Ankle fusion structure and joint fusion device

Abstract

The invention relates to the technical field of medical instruments, and discloses an ankle fusion structure which comprises an ankle fusion body, the ankle fusion body comprises an ankle body, a first positioning nail is arranged in the ankle body, a second positioning nail penetrating through the first positioning nail is arranged in the ankle body, and the first positioning nail and the second positioning nail are arranged in the ankle body. And a third positioning nail penetrating through the first positioning nail is arranged in the ankle main body. According to the ankle fusion structure and the joint fusion device, the first positioning nail, the second positioning nail and the third positioning nail are arranged, the first positioning nail is a main nail and can effectively fuse and connect the ankle joint, the second positioning nail can effectively fix the first positioning nail, and the third positioning nail can effectively reinforce the first positioning nail; by arranging the clamping block, the foot is placed on the bottom plate, the heel is tightly attached to the side plate, and then the leg rod is preliminarily fixed through the first adjusting belt.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a foot-ankle fusion structure and a joint fusion device. Background Art

[0002] Arthrodesis is an artificially guided surgery to strengthen the bones of the joints, which eventually leads to the process of bone fusion. The ankle joint is one of the main weight-bearing joints of the human body, formed by the tibia, the lower end of the fibula and the talus. It is a flexor-valvular joint with close connection between the articular surfaces. Its main function is flexion and extension in the coronal axis. It is an important joint that transforms the body's gravity from a vertical column to an arched plane load-bearing form. Ankle fusion is an effective means to stop the disease, relieve pain, correct deformity and provide joint stability. Ankle fusion is to implant autologous bone between the tibia and fibula of the patient's lower leg and the talus of the foot (that is, the ankle joint) to connect the two into one, so that the ankle joint forms a bony fusion, thereby ultimately eliminating the patient's ankle pain and maintaining basic walking and movement functions.

[0003] At present, the ankle fusion structure and arthrodesis device on the market have been widely used. Ankle fusion is a kind of osteosynthesis and a new development trend of modern fracture fixation. It adopts fracture compression reduction technology and uses intramedullary implant central axis fixation to maintain fracture alignment, minimize surgical exposure and soft tissue stripping, and improve fracture healing rate. Ankle fusion structure is usually used in the treatment of femoral neck fracture. The injured part is fixed by surgical technique to facilitate the recovery of the injured part. However, most ankle fusion structures and arthrodesis devices lack positioning during use. For example, traditional ankle joint When the fusion screw is fixed, the ankle joint needs to maintain a functional position of 90° away from the body. The screw needs to be driven into the calcaneus from the top of the talus from front to back, or vertically upward from the sole of the foot through the calcaneus and the top of the talus to the distal end of the tibia. The ideal position is not easy to grasp. During the operation, the fusion positioning is generally entirely dependent on the doctor's manual factors. During the operation, the guide needle is often required to fix the ankle multiple times to obtain the best position. The operation time is long and the trauma is large. In addition, the foot and ankle parts of the existing ankle fusion positioning devices are fixed and cannot be adjusted. Such a single-specification ankle fusion positioning device cannot be suitable for different patients, resulting in a significant reduction in its practicality and applicability. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a foot-ankle fusion structure and a joint fusion device, which have the advantage of being easy to use and solve the problem of the lack of positioning of most foot-ankle fusion structures and joint fusion devices during use. For example, when traditional ankle fusion screws are used for fixation, the ankle joint needs to maintain a functional position of 90° away from the body, and the screws need to be driven into the calcaneus from the top of the talus from front to back and downward, or from the sole of the foot vertically upward through the calcaneus and the top of the talus to the distal end of the tibia. The ideal position is not easy to grasp, and the fusion positioning is generally entirely dependent on the doctor's manual factors during the operation. During the operation, guide needles are often required to be fixed multiple times to obtain the optimal position. The operation time is long and the trauma is large. In addition, the foot and ankle parts of the existing ankle fusion positioning devices are all fixed and cannot be adjusted. Therefore, the ankle fusion positioning device of such a single specification cannot be suitable for different patients, resulting in a significant reduction in the practicality and applicability of its use.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of easy use, the present invention provides the following technical solutions: an ankle fusion structure, including an ankle fusion body, the ankle fusion body including an ankle body, a first positioning nail is arranged inside the ankle body, a second positioning nail is arranged inside the ankle body and passes through the first positioning nail, and a third positioning nail is arranged inside the ankle body and passes through the first positioning nail.

