Demonstration device and method for ossification of the posterior longitudinal ligament of the cervical spine

Abstract

The present invention relates to a demonstration device and method for ossification of the posterior longitudinal ligament of the cervical spine, comprising a housing and a demonstration model disposed within the housing; the demonstration model comprises a cervical spine, a power source, a power mechanism, a storage chamber, and two or more ossification cavities, wherein a first ossification cavity is disposed within the first spinal canal and extends in a first direction, and a second ossification cavity is disposed within the second spinal canal and extends in a second direction; a first power unit is connected to the first ossification cavity via a first pipe and is used to inject an ossification medium from the storage chamber into the first ossification cavity; a second power unit is connected to the second ossification cavity via a second pipe and is used to inject an ossification medium from the storage chamber into the second ossification cavity. Unlike existing technologies, the present invention can realistically demonstrate the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching demonstration, and in particular 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 (OPLL) is a common spinal disease in which the posterior longitudinal ligament behind the cervical vertebral body undergoes ossification, leading to spinal canal stenosis, compression of the spinal cord and nerve roots, and a series of clinical symptoms.

[0003] Ossification of the posterior longitudinal ligament of the cervical spine is a complex and continuous process from early proliferation, punctate calcification, cartilage to complete ossification. The ossification material will grow longitudinally and transversely, and subsequently form segmental, continuous, and mixed types of ossification of the posterior longitudinal ligament of the cervical spine.

[0004] The prior art has the following problems:

[0005] 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 the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected in the teaching process.

[0006] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the Invention

[0007] In view of the above problems, the present application provides a demonstration device and demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, which is used to solve the technical problem that there is no demonstration model for the pathological process of ossification of the posterior longitudinal ligament of the cervical spine in the existing teaching process, and the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected in the teaching process.

[0008] To achieve the above-mentioned object, in a first aspect, the present invention provides a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, comprising a box and a demonstration model disposed in the box;

[0009] The demonstration model includes a cervical spine, a power supply, a power mechanism, a storage chamber, and two or more 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 provided within the first vertebral body, and a second spinal canal is provided within 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 preset shapes. The first ossification cavity is provided within the first spinal canal and extends along a first direction. The second ossification cavity is provided within the second spinal canal and extends along a second direction.

[0010] The storage chamber is used to store ossification medium. The power source is electrically connected to the power mechanism. The power mechanism is disposed 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 via a first pipe. 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 via a second pipe. The second power unit is used to inject the ossification medium in the storage chamber into the second ossification cavity.

[0011] Different from the prior art, the above technical solution includes a demonstration model including a cervical vertebra, a power source, a power mechanism, a storage chamber and two or more ossification cavities. 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 ossification medium. The first power unit is connected to the first ossification cavity through a first pipe. 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 pipe. The second power unit is used to inject the storage medium into the first ossification cavity. The ossification medium in the chamber is injected into the second ossification cavity; in this way, the ossification medium can be injected into the first ossification cavity by the first power unit, and the ossification medium is slowly injected into the first ossification cavity, and the ossification medium extends along the extension direction of the first ossification cavity, and the first ossification cavity extends along the first direction in a preset shape, that is, longitudinally, simulating the longitudinal growth process of the ossification; the ossification medium can be injected into the second ossification cavity by the second power unit, and the ossification medium is slowly injected into the second ossification cavity, and the ossification medium extends along the extension direction of the second ossification cavity, and the second ossification cavity extends along the second direction in a preset shape, that is, transversely, simulating the transverse growth process of the ossification, which can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0012] As an embodiment of the present invention, the demonstration model further includes a first balloon and a second balloon, wherein the first balloon is disposed in the first ossification cavity and is connected to the first pipe, and the second balloon is disposed in the second ossification cavity and is connected to the second pipe.

[0013] In this way, the ossification medium can be injected into the first balloon and the second balloon. The first ossification cavity limits the changes of the first balloon, and the second ossification cavity limits the changes of the second balloon. After the demonstration is completed, the first balloon and the second balloon can be removed and replaced with new balloons. There is no need to clean the first ossification cavity and the second ossification cavity, so that the demonstration model can be reused, reducing the demonstration cost.

[0014] 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.

