Demonstration device and demonstration method for ossification of posterior longitudinal ligament of cervical vertebra

Abstract

The invention relates to a demonstration device and a demonstration method for cervical vertebra posterior longitudinal ligament ossification. The demonstration device comprises a box body and a demonstration model arranged in the box body, the demonstration model comprises a cervical vertebra, a power supply, a power mechanism, a storage chamber and more than two ossification cavities, a first ossification cavity is arranged in a first spinal canal and extends along a first direction, and a second ossification cavity is arranged in a second spinal canal and extends along a second direction; a first power unit is connected with the first ossification cavity through a first pipeline and used for injecting the ossification medium in the storage chamber into the first ossification cavity, and a second power unit is connected with the second ossification cavity through a second pipeline and used for injecting the ossification medium in the storage chamber into the second ossification cavity. And the second power unit is used for injecting the ossification medium in the storage chamber into the second ossification cavity. Different from the prior art, the system can truly reflect the lesion process of the cervical vertebra posterior longitudinal ligament ossification.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching demonstrations, and particularly relates to a demonstration device and a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine. Background Art

[0002] Ossification of the posterior longitudinal ligament of the cervical spine (OPLL) is a relatively common spinal disease, which refers to the ossification of the posterior longitudinal ligament behind the cervical vertebrae, resulting in spinal canal stenosis, compression of the spinal cord and nerve roots, and thus causing a series of clinical symptoms.

[0003] Ossification of the posterior longitudinal ligament of the cervical spine is a complex and continuous process from early hyperplasia, punctate calcification, chondrification to complete ossification. The ossified substance will grow longitudinally and transversely, and subsequently, segmental, continuous, and mixed types of ossification segments of the posterior longitudinal ligament of the cervical spine will be formed successively; The following problems exist in the prior art: In the existing teaching process, there is no demonstration model for the pathological process of ossification of the posterior longitudinal ligament of the cervical spine, and in the teaching process, the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected.

[0004] The above statements are only used to provide background technical information related to the present application, and do not necessarily constitute prior art. Summary of the Invention

[0005] In view of the above problems, the present application provides a demonstration device and a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, which are used to solve the technical problem that in the existing teaching process, there is no demonstration model for the pathological process of ossification of the posterior longitudinal ligament of the cervical spine, and in the teaching process, the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected.

[0006] To achieve the above object, in a first aspect, the present invention provides a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, including a box body and a demonstration model disposed in the box body; The demonstration model includes a cervical vertebra, a power source, a power mechanism, a storage chamber, and two or more ossification cavities. The cervical vertebra includes a first vertebral body and a second vertebral body arranged in a first direction. A first spinal canal is disposed in the first vertebral body, and a second spinal canal is disposed in the second vertebral body. The demonstration model includes a first ossification cavity and a second ossification cavity. The first ossification cavity and the second ossification cavity are of a preset shape. The first ossification cavity is disposed in the first spinal canal and extends along the first direction. The second ossification cavity is disposed in the second spinal canal and extends along a second direction; The storage chamber is used to store the ossification medium. The power supply is electrically connected to the power mechanism. The power mechanism is arranged in the storage chamber. The power mechanism includes a first power unit and a second power unit. The first power unit is connected to the first ossification cavity through a first pipeline. The first power unit is used to inject the ossification medium in the storage chamber into the first ossification cavity. The second power unit is connected to the second ossification cavity through a second pipeline. The second power unit is used to inject the ossification medium in the storage chamber into the second ossification cavity.

[0007] Different from the prior art, the above technical solution includes a cervical vertebra, a power supply, a power mechanism, a storage chamber and more than two ossification cavities through a demonstration model. The demonstration model includes a first ossification cavity and a second ossification cavity. The first ossification cavity is arranged in the first spinal canal and extends along a first direction. The second ossification cavity is arranged in the second spinal canal and extends along a second direction. The storage chamber is used to store the ossification medium. The first power unit is connected to the first ossification cavity through a first pipeline. The first power unit is used to inject the ossification medium in the storage chamber into the first ossification cavity. The second power unit is connected to the second ossification cavity through a second pipeline. The second power unit is used to inject the ossification medium in the storage chamber into the second ossification cavity. In this way, the ossification medium can be injected into the first ossification cavity through the first power unit. The ossification medium is slowly injected into the first ossification cavity and extends along the extension direction of the first ossification cavity. The first ossification cavity is of a preset shape and extends along the first direction, that is, longitudinally, simulating the longitudinal growth process of the ossified substance. The ossification medium can be injected into the second ossification cavity through the second power unit. The ossification medium is slowly injected into the second ossification cavity and extends along the extension direction of the second ossification cavity. The second ossification cavity is of a preset shape and extends along the second direction, that is, transversely, simulating the transverse growth process of the ossified substance, and can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical vertebra.

[0008] As an implementation manner of the present invention, the demonstration model further includes a first balloon and a second balloon. The first balloon is arranged in the first ossification cavity and is communicated with the first pipeline. The second balloon is arranged in the second ossification cavity and is communicated with the second pipeline.

[0009] In this way, the ossification medium can be injected into the first balloon and the second balloon. The first ossification cavity restricts the change of the first balloon, and the second ossification cavity restricts the change of the second balloon. After the demonstration is completed, the first balloon and the second balloon can be taken out and new balloons can be put on without cleaning the first ossification cavity and the second ossification cavity, so that the demonstration model can be reused and the demonstration cost can be reduced.

