Intervertebral fusion cage and implant device

Abstract

The present invention discloses an intervertebral fusion device, including a main body, the outer wall of the main body has a cylindrical surface, and the cylindrical surface is provided with gear teeth. The intervertebral fusion device of the present invention is convenient for adjusting the implantation angle of the intervertebral fusion device and reducing the deviation of the implantation angle. The present invention also discloses an implantation device, including: a shell, which has a hollow inner cavity, and the front end of the hollow inner cavity is provided with an opening; a first gear, which is rotatably arranged in the hollow inner cavity; a driving member, the driving member drives the first gear to rotate; a clamping mechanism, the clamping mechanism has a clamping cavity; an intervertebral fusion device, which is the above-mentioned intervertebral fusion device and various improved schemes thereof, the main body is rotatably arranged in the clamping cavity, and the first gear is meshed with the gear teeth for transmission. The implantation device of the present invention can adjust the implantation angle of the intervertebral fusion device during the implantation process, thereby improving the surgical efficiency and helping to reduce the surgical time. The present invention can be applied to a prosthesis that can be transplanted into the body.

Description

Technical Field

[0001] The present invention relates to the field of prostheses that can be transplanted into the body, and in particular to an intervertebral fusion cage and an implantation device. Background Art

[0002] Intervertebral fusion is an effective method for treating spinal degenerative diseases. At present, an implant device is used to implant an intervertebral fusion device into the human spine to restore the stability of the spine. When implanting an intervertebral fusion device, it is necessary to first determine the implantation angle of the intervertebral fusion device, and then install the intervertebral fusion device on the implant device at this implantation angle. The implant device then implants the intervertebral fusion device into the spine along the incision. However, it is difficult for the implant device to adjust the implantation angle of the intervertebral fusion device during the implantation process. If the implantation angle of the intervertebral fusion device deviates, the intervertebral fusion device needs to be removed and the implantation angle needs to be reset before being implanted again, resulting in a long operation time. Summary of the invention

[0003] The purpose of the present invention is to provide an intervertebral fusion cage and an implant device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] An intervertebral fusion device comprises a main body, wherein the outer wall of the main body is provided with a cylindrical surface, the cylindrical surface is provided with gear teeth, there are a plurality of gear teeth, and all the gear teeth are sequentially spaced along the circumference of the cylindrical surface.

[0006] The beneficial effects of the present invention are as follows: the main body is rotated around the vertical axis to determine the implantation angle, gear teeth are provided on the cylindrical surface of the main body of the intervertebral fusion device, and the gear teeth provide the main body with an accurate positioning reference, and a plurality of gear teeth are sequentially spaced along the circumference of the cylindrical surface, so that the cylindrical surface of the main body has a plurality of accurate positioning references, which facilitates the adjustment of the implantation angle of the intervertebral fusion device and reduces the deviation of the implantation angle.

[0007] As a further improvement of the above technical solution, with the axis of the cylindrical surface as the up-down direction, the main body is provided with a through hole, the through hole penetrates the main body along the up-down direction, and the top surface of the main body is an inclined surface with a lower front and a higher back.

[0008] The through hole penetrates the main body in the up-and-down direction, which helps to reduce the weight of the main body. When the main body is implanted in the intervertebral space of the spine, new bone of the spine can grow and form in the through hole, which helps to improve the bonding ability between the intervertebral fusion device and the new bone. The top surface of the main body is an inclined surface with a low front and a high back, which helps to insert the main body into the intervertebral space of the spine.

[0009] An implant device comprising:

[0010] A shell having a hollow inner cavity, wherein a front end of the hollow inner cavity is provided with an opening;

[0011] a first gear rotatably disposed in the hollow inner cavity, wherein teeth of the first gear extend in front of the opening;

[0012] A driving member, which is disposed in the hollow inner cavity, and the driving member drives the first gear to rotate;

[0013] A clamping mechanism, which is arranged on the housing, and has a clamping cavity, and the clamping cavity is located in front of the opening;

[0014] The intervertebral fusion device is the above-mentioned intervertebral fusion device and various improved solutions thereof, wherein the main body is rotatably arranged in the clamping cavity, and the first gear is meshed with the gear teeth for transmission.

