A transverse intervertebral fusion device and implantation instrument assembly

Abstract

The present application relates to the field of medical devices, and in particular to a transverse intervertebral fusion device and an implant instrument assembly. The transverse intervertebral fusion device includes a device body, the interior of the device body is formed with a cavity with two ends open, and the cavity wall of the cavity is provided with a through hole; the device body includes a tail entity, the tail entity includes a connected transverse knocking surface and an intervertebral anatomical adaptation surface, and the angle between the transverse knocking surface and the intervertebral anatomical adaptation surface is an obtuse angle; the surface of the transverse knocking surface is a rough surface; the tail entity is also provided with a clamping portion that matches the implant instrument. The fusion device of the present application can be implanted from the oblique rear of the intervertebral space by the clamping of the implant instrument, and the angle of the fusion device in the intervertebral space can be further adjusted, which is more conducive to the support and fusion of the fusion device in the intervertebral space, and can improve the fusion efficiency. The implant instrument assembly of the present application can be visually inserted into the intervertebral fusion device to ensure safety.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a transverse intervertebral fusion device and an implant device assembly. Background Art

[0002] There are many types and shapes of intervertebral fusion devices at present. The existing technology has several common problems, and the fusion efficiency needs to be further improved. There is a lack of improvement in the size of the fusion area in the fusion device and the design of further bone formation of the bone graft in front of the fusion device. Secondly, regarding the adjustment of the angle of the fusion device after it is inserted into the intervertebral space, most fusion devices are not designed with this function. Regarding the design of the fusion device holder, the current existing endoscopic fusion devices are all blindly inserted, and the real safety of the fusion device cannot be guaranteed when it is inserted. The present application proposes to put the fusion device holder under the endoscope and insert the fusion device under direct vision. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a transverse intervertebral fusion cage to solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the present application provides, on the one hand, a transverse intervertebral fusion device, including a fusion device body, the interior of the fusion device body is formed with a cavity with openings at both ends, and the cavity wall of the cavity is provided with a through hole; the cavity wall of the cavity includes a front side wall, a head solid part, a rear side wall and a tail solid part adjacent to each other in sequence, and the tail solid part includes a connected transverse striking surface and an intervertebral space anatomical adaptation surface, and the angle between the transverse striking surface and the intervertebral space anatomical adaptation surface is an obtuse angle; the surface of the transverse striking surface is a rough surface; the tail solid part is also provided with a clamping part matching the implant instrument.

[0005] In some embodiments of the present application, the fusion device body includes an upper vertebral contact surface and a lower vertebral contact surface, and the two end openings of the cavity are respectively arranged on the upper vertebral contact surface and the lower vertebral contact surface; the through hole is arranged on the front side wall; and the upper vertebral contact surface and / or the lower vertebral contact surface are provided with locking serrations.

[0006] In some embodiments of the present application, the upper vertebral contact surface fits the curvature of the upper vertebral body, and the lower vertebral contact surface fits the curvature of the lower vertebral body; the middle parts of the upper vertebral body contact surface and the lower vertebral body contact surface are both convex.

[0007] In some embodiments of the present application, the fusion device body also includes a head entity portion, and the plane where the head entity portion is located is arranged parallel to the horizontal striking surface; the plane where the outer surface of the head entity portion is located is oblique to the front side wall or the rear side wall.

[0008] In some embodiments of the present application, adjacent cavity walls of the fusion device body have rounded transitions.

[0009] In some embodiments of the present application, the angle between the transverse striking surface and the intervertebral space anatomical adaptation surface is 100° to 170°.

[0010] In some embodiments of the present application, the clamping portion includes a first groove body provided on the transverse striking surface and a second groove body provided on the anatomical adaptation surface of the intervertebral disc; the positions of the first groove body and the second groove body match the clamping assembly of the implant instrument; and the clamping portion also includes a threaded hole located between the first groove body and the second groove body for adapting to the threaded rod of the implant instrument.

