Hot melting forming mechanism for processing multi-layer linear medical products

By using a thermoforming mechanism to fix and shape linear medical supplies, the problem of inconsistent positions of the mandrel and braided fabric is solved, achieving stability of the medical supplies and the formation of conical ends, thus meeting the usage requirements of medical supplies.

CN224116746UActive Publication Date: 2026-04-14SHANGHAI ZHIXINREN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHIXINREN TECHNOLOGY CO LTD
Filing Date
2024-12-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing technology, the linear medical supplies used for orthopedic treatment are unstable in use because the position of the mandrel and the braid is not fixed, and the existing connection method cannot form a conical end, which cannot meet the needs of medical supplies.

Method used

A thermoforming mechanism is used to fix multi-layered linear medical supplies without introducing external materials by heating the components and molding molds, and to form conical ends. The mandrel and braid are thermoformed and fixed using heating rods and molding molds.

Benefits of technology

This improves the stability of medical supplies, enabling them to be better applied in treatment and ensuring stability and effectiveness during use.

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Abstract

The utility model provides a hot melt forming mechanism for processing multilayer linear medical products, which comprises a base plate, a hot melt assembly comprises a bottom plate, two guide rods, a top plate, two limiting pieces and two heating assemblies, the bottom plate is arranged on the base plate, one ends of the two guide rods are connected with the bottom plate and are respectively close to two side ends of the bottom plate, and the other ends of the two guide rods are respectively close to two side ends of the top plate. The top plate is arranged on the two guide rods in a sliding mode, the two limiting pieces are detachably arranged at the other ends of the two guide rods respectively, the diameter of the limiting pieces is larger than that of the through hole, the two heating assemblies are arranged on the opposite plate walls of the bottom plate and the top plate respectively, and the heating assemblies are used for conducting hot melting, shaping and fixing on the multiple layers of linear medical products; and a lifting assembly. According to the utility model, the multi-layer linear medical supplies composed of the core shaft and the braided fabric are subjected to hot melting, shaping and fixing through the hot melting assembly under the condition that external materials are not introduced, so that the practical effect of the multi-layer linear medical supplies is ensured when the multi-layer linear medical supplies are used.
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Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, specifically to a thermoforming mechanism for processing multi-layer linear medical supplies. Background Technology

[0002] Currently, in orthopedic treatment of leg and knee joints, a thread-like medical device is used. This device is primarily used to pass through wounds or surgical sections to fix the wound or leg joint. The end of this device is preferably conical to allow it to pass through the wound or surgical section with minimal cross-section. The device mainly consists of a mandrel and a braided fabric sleeved around the mandrel. The mandrel provides strength and support, while the braided fabric provides tension. However, because the braided fabric is sleeved on the mandrel, their positions are not completely fixed, often resulting in shifting of the fabric or mandrel, which affects normal use.

[0003] In existing technologies, methods for connecting and fixing two items made of different materials mainly include screw fixing, snap-fit ​​connection, glue connection, or heat-melted glue connection. However, these connection methods are generally planar connections and cannot form a structure with a conical end. To connect two items made of different materials with a conical end, the connection is usually formed by pressing down on the ends while applying glue between and to the outside of the two items. However, in the medical industry, due to the specific requirements of the medical industry, it is not possible to introduce other unproven materials, and the material cannot be reduced excessively due to usage risks. This limits the applicability of existing connection methods to the aforementioned medical products. Utility Model Content

[0004] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a thermoforming mechanism for processing multi-layer linear medical products.

[0005] This utility model provides a thermoforming mechanism for processing multi-layer linear medical supplies, characterized by the following features:

[0006] substrate,

[0007] The hot-melt assembly includes a base plate, two guide rods, a top plate, two limiting members, and two heating assemblies. The base plate is mounted on a base plate. One end of each of the two guide rods is connected to the base plate and is positioned near both sides of the base plate. The top plate has two through holes, the diameter of which is not less than the diameter of the two guide rods, and the distance between the two through holes is equal to the distance between the two guide rods, allowing the top plate to slide on the two guide rods. The two limiting members are detachably mounted on the other end of each of the two guide rods, and the diameter of the limiting members is larger than the diameter of the through holes. The two heating assemblies are respectively mounted on the opposite walls of the base plate and the top plate. The heating assemblies are used for hot-melt shaping and fixing of multi-layered linear medical supplies.

[0008] The mounting base includes a mounting section and a limiting section. One end of the mounting section is connected to the substrate and is perpendicular to the substrate. One end of the limiting section is connected to the mounting section, and the other end extends outward from the mounting rod. The other end of the limiting section is located above the top plate and parallel to the top plate. A sliding hole is provided on the other end of the limiting section.

