Automatic winding device and method for medical embolism spring ring with complex structure

Abstract

The invention relates to the technical field of winding equipment, in particular to an automatic winding device for a medical embolism spring ring with a complex structure. The vertical linear motion platform comprises a vertical motion motor, a vertical transmission mechanism and a spool assembly, and the vertical motion motor drives the spool assembly to move in the vertical direction through the vertical transmission mechanism; the horizontal movement platform comprises a preset rail, a horizontal movement motor, a horizontal transmission mechanism and a three-dimensional mold, the section of the rail is of a dovetail groove structure, the mold is installed on a mold supporting rod, the supporting rod is fixed to the base, and the horizontal movement motor drives the spool assembly to move in the direction of the preset rail through the horizontal transmission mechanism; and the bobbin assembly comprises a bobbin and a metal wire penetrating spring, the bobbin is arranged on the vertical linear motion platform, and the metal wire penetrating spring is formed by penetrating a metal wire through a hollow spring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of winding equipment, in particular to an automatic winding device and method for complex medical embolization spring coils. BACKGROUND

[0002] In the field of interventional therapy, embolization spring coils are widely used as a key medical device in the treatment of vascular diseases such as intracranial aneurysms and arteriovenous malformations. Embolization spring coils are essentially a secondary spring structure. Based on the primary spring, through configuration design, winding, heat treatment and other processes, a secondary spring structure with specific geometric shape and mechanical properties is finally formed. Its main function is to promote thrombosis by filling the vascular lesion site, thereby blocking abnormal blood flow to achieve the treatment purpose.

[0003] With the continuous progress of medical technology, the requirements for embolization spring coils in clinical practice are increasing, and complex configuration spring coils have emerged as the times require. Clinical research has found that with the deepening of vascular interventional therapy to complex anatomical structures (such as wide-necked aneurysms and bifurcation lesions), single spiral configuration spring coils have inherent defects such as insufficient filling stability, incomplete aneurysm neck coverage and high long-term recurrence rate. Therefore, embolization spring coils with complex spatial configurations (such as clover-shaped, 8-shaped and spherical structures) have gradually become the focus of research. For different lesion sites, selecting appropriate complex configuration spring coils can significantly reduce spring coil compression rate and lesion recurrence risk by enhancing the anchoring effect with the aneurysm wall and optimizing the filling density distribution. For example, in the treatment of wide-necked aneurysms, complex configuration spring coils can be stably anchored at the aneurysm neck through special shape design, preventing the spring coil from coming out, and providing better support structure for subsequent embolization materials.

[0004] However, the production of complex configuration spring coils currently mainly relies on manual winding. The manual winding process requires operators to undergo professional training, and the winding process is tedious, time-consuming and labor-intensive, which limits the production efficiency of large quantities of products and makes it difficult to meet the growing demand in clinical practice.

[0005] In addition, manual winding is greatly affected by human factors. Differences in operation by different personnel can lead to deviations in size accuracy, shape consistency and other aspects of the produced spring coils, making it difficult to ensure the high standardization of products. Such inconsistency in product quality may cause many problems in clinical application, such as unstable embolization effect and increased surgical risk. Therefore, developing a method and device that can realize the automatic winding of complex medical embolization spring coils is of great significance for improving production efficiency and providing high-quality products for clinical practice. SUMMARY

[0006] This invention provides an automated winding device and method for complex medical embolization coils, effectively reducing labor costs, shortening production time, and improving production efficiency. Furthermore, thanks to the precise control of the automated system, it can improve product standardization to a certain extent, meeting the clinical demand for uniform quality of embolization coils.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] An automated winding device for medical embolization coils with complex configurations, characterized by comprising:

[0009] a base for supporting the components of the device;

[0010] A vertical linear motion platform, comprising a vertical motion motor, a vertical transmission mechanism, and a bobbin assembly, wherein the vertical motion motor drives the bobbin assembly to move in a vertical direction through the vertical transmission mechanism;

[0011] A horizontal motion platform includes a preset track, a horizontal motion motor, a horizontal transmission mechanism, and a three-dimensional mold. The track cross-section is a dovetail groove structure. The mold is mounted on a mold support rod, which is fixed to a base. The horizontal motion motor drives the spool assembly to move along the preset track direction through the horizontal transmission mechanism. The preset track movement direction is perpendicular to the vertical movement direction of the spool assembly.