[0015] The intervertebral fusion device is clamped in the clamping cavity by means of a clamping mechanism. When the intervertebral fusion device is implanted into the human spine, the first gear is driven to rotate by a driving member, and the first gear meshes with the gear teeth on the cylindrical surface of the intervertebral fusion device body for transmission, thereby causing the intervertebral fusion device body to rotate around the vertical axis in the clamping cavity. During the implantation process, the implantation device can adjust the implantation angle of the intervertebral fusion device according to the real-time situation of the operation, thereby improving the operation efficiency and helping to reduce the operation time.

[0016] As a further improvement of the above technical solution, the housing is provided with an axial hole, the axial hole passes through the hollow inner cavity along the front-to-back direction, and the driving member includes:

[0017] A rotating shaft, the rear end of which is rotatably disposed in the shaft hole, and the front end of the rotating shaft extends into the hollow inner cavity;

[0018] A worm, which is arranged at the front end of the rotating shaft, and the rotating shaft drives the worm to rotate;

[0019] A second gear, which is rotatably disposed in the hollow inner cavity, and the second gear is meshed with the worm for transmission;

[0020] The axis of the third gear is connected to the axis of the second gear, the third gear is linked with the second gear, and the third gear is meshed with the first gear for transmission.

[0021] When the shaft rotates, the shaft drives the worm to rotate, the worm is meshed with the second gear for transmission, the second gear is linked with the third gear, and the third gear is meshed with the first gear for transmission, so that the first gear drives the intervertebral fusion device to rotate around the vertical axis to adjust the implantation angle of the intervertebral fusion device. Since the driving member is driven by gear transmission, the implantation device can adjust the implantation angle of the intervertebral fusion device more accurately, has a compact structure, and works reliably, thereby avoiding failure of the driving member during the implantation process.

[0022] As a further improvement of the above technical solution, the shaft hole passes through the shell backwards, the rear end of the rotating shaft passes through the shaft hole backwards and extends to the outside, and a handle is provided at the rear end of the rotating shaft.

[0023] The axial hole passes through the shell backward, and the rear end of the rotating shaft extends out of the rear of the shell. A handle is provided at the rear end of the rotating shaft. During surgery, the rotating shaft is driven to rotate by turning the handle. The rotation of the rotating shaft changes the implantation angle of the intervertebral fusion device. During surgery, the handle is held by hand for operation, which facilitates precise control of the implant device.

[0024] As a further improvement of the above technical solution, an adjustment hole is provided on the side wall of the shell, and the adjustment hole connects the hollow inner cavity with the outside world. The rotating shaft is provided with an anti-slip layer, and the anti-slip layer is sleeved on the outer wall of the rotating shaft. The anti-slip layer is linked to the rotating shaft, and the adjustment hole is opposite to the anti-slip layer. The outer wall of the anti-slip layer protrudes out of the outside of the adjustment hole.

[0025] The anti-skid layer on the outer wall of the shaft protrudes from the outside of the adjustment hole on the side wall of the shell. The fingers press on the anti-skid layer to slide the shaft. The fingers rub the anti-skid layer to drive the shaft to rotate, so that the fingers can fine-tune the rotation of the shaft. The implantation angle of the intervertebral fusion device is finely adjusted through the anti-skid layer, thereby improving the adjustment accuracy of the implantation angle of the intervertebral fusion device.

[0026] As a further improvement of the above technical solution, a connecting portion is provided on the outer wall of the main body, the connecting portion protrudes outward, a connecting hole is formed between the connecting portion and the cylindrical surface, and the connecting hole extends along the circumference of the cylindrical surface, and the clamping mechanism includes:

[0027] A first clamping member is slidably disposed in the hollow inner cavity, the front end of the first clamping member passes through the opening and extends forward, a hook is provided at the front end of the first clamping member, the hook is inserted into the connecting hole, and the hook abuts against the cylindrical surface;

[0028] The second clamping member can be slidably arranged in the hollow inner cavity, the front end of the second clamping member passes through the opening and extends forward, and a stopper is provided at the front end of the second clamping member, the stopper abuts against the cylindrical surface, and the clamping cavity is formed between the stopper and the hook.