[0015] In this way, one end of the first ossification cavity is detachably connected to the first vertebral body, and the first ossification cavity can be removed, 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, and the second ossification cavity can be removed, 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.

[0016] As an embodiment of the present invention, the cervical vertebra further comprises a third vertebra and a fourth vertebra arranged along the first direction, a third vertebral canal is provided in the third vertebral body, and a fourth vertebral canal is provided in the fourth vertebral body;

[0017] The demonstration model includes a third ossification cavity, which is arranged in the third vertebral canal and the fourth vertebral canal, and 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 pipe, and the third power unit is used to inject the ossification medium in the storage chamber into the third ossification cavity.

[0018] In this way, the ossification medium can be injected into the third ossification cavity through the third power unit. The third ossification cavity also has 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 ossification forming a continuous type of ossification of the posterior longitudinal ligament of the cervical spine; in other embodiments, the cervical spine can be provided with a two-layer structure along the third direction, with the first vertebra and the second vertebra in the first layer, and the first layer can be demonstrated alone, and the third vertebra and the fourth vertebra 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.

[0019] As an embodiment of the present invention, 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 vertebra and the fourth vertebra, respectively.

[0020] In this way, the ossification medium can be injected into the third balloon, and the third ossification cavity limits the changes of the third balloon. After the demonstration is completed, the third ossification cavity can be removed, the third balloon can be taken out, the used third balloon can be taken out, and a new third balloon can be replaced, which is convenient for replacing the third balloon.

[0021] As an embodiment of the present invention, the cervical vertebra further comprises a fifth vertebra and a sixth vertebra arranged along the first direction, the fifth vertebra is provided with a fifth vertebral canal, and the sixth vertebra is provided with a sixth vertebral canal;

[0022] 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.

[0023] In this way, the fourth ossification cavity can be connected to the third ossification cavity, allowing the ossification medium of the third ossification cavity to enter the fourth ossification cavity, and the ossification material of the third ossification cavity can be demonstrated to continue to diffuse toward the fourth ossification cavity and connect into a whole, simulating the pathological process in which the ossification material forms a continuous type of ossification material of the posterior longitudinal ligament of the cervical spine; in other embodiments, the cervical vertebra can be provided with a two-layer structure along the third direction, with the first vertebra and the second vertebra in the first layer, the third vertebra and the fourth vertebra in the second layer, and the fifth vertebra and the sixth vertebra can also be in the second layer, on the same layer as the third vertebra and the fourth vertebra, which can reduce the length of the demonstration model in the first direction.

[0024] As an embodiment of the present invention, 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 the passage between the third ossification cavity and the fourth ossification cavity.

[0025] 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 can be connected to the fourth ossification cavity to form a longer demonstration ossification structure, which can be used flexibly. The valve is an electronic valve, which is connected to a power supply, and the power supply supplies power to the electronic valve.

[0026] As an embodiment of the present invention, the ossification medium is bone cement, a stirring assembly is provided in the storage chamber, the power supply is electrically connected to the stirring assembly, and the stirring assembly is used to stir the ossification medium in the storage chamber.

[0027] In this way, at the beginning of bone cement, bone cement powder needs to be mixed with liquid, and the materials need to be fully stirred to make them evenly mixed. As long as the bone cement powder and liquid are added to the storage chamber, the bone cement powder and liquid are stirred by the stirring component and then 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.

[0028] As an embodiment of the present invention, the demonstration model also includes a first button, a second button, a first light-emitting component and a second light-emitting component. The power supply is electrically connected to the first button, the second button, the first light-emitting component and the second light-emitting component, respectively. The first light-emitting component is arranged relative to the first ossification cavity, and the second light-emitting component is arranged relative to the second ossification cavity. The first button is connected to and controls the first light-emitting component and the first power unit, and the second button is connected to and controls the second light-emitting component and the second power unit.

[0029] In this way, the first button can be used to control the first light-emitting component and the first power unit. The first light-emitting component is arranged inside or outside the first ossification cavity. The first light-emitting component flashes, indicating that the ossification medium has started to be injected into the first ossification cavity, thereby attracting the viewer's attention. The second button can be used to control the second light-emitting component and the second power unit. The second light-emitting component is arranged inside or outside the second ossification cavity. The second light-emitting component flashes, indicating that the ossification medium has started to be injected into the second ossification cavity, thereby attracting the viewer's attention. A third button and a third light-emitting component can also be provided. The third button controls the third power unit. The third light-emitting component is arranged inside or outside the third ossification cavity. A fourth button can also be provided. The fourth button controls the valve between the third and fourth ossification cavities.