[0010] As an embodiment of the present invention, the first ossification cavity is detachably connected to the first vertebral body, and the second ossification cavity is detachably connected to the second vertebral body.

[0011] In this way, one end of the first ossification cavity is detachably connected to the first vertebral body, the first ossification cavity can be detached, the used first balloon can be taken out, and then a new first balloon can be replaced, which is convenient for replacing the first balloon; one end of the second ossification cavity is detachably connected to the second vertebral body, the second ossification cavity can be detached, the used second balloon can be taken out, and then a new second balloon can be replaced, which is convenient for replacing the second balloon.

[0012] As an embodiment of the present invention, the cervical vertebra further includes a third vertebral body and a fourth vertebral body arranged along a first direction, a third spinal canal is arranged in the third vertebral body, and a fourth spinal canal is arranged in the fourth vertebral body; The demonstration model includes a third ossification cavity, the third ossification cavity is arranged in the third spinal canal and the fourth spinal canal, the third ossification cavity extends along the first direction, the third ossification cavity is respectively connected to the third vertebral body and the fourth vertebral body, the power mechanism further includes a third power unit, and the third power unit is connected to the third ossification cavity through a third pipeline, and the third power unit is used to inject the ossification medium in the storage chamber into the third ossification cavity.

[0013] In this way, the ossification medium can be injected into the third ossification cavity through the third power unit. The third ossification cavity is also in a preset shape. The ossification medium is slowly injected into the third ossification cavity, and the ossification medium extends along the extension direction of the third ossification cavity, simulating the pathological process of the continuous type of ossification of the posterior longitudinal ligament of the cervical vertebra; in other embodiments, the cervical vertebra can be provided with a two-layer structure along a third direction, the first vertebral body and the second vertebral body are in the first layer, and the first layer can be demonstrated alone. The third vertebral body and the fourth vertebral body are in the second layer, and the second layer can also be demonstrated alone, which can reduce the length of the demonstration model in the first direction.

[0014] As an embodiment of the present invention, the demonstration model further includes a third balloon, the third balloon is arranged in the third ossification cavity, the third balloon is connected to the third pipeline, and the third ossification cavity is respectively detachably connected to the third vertebral body and the fourth vertebral body.

[0015] In this way, the ossification medium can be injected into the third balloon. The third ossification cavity restricts the change of the third balloon. After the demonstration is completed, the third ossification cavity can be detached, the third balloon can be taken out, the used third balloon can be taken out, and then a new third balloon can be replaced, which is convenient for replacing the third balloon.

[0016] As an embodiment of the present invention, the cervical vertebra further includes a fifth vertebra and a sixth vertebra arranged along a first direction. A fifth spinal canal is provided in the fifth vertebra, and a sixth spinal canal is provided in the sixth vertebra; The demonstration model includes a fourth ossification cavity, which is provided in the fifth spinal canal and the sixth spinal canal. The fourth ossification cavity extends along the first direction and is respectively connected to the fifth vertebra and the sixth vertebra. The fourth ossification cavity is connected to the third ossification cavity.

[0017] In this way, the fourth ossification cavity can be communicated with the third ossification cavity, and the ossification medium in the third ossification cavity can enter the fourth ossification cavity, so as to demonstrate that the ossified substance in the third ossification cavity continues to spread in the direction of the fourth ossification cavity and forms a whole, simulating the pathological process of the continuous type of ossification of the posterior longitudinal ligament of the cervical vertebra; in other embodiments, the cervical vertebra can be provided with a two-layer structure along a third direction. The first vertebra and the second vertebra are in the first layer, the third vertebra and the fourth vertebra are in the second layer, and the fifth vertebra and the sixth vertebra can also be in the second layer, in the same layer as the third vertebra and the fourth vertebra, which can reduce the length of the demonstration model in the first direction.

[0018] As an embodiment of the present invention, the demonstration model further includes a valve, which is provided between the third ossification cavity and the fourth ossification cavity. The valve is used to open or close the channel between the third ossification cavity and the fourth ossification cavity.

[0019] In this way, by providing a valve between the third ossification cavity and the fourth ossification cavity, the channel between the third ossification cavity and the fourth ossification cavity can be opened or closed, so that the third ossification cavity can be demonstrated alone, or the third ossification cavity and the fourth ossification cavity can be communicated to form a longer demonstration ossified structure, which is flexibly used. The valve is an electronic valve, and the electronic valve is connected to a power supply, and the power supply supplies power to the electronic valve.

[0020] As an embodiment of the present invention, the ossification medium is bone cement, and a stirring component is provided in the storage chamber. The power supply is electrically connected to the stirring component, and the stirring component is used to stir the ossification medium in the storage chamber.

[0021] In this way, at the beginning, the bone cement powder and liquid need to be mixed, and it is necessary to stir well to make the materials evenly mixed. As long as the bone cement powder and liquid are added into the storage chamber, the stirring component stirs the bone cement powder and liquid, and then it can be injected into the ossification cavity. The stirring component is convenient for stirring the bone cement powder and liquid. The storage chamber is detachable, which is convenient for replacing and cleaning the storage chamber.

[0022] As an embodiment of the present invention, the demonstration model further includes a first button, a second button, a first light-emitting member, and a second light-emitting member. The power supply is electrically connected to the first button, the second button, the first light-emitting member, and the second light-emitting member respectively. The first light-emitting member is disposed opposite to the first ossification cavity, and the second light-emitting member is disposed opposite to the second ossification cavity. The first button is connected to and controls the first light-emitting member and the first power unit, and the second button is connected to and controls the second light-emitting member and the second power unit.

