Vertebral prosthesis

Abstract

The present invention provides a vertebral prosthesis, which includes: a first vertebral body, having a first mounting hole; a second vertebral body, having a second mounting hole, the first vertebral body and the second vertebral body are arranged at intervals; a height adjustment component is arranged between the first vertebral body and the second vertebral body, one end of the height adjustment component is inserted into the first mounting hole and is driven and connected to the first vertebral body, and the other end of the height adjustment component is inserted into the second mounting hole and is driven and connected to the second vertebral body; a detection component is electrically connected to the height adjustment component, the detection component is used to detect the state parameters of the vertebral prosthesis, and the height adjustment component adjusts the distance between the first vertebral body and the second vertebral body according to the state parameters. The technical solution provided by the present application can solve the problem that the vertebral prosthesis in the prior art cannot work normally after collapse.

Description

Technical Field

[0001] The present invention relates to the technical field of prostheses, and in particular to a vertebral prosthesis. Background Art

[0002] Currently, surgical treatment is increasingly being used to treat spinal diseases. By implanting a vertebral prosthesis in the patient's body, the vertebral prosthesis can be used to support adjacent vertebrae to restore the function of the spine and complete the repair of the spine.

[0003] However, for older patients or patients with severe bone loss, the vertebral prosthesis is prone to collapse after surgery due to osteoporosis, and the vertebral prosthesis cannot work properly. Therefore, the prior art has the problem that the vertebral prosthesis cannot work properly after collapse. Summary of the invention

[0004] The present invention provides a vertebral prosthesis to solve the problem in the prior art that the vertebral prosthesis cannot work normally after collapse.

[0005] The present invention provides a vertebral prosthesis, which includes: a first vertebral body having a first mounting hole; a second vertebral body having a second mounting hole, the first vertebral body and the second vertebral body being spaced apart; a height adjustment component being arranged between the first vertebral body and the second vertebral body, one end of the height adjustment component being passed through the first mounting hole and being drivingly connected to the first vertebral body, and the other end of the height adjustment component being passed through the second mounting hole and being drivingly connected to the second vertebral body; a detection component being electrically connected to the height adjustment component, the detection component being used to detect state parameters of the vertebral prosthesis, and the height adjustment component adjusting the distance between the first vertebral body and the second vertebral body according to the state parameters.

[0006] Furthermore, the height adjustment component includes: a driving part, which is electrically connected to the detection component; and a transmission part, through which the driving part is drivingly connected to the first vertebral body and the second vertebral body.

[0007] Furthermore, the transmission part includes an adjusting screw, which includes a first section and a second section. The first section is inserted into the first mounting hole and is threadedly connected to the first vertebral body, and the second section is inserted into the second mounting hole and is threadedly connected to the second vertebral body.

[0008] Furthermore, the adjusting screw also includes a third section, both ends of which are respectively connected to the first section and the second section, one of the first section and the second section is provided with a left-handed thread, and the other of the first section and the second section is provided with a right-handed thread.

[0009] Furthermore, the transmission part also includes a transmission gear, a toothed structure is provided on the adjusting screw, the transmission gear is meshed with the toothed structure, and the driving part is drivingly connected to the transmission gear.

[0010] Furthermore, an annular boss is provided in the middle of the adjusting screw, and the annular boss extends along the circumference of the adjusting screw. Both ends of the annular boss are provided with tooth structures. The transmission part includes two transmission gears, and the two transmission gears are respectively meshed with the tooth structures at both ends.

[0011] Furthermore, the detection assembly includes a detection plate, which is disposed around the side walls of the first vertebral body and the second vertebral body, and is located outside the height adjustment assembly.

[0012] Furthermore, a rotation-stopping structure is provided between the detection plate and the first vertebral body and the second vertebral body, and the rotation-stopping structure is used to prevent the first vertebral body and the second vertebral body from rotating.

[0013] Furthermore, the vertebral prosthesis also includes a limit piece. The side walls of the first vertebra and the second vertebra are both provided with strip holes, which extend along the height direction of the vertebral prosthesis. The limit piece passes through the detection plate and is arranged in the strip hole. The limit piece and the strip hole cooperate to form a rotation-stopping structure.

[0014] Furthermore, a detection boss is provided on one side of the detection plate away from the first vertebral body and the second vertebral body; an end surface of the first vertebral body away from the second vertebral body and an end surface of the second vertebral body away from the first vertebral body are both porous structures.

