A multi-dimensional adjustable fusion system

Abstract

The present application relates to the field of fusion device, and relates to a multi-dimension adjustable fusion system, which comprises an outer fusion system and an inner fusion system, the outer fusion system comprises two outer openable fusion devices, the inner fusion system comprises two inner openable fusion devices, a rotating column and an angle adjusting device, the inner fusion device is clamped in the outer fusion device, the outer fusion device and the inner fusion device are provided with openable extension blocks outside, the extension blocks are provided with recovery grooves inside, the rotating column is arranged in the inner fusion device and adjusts the opening height of the inner fusion device, the angle adjusting device is arranged in the groove of the inner fusion device and adjusts the opening angle of the inner fusion device, multi-dimension adjustment of height, width and angle is realized, adjustment is more convenient, the contact area with the end plate is increased, the subsidence risk is reduced, and the fusion device and the intervertebral space are better fused.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fusion devices, and relates to a multi-dimensional adjustable fusion system. BACKGROUND

[0002] At present, minimally invasive surgery of the spine has become the main trend for treating intervertebral diseases. The traditional intervertebral fusion device is difficult to meet the needs of minimally invasive surgery, and it is difficult to adjust the width, height, angle and direction of the fusion device in multiple ways. There are problems such as sinking of the titanium mesh, incomplete matching of the custom-made titanium mesh and the decompression groove, and difficulty in evaluating the fusion state. Therefore, in order to solve the problems in the prior art, a multi-dimensional adjustable fusion system needs to be designed. SUMMARY

[0003] The present application provides a multi-dimensional adjustable fusion system to solve the problems in the prior art.

[0004] The purpose of the present application can be achieved by the following technical scheme: a multi-dimensional adjustable fusion system comprises an outer fusion system and an inner fusion system, the outer fusion system comprises two outer fusion devices that can be opened, the inner fusion system comprises two inner fusion devices that can be opened, a rotating column and an angle adjusting device, the inner fusion device is connected to the inside of the outer fusion device, the outer fusion device and the inner fusion device are provided with an open extension block on the outside, the inside of the extension block is provided with a recovery groove, the rotating column is arranged inside the inner fusion device and adjusts the opening height of the inner fusion device, and the angle adjusting device is arranged in the groove of the inner fusion device and adjusts the opening angle of the inner fusion device.

[0005] Further improvement, the outer fusion device is provided with a convex tooth on the outer side end face, the outer fusion device and the inner fusion device are provided with a communication bone window in the middle part, and the outer fusion device is provided with a bone window and an external communication through groove.

[0006] Further improvement, the outer fusion device is provided with a slot at the connection, the inner fusion device is provided with a plug-in block matching the slot at the front end, the inner fusion device is fixedly provided with a stepped T-shaped block at the end face, the inner side of the outer fusion device is provided with a T-shaped sliding groove matching the stepped T-shaped block, the inner part of the T-shaped sliding groove is provided with a clamping convex block inside the retreat groove, and the clamping convex block is clamped to the inner side of the stepped T-shaped block.

[0007] Further improvement, the inner layer financial device is internally provided with a channel, the rotating column comprises an upper column, a lower column, a spreading block, a wave bead screw, an outer sleeve and a rotating column, the upper column is inserted into the upper outer layer financial device, the middle part of the upper column is clamped into the channel of the upper inner layer financial device, the upper end of the lower column is slidably arranged in the upper column, the upper end of the lower column is provided with a stud with an increasing cross-sectional width downwards, the spreading block is arranged in the upper column and is threadedly connected to the stud, the side end of the spreading block is provided with a deformation groove, the upper end and the lower end of the rotating column are provided with threaded holes, the wave bead screw is arranged in the threaded holes, the outer sleeve is sleeved on the rotating column, the inner part of the outer sleeve is provided with an outer sleeve groove matched with the ball head of the wave bead screw, the bottom of the rotating column is inserted into the lower outer layer financial device, and the middle part of the rotating column is clamped into the channel of the lower inner layer financial device.