[0012] The bobbin assembly comprises a bobbin and a metal wire through-core spring. The bobbin is arranged on a vertical linear motion platform. The metal wire through-core spring is composed of a spring with a metal wire passing through a hollow portion.

[0013] In a specific embodiment, the three-dimensional mold includes a three-dimensional spherical mold and a mold support rod; the three-dimensional spherical mold is provided with a trumpet-shaped protrusion structure, and the root area of ​​each protrusion structure forms a position for spring winding, and when the spool is wound around the root of the protrusion structure, a circular trajectory can be formed; a detachable button is provided on the mold support rod.

[0014] In a specific embodiment, the three-dimensional mold includes but is not limited to diamond-shaped, tower-shaped, and cylindrical molds.

[0015] In a specific embodiment, the preset track includes but is not limited to a circular, figure-8, and clover-shaped track.

[0016] In a specific embodiment, the spool assembly further includes a winding spindle and a tension control mechanism, the spindle has an outer diameter of 20-100 mm, a winding width of 10-50 mm, and a built-in tension sensor.

[0017] In a specific embodiment, a multi-station guide groove is designed on the three-dimensional mold as needed, with the number of stations being 1-30.

[0018] An automated winding method for a medical embolization spring coil with a complex configuration includes the following steps: S1. selecting a mold suitable for the desired spring coil shape and mounting it on a mold support rod, which is then secured to a base;

[0019] S2. Pass the wire through the hollow spring and secure it securely to the spool. Then, install the spool in the designated position on the vertical linear motion platform.

[0020] S3. Check whether the horizontal motion track of the horizontal motion platform, the linear track of the vertical linear motion platform, and each transmission mechanism are installed correctly and operate flexibly;

[0021] S4. Input the winding program through the control hardware of the control system. For the horizontal motion motor, set the motion trajectory and speed parameters of the spool on the horizontal preset track; for the vertical motion motor, set the vertical motion range, speed and coordinated relationship of the spool with the horizontal motion;

[0022] S5. For the vertical motion motor, set the vertical motion range, motion speed, and coordination parameters of the spool with the horizontal motion;

[0023] S6. Start the control system, and the control circuit transmits the instructions issued by the control hardware to the horizontal motion track motor and the vertical motor;

[0024] S7. The horizontal motion motor starts working, driving the spool along the horizontal motion track according to the preset trajectory through the transmission mechanism. At the same time, the vertical motion motor drives the spool to perform corresponding linear motion in the vertical direction according to the set parameters through the transmission mechanism.

[0025] S8. During the winding process, the wire is guided by the die guide grooves and gradually wound around the die as the spool moves, forming a spring coil with a specific complex configuration.

[0026] S9. When the spool completes the preset winding program, the control system sends a command to stop the horizontal and vertical motion motors;

[0027] S10. After the winding is completed, the entire mold is taken out and a subsequent heat treatment process is performed.

[0028] The beneficial effects of the present invention are mainly reflected in the following aspects:

[0029] 1. The automated winding method significantly improves production speed, reduces manual operation time and labor intensity, thereby greatly improving overall production efficiency. This efficiency is particularly important for meeting the large demand for embolization coils in the medical field.

[0030] 2. The automated equipment can precisely control the winding process, ensuring that the shape and size of each coil meet the design requirements. This high precision not only improves product quality but also enhances product consistency, providing a guarantee for the reliability of medical applications.

