Vertebral prosthesis structure

Abstract

The application provides a vertebral body prosthesis structure, comprising: a prosthesis body; a connecting part movably arranged on the prosthesis body in a first direction, the connecting part comprising a connecting head and a transmission part, the connecting head is arranged at an end of the prosthesis body and used for connecting with a vertebral body, the transmission part is connected with the connecting head, at least part of the transmission part is located in the prosthesis body, and the first direction is an extension direction of the prosthesis body; and an operating part located in the prosthesis body, the operating part has an operating end, the operating end can be exposed to a circumferential surface of the prosthesis body, when the operating end is operated, the operating part moves in a second direction and is driven in cooperation with the transmission part to drive the connecting part to move, wherein the second direction is arranged at an angle with the first direction. The technical scheme of the application can effectively solve the problem that the stability and operation difficulty of the vertebral body prosthesis structure in the related art cannot be considered.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a vertebral prosthesis structure. Background Technology

[0002] Spinal tumors are a serious disease that threatens human health, with high rates of disability and death. Most spinal tumors cause osteolytic bone destruction, leading to pathological fractures, which in turn compress nerves and cause paralysis, severely impacting the patient's quality of life.

[0003] Currently, surgery is the primary treatment for spinal tumors. Common surgical methods include vertebroplasty, palliative surgery, intracapsular tumor resection, and total vertebral spondylotomy. After surgical resection of a spinal tumor, it is usually necessary to reconstruct spinal stability, and artificial vertebral replacement is a commonly used reconstruction method. Among related techniques, artificial vertebrae are mainly divided into three types: simple support type, open-fixation type, and adjustable-fixation type. However, each type has certain drawbacks. For example, simple support type artificial vertebrae have poor fixation; open-fixation type artificial vertebrae are often not adjustable in length, posing a risk of dislocation; adjustable-fixation type artificial vertebrae usually require additional instruments to maintain spinal stability, generally necessitating combined anterior and posterior approaches, leading to increased surgical trauma, prolonged surgery time, and higher medical costs. Summary of the Invention

[0004] The main objective of this invention is to provide a vertebral prosthesis structure to solve the problem that vertebral prosthesis structures in related technologies are difficult to balance stability and operational difficulty.

[0005] To achieve the above objectives, the present invention provides a vertebral prosthesis structure, comprising: a prosthesis body; a connecting portion movably disposed on the prosthesis body along a first direction, the connecting portion including a connector and a transmission member, the connector being disposed at the end of the prosthesis body and used for connection with the vertebral body, the transmission member being connected to the connector, at least a portion of the transmission member being located within the prosthesis body, the first direction being the extension direction of the prosthesis body; and an operating portion located within the prosthesis body, the operating portion having an operating end that can protrude from the circumferential surface of the prosthesis body, wherein when the operating end is operated, the operating portion moves along a second direction and drives the transmission member to move the connecting portion, wherein the second direction is set at an angle to the first direction.

[0006] Furthermore, the operating part also has a stop end, and the transmission component includes a transmission rod, one end of which is connected to the connector, and the other end of which is engaged with the stop end.

[0007] Furthermore, the prosthesis body includes a guide hole extending along a first direction, and a transmission rod is guided and engaged with the guide hole; and / or, a driving ramp is provided between the abutment and the transmission rod, the driving ramp being inclined away from the connector in the direction from the operating end to the abutment.

[0008] Furthermore, the prosthesis body includes a mounting hole and an inner core. The mounting hole extends along a second direction, and the inner core is disposed within the mounting hole and has an external thread. The operating part includes an operating rod slidably disposed within the mounting hole. The operating rod includes a connecting hole, and the inner surface of the connecting hole is provided with an internal thread that mates with the external thread. The inner core passes through the connecting hole. One end of the operating rod that protrudes from the circumferential surface of the prosthesis body forms an operating end, and the end of the operating rod opposite to the operating end forms an abutment.

[0009] Furthermore, the connector includes a connecting plate and multiple fixing teeth. The connecting plate is connected to the transmission component, and the multiple fixing teeth are located on the side of the connecting plate away from the prosthesis body.