[0008] A joint fusion device comprises a side plate and a bottom plate, wherein the bottom of the side plate is connected to the right side of the bottom plate via a first adjustment mechanism, the side plate is provided with a positioning mechanism, a first adjustment belt is fixedly mounted on the side plate, an alarm is fixedly mounted on the front side of the side plate, an indicator light is fixedly mounted on the front side of the side plate and on the top of the alarm, a second adjustment mechanism is provided on the bottom plate, a through opening is opened on the bottom plate, and a controller is fixedly mounted inside the side plate.

[0009] Preferably, the first adjusting mechanism includes a first rotating rod, a first rotating rod extending into the interior of the side panel is movably installed on the front exterior of the side panel, a first bearing connected to the first rotating rod is fixedly installed on the front and rear inner walls of the side panel, a connecting plate connected to the left side of the bottom panel is fixedly installed on the exterior of the first rotating rod, a protective cover is fixedly installed on the bottom of the side panel, a telescopic rod is fixedly installed on the interior of the protective cover, a spring is sleeved on the exterior of the telescopic rod, a positioning ball is fixedly installed on the bottom of the telescopic rod, a sliding groove matched with the positioning ball is provided on the connecting plate, a positioning groove communicating with the sliding groove is provided on the connecting plate, and a sensor is fixedly installed on the interior of the positioning groove.

[0010] Preferably, the positioning mechanism includes a second rotating rod, a second rotating rod extending into the interior of the side panel is movably installed on the front exterior of the side panel, second bearings connected to the second rotating rod are fixedly installed on the front and rear inner walls of the side panel, two sliders are movably installed on the exterior of the second rotating rod, guide rods connected to the inner wall of the side panel are fixedly installed on the top and bottom of the second rotating rod, auxiliary blocks are movably installed on the exterior of the two guide rods, and clamping blocks connected to the auxiliary blocks are fixedly installed on the left side of the two sliders and located on the left exterior of the side panel.

[0011] Preferably, the second adjustment mechanism comprises a fixing rod, the fixing rod is fixedly installed inside the front side of the base plate, a moving block extending to the outside of the front side of the base plate is movably installed outside the fixing rod, and a second adjustment belt is fixedly installed on the front side of the moving block.

[0012] Preferably, the first adjustment strap and the second adjustment strap are both provided with a Velcro hook surface and a fleece surface, and a moving groove matched with the moving block is provided on the front side of the bottom plate.

[0013] Preferably, a movable groove adapted to the sliding block and the auxiliary block is provided on the left side of the side plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a foot-ankle fusion structure and a joint fusion device, which have the following beneficial effects:

[0016] 1. The ankle fusion structure and joint fusion device are provided with a first positioning nail, a second positioning nail and a third positioning nail. The first positioning nail is a main nail that can effectively fuse and connect the ankle joint, the second positioning nail can effectively fix the first positioning nail, and the third positioning nail can effectively reinforce the first positioning nail, so that the ankle is relatively stable during the fusion process.

[0017] 2. The ankle fusion structure and joint fusion device are provided with a clamping block. The foot is first placed on the bottom plate with the heel close to the side plate. The leg rod is then initially fixed by the first adjustment belt. The second adjustment belt is then adjusted to the required position by the movable block and the fixed rod. The second adjustment belt is pulled to initially fix the instep. The second rotating rod is then rotated to make it rotate stably through the second bearing. The rotation of the second rotating rod drives the two sliders to move relative to the thread. The movement of the slider drives the clamping block to move. The clamping block can move stably through the cooperation between the auxiliary block and the guide rod. The ankle is secondarily fixed by the relative movement of the two clamping blocks, so that the ankle can be fixed during fusion.

[0018] 3. The ankle fusion structure and joint fusion device, by setting a sensor, first rotates the first rotating rod to make it rotate stably through the first bearing, the rotation of the first rotating rod drives the connecting plate to rotate, the rotation of the connecting plate drives the bottom plate to rotate to adjust the angle, and at the same time the positioning ball slides in the slide groove on the connecting plate, and can be freely extended and retracted through the cooperation between the telescopic rod and the spring. When the positioning ball moves to the positioning groove and touches the sensor, the bottom plate and the side plate are in a vertical state. At this time, the sensor feeds back to the controller, and the controller controls the alarm and indicator light to remind, so that the angle of the ankle can be accurately adjusted when fused, achieving the effect of easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the joint fusion device of the present invention;

[0020] Figure 2 This is a schematic diagram of the foot-ankle fusion structure of the present invention;

[0021] Figure 3 It is a schematic front view of the whole of the present invention;

[0022] Figure 4 It is a left side cross-sectional view of the partial joint fusion device of the present invention;

[0023] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0024] Figure 6 It is a top cross-sectional view of the partial joint fusion device of the present invention;

[0025] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0026] Figure 8 It is a connection diagram of the control system of the present invention.