[0011] On the other hand, the present application provides an implant instrument assembly, including the transverse intervertebral fusion device described in the first aspect of the present invention and an implant instrument that cooperates with the transverse intervertebral fusion device, the implant instrument including a connected connecting rod and a threaded rod; and also including a clamping assembly that cooperates with the clamping portion; the threaded rod is sequentially sleeved with an elastic member and a clamping assembly in an extension direction away from the connecting rod; the clamping assembly cooperates with the clamping portion; and an elastic member stop surface is provided between the connecting rod and the threaded rod.

[0012] In some embodiments of the present application, the clamping assembly includes a first fitting surface that cooperates with the transverse striking surface and a second fitting surface that cooperates with the anatomical adaptation surface of the intervertebral space; the first fitting surface is provided with a first retaining member that cooperates with the first groove body; the second fitting surface is provided with a second retaining member that cooperates with the second groove body.

[0013] In some embodiments of the present application, a quick-change joint is provided at one end of the connecting rod away from the threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The diagram shows a three-dimensional structure of a transverse intervertebral fusion cage of the present invention at one angle.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the transverse intervertebral fusion cage of the present application from another angle.

[0016] Figure 3 Shown is a schematic diagram of the front view of the transverse intervertebral fusion cage of the present application.

[0017] Figure 4 Shown is a rear view structural schematic diagram of the transverse intervertebral fusion cage of the present application.

[0018] Figure 5 The figure shows a bottom view of the structure of the transverse intervertebral fusion cage of the present invention.

[0019] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the implantable device of the present application.

[0020] Figure 7 Shown is a schematic diagram of the main structure of the implantable device of the present application.

[0021] Figure 8 Shown is a three-dimensional structural schematic diagram of the clamping assembly of the present application.

[0022] Component number description

[0023] 1 Horizontal interbody fusion cage

[0024] 11 Fusion device body

[0025] 111 Upper vertebral contact surface

[0026] 112 Lower vertebral contact surface

[0027] 12 Cavity

[0028] 121 front side wall

[0029] 122 Head body

[0030] 123 rear side wall

[0031] 124 tail body

[0032] 1241 Horizontal striking surface

[0033] 1242 Intervertebral space anatomical adaptation surface

[0034] 13 Through Holes

[0035] 14 Clamping part

[0036] 141 First tank

[0037] 142 Second tank

[0038] 143 threaded hole

[0039] 15 Position serrations

[0040] 2 Implanted Devices

[0041] 21 Connecting rod

[0042] 22 Threaded rod

[0043] 23 Clamping assembly

[0044] 231 First bonding surface

[0045] 232 Second bonding surface

[0046] 233 First retaining piece

[0047] 234 Second retaining piece

[0048] 235 Through hole

[0049] 24 Elastic parts

[0050] 25 Quick-change connector DETAILED DESCRIPTION

[0051] In the description of the present application, it should be noted that the devices, proportions, sizes, etc. illustrated in the drawings of the present specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that can be implemented in the present application, so they have no technical substantive significance. Any modification of the device, change of the proportion relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in the present application. At the same time, the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] Furthermore, in the description of the present application, unless otherwise specified, “plurality” means two or more.