[0010] Furthermore, the vertebral prosthesis structure also includes: a storage section disposed on the prosthesis body and used to store drugs; a shielding section disposed on the prosthesis body, the prosthesis body having a release port, the shielding section being movably disposed at the release port, the release port being able to communicate with the storage section; a sensing section disposed on the prosthesis body, the sensing section being able to generate a control signal based on the drug concentration at the vertebral prosthesis structure; and a control section connected to the sensing section, the control section controlling the movement of the shielding section based on the control signal.

[0011] Furthermore, the vertebral prosthesis structure also includes a switching element, the storage section has a storage cavity and a transfer cavity, the transfer cavity and the release port are connected, the storage cavity is used to store drugs, the switching element is disposed between the storage cavity and the transfer cavity, and the control unit controls the switching element to connect or disconnect the storage cavity and the transfer cavity according to the control signal.

[0012] Furthermore, the storage cavity is located above the transfer cavity. The vertebral prosthesis structure also includes a first rotating shaft, a swing plate, and a first connecting rod. The swing plate is disposed inside the prosthesis body, the first rotating shaft is located in the middle of the swing plate, the first end of the swing plate extends into the transfer cavity, and the first connecting rod is disposed on the circumferential surface of the prosthesis body and connected between the first rotating shaft and the shielding part. The rotation of the first rotating shaft drives the shielding part to move.

[0013] Furthermore, the vertebral prosthesis structure also includes a compression spring disposed on the prosthesis body, the compression spring being connected to the second end of the sway plate to apply a downward force to the second end of the sway plate so that the blocking part blocks the release port.

[0014] Furthermore, the vertebral prosthesis structure also includes a second rotating shaft, a second connecting rod, and a conveyor belt disposed on the prosthesis body. The shielding part includes a shielding plate. The conveyor belt is arranged around the outer periphery of the first rotating shaft and the second rotating shaft so that the first rotating shaft and the second rotating shaft rotate synchronously. The first connecting rod is hinged between the first rotating shaft and the first end of the shielding plate, and the second connecting rod is hinged between the second rotating shaft and the second end of the shielding plate.

[0015] Applying the technical solution of this invention, the prosthesis body is used to support two upper and lower cones, playing a major supporting role. Since the interval between the upper and lower cones is different, the connecting part is movably disposed on the prosthesis body along a first direction, allowing the overall size of the vertebral prosthesis structure to be adjusted to accommodate different interval sizes. Specifically, the connecting part includes a connector and a transmission component. The connector is disposed at the end of the prosthesis body and used to connect to the vertebral body. The transmission component is connected to the connector, and at least a portion of the transmission component is located within the prosthesis body. The operating part is also located within the prosthesis body, and the operating part has an operating end that can protrude from the prosthesis body. When the operating end is operated, the operating part moves along a second direction and engages with the transmission component to move the connecting part. The user adjusts the overall size of the vertebral prosthesis structure by operating the operating end. Compared to adjustable fixed artificial vertebrae in related technologies, the vertebral prosthesis structure of this application does not require additional instruments for maintenance; the doctor only needs to operate the operating end, making the operation simple. Furthermore, since the operating end is exposed on the circumferential surface of the prosthesis body, this surface is more easily visible to the doctor during surgery than other surfaces, facilitating operation. Therefore, the vertebral prosthesis structure can ensure connection stability through size adjustment, and the operating part and transmission component allow the doctor to easily adjust the size. Thus, the technical solution of this application effectively solves the problem of balancing stability and operational difficulty in vertebral prosthesis structures in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A frontal schematic view of a first embodiment of the vertebral prosthesis structure according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A frontal view of the connection part of the vertebral prosthesis structure;

[0019] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of the vertebral prosthesis structure;

[0020] Figure 4 It shows Figure 1 A cross-sectional schematic diagram of the operating part of the vertebral prosthesis structure;

[0021] Figure 5 It shows Figure 1 A frontal view of the inner core of the vertebral prosthesis structure;

[0022] Figure 6 A frontal schematic view of a second embodiment of the vertebral prosthesis structure according to the present invention is shown;

[0023] Figure 7 It shows Figure 6 A cross-sectional schematic diagram of a portion of the vertebral prosthesis structure.