[0008] Further improvement, the angle adjusting device comprises a rear plate, a knob assembly, an eccentric wheel, a roller, a push plate, an inner rod, an outer rod and a spring, the lower end of the rear plate is fixed to the bottom of the groove, the knob assembly is rotationally arranged on the rear plate and is connected to the eccentric wheel, the roller is arranged in the eccentric wheel, the inner rod and the outer rod are slidably arranged on the left side of the rear plate, the left side of the push plate is slidably sleeved on the outer rod, the right side of the push plate is fixedly connected to the outer rod, the right side of the push plate is connected to the roller, the spring is sleeved on the inner rod and is located between the rear plate and the push plate, and the bottom end of the inner rod and the top end of the outer rod are provided with a locking buckle.

[0009] Further improvement, the knob assembly comprises a button, an eccentric shaft and a compression spring, the inner part of the rear plate is provided with a rotating groove, the middle part of the rotating groove is provided with a sliding push groove with a larger diameter than the rotating groove on the left side, the pressing part of the button is located in the sliding push groove, the compression spring is sleeved on the button in the sliding push groove, the middle part of the rotating groove is provided with a circular cone groove one on the right side, the rotating groove is provided with a ring-shaped interval tooth groove one located on the right side of the circular cone groove one, the right end surface of the button is provided with a tooth disc surface matched with the tooth groove one, the right end surface of the button is provided with a deformation groove, the middle part of the button is provided with an eccentric shaft hole, the right end surface of the eccentric shaft hole is provided with a circular cone protrusion, and the eccentric shaft is provided with a circular cone groove two matched with the circular cone protrusion.

[0010] Further improvement, the two ends of the outer layer financial device are provided with instrument holding grooves.

[0011] Compared with the prior art, the beneficial effects of the multi-dimensional adjustable fusion system are as follows:

[0012] 1. By the shape recovery ability and self-pressurization characteristics of the memory alloy, the adaptive preset height, width and angle of the outer layer financial device and the inner layer fusion device are realized, small incision fusion can be realized, the physiological curvature can be restored, and the biomechanical stability is high.

[0013] 2. The angle adjusting device of the inner layer fusion system, by rotating the eccentric shaft to control the roller in the eccentric wheel to rotate, and then drive the spring inside the roller connected rod body to do reciprocating motion, realize the angle adjustment of the rear end of the inner layer fusion device, increase the contact area with the end plate, and cooperate with the structure in the knob assembly to realize angle locking or unlocking;

[0014] 3. By rotating the rotating column, the height of the front end of the inner layer fusion system can be infinitely adjusted. By rotating the wave bead screw inside the rotating column, the upper and lower columns connected by threads are extended, the activity angle of the inner layer fusion system is adjusted, the contact area with the end plate is increased, the sinking risk is reduced, and the fusion device and the spinal gap are better fused. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of the present application

[0016] Figure 2 The structure diagram of the outer layer fusion device in the present application

[0017] Figure 3 The structure diagram of the inner layer fusion device in the present application

[0018] Figure 4 The structure diagram of the angle expansion of the inner layer fusion device before assembly in the present application

[0019] Figure 5 The structure diagram of the rotating column cross-section in the present application

[0020] Figure 6 The structure diagram of the angle adjusting device in the present application

[0021] Figure 7 The structure diagram of the normal rotation adjusting state of the knob assembly in the angle adjusting device in the present application

[0022] Figure 8 The structure diagram of the locking state of the knob assembly in the angle adjusting device in the present application

[0023] Figure 9 The structure diagram of the local structure of the internal cooperation view angle of the outer layer fusion device and the inner layer fusion device in the present application

[0024] Figure 10 The structure diagram of the connection between the expansion block and the lower column in the present application

