention are: This mechanically adjustable bone and joint fixation device utilizes four micro motors to operate separately, driving the oblique arms and support frames on both sides to realize the combination and independent operation of two corrections, and realizes lateral and straightness corrections according to different leg shapes that need to be corrected. At the same time, during each correction, the correction range can be adjusted and multiple small corrections can be made to improve the correction effect and shorten the correction cycle. The next correction plan can be carried out according to the correction effect of each small cycle to improve the overall bone and joint fixation and correction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a mechanically adjustable bone joint fixation device proposed by the present invention; Figure 2 It is a schematic diagram of the structure of a detachable fixing mechanism of a mechanically adjustable bone joint fixing device proposed by the present invention; Figure 3 yes Figure 2 Side view of Figure 4 It is an assembly diagram of a detachable fixing mechanism of a mechanically adjustable bone joint fixing device proposed by the present invention; Figure 5 It is a state-motion schematic diagram of a mechanically adjustable bone joint fixation device proposed by the present invention; Figure 6 The present invention provides a mechanically adjustable bone joint fixation device with two states of motion schematically shown in FIG.

[0017] In the figure: 100, mounting plate; 200, micro motor; 300, stretching mechanism; 310, screw seat; 320, support frame; 330, sliding seat; 340, oblique arm; 400, deformable bracket; 410, hinge seat; 420, mounting frame; 500, lifting mechanism; 510, standing seat; 520, sliding rod; 600, sliding mechanism; 700, detachable fixing mechanism; 710, correction frame; 711, outer frame; 712, inner frame; 720, engaging member; 730, connecting screw; 740, rear strap; 750, front strap; 800, support seat. DETAILED DESCRIPTION

[0018] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and is not a limitation of the scope of protection, applicability or examples set forth in the claims. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0019] Embodiment 1 See also Figure 1-Figure 6 As shown, a mechanically adjustable bone joint fixation device includes a detachable fixing mechanism 700 and a bracket member for assembling the detachable fixing mechanism 700, the bracket member is an L-shaped structure, and the bracket member drives the detachable fixing mechanism 700 to deform, the detachable fixing mechanism 700 is a cylindrical structure, and the detachable fixing mechanism 700 is installed to the outside of the bone joint; The detachable fixing mechanism 700 includes a correction frame 710, a meshing piece 720, a connecting screw 730 and a strap set. The correction frame 710 includes two horseshoe-shaped frames, and the middle parts of the horseshoe-shaped frames are connected by the meshing piece 720. The connecting screw 730 is installed on the outer wall of the meshing piece 720. The strap set is installed at both ends of the correction frame 710. The strap set and the correction frame 710 enclose a cavity for placing a bone joint. The bracket member includes a mounting plate 100, a driving member, a stretching mechanism 300, a deformable bracket 400 and a lifting mechanism 500. A support seat 800 is installed on the side wall of the mounting plate 100. The lifting mechanism 500 is installed on the outer wall of the support seat 800. The lifting mechanism 500 moves along the axial direction of the support seat 800. The driving member is installed on the outer wall of the mounting plate 100, and the stretching mechanism 300 is connected to the driving member. The deformable bracket 400 is installed at the end of the stretching bracket. The stretching mechanism 300 drives the stretching bracket to bend to one side of the mounting plate 100, or the stretching mechanism 300 drives the stretching bracket to deflect to one side. The lifting mechanism 500 is installed at the bottom end of the deformable bracket 400, and the detachable fixing mechanism 700 is installed inside the deformable bracket 400.

[0020] The engaging member 720 includes but is not limited to a ratchet structure that meshes with each other, and the correction frames 710 on both sides rotate through two engaging members 720 that mesh with each other.

[0021] The strap set includes a front strap 750 and a rear strap 740 . The front strap 750 is installed between the inner side walls of the correction frame 710 , and the rear strap 740 is installed on the outer wall of the end of the correction frame 710 .

[0022] The correction frame 710 includes an outer frame body 711 and an inner frame body 712, and the inner frame body 712 is attached to the inner wall of the outer frame body 711, and the inner frame body 712 is made of a flexible material, and the outer frame body 711 is made of a hard material, wherein the inner frame body can be a flexible layer composited by a rubber layer, a suede layer, etc., and the outer frame body can be made of a high-strength hard plastic or metal; The deformable bracket 400 includes a hinge seat 410 and a mounting frame 420, a hinge rod is provided between the end of the mounting frame 420 and the end of the hinge seat 410, L-shaped fixing frames are symmetrically provided on both sides of the mounting frame 420, and fixed axis plates are provided on the inner walls on both sides of the mounting frame 420, and the fixed axis plates are used to position and install the connecting screw 730.