[0015] The technical solution of the present invention is applied, and the vertebral prosthesis includes a first vertebral body, a second vertebral body, a height adjustment component and a detection component. The first vertebral body and the second vertebral body are arranged at intervals, and the height adjustment component is arranged between the first vertebral body and the second vertebral body. Among them, the first vertebral body has a first mounting hole, the second vertebral body has a second mounting hole, one end of the height adjustment component is inserted into the first mounting hole and is connected to the first vertebral body by driving, and the other end of the height adjustment component is inserted into the second mounting hole and is connected to the second vertebral body by driving, and the height adjustment component can be used to adjust the height size of the vertebral prosthesis. By electrically connecting the detection component with the height adjustment component, the detection component is used to detect the state parameters of the vertebral prosthesis. When the detection component detects that the vertebral prosthesis has collapsed, the height adjustment component will adjust the spacing between the first vertebral body and the second vertebral body according to the state parameters, thereby adjusting the height size of the vertebral prosthesis, so that the first vertebral body and the second vertebral body are effectively in contact with the adjacent vertebral body, ensuring the normal operation of the vertebral prosthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 An exploded view of a vertebral prosthesis provided according to an embodiment of the present invention is shown;

[0018] Figure 2Another exploded view of a vertebral prosthesis provided according to an embodiment of the present invention is shown;

[0019] Figure 3 Shows Figure 1 A schematic diagram of the structure of the adjusting screw in FIG.

[0020] Figure 4 An assembly diagram of a vertebral prosthesis provided according to an embodiment of the present invention is shown;

[0021] Figure 5 Another assembly diagram of a vertebral prosthesis provided according to an embodiment of the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10, first vertebra; 20, second vertebra;

[0024] 30. Height adjustment assembly; 31. Driving unit; 32. Transmission unit; 321. Adjustment screw; 3211. First section; 3212. Second section; 3213. Tooth structure; 3214. Annular boss; 3215. Weight reduction hole; 322. Transmission gear;

[0025] 40. detection assembly; 41. detection plate; 411. detection boss;

[0026] 50. Anti-rotation structure; 60. Limiting member; 70. Strip hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 5As shown, an embodiment of the present invention provides a vertebral prosthesis, which includes a first vertebral body 10, a second vertebral body 20, a height adjustment component 30 and a detection component 40. The first vertebral body 10 has a first mounting hole, the second vertebral body 20 has a second mounting hole, and the first vertebral body 10 and the second vertebral body 20 are arranged at intervals. By arranging the height adjustment component 30 between the first vertebral body 10 and the second vertebral body 20, one end of the height adjustment component 30 is inserted into the first mounting hole and is driven to connect with the first vertebral body 10, and the other end of the height adjustment component 30 is inserted into the second mounting hole and is driven to connect with the second vertebral body 20, the height adjustment component 30 can be used to adjust the distance between the first vertebral body 10 and the second vertebral body 20, thereby adjusting the height size of the vertebral prosthesis. Specifically, the detection component 40 is electrically connected to the height adjustment component 30, and the detection component 40 is used to detect the state parameters of the vertebral prosthesis. The height adjustment component 30 can adjust the distance between the first vertebral body 10 and the second vertebral body 20 according to the state parameters, thereby adjusting the height size of the vertebral prosthesis.

[0029] When the vertebral prosthesis provided in this embodiment is applied, since the detection component 40 is electrically connected to the height adjustment component 30, when the vertebral prosthesis collapses, the height adjustment component 30 will adjust the distance between the first vertebra 10 and the second vertebra 20 according to the detected state parameters, thereby adjusting the height size of the vertebral prosthesis, so that the first vertebra 10 and the second vertebra 20 are effectively in contact with the adjacent vertebrae, ensuring the normal operation of the vertebral prosthesis. In addition, the original spinal height can be restored, the nerve compression that may be caused by vertebral collapse can be eliminated, the patient's pain can be relieved, and the use effect and experience of the vertebral prosthesis can be improved.

[0030] The state parameters include but are not limited to the pressure parameters of the vertebral prosthesis, the density parameters of the adjacent vertebral bodies, and the fit parameters between the vertebral prosthesis and the adjacent vertebral bodies. In this embodiment, the detection component 40 detects the pressure parameters of the vertebral prosthesis, and the height adjustment component 30 adjusts the distance between the first vertebral body 10 and the second vertebral body 20 according to the detected pressure parameters.