[0025] In the figure, 1 - outer layer fusion system, 2 - inner layer fusion system, 3 - outer layer financial merger, 31 - convex tooth, 32 - bone window, 33 - through slot, 34 - slot, 35 - T-shaped sliding groove, 36 - retreat groove, 37 - clamping protrusion, 39 - connecting piece, 4 - inner layer financial merger, 41 - groove, 42 - plug-in block, 43 - stepped T-shaped block, 44 - channel, 5 - rotating column, 51 - upper column, 52 - lower column, 521 - threaded column, 53 - distraction block, 531 - deformation groove, 54 - wave bead screw, 541 - ball head, 55 - sleeve, 551 - sleeve groove, 56 - rotating column, 57 - threaded hole, 58 - middle clasp, 6 - angle adjusting device, 61 - rear plate, 611 - rotating groove, 612 - sliding push groove, 613 - circular cone groove one, 614 - tooth groove one, 62 - knob assembly, 621 - button, 622 - eccentric shaft, 623 - compression spring, 624 - pressing part, 625 - toothed disc surface, 626 - deformation groove, 627 - eccentric shaft hole, 628 - circular cone protrusion, 629 - circular cone groove two, 63 - eccentric wheel, 64 - roller, 65 - push plate, 66 - inner rod, 67 - outer rod, 68 - spring, 69 - locking buckle, 7 - extension block, 71 - recovery groove. DETAILED DESCRIPTION

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The following will be described in conjunction with the embodiments and drawings Figures 1-10 The technical solutions of the present application are further described.

[0029] Example 1

[0030] A multi-dimensional adjustable fusion system, comprising: an outer fusion system 1 and an inner fusion system 2, the outer fusion system 1 comprising two outer fusion splints 3 that can be opened, the inner fusion system 2 comprising two inner fusion splints 4 that can be opened, a rotating column 5 and an angle adjusting device 6, the inner fusion splints 4 are clamped inside the outer fusion splints 3, the outer fusion splints 3 and the inner fusion splints 4 outside are provided with openable extension blocks 7, the inside of the extension blocks 7 is provided with a recovery groove 71, the rotating column 5 is arranged inside the inner fusion splints 4 and adjusts the opening height of the inner fusion splints 4, and the angle adjusting device 6 is arranged in the groove 41 of the inner fusion splints 4 and adjusts the opening angle of the inner fusion splints 4.

[0031] As shown in Figures 1-10 The use principle of the present application is as follows: the wing-shaped extension blocks 7 in the outer fusion splints 3 in the outer fusion system 1 are recovered inside the recovery groove 71 according to the alloy characteristics after the panel of the outer fusion splints 3 is implanted in the intervertebral space, and the outer fusion system 1 is heated and opened to form a preset height, width and angle after being implanted in the intervertebral space, and then the inner fusion system 2 is implanted after the preset outer fusion system 1 is stable;

[0032] The wing-shaped extension blocks 7 in the inner fusion splints 4 function the same as the outer fusion splints 3, the height direction position of the inner fusion system 2 can be controlled and fixed through the bilateral rotating column 5, the inner fusion system 2 can be adjusted according to different intervertebral angles, the angle adjusting device 6 arranged at the tail side of the groove 41 of the inner fusion splints 4 is adjusted by using a tool, and is locked after the angle is confirmed. After the height, width and angle position of the inner fusion system is confirmed, it is implanted into the outer fusion system and locked.

[0033] After the whole is implanted in the intervertebral space, whether the overall angle position is reasonable can be confirmed again, the angle adjusting device can be used for adjustment again, and the implantation is completed after the angle is locked.

[0034] The present application is used for whole spinal segment intervertebral fusion and intervertebral replacement segment self-expanding memory alloy intervertebral fusion system. It includes cervical vertebra, cervicothoracic, thoracic vertebra, thoracolumbar, lumbar intervertebral fusion (ALIF, PLIF, TLIF, OLIF, XLIF, etc.), and also includes titanium mesh function (total or subtotal vertebral body resection); through the shape recovery ability and self-pressing characteristics of the memory alloy, the self-adaptive preset height, width and angle adjustment of the outer fusion splint and the inner fusion splint are realized, small incision fusion can be performed, the contact area with the endplate is increased, and the physiological curvature can be restored, which has strong biomechanical stability, provides a more convenient solution, and has reliable practical value, which is beneficial to the rapid, smooth and safe operation.

[0035] As a further preferred embodiment, the outer laminated financial instrument 3 is provided with a plurality of teeth 31 on the outer end surface, and the outer laminated financial instrument 3 and the inner laminated financial instrument 4 are provided with a plurality of bone graft windows 32 in the middle, and the outer laminated financial instrument 3 is provided with a plurality of through grooves 33 in communication with the outside.