[0027] In the figure: 1. ankle fusion body; 101. ankle body; 102. first positioning pin; 103. second positioning pin; 104. third positioning pin; 2. side plate; 3. bottom plate; 4. first adjusting mechanism; 401. first rotating rod; 402. first bearing; 403. connecting plate; 404. protective cover; 405. telescopic rod; 406. spring; 407. positioning ball; 408. slide groove; 409. positioning groove; 410. sensor; 5. positioning mechanism; 501. second rotating rod; 502. second bearing; 503. slider; 504. guide rod; 505. auxiliary block; 506. clamping block; 6. first adjusting belt; 7. alarm; 8. indicator light; 9. second adjusting mechanism; 901. fixing rod; 902. moving block; 903. second adjusting belt; 10. through port; 11. controller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-8 A foot-ankle fusion structure includes an ankle fusion body 1, the ankle fusion body 1 includes an ankle body 101, a first positioning nail 102 is a main nail, which can effectively fuse the ankle joint, the first positioning nail 102 is arranged inside the ankle body 101, the second positioning nail 103 that penetrates the first positioning nail 102 is arranged inside the ankle body 101, the second positioning nail 103 can effectively fix the first positioning nail 103, the third positioning nail 104 that penetrates the first positioning nail 102 is arranged inside the ankle body 101, and the third positioning nail 104 can effectively reinforce the first positioning nail 103.

[0030] A joint fusion device includes a side plate 2 and a bottom plate 3. The bottom of the side plate 2 is connected to the right side of the bottom plate 3 through a first adjustment mechanism 4. A positioning mechanism 5 is provided on the side plate 2. A first adjustment belt 6 is fixedly installed on the side plate 2. An alarm 7 is fixedly installed on the front side of the side plate 2. An indicator light 8 is fixedly installed on the front side of the side plate 2 and on the top of the alarm 7. A second adjustment mechanism 9 is provided on the bottom plate 3. A through opening 10 is opened on the bottom plate 3. A controller 11 is fixedly installed inside the side plate 3.

[0031] In the case implementation, the first adjustment mechanism 4 includes a first rotating rod 401. The front outer side of the side panel 2 is movably equipped with a first rotating rod 401 extending into the interior thereof. The first rotating rod 401 is rotated to make it rotate stably through the first bearing 402. The front and rear inner walls of the side panel 2 are fixedly equipped with first bearings 402 connected to the first rotating rod 401. The outside of the first rotating rod 401 is fixedly equipped with a connecting plate 403 connected to the left side of the bottom plate 3. The rotation of the first rotating rod 401 drives the connecting plate 403 to rotate. The rotation of the connecting plate 403 drives the bottom plate 3 to rotate to adjust the angle. A protective cover 404 is fixedly installed at the bottom of the side panel 2. A telescopic rod 405 is fixedly installed inside the protective cover 404. A spring 406 is sleeved on the outside of the telescopic rod 405. A positioning ball 407 is at The connecting plate 403 slides in the slide groove 408 and can be freely extended and retracted through the cooperation between the telescopic rod 405 and the spring 406. A positioning ball 407 is fixedly installed at the bottom of the telescopic rod 405. A slide groove 408 adapted to the positioning ball 407 is provided on the connecting plate 403. A positioning groove 409 communicating with the slide groove 408 is provided on the connecting plate 403. A sensor 410 is fixedly installed inside the positioning groove 409. When the positioning ball 407 moves to the positioning groove 409 and touches the sensor 410, the bottom plate 3 and the side plate 2 are in a vertical 90-degree state. At this time, the sensor 410 feeds back to the controller 11, and the controller 11 controls the alarm 7 and the indicator light 8 to remind, so that the angle of the ankle can be accurately adjusted when the foot and ankle are fused, thereby achieving the effect of easy use.