[0029] The outer wall of the main body of the intervertebral fusion device is provided with a connecting portion, and a connecting hole is formed between the connecting portion and the cylindrical surface. The hook at the front end of the first clamping piece of the clamping mechanism is inserted into the connecting hole, and the hook is abutted against the cylindrical surface. The front end of the second clamping piece of the clamping mechanism is provided with a stopper, and the stopper abuts against the cylindrical surface. A clamping cavity is surrounded by the hook and the stopper, so that the main body of the intervertebral fusion device is hung on the hook at the front end of the first clamping piece, and the first clamping piece is pulled backward to make the main body of the intervertebral fusion device press between the hook and the front outer wall of the shell, and then the second clamping piece is pushed forward to make the stopper abut against the cylindrical surface of the main body of the intervertebral fusion device, so that the intervertebral fusion device is fixed in the clamping cavity. When the implantation angle of the main body of the intervertebral fusion device needs to be changed, the driving member is used to drive the first gear to rotate, and the first gear is meshed with the gear teeth of the main body of the intervertebral fusion device for transmission, so that the main body of the intervertebral fusion device rotates around the vertical axis, and the hook of the first clamping piece and the connecting member are engaged with each other for transmission. The connecting holes slide relative to each other, thereby causing the main body of the intervertebral fusion device to rotate in the clamping cavity; after the intervertebral fusion device is placed in the intervertebral space of the spine, the spinal bones on the upper and lower sides of the intervertebral space are respectively pressed against the upper and lower sides of the intervertebral fusion device, so that the intervertebral fusion device no longer rotates. When the clamping mechanism needs to loosen the intervertebral fusion device, the second clamping piece is first pulled backward to separate the block from the cylindrical surface of the main body of the intervertebral fusion device, so that a gap appears on one side of the clamping cavity, and the first clamping piece is fixed to push the shell to move backward relative to the first clamping piece, so that the front end outer wall of the shell is separated from the main body of the intervertebral fusion device, and then the shell is rotated to make the hook of the first clamping piece slide relative to the connecting hole of the main body of the intervertebral fusion device, and finally the hook is detached from the connecting hole, thereby realizing the separation of the main body of the intervertebral fusion device and the implant device; the clamping mechanism of the implant device has a simple structure, is easy to control, and fits tightly with the intervertebral fusion device, avoiding greater damage to the spinal bones.

[0030] As a further improvement of the above technical solution, a first long slot hole and a second long slot hole are provided on the side wall of the shell, and the first long slot hole and the second long slot hole both extend in the front-to-back direction, and the first long slot hole connects the hollow inner cavity with the outside world, and a first slider is provided on the outer wall of the first clamping member, and the first slider can be slidably arranged in the first long slot hole forward and backward, and the first slider extends out of the shell, and the second long slot hole connects the hollow inner cavity with the outside world, and a second slider is provided on the outer wall of the second clamping member, and the second slider can be slidably arranged in the second long slot hole forward and backward, and the second slider extends out of the shell.

[0031] The first slider is pushed outside the shell to slide back and forth in the first long slot hole, so as to realize the forward and backward sliding of the first clamping member. The second slider is pushed outside the shell to slide back and forth in the second long slot hole, so as to realize the forward and backward sliding of the second clamping member. The structure for driving the first clamping member and the second clamping member is simple and has high reliability.

[0032] As a further improvement of the above technical solution, a slide groove is provided on the top surface of the shell, and the slide groove extends in the front-to-back direction. The implant device also includes a wedge block, and the wedge block is a wedge-shaped structure that is small in the front and large in the back. The wedge block is arranged on the top surface of the shell, and a sliding block is provided on the rear side of the wedge block. The sliding block can be slidably arranged in the slide groove so that the wedge block can slide back and forth along the top surface of the shell.

[0033] With the axial direction of the cylindrical surface of the intervertebral fusion device body as the up-down direction, the wedge block is arranged on the top surface of the shell, and the wedge block is driven to slide in the front-to-back direction by the sliding block. When the front end of the implant device carries the intervertebral fusion device and is inserted into the intervertebral space of the spine, the sliding block is pushed forward to insert the wedge block into the intervertebral space of the spine, so that the top surface of the wedge block and the bottom surface of the shell support the upper and lower spinal bones, so that the space between the spinal vertebrae of the spine is expanded, which is conducive to the clamping mechanism of the implant device to place the intervertebral fusion device into the intervertebral space of the spine. When the implant device completes the implantation of the intervertebral fusion device, the sliding block can be pushed backward to disengage the wedge block from the intervertebral space of the spine, so that the intervertebral space returns to its original state, so that the spinal bones on the upper and lower sides of the intervertebral fusion device press the intervertebral fusion device, and the wedge block helps the implant device to implant the intervertebral fusion device.