[0024] The above figures include the following reference numerals:

[0025] a) First direction; b) Second direction;

[0026] 10. Prosthesis body; 11. Guide hole; 12. Mounting hole; 13. Inner core; 14. Release port;

[0027] 20. Connecting part; 21. Connecting head; 211. Connecting plate; 212. Fixed tooth; 22. Transmission component; 221. Transmission rod;

[0028] 30. Operating part; 31. Operating end; 32. Top end; 33. Driving inclined surface; 34. Operating lever; 341. Connecting hole;

[0029] 40. Storage section; 41. Storage cavity; 42. Transfer cavity;

[0030] 50. Shielding part; 51. Shielding plate;

[0031] 60. Sensor Department;

[0032] 70. Switching components;

[0033] 81. First rotating shaft; 82. Swing plate; 83. First connecting rod; 84. Compression spring; 85. Second rotating shaft; 86. Second connecting rod; 87. Conveyor belt. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] like Figures 1 to 5 As shown, this application provides a vertebral prosthesis structure. An embodiment of the vertebral prosthesis structure of this application includes: a prosthesis body 10, a connecting portion 20, and an operating portion 30. The connecting portion 20 is movably disposed on the prosthesis body 10 along a first direction a. The connecting portion 20 includes a connector 21 and a transmission member 22. The connector 21 is disposed at the end of the prosthesis body 10 and is used to connect with the vertebral body. The transmission member 22 is connected to the connector 21, and at least a portion of the transmission member 22 is located within the prosthesis body 10. The first direction a is the extending direction of the prosthesis body 10. The operating portion 30 is located within the prosthesis body 10 and has an operating end 31. The operating end 31 can protrude from the circumferential surface of the prosthesis body 10. When the operating end 31 is operated, the operating portion 30 moves along a second direction b and drives the transmission member 22 to move the connecting portion 20. The second direction b forms an angle with the first direction a.

[0038] Applying the technical solution of this embodiment, the prosthesis body 10 is used to support two cones located above and below, playing a major supporting role. Since the interval between the two cones is different, the connecting part 20 is movably disposed on the prosthesis body 10 along the first direction a, allowing the overall size of the vertebral prosthesis structure to be adjusted, thereby adapting to different interval sizes. Specifically, the connecting part 20 includes a connector 21 and a transmission member 22. The connector 21 is disposed at the end of the prosthesis body 10 and used to connect with the vertebral body. The transmission member 22 is connected to the connector 21, and at least a portion of the transmission member 22 is located within the prosthesis body 10. The operating part 30 is also located within the prosthesis body 10, and the operating part 30 has an operating end 31. The operating end 31 is exposed on the circumferential surface of the prosthesis body 10. When the operating end 31 is operated, the operating part 30 moves along the second direction b and drives the transmission member 22 to move the connecting part 20. The user can adjust the overall size of the vertebral prosthesis structure by operating the operating end 31. Compared with the adjustable fixed artificial vertebra in related technologies, the vertebral prosthesis structure of this embodiment does not require additional instruments for maintenance. The doctor only needs to operate the operating end 31 to complete the operation, which is simple. In addition, since the operating end 31 is exposed on the circumferential surface of the prosthesis body 10, the circumferential surface of the prosthesis body 10 is more easily exposed in the doctor's field of vision during the operation than other surfaces, which facilitates the doctor's operation. Therefore, the vertebral prosthesis structure can ensure connection stability through size adjustment, and the doctor can achieve size adjustment through simple operation through the operating part 30 and the transmission member 22. Therefore, the technical solution of this embodiment can effectively solve the problem that the vertebral prosthesis structure in related technologies is difficult to balance stability and operation difficulty.

[0039] like Figures 1 to 5 As shown, the operating part 30 also has a stop 32, and the transmission member 22 includes a transmission rod 221. One end of the transmission rod 221 is connected to the connector 21, and the other end of the transmission rod 221 abuts against the stop 32. Specifically, by setting the stop 32 and the transmission rod 221, the lateral movement of the operating part 30 (that is, the second direction b) is converted into the vertical movement of the transmission member 22 (that is, the first direction a), thereby forming the vertical movement of the connector 20.