[0023] In this way, the first light-emitting member and the first power unit can be controlled by the first button. The first light-emitting member is disposed inside or outside the first ossification cavity. The flashing of the first light-emitting member indicates that the ossification medium starts to be injected into the first ossification cavity, attracting the attention of viewers. The second light-emitting member and the second power unit can be controlled by the second button. The second light-emitting member is disposed inside or outside the second ossification cavity. The flashing of the second light-emitting member indicates that the ossification medium starts to be injected into the second ossification cavity, attracting the attention of viewers. A third button and a third light-emitting member can also be provided. The third button controls the third power unit, and the third light-emitting member is disposed inside or outside the third ossification cavity. A fourth button can also be provided, and the fourth button controls the valve between the third ossification cavity and the fourth ossification cavity.

[0024] To achieve the above object, in a second aspect, the inventor provides a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, including the demonstration device for ossification of the posterior longitudinal ligament of the cervical spine as described in any one of the above, and including the following steps: Add the ossification medium into the storage chamber; Turn on the first power unit and the first light-emitting member. The first light-emitting member flashes, and the first power unit injects the ossification medium into the first ossification cavity through the first pipeline, and observe the flow direction of the ossification medium in the first ossification cavity and the state change of the ossification medium; Turn on the second power unit and the second light-emitting member. The second light-emitting member flashes, and the second power unit injects the ossification medium into the second ossification cavity through the second pipeline, and observe the flow direction of the ossification medium in the second ossification cavity and the state change of the ossification medium; Open the first ossification cavity and / or the second ossification cavity, and take out the ossification medium.

[0025] Different from the prior art, the technical solution of the present application can inject an ossification medium into the first ossification cavity through the first power unit. The ossification medium is slowly injected into the first ossification cavity and extends along the extension direction of the first ossification cavity. The first ossification cavity is in a preset shape and extends along the first direction, that is, longitudinally, simulating the longitudinal growth process of the ossified substance. The ossification medium can be injected into the second ossification cavity through the second power unit. The ossification medium is slowly injected into the second ossification cavity and extends along the extension direction of the second ossification cavity. The second ossification cavity is in a preset shape and extends along the second direction, that is, transversely, simulating the transverse growth process of the ossified substance, which can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical vertebra.

[0026] The above description of the invention content is only an overview of the technical solution of the present application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of the present application, and thus can be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features and advantages of the present application more easily understood, the following is described in conjunction with the specific embodiments and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are only used to illustrate the principles, implementation methods, applications, features and effects of the specific embodiments of the present application and other related contents, and should not be considered as a limitation to the present application.

[0028] In the drawings of the specification: Figure 1 is a schematic structural diagram of a box body according to an embodiment of the present application; Figure 2 is a schematic structural diagram of a demonstration model according to an embodiment of the present application; Figure 3 is a schematic diagram of a first vertebral body according to an embodiment of the present application; Figure 4 is a usage state diagram of the first ossification cavity during the use of the present application; Figure 5 is a usage state diagram of the second ossification cavity during the use of the present application; Figure 6 is a schematic structural diagram of the third ossification cavity and the fourth ossification cavity during the use of the present application; Figure 7 is a system block diagram between a storage room and an ossification cavity according to an embodiment of the present application; Figure 8 is a circuit schematic diagram of a demonstration device for ossification of the posterior longitudinal ligament of the cervical vertebra of the present application.

[0029] The reference numerals involved in the above drawings are described as follows: a, the first direction, b, the second direction, c, the third direction; 10. Housing, 101. First button, 102. Second button, 103. Third button, 104. Fourth button; 20. Demonstration model, 21. Cervical vertebra 211. First vertebral body, 212. Second vertebral body, 213. Third vertebral body, 214. Fourth vertebral body, 215. Fifth vertebral body, 216. Sixth vertebral body 221. First spinal canal, 222. Second spinal canal, 223. Third spinal canal, 224. Fourth spinal canal, 225. Fifth spinal canal, 226. Sixth spinal canal 22. Power supply, 231. First power unit, 232. Second power unit, 233. Third power unit 24. Storage room, 241. Stirring assembly, 25. First ossification cavity, 26. Second ossification cavity, 27. Third ossification cavity, 28. Fourth ossification cavity, 29. Valve 261. First light-emitting element, 262. Second light-emitting element, 263. Third light-emitting element, 264. Fourth light-emitting element 271. First pipeline, 272. Second pipeline, 273. Third pipeline 30. Power cord Detailed implementation mode

[0030] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following is described in detail with reference to the specific examples listed and in conjunction with the attached drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0031] Referring to "embodiment" in this text means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0032] Unless otherwise defined, the meanings of the technical terms used in this text are the same as those generally understood by those skilled in the technical field to which this application belongs; the use of relevant terms in this text is only for describing specific embodiments and is not intended to limit this application.

[0033] In the description of the present application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A exists, B exists, and both A and B exist simultaneously. Additionally, in this text, the character " / " generally represents an "or" logical relationship between the associated objects before and after.

[0034] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0035] Without further limitations, in the present application, the open-ended expressions such as "comprising", "including", "having", or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product that includes the described elements. Thus, in a process, method, or product that includes a series of elements, it can include not only those defined elements, but also other elements that are not explicitly listed, or elements that are inherent to such a process, method, or product.

[0036] Similar to the understanding in the "Examination Guidelines", in the present application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0037] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings. It is only for the convenience of describing the specific embodiments of the present application or for the reader's understanding, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.