[0031] In this embodiment, the height adjustment component 30 includes a driving part 31 and a transmission part 32. The driving part 31 is electrically connected to the detection component 40, and the driving part 31 is connected to the first vertebral body 10 and the second vertebral body 20 through the transmission part 32. When the vertebral prosthesis collapses, the driving part 31 drives the first vertebral body 10 and the second vertebral body 20 to move through the transmission part 32 to adjust the height size of the vertebral prosthesis. In other embodiments, a hydraulic rod or an electric push rod or other mechanism can be directly arranged between the first vertebral body 10 and the second vertebral body 20, and the hydraulic rod or the electric push rod or other mechanism can be used to adjust the distance between the first vertebral body 10 and the second vertebral body 20.

[0032] like Figure 3As shown, the transmission part 32 includes an adjusting screw 321, and the adjusting screw 321 includes a first section 3211 and a second section 3212. The first section 3211 is inserted into the first mounting hole and threadedly connected to the first vertebral body 10, and the second section 3212 is inserted into the second mounting hole and threadedly connected to the second vertebral body 20. When the adjusting screw 321 is driven to rotate by the driving part 31, the first vertebral body 10 and the second vertebral body 20 will move axially, so that the height size of the vertebral prosthesis can be adjusted.

[0033] Wherein, the first section 3211 and the second section 3212 can be separately arranged, or the first section 3211 and the second section 3212 can be connected. When the first section 3211 and the second section 3212 are separately arranged, the driving unit 31 is connected to the first section 3211 and the second section 3212 respectively, and the driving unit 31 can be used to drive the first section 3211 and the second section 3212 to rotate respectively, so that the positions of the first vertebral body 10 and the second vertebral body 20 can be adjusted respectively, and the adjustment of the vertebral prosthesis is more flexible. When the first section 3211 and the second section 3212 are connected, the driving unit 31 is directly connected to the adjusting screw 321, and the driving unit 31 can be used to drive the first section 3211 and the second section 3212 to rotate simultaneously, so that the positions of the first vertebral body 10 and the second vertebral body 20 can be adjusted simultaneously, and the structure of the vertebral prosthesis is simple and the stability is higher. In this embodiment, the first section 3211 and the second section 3212 are connected.

[0034] Specifically, the adjusting screw 321 also includes a third section, and the two ends of the third section are connected to the first section 3211 and the second section 3212 respectively, so as to realize the connection setting of the first section 3211 and the second section 3212. Among them, one of the first section 3211 and the second section 3212 is provided with a left-handed thread, and the other of the first section 3211 and the second section 3212 is provided with a right-handed thread. With the above structure, when the driving unit 31 drives the adjusting screw 321 to rotate, it can ensure that the first vertebral body 10 and the second vertebral body 20 move toward or away from each other at the same time. In this embodiment, the thread of the first section 3211 is a right-handed thread, the interior of the first vertebral body 10 is a right-handed internal thread, the thread of the second section 3212 is a left-handed thread, and the interior of the second vertebral body 20 is a left-handed internal thread. In other embodiments, the thread of the first section 3211 can be set to a left-handed thread, and the thread of the second section 3212 can be a right-handed thread.

[0035] In this embodiment, the transmission part 32 further includes a transmission gear 322, and the adjusting screw 321 is provided with a toothed structure 3213, the transmission gear 322 is meshed with the toothed structure 3213, the driving part 31 is drivingly connected with the transmission gear 322, and the driving part 31 can transmit the driving force to the adjusting screw 321 through the transmission gear 322, so that the adjusting screw 321 rotates. In addition, the gear transmission method has the advantages of simple structure and high mechanical stability.

[0036] Among them, an annular boss 3214 is provided in the middle of the adjusting screw 321, and the annular boss 3214 extends along the circumference of the adjusting screw 321, and the annular boss 3214 is provided on the third section. Specifically, tooth structures 3213 are provided at both ends of the annular boss 3214, and the transmission part 32 includes two transmission gears 322, and the two transmission gears 322 are respectively meshed with the tooth structures 3213 at both ends. The two transmission gears 322 are used to simultaneously drive the adjusting screw 321 to rotate, which can further improve the driving stability. In other embodiments, the tooth structure 3213 can be provided only on one side of the annular boss 3214, and the adjusting screw 321 can be driven to rotate by one transmission gear 322.

[0037] In this embodiment, the first vertebral body 10 and the second vertebral body 20 are both cylindrical structures, the first vertebral body 10 is sleeved on the first section 3211, the second vertebral body 20 is sleeved on the second section 3212, and the annular boss 3214 protrudes from the outer wall of the first vertebral body 10 and the second vertebral body 20. Specifically, the first vertebral body 10 and the second vertebral body 20 are set as a cylindrical structure and sleeved on the adjustment screw 321, which can reduce the volume of the vertebral prosthesis, improve the integration, and improve the stability of the vertebral prosthesis while achieving height adjustment. Among them, the annular boss 3214 protrudes from the outer wall of the first vertebral body 10 and the second vertebral body 20, so that the transmission gear 322 is easy to match with the toothed structure 3213 on the annular boss 3214.