[0031] 3. Through the automated device, errors commonly found in manual operations are effectively controlled, significantly reducing the defect rate. This is particularly critical for medical embolization coils, as any minor defects can affect their safety and effectiveness in treatment.

[0032] 4. The automated equipment can operate stably for a long time, avoiding unstable factors caused by improper operation or fatigue in manual operations. This stability ensures the predictability of production, reducing fluctuations in the production process.

[0033] 5. This technical solution is particularly designed for complex configuration coils, enabling precise production of these special shapes. This meets the demand for high-precision, high-performance products in the medical field, such as high-complexity medical devices required in embolization therapy, providing reliable support for precise treatment.

[0034] 6. Although the initial investment in automated equipment is high, in the long run, it achieves significant overall production cost reduction by reducing labor costs, improving production efficiency, and reducing defect rates. This cost-effectiveness gives it a significant advantage in large-scale production. BRIEF DESCRIPTION OF DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0036] Figure 1 is a winding diagram of a three-dimensional spherical spring in the present application;

[0037] Figure 2 is a winding diagram of a tower-shaped spring;

[0038] Figure 3 is a winding diagram of a diamond-shaped spring;

[0039] Figure 4 is a winding diagram of an 8-shaped spring;

[0040] Figure 5 This is a schematic diagram of the winding of a clover-shaped spring;

[0041] In the attached figure: 1-vertical motion motor; 2-horizontal motion motor; 3-base; 4-horizontal motion platform; 5-mold support rod; 6-three-dimensional mold; 7-vertical linear motion platform; 8-spool; 9-metal wire; 10-control system. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solutions in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this utility, not all of the embodiments. Based on the embodiment of this utility, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility.

[0043] Example 1

[0044] The present invention realizes a process for automatically winding medical embolization spring coils with complex configurations, and adjusts the relative position of the bobbin movement and the mold so that a spring coil with a specific shape can be wound, which can effectively improve the efficiency of spring coil winding.

[0045] To achieve this process, the present invention designs an automated winding device for medical embolization spring coils with complex configurations. The automated winding device includes a base 3, a horizontal motion platform 4, a vertical linear motion platform 7, a bobbin assembly, a mold assembly, and a control system 10.

[0046] The horizontal motion platform includes a preset horizontal motion track, a horizontal motion motor, and a transmission mechanism. The preset horizontal motion track is fixed to the base. The track cross-section is a dovetail groove structure with a width of 8-15mm. The track shape can be designed to form complex planar curves such as circular, figure-eight, and cloverleaf shapes according to clinical needs. The circular track diameter ranges from 30-500mm, the major axis size of the figure-eight track is 50-800mm, and the circumscribed circle diameter of the cloverleaf track is 300-600mm.

[0047] The horizontal motion motor 2 has an output speed range of 5-2000rpm and drives the spool assembly along the track through a gear transmission mechanism or a synchronous belt transmission mechanism (bandwidth 6-15mm). The horizontal movement speed of the spool can be programmably controlled at 5-200mm / s.

[0048] The vertical linear motion platform 7 includes a linear track, a vertical motion motor 1, and a transmission mechanism. The platform can realize the linear motion of the spool in the vertical direction. The vertical motion motor 1 drives the spool to move on the linear track through the transmission mechanism.

[0049] The transmission mechanism includes a lead screw, a guide rail, etc., for converting the rotary motion of the motor into the vertical motion of the spool. The linear track is 100-300 mm long, the positioning accuracy is ±0.01 mm, and the lifting speed can be adjusted in the range of 5-100 mm / s, forming a three-dimensional compound motion trajectory with the horizontal motion.

[0050] The spool assembly includes a spool 8 and a wire-through spring. The spool 8 is installed on the vertical linear motion platform, and the wire-through spring is composed of a metal wire 9 passing through a hollow spring. During the winding process, the wire is fixed and the force is mainly borne by the metal wire, avoiding damage to the spring due to excessive stretching.