[0030] To achieve the above objectives, in a second aspect, the inventors provide a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, comprising a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine as described in any one of the above, comprising the following steps:

[0031] Add ossification medium to the reservoir;

[0032] Turn on the first power unit and the first light-emitting element, the first light-emitting element flashes, and the first power unit injects the ossification medium into the first ossification cavity through the first channel, and observe the flow direction of the ossification medium in the first ossification cavity and the state change of the ossification medium;

[0033] Turn on the second power unit and the second light-emitting element, and the second light-emitting element flashes. The second power unit injects the ossification medium into the second ossification cavity through the second pipe, and observes the flow direction of the ossification medium in the second ossification cavity and the state change of the ossification medium;

[0034] The first ossification cavity and / or the second ossification cavity is opened, and the ossification medium is removed.

[0035] Different from the existing technology, the technical solution of the present application is that an ossification medium can be injected into the first ossification cavity through a first power unit, and the ossification medium is slowly injected into the first ossification cavity. The ossification medium extends along the extension direction of the first ossification cavity. The first ossification cavity extends along the first direction in a preset shape, that is, longitudinally, simulating the longitudinal growth process of the ossification; the ossification medium can be injected into the second ossification cavity through a second power unit, and the ossification medium is slowly injected into the second ossification cavity. The ossification medium extends along the extension direction of the second ossification cavity. The second ossification cavity extends along the second direction in a preset shape, that is, transversely, simulating the transverse growth process of the ossification, which can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0036] The above-mentioned records related to the content of the invention are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of this application and other related contents, and are not to be considered as limiting this application.

[0038] In the drawings of the specification:

[0039] Figure 1 This is a schematic structural diagram of a box according to an embodiment of the present application;

[0040] Figure 2 This is a schematic diagram of the structure of a demonstration model of an embodiment of the present application;

[0041] Figure 3 A schematic diagram of a first vertebral body according to an embodiment of the present application;

[0042] Figure 4 This is a diagram showing the usage status of the first ossification cavity during the use of this application;

[0043] Figure 5 This is a diagram showing the second ossification cavity in use during the application process;

[0044] Figure 6 This is a schematic diagram of the structure of the third ossification cavity and the fourth ossification cavity during use of this application;

[0045] Figure 7 This is a system block diagram between the storage chamber and the ossification chamber according to one embodiment of the present application;

[0046] Figure 8This is the circuit schematic diagram of the demonstration device for ossification of the posterior longitudinal ligament of the cervical spine in this application.

[0047] The reference numerals in the above drawings are described as follows:

[0048] a. first direction, b. second direction, c. third direction;

[0049] 10. Box, 101. First button, 102. Second button, 103. Third button, 104. Fourth button;

[0050] 20. Demonstration model, 21. Cervical vertebra,

[0051] 211, first vertebra, 212, second vertebra, 213, third vertebra, 214, fourth vertebra, 215, fifth vertebra, 216, sixth vertebra,

[0052] 221. First vertebral canal, 222. Second vertebral canal, 223. Third vertebral canal, 224. Fourth vertebral canal, 225. Fifth vertebral canal, 226. Sixth vertebral canal,

[0053] 22. Power supply, 231. First power unit, 232. Second power unit, 233. Third power unit,

[0054] 24. Storage chamber, 241. Stirring assembly, 25. First ossification chamber, 26. Second ossification chamber, 27. Third ossification chamber, 28. Fourth ossification chamber, 29. Valve,

[0055] 261, first light emitting element, 262, second light emitting element, 263, third light emitting element, 264, fourth light emitting element,

[0056] 271, first pipeline, 272, second pipeline, 273, third pipeline,

[0057] 30. Power cord. DETAILED DESCRIPTION

[0058] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0059] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places 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 are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0060] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0061] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0062] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0063] Without further limitations, in this application, the words "include", "comprise", "have" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product that includes the elements, so that the process, method or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method or product.

