Double-layer rack structure for artificial bone repair material freeze dryer

Abstract

The utility model relates to the technical field of frozen vacuum drying discloses a double -deck frame structure for artificial bone repair material freeze dryer, including support, support top is equipped with the placing plate, and the freeze -drying groove is opened to the top of placing plate, and the support plate is equipped with above placing plate, and the bottom four corners of support plate are connected with freeze -drying groove inner wall through support component respectively, the utility model places the placing plate and the support plate of support top as the foundation, and the stable support of fixed column and spacing sleeve in support component middle support pole, through the locating groove of placing plate bottom support column and support plate adaptation, can be stacked and form double -deck and expand multilayer, and the freeze -drying area is increased greatly, and freeze dryer need not be newly bought, solve the lack of space, improve efficiency, and the six -sided groove of positioning block and connecting block guarantees structure stability. It can be directly placed in the inherent plate layer of freeze dryer, and the cost is reduced without reforming or newly buying equipment, the number of layers can be adjusted to the support column, the clearance groove keeps airflow circulation, ensures the key performance of material freeze -drying, and helps large -scale low -cost production.

Description

Technical Field

[0001] This utility model relates to the field of freeze-drying technology, and in particular to a double-layer frame structure for a freeze dryer of artificial bone repair materials. Background Technology

[0002] In the field of medical biomaterials, artificial bone repair materials, as key medical devices for repairing bone tissue defects, have stringent requirements for drying processes during production. They require vacuum freeze-drying in a freeze dryer to remove moisture from the material at low temperatures while preserving its three-dimensional porous structure, bioactivity, and mechanical properties, ensuring the safety and effectiveness of subsequent clinical applications. Currently, the freeze-drying process of artificial bone repair materials mainly relies on the inherent plates of the freeze dryer. The artificial bone repair material to be dried is directly placed on the plates provided with the freeze dryer to complete the dehydration process. This method is currently the mainstream operating mode for freeze-drying production of artificial bone repair materials in the industry.

[0003] However, the freeze-drying area of ​​existing freeze dryers is limited by the inherent number and size of their plates. When the production demand for artificial bone repair materials increases, leading to a greater need for freeze-drying area, existing equipment cannot be expanded by adjusting or extending its internal structure to increase the freeze-drying space. Companies must therefore purchase new freeze dryers to meet production needs. Purchasing new equipment not only requires significant investment in equipment procurement but also necessitates corresponding site, energy, and maintenance costs, significantly increasing the production input for artificial bone repair materials. This hinders companies from controlling production costs and improving production efficiency, becoming a key technical problem restricting the large-scale, low-cost production of artificial bone repair materials. Utility Model Content

[0004] Given that the freeze-drying area of ​​existing artificial bone repair materials is limited by the number and size of the inherent plates, and that when the demand for freeze-drying area increases, the demand can only be met by purchasing new freeze-dryers, resulting in high production costs and limited production efficiency for enterprises, this utility model is proposed.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a double-layer frame structure for a freeze dryer of artificial bone repair materials, including a support frame, a placement plate on the top of the support frame, a freeze drying groove on the top of the placement plate, a support plate above the placement plate, and the four bottom corners of the support plate being connected to the inner wall of the freeze drying groove through support components.

[0006] As a preferred embodiment, the support assembly includes a support rod with external threads on its upper outer wall. The top of the support plate has a plurality of rectangularly distributed threaded grooves adapted to the support rod. The portion of the support rod with external threads is threadedly connected to the threaded grooves. A top cap is connected to the top of the support plate at the upper end of the support rod.

[0007] As a preferred embodiment, a fixing post is fixedly connected to the lower end of the support rod, a connecting block is sleeved on the outside of the fixing post, and the connecting block is threadedly connected to the fixing post. A limiting sleeve is sleeved on the outside of the connecting block, and the limiting sleeve is fixedly connected to the bottom wall of the freeze-drying tank.

[0008] As a preferred embodiment, a positioning block is fixedly installed at the bottom of the limiting sleeve, and the positioning block has a hexagonal prism structure. The bottom of the connecting block is provided with a hexagonal groove that matches the positioning block.