[0051] The spool assembly also includes a winding spindle and a tension control mechanism. The outer diameter of the spindle is adjustable in the range of 20-100 mm, and the winding width is 10-50 mm. The built-in tension sensor detects the wire tension in real time and controls it within the range of 0.1-5 N. The wire diameter is 0.03-0.20 mm, which is selected according to the diameter of the hollow spring.

[0052] The mold assembly includes a replaceable mold and a detachable mold support rod. The mold is installed on the mold support rod, and the support rod is fixed on the base. The mold is designed with multiple guide slots according to needs, with 1-30 workstations for guiding the wire to form a specific complex configuration. The mold support rod is used to fix the mold and ensure its stability during winding.

[0053] The control system is composed of control hardware and control circuit. The control hardware is connected to the motor through the control circuit and can control the movement of the motor according to the established program. The control circuit is used to realize the signal transmission and power supply between the control hardware and the motor.

[0054] As shown in Figure 1 A device for manufacturing a three-dimensional spherical complex configuration medical embolism spring, including a base 3, a horizontal motion platform 4, a vertical linear motion platform 7, a spool 8, a three-dimensional mold 6, and a control system 10.

[0055] The horizontal motion platform 4 includes a circular track, a horizontal motion motor 2, and a transmission mechanism. The circular track is arranged around the three-dimensional spherical mold. The control system 10 controls the horizontal motion motor 2. The motor drives the spool assembly through the transmission mechanism, making the spool continuously move clockwise or counterclockwise along the circular track until the three-dimensional spherical configuration spring is wound, realizing horizontal winding.

[0056] The vertical linear motion platform 7 comprises a linear track, a vertical motion motor 1 and a transmission mechanism. The linear track is perpendicular to the horizontal circular track and is matched with the three-dimensional spherical mold. The control system controls the vertical motion motor. The motor drives the spool assembly through the transmission mechanism, so that the spool moves up and down in the vertical direction corresponding to the three-dimensional spherical mold, and cooperates with the horizontal motion to complete the winding in the vertical direction. In the above manner, the free movement of the spool relative to the mold in the horizontal and vertical directions can be set to complete the winding of the three-dimensional spherical configuration spring on the basis of the three-dimensional spherical mold.

[0057] The spool assembly comprises a spool 8 and a wire through spring. The spool is installed on the vertical linear motion platform, and the wire passes through the hollow spring and is fixed on the spool.

[0058] The mold assembly comprises a three-dimensional spherical mold and a mold support rod 5. The three-dimensional spherical mold is provided with a plurality of horn-shaped protruding structures. The root regions of the protruding structures form parts for winding the spring. When the spool is wound at the root of the protruding structure, a circular track is formed, which serves to fix the spring and wind the three-dimensional spherical spring with a geometric shape. The mold support rod 5 is provided with a detachable button. After the mold is wound, it can be detached from the mold support rod and replaced with a new mold.

[0059] Through the control system, the vertical motion motor 1 and the horizontal motion motor 2, the program of the complex geometric configuration to be wound is set, the wire is fixed on the support rod, the spring winding program is started, the spool starts to wind according to the set program, and the winding is stopped after completion.

[0060] Embodiment two

[0061] In an optional embodiment, the spool is set to move along the mold and track matched with the tower-shaped spring through the horizontal motion motor, and the spool is set to be helically raised during the horizontal motion through the vertical motion motor, so as to wind the tower-shaped spring. Figure 2 ).

[0062] Embodiment three

[0063] In an optional embodiment, the spool is set to move along the mold and track matched with the diamond-shaped spring through the horizontal motion motor, and the spool is set to be helically raised during the horizontal motion through the vertical motion motor, so as to wind the diamond-shaped spring. Figure 3 ).

[0064] Embodiment four

[0065] In an optional embodiment, the spool is set to be parallel to the groove of the 8-shaped mold through the vertical motion motor, and the spool is set to move along the 8-shