Freeze-drying mold of dental filler support
By designing a freeze-drying mold for dental filling supports, and utilizing a detachable base and plunger structure, the problems of filling fluid contamination and difficulty in demolding during the freeze-drying process are solved, achieving protection and efficient demolding during the freeze-drying process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU QIPU BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-28
AI Technical Summary
Existing freeze-dried molds for dental filling frameworks are prone to contaminating the filling fluid during demolding and are difficult to demold efficiently.
A freeze-drying mold comprising a molding seat, a base, and a top cover was designed. The through channel is sealed by a detachably connected base, and the filling liquid is sealed by a plunger inserted into the through channel. After freeze-drying, the plunger is unscrewed to push out the support. Combined with the polytetrafluoroethylene layer and support cylinder structure, the filling liquid is ensured to be uncontaminated and easy to demold.
It protects the filler liquid from contamination during freeze-drying, and the demolding process is simple and efficient, avoiding damage to the filler support.
Smart Images
Figure CN224166436U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of freeze-drying mold technology for dental filling stents, and more specifically, to a freeze-drying mold for dental filling stents. Background Technology
[0002] Dental filling frameworks are generally used in dental implant surgery. First, the dental filling framework and the artificial tooth root are filled into the defective alveolar bone. Through the osteoconduction and osteoinduction effects of the dental filling framework, the bone growth is induced and the new bone is conducted to the artificial tooth root, where it is tightly integrated with the artificial tooth root. During this process, the dental filling framework gradually degrades.
[0003] Dental filling frameworks are formed by freeze-drying filling fluid, requiring specific molds for shaping and freeze-drying. Therefore, this application provides a freeze-drying mold for dental filling frameworks. Utility Model Content
[0004] This application provides a freeze-drying mold for dental filling frameworks, which facilitates the removal of the molded dental filling framework from the freeze-drying mold.
[0005] This application is implemented as follows:
[0006] This application provides a freeze-dried mold for a dental filling support, comprising:
[0007] A molding base, wherein the molding base is provided with multiple through channels along the thickness direction;
[0008] A base, disposed on one side of the molding seat in the thickness direction and capable of closing one end of the through channel, the base being detachably connected to the molding seat; and
[0009] The upper cover includes a cover plate and a plunger threadedly connected to the cover plate. The cover plate is located on the other side of the thickness direction of the molding seat, and the plunger is movable along the thickness direction of the cover plate and can extend into the other end of the through channel.
[0010] In one possible implementation, the end of the plunger that can extend into the through channel has a polytetrafluoroethylene layer.
[0011] In one possible implementation, the end of the plunger that can extend into the through channel is flat.
[0012] In one possible implementation, the base includes a base plate and a plurality of support cylinders disposed on one side of the base plate. The support cylinders protrude from the surface of the base plate. One side of the molding seat is provided with a plurality of grooves. Each groove is arranged in a ring around a through channel. Each support cylinder can be inserted into the groove and the surface of the base plate can be in contact with the surface of the molding seat.
[0013] In one possible implementation, the groove opening diameter is larger than the groove width.
[0014] In one possible implementation, the molding base includes a molding plate and a fixing plate disposed on the edge of the molding plate, the through channel is disposed on the molding plate, the bottom surface of the fixing plate is flush with the bottom surface of the molding plate, and the fixing plate and the base plate are detachably connected by fasteners.
[0015] In one possible implementation, the locking device includes a nut and a connecting post disposed on the base plate, the fixing plate having a connecting through hole, the connecting post passing through the connecting through hole and being threadedly connected to the nut.
[0016] In one possible implementation, the edge of the fixing plate is offset from the edge of the base plate.
[0017] In one possible implementation, the through channel is cylindrical.
[0018] In one possible implementation, the length of the plunger is L1, the length of the through channel is L2, and the thickness of the cover plate is L3, wherein L1 > L2 + L3.
[0019] This application has at least the following beneficial effects:
[0020] The freeze-drying mold for dental filling frameworks disclosed in this application has a base that seals one end of the through-channel of the molding seat. Filling fluid is injected into the through-channel, and a top cover is placed on top of the molding seat. The plunger of the top cover extends into the through-channel, sealing the filling fluid within it. The entire freeze-drying mold is placed in a freeze-drying device for freeze-drying. The filling fluid solidifies within the through-channel to form a dental filling framework. For demolding, the base and molding seat are first separated, exposing one end of the dental filling framework. Then, by screwing in the plunger, the dental filling framework can be pushed out of the through-channel. The freeze-drying mold for dental filling frameworks disclosed in this application not only ensures that the filling fluid is not contaminated during freeze-drying but also facilitates demolding. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of the freeze-drying mold for a dental filling support according to an embodiment of this application;
[0023] Figure 2 This is an exploded view of the freeze-dried mold of the dental filling support according to an embodiment of this application;
[0024] Figure 3 This is another structural schematic diagram of the freeze-dried mold for a dental filling support according to an embodiment of this application.