[0009] As a preferred embodiment, a gap groove is formed between the support plate and the placement plate around its perimeter, and the gap groove is connected to the freeze-drying tank.

[0010] As a preferred embodiment, the bottom of the placement plate is symmetrically provided with several support columns, and the bottom of the placement plate is symmetrically provided with several threaded grooves that are adapted to the support columns. The upper end of the support column is threadedly connected to the inner wall of the threaded groove. The top of the support plate is provided with a positioning groove corresponding to the position of the threaded groove, and the positioning groove is adapted to the support column.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model's double-layer frame structure forms a basic load-bearing frame through the placement plate at the top of the support and the upper support plate. Stable support is achieved through the cooperation of the support rods, fixed columns, and limiting sleeves in the support components. Furthermore, by utilizing the adaptation of the support column at the bottom of the placement plate and the positioning groove on the support plate, a new placement plate can be superimposed on top of the support plate, forming a double-layer structure of "placement plate below the support plate + placement plate at the top of the support plate". It can also be further expanded to multiple placement plates, which can significantly increase the freeze-drying area based on the inherent plate layers of the freeze dryer. It can meet the increased production needs of artificial bone repair materials without purchasing a new freeze dryer, effectively solving the problem of insufficient freeze-drying space and improving production efficiency. At the same time, the adaptation of the hexagonal groove at the bottom of the positioning block and the connecting block can enhance the guiding and limiting effect of the support rod, ensuring the stability of the double-layer and multi-layer structures, avoiding damage to the artificial bone repair materials due to structural shaking during the freeze-drying process, and ensuring the stability of the materials during the freeze-drying process.

[0012] 2. This utility model can be directly placed on the existing plate of a freeze dryer without modifying the original freeze dryer or investing heavily in purchasing a new one. This avoids equipment procurement costs and associated costs for site, energy, and maintenance, significantly reducing the production input of artificial bone repair materials. Furthermore, the bottom support column of the placement plate is threadedly connected to the threaded groove, supporting the detachable and adjustable support column. This allows for flexible adjustment of the number of stacked layers of the placement plate according to actual freeze-drying needs. The gap grooves between the support plate and the placement plate can also communicate with the freeze-drying tank, ensuring normal airflow during freeze-drying. This ensures that the artificial bone repair material retains its three-dimensional porous structure, bioactivity, and mechanical properties during low-temperature dehydration, controlling production costs and ensuring product quality. This helps enterprises achieve large-scale, low-cost production of artificial bone repair materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure between the placement plate and the support plate of this utility model; Figure 3 This is a schematic diagram of the structure between the support plate and the support assembly of this utility model; Figure 4 This is a partial cross-sectional structural diagram of the support component of this utility model; Figure 5 This is a bottom view of the placement plate of this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Bracket; 2. Placement plate; 3. Support plate; 4. Freeze-drying tank; 5. Support assembly; 6. Support rod; 7. External thread; 8. Top cap; 9. Fixing column; 10. Connecting block; 11. Limiting sleeve; 12. Positioning block; 13. Support column; 14. Threaded groove one; 15. Positioning groove; 16. Clearance groove; 17. Threaded groove two. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Reference Figure 1 - Figure 5 As shown, a double-layer frame structure for a freeze dryer of artificial bone repair materials is provided, including a support 1, a placement plate 2 on the top of the support 1, a freeze drying trough 4 on the top of the placement plate 2, a support plate 3 above the placement plate 2, and support components 5 connecting the four bottom corners of the support plate 3 to the inner wall of the freeze drying trough 4. This structure forms a double-layer basic load-bearing frame consisting of a placement plate 2 below the support plate 3 and a placement plate 2 on top of the support plate 3, providing stable structural support for subsequent stacking of multiple placement plates 2. It can significantly expand the freeze drying area on the existing plate layers of the freeze dryer, meeting the increased production needs of artificial bone repair materials without the need to purchase a new freeze dryer, and effectively solving the problem of insufficient freeze drying space.