[0064] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0065] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0066] 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 the pathological process of ossification of the posterior longitudinal ligament of the cervical spine cannot be truly reflected in the teaching process.

[0067] In view of this, the embodiment of the present application provides a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, including a box 10 and a demonstration model 20 arranged in the box 10; the demonstration model 20 includes a cervical vertebra 21, a power supply 22, a power mechanism, a storage chamber 24 and two or more ossification cavities, the cervical vertebra 21 includes a first vertebra 211 and a second vertebra 212 arranged along a first direction (as 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 arranged in the first spinal canal 221, the first ossification cavity 25 is arranged along the first direction (as indicated by arrow a in the figure), and the second ossification cavity 26 is arranged along the first direction (as indicated by arrow a in the figure). a) extending in the direction indicated by arrow a in the figure; a second ossification cavity 26 is disposed within the second vertebral canal 222 and extends in a second direction (in 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 a power mechanism, which is disposed within the storage chamber 24; a first power unit 231 is connected to the first ossification cavity 25 via a first conduit 271 and is used to inject 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 via a second conduit 272 and is used to inject 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 by 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 has a preset shape and extends along the first direction (the direction indicated by arrow a in the figure), that is, longitudinally, simulating the longitudinal growth process of the ossification. The ossification medium can be injected into the second ossification cavity 26 by 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 has a preset shape and extends along the second direction (the direction indicated by arrow b in the figure), that is, transversely, simulating the transverse growth process of the ossification, which can realistically reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0068] According to some embodiments of this application, please refer to Figures 1 to 8The present embodiment relates to a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine, comprising a housing 10 and a demonstration model 20 disposed in the housing 10; the demonstration model 20 comprises a cervical vertebra 21, a power source 22, a power mechanism, a storage chamber 24, and two or more ossification cavities, the cervical vertebra 21 comprising a first vertebral body 211 and a second vertebral body 212 arranged along a first direction (as indicated by arrow a in the figure), a first spinal canal 221 being disposed in the first vertebral body 211, and a second spinal canal 222 being disposed in the second vertebral body 212, the demonstration model 20 comprising a first ossification cavity 25 and a second ossification cavity 26, the first ossification cavity 25 and the second ossification cavity 26 being of a preset shape, the first ossification cavity 25 being disposed in the first spinal canal 221, the first ossification cavity 25 being arranged along a first direction (as indicated by arrow a in the figure), The second ossification cavity 26 is provided in the second vertebral canal 222 and extends along the 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 provided in the storage chamber 24, and 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 via a first pipe 271, and 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 via a second pipe 272, and the second power unit 232 is used to inject the ossification medium in the storage chamber 24 into the second ossification cavity 26.

[0069] In some embodiments, the structure of the cervical vertebra 21 is as follows Figure 2 As shown, taking the first vertebral body 211 as an example, the first vertebral body 211 is hollow, the first vertebral canal 221 is inside the first vertebral body 211, the ossification grows inside the first vertebral canal 221, the first ossification cavity 25 is inside the first vertebral canal 221, and the demonstration model 20 of this application demonstrates Figure 2 The structure of the AA section of the middle cervical vertebra 21, the first spinal canal 221 is a groove, the first ossification cavity 25 is placed in the first spinal canal 221, and the first ossification cavity 25 is a receiving groove structure;

[0070] The structures of the second vertebral canal 222 , the third vertebral canal 223 , the fourth vertebral canal 224 , the fifth vertebral canal 225 , and the sixth vertebral canal 226 are similar to those of the first vertebral canal 221 , and the structures of the second ossification cavity 26 , the third ossification cavity 27 , and the fourth ossification cavity 28 are similar to those of the first ossification cavity 25 ;

[0071] The first vertebral body 211, the second vertebral body 212, the third vertebral body 213, the fourth vertebral body 214, the fifth vertebral body 215, and the sixth vertebral body 216 are connected in sequence, and the first vertebral canal 221, the second vertebral canal 222, the third vertebral canal 223, the fourth vertebral canal 224, the fifth vertebral canal 225, and the sixth vertebral canal 226 are connected in sequence to form an integral vertebral canal;

[0072] 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 cord 30; the power supply 22 may also be a built-in power supply, the demonstration model 20 is provided with a battery, and the battery can be powered by the power cord 30;

[0073] 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, to avoid injecting too much ossification medium.