[0038] In the existing teaching process, there is no demonstration model for the pathological process of ossification of the posterior longitudinal ligament of the cervical spine, and in the teaching process, the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected.

[0039] In view of this, an embodiment of the present application provides a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, including a box body 10 and a demonstration model 20 disposed inside the box body 10; the demonstration model 20 includes a cervical vertebra 21, a power source 22, a power mechanism, a storage chamber 24, and more than two ossification cavities. The cervical vertebra 21 includes a first vertebral body 211 and a second vertebral body 212 arranged along a first direction (the direction indicated by arrow a in the figure). The demonstration model 20 includes a first ossification cavity 25 and a second ossification cavity 26. The first ossification cavity 25 and the second ossification cavity 26 are of a preset shape. The first ossification cavity 25 is disposed inside a first spinal canal 221 and extends along the first direction (the direction indicated by arrow a in the figure). The second ossification cavity 26 is disposed inside a second spinal canal 222 and extends along a second direction (the direction indicated by arrow b in the figure). The storage chamber 24 is used for storing an ossification medium. The power source 22 is electrically connected to the power mechanism. The power mechanism is disposed inside the storage chamber 24. A first power unit 231 is connected to the first ossification cavity 25 through a first pipeline 271. The first power unit 231 is used for injecting the ossification medium in the storage chamber 24 into the first ossification cavity 25. A second power unit 232 is connected to the second ossification cavity 26 through a second pipeline 272. The second power unit 232 is used for injecting the ossification medium in the storage chamber 24 into the second ossification cavity 26. The ossification medium can be injected into the first ossification cavity 25 through the first power unit 231. The ossification medium is slowly injected into the first ossification cavity 25 and extends along the extension direction of the first ossification cavity 25. The first ossification cavity 25 is of a preset shape and extends along the first direction (the direction indicated by arrow a in the figure), that is, longitudinally, simulating the process of longitudinal growth of the ossified substance. The ossification medium can be injected into the second ossification cavity 26 through the second power unit 232. The ossification medium is slowly injected into the second ossification cavity 26 and extends along the extension direction of the second ossification cavity 26. The second ossification cavity 26 is of a preset shape and extends along the second direction (the direction indicated by arrow b in the figure), that is, transversely, simulating the process of transverse growth of the ossified substance, and can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0040] According to some embodiments of the present application, please refer to Figures 1 to 8, This embodiment relates to a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, including a box body 10 and a demonstration model 20 arranged in the box body 10; the demonstration model 20 includes a cervical vertebra 21, a power supply 22, a power mechanism, a storage chamber 24, and more than two ossification cavities. The cervical vertebra 21 includes a first vertebral body 211 and a second vertebral body 212 arranged in a first direction (the direction indicated by arrow a in the figure). A first spinal canal 221 is arranged in the first vertebral body 211, and a second spinal canal 222 is arranged in the second vertebral body 212. The demonstration model 20 includes a first ossification cavity 25 and a second ossification cavity 26. The first ossification cavity 25 and the second ossification cavity 26 are of a preset shape. The first ossification cavity 25 is arranged in the first spinal canal 221 and extends along the first direction (the direction indicated by arrow a in the figure). The second ossification cavity 26 is arranged in the second spinal canal 222 and extends along a second direction (the direction indicated by arrow b in the figure); the storage chamber 24 is used to store ossification medium. The power supply 22 is electrically connected to the power mechanism. The power mechanism is arranged in the storage chamber 24. The power mechanism includes a first power unit 231 and a second power unit 232. The first power unit 231 is connected to the first ossification cavity 25 through a first pipeline 271. The first power unit 231 is used to inject the ossification medium in the storage chamber 24 into the first ossification cavity 25. The second power unit 232 is connected to the second ossification cavity 26 through a second pipeline 272. The second power unit 232 is used to inject the ossification medium in the storage chamber 24 into the second ossification cavity 26.