[0036] As shown in Figure 2 , the teeth 31 are arranged on the end surface of the outer laminated financial instrument 3, increasing the contact area with the vertebral body and facilitating the stability of implantation, and the bone graft windows 32 provide blood supply holes to promote bone growth and improve fusion effect.

[0037] As a further preferred embodiment, the outer laminated financial instrument 3 is provided with a plurality of teeth 31 on the outer end surface, and the outer laminated financial instrument 3 and the inner laminated financial instrument 4 are provided with a plurality of bone graft windows 32 in the middle, and the outer laminated financial instrument 3 is provided with a plurality of through grooves 33 in communication with the outside.

[0038] As shown in Figure 2 , Figure 3 and Figure 9 , the outer laminated financial instrument 3 is connected by a connecting piece 39, and according to the metal characteristics of the connecting piece 39, the height adjustment between the outer laminated financial instrument 3 can be realized, the inner laminated financial instrument 4 is pushed into the T-shaped sliding groove 35 of the outer laminated financial instrument 3 along the T-shaped sliding groove 35 of the outer laminated financial instrument 3 until the clamping protrusion 37 moves outward along the retreat groove 36 so that the end of the clamping protrusion 37 is clamped into the end of the stepped T-shaped block 43, and the insertion block 42 at the end of the inner laminated financial instrument 4 is matched and clamped into the insertion slot 34 at the end of the laminated financial instrument 3, restricting the freedom in all directions, ensuring the stability of the connection between the outer laminated financial instrument 3 and the inner laminated financial instrument 4, and preventing it from falling off.

[0039] As a further preferred embodiment, the inner layer financial device 4 is internally provided with a channel 44, the rotating column 5 comprises an upper column 51, a lower column 52, a spreading block 53, a wave bead screw 54, an outer sleeve 55 and a rotating column 56, the upper column 51 is inserted into the upper outer layer financial device 3 at the top, the middle part of the upper column 51 is clamped into the channel 44 of the upper inner layer financial device 4, the upper end of the lower column 52 is slidingly arranged in the upper column 51, the upper end of the lower column 52 is provided with a stud 521 with an increasing cross-sectional width downward, the spreading block 53 is arranged inside the upper column 51 and is threadedly connected to the stud 521, the side end of the spreading block 53 is provided with a deformation groove 531, the upper end and the lower end of the rotating column 56 are provided with a threaded hole 57, the wave bead screw 54 is arranged in the threaded hole 57, the outer sleeve 55 is sleeved on the rotating column 56, the inner part of the outer sleeve 55 is provided with an outer sleeve groove 551 matched with the ball head 541 of the wave bead screw 54, the bottom of the rotating column 56 is inserted into the lower outer layer financial device 3, and the middle part of the rotating column 56 is clamped into the channel 44 of the lower inner layer financial device 4.

[0040] As shown in Figure 5 , the vertical position of the upper column 51 on the lower column 52 is adjusted, the upper column 51 drives the upper inner layer financial device 4 to adjust the height infinitely relative to the lower inner layer financial device 4, after adjusting to the specified position, the upper column 51 is rotated relative to the lower column 52, the rotation of the upper column 51 drives the internal spreading block 53 to rotate, since the spreading block 53 is threadedly connected to the stud 521 with an increasing cross-sectional width downward, the spreading block 53 will be spread and tightly pushed to the upper column 51 during the rotation process, realizing the locking of the upper column 51 and the lower column 52 after the height adjustment, the outer sleeve 55 is moved downward from the rotating column 56 to separate from the wave bead screw 54, the angle of the rotating column 56 and the lower column 52 relative to the wave bead screw 54 is adjusted, since the thread connection has the anti-loosening and anti-rotation effect during the angle adjustment, the internal height and the activity angle of the two inner layer financial devices 4 are adjusted, and the height and the angle are locked conveniently.