[0074] In some embodiments, the storage chamber 24 is installed in the box body 10 and is detachable for easy cleaning. The box body 10 is provided with a cover. By opening the cover, an ossification medium can be added to the storage chamber 24. The ossification medium can be paint, epoxy resin, liquid silicone, cement slurry, toothpaste, etc.

[0075] In this embodiment, the ossification medium is bone cement. The four stages of bone cement solidification are mixing (porridge-like stage), sticking (stringing stage), clumping (clumping stage), and fixing (hardening stage). During the mixing (porridge-like stage / wet sand stage), the bone cement powder and liquid form an off-white porridge-like state, with the lowest viscosity and high fluidity. This stage requires thorough stirring to ensure uniform mixing of the materials, laying the foundation for subsequent reactions. The solidification process of bone cement is a conventional technical method and will not be repeated here.

[0076] The first power unit 231, the second power unit 232, and the third power unit 233 are detachably mounted 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 to start the demonstration. The ossification mud can well demonstrate that the ossification material grows, calcifies, and ossifies. However, the ossification mud is a little difficult to clean. After the ossification mud solidifies, it can be taken out and the demonstration model 20 can be used next time.

[0077] In other embodiments, other liquids may be used instead of the ossification mud. 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 scope of protection of this embodiment.

[0078] The first ossification cavity 25 is a receiving cavity. The first ossification cavity 25 extends along a first direction (indicated by arrow a in the figure). The ossification medium can be injected into the first ossification cavity 25 like injection molding, diffuses in the first direction (indicated by arrow a in the figure), and then slowly solidifies, simulating the longitudinal growth process of the ossification material.

[0079] The second ossification cavity 26 is a receiving cavity. The second ossification cavity 26 extends along the second direction (the direction indicated by the arrow b in the figure). The ossification medium can be injected into the second ossification cavity 26 like injection molding, diffuses in the second direction (the direction indicated by the arrow b in the figure), and then slowly solidifies, simulating the lateral growth process of the ossification.

[0080] In this embodiment, the first power unit 231 is connected to the first ossification cavity 25 through the first pipe 271. The first power unit 231 is used to inject the ossification medium in the storage chamber 24 into the first ossification cavity 25. Figure 4 As shown, the second power unit 232 is connected to the second ossification cavity 26 through the second pipe 272. The second power unit 232 is used to inject the ossification medium in the storage chamber 24 into the second ossification cavity 26. Figure 5 As shown;

[0081] In this way, the ossification medium can be injected into the first ossification cavity 25 by the first power unit 231, and 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 has a preset shape and extends along the first direction (the direction indicated by the arrow a in the figure), that is, longitudinal extension, simulating the longitudinal growth process of the ossification. The ossification medium can be injected into the second ossification cavity 26 by the second power unit 232, and 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 has a preset shape and extends along the second direction (the direction indicated by the arrow b in the figure), that is, transverse extension, simulating the transverse growth process of the ossification, which can truly reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0082] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a first balloon and a second balloon, wherein the first balloon is disposed in the first ossification cavity 25 and is connected to the first tube 271 , and the second balloon is disposed in the second ossification cavity 26 and is connected to the second tube 272 .

[0083] In this embodiment, the first balloon can be fixed to the end of the first tube 271, and the second balloon can be fixed to the end of the second tube 272. The ossification medium is in liquid form and is injected into the first and second balloons. The first and second balloons can expand to demonstrate the ossification process. The first and second balloons are preferably colored balloons.

[0084] In this way, the ossification medium can be injected into the first balloon and the second balloon. The first ossification cavity 25 limits the changes of the first balloon, and the second ossification cavity 26 limits the changes of the second balloon. After the demonstration is completed, the first balloon and the second balloon can be removed and replaced with new balloons. There is no need to clean the first ossification cavity 25 and the second ossification cavity 26, so that the demonstration model 20 can be reused, reducing the demonstration cost.

[0085] 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.

[0086] In other embodiments, the first ossification cavity 25 and the second ossification cavity 26 may serve as a plug-in module that can be inserted into the first vertebral canal 221 and the second vertebral canal 222 for easy removal;

[0087] In this way, one end of the first ossification cavity 25 is detachably connected to the first vertebral body 211, and the first ossification cavity 25 can be removed, 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 is detachably connected to the second vertebral body 212, and the second ossification cavity 26 can be removed, 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.