[0054] like Figures 1 to 5As shown, the embodiment of the present application provides a transverse intervertebral fusion device 1, including a fusion device body 11, wherein a cavity 12 with two ends opening is formed inside the fusion device body 11, and a through hole 13 is provided on the cavity wall of the cavity 12; the cavity wall of the cavity 12 includes an anterior side wall 121, a head entity part 122, a posterior side wall 123 and a tail entity part 124 adjacent to each other in sequence, and the anterior side wall 121, the head entity part 122, the posterior side wall 123 and the tail entity part 124 enclose and form the cavity wall. The tail entity part 124 includes a connected transverse striking surface 1241 and an intervertebral space anatomical adaptation surface 1242, wherein the intervertebral space anatomical adaptation surface 1242 is used to adapt to the anatomy of the upper and lower end plates in the intervertebral space, reduce the stimulation to the intervertebral tissue and reduce the transverse resistance during the process of transverse intervertebral fusion device. The angle between the transverse striking surface 1241 and the intervertebral anatomical adaptation surface 1242 is an obtuse angle; the surface of the transverse striking surface 1241 is a rough surface; the tail entity portion 124 is also provided with a clamping portion 14 that matches the implant device 2. The implant device 2 can be, for example, a holder. The transverse intervertebral fusion device 1 of the present application is the only fusion device designed for transverse placement in China. The fusion device can be implanted from the oblique rear of the intervertebral space by clamping the implant device 2, and the angle of the fusion device in the intervertebral space can be further adjusted, which is more conducive to the support and fusion of the fusion device in the intervertebral space, and can improve the fusion efficiency.

[0055] In the transverse intervertebral fusion cage provided in the embodiment of the present application, generally, Figures 1 to 5 As shown, the fusion device body 11 includes an upper vertebral contact surface 111 and a lower vertebral contact surface 112. The two end openings of the cavity 12 are respectively located on the upper vertebral contact surface 111 and the lower vertebral contact surface 112. The upper vertebral contact surface 111 and the lower vertebral contact surface 112 are usually provided with openings of appropriate size, so that the broken bones implanted in the fusion device body 11 later can form appropriate contact with the upper and lower vertebrae. The through hole 13 is located on the front side wall 121, wherein the front side wall 121 is a side wall that contacts the cancellous bone after the fusion device body 11 is implanted. The transverse fusion device of the present application adopts the front side wall 121 opening design and the rear side wall 123 load-bearing structure. Under the premise of ensuring the support force of the fusion device, the cancellous bone (pre-implanted bone) in the fusion device and in front of the fusion device are promoted to be combined and grown together as much as possible, thereby promoting the efficiency and strength of intervertebral fusion and promoting complete stability. This overcomes the problem of the traditional fusion device design where the upper and lower parts are connected. Although there is bone graft in the front of the fusion device, it is completely isolated from the bone graft inside the fusion device and cannot promote fusion of each other.

[0056] In the transverse intervertebral fusion device provided in the embodiment of the present application, the size of the device body 11 is usually matched with the interval between the vertebrae and the area of ​​the vertebrae to be contacted therewith, and the upper vertebrae contact surface 111 and the lower vertebrae contact surface 112 correspond to the upper and lower surfaces of the device body 11 respectively; for another example, the size of the device body 11 in the height direction (consistent with the extension direction of the upper and lower vertebrae) can be 8mm-17mm, 8mm-12mm, 12mm-15mm, or 15mm-17mm, etc. The size of the device body 11 in the length direction (the vertical distance between the head entity part 122 and the transverse striking surface 1241) can be 22mm-48mm, 22mm-28mm, 28mm-35mm, 35mm-42mm, or 42mm-48mm, etc. The dimension of the width direction of the fusion device body 11 (the distance between the front side wall 121 and the rear side wall 123 of the fusion device body 11) can be 8mm-12mm, 8mm-10mm, or 8mm-12mm, etc. For another example, the cross-sectional area of ​​the cavity 12 is 25%-45%, 25%-35%, 35%-45%, etc. of the cross-sectional area of ​​the fusion device body 1. The area of ​​the through hole 13 is less than or equal to the cross-sectional area of ​​the cavity.

