Mold for preparing absorbable bone wax sample
By designing a mold with die-casting and cleaning mechanisms, the problems of material overflow and inconvenient cleaning during bone wax sample preparation were solved, achieving precision and stability in bone wax molding and reducing material waste and manual intervention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGKEMEIDE MEDICAL TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing bone wax sample preparation process, the material is prone to overflowing from the mold, resulting in uneven bone wax products. Furthermore, traditional molds are inconvenient to clean and maintain, and material waste is significant.
A mold comprising a base, a mold, a die-casting mechanism, and a cleaning mechanism was designed. Springs and electric telescopic rods ensure accurate material molding, a temperature sensor monitors the molding temperature, and the cleaning mechanism automatically removes residual material via a scraper.
It achieves dimensional accuracy and quality stability in bone wax molding, reduces material waste, and improves the convenience of cleaning and maintenance, making it suitable for small-batch precision preparation of absorbable bone wax.
Smart Images
Figure CN224158725U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a mold for preparing absorbable bone wax samples. Background Technology
[0002] Bone bleeding is a common occurrence during surgical procedures. For bleeding from the cancellous bone surface, venous sinuses, and medullary cavity, the most commonly used hemostatic material is bone wax. Currently, the bone wax hemostatic materials commonly used in China are usually prepared by mixing raw materials such as beeswax, paraffin, and petrolatum in a certain mass ratio. It is not absorbed by the human body, so it will always exist in the body as a foreign substance, which is not conducive to the regeneration and healing process of autologous bone tissue. At the same time, it may also cause chronic inflammation and obvious foreign body reaction, reduce bacterial clearance rate, and increase the risk of bone infection.
[0003] Therefore, many researchers have focused on the development of absorbable bone wax. In the research and development process, it is essential to produce laboratory samples or small batches of absorbable bone wax samples. However, when making bone wax samples in the laboratory, the raw materials, which are a mixture of beeswax, paraffin wax and petrolatum, are usually poured directly into the mold. However, after pouring, the mixture overflows from the mold, generating many rough edges, which makes the resulting bone wax uneven. To address this, we propose a mold for preparing absorbable bone wax samples. Utility Model Content
[0004] The purpose of this invention is to provide a mold for preparing absorbable bone wax samples, in order to solve the problem mentioned in the background art that the wax overflows from the mold after injection, generating many rough edges and resulting in uneven bone wax.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold for preparing absorbable bone wax samples, comprising a base, a mold groove in the middle of the base, a mold placed on top of the mold groove, the mold being cuboid in shape, and a support plate fixedly connected above the base; a die-casting mechanism, comprising an anti-stick plate located above the mold, four No. 1 springs evenly distributed above the anti-stick plate, and a pressure plate fixedly connected above the No. 1 springs; and a cleaning mechanism, comprising a cylinder and a temperature sensor, the cylinder being fixedly connected to the rear area of the inner wall of the support plate, and No. 2 springs arranged on both sides of the cylinder, with a scraper fixedly connected to the end of the No. 2 spring away from the inner wall of the support plate.
[0006] The mold surface is evenly provided with multiple material grooves, which are rectangular in shape. A resin plate is provided at the bottom of the material groove, and a temperature sensor is fixedly connected to the bottom of the resin plate. There are five temperature sensors, which are evenly distributed inside the mold.
[0007] The base has two dovetail grooves on its upper part, which are located on both sides of the mold groove. A slider is slidably connected above the dovetail grooves.
[0008] The scraper is concave, and the scraper is fixedly connected to the slider by bolts at the bottom.
[0009] The anti-stick plate is fixedly connected to the No. 1 spring. The length and width of the pressure plate are the same as the length and width of the mold. An electric telescopic rod is fixedly connected above the pressure plate. The electric telescopic rod is fixedly connected to the upper area of the inner wall of the support plate.
[0010] The base has a controller fixedly connected to the front.