[0088] According to some embodiments of the present application, optionally, the cervical vertebra 21 further includes a third vertebra 213 and a fourth vertebra 214 arranged along a first direction (in the direction indicated by arrow a in the figure), a third vertebral canal 223 is provided in the third vertebral body 213, and a fourth vertebral 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 vertebral canal 223 and the fourth vertebral canal 224, the third ossification cavity 27 extends along the first direction (in the direction indicated by arrow a in the figure), the third ossification cavity 27 is connected to the third vertebral body 213 and the fourth vertebral body 214, respectively, the power mechanism further includes a third power unit 233, the third power unit 233 is connected to the third ossification cavity 27 through a third pipe 273, and the third power unit 233 is used to inject the ossification medium in the storage chamber 24 into the third ossification cavity 27.

[0089] The third ossification cavity 27 is a relatively long structure and can be connected to the fourth ossification cavity 28;

[0090] In this way, the ossification medium can be injected into the third ossification cavity 27 through the third power unit 233. Figure 6 As 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, simulating the pathological process of the ossification forming a continuous type of ossification of the posterior longitudinal ligament of the cervical vertebra 21. In other embodiments, the cervical vertebra 21 can be provided with a two-layer structure along the third direction (the direction indicated by the arrow c in the figure), with the first vertebral body 211 and the second vertebral body 212 in the first layer, and the first layer can be demonstrated alone, and the third vertebral body 213 and the fourth vertebral body 214 in the second layer, and the second layer can also be demonstrated alone, which can reduce the length of the demonstration model 20 in the first direction (the direction indicated by the arrow a in the figure).

[0091] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a third balloon, which is disposed in the third ossification cavity 27 and is connected to the third pipe 273 . The third ossification cavity 27 is detachably connected to the third vertebra 213 and the fourth vertebra 214 , respectively.

[0092] The principle of the third balloon is the same as that of the first and second balloons. The third balloon can be fixed to the end of the third tube 273. The ossification medium is in liquid form. When injected into the third balloon, the third balloon can expand to demonstrate the ossification process. The third balloon is preferably a colored balloon.

[0093] In some embodiments, as Figure 7 As shown, the first power unit 231 is connected to the first ossification cavity 25 through the first pipe 271, the second power unit 232 is connected to the second ossification cavity 26 through the second pipe 272, and the third power unit 233 is connected to the third ossification cavity 27 through the third pipe 273. The first pipe 271 and the storage chamber 24 are installed in the box body 10. The first pipe 271, the second pipe 272, and the third pipe 273 are also installed in the box body 10 so as not to interfere with the cervical vertebra 21. It is best that the storage chamber 24, the first pipe 271, the second pipe 272, and the third pipe 273 are not visible from the front and are all installed on the back of the box body. The back cover can be opened for easy maintenance.

[0094] In this way, the ossification medium can be injected into the third balloon, and the third ossification cavity 27 limits the changes 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 a new third balloon can be replaced, which is convenient for replacing the third balloon.

[0095] According to some embodiments of the present application, optionally, the cervical vertebra 21 also includes a fifth vertebra 215 and a sixth vertebra 216 arranged along a first direction (as indicated by arrow a in the figure), a fifth vertebral canal 225 is provided in the fifth vertebral body 215, and a sixth vertebral canal 226 is provided in the sixth vertebral body 216; the demonstration model 20 includes a fourth ossification cavity 28, the fourth ossification cavity 28 is provided in the fifth vertebral canal 225 and the sixth vertebral canal 226, and the fourth ossification cavity 28 extends along the first direction (as indicated by arrow a in the figure), and the fourth ossification cavity 28 is connected to the fifth vertebral body 215 and the sixth vertebral body 216, respectively, and the fourth ossification cavity 28 is connected to the third ossification cavity 27.