[0025] Icons: 10-Freeze-drying mold; 11-Forming base; 111-Through channel; 112-Groove; 113-Forming plate; 114-Fixing plate; 1141-Connecting through hole; 12-Base; 121-Bottom plate; 122-Support cylinder; 123-Connecting column; 13-Top cover; 131-Cover plate; 132-Plunger; 133-Locking block; 142-Nut. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example
[0030] This application provides a freeze-dried mold 10 for a dental filling support. Please refer to... Figure 1 and Figure 2 It includes a molding base 11, a base 12 and a top cover 13.
[0031] The molding base 11 has multiple through channels 111 along its thickness direction, for example, the through channels 111 are cylindrical. It is understood that the through channels 111 can also be square prisms, pentagonal prisms, hexagonal prisms, etc., and the shape of the through channels 111 can be adjusted according to the specific needs of the dental filling framework. The base 12 is located on one side of the molding base 11 in the thickness direction and can close the bottom end of the through channels 111. The base 12 is detachably connected to the molding base 11. By connecting and fixing the base 12 to the molding base 11, the base 12 closes the bottom end of the through channels 111, making leakage less likely after filling fluid is injected into the through channels 111.
[0032] The upper cover 13 includes a cover plate 131 and a plunger 132 threadedly connected to the cover plate 131. The cover plate 131 has multiple threaded through holes along its thickness direction. The outer wall of the plunger 132 is threaded, and the plunger 132 is disposed within the threaded through holes and threadedly connected to the hole walls. The cover plate 131 is located on one side of the top end of the forming seat 11 along its thickness direction. The plunger 132 can move along the thickness direction of the cover plate 131 and can extend into the other end of the through channel 111. By rotating the plunger 132 along the thickness direction of the cover plate 131, the plunger 132 can extend into the through channel 111. The length of the plunger 132 is L1, the length of the through channel 111 is L2, and the thickness of the cover plate 131 is L3. Since L1 > L2 + L3, even if the plunger 132 completely fills the through channel 111, the plunger 132 will not detach from the cover plate 131, thus facilitating overall assembly.
[0033] In addition, a locking block 133 is connected to the top of the plunger 132. The outer diameter of the locking block 133 is larger than the inner diameter of the threaded through hole, so that the locking block 133 can prevent the plunger 132 from being removed from the cover plate 131.
[0034] In the use of the freeze-dried mold 10 for dental filling holders of this application, the base 12 is connected and fixed to the molding seat 11, so that the base 12 closes the bottom end of the through channel 111. Then, the filling fluid of the dental filling holder is injected into the through channel 111. Afterwards, the cover plate 131 is placed on the top of the molding seat 11, and the plunger 132 is threadedly connected to the cover plate 131 and extends into the through channel 111 to seal the filling fluid within the through channel 111. It should be noted that the depth to which the plunger 132 extends into the through channel 111 can be adjusted according to the amount of filling fluid injected.
[0035] Subsequently, the entire freeze-drying mold 10 is placed in a freeze-drying device for freeze-drying. The filling liquid is formed into a dental filling framework within the through channel 111. During demolding, the base 12 is first separated from the molding seat 11, exposing one end of the dental filling framework. Then, by screwing in the plunger 132, the dental filling framework within the through channel 111 can be pushed out of the through channel 111. The freeze-drying mold 10 for the dental filling framework of this application not only ensures that the filling liquid is not contaminated during the freeze-drying process but also facilitates demolding.
[0036] For example, the end of the plunger 132 that can extend into the through channel 111 is flat, and the surface of the dental filling holder formed by the filling liquid after freeze-drying in the through channel 111 is also flat. Then, the plunger 132 with a flat end face will push the dental filling holder out of the through channel 111 during the slow rotation process, and it is not easy to damage the dental filling holder.
[0037] Furthermore, the end of the plunger 132 that extends into the through channel 111 has a polytetrafluoroethylene (PTFE) layer. PTFE is resistant to both high and low temperatures, making it suitable for use at low temperatures during freeze-drying. Moreover, PTFE has an extremely low coefficient of friction, providing lubrication and preventing adhesion. Therefore, the plunger 132 is less likely to adhere to the dental filling framework.
[0038] In addition, to better prevent leakage between the base 12 and the molding seat 11 when filling liquid is injected into the through channel 111, please refer to... Figure 3 In one embodiment, the base 12 includes a base plate 121 and a plurality of support cylinders 122 disposed on one side of the base plate 121, the support cylinders 122 protruding from the surface of the base plate 121. One side of the molding seat 11 is provided with a plurality of grooves 112, each groove 112 surrounding a through channel 111. Each support cylinder 122 can be inserted into a corresponding groove 112, allowing the surface of the base plate 121 to contact the surface of the molding seat 11. For example, the opening diameter of the groove 112 is larger than the width of the groove 112, making it easier to insert the support cylinder 122 into the groove 112.