[0017] In this example, the support assembly 5 includes a support rod 6. The upper outer wall of the support rod 6 is provided with an external thread 7. The top of the support plate 3 is provided with a plurality of rectangularly distributed threaded grooves 17 that are adapted to the support rod 6. The part of the outer wall of the support rod 6 with the external thread 7 is threadedly connected to the threaded grooves 17. The upper end of the support rod 6 is connected to the top of the support plate 3 with a top cap 8. In this example, the support assembly 5 is made of low-temperature resistant metal or its surface is coated with a corresponding protective coating. Through the threaded connection between the external thread 7 and the threaded grooves 17, the support rod 6 and the support plate 3 can be stably assembled. With the top cap 8, the support rod 6 can be further prevented from loosening, ensuring the support stability of the support plate 3 on the upper placement plate 2 and avoiding damage to the artificial bone repair material due to structural shaking during the freeze-drying process.

[0018] In this example, a fixing post 9 is fixedly connected to the lower end of the support rod 6. A connecting block 10 is sleeved on the outside of the fixing post 9, and the connecting block 10 is threadedly connected to the fixing post 9. A limiting sleeve 11 is sleeved on the outside of the connecting block 10, and the limiting sleeve 11 is fixedly connected to the bottom wall of the freeze-drying tank 4. The threaded connection between the fixing post 9 and the connecting block 10, and the sleeved fit between the connecting block 10 and the limiting sleeve 11, can stably fix the support rod 6 in the freeze-drying tank 4, providing reliable bottom support for the support plate 3, ensuring that the double-layer and multi-layer structures are not easily deformed during the freeze-drying process, and ensuring the stability of the artificial bone repair material placement.

[0019] In this example, a positioning block 12 is fixedly installed at the bottom of the limiting sleeve 11, and the positioning block 12 is a hexagonal prism structure. The bottom of the connecting block 10 is provided with a hexagonal groove that matches the positioning block 12. The matching of the hexagonal prism positioning block 12 and the hexagonal groove can play a precise guiding and limiting role for the connecting block 10, preventing the connecting block 10 from rotating inside the limiting sleeve 11, thereby avoiding the offset of the support rod 6, further enhancing the overall stability of the support component 5, ensuring that the support plate 3 remains in a horizontal state, and ensuring the stability of the freeze-drying process of the artificial bone repair material on the upper placement plate 2.

[0020] In this example, a gap groove 16 is formed between the support plate 3 and the placement plate 2, and the gap groove 16 is connected to the freeze-drying tank 4. The connection between the gap groove 16 and the freeze-drying tank 4 can ensure normal airflow during the freeze-drying process, make the temperature around the artificial bone repair material uniform, ensure that the material is fully dried during low-temperature dehydration, and effectively retain its three-dimensional porous structure, bioactivity and mechanical properties, thus ensuring product quality.

[0021] In this example, the bottom of the placement plate 2 is symmetrically provided with several support columns 13, and the bottom of the placement plate 2 is symmetrically provided with several threaded grooves 14 that are adapted to the support columns 13. The upper end of the support column 13 is threadedly connected to the inner wall of the threaded groove 14. The top of the support plate 3 is provided with a positioning groove 15 corresponding to the position of the threaded groove 14, and the positioning groove 15 is adapted to the support column 13. The threaded connection between the support column 13 and the threaded groove 14 allows the support column 13 to be detachably adjusted. With the positioning function of the positioning groove 15 for the support column 13, the number of stacked layers of the placement plate 2 can be flexibly adjusted according to the actual freeze-drying requirements. At the same time, it ensures that the stacked placement plate 2 is not easily shifted. This not only improves the flexibility of the structure, but also reduces the equipment investment and supporting costs, helping enterprises control the production investment of artificial bone repair materials.