[0041] In some embodiments, the structure of the cervical vertebra 21 is as Figure 2 shown. Taking the first vertebral body 211 as an example, the inside of the first vertebral body 211 is hollow. The first spinal canal 221 is inside the first vertebral body 211. Ossified substances grow in the first spinal canal 221. The first ossification cavity 25 is in the first spinal canal 221. The demonstration model 20 of the present application demonstrates Figure 2 the structure of the A-A section of the cervical vertebra 21 in The first spinal canal 221 is a groove. The first ossification cavity 25 is placed in the first spinal canal 221. The first ossification cavity 25 is a structure of a receiving groove; The structures of the second spinal canal 222, the third spinal canal 223, the fourth spinal canal 224, the fifth spinal canal 225, and the sixth spinal canal 226 are similar to the structure of the first spinal canal 221. The structures of the second ossification cavity 26, the third ossification cavity 27, and the fourth ossification cavity 28 are similar to the structure of the first ossification cavity 25; In some embodiments, the power supply 22 may be an external power supply, the demonstration model 20 is provided with a transformer, and the transformer is connected to the mains via a power line 30; the power supply 22 may also be a built-in power supply, a battery is provided in the demonstration model 20, and the battery may be powered via the power line 30; In some embodiments, the power mechanism includes a first power unit 231, a second power unit 232 and a third power unit 233. The power mechanism is mainly a small silent water pump. The first button 101 controls the first power unit 231 (first water pump), the second button 102 controls the first power unit 231 (second water pump), and the third button 103 controls the third power unit 233 (third water pump). Only when the first button 101, the second button 102 and the third button 103 are pressed, the first water pump, the second water pump and the third water pump start to operate, and inject the ossification medium into the first ossification cavity 25, the second ossification cavity 26 and the third ossification cavity 27 respectively, so as to avoid injecting too much ossification medium. In some embodiments, the storage chamber 24 is installed in the box body 10, and the storage chamber 24 is detachable, which is convenient for cleaning the storage chamber 24. The box body 10 is provided with a cover body. The cover body is opened to add an ossification medium to the storage chamber 24. The ossification medium can be paint, epoxy resin, liquid silicone, cement slurry, toothpaste, etc.; In this embodiment, the ossification medium is bone mud, and the four stages of bone cement solidification are mixing period (porridge stage), sticky wire period (wire drawing period), agglomeration period (agglomeration period), fixing period (hardening period), mixing period (porridge stage / wet sand period), bone cement powder and liquid are mixed to form an off-white porridge-like state, at this time the viscosity is the lowest and the fluidity is strong. This stage requires sufficient stirring to make the materials evenly mixed, laying the foundation for subsequent reactions. The solidification process of bone mud is a conventional technical means, which will not be repeated here; The first power unit 231, the second power unit 232 and the third power unit 233 can be detachably arranged at the bottom of the storage chamber 24. During the mixing period of the ossification mud, the ossification mud can be injected into the first ossification cavity 25, the second ossification cavity 26 and the third ossification cavity 27 through the first power unit 231, the second power unit 232 and the third power unit 233, and the demonstration begins. The ossification mud can well demonstrate that the ossification material grows, calcifies and ossifies at the same time, but the ossification mud is a little difficult to clean. After the ossification mud is solidified, the ossification mud can be taken out, and the demonstration model 20 can be used next time; In other embodiments, other liquids may replace the ossification mud, and as long as the process of adding the ossification medium to the first ossification cavity 25, the second ossification cavity 26, and the third ossification cavity 27 can be demonstrated, it is within the protection scope of this embodiment; The first ossification cavity 25 is a receiving cavity. The first ossification cavity 25 extends along the first direction (the direction indicated by arrow a in the figure). The ossification medium can be injected into the first ossification cavity 25 like injection molding, diffuse in the first direction (the direction indicated by arrow a in the figure), and then slowly solidify, simulating the longitudinal growth process of the ossified substance; The second ossification cavity 26 is a receiving cavity. The second ossification cavity 26 extends along the second direction (the direction indicated by arrow b in the figure). The ossification medium can be injected into the second ossification cavity 26 like injection molding, diffuse in the second direction (the direction indicated by arrow b in the figure), and then slowly solidify, simulating the transverse growth process of the ossified substance; In this embodiment, the first power unit 231 is connected to the first ossification cavity 25 through the first pipeline 271. The first power unit 231 is used to inject the ossification medium in the storage chamber 24 into the first ossification cavity 25, as Figure 4 shown. The second power unit 232 is connected to the second ossification cavity 26 through the second pipeline 272. The second power unit 232 is used to inject the ossification medium in the storage chamber 24 into the second ossification cavity 26, as Figure 5 shown; In this way, the ossification medium can be injected into the first ossification cavity 25 through the first power unit 231. The ossification medium is slowly injected into the first ossification cavity 25. The ossification medium extends along the extension direction of the first ossification cavity 25. The first ossification cavity 25 extends along the first direction (the direction indicated by arrow a in the figure), that is, longitudinally, simulating the longitudinal growth process of the ossified substance; the ossification medium can be injected into the second ossification cavity 26 through the second power unit 232. The ossification medium is slowly injected into the second ossification cavity 26. The ossification medium extends along the extension direction of the second ossification cavity 26. The second ossification cavity 26 extends along the second direction (the direction indicated by arrow b in the figure), that is, transversely, simulating the transverse growth process of the ossified substance, which can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0042] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a first balloon and a second balloon. The first balloon is arranged in the first ossification cavity 25 and is communicated with the first pipeline 271. The second balloon is arranged in the second ossification cavity 26 and is communicated with the second pipeline 272.

[0043] In this embodiment, the first balloon can be fixed at the end of the first pipeline 271, and the second balloon is fixed at the end of the second pipeline 272. The ossification medium is in liquid form and is injected into the first balloon and the second balloon. The first balloon and the second balloon can expand to demonstrate the pathological process of the ossified substance. The first balloon and the second balloon are preferably colored balloons; Thus, the ossification medium can be injected into the first balloon and the second balloon. The first ossification cavity 25 restricts the change of the first balloon, and the second ossification cavity 26 restricts the change of the second balloon. After the demonstration is completed, the first balloon and the second balloon can be taken out and new balloons can be put on without cleaning the first ossification cavity 25 and the second ossification cavity 26, enabling the demonstration model 20 to be reused and reducing the demonstration cost.

[0044] According to some embodiments of the present application, optionally, the first ossification cavity 25 and the first vertebral body 211 are detachably connected, and the second ossification cavity 26 and the second vertebral body 212 are detachably connected.

[0045] In other embodiments, the first ossification cavity 25 and the second ossification cavity 26 can be used as a plug-in module and can be inserted into the positions of the first spinal canal 221 and the second spinal canal 222 for easy removal. In this way, one end of the first ossification cavity 25 and the first vertebral body 211 are detachably connected, the first ossification cavity 25 can be detached, the used first balloon can be taken out, and then a new first balloon can be replaced, which is convenient for replacing the first balloon; one end of the second ossification cavity 26 and the second vertebral body 212 are detachably connected, the second ossification cavity 26 can be detached, the used second balloon can be taken out, and then a new second balloon can be replaced, which is convenient for replacing the second balloon.