[0039] By inserting the support cylinder 122 into the corresponding groove 112, the connection between the base 12 and the molding seat 11 becomes more stable, and the base plate 121 and the molding seat 11 are less likely to wobble towards each other in the lateral direction. Moreover, the support cylinder 122 has a certain depth, which can further prevent the filling liquid in the through channel 111 from overflowing. When the surface of the base plate 121 contacts the surface of the molding seat 11 and the two are firmly connected, the possibility of filling liquid overflow is greatly reduced.
[0040] Additionally, the molding base 11 includes a molding plate 113 and a fixing plate 114 disposed at the edge of the molding plate 113. The bottom surface of the fixing plate 114 is flush with the bottom surface of the molding plate 113. A through channel 111 is disposed on the molding plate 113. The fixing plate 114 and the base plate 121 are detachably connected by fasteners. By connecting the fixing plate 114 and the base plate 121, the through channel 111 can be staggered, facilitating connection and fixation. Furthermore, the edges of the fixing plate 114 and the base plate 121 are staggered, thereby facilitating the separation of the disassembled base plate 121 and the fixing plate 114.
[0041] For example, the locking device includes a nut 142 and a connecting post 123 disposed on the base plate 121. The fixing plate 114 has a connecting through hole 1141, and the connecting post 123 passes through the connecting through hole 1141 and is threadedly connected to the nut 142. By connecting the connecting post 123 on the base plate 121 to the nut 142, the bottom wall of the base plate 121 can be kept relatively flat, avoiding the possibility of other connecting parts causing the bottom of the base plate 121 to bulge. This ensures that the liquid level of the filling fluid in the through channel 111 is flat, and the surface of the formed dental filling support is flat.
[0042] In summary, the freeze-drying mold 10 for dental filling frameworks of this application has a base 12 that closes one end of the through channel 111 of the molding seat 11. Filling fluid is injected into the through channel 111, and then a top cover 13 is placed on top of the molding seat 11. The plunger 132 of the top cover 13 extends into the through channel 111, sealing the filling fluid within it. The entire freeze-drying mold 10 is placed in a freeze-drying device for freeze-drying. The filling fluid forms a dental filling framework within the through channel 111. During demolding, the base 12 is first separated from the molding seat 11, exposing one end of the dental filling framework. Then, by screwing in the plunger 132, the dental filling framework can be pushed out of the through channel 111. The freeze-drying mold 10 for dental filling frameworks of this application not only ensures that the filling fluid is not contaminated during freeze-drying but also facilitates demolding.
[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A freeze-dried mold for a dental filling support, characterized in that, include: A molding base, wherein the molding base is provided with multiple through channels along the thickness direction; A base is disposed on one side of the molding seat in the thickness direction and is capable of closing one end of the through channel. The base is detachably connected to the molding seat. as well as The upper cover includes a cover plate and a plunger threadedly connected to the cover plate. The cover plate is located on the other side of the thickness direction of the molding seat, and the plunger is movable along the thickness direction of the cover plate and can extend into the other end of the through channel.
2. The freeze-drying mold for a dental filling support according to claim 1, characterized in that, The end of the plunger that can extend into the through channel has a polytetrafluoroethylene layer.
3. The freeze-drying mold for a dental filling support according to claim 1, characterized in that, The end of the plunger that can extend into the through channel is flat.
4. The freeze-dried mold for a dental filling framework according to any one of claims 1 to 3, characterized in that, The base includes a base plate and a plurality of support cylinders disposed on one side of the base plate. The support cylinders protrude from the surface of the base plate. One side of the forming seat is provided with a plurality of grooves. Each groove is arranged in a ring around a through channel. Each support cylinder can be inserted into the groove and the surface of the base plate can be in contact with the surface of the forming seat.
5. The freeze-drying mold for a dental filling support according to claim 4, characterized in that, The diameter of the groove opening is greater than the width of the groove.
6. The freeze-drying mold for a dental filling support according to claim 4, characterized in that, The molding base includes a molding plate and a fixing plate disposed on the edge of the molding plate. The through channel is disposed on the molding plate. The bottom surface of the fixing plate is flush with the bottom surface of the molding plate. The fixing plate and the base plate are detachably connected by fasteners.
7. The freeze-drying mold for a dental filling support according to claim 6, characterized in that, The locking device includes a nut and a connecting post disposed on the base plate. The fixing plate has a connecting through hole, and the connecting post passes through the connecting through hole and is threadedly connected to the nut.
8. The freeze-drying mold for a dental filling support according to claim 7, characterized in that, The edges of the fixing plate and the bottom plate are offset from each other.
9. The freeze-dried mold for a dental filling framework according to any one of claims 1 to 3, characterized in that, The through channel is cylindrical.
10. The freeze-dried mold for a dental filling framework according to any one of claims 1 to 3, characterized in that, The length of the plunger is L1, the length of the through channel is L2, and the thickness of the cover plate is L3, wherein L1 > L2 + L3.