[0022] During use, the structure uses the bracket 1 as the basic load-bearing component, and the placement plate 2 on top is used to directly place the artificial bone repair material. The support rod 6 in the support component 5 is threaded to the threaded groove 17 on the top of the support plate 3 through the external thread 7 on the upper outer wall, so as to fix the support rod 6 and the support plate 3. At the same time, the fixing post 9 at the lower end of the support rod 6 is fitted with the connecting block 10. The connecting block 10 is then fitted into the limiting sleeve 11 which is fixed to the bottom wall of the freeze-drying tank 4. With the matching of the hexagonal prism positioning block 12 at the bottom of the limiting sleeve 11 and the hexagonal groove at the bottom of the connecting block 10, the support component 5 is accurately positioned and stably installed, so that the support plate 3 is stably erected above the placement plate 2, forming the basic structure of "placement plate 2 + support component 5 + support plate 3".

[0023] Based on this, a new placement plate 2 can be placed on top of the support plate 3. The support column 13 at the bottom of the new placement plate 2 is connected to the threaded groove 14 at its bottom and inserted into the positioning groove 15 at the top of the support plate 3 below, so as to achieve stable fixation of the new placement plate 2. Finally, a double-layer bearing structure of "placement plate 2 - support plate 3 - placement plate 2" is formed to meet the requirements of layered placement and freeze-drying of artificial bone repair materials. At the same time, the gap groove 16 between the support plate 3 and the placement plate 2 is connected to the freeze-drying tank 4 to ensure airflow during freeze-drying and ensure uniform drying of materials.

[0024] When multiple layers of placement plates 2 are required for material freeze-drying, simply place the support plate 3 supported by the support component 5 in the freeze-drying trough 4 opened at the top of the existing uppermost placement plate 2 in the manner described above, and then place a new placement plate 2 on top of the new support plate 3 to achieve a multi-layer stacked structure of "one layer of support plate 3, one layer of placement plate 2, and one layer of support plate 3", thus flexibly expanding the freeze-drying area.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-layer frame structure for a freeze dryer of artificial bone repair materials, comprising a support frame (1), characterized in that: The bracket (1) is provided with a placement plate (2) at the top, and a freeze-drying tank (4) is provided at the top of the placement plate (2). A support plate (3) is provided above the placement plate (2), and the four bottom corners of the support plate (3) are respectively connected to the inner wall of the freeze-drying tank (4) through support components (5). The support assembly (5) includes a support rod (6), the upper outer wall of the support rod (6) is provided with an external thread (7), the top of the support plate (3) is provided with a plurality of threaded grooves (17) that are adapted to the support rod (6), the part of the outer wall of the support rod (6) provided with the external thread (7) is threadedly connected to the threaded grooves (17), and the upper end of the support rod (6) is connected to the top of the support plate (3) with a top cap (8); The lower end of the support rod (6) is fixedly connected to a fixed column (9). A connecting block (10) is sleeved on the outside of the fixed column (9), and the connecting block (10) is threadedly connected to the fixed column (9). A limiting sleeve (11) is sleeved on the outside of the connecting block (10), and the limiting sleeve (11) is fixedly connected to the bottom wall of the freeze-drying tank (4).

2. The double-layer frame structure for a freeze dryer of artificial bone repair materials according to claim 1, characterized in that: The bottom of the limiting sleeve (11) is fixedly installed with a positioning block (12), and the positioning block (12) is a hexagonal prism structure. The bottom of the connecting block (10) is provided with a hexagonal groove that matches the positioning block (12).

3. The double-layer frame structure for a freeze dryer of artificial bone repair materials according to claim 2, characterized in that: The support plate (3) forms a gap groove (16) between the support plate (3) and the placement plate (2), and the gap groove (16) is connected to the freeze-drying tank (4).

4. The double-layer frame structure for a freeze dryer of artificial bone repair materials according to claim 3, characterized in that: The bottom of the placement plate (2) is symmetrically provided with several support columns (13), and the bottom of the placement plate (2) is symmetrically provided with several threaded grooves (14) that are adapted to the support columns (13). The upper end of the support column (13) is threadedly connected to the inner wall of the threaded groove (14). The top of the support plate (3) is provided with a positioning groove (15) corresponding to the position of the threaded groove (14), and the positioning groove (15) is adapted to the support column (13).

Images