[0057] In the transverse intervertebral fusion device provided in the embodiment of the present application, Figures 1 to 5 As shown, the shape of the fusion device body 11 can generally be a structure that is approximately fusiform, the purpose of which is to make the overall and bony endplates fit the fusion device. The upper vertebral contact surface 111 and the lower vertebral contact surface 112 fit the curvature of the upper and lower vertebral plates. The upper vertebral contact surface 111 and the lower vertebral contact surface 112 are both curved surfaces with a certain taper in front and back. These features are consistent with the anatomical morphology between the upper and lower vertebral bodies. The middle parts of the upper vertebral contact surface 111 and the lower vertebral contact surface 112 are both convex. That is, the distance between the middle parts of the upper vertebral contact surface 111 and the lower vertebral contact surface 112 is greater than the distance between the ends of the upper vertebral contact surface 111 and the lower vertebral contact surface 112. When the distance between the middle parts of the upper vertebral contact surface 111 and the lower vertebral contact surface 112 is greater than the distance between the ends of the upper vertebral contact surface 111 and the lower vertebral contact surface 112, the fusion device body 11 forms a certain convexity to match the curvature of the upper and lower vertebral plates.

[0058] In the transverse intervertebral fusion device provided in the embodiment of the present application, Figures 1 to 5As shown, the upper vertebral contact surface 111 and / or the lower vertebral contact surface 112 are provided with a locking sawtooth 15. The locking sawtooth 15 is mainly used to prevent the fusion device from slipping back. The position of the locking sawtooth 15 and the opening position on the upper vertebral contact surface 111 and the lower vertebral contact surface 112 can usually be matched. For example, the locking sawtooth 15 can be located at the edge of the opening on the upper vertebral contact surface 111, and the locking sawtooth 15 can also be located at the edge of the opening on the lower vertebral contact surface 112.

[0059] In the transverse intervertebral fusion device provided in the embodiment of the present application, Figure 1 , 2 As shown in Figures 5 and 6, the plane where the head entity part 122 of the fusion device body 11 is located is parallel to the horizontal striking surface 1241. During the operation, the head entity part 122 first enters the intervertebral space, and then the head entity part 122 is rotated clockwise by striking the horizontal striking surface 1241, and finally rotates into a horizontal structure. In a specific embodiment, the plane where the outer surface of the head entity part 122 of the fusion device body 11 is located is oblique to the anterior side wall 121 or the posterior side wall 123, and the outer surface of the head entity part 122 is not perpendicular to the anterior side wall 121 or the posterior side wall 123. For example, the angle between the outer surface of the head entity part 122 and the posterior side wall 123 is an acute angle, and the acute angle can be 10° to 80°, 10° to 50°, 50° to 80°; 10° to 30°, 30° to 50°, 50° to 70°, or 70° to 80°, etc.

[0060] In the transverse intervertebral fusion device provided in the embodiment of the present application, Figures 1 to 5 As shown, the adjacent cavity walls of the fusion device body 11 have rounded transitions. Such a design can avoid the cutting effect of the edges on the upper and lower vertebrae.

[0061] In the transverse intervertebral fusion device provided in the embodiment of the present application, the angle between the transverse striking surface 1241 and the intervertebral anatomical adaptation surface 1242 can be 100° to 170°, 100° to 110°, 110° to 130°, 130° to 150°, 150° to 170°, 100° to 120°, 120° to 140°, 140° to 160°, or 160° to 170°, etc. Within the aforementioned angle range, the fusion device body 11 can be better slid into the upper and lower intervertebral spaces.

[0062] In the transverse intervertebral fusion device provided in the embodiment of the present application, Figures 1-2As shown, the clamping part 14 includes a first groove body 141 arranged on the horizontal knocking surface 1241 and a second groove body 142 arranged on the intervertebral anatomical adaptation surface 1242; the positions of the first groove body 141 and the second groove body 142 match the clamping assembly of the implant instrument. The clamping part 14 also includes a threaded hole 143 for adapting the threaded rod of the implant instrument between the first groove body 141 and the second groove body 142. When used, the clamping assembly 23 of the implant instrument 2 is respectively inserted into the first groove body 141 and the second groove body 142 for fixation, and then the threaded rod 22 of the implant instrument 2 is screwed into the threaded hole 143. In a specific embodiment, the aperture of the threaded hole 143 can be, for example, M2.5-M5. The first groove body 141 and the second groove body 142 can be, for example, grooves.