[0041] As a further preferred embodiment, the angle adjusting device 6 comprises a rear plate 61, a knob assembly 62, an eccentric wheel 63, a roller 64, a push plate 65, an inner rod 66, an outer rod 67 and a spring 68, the lower end of the rear plate 61 is fixed to the bottom of the groove 41, the knob assembly 62 is rotationally arranged on the rear plate 61 and is connected to the eccentric wheel 63, the roller 64 is arranged inside the eccentric wheel 63, the inner rod 66 and the outer rod 67 are slidingly arranged on the left side of the rear plate 61, the left side of the push plate 65 is slidingly sleeved on the outer rod 67, the right side of the push plate 65 is slidingly fixedly connected to the outer rod 67, the right side of the push plate 65 is connected to the roller 64, the spring 68 is sleeved on the inner rod 66 and is located between the rear plate 61 and the push plate 65, and the bottom end of the inner rod 66 and the top end of the outer rod 67 are provided with a locking buckle 69.

[0042] like Figure 6 As shown, the eccentric wheel 63 is driven to rotate by the knob assembly 62, and the eccentric wheel 63 drives the roller 64 to roll and move up and down, thereby driving the connected push plate 65 and the inner rod 66 to move back and forth, and the outer rod 67 moves in the opposite direction relative to the inner rod 66 to achieve the angle expansion of the rear end of the two inner alloy fusion device 4.

[0043] As a further preferred embodiment, the knob assembly 62 includes a button 621, an eccentric shaft 622 and a compression spring 623. A rotation groove 611 is provided inside the rear plate 61. A sliding push groove 612 having a diameter larger than that of the rotation groove 611 is provided on the left side of the middle of the rotation groove 611. The pressing portion 624 of the button 621 is located in the sliding push groove 612. The compression spring 623 is sleeved on the button 621 in the sliding push groove 612. A conical conical groove 612 is provided on the right side of the middle of the rotation groove 611. 13. The rotating groove 611 is provided with a tooth groove 1 614 arranged at an annular interval on the right side of the conical groove 1 613. The right end face of the button 621 is provided with a tooth disk surface 625 matching the tooth groove 1 614. The right end face of the button 621 is provided with a deformation groove 626. An eccentric shaft hole 627 is provided in the middle of the button 621. A conical protrusion 628 is provided on the right end face of the eccentric shaft hole 627. The eccentric shaft 622 is provided with a conical groove 2 629 matching the fixed conical protrusion 628.

[0044] like Figure 7 In the state shown, the conical projection 628 inside the button 621 is fixed in the conical conical groove 2 629 of the eccentric shaft 622. The eccentric shaft 622 rotates synchronously with the button 621. The toothed disc surface 625 outside the button 621 is located in the conical conical groove 1 613 of the rear plate 61. The button 621 can rotate relative to the rotation groove 611 of the rear plate 61.

[0045] At this time, rotating the eccentric shaft 622 can drive the outer eccentric wheel 63 to rotate, thereby realizing the angle expansion of the rear end of the two-petal inner alloy fusion device 4; when the angle needs to be locked, pressing the button 621 inwards squeezes the compression spring 623 inside the sliding push groove 612 through the pressing part 624. At this time, the deformation groove 626 of the button 621 deforms inwards, so that the outer toothed disk surface 625 is inserted into the toothed groove 1 614 on the right side from the conical groove 1 613, thereby realizing the locking of the button 621, and then locking the eccentric shaft 622 and then locking the eccentric wheel 63; when it needs to be unlocked, pressing the button 621 again, and the elastic force of the compression spring 623 causes the toothed disk surface 625 to withdraw from the toothed groove 1 614 to the conical groove 1 613, thereby unlocking the lock. The operation is simple and efficient, and it is convenient to adjust the angle again.

[0046] As a further preferred embodiment, both ends of the outer alloy fusion device 3 are provided with instrument holding grooves, which facilitate instruments to clamp the outer alloy fusion device 3 through the instrument holding grooves and place it into the body.

[0047] The preferred embodiments of the application have been described above in detail. It should be understood that modifications and variations to the preferred embodiments could be made by those skilled in the art in light of the teachings above. It is therefore contemplated that the application can encompass other variations and modifications that fall within the scope of the claims.

Claims

1. A multi-dimensional adjustable fusion system, characterized in that: include: An outer layer fusion system and an inner layer fusion system, the outer layer fusion system includes a two-flap openable outer layer alloy fusion device, the inner layer fusion system includes a two-flap openable inner layer alloy fusion device, a rotary column and an angle adjustment device, the inner layer alloy fusion device is clamped inside the outer layer alloy fusion device, the outer layer alloy fusion device and the outer side of the inner layer alloy fusion device are provided with an openable extension block, the inner side of the extension block is provided with a recovery groove, the rotary column is arranged inside the inner layer alloy fusion device and adjusts the expansion height of the inner layer alloy fusion device, the angle adjustment device is arranged in the groove of the inner layer alloy fusion device and adjusts the expansion angle of the inner layer alloy fusion device.