[0038] In this embodiment, the detection assembly 40 includes a detection plate 41, which is arranged on the side walls of the first vertebral body 10 and the second vertebral body 20. After the vertebral prosthesis is implanted in the human body, the detection plate 41 will contact the tissue in the human body. When the vertebral prosthesis collapses, the pressure on the detection plate 41 will increase. At this time, the height adjustment assembly 30 can adjust the distance between the first vertebral body 10 and the second vertebral body 20 according to the pressure parameters detected by the detection plate 41. Specifically, the detection plate 41 is made of piezoelectric ceramics, and the detection plate 41 can output electrical signals of different strengths according to different pressures. The height adjustment assembly 30 can receive the electrical signal output by the detection plate 41 and can drive the transmission gear 322 to rotate according to the strength of the electrical signal. In addition, the detection plate 41 is located on the outside of the height adjustment assembly 30, and the detection plate 41 can be used to protect the height adjustment assembly 30.

[0039] In other embodiments, the detection component 40 can be set on the surface of the first vertebra 10 and the second vertebra 20 that contacts the adjacent vertebra. When the vertebral prosthesis collapses, the pressure on the detection component 40 will decrease. At this time, the height adjustment component 30 can adjust the distance between the first vertebra 10 and the second vertebra 20 according to the pressure parameters detected by the detection plate 41.

[0040] In order to ensure the axial movement of the first vertebral body 10 and the second vertebral body 20 , a rotation-stopping structure 50 is provided between the detection plate 41 and the first vertebral body 10 and the second vertebral body 20 , and the rotation-stopping structure 50 is used to prevent the first vertebral body 10 and the second vertebral body 20 from rotating.

[0041] Specifically, the vertebral prosthesis further includes a stopper 60, and a strip hole 70 is provided on the side wall of the first vertebral body 10 and the second vertebral body 20. The strip hole 70 extends along the height direction of the vertebral prosthesis, and the stopper 60 passes through the detection plate 41 and is inserted into the strip hole 70. The stopper 60 and the strip hole 70 cooperate to form a rotation-stopping structure 50. When the adjusting screw 321 rotates, since the first vertebral body 10 and the second vertebral body 20 are both threadedly matched with the adjusting screw 321, under the action of the rotation-stopping structure 50, the first vertebral body 10 and the second vertebral body 20 will move axially.

[0042] In this embodiment, a plurality of strip holes 70 are provided on the side walls of the first vertebral body 10 and the second vertebral body 20, and the plurality of strip holes 70 are arranged at intervals along the circumference of the first vertebral body 10 and the second vertebral body 20. Specifically, at least one strip hole 70 on the first vertebral body 10 and at least one strip hole 70 on the second vertebral body 20 cooperate with the stopper 60, and the remaining strip holes 70 play a role in reducing weight. In this embodiment, the vertebral prosthesis also includes two stoppers 60, and the two stoppers 60 respectively cooperate with a strip hole 70 on a first vertebral body 10 and a strip hole 70 on a second vertebral body 20 in a one-to-one correspondence. With the above structure, the weight of the device can be reduced while achieving anti-rotation.

[0043] In order to further improve the detection accuracy of the detection assembly 40 , a detection boss 411 is provided on a side of the detection plate 41 away from the first vertebral body 10 and the second vertebral body 20 .

[0044] Among them, the end surface of the first vertebra 10 away from the second vertebra 20 and the end surface of the second vertebra 20 away from the first vertebra 10 are both porous structures. The porous structure is a trabecular-like structure, which has an inducing effect on bone ingrowth, allowing human bone tissue to grow into the inside of the vertebral prosthesis, thereby achieving fusion of the vertebral prosthesis.

[0045] In order to reduce the weight of the device, a plurality of weight-reducing holes 3215 are provided on the adjusting screw 321. The plurality of weight-reducing holes 3215 are distributed at intervals along the circumference of the adjusting screw 321, and the weight-reducing holes 3215 extend along the axial direction of the adjusting screw 321. Specifically, a plurality of weight-reducing holes 3215 are provided on both the first section 3211 and the second section 3212. With the above structure, the weight of the adjusting screw 321 can be reduced while ensuring the structural strength.