[0063] In the transverse intervertebral fusion device provided in the embodiment of the present application, the roughness of the rough surface is a sawtooth groove formed after the surface is processed, and the main purpose is to prevent the instrument from slipping during the transverse placement process. Usually, after the implantation instrument completes the implantation of the transverse intervertebral fusion device, the transverse knocking surface can be knocked by pushing the instrument so that the intervertebral fusion device can be placed transversely.

[0064] like Figures 6 to 8 As shown, another aspect of the embodiment of the present application provides an implant instrument assembly, the implant instrument assembly includes the transverse intervertebral fusion device 1 of the first aspect of the present application, and also includes an implant instrument 2 that matches the transverse intervertebral fusion device 1. The implant instrument 2 matches the transverse intervertebral fusion device 1, specifically, the transverse intervertebral fusion device 1 can be used to clamp the intervertebral fusion device and implant it between two adjacent vertebrae. The implant instrument 2 includes a connected connecting rod 21 and a threaded rod 22. The threaded rod 22 is sequentially sleeved with an elastic member 24 and a clamping assembly 23 in the extension direction away from the connecting rod; the clamping assembly 23 matches the clamping portion 14; the clamping assembly 23 can clamp the clamping portion 14 and implant it between two adjacent vertebrae. An elastic member stop surface is provided between the connecting rod 21 and the threaded rod 22, which is used to stop the elastic member when it is contracted or expanded to prevent it from slipping off the connecting rod or the threaded rod. The implant instrument assembly of the present application can be visually inserted into the intervertebral fusion device to ensure safety.

[0065] In the implant device assembly provided in the embodiment of the present application, the connection mode between the connecting rod 21 and the threaded rod 22 can be a fixed connection.

[0066] In the implant device assembly provided in the embodiment of the present application, Figures 6 to 8As shown, the clamping assembly 23 further includes a first fitting surface 231 matched with the transverse striking surface 1241 and a second fitting surface 232 matched with the intervertebral disc anatomical adaptation surface 1242. The first fitting surface 231 matches with the transverse striking surface 1241, specifically, when the threaded rod 22 is screwed into the threaded hole 143, the first fitting surface 231 closely matches with the transverse striking surface 1241. The second fitting surface 232 matches with the intervertebral disc anatomical adaptation surface 1242, specifically, when the threaded rod 22 is screwed into the threaded hole 143, the second fitting surface 232 closely matches with the intervertebral disc anatomical adaptation surface 1242. The angle between the first fitting surface 231 and the second fitting surface 232 is equal to the angle between the transverse striking surface 1241 and the intervertebral disc anatomical adaptation surface 1242. Specifically, the angle between the first fitting surface 231 and the second fitting surface 232 is adapted to the horizontal striking surface 1241 of the fusion device and the intervertebral anatomical adaptation surface 1242. The angle can be, for example, 100° to 170°, 100° to 110°, 110° to 130°, 130° to 150°, 150° to 170°, 100° to 120°, 120° to 140°, 140° to 160°, or 160° to 170°. The first fitting surface 231 is provided with a first retaining member 233 that matches the first slot body 141; the second fitting surface 232 is provided with a second retaining member 234 that matches the second slot body 142. The first retaining member 233 cooperates with the first groove body 141, and the second retaining member 234 cooperates with the second groove body 142 specifically means that the first retaining member 233 and the second retaining member 234 are respectively inserted into the first groove body 141 and the second groove body 142 of the fusion device body 11, and when the threaded rod 22 is screwed into the threaded hole 143, the fusion device body 11 can be prevented from rotating together with the threaded rod 22.

