A medical catheter production apparatus

Abstract

This utility model discloses a medical catheter manufacturing equipment, including an extruder, a cooling and shaping component, a traction component, and a lifting worktable. The cooling and shaping component and the traction component are disposed on the upper surface of the lifting worktable. The extruder is provided with at least two vertically arranged dies. The lifting worktable rises or falls to align the cooling and shaping component with the different dies. The medical catheter manufacturing equipment of this utility model, with its extruder equipped with dies of different specifications, allows for rapid switching between different specifications of medical catheters during extrusion without disassembling the dies, saving time and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical catheter technology, and more specifically, to a medical catheter manufacturing device. Background Technology

[0002] A medical catheter is a device used for medical diagnosis, treatment, or surgical procedures. It is a long, flexible tubular structure that can be inserted into the body's natural cavities or into specific parts of the body through puncture or other means.

[0003] Medical catheters are made of silicone, polymers, or natural rubber. They are extruded through a die using an extruder, cooled and set before further processing. Current medical catheter extruders require die changes when producing catheters of different sizes, wasting time and impacting production efficiency.

[0004] Therefore, it is necessary to propose a medical catheter manufacturing device to solve the problems existing in the prior art. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To solve the above problems, this utility model provides a medical catheter production equipment, including an extruder, a cooling and shaping component, a traction component, and a lifting worktable. The cooling and shaping component and the traction component are arranged on the upper surface of the lifting worktable. The extruder is provided with at least two molds arranged vertically. The lifting worktable rises or falls to align the cooling and shaping component with the different molds.

[0007] Preferably, it also includes a laser diameter measuring instrument, which is installed on the top surface of the lifting worktable and located between the cooling and shaping assembly and the traction assembly.

[0008] Preferably, the lifting worktable includes a base, a telescopic driver is fixedly mounted on the upper surface of the base, a worktable plate is fixedly mounted on the telescopic rod of the telescopic driver, and a cooling and shaping component and a traction component are spaced apart on the worktable plate.

[0009] Preferably, at least three guide posts are provided at intervals on the top surface of the base and the telescopic actuator, and guide sleeves are provided on the bottom surface of the worktable at positions corresponding to the guide posts, with the guide posts slidably disposed within the guide sleeves.

[0010] Preferably, a spring is fitted around the outside of the guide sleeve, with the upper end of the spring contacting the bottom surface of the worktable and the lower end of the spring contacting the top surface of the base.

[0011] Preferably, the spring is a compression spring.

[0012] Preferably, the telescopic actuator is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0013] Preferably, a connecting plate is fixedly installed at the top of the telescopic rod, and four through holes are formed in a rectangular array on the connecting plate. Threaded holes are formed on the bottom surface of the worktable at positions opposite to the through holes.

[0014] Preferably, four legs are arranged in a rectangular array on the bottom surface of the base.

[0015] Preferably, the outer circumferential surface of the guide post and the inner wall of the guide sleeve are both coated with polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE).

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] The medical catheter production equipment described in this utility model has an extruder equipped with molds of different specifications. When extruding medical catheters, it can quickly switch between different specifications of medical catheters without disassembling the molds, saving time and improving production efficiency.

[0018] The medical catheter manufacturing equipment described in this utility model, other advantages, objectives and features of this utility model will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the medical catheter manufacturing equipment disclosed in this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the lifting worktable disclosed in this utility model;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of the lifting worktable disclosed in this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting plate disclosed in this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0025] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0026] like Figures 1-4 As shown, a medical catheter manufacturing device includes an extruder 1, a cooling and shaping component 2, a traction component 3, and a lifting worktable 4. The cooling and shaping component 2 and the traction component 3 are disposed on the upper surface of the lifting worktable 4. At least two molds 5 arranged vertically are disposed on the extruder 1. The lifting worktable 4 rises or falls to align the cooling and shaping component 2 with different molds 5.

[0027] Furthermore, it also includes a laser diameter measuring instrument, which is installed on the top surface of the lifting worktable 4 and located between the cooling and shaping component 2 and the traction component 3.

[0028] Furthermore, the lifting worktable 4 includes a base 6, a telescopic driver 7 is fixedly installed on the upper surface of the base 6, a worktable plate 9 is fixedly installed on the telescopic rod 8 of the telescopic driver 7, and a cooling and shaping component 2 and a traction component 3 are spaced apart on the worktable plate 9.