[0040] like Figures 1 to 5As shown, the prosthesis body 10 includes a guide hole 11 extending along a first direction a. The transmission rod 221 is guided and engaged with the guide hole 11, thereby enabling the vertical movement of the transmission rod 221 without deviation. A driving ramp 33 is provided between the abutment 32 and the transmission rod 221. The driving ramp 33 is inclined away from the connector 21 in the direction from the operating end 31 to the abutment 32. The driving ramp 33 can be located at the abutment 32 or at the lower end of the transmission rod 221. In this embodiment, the driving ramp 33 is located at the abutment 32. By providing the driving ramp 33, when the driving ramp 33 abuts the lower end of the transmission rod 221, the vertical movement of the transmission rod 221 can be achieved.

[0041] like Figures 1 to 5 As shown, the prosthesis body 10 includes a mounting hole 12 and an inner core 13. The mounting hole 12 extends along the second direction b. The inner core 13 is disposed in the mounting hole 12 and has an external thread. The operating part 30 includes an operating rod 34 slidably disposed in the mounting hole 12. The operating rod 34 includes a connecting hole 341. The inner surface of the connecting hole 341 is provided with an internal thread that mates with the external thread. The inner core 13 passes through the connecting hole 341. One end of the operating rod 34 that protrudes from the circumferential surface of the prosthesis body 10 forms an operating end 31. The end of the operating rod 34 opposite to the operating end 31 forms an abutment end 32. Specifically, the mounting hole 12 allows for the installation of the inner core 13 and the operating rod 34. The inner core 13 passes through the connecting hole 341, thereby guiding the lateral movement of the operating rod 34. The external thread of the inner core 13 and the internal thread in the connecting hole 341 are threadedly engaged, thereby achieving the lateral positioning engagement of the operating rod 34, which facilitates adjustment by the user. The end of the operating rod 34 that protrudes from the circumferential surface of the prosthesis body 10 forms the operating end 31. A hexagonal screw hole is provided at the end of the operating rod 34 that protrudes from the circumferential surface of the prosthesis body 10, which allows the user to drive the inclined plane 33 to move laterally by rotating the operating rod 34.

[0042] like Figures 1 to 5 As shown, the connector 21 includes a connecting plate 211 and a plurality of fixing teeth 212. The connecting plate 211 is connected to the transmission component 22, and the plurality of fixing teeth 212 are disposed on the side of the connecting plate 211 away from the prosthesis body 10. Specifically, the fixing teeth 212 can enhance the connection strength between the vertebral prosthesis structure and the vertebral body.

[0043] like Figure 6 and Figure 7As shown, the vertebral prosthesis structure also includes: a storage section 40, a shielding section 50, a sensing section 60, and a control section; the storage section 40 is disposed on the prosthesis body 10 and is used to store drugs; the shielding section 50 is disposed on the prosthesis body 10, the prosthesis body 10 is provided with a release port 14, the shielding section 50 is movably disposed at the release port 14, and the release port 14 can communicate with the storage section 40; the sensing section 60 is disposed on the prosthesis body 10, and the sensing section 60 can generate a control signal according to the drug concentration at the vertebral prosthesis structure; the control section is signal-connected to the sensing section 60, and the control section controls the movement of the shielding section 50 according to the control signal. Specifically, after the vertebral prosthesis structure is implanted, medication needs to be released at the implantation site to improve the patient's recovery. The medication is stored in a storage unit 40, and a shielding part 50 is disposed on the prosthesis body 10. The prosthesis body 10 has a release port 14, and the shielding part 50 is movably disposed at the release port 14. The release port 14 can communicate with the storage unit 40. By moving the shielding part 50, the release port 14 can be shielded or exposed, thereby releasing or not releasing the medication. The cooperation between the sensing unit 60 and the control unit allows the vertebral prosthesis structure to control the movement of the shielding part 50 according to the drug concentration, thereby accurately matching the actual drug concentration at the vertebral prosthesis structure to deliver appropriate medication to the patient. The sensing unit 60 can be an aptamer sensor, which is a type of biosensor that uses an aptamer as a molecular recognition element. It can selectively bind to specific targets and convert the binding event into a measurable signal because aptamers (a single-stranded DNA / RNA molecule) can be designed to specifically recognize and bind to a certain drug molecule. Upon binding, its electrochemical properties (such as current and impedance) change, thereby generating a measurable signal. It is small in size, highly customizable, and suitable for integration. Aptamers, single-stranded DNA or RNA fragments screened by SELEX technology, can recognize and bind to targets with high specificity and high affinity, much like "chemical antibodies." The process of aptamer-target binding is converted into readable electrical, optical, and other physical signals.