[0011] This invention has at least the following beneficial effects: After the raw materials required for making bone wax are injected into the mold groove, the die-casting mechanism is started, and the electric telescopic rod drives the pressure plate and the anti-stick plate connected to the pressure plate to press down, ensuring that the material is formed in the cuboid material groove; the five temperature sensors built into the mold monitor the temperature change of the material forming in real time. When the temperature drops to about 35°C, the cleaning mechanism is started by the controller to remove the material remaining on the mold surface. This device significantly reduces manual intervention while ensuring the dimensional accuracy of the product, reduces material loss compared with traditional molds, and has the advantages of convenient cleaning and maintenance and stable molding quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a front view structural diagram of the present invention;
[0014] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point B in the middle;
[0015] Figure 4 This is a top view schematic diagram of the structure of this utility model;
[0016] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at point C.
[0017] In the diagram: 1. Base; 11. Mold groove; 12. Mold; 13. Support plate; 14. Material trough; 2. Die-casting mechanism; 21. Anti-stick plate; 22. Spring No. 1; 23. Pressure plate; 24. Electric telescopic rod; 3. Cleaning mechanism; 31. Cylinder; 32. Temperature sensor; 33. Spring No. 2; 34. Scraper; 35. Resin plate; 36. Dovetail groove; 37. Slider; 38. Controller. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-5 This utility model provides a technical solution: a mold for preparing absorbable bone wax samples, including a base 1, a mold groove 11 in the middle of the base 1, a mold 12 placed above the mold groove 11, the mold 12 being cuboid in shape, and a support plate 13 fixedly connected above the base 1; a die-casting mechanism 2, the die-casting mechanism 2 including an anti-stick plate 21 located above the mold 12, four first springs 22 evenly distributed above the anti-stick plate 21, and a pressure plate 23 fixedly connected above the first springs 22; and a cleaning mechanism 3, the cleaning mechanism 3 including a cylinder 31 and a temperature sensor 32, the cylinder 31 being fixedly connected to the rear area of the inner wall of the support plate 13, and second springs 33 arranged on both sides of the cylinder 31, with a scraper 34 fixedly connected to the end of the second spring 33 away from the inner wall of the support plate 13.
[0020] Multiple material grooves 14 are evenly distributed on the surface of the mold 12. The material grooves 14 are rectangular and a resin plate 35 is provided at the bottom of the material grooves 14. Temperature sensors 32 are fixedly connected to the bottom of the resin plate. There are five temperature sensors 32, which are evenly distributed inside the mold 12.
[0021] Two dovetail grooves 36 are provided on the top of the base 1. The two dovetail grooves 36 are located on both sides of the mold groove 11, and sliders 37 are slidably connected above the dovetail grooves 36.
[0022] The scraper 34 is concave, and the scraper 34 is fixedly connected to the slider 37 by bolts.
[0023] The anti-stick plate 21 is fixedly connected to the first spring 22. The length and width of the pressure plate 23 are the same as the length and width of the mold 12. An electric telescopic rod 24 is fixedly connected above the pressure plate 23. The electric telescopic rod 24 is fixedly connected to the upper area of the inner wall of the support plate 13.
[0024] A controller 38 is fixedly connected to the front of the base 1.
[0025] After the raw materials required for making bone wax are injected into the mold groove 11, the die-casting mechanism 2 is started. The electric telescopic rod 24 drives the pressure plate 23 to press down. The buffering effect of the four No. 1 springs 22 makes the anti-stick plate 21 apply pressure evenly, ensuring that the material is accurately formed in the cuboid material groove 14. The five temperature sensors 32 built into the mold 12 monitor the temperature of the resin plate 35 in real time. Because the resin plate mainly uses high-temperature epoxy resin, it has good thermal conductivity and high hardness after curing, which can effectively transfer the temperature of the bone wax to the temperature sensors 32 below.
[0026] After die casting is completed, the real-time temperature of the temperature sensor 32 is observed using the controller 38. When the temperature drops to around 35°C, the cleaning mechanism 3 is activated. This is because the temperature at this point is such that the scraper 34 can easily act on the bone wax, and the bone wax is in a semi-formed state. The cylinder 31 drives the concave scraper 34 to move along the dovetail groove 36. The scraper 34 can effectively remove the residue on the surface of the mold 12. The second spring 33 on the back of the scraper 34 plays a role in quickly retracting the scraper 34. The cylinder 31 pushes the scraper 34 to move at a slow speed, so that the second spring 33 is in a stretched state. When the scraper 34 is driven to the other end of the dovetail groove 36, the forces of the second spring 33 and the cylinder 31 work together on the scraper 34 to reset it, and the speed is faster.
[0027] Spring 22 acts as a buffer for the die casting of pressure plate 23, while the anti-stick plate 21 below prevents material from sticking during die casting and reduces material loss. Compressed air drives cylinder 31 or piston, which moves scraper 34 slowly. Spring 33 is stretched until it reaches the end of dovetail groove 36 away from the inner wall of support plate 13. Then the compressed air is released, and the preload of spring 33 is released instantly, pulling piston rod and scraper 34 to quickly reset in a no-load state. This process does not require external power and can be completed by the elastic force of the spring.
[0028] The overall structure achieves automated production process through modular design, making it particularly suitable for small-batch precision preparation of absorbable bone wax products. It significantly reduces manual intervention while ensuring product dimensional accuracy, reduces material waste compared to traditional molds, and features convenient cleaning and maintenance, as well as stable molding quality.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mold for preparing absorbable bone wax samples, comprising: A base (1) has a mold groove (11) in the middle, and a mold (12) is placed on top of the mold groove (11). The mold (12) is rectangular, and a support plate (13) is fixedly connected to the top of the base (1). Its characteristic is that it further includes: The die-casting mechanism (2) includes an anti-stick plate (21) located above the mold (12), four No. 1 springs (22) are evenly distributed above the anti-stick plate (21), and a pressure plate (23) is fixedly connected above the No. 1 springs (22). The cleaning mechanism (3) includes a cylinder (31) and a temperature sensor (32). The cylinder (31) is fixedly connected to the rear area of the inner wall of the support plate (13). A second spring (33) is provided on both sides of the cylinder (31). A scraper (34) is fixedly connected to one end of the second spring (33) away from the inner wall of the support plate (13).
2. The mold for preparing absorbable bone wax samples according to claim 1, characterized in that: The mold (12) has multiple material grooves (14) evenly distributed on its surface. The material grooves (14) are rectangular in shape. A resin plate (35) is provided at the bottom of the material grooves (14). A temperature sensor (32) is fixedly connected to the bottom of the resin plate. There are five temperature sensors (32), which are evenly distributed inside the mold (12).
3. The mold for preparing absorbable bone wax samples according to claim 2, characterized in that: Two dovetail grooves (36) are provided above the base (1), and the two dovetail grooves (36) are located on both sides of the mold groove (11). A slider (37) is slidably connected above the dovetail grooves (36).
4. The mold for preparing absorbable bone wax samples according to claim 3, characterized in that: The scraper (34) is concave, and the scraper (34) is fixedly connected to the slider (37) by bolts at the bottom.
5. The mold for preparing absorbable bone wax samples according to claim 4, characterized in that: The anti-stick plate (21) is fixedly connected to the first spring (22). The length and width of the pressure plate (23) are the same as the length and width of the mold (12). An electric telescopic rod (24) is fixedly connected above the pressure plate (23). The electric telescopic rod (24) is fixedly connected to the upper area of the inner wall of the support plate (13).
6. The mold for preparing absorbable bone wax samples according to claim 5, characterized in that: A controller (38) is fixedly connected to the front of the base (1).