[0032] In the case implementation, the positioning mechanism 5 includes a second rotating rod 501, and the front side of the side plate 2 is movably installed with a second rotating rod 501 extending into the inside thereof. The outside of the second rotating rod 501 is provided with two sections of threaded rings, and the threaded rings are bidirectional. The inner walls of the front and rear sides of the side plate 2 are fixedly installed with second bearings 502 connected to the second rotating rod 501, so that the second rotating rod 501 can be rotated stably through the second bearings 502. The outside of the second rotating rod 501 is movably installed with two sliders 503. The rotation of the second rotating rod 501 drives the two sliders 503 to move relative to the thread. The movement of the slider 503 drives the clamping block 506 to move. The top and bottom of the second rotating rod 501 are fixedly installed with guide rods 504 connected to the inner wall of the side plate 2. The outside of the two guide rods 504 are movably installed with auxiliary blocks 505. The left side of the two sliders 503 and the outside of the left side of the side plate 2 are fixedly installed with clamping blocks 506 connected to the auxiliary blocks 505. The clamping blocks 506 can move stably through the cooperation between the auxiliary blocks 505 and the guide rods 504. The ankle is fixed for a second time through the relative movement of the two clamping blocks 506, so that the ankle can be fixed during fusion.

[0033] In the case implementation, the second adjustment mechanism 9 includes a fixed rod 901, which is fixedly installed inside the front side of the base plate 3, and a moving block 902 extending to the outside of the front side of the base plate 3 is movably installed outside the fixed rod 901. A sliding hole compatible with the fixed rod 901 is opened inside the moving block 902, and a second adjustment belt 903 is fixedly installed on the front side of the moving block 902. The second adjustment belt 903 is pulled to drive the moving block 902 to slide outside the fixed rod 901, and the second adjustment belt 903 is adjusted to the required position through the moving block 902 and the fixed rod 901.

[0034] In the case implementation, the first adjustment strap 6 and the second adjustment strap 903 are both provided with Velcro hook surface and fleece surface. The first adjustment strap 6 can be used to preliminarily fix the leg rod, and the second adjustment strap 903 can be used to preliminarily fix the instep.

[0035] When implementing, follow these steps:

[0036] 1) First place the foot on the bottom plate 3, with the heel close to the side plate 2, and initially fix the leg rod with the first adjustment belt 6;

[0037] 2) Then, the second adjustment belt 903 is adjusted to a desired position through the moving block 902 and the fixing rod 901, and the second adjustment belt 903 is pulled to preliminarily fix the instep;

[0038] 3) The second rotating rod 501, the second bearing 502, the slider 503, the auxiliary block 505 and the guide rod 504 cooperate to make the two clamping blocks 506 move relative to each other to fix the ankle for a second time;

[0039] 4) Through the cooperation among the first rotating rod 401, the first bearing 402, the connecting plate 403, the positioning ball 407, the sliding groove 408, the telescopic rod 405 and the spring 406, when the positioning ball 407 moves to the positioning groove 409 and contacts the sensor 410, the bottom plate 3 and the side plate 2 are in a vertical 90-degree state;

[0040] 5) Finally, the sensor 410 feeds back to the controller 11, and the controller 11 controls the alarm 7 and the indicator light 8 to give a reminder, so that the angle of the ankle can be accurately adjusted when the ankle is fused.

[0041] In summary, the ankle fusion structure and joint fusion device, by setting the first positioning nail 102, the second positioning nail 103 and the third positioning nail 104, the first positioning nail 102 is the main nail that can effectively fuse the ankle joint, the second positioning nail 103 can effectively fix the first positioning nail 103, and the third positioning nail 104 can effectively reinforce the first positioning nail 103, so that the ankle is relatively stable during the fusion process. By setting the clamping block 506, the foot is first placed on the bottom plate 3, and the heel is close to the side plate 2, and then the leg rod is initially adjusted by the first adjustment belt 6. The second adjusting belt 903 is then adjusted to the desired position through the movable block 902 and the fixed rod 901, and the second adjusting belt 903 is pulled to preliminarily fix the instep, and then the second rotating rod 501 is rotated to make it rotate stably through the second bearing 502. The rotation of the second rotating rod 501 drives the two sliders 503 to move relative to the thread, so that the movement of the slider 503 drives the clamping block 506 to move. The clamping block 506 can move stably through the cooperation between the auxiliary block 505 and the guide rod 504. The ankle is fixed for the second time through the relative movement of the two clamping blocks 506, so that the ankle can be fixed during fusion.