[0067] In the implant device assembly provided in the embodiment of the present application, Figure 8 As shown, the clamping assembly 23 is provided with a through hole 235, so that the threaded rod 22 can pass through the clamping assembly 23 and be screwed into or out of the threaded hole 143 of the fusion device body 11. The through hole 235 can be provided with a thread or not. The through hole 235 corresponds to the threaded hole 143, so that the threaded rod 22 can be screwed into the threaded hole 143 well.

[0068] In the implant device assembly provided in the embodiment of the present application, Figure 6 and 7 As shown, a quick-change joint 25 is provided at one end of the connecting rod 21 away from the threaded rod 22, and the quick-change joint 25 is connected to a quick-change handle. The threaded rod 22 can be moved relative to the threaded hole 143 by rotating the quick-change handle.

[0069] In the implant device assembly provided in the embodiment of the present application, the elastic member 24 may be, for example, a spring.

[0070] In the implant instrument assembly provided in the embodiment of the present application, the outer diameter of the connecting rod 21 is less than 6 mm, and the outer diameter of the connecting rod is used to adapt to the inner tube size of the endoscope.

[0071] In the implant instrument assembly provided in the embodiment of the present application, the quick-change connector 25 may be, for example, a hexagonal structure.

[0072] The specific working principle of the transverse intervertebral fusion cage and implant instrument assembly of the present application is as follows:

[0073] When in use, insert the end of the fixing rod close to the quick-change connector 25 from the end of the spinal endoscope that goes deep into the affected area into the working channel of the spinal endoscope until the quick-change connector 25 is exposed from the other end of the working channel of the spinal endoscope, and then dock the quick-change handle with the quick-change connector 25. Then insert the first retaining piece 233 of the clamping assembly 23 into the first groove 141 and the second retaining piece 234 of the first retaining part into the second groove 142 to fix the fusion device body 11. Hold the quick-change handle and rotate the quick-change handle to drive the threaded rod 22 to move toward the threaded hole 143. Since the clamping assembly 23 is fixed to the fusion device body 11 and cannot rotate, as the threaded rod 22 rotates, the clamping assembly 23 presses against the elastic member 24 to compress it, thereby making the implant 2 and the transverse intervertebral fusion device 1 stable, so that the intervertebral fusion device can be inserted under endoscope visualization. After the intervertebral fusion device is inserted, the quick-change handle is rotated in the opposite direction, the elastic member 24 returns to the initial state, the threaded rod 22 is disengaged from the threaded hole 143, and is retracted into the clamping assembly 23, and then the first retaining member 233 and the second retaining member 234 of the clamping assembly 23 are disengaged from the first slot 141 and the second slot 142, and the implantation device 2 and the horizontal intervertebral fusion device 1 are separated. During the operation, the head part 122 of the fusion device first enters the intervertebral space, and then the head part 122 is rotated clockwise by pushing the instrument to strike the horizontal striking surface 1241, and finally rotated into a horizontal structure.

[0074] In summary, the transverse intervertebral fusion cage and implant device assembly of the present application:

[0075] On the one hand, the overall fusion rate can be further improved: traditional fusion technology only considers bone grafting fusion in front of the fusion device and bone grafting fusion in the center of the fusion device. The transverse intervertebral fusion device 1 of the present application adopts a front opening design and a rear load-bearing structure to ensure the support force of the fusion device, and to promote the cancellous bone in the fusion device and the front of the fusion device to grow together as much as possible, thereby promoting the efficiency and strength of intervertebral fusion.

[0076] On the other hand, the posterior angle adjustment plane design of the transverse intervertebral fusion device 1: In order to expand the support range and angle of the fusion device, the PLIF, TLIF and other oblique posterior implantation techniques are designed to horizontally position the fusion device.

[0077] On the other hand, the gripper cooperates: the fusion device and the connecting rod 21 of the implantation device 2 are loaded from the front of the spinal endoscope, and the gripper handle is connected behind the endoscope. In this way, the intervertebral fusion device can be inserted under the endoscope, which can avoid nerve root damage caused by blind insertion of the intervertebral fusion device.