[0034] As a further improvement of the above technical solution, anti-slip teeth are provided on the bottom surface of the shell, and the anti-slip teeth are located at the front part of the shell.

[0035] The bottom surface of the shell is provided with anti-skid teeth. When the front end of the implant device carries the intervertebral fusion device and is inserted into the intervertebral space of the spine, the sliding block is pushed forward to allow the wedge block to be inserted into the intervertebral space of the spine. The anti-skid teeth prevent the shell from sliding backward, thereby facilitating the insertion of the wedge block into the intervertebral space of the spine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0037] Figure 1 This is an axonometric schematic diagram of an embodiment of the intervertebral fusion device provided by the present invention;

[0038] Figure 2 It is an axonometric schematic diagram of another angle of an embodiment of the intervertebral fusion device provided by the present invention;

[0039] Figure 3 is a right side schematic diagram of an embodiment of the intervertebral fusion device provided by the present invention;

[0040] Figure 4 is a top view schematically showing an embodiment of the intervertebral fusion device provided by the present invention;

[0041] Figure 5 is an axonometric schematic diagram of an embodiment of the implant device provided by the present invention;

[0042] Figure 6 is an axonometric schematic diagram of an embodiment of the implant device provided by the present invention from another angle;

[0043] Figure 7 This is a schematic diagram of the assembly of an embodiment of the implant device provided by the present invention;

[0044] Figure 8 This is a schematic assembly diagram of an implant device provided by the present invention from another angle of one embodiment;

[0045] Fig. 9 is an axonometric schematic diagram of a housing of an implant device provided by the present invention in one embodiment;

[0046] Fig.10 This is an isometric schematic diagram of another angle of the housing of an embodiment of the implant device provided by the present invention;

[0047] Fig.11 The present invention provides an implant device, and a schematic cross-sectional view of a shell in one embodiment thereof.

[0048] 100, main body, 110, cylindrical surface, 111, gear teeth, 120, through hole, 130, connecting part, 140, connecting hole, 200, shell, 210, hollow inner cavity, 211, opening, 220, shaft hole, 230, adjustment hole, 240, first long slot hole, 250, second long slot hole, 260, slide groove, 270, anti-slip teeth, 300, first gear, 410, rotating shaft, 411, handle, 412, anti-slip layer, 420, worm, 430, second gear, 440, third gear, 501, clamping cavity, 510, first clamping member, 511, hook, 512, first slider, 520, second clamping member, 521, stopper, 522, second slider, 600, wedge block, 610, sliding block. DETAILED DESCRIPTION

[0049] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In the description of the present invention, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.

[0052] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0053] Reference Figures 1 to 11 The intervertebral fusion cage and implant device of the present invention are provided in the following embodiments:

[0054] The intervertebral fusion device includes a main body 100, and a cylindrical surface 110 is provided on the outer wall of the main body 100. The cylindrical surface 110 makes at least a part of the main body 100 cylindrical in shape. The cylindrical surface 110 is provided with gear teeth 111, and there are a plurality of gear teeth 111, and all gear teeth 111 are sequentially spaced and distributed along the circumference of the cylindrical surface 110. When determining the implantation angle of the main body 100 of the intervertebral fusion device, it is necessary to rotate the main body 100 around the vertical axis, and the gear teeth 111 on the cylindrical surface 110 provide the main body 100 with an accurate positioning reference. When the main body 100 rotates, the gear teeth 111 can be used to limit the rotation angle of the main body 100, thereby facilitating the adjustment of the implantation angle of the main body 100 of the intervertebral fusion device.

[0055] The main body 100 is provided with a through hole 120, which penetrates the main body 100 in the up-down direction, and the top surface of the main body 100 is an inclined surface with a low front and a high back. When the intervertebral fusion device main body 100 is implanted in the intervertebral space of the human spine, the top surface of the main body 100 is an inclined surface with a low front and a high back, which facilitates the insertion of the main body 100 into the intervertebral space; when the intervertebral fusion device main body 100 is implanted in the intervertebral space of the human spine, the main body 100 is located in the intervertebral space, and the spinal bones grow along the through hole 120, so that the main body 100 and the spinal bones are more tightly combined.