[0042] In addition, by setting the sensor 410, the first rotating rod 401 is first rotated to make it rotate stably through the first bearing 402. The rotation of the first rotating rod 401 drives the connecting plate 403 to rotate, and the rotation of the connecting plate 403 drives the bottom plate 3 to rotate to adjust the angle. At the same time, the positioning ball 407 slides in the slide groove 408 on the connecting plate 403, and can be freely extended and retracted through the cooperation between the telescopic rod 405 and the spring 406. When the positioning ball 407 moves to the positioning groove 409 and touches the sensor 410, the bottom plate 3 and the side plate 2 are in a vertical 90-degree state. At this time, the sensor 410 feeds back to the controller 11, and the controller 11 controls the alarm 7 and the indicator light 8 to remind, so that the angle of the ankle can be accurately adjusted when the foot and ankle are fused, achieving the effect of easy use.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foot-ankle fusion structure, comprising a foot-ankle fusion body (1), characterized in that: The ankle fusion body (1) comprises an ankle body (101), a first positioning nail (102) is arranged inside the ankle body (101), a second positioning nail (103) is arranged inside the ankle body (101) and passes through the first positioning nail (102), and a third positioning nail (104) is arranged inside the ankle body (101) and passes through the first positioning nail (102).

2. A joint fusion device, comprising a side plate (2) and a bottom plate (3), characterized in that: The bottom of the side panel (2) is connected to the right side of the bottom panel (3) through a first adjustment mechanism (4); a positioning mechanism (5) is provided on the side panel (2); a first adjustment belt (6) is fixedly mounted on the side panel (2); an alarm (7) is fixedly mounted on the front side of the side panel (2); an indicator light (8) is fixedly mounted on the front side of the side panel (2) and located on the top of the alarm (7); a second adjustment mechanism (9) is provided on the bottom panel (3); a through opening (10) is opened on the bottom panel (3); and a controller (11) is fixedly mounted inside the side panel (3).

3. The foot-ankle fusion structure and joint fusion device according to claim 2, characterized in that: The first adjustment mechanism (4) comprises a first rotating rod (401), the front outer part of the side plate (2) is movably provided with a first rotating rod (401) extending into the interior thereof, the inner walls on both the front and rear sides of the side plate (2) are fixedly provided with first bearings (402) connected to the first rotating rod (401), the outer part of the first rotating rod (401) is fixedly provided with a connecting plate (403) connected to the left side of the bottom plate (3), the bottom of the side plate (2) is fixedly provided with a protective cover (404), and the protective cover A telescopic rod (405) is fixedly installed inside (404), a spring (406) is sleeved on the outside of the telescopic rod (405), a positioning ball (407) is fixedly installed on the bottom of the telescopic rod (405), a sliding groove (408) adapted to the positioning ball (407) is provided on the connecting plate (403), a positioning groove (409) communicating with the sliding groove (408) is provided on the connecting plate (403), and a sensor (410) is fixedly installed inside the positioning groove (409).

4. The foot-ankle fusion structure and joint fusion device according to claim 2, characterized in that: The positioning mechanism (5) comprises a second rotating rod (501), a second rotating rod (501) extending into the interior of the front side of the side plate (2) is movably mounted on the outside, and a second bearing (502) connected to the second rotating rod (501) is fixedly mounted on the inner walls of the front and rear sides of the side plate (2), two sliders (503) are movably mounted on the outside of the second rotating rod (501), a guide rod (504) connected to the inner wall of the side plate (2) is fixedly mounted on the top and bottom of the second rotating rod (501), an auxiliary block (505) is movably mounted on the outside of the two guide rods (504), and a clamping block (506) connected to the auxiliary block (505) is fixedly mounted on the left side of the two sliders (503) and located on the left side of the side plate (2).

5. The foot-ankle fusion structure and joint fusion device according to claim 2, characterized in that: The second adjustment mechanism (9) comprises a fixed rod (901), the fixed rod (901) being fixedly mounted inside the front side of the base plate (3), a movable block (902) extending to the outside of the front side of the base plate (3) being movably mounted outside the fixed rod (901), and a second adjustment belt (903) being fixedly mounted on the front side of the movable block (902).

6. The foot-ankle fusion structure and joint fusion device according to claim 5, characterized in that: The first adjustment belt (6) and the second adjustment belt (903) are both provided with a Velcro hook surface and a fleece surface, and a moving groove adapted to the moving block (902) is provided on the front side of the bottom plate (3).

7. The foot-ankle fusion structure and joint fusion device according to claim 4, characterized in that: The left side of the side plate (2) is provided with a movable groove adapted to the sliding block (503) and the auxiliary block (505).

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