[0044] like Figure 6 and Figure 7 As shown, the vertebral prosthesis structure also includes a switch 70. The storage section 40 has a storage cavity 41 and a transfer cavity 42, which is connected to the release port 14. The storage cavity 41 is used to store medication. The switch 70 is disposed between the storage cavity 41 and the transfer cavity 42. The control unit controls the switch 70 to connect or disconnect the storage cavity 41 and the transfer cavity 42 according to a control signal. Specifically, the switch 70 enables the medication in the storage cavity 41 to be controllably transferred to the transfer cavity 42, and the medication is released only after the release amount is determined, preventing the storage cavity 41 from being directly connected to the release port 14, which would make it difficult to control the release amount of the medication.

[0045] like Figure 6 and Figure 7 As shown, the storage cavity 41 is located above the transfer cavity 42. The vertebral prosthesis structure also includes a first rotating shaft 81, a swing plate 82, and a first connecting rod 83. The swing plate 82 is disposed within the prosthesis body 10, and the first rotating shaft 81 is located in the middle of the swing plate 82. The first end of the swing plate 82 extends into the transfer cavity 42. The first connecting rod 83 is disposed on the circumferential surface of the prosthesis body 10 and connects the first rotating shaft 81 and the blocking part 50. The rotation of the first rotating shaft 81 causes the blocking part 50 to move. Specifically, under the action of gravity, the drug causes the first end of the swing plate 82 to rotate, thereby driving the rotation of the swing plate 82, which in turn drives the first rotating shaft 81 to rotate, which in turn drives the blocking part 50 to move, thereby exposing the release port 14.

[0046] like Figure 6 and Figure 7 As shown, the vertebral prosthesis structure also includes a compression spring 84 disposed on the prosthesis body 10. The compression spring 84 is connected to the second end of the swing plate 82 to apply a downward force to the second end of the swing plate 82 so that the blocking part 50 blocks the release port 14. Specifically, when the amount of drug is consumed to a certain extent, the force exerted by the drug on the first end of the swing plate 82 is less than the force exerted by the compression spring 84 on the second end of the swing plate 82, thereby resetting the blocking part 50 to the position of blocking the release port 14.

[0047] like Figure 6 and Figure 7 As shown, the vertebral prosthesis structure also includes a second rotating shaft 85, a second connecting rod 86, and a conveyor belt 87 disposed on the prosthesis body 10. The shielding part 50 includes a shielding plate 51. The conveyor belt 87 is arranged around the outer periphery of the first rotating shaft 81 and the second rotating shaft 85 so that the first rotating shaft 81 and the second rotating shaft 85 rotate synchronously. The first connecting rod 83 is hinged between the first rotating shaft 81 and the first end of the shielding plate 51, and the second connecting rod 86 is hinged between the second rotating shaft 85 and the second end of the shielding plate 51. Specifically, the arrangement of the second rotating shaft 85 and the second connecting rod 86 makes the movement of the shielding plate 51 more stable.