[0096] In this way, the fourth ossification cavity 28 can be connected to the third ossification cavity 27, and the ossification medium in the third ossification cavity 27 can enter the fourth ossification cavity 28. Figure 6 As shown, it can be demonstrated that the ossification of the third ossification cavity 27 continues to spread toward the fourth ossification cavity 28 and connects into a whole, simulating the pathological process of the ossification forming a continuous type of ossification of the posterior longitudinal ligament of the cervical vertebra 21;

[0097] In other embodiments, the cervical vertebra 21 can be provided with a two-layer structure along the third direction (as indicated by arrow c in the figure), with the first vertebra 211 and the second vertebra 212 being in the first layer, the third vertebra 213 and the fourth vertebra 214 being in the second layer, and the fifth vertebra 215 and the sixth vertebra 216 can also be in the second layer, on the same layer as the third vertebra 213 and the fourth vertebra 214, which can reduce the length of the demonstration model 20 in the first direction (as indicated by arrow a in the figure).

[0098] According to some embodiments of the present application, optionally, the demonstration model 20 further includes a valve 29 , which is disposed between the third ossification cavity 27 and the fourth ossification cavity 28 . The valve 29 is used to open or close the passage between the third ossification cavity 27 and the fourth ossification cavity 28 .

[0099] Valve 29 is an electronic valve;

[0100] In this way, by providing a valve 29 between the third ossification cavity 27 and the fourth ossification cavity 28, the passage 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 and the fourth ossification cavity 28 can be connected to form a longer demonstration ossification structure, which can be used flexibly. The valve 29 is an electronic valve, which is connected to the power supply 22, and the power supply 22 supplies power to the electronic valve.

[0101] 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 , the power supply 22 is electrically connected to the stirring assembly 241 , and the stirring assembly 241 is used to stir the ossification medium in the storage chamber 24 .

[0102] In this way, at the beginning of bone cement, the bone cement powder needs to be mixed with the liquid, and the materials need to be fully stirred to make them evenly mixed. As long as the bone cement powder and liquid are added to the storage chamber 24, the bone cement powder and liquid are stirred by the stirring component 241, and then they can be injected into the ossification cavity. The stirring component 241 is convenient for stirring the bone cement powder and liquid. The storage chamber 24 is detachable, which is convenient for replacing and cleaning the storage chamber 24.

[0103] 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 component 261, and a second light-emitting component 262. The power supply 22 is electrically connected to the first button 101, the second button 102, the first light-emitting component 261, and the second light-emitting component 262, respectively. The first light-emitting component 261 is arranged relative to the first ossification cavity 25, and the second light-emitting component 262 is arranged relative to the second ossification cavity 26. The first button 101 is connected to and controls the first light-emitting component 261 and the first power unit 231, and the second button 102 is connected to and controls the second light-emitting component 262 and the second power unit 232.

[0104] In this way, the first light-emitting member 261 and the first power unit 231 can be controlled by the first button 101. The first light-emitting member 261 is arranged inside or outside the first ossification cavity 25. The first light-emitting member 261 flashes, indicating that the ossification medium has started to be injected into the first ossification cavity 25, thereby attracting the viewer's attention. The second light-emitting member 262 and the second power unit 232 can be controlled by the second button 102. The second light-emitting member 262 is arranged inside or outside the second ossification cavity 26. The second light-emitting member 262 flashes, indicating that the ossification medium has started to be injected into the second ossification cavity 26, thereby attracting the viewer's attention. 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. The third light-emitting member 263 is arranged 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.

[0105] In some embodiments, as Figure 8 As shown, the demonstration model 20 includes a controller, a first button 101, a second button 102, a third button 103, and a fourth button 104 are respectively connected to the controller, a power source is connected to the controller, and 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;

[0106] The first button 101 , the second button 102 , the third button 103 and the fourth button 104 are on the side of the box 10 ;

[0107] The first light-emitting member 261 is provided corresponding to the first ossification cavity 25 , the second light-emitting member 262 is provided corresponding to the second ossification cavity 26 , the third light-emitting member 263 is provided corresponding to the third ossification cavity 27 , and the fourth light-emitting member 264 is provided corresponding to the fourth ossification cavity 28 ;

[0108] When the first button 101 is pressed, 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 flashing, indicating that the ossification medium starts to be injected into the first ossification cavity 25 .

[0109] When the second button 102 is pressed, 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 flashing, indicating that the ossification medium starts to be injected into the second ossification cavity 26 .

[0110] Press the third button 103 , and 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 flashing, indicating that the ossification medium starts to be injected into the third ossification cavity 27 .