[0046] According to some embodiments of the present application, optionally, the cervical vertebra 21 further includes a third vertebral body 213 and a fourth vertebral body 214 arranged along the first direction (the direction indicated by the arrow a in the figure). A third spinal canal 223 is provided in the third vertebral body 213, and a fourth spinal canal 224 is provided in the fourth vertebral body 214; the demonstration model 20 includes a third ossification cavity 27. The third ossification cavity 27 is provided in the third spinal canal 223 and the fourth spinal canal 224. The third ossification cavity 27 extends along the first direction (the direction indicated by the arrow a in the figure). The third ossification cavity 27 is respectively connected to the third vertebral body 213 and the fourth vertebral body 214. The power mechanism further includes a third power unit 233. The third power unit 233 is communicated with the third ossification cavity 27 through a third pipeline 273. The third power unit 233 is used to inject the ossification medium in the storage chamber 24 into the third ossification cavity 27.

[0047] The third ossification cavity 27 is a relatively long structure and can be communicated with the fourth ossification cavity 28. In this way, the ossification medium can be injected into the third ossification cavity 27 through the third power unit 233, such as Figure 6As shown, the third ossification cavity 27 is also of a preset shape. The ossification medium is slowly injected into the third ossification cavity 27, and the ossification medium extends along the extension direction of the third ossification cavity 27 to simulate the pathological process of the continuous type of ossification of the posterior longitudinal ligament of the cervical vertebra 21; in other embodiments, the cervical vertebra 21 may be provided with a two-layer structure along the third direction (the direction indicated by the arrow c in the figure). The first vertebral body 211 and the second vertebral body 212 are in the first layer, and the first layer can be demonstrated separately. The third vertebral body 213 and the fourth vertebral body 214 are in the second layer, and the second layer can also be demonstrated separately, which can reduce the length of the demonstration model 20 in the first direction (the direction indicated by the arrow a in the figure).

[0048] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a third balloon. The third balloon is disposed in the third ossification cavity 27. The third balloon is communicated with the third pipeline 273. The third ossification cavity 27 is detachably connected to the third vertebral body 213 and the fourth vertebral body 214 respectively.

[0049] The principle of the third balloon is the same as that of the first balloon and the second balloon; the third balloon can be fixed at the end of the third pipeline 273. The ossification medium is in a liquid form and is injected into the third balloon. The third balloon can expand to demonstrate the pathological process of the ossification. The third balloon is preferably a colored balloon; In some embodiments, as Figure 7 shown, the first power unit 231 is connected to the first ossification cavity 25 through the first pipeline 271, the second power unit 232 is connected to the second ossification cavity 26 through the second pipeline 272, and the third power unit 233 is communicated with the third ossification cavity 27 through the third pipeline 273. The first pipeline 271 and the storage chamber 24 are installed in the box body 10. The first pipeline 271, the second pipeline 272, and the third pipeline 273 are also installed in the box body 10 without interfering with the cervical vertebra 21. Preferably, the storage chamber 24, the first pipeline 271, the second pipeline 272, and the third pipeline 273 cannot be seen from the front and are all installed on the back of the box body. The back cover can be opened for easy maintenance; In this way, the ossification medium can be injected into the third balloon. The third ossification cavity 27 restricts the change of the third balloon. After the demonstration is completed, the third ossification cavity 27 can be removed, the third balloon can be taken out, the used third balloon can be taken out, and then a new third balloon can be replaced, which is convenient for replacing the third balloon.

[0050] According to some embodiments of the present application, optionally, the cervical vertebra 21 further includes a fifth vertebral body 215 and a sixth vertebral body 216 arranged along the first direction (the direction indicated by arrow a in the figure). A fifth spinal canal 225 is provided in the fifth vertebral body 215, and a sixth spinal canal 226 is provided in the sixth vertebral body 216; the demonstration model 20 includes a fourth ossification cavity 28, and the fourth ossification cavity 28 is provided in the fifth spinal canal 225 and the sixth spinal canal 226. The fourth ossification cavity 28 extends along the first direction (the direction indicated by arrow a in the figure), and the fourth ossification cavity 28 is respectively connected to the fifth vertebral body 215 and the sixth vertebral body 216, and the fourth ossification cavity 28 is connected to the third ossification cavity 27.

[0051] In this way, the fourth ossification cavity 28 can be communicated with the third ossification cavity 27, so that the ossification medium in the third ossification cavity 27 enters the fourth ossification cavity 28. As Figure 6 shown, it can demonstrate that the ossified matter in the third ossification cavity 27 continues to spread towards the fourth ossification cavity 28 and is connected into a whole, simulating the pathological process of the continuous ossified posterior longitudinal ligament of the cervical vertebra 21 formed by the ossified matter. In other embodiments, the cervical vertebra 21 can be provided with a two-layer structure along the third direction (the direction indicated by arrow c in the figure). The first vertebral body 211 and the second vertebral body 212 are in the first layer, the third vertebral body 213 and the fourth vertebral body 214 are in the second layer, and the fifth vertebral body 215 and the sixth vertebral body 216 can also be in the second layer, in the same layer as the third vertebral body 213 and the fourth vertebral body 214, which can reduce the length of the demonstration model 20 in the first direction (the direction indicated by arrow a in the figure).

[0052] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a valve 29, and the valve 29 is provided between the third ossification cavity 27 and the fourth ossification cavity 28. The valve 29 is used to open or close the channel between the third ossification cavity 27 and the fourth ossification cavity 28.