[0056] The implant device includes a housing 200, a first gear 300, a driving member, a clamping mechanism, and the above-mentioned intervertebral fusion device. The housing 200 has a hollow inner cavity 210, and an opening 211 is provided at the front end of the hollow inner cavity 210, and the opening 211 communicates the outside with the hollow inner cavity 210. The first gear 300 is rotatably arranged in the hollow inner cavity 210, specifically, the rotating shaft of the first gear 300 is connected to the inner wall of the hollow inner cavity 210, the first gear 300 is rotatably sleeved on the rotating shaft, and the teeth of the first gear 300 extend forward through the opening 211. The driving member is arranged in the hollow inner cavity 210, and the driving member drives the first gear 300 to rotate. The clamping mechanism is arranged on the housing 200, and the clamping mechanism forms a clamping cavity 501, and the clamping cavity 501 is located in front of the opening 211. The intervertebral fusion device body 100 is rotatably disposed in the clamping cavity 501, and the first gear 300 is meshed with the gear teeth of the body 100 for transmission. The clamping mechanism clamps the intervertebral fusion device body 100 in the clamping cavity 501, and the first gear 300 is driven to rotate by the driving member. The rotation of the first gear 300 causes the intervertebral fusion device body 100 to rotate around the vertical axis, thereby changing the implantation angle of the intervertebral fusion device body 100.

[0057] The housing 200 is provided with an axial hole 220, and the axial hole 220 penetrates the hollow inner cavity 210 in the front-to-back direction. The driving member includes a rotating shaft 410, a worm 420, a second gear 430, and a third gear 440. The rear end of the rotating shaft 410 is rotatably arranged in the axial hole 220, and the front end of the rotating shaft 410 extends into the hollow inner cavity 210, so that the rotating shaft 410 can rotate around its own axis. The worm 420 is arranged at the front end of the rotating shaft 410, and the rotation axis of the worm 420 is located on the same straight line as the rotation axis of the rotating shaft 410, and the rotating shaft 410 is linked with the worm 420. The second gear 430 is rotatably arranged in the hollow inner cavity 210, specifically, the rotation axis of the second gear 430 is connected to the inner wall of the hollow inner cavity 210, and the second gear 430 is sleeved on the rotation axis. The second gear 430 is meshed with the worm 420 for transmission, and the rotation of the worm 420 drives the second gear 430 to rotate. The axis of the third gear 440 is connected to the axis of the second gear 430, so that the third gear 440 is linked with the second gear 430. The third gear 440 is meshed with the first gear 300 for transmission, so that the driving member drives the first gear 300 to rotate.

[0058] In some embodiments, in order to drive the rotating shaft 410 to rotate, the shaft hole 220 penetrates the shell 200 backward, so that the rear end of the rotating shaft 410 passes through the shaft hole 220 and extends behind the shell 200. A handle 411 is provided at the rear end of the rotating shaft 410, and the rotating shaft 410 is driven to rotate by rotating the handle 411.

[0059] In some embodiments, in order to drive the rotating shaft 410 to rotate, an adjustment hole 230 is provided on the side wall of the housing 200, and the adjustment hole 230 connects the hollow inner cavity 210 with the outside. An anti-skid layer 412 is sleeved on the outer wall of the rotating shaft 410, and the anti-skid layer 412 is linked with the rotating shaft 410. The adjustment hole 230 is directly opposite to the anti-skid layer 412, and the outer wall of the anti-skid layer 412 protrudes outside the adjustment hole 230. By pressing the anti-skid layer 412 with fingers and sliding it in the circumferential direction of the rotating shaft 410, the anti-skid layer 412 drives the rotating shaft 410 to rotate, so that the rotating shaft 410 can rotate at a smaller angle, and the implantation angle of the intervertebral fusion device body 100 can be precisely fine-tuned.