[0078] In summary, the present application effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0079] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A transverse intervertebral fusion cage, characterized in that: The invention comprises a fusion device body (11), wherein a cavity (12) with two ends opened is formed inside the fusion device body (11), and a through hole (13) is provided on the cavity wall of the cavity (12); the cavity wall of the cavity (12) comprises a front side wall (121), a head solid part (122), a rear side wall (123) and a tail solid part (124) adjacent to each other in sequence, and the tail solid part (124) comprises a connected transverse striking surface (1241) and an intervertebral space anatomical adaptation surface (1242); The included angle between the transverse striking surface (1241) and the intervertebral anatomical adaptation surface (1242) is an obtuse angle; the surface of the transverse striking surface (1241) is a rough surface; the tail entity portion (124) is also provided with a clamping portion (14) matching the implant device (2); the plane where the head entity portion (122) is located is arranged parallel to the transverse striking surface (1241); the plane where the outer surface of the head entity portion (122) is located is obliquely intersected with the front side wall (121) or the rear side wall (123).

2. The transverse intervertebral fusion cage according to claim 1, characterized in that: The fusion device body (11) comprises an upper vertebral contact surface (111) and a lower vertebral contact surface (112); the openings at both ends of the cavity (12) are respectively arranged on the upper vertebral contact surface (111) and the lower vertebral contact surface (112); the through hole (13) is arranged on the front side wall (121); and the upper vertebral contact surface (111) and / or the lower vertebral contact surface (112) are provided with positioning saw teeth (15).

3. The transverse intervertebral fusion cage according to claim 2, characterized in that: The upper vertebral body contact surface (111) fits the curvature of the upper vertebral body, and the lower vertebral body contact surface (112) fits the curvature of the lower vertebral body; the middle parts of the upper vertebral body contact surface (111) and the lower vertebral body contact surface (112) are both convex.

4. The transverse intervertebral fusion cage according to claim 1, characterized in that: The adjacent cavity walls of the fusion device body (11) have rounded transitions.

5. The transverse intervertebral fusion cage according to claim 1, characterized in that: The included angle between the transverse striking surface (1241) and the intervertebral disc anatomical adaptation surface (1242) is 100° to 170°.

6. The transverse intervertebral fusion cage according to claim 1, characterized in that: The clamping portion (14) comprises a first groove body (141) arranged on the transverse striking surface (1241) and a second groove body (142) arranged on the intervertebral disc anatomical adaptation surface (1242); the positions of the first groove body (141) and the second groove body (142) match the clamping assembly of the implant instrument; and the clamping portion (14) further comprises a threaded hole (143) located between the first groove body (141) and the second groove body (142) and adapted to the threaded rod of the implant instrument.

7. An implant device assembly, characterized in that: The invention comprises a transverse intervertebral fusion device (1) as claimed in any one of claims 1 to 6 and an implant device (2) matched with the transverse intervertebral fusion device (1), wherein the implant device (2) comprises a connecting rod (21) and a threaded rod (22) connected thereto; the threaded rod (22) is sequentially sleeved with an elastic member (24) and a clamping assembly (23) in an extending direction away from the connecting rod; the clamping assembly (23) is matched with the clamping portion (14); and an elastic member stop surface is provided between the connecting rod (21) and the threaded rod (22).

8. The implant device assembly according to claim 7, characterized in that The clamping assembly (23) comprises a first fitting surface (231) matching with the transverse striking surface (1241) and a second fitting surface (232) matching with the intervertebral anatomical adaptation surface (1242); a first retaining piece (233) matching with the first groove body (141) is provided on the first fitting surface (231); and a second retaining piece (234) matching with the second groove body (142) is provided on the second fitting surface (232).

9. The implant device assembly according to claim 7, characterized in that: A quick-change joint (25) is provided at one end of the connecting rod (21) away from the threaded rod (22).

Images