[0029] Furthermore, at least three guide posts 10 are provided at intervals on the top surface of the base 6 and the telescopic driver 7, and guide sleeves 11 are provided on the bottom surface of the worktable 9 at positions corresponding to the guide posts 10, with the guide posts 10 slidably disposed within the guide sleeves 11.

[0030] Furthermore, a spring 12 is fitted outside the guide sleeve 11, with the upper end of the spring 12 contacting the bottom surface of the worktable 9 and the lower end of the spring 12 contacting the top surface of the base 6.

[0031] Furthermore, spring 12 is a compression spring.

[0032] Furthermore, the telescopic actuator 7 is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0033] Furthermore, a connecting plate 13 is fixedly installed at the top of the telescopic rod 8, and four through holes 14 are formed in a rectangular array on the connecting plate 13. Threaded holes are formed on the bottom surface of the workbench 9 at positions opposite to the through holes 14.

[0034] Furthermore, four legs 15 are arranged in a rectangular array on the bottom surface of the base 6.

[0035] Furthermore, a polyetheretherketone coating or a polytetrafluoroethylene coating is provided on the outer circumferential surface of the guide post 10 and the inner wall of the guide sleeve 11.

[0036] The working principle of the above technical solution:

[0037] When using an extruder to produce conduits, the dimensions of the inner and outer dies limit the diameter of the extruded conduit. Although changing the traction speed of the traction assembly can change the diameter of the extruded conduit, if the diameter differs significantly from the die size, changing the traction speed will cause the conduit to break or have uneven wall thickness during traction. The quality of the produced conduit will be substandard, requiring die replacement. Replacing a single-die extruder requires stopping the machine to disassemble the die, replacing both the inner and outer dies separately before resuming extrusion, which wastes time and affects production efficiency.

[0038] A medical catheter manufacturing device includes an extruder 1, a cooling and shaping assembly 2, a traction assembly 3, and a lifting worktable 4. The cooling and shaping assembly 2 and the traction assembly 3 are disposed on the upper surface of the lifting worktable 4. The extruder 1 is provided with at least two vertically arranged dies 5. The lifting worktable 4 rises or falls to align the cooling and shaping assembly 2 with the different dies 5. The extrusion process involves multiple dies 5, each with a different size. Switching between dies is achieved using control valves to control the connection between the extruder 1 and the different dies 5, which is existing technology and will not be elaborated upon here. The lifting worktable 4 aligns the cooling and shaping assembly 2 and the traction assembly 3 with the dies 5, thus completing the traction and cooling of the extruded catheter.

[0039] The cooling and shaping component 2 and the traction component 3 are existing technologies and will not be described in detail here.

[0040] On the top surface of the lifting worktable 4, a laser diameter measuring instrument is installed between the cooling and shaping component 2 and the traction component 3 to detect the outer diameter of the cooled medical catheter.

[0041] The lifting worktable 4 includes a base 6, a telescopic driver 7 is fixedly installed on the upper surface of the base 6, a worktable plate 9 is fixedly installed on the telescopic rod 8 of the telescopic driver 7, and a cooling and shaping component 2 and a traction component 3 are spaced apart on the worktable plate 9. When the height of the lifting worktable 4 needs to be adjusted, the telescopic driver 7 is activated to raise or lower the telescopic rod 8, thereby raising or lowering the worktable plate 9.

[0042] A connecting plate 13 is fixedly installed at the top of the telescopic rod 8. Four through holes 14 are formed in a rectangular array on the connecting plate 13. Threaded holes are formed on the bottom surface of the worktable 9 at positions opposite to the through holes 14. When installing the worktable 9, bolts are passed through the through holes 14 and screwed into the threaded holes on the bottom surface of the worktable 9 to fix the connecting plate to the worktable 9.

[0043] At least three guide posts 10 are spaced apart from the telescopic driver 7 on the top surface of the base 6. Guide sleeves 11 are provided on the bottom surface of the worktable 9 at positions corresponding to the guide posts 10. The guide posts 10 are slidably disposed in the guide sleeves 11 and are perpendicular to the base 6.

[0044] To prevent the worktable 9 from tilting, four guide posts 10 are spaced apart on the top surface of the base 6 and the telescopic driver 7. Guide sleeves 11 are provided on the bottom surface of the worktable 9 at positions corresponding to the guide posts 10. The guide posts 10 are slidably disposed in the guide sleeves 11. The guide posts 10 and guide sleeves 11 play a guiding role when the worktable 9 rises or falls, allowing the worktable to move vertically up and down, thereby keeping the worktable 9 level.