[0009] The lifting assembly includes a pressure handle and a connecting rod. One end of the pressure handle is hinged to the other end of the mounting section, one end of the connecting rod is connected to the pressure handle, and the other end of the connecting rod is connected to the top plate through a sliding hole.

[0010] The thermoforming mechanism for processing multi-layer linear medical products provided by this utility model also has the following features: each limiting member is provided with a connecting hole, and the inner wall of the connecting hole and the outer wall of the limiting rod near its other end are respectively provided with interlocking internal threads and external threads.

[0011] The thermoforming mechanism for processing multi-layer linear medical products provided by this utility model also has the following features: the heating assembly includes a heat insulation plate, a molding die, and a heating rod. The heat insulation plate is disposed on the bottom wall of the top plate or the top wall of the bottom plate. The molding die is disposed on the heat insulation plate. A semi-conical molding groove is opened on the outer wall of the molding die facing away from the heat insulation plate. The groove opening extends to the side wall of the molding die. The heating rod is disposed inside the molding die, and at least one end of the heating rod is located outside the molding die.

[0012] Functions and effects of utility models

[0013] The thermoforming mechanism for processing multi-layer linear medical supplies according to this utility model aims to thermo-melt and fix multi-layer linear medical supplies composed of a mandrel and braided fabric without introducing external materials through a thermo-melting component. At the same time, the thermo-melting component shapes the ends of the medical supplies into a conical shape, thereby enabling the medical supplies to be better used in treatment, improving the stability of the medical supplies during use, and thus ensuring the practical effect of this utility model. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the hot melt assembly in this utility model;

[0016] Figure 3 This is a front view of the hot melt assembly in this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 10. Base plate; 20. Hot melt assembly; 21. Base plate; 22. Guide rod; 23. Top plate; 24. Limiting component; 25. Heat insulation plate; 26. Molding mold; 27. Heating rod; 28. Molding groove; 30. Mounting base; 31. Mounting section; 32. Limiting section; 40. Lifting assembly; 41. Pressure handle; 42. Connecting rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0020] Example

[0021] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 This is a schematic diagram of the structure of the hot melt assembly in this utility model. Figure 3 This is a front view of the hot melt assembly in this utility model.

[0022] like Figures 1 to 3 As shown, this embodiment provides a thermoforming mechanism for processing multi-layer linear medical products, including: a substrate 10, a thermoforming component 20, a mounting base 30, and a lifting component 40.

[0023] like Figures 1 to 3 As shown, the hot melt assembly 20 includes a base plate 21, two guide rods 22, a top plate 23, two limiting members 24, and two heating assemblies. The base plate 21 is disposed on the base plate 10. One end of each of the two guide rods 22 is connected to the base plate 21 and is disposed near the two sides of the base plate 21. The top plate 23 has two through holes, the diameter of which is not less than the diameter of the two guide rods 22, and the distance between the two through holes is equal to the distance between the two guide rods 22, so that the top plate 23 is slidably disposed on the two guide rods 22. The two limiting members 24 are detachably disposed on the other end of the two guide rods 22, and the diameter of the limiting members 24 is greater than the diameter of the through holes. The two heating assemblies are disposed on the opposite walls of the base plate 21 and the top plate 23, respectively. The heating assemblies are used for hot melt shaping and fixing of multi-layer linear medical supplies.

[0024] In this embodiment, the heating assembly includes a heat insulation plate 25, a molding die 26, and a heating rod 27. The heat insulation plate 25 is disposed on the bottom wall of the top plate 23 or the top wall of the bottom plate 21. The molding die 26 is disposed on the heat insulation plate 25. A semi-conical molding groove 28 is formed on the outer wall of the molding die 26 facing away from the heat insulation plate 25. The opening of the molding groove 28 extends to the side wall of the molding die 26. The heating rod 27 is disposed inside the molding die 26, with at least one end of the heating rod 27 located outside the molding die 26. When the two molding dies 26 are fitted together, the molding groove 28 on them forms a complete conical hole. The end of the heating rod 27 located outside the molding die 26 can be connected to an external power source, thereby enabling the molding die 26 to be heated by the heating plate.

[0025] In this embodiment, the outer woven material of the medical supplies is preferably PET, which has a melting point of 255°C to 265°C; the inner core material is preferably PBT, which has a melting point of 220°C to 230°C. Therefore, the heating temperature of the heating rod 27 when heating the molding mold 26 is preferably 230°C to 255°C.

[0026] In this embodiment, each limiting member 24 is provided with a connecting hole, and the inner wall of the connecting hole and the outer wall of the limiting rod near its other end are respectively provided with interlocking internal threads and external threads.