[0023] The lifting mechanism 500 includes a standing seat 510 and a sliding rod 520. The sliding rod 520 is vertically inserted into the inner wall of the standing seat 510. The outer wall of the end of the standing seat 510 is provided with a sliding mechanism 600. The end of the sliding mechanism 600 is slidably connected to the outer wall of the support seat 800.

[0024] The end of the standing seat 510 is slidably connected to the outer wall of the side of the support seat 800. It should be supplemented that a set of sliding groove structures is provided between the end of the standing seat 510 and the side of the support seat 800; The sliding mechanism 600 includes a T-shaped portion and a limiting portion. The limiting portion is installed at the end of the T-shaped portion. The bottom end of the sliding rod 520 is inserted into the inner wall of the limiting portion. The end of the T-shaped portion is connected to the bottom end of the deformable bracket 400 through a hinge.

[0025] The stretching mechanism 300 includes a screw seat 310, a sliding seat 330, an inclined arm 340 and a support frame 320. The sliding seat 330 is installed on the outer wall of the screw seat 310, and the ends of the two sliding seats 330 are respectively connected to the side walls of the inclined arm 340 and the support frame 320 through hinges, and the other end of the support frame 320 is movably connected to the outer wall of the inclined arm 340.

[0026] It should also be noted that the spacing between the end of the support frame 320 and the oblique arm 340 is adjustable, and the support frame 320 and the oblique arm 340 are rotatably connected; It should be noted that the lead screw seat 310 includes a lead screw and a U-shaped seat body. The lead screw is installed between the two ends of the U-shaped seat body. The lead screw is used in conjunction with the sliding seat 330. The sliding seat 330 moves along the axis of the lead screw. The driving member includes but is not limited to a micro motor 200 . The micro motor 200 is mounted on the mounting plate 100 . The output shaft of the micro motor 200 is connected to the end of the lead screw in the lead screw seat 310 .

[0027] This bone joint fixation device is mainly aimed at the knee joint. When the knee joint is lesioned, it is a disease based on degenerative pathological changes. Congenital or untimely treatment will cause joint deformity and other diseases. The existing correction is through braces or surgical treatment. Braces are treated for a long time and squeeze the deformity or lesions, causing inconvenience in walking. The correction effect of the brace is not good. The correction needs to be divided into stages, so many braces have a long treatment cycle and poor effect. According to the existing situation, this bone joint fixation device is proposed, which is divided into two usage states. The specific operation process is as follows: State 1: The detachable fixing mechanism 700 is used independently. When it is used, the front strap 750 and the rear strap 740 are opened to fit the correction frame 710 to the outside of the leg shape to be corrected, and then the straps are tightened to limit the two sides of the leg shape. The knee is located between the two side engagement members 720. When it is bent at the knee, the upper side of the correction frame 710 will bend. As the knee bends, it moves accordingly. At the same time, the rigidity of the outer frame 711 can support the leg shape, and the inner frame 712 fits the leg skin to reduce friction and extrusion. State 2, the detachable fixing mechanism 700 is installed in the deformable bracket 400, and the specific installation position is to insert the rod end of the connecting screw 730 into the fixed axis plate of the mounting frame 420, and use a nut to lock the rod end position of the screw, and then the human foot stands on the standing seat 510, wherein the sliding rod 520 is adjusted during the connection process between the mounting frame 420 and the connecting screw 730 to adapt to different calf lengths and knee correction positions; After being fixed, the stretching mechanism 300 starts to move, that is, the micro motor 200 works, and the micro motor 200 on one side moves, driving the two sets of oblique arms 340 and the support frame 320 to move synchronously, that is, the calf needs to be corrected and stretched backward, which drives the angle between the support frame 320 and the oblique arm 340 to increase, that is, the oblique arm 340 drives the hinge seat 410 to be pulled toward one side of the mounting plate 100, forming an angle that drives the calf and the knee to tilt backward as a whole, thereby correcting the anterior-posterior deformity of the leg; The two groups of micro motors 200 on the same side work synchronously, driving the oblique arm 340 and the support frame 320 on one side to deform, and the two groups of micro motors 200 on the other side work synchronously, but the motors on both sides work in opposite directions, that is, the angle between one oblique arm 340 and the support frame 320 increases, and the angle between the other oblique arm 340 and the support frame 320 decreases, that is, driving the mounting frame 420 on one side to deflect toward the mounting frame 420 on the other side, driving the detachable fixing mechanism 700 between the mounting frames 420 to rotate sideways, thereby correcting the valgus and valgus deformity of the lower leg; At the same time, four micro motors 200 can be used to drive the oblique arms 340 and the support frame 320 on both sides to realize a combination of two corrections. According to the different leg shapes that need to be corrected, the lateral and straight corrections can be realized, and then the standard leg shape can be restored. During each correction, the correction range can be adjusted, and multiple small corrections can be made to improve the correction effect and shorten the correction cycle. The next correction plan can be carried out according to the correction effect of each small cycle to improve the overall bone and joint fixation and correction effect.

[0028] The embodiment of the present embodiment is described above in conjunction with the accompanying drawings, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of the present embodiment and the scope of protection of the claims, all of which are within the protection of the present embodiment.

Claims

1. A mechanically adjustable bone joint fixation device, comprising a detachable fixing mechanism (700) and a bracket for assembling the detachable fixing mechanism (700), characterized in that: The support member is in an L-shaped structure, and the support member drives the detachable fixing mechanism (700) to deform, the detachable fixing mechanism (700) is in a cylindrical structure, and the detachable fixing mechanism (700) is installed on the outside of the bone joint; The detachable fixing mechanism (700) comprises a correction frame (710), a meshing piece (720), a connecting screw (730) and a strap set, wherein the correction frame (710) comprises two horseshoe-shaped frame bodies, and the middle parts of the horseshoe-shaped frame bodies are connected via the meshing piece (720), the connecting screw (730) is mounted on the outer wall of the meshing piece (720), and the strap set is mounted on both ends of the correction frame (710), and the strap set and the correction frame (710) enclose a cavity for accommodating a bone joint; The support member comprises a mounting plate (100), a driving member, a stretching mechanism (300), a deformable support (400) and a lifting mechanism (500); a support seat (800) is mounted on the side wall of the mounting plate (100); the lifting mechanism (500) is mounted on the outer wall of the support seat (800); the lifting mechanism (500) moves along the axial direction of the support seat (800); the driving member is mounted on the outer wall of the mounting plate (100); the stretching mechanism (300) is connected to the driving member; the deformable support (400) is mounted at the end of the stretching support; the stretching mechanism (300) drives the stretching support to bend toward one side of the mounting plate (100); or the stretching mechanism (300) drives the stretching support to deflect toward one side; the lifting mechanism (500) is mounted at the bottom end of the deformable support (400); and a detachable fixing mechanism (700) is mounted inside the deformable support (400).

2. A mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The engagement member (720) includes but is not limited to a ratchet structure that meshes with each other, and the correction frames (710) on both sides rotate via two engagement members (720) that mesh with each other.

3. A mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The strap set comprises a front strap (750) and a rear strap (740), wherein the front strap (750) is installed between the inner side walls of the correction frame (710), and the rear strap (740) is installed on the outer wall of the end of the correction frame (710).

4. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The correction frame (710) comprises an outer frame body (711) and an inner frame body (712), wherein the inner frame body (712) is attached to the inner wall of the outer frame body (711), and the inner frame body (712) is made of a flexible material, while the outer frame body (711) is made of a hard material.

5. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The deformable bracket (400) comprises a hinge seat (410) and a mounting frame (420), a hinge rod is provided between the end of the mounting frame (420) and the end of the hinge seat (410), L-shaped fixing frames are symmetrically provided on both sides of the mounting frame (420), and fixed axis plates are provided on the inner walls of both sides of the mounting frame (420), and the fixed axis plates are used to position and install the connecting screw rod (730).

6. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The lifting mechanism (500) comprises a standing seat (510) and a sliding rod (520), wherein the sliding rod (520) is vertically plugged into the inner wall of the standing seat (510), and a sliding mechanism (600) is provided on the outer wall of the end of the standing seat (510), and the end of the sliding mechanism (600) is slidably connected to the outer wall of the support seat (800).

7. A mechanically adjustable bone joint fixation device according to claim 6, characterized in that: The end of the standing seat (510) is slidably connected to the side outer wall of the supporting seat (800).

8. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The sliding mechanism (600) comprises a T-shaped portion and a limiting portion, the limiting portion being mounted at the end of the T-shaped portion, the bottom end of the sliding rod (520) being plugged into the inner wall of the limiting portion, and the end of the T-shaped portion being connected to the bottom end of the deformable bracket (400) via a hinge.

9. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The stretching mechanism (300) comprises a screw seat (310), a sliding seat (330), an oblique arm (340) and a support frame (320); the sliding seat (330) is mounted on the outer wall of the screw seat (310), and the ends of the two sliding seats (330) are respectively connected to the side walls of the oblique arm (340) and the support frame (320) through hinges; the other end of the support frame (320) is movably connected to the outer wall of the oblique arm (340).

10. The mechanically adjustable bone joint fixation device according to claim 1, characterized in that: The driving component includes, but is not limited to, a micro motor (200); the micro motor (200) is mounted on the mounting plate (100); and the output shaft of the micro motor (200) is connected to the end of the lead screw in the lead screw seat (310).

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