2. A multi-dimensional adjustable fusion system according to claim 1, characterized in that: The outer end surface of the outer alloy fusion device is provided with convex teeth, the middle part of the outer alloy fusion device and the inner alloy fusion device is provided with a bone grafting window connected, and the outer alloy fusion device is provided with a through groove connected with the bone grafting window and the outside.

3. The multi-dimensional adjustable fusion system according to claim 1, characterized in that: The outer alloy fusion device is provided with a slot at the connection, the front end of the inner alloy fusion device is provided with a plug-in block matching the slot, the end face of the inner alloy fusion device is fixed with a stepped T-block, the inner side of the outer alloy fusion device is provided with a T-shaped slide matching the stepped T-block, the inside of the outer alloy fusion device is provided with a retreat groove connected to the T-shaped slide, the inside of the T-shaped slide is provided with a snap-in protrusion located on the inner side of the retreat groove, and the snap-in protrusion is snapped into the inner side of the stepped T-block.

4. The multi-dimensional adjustable fusion system according to claim 1, characterized in that: The inner alloy fusion device is provided with a channel, and the rotating column includes an upper column, a lower column, a support block, a ball screw, a sleeve and a rotating column. The top of the upper column is inserted into the outer alloy fusion device on the upper side, and the middle part of the upper column is clamped in the channel of the upper inner alloy fusion device. The upper end of the lower column is slidably arranged in the upper column, and the upper end of the lower column is provided with a stud with a downwardly increasing cross-sectional width. The support block is arranged in the interior of the upper column and is threadedly connected to the stud. The side end of the support block is provided with a deformation groove, and the upper end of the rotating column and the lower end of the lower column are provided with threaded holes, the ball screw is arranged in the threaded hole, and the sleeve is sleeved on the rotating column. The inside of the sleeve is provided with a sleeve groove matching the ball head of the ball screw. The bottom of the rotating column is inserted into the outer alloy fusion device on the lower side, and the middle part of the rotating column is clamped in the channel of the lower inner alloy fusion device.

5. The multi-dimensional adjustable fusion system according to claim 1, characterized in that: The angle adjustment device includes a rear plate, a knob assembly, an eccentric wheel, a roller, a push plate, an inner rod, an outer rod and a spring. The lower end of the rear plate is fixed to the bottom of the groove, the knob assembly is rotatably set on the rear plate and connected to the eccentric wheel, the roller is set inside the eccentric wheel, the inner rod and the outer rod are slidably set on the left side of the rear plate, the left side of the push plate is slidably sleeved on the outer rod, the right side of the push plate is slidably fixedly connected to the outer rod, the right side of the push plate is connected to the roller, the spring is sleeved on the inner rod and is located between the rear plate and the push plate, and a locking buckle is provided at the bottom end of the inner rod and the top end of the outer rod.

6. A multi-dimensional adjustable fusion system according to claim 5, characterized in that: The knob assembly includes a button, an eccentric shaft and a compression spring. A rotation groove is provided inside the back plate, a sliding push groove with a diameter larger than the rotation groove is provided on the left side of the middle of the rotation groove, the pressing portion of the button is located in the sliding push groove, and the compression spring is sleeved on the button in the sliding push groove. A conical tapered groove is provided on the right side of the middle of the rotation groove, and the rotation groove is provided with a tooth groove one arranged in an annular space on the right side of the conical tapered groove one. A toothed disk surface matching the tooth groove one is provided on the right end face of the button, a deformation groove is provided on the right end face of the button, an eccentric shaft hole is provided in the middle of the button, a conical protrusion is provided on the right end face of the eccentric shaft hole, and a conical tapered groove two matching the fixed conical protrusion is provided on the eccentric shaft.

7. A multi-dimensional adjustable fusion system according to claim 1, characterized in that , instrument holding grooves are provided at both ends of the outer alloy fusion device.

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