[0027] like Figure 1 As shown, the mounting base 30 includes a mounting section 31 and a limiting section 32. One end of the mounting section 31 is connected to the substrate 10 and is perpendicular to the substrate 10. One end of the limiting section 32 is connected to the mounting section 31 and the other end extends outward from the mounting rod. The other end of the limiting section 32 is located above the top plate 23 and is parallel to the top plate 23. A sliding hole is provided on the other end of the limiting section 32.

[0028] like Figure 1 As shown, the lifting assembly 40 includes a pressure handle 41 and a connecting rod 42. One end of the pressure handle 41 is hinged to the other end of the mounting section 31, and one end of the connecting rod 42 is connected to the pressure handle 41. The other end of the connecting rod 42 is connected to the top plate 23 through a sliding hole. One end of the connecting rod 42 is connected to the middle section of the pressure handle 41, and the height of the connecting rod 42 in conjunction with the hot-melt assembly 20 is greater than the height of the mounting base 30.

[0029] When using this invention to heat-melt and fix multi-layered linear medical supplies, firstly, by pressing the handle 41 in conjunction with the connecting rod 42, the top plate 23 slides on the two guide rods 22, moving away from the bottom plate 21. Then, one end of the medical supply is placed into the shaping groove 28 on the shaping mold 26 on the bottom plate 21. Then, by pressing the handle 41 in conjunction with the connecting rod 42, the top plate 23 slides on the two guide rods 22, moving closer to the bottom plate 21, until the two shaping molds 26 are in contact. Next, the shaping mold 26 is heated by the heating rod 27, thereby heat-melting and fixing the end of the medical supply. During the heat-melting and fixing process, the medical supply can be rotated (when rotating the medical supply, the top plate 23 must be lifted by the lifting component 40) to ensure that one end of the medical supply is fully heat-melted and fixed, forming a conical structure.

[0030] The role and effect of the embodiments

[0031] The thermoforming mechanism for processing multi-layer linear medical supplies according to this utility model aims to thermo-melt and fix multi-layer linear medical supplies composed of a mandrel and braided fabric without introducing external materials through a thermo-melting component. At the same time, the thermo-melting component shapes the ends of the medical supplies into a conical shape, thereby enabling the medical supplies to be better used in treatment, improving the stability of the medical supplies during use, and thus ensuring the practical effect of this utility model.

[0032] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

Claims

1. A thermoforming mechanism for processing multi-layer linear medical supplies, characterized in that, include: A substrate hot-melting assembly includes a base plate, two guide rods, a top plate, two limiting members, and two heating elements. The base plate is disposed on the substrate. One end of each of the two guide rods is connected to the base plate and is respectively disposed near the two sides of the base plate. The top plate has two through holes, the diameter of which is not less than the diameter of the two guide rods, and the distance between the two through holes is equal to the distance between the two guide rods, allowing the top plate to be slidably disposed on the two guide rods. The two limiting members are detachably disposed on the other ends of the two guide rods, and the diameter of the limiting members is greater than the diameter of the through holes. The two heating elements are respectively disposed on the base plate and the guide rods. On the opposite wall of the top plate, the heating assembly is used for hot-melt shaping and fixing of multi-layered linear medical supplies. The mounting base includes a mounting section and a limiting section. One end of the mounting section is connected to the base plate and is perpendicular to the base plate. One end of the limiting section is connected to the mounting section, and the other end extends outward from the mounting section. The other end of the limiting section is located above the top plate and parallel to the top plate. A sliding hole is provided on the other end of the limiting section. The lifting assembly includes a pressure handle and a connecting rod. One end of the pressure handle is hinged to the other end of the mounting section. One end of the connecting rod is connected to the pressure handle, and the other end of the connecting rod is connected to the top plate through the sliding hole.

2. The thermoforming mechanism for processing multi-layer linear medical products according to claim 1, characterized in that: wherein, Each of the limiting members is provided with a connecting hole, and the inner wall of the connecting hole and the outer wall of the guide rod near its other end are respectively provided with interlocking internal threads and external threads.

3. The thermoforming mechanism for processing multi-layer linear medical products according to claim 1, characterized in that: in, The heating assembly includes a heat insulation plate, a molding die, and a heating rod. The heat insulation plate is disposed on the bottom wall of the top plate or the top wall of the bottom plate. The molding die is disposed on the heat insulation plate. A semi-conical molding groove is formed on the outer wall of the molding die facing away from the heat insulation plate. The opening of the molding groove extends to the side wall of the molding die. The heating rod is disposed inside the molding die, and at least one end of the heating rod is located outside the molding die.