[0111] The fourth button 104 is pressed to open the valve 29 , and at the same time, the fourth light-emitting element 264 starts to flash, indicating that the fourth ossification cavity 28 is connected to the third ossification cavity 27 .

[0112] This embodiment further relates to a demonstration method for ossification of the posterior longitudinal ligament of the cervical spine, including a demonstration device for ossification of the posterior longitudinal ligament of the cervical spine as described above, comprising the following steps:

[0113] Adding ossification medium into the reservoir 24;

[0114] Turn on the first power unit 231 and the first light-emitting element 261. The first light-emitting element 261 flashes. The first power unit 231 injects the ossification medium into the first ossification cavity 25 through the first pipe 271. Observe the flow direction of the ossification medium in the first ossification cavity 25 and the state changes of the ossification medium.

[0115] Turn on the second power unit 232 and the second light-emitting element 262. The second light-emitting element 262 flashes. The second power unit 232 injects the ossification medium into the second ossification cavity 26 through the second pipe 272. Observe the flow direction of the ossification medium in the second ossification cavity 26 and the state changes of the ossification medium.

[0116] The first ossification cavity 25 and / or the second ossification cavity 26 is opened, and the ossification medium is removed.

[0117] Different from the prior art, the technical solution of the present application is that the ossification medium can be injected into the first ossification cavity 25 through the first power unit 231, and 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 has a preset shape and extends along the first direction (the direction indicated by the arrow a in the figure), that is, longitudinal extension, simulating the longitudinal growth process of the ossification; 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 has a preset shape and extends along the second direction (the direction indicated by the arrow b in the figure), that is, transverse extension, simulating the transverse growth process of the ossification, which can realistically reflect the pathological process of ossification of the posterior longitudinal ligament of the cervical spine.

[0118] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this 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 supply, a power mechanism, a storage chamber, and two or more 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 provided within the first vertebral body, and a second spinal canal is provided within 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 preset shapes. The first ossification cavity is provided within the first spinal canal and extends along a first direction. The second ossification cavity is provided within the second spinal canal and extends along a second direction. The storage chamber is used to store an ossification medium. The power source is electrically connected to the power mechanism. The power mechanism is disposed in the storage chamber and includes a first power unit and a second power unit. The first power unit is connected to the first ossification cavity via a first pipe. The first power unit is used to inject the ossification medium in the storage chamber into the first ossification cavity to simulate the longitudinal growth of the ossified material. The second power unit is connected to the second ossification cavity via a second pipe. The second power unit is used to inject the ossification medium in the storage chamber into the second ossification cavity to simulate the lateral growth of the ossified material. The ossification medium is ossification mud. The demonstration model also includes a first balloon and a second balloon. The first balloon is disposed in the first ossification cavity and is connected to the first tube. The second balloon is disposed in the second ossification cavity and is connected to the second tube. The first balloon is fixed to the end of the first tube, and the second balloon is fixed to the end of the second tube. The ossification medium is in liquid form. When injected into the first and second balloons, the first and second balloons become larger. The first and second balloons are colored balloons. The first ossification cavity limits the changes of the first balloon, and the second ossification cavity limits the changes of the second balloon. After the demonstration is completed, the first and second balloons are taken out and replaced with new balloons without cleaning the first and second ossification cavities.

2. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 1, 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.

3. 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 provided in the third vertebral body, and a fourth vertebral canal is provided 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 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 pipe, and the third power unit is used to inject the ossification medium in the storage chamber into the third ossification cavity.

4. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 3, 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.

5. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 4, characterized in that: The cervical vertebra further comprises a fifth vertebra and a sixth vertebra arranged along a first direction, wherein a fifth vertebral canal is provided in the fifth vertebral body, and a sixth vertebral canal is provided 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.

6. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to claim 5, 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.

7. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to any one of claims 1 to 6, characterized in that: 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.

8. The demonstration device for ossification of the posterior longitudinal ligament of the cervical spine according to any one of claims 1 to 6, 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.

9. 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 according to any one of claims 1 to 8, 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, and the first power unit injects the ossification medium into the first ossification cavity through the first channel, 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 element, and the second light-emitting element flashes. The second power unit injects the ossification medium into the second ossification cavity through the second pipe, and observes 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 removed.

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