[0045] To further improve the stability of the worktable 9 when it moves up and down, a spring 12 is fitted on the outside of the guide sleeve 11. The upper end of the spring 12 contacts the bottom surface of the worktable 9, and the lower end of the spring 12 contacts the top surface of the base 6. When the worktable 9 rises or falls, the four corners are supported by the elastic force of the spring 12 to prevent the worktable 9 from tilting. This prevents the guide column 10 and the guide sleeve 11 from getting stuck due to the tilting of the worktable 9. At the same time, the spring 12 also plays the role of supporting the worktable 9.

[0046] The telescopic actuator 7 can be a hydraulic cylinder, pneumatic cylinder, or electric cylinder, which can be selected according to different needs.

[0047] Four legs 15 are arranged in a rectangular array on the bottom surface of the base 6.

[0048] The outer circumferential surface of the guide post 10 and the inner wall of the guide sleeve 11 are both coated with polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE). The guide post 10 and the guide sleeve 11 guide the worktable 9 when it rises or falls. Friction will occur between the guide post 10 and the guide sleeve 11. PEEK and PTFE have high strength and wear resistance, which can improve the service life of the guide post 10 and the guide sleeve 11. Moreover, PTFE has a low coefficient of friction and good self-lubricating properties, which can reduce the friction between the guide post 10 and the guide sleeve 11.

[0049] The beneficial effects of the above technical solution are as follows:

[0050] The medical catheter production equipment described in this utility model has an extruder equipped with molds of different specifications. When extruding medical catheters, it can quickly switch between different specifications of medical catheters without disassembling the molds, saving time and improving production efficiency.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A medical catheter manufacturing device, characterized in that, It includes an extruder (1), a cooling and shaping component (2), a traction component (3), and a lifting worktable (4). The cooling and shaping component (2) and the traction component (3) are set on the top surface of the lifting worktable (4). At least two molds (5) are arranged vertically on the extruder (1). The lifting worktable (4) rises or falls to align the cooling and shaping component (2) with different molds (5).

2. The medical catheter manufacturing equipment according to claim 1, characterized in that, It also includes a laser diameter measuring instrument, which is set on the top surface of the lifting worktable (4) and located between the cooling and shaping component (2) and the traction component (3).

3. The medical catheter manufacturing equipment according to claim 2, characterized in that, The lifting worktable (4) includes a base (6), a telescopic driver (7) is fixedly installed on the upper surface of the base (6), a worktable plate (9) is fixedly installed on the telescopic rod (8) of the telescopic driver (7), and a cooling and shaping component (2) and a traction component (3) are spaced apart on the worktable plate (9).

4. The medical catheter manufacturing equipment according to claim 3, characterized in that, At least three guide posts (10) are spaced apart from the telescopic driver (7) on the top surface of the base (6), and guide sleeves (11) are provided on the bottom surface of the worktable (9) at positions corresponding to the guide posts (10). The guide posts (10) are slidably disposed in the guide sleeves (11).

5. The medical catheter manufacturing equipment according to claim 4, characterized in that, A spring (12) is fitted on the outside of the guide sleeve (11). The upper end of the spring (12) contacts the bottom surface of the worktable (9), and the lower end of the spring (12) contacts the top surface of the base (6).

6. The medical catheter manufacturing equipment according to claim 5, characterized in that, Spring (12) is a compression spring.

7. The medical catheter manufacturing equipment according to claim 3, characterized in that, The telescopic actuator (7) is a hydraulic cylinder, pneumatic cylinder, or electric cylinder.

8. The medical catheter manufacturing equipment according to claim 3, characterized in that, A connecting plate (13) is fixedly installed at the top of the telescopic rod (8). Four through holes (14) are opened in a rectangular array on the connecting plate (13). Threaded holes are opened on the bottom surface of the workbench (9) at positions opposite to the through holes (14).

9. The medical catheter manufacturing equipment according to claim 3, characterized in that, Four legs (15) are arranged in a rectangular array on the bottom surface of the base (6).

10. The medical catheter manufacturing equipment according to claim 4, characterized in that, The outer circumferential surface of the guide post (10) and the inner wall of the guide sleeve (11) are both coated with polyether ether ketone or polytetrafluoroethylene.

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