[0060] A connecting portion 130 is provided on the outer wall of the intervertebral fusion device body 100. The connecting portion 130 protrudes forward. A connecting hole 410 is formed between the connecting portion 130 and the cylindrical surface 110. The connecting hole 140 extends along the circumference of the cylindrical surface 110. The clamping mechanism includes a first clamping member 510 and a second clamping member 520. The first clamping member 510 is slidably disposed in the hollow inner cavity 210. The front end of the first clamping member 510 extends in front of the opening 211. A hook 511 is provided at the front end of the first clamping member 510. The second clamping member 520 is slidably disposed in the hollow inner cavity 210. The front end of the second clamping member 520 extends in front of the opening 211. A stopper 521 is provided at the front end of the second clamping member 520. A clamping cavity 501 is formed between the stopper 521 and the hook 511. The intervertebral fusion device body 100 is arranged in the clamping cavity 501, and the hook 511 is inserted into the connecting hole 140 of the body 100. The hook 511 penetrates into the connecting hole 140 along the cylindrical surface 110, and the hook 511 abuts against the cylindrical surface 110, and the stopper 521 abuts against the cylindrical surface 110, so that the intervertebral fusion device body 100 is fixed in the clamping cavity 501.

[0061] The side wall of the housing 200 is provided with a first long slot hole 240 and a second long slot hole 250, and both of the first long slot hole 240 and the second long slot hole 250 extend in the front-to-back direction. The first long slot hole 240 connects the hollow inner cavity 210 with the outside, and a first slider 512 is provided on the outer wall of the first clamping member 510. The first slider 512 is slidably disposed in the first long slot hole 240, and the first slider 512 extends out of the first long slot hole 240. The first slider 512 is pushed to slide forward and backward in the first long slot hole 240, so that the first clamping member 510 moves in the front-to-back direction. The second long slot hole 250 connects the hollow inner cavity 210 with the outside, and a second slider 522 is provided on the outer wall of the second clamping member 520. The second slider 522 is slidably disposed in the second long slot hole 250, and the second slider 522 extends out of the second long slot hole 250. The second sliding block 522 is pushed to slide forward and backward in the second long slot hole 250 , so that the second clamping member 520 moves in the forward and backward direction.

[0062] A slide groove 260 is provided on the top surface of the housing 200, and the slide groove 260 extends in the front-to-back direction. The wedge block 600 is a wedge-shaped structure with a small front and a large rear, and the wedge block 600 is slidably arranged on the top surface of the housing 200. A sliding block 610 is provided on the rear side of the wedge block 600, and the sliding block 610 is slidably arranged in the slide groove 260, and the sliding block 610 is pushed to slide forward and backward in the slide groove 260 so that the wedge block 600 slides in the front-to-back direction. Anti-slip teeth 270 are provided on the bottom surface of the housing 200, and the anti-slip teeth 270 are located at the front part of the housing 200. When the front end of the implant device is inserted into the intervertebral space of the human spine, the anti-slip teeth 270 on the bottom surface of the shell 200 prevent the shell 200 from sliding relative to the spinal bone, and the sliding block 610 is pushed forward so that the front end of the wedge block 600 is inserted into the intervertebral space of the spine. As the wedge block 600 gradually moves forward, the intervertebral space of the spine continues to expand, which helps to implant the intervertebral fusion device body 100 clamped by the front end clamping mechanism of the implant device into the intervertebral space.

[0063] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An implant device, characterized in that: include: A housing (200) having a hollow inner cavity (210), wherein a front end of the hollow inner cavity (210) is provided with an opening (211); A first gear (300) rotatably disposed in the hollow inner cavity (210), wherein teeth of the first gear (300) extend in front of the opening (211); a driving member, which is disposed in the hollow inner cavity (210), and the driving member drives the first gear (300) to rotate; A clamping mechanism, which is arranged on the housing (200), the clamping mechanism having a clamping cavity (501), and the clamping cavity (501) is located in front of the opening (211); An intervertebral fusion device comprises a main body (100), the outer wall of the main body (100) is provided with a cylindrical surface (110), the axis of the cylindrical surface (110) is taken as the up-down direction, the main body (100) is provided with a through hole (120), the through hole (120) penetrates the main body (100) in the up-down direction, the top surface of the main body (100) is an inclined surface with a lower front and a higher rear, the cylindrical surface (110) is provided with gear teeth (111), there are a plurality of gear teeth (111), all of the gear teeth (111) are arranged in sequence at intervals along the circumference of the cylindrical surface (110), the main body (100) is rotatably arranged in the clamping cavity (501), and the first gear (300) is meshed with the gear teeth (111) for transmission; A connecting portion (130) is provided on the outer wall of the main body (100), the connecting portion (130) protrudes outwards, a connecting hole (140) is formed between the connecting portion (130) and the cylindrical surface (110), and the connecting hole (140) extends along the circumference of the cylindrical surface (110); Anti-slip teeth (270) are provided on the bottom surface of the housing (200), and the anti-slip teeth (270) are located at the front part of the housing (200).