[0053] The valve 29 is an electronic valve; In this way, by providing a valve 29 between the third ossification cavity 27 and the fourth ossification cavity 28, the channel between the third ossification cavity 27 and the fourth ossification cavity 28 can be opened or closed, so that the third ossification cavity 27 can be demonstrated alone, or the third ossification cavity 27 can be communicated with the fourth ossification cavity 28 to form a longer demonstration ossified matter structure, which is flexibly used. The valve 29 is an electronic valve, and the electronic valve is connected to the power supply 22, and the power supply 22 supplies power to the electronic valve.

[0054] According to some embodiments of the present application, optionally, the ossification medium is bone cement, a stirring assembly 241 is provided in the storage chamber 24, and the power supply 22 is electrically connected to the stirring assembly 241. The stirring assembly 241 is used to stir the ossification medium in the storage chamber 24.

[0055] Thus, at the beginning, the bone cement needs to be mixed with the liquid. It is necessary to fully stir to evenly mix the materials. As long as the bone cement powder and the liquid are added to the storage chamber 24, the stirring assembly 241 stirs the bone cement powder and the liquid, and then it can be injected into the ossification cavity. The stirring assembly 241 facilitates the stirring of the bone cement powder and the liquid. The storage chamber 24 is detachable, which is convenient for replacing and cleaning the storage chamber 24.

[0056] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a first button 101, a second button 102, a first light-emitting member 261, and a second light-emitting member 262. The power supply 22 is electrically connected to the first button 101, the second button 102, the first light-emitting member 261, and the second light-emitting member 262 respectively. The first light-emitting member 261 is disposed opposite to the first ossification cavity 25, and the second light-emitting member 262 is disposed opposite to the second ossification cavity 26. The first button 101 is connected to and controls the first light-emitting member 261 and the first power unit 231, and the second button 102 is connected to and controls the second light-emitting member 262 and the second power unit 232.

[0057] Thus, through the first button 101, the first light-emitting member 261 and the first power unit 231 can be controlled. The first light-emitting member 261 is disposed inside or outside the first ossification cavity 25. The first light-emitting member 261 flashes, indicating that the ossification medium starts to be injected into the first ossification cavity 25, attracting the attention of viewers. Through the second button 102, the second light-emitting member 262 and the second power unit 232 can be controlled. The second light-emitting member 262 is disposed inside or outside the second ossification cavity 26. The second light-emitting member 262 flashes, indicating that the ossification medium starts to be injected into the second ossification cavity 26, attracting the attention of viewers. A third button 103 and a third light-emitting member 263 can also be provided. The third button 103 controls the third power unit 233, and the third light-emitting member 263 is disposed inside or outside the third ossification cavity 27. A fourth button 104 can also be provided. The fourth button 104 controls the valve 29 between the third ossification cavity 27 and the fourth ossification cavity 28.

[0058] In some embodiments, as Figure 8 shown, the demonstration model 20 includes a controller. The first button 101, the second button 102, the third button 103, and the fourth button 104 are respectively connected to the controller. The power supply is connected to the controller. The controller is connected to the first light-emitting member 261, the second light-emitting member 262, the third light-emitting member 263, the fourth light-emitting member 264, the first power unit 231, the second power unit 232, the third power unit 233, and the valve 29. The first button 101, the second button 102, the third button 103, and the fourth button 104 are on the side of the box body 10. The first light-emitting element 261 corresponds to the first ossification cavity 25, the second light-emitting element 262 corresponds to the second ossification cavity 26, the third light-emitting element 263 corresponds to the third ossification cavity 27, and the fourth light-emitting element 264 corresponds to the fourth ossification cavity 28; Press the first button 101, the first power unit 231 pumps the ossification medium into the first ossification cavity 25. At the same time, the first light-emitting element 261 starts to blink, indicating that the ossification medium starts to be injected into the first ossification cavity 25; Press the second button 102, the second power unit 232 pumps the ossification medium into the second ossification cavity 26. At the same time, the second light-emitting element 262 starts to blink, indicating that the ossification medium starts to be injected into the second ossification cavity 26; Press the third button 103, the third power unit 233 pumps the ossification medium into the third ossification cavity 27. At the same time, the third light-emitting element 263 starts to blink, indicating that the ossification medium starts to be injected into the third ossification cavity 27; Press the fourth button 104 to open the valve 29. At the same time, the fourth light-emitting element 264 starts to blink, indicating that the fourth ossification cavity 28 is connected to the third ossification cavity 27.

[0059] This embodiment also relates to a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, including the demonstration device for ossification of the posterior longitudinal ligament of the cervical spine as described in any one of the above, and includes the following steps: Add the ossification medium to the storage chamber 24; Turn on the first power unit 231 and the first light-emitting element 261. The first light-emitting element 261 blinks, and the first power unit 231 injects the ossification medium into the first ossification cavity 25 through the first pipeline 271. Observe the flow direction of the ossification medium in the first ossification cavity 25 and the state change of the ossification medium; Turn on the second power unit 232 and the second light-emitting element 262. The second light-emitting element 262 blinks, and the second power unit 232 injects the ossification medium into the second ossification cavity 26 through the second pipeline 272. Observe the flow direction of the ossification medium in the second ossification cavity 26 and the state change of the ossification medium; Open the first ossification cavity 25 and / or the second ossification cavity 26, and take out the ossification medium.