[0046] Through the device provided in this embodiment, when the vertebral body collapses, the pressure on both sides of the detection component 40 increases, the driving part 31 can receive the electrical signal output by the detection component 40, and can drive the transmission gear 322 to rotate according to the strength of the electrical signal. The rotation of the transmission gear 322 drives the adjustment screw 321 to rotate. Since the first section 3211 and the second section 3212 of the adjustment screw 321 are right-handed threads and left-handed threads respectively, when the adjustment screw 321 rotates clockwise, the first vertebral body 10 and the second vertebral body 20 move away from each other, and vice versa, the first vertebral body 10 and the second vertebral body 20 move closer. When the vertebral body collapses, the distance between the first vertebral body 10 and the second vertebral body 20 increases, thereby restoring the original spinal height, eliminating the nerve compression that may be caused by the vertebral body collapse, eliminating pain, and eliminating the need for secondary surgery.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertebral prosthesis, characterized in that: The vertebral prosthesis comprises: A first vertebral body (10) having a first mounting hole; A second vertebral body (20) having a second mounting hole, wherein the first vertebral body (10) and the second vertebral body (20) are arranged at an interval; A height adjustment component (30) is arranged between the first vertebral body (10) and the second vertebral body (20), one end of the height adjustment component (30) is inserted into the first mounting hole and is drivingly connected to the first vertebral body (10), and the other end of the height adjustment component (30) is inserted into the second mounting hole and is drivingly connected to the second vertebral body (20); a detection component (40) electrically connected to the height adjustment component (30), the detection component (40) being used to detect a state parameter of the vertebral prosthesis, the height adjustment component (30) adjusting the distance between the first vertebral body (10) and the second vertebral body (20) according to the state parameter; The height adjustment assembly (30) comprises a driving part (31) and a transmission part (32), the driving part (31) being electrically connected to the detection assembly (40), the driving part (31) being drivingly connected to the first vertebral body (10) and the second vertebral body (20) via the transmission part (32), the transmission part (32) comprising an adjusting screw (321), the adjusting screw (321) comprising a first section (3211) and a second section (3212), the first section (3211) being inserted into the first mounting hole and being threadedly connected to the first vertebral body (10), the second section (3212) being inserted into the second mounting hole and being threadedly connected to the second vertebral body (20) The adjusting screw (321) further comprises a third section, two ends of the third section are respectively connected to the first section (3211) and the second section (3212), one of the first section (3211) and the second section (3212) is provided with a left-handed thread, and the other of the first section (3211) and the second section (3212) is provided with a right-handed thread, the transmission part (32) further comprises a transmission gear (322), the adjusting screw (321) is provided with a toothed structure (3213), the transmission gear (322) is meshed with the toothed structure (3213), and the driving part (31) is drivingly connected to the transmission gear (322); The detection assembly (40) comprises a detection plate (41), the detection plate (41) being arranged on the side walls of the first vertebral body (10) and the second vertebral body (20), and the detection plate (41) being located outside the height adjustment assembly (30), and a rotation-stopping structure (50) being arranged between the detection plate (41) and the first vertebral body (10) and the second vertebral body (20), the rotation-stopping structure (50) being used to prevent the first vertebral body (10) and the second vertebral body (20) from rotating.

2. The vertebral prosthesis according to claim 1, characterized in that: An annular boss (3214) is provided in the middle of the adjusting screw (321), the annular boss (3214) extending along the circumference of the adjusting screw (321), and the toothed structures (3213) are provided at both ends of the annular boss (3214). The transmission part (32) comprises two transmission gears (322), and the two transmission gears (322) are respectively meshed with the toothed structures (3213) at both ends in a one-to-one correspondence.

3. The vertebral prosthesis according to claim 1, characterized in that: The vertebral prosthesis further comprises a limiting member (60), and side walls of the first vertebral body (10) and the second vertebral body (20) are both provided with strip holes (70), the strip holes (70) extending along the height direction of the vertebral prosthesis, the limiting member (60) passes through the detection plate (41) and is arranged in the strip holes (70), and the limiting member (60) and the strip holes (70) cooperate to form the anti-rotation structure (50).

4. The vertebral prosthesis according to claim 1, characterized in that: A detection boss (411) is provided on a side of the detection plate (41) away from the first vertebral body (10) and the second vertebral body (20); The end surface of the first vertebral body (10) away from the second vertebral body (20) and the end surface of the second vertebral body (20) away from the first vertebral body (10) are both porous structures.

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