2. The implant device according to claim 1, characterized in that: The housing (200) is provided with an axial hole (220), the axial hole (220) penetrating the hollow inner cavity (210) in the front-to-back direction, and the driving member comprises: A rotating shaft (410), the rear end of which is rotatably disposed in the shaft hole (220), and the front end of the rotating shaft (410) extends into the hollow inner cavity (210); A worm (420) is disposed at the front end of the rotating shaft (410), and the rotating shaft (410) drives the worm (420) to rotate; a second gear (430) rotatably disposed in the hollow inner cavity (210), the second gear (430) meshing with the worm (420) for transmission; The axis of the third gear (440) is connected to the axis of the second gear (430), the third gear (440) and the second gear (430) are linked, and the third gear (440) and the first gear (300) are meshed for transmission.

3. The implant device according to claim 2, characterized in that: The shaft hole (220) penetrates the housing (200) backwards, the rear end of the rotating shaft (410) passes through the shaft hole (220) backwards and protrudes to the outside, and a handle (411) is provided at the rear end of the rotating shaft (410).

4. The implant device according to claim 2, characterized in that: An adjustment hole (230) is provided on the side wall of the shell (200), and the adjustment hole (230) connects the hollow inner cavity (210) with the outside. The rotating shaft (410) is provided with an anti-slip layer (412), and the anti-slip layer (412) is sleeved on the outer wall of the rotating shaft (410). The anti-slip layer (412) and the rotating shaft (410) are linked, and the adjustment hole (230) is opposite to the anti-slip layer (412), and the outer wall of the anti-slip layer (412) protrudes outside the adjustment hole (230).

5. The implant device according to claim 1, characterized in that: The clamping mechanism comprises: a first clamping member (510) which is slidably disposed in the hollow inner cavity (210) forward and backward, the front end of the first clamping member (510) passing through the opening (211) and extending forward, the front end of the first clamping member (510) being provided with a hook (511), the hook (511) being inserted into the connecting hole (140), the hook (511) being in contact with the cylindrical surface (110); The second clamping member (520) is slidably disposed in the hollow inner cavity (210), the front end of the second clamping member (520) passes through the opening (211) and protrudes forward, the front end of the second clamping member (520) is provided with a stopper (521), the stopper (521) abuts against the cylindrical surface (110), and the stopper (521) and the hook (511) form the clamping cavity (501).

6. The implant device according to claim 5, characterized in that: A first long slot hole (240) and a second long slot hole (250) are provided on the side wall of the shell (200), and the first long slot hole (240) and the second long slot hole (250) both extend in the front-to-back direction, and the first long slot hole (240) connects the hollow inner cavity (210) with the outside world; a first sliding block (512) is provided on the outer wall of the first clamping member (510), and the first sliding block (512) is slidably arranged in the first long slot hole (240) in a front-to-back manner, and the first sliding block (512) extends out of the shell (200), and the second long slot hole (250) connects the hollow inner cavity (210) with the outside world; a second sliding block (522) is provided on the outer wall of the second clamping member (520), and the second sliding block (522) is slidably arranged in the second long slot hole (250) in a front-to-back manner, and the second sliding block (522) extends out of the shell (200).

7. The implant device according to claim 1, characterized in that: A slide groove (260) is provided on the top surface of the shell (200), and the slide groove (260) extends in the front-to-back direction. The implant device also includes a wedge block (600), and the wedge block (600) is a wedge-shaped structure that is small at the front and large at the back. The wedge block (600) is arranged on the top surface of the shell (200), and a sliding block (610) is provided on the rear side of the wedge block (600). The sliding block (610) can be slidably arranged in the slide groove (260) so that the wedge block (600) can slide back and forth along the top surface of the shell (200).

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