[0060] Different from the prior art, the technical solution of the present application can inject an ossification medium into the first ossification cavity 25 through the first power unit 231. The ossification medium is slowly injected into the first ossification cavity 25 and extends along the extension direction of the first ossification cavity 25. The first ossification cavity 25 is of a preset shape and extends along the first direction (the direction indicated by the arrow a in the figure), that is, longitudinally, simulating the longitudinal growth process of the ossified substance; the ossification medium can be injected into the second ossification cavity 26 through the second power unit 232. The ossification medium is slowly injected into the second ossification cavity 26 and extends along the extension direction of the second ossification cavity 26. The second ossification cavity 26 is of a preset shape and extends along the second direction (the direction indicated by the arrow b in the figure), that is, transversely, simulating the transverse growth process of the ossified substance, and can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0061] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solutions generated by equivalent structure or equivalent process substitution or modification using the content recorded in the text and drawings of the specification of the present application based on the essential concept of the present application, as well as the direct or indirect implementation of the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, characterized in that: It includes a box body and a demonstration model arranged in the box body; The demonstration model includes a cervical spine, a power source, a power mechanism, a storage chamber, and more than two ossification cavities. The cervical spine includes a first vertebral body and a second vertebral body arranged along a first direction. A first spinal canal is arranged in the first vertebral body, and a second spinal canal is arranged in the second vertebral body. The demonstration model includes a first ossification cavity and a second ossification cavity. The first ossification cavity and the second ossification cavity are of a preset shape. The first ossification cavity is arranged in the first spinal canal, and the first ossification cavity extends along a first direction. The second ossification cavity is arranged in the second spinal canal, and the second ossification cavity extends along a second direction. The storage chamber is used to store ossification medium, the power source is electrically connected to the power mechanism, the power mechanism is arranged in the storage chamber, the power mechanism includes a first power unit and a second power unit, the first power unit is connected to the first ossification cavity through a first pipeline, the first power unit is used to inject the ossification medium in the storage chamber into the first ossification cavity, the second power unit is connected to the second ossification cavity through a second pipeline, and the second power unit is used to inject the ossification medium in the storage chamber into the second ossification cavity.

2. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 1, characterized in that: The demonstration model further includes a first balloon and a second balloon. The first balloon is disposed in the first ossification cavity and is connected to the first pipe. The second balloon is disposed in the second ossification cavity and is connected to the second pipe.

3. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 2, characterized in that: The first ossification cavity is detachably connected to the first vertebral body, and the second ossification cavity is detachably connected to the second vertebral body.

4. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 1, characterized in that: The cervical vertebra further comprises a third vertebra and a fourth vertebra arranged along a first direction, a third vertebral canal is arranged in the third vertebral body, and a fourth vertebral canal is arranged in the fourth vertebral body; The demonstration model includes a third ossification cavity, which is arranged in the third vertebral canal and the fourth vertebral canal, and the third ossification cavity extends along a first direction. The third ossification cavity is connected to the third vertebral body and the fourth vertebral body respectively. The power mechanism also includes a third power unit, which is connected to the third ossification cavity through a third pipeline, and the third power unit is used to inject the ossification medium in the storage chamber into the third ossification cavity.

5. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 4, characterized in that: The demonstration model further includes a third balloon, which is disposed in the third ossification cavity and communicates with the third pipe. The third ossification cavity is detachably connected to the third vertebral body and the fourth vertebral body, respectively.

6. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 5, characterized in that: The cervical vertebra further comprises a fifth vertebra and a sixth vertebra arranged in a first direction, a fifth vertebral canal is arranged in the fifth vertebral body, and a sixth vertebral canal is arranged in the sixth vertebral body; The demonstration model includes a fourth ossification cavity, which is arranged in the fifth vertebral canal and the sixth vertebral canal, extends along the first direction, is connected to the fifth vertebral body and the sixth vertebral body respectively, and is connected to the third ossification cavity.

7. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 6, characterized in that: The demonstration model further includes a valve, which is disposed between the third ossification cavity and the fourth ossification cavity, and is used to open or close a passage between the third ossification cavity and the fourth ossification cavity.

8. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to any one of claims 1 to 7, characterized in that: The ossification medium is bone cement. A stirring component is arranged in the storage chamber. The power supply is electrically connected to the stirring component. The stirring component is used to stir the ossification medium in the storage chamber.

9. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to any one of claims 1 to 7, characterized in that: The demonstration model also includes a first button, a second button, a first light-emitting member, and a second light-emitting member. The power supply is electrically connected to the first button, the second button, the first light-emitting member, and the second light-emitting member, respectively. The first light-emitting member is arranged relative to the first ossification cavity, and the second light-emitting member is arranged relative to the second ossification cavity. The first button is connected to and controls the first light-emitting member and the first power unit, and the second button is connected to and controls the second light-emitting member and the second power unit.

10. A method for demonstrating ossification of the posterior longitudinal ligament of the cervical spine, characterized in that: A demonstration device for ossification of the posterior longitudinal ligament of the cervical spine as claimed in any one of claims 1 to 9, comprising the following steps: Add ossification medium to the reservoir; Turn on the first power unit and the first light-emitting element, the first light-emitting element flashes, the first power unit injects the ossification medium into the first ossification cavity through the first pipe, and observes the flow direction of the ossification medium in the first ossification cavity and the state change of the ossification medium; Turn on the second power unit and the second light-emitting element, the second light-emitting element flashes, and the second power unit injects the ossification medium into the second ossification cavity through the second pipe, and observe the flow direction of the ossification medium in the second ossification cavity and the state change of the ossification medium; The first ossification cavity and / or the second ossification cavity is opened, and the ossification medium is taken out.

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