[0048] In the description of this invention, it should be understood that "a plurality of" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vertebral body prosthetic structure, comprising: The prosthesis body (10) comprises: a connecting part (20) movably arranged on the prosthesis body (10) along a first direction (a), the connecting part (20) comprising a connecting head (21) arranged at an end of the prosthesis body (10) and used for connecting with a vertebral body, and a transmission part (22) connected with the connecting head (21), at least part of the transmission part (22) being located in the prosthesis body (10), the first direction (a) being an extension direction of the prosthesis body (10); an operating part (30) located in the prosthesis body (10), the operating part (30) having an operating end (31) capable of being exposed to a circumferential surface of the prosthesis body (10), the operating end (31) being operated to move the operating part (30) along a second direction (b) and drive the transmission part (22) to move the connecting part (20), wherein the second direction (b) is arranged at an angle with the first direction (a); The vertebral prosthesis structure further comprises: a storage part (40) arranged on the prosthesis body (10) and used for storing a drug; a shielding part (50) arranged on the prosthesis body (10), the prosthesis body (10) being provided with a release port (14), the shielding part (50) being movably arranged at the release port (14), and the release port (14) being capable of communicating with the storage part (40); a sensing part (60) arranged on the prosthesis body (10), the sensing part (60) being capable of generating a control signal according to a drug concentration at the vertebral prosthesis structure; a control part connected with the sensing part (60) in signal, the control part controlling the shielding part (50) to move according to the control signal; The vertebral prosthesis structure further comprises a switching part (70), the storage part (40) has a storage cavity (41) and a transfer cavity (42), the transfer cavity (42) and the release port (14) are communicated, the storage cavity (41) is used for storing the drug, the switching part (70) is arranged between the storage cavity (41) and the transfer cavity (42), and the control part controls the switching part (70) to communicate or block the storage cavity (41) and the transfer cavity (42) according to the control signal. The operating part (30) further has an abutting end (32), the transmission part (22) comprises a transmission rod (221), one end of the transmission rod (221) is connected with the connecting head (21), and the other end of the transmission rod (221) is in abutting cooperation with the abutting end (32).

2. The corpectomy prosthetic structure of claim 1, wherein, 3. The vertebral prosthesis structure according to claim 2, wherein the prosthesis body (10) comprises a guide hole (11) extending along the first direction (a), and the transmission rod (221) is in guide cooperation with the guide hole (11); and / or ​ A driving slope (33) is arranged between the abutting end (32) and the transmission rod (221), and is arranged to incline away from the connector (21) in the direction from the operation end (31) to the abutting end (32).

4. The corpectomy prosthetic structure of claim 2, wherein, The prosthesis body (10) comprises a mounting hole (12) extending along the second direction (b) and an inner core (13) arranged in the mounting hole (12) and having an external thread, and the operation part (30) comprises an operation rod (34) slidably arranged in the mounting hole (12), the operation rod (34) comprising a connecting hole (341) having an inner surface provided with an internal thread matched with the external thread of the inner core (13), the inner core (13) being arranged in the connecting hole (341), and one end of the operation rod (34) exposed to the circumferential surface of the prosthesis body (10) forming the operation end (31), and the other end of the operation rod (34) opposite to the operation end (31) forming the abutting end (32).

5. The corpectomy prosthetic structure of claim 1, wherein, The connector (21) comprises a connecting plate (211) connected with the transmission part (22) and a plurality of fixing teeth (212) arranged on the side of the connecting plate (211) away from the prosthesis body (10).

6. The corpectomy prosthetic structure of claim 1, wherein, The storage cavity (41) is located above the transfer cavity (42), and the vertebral prosthesis structure further comprises a first rotating shaft (81), a swing plate (82) and a first connecting rod (83), the swing plate (82) is arranged in the prosthesis body (10), the first rotating shaft (81) is located in the middle of the swing plate (82), the first end of the swing plate (82) extends into the transfer cavity (42), and the first connecting rod (83) is arranged on the circumferential surface of the prosthesis body (10) and connected between the first rotating shaft (81) and the shielding part (50), and the first rotating shaft (81) rotates to drive the shielding part (50) to move.

7. The corpectomy prosthetic structure of claim 6, wherein, The vertebral prosthesis structure further comprises a compression spring part (84) arranged on the prosthesis body (10), the compression spring part (84) being connected with the second end of the swing plate (82) to apply a downward force to the second end of the swing plate (82) so that the shielding part (50) shields the release opening (14).

8. The corpectomy prosthetic structure of claim 6, wherein, The vertebral prosthesis structure further comprises a second rotating shaft (85), a second connecting rod (86) and a conveyor belt (87) arranged on the prosthesis body (10), the shielding part (50) comprises a shielding plate (51), the conveyor belt (87) is arranged around the outer circumferences of the first rotating shaft (81) and the second rotating shaft (85) so that the first rotating shaft (81) and the second rotating shaft (85) rotate synchronously, the first connecting rod (83) is hingedly connected between the first rotating shaft (81) and the first end of the shielding plate (51), and the second connecting rod (86) is hingedly connected between the second rotating shaft (85) and the second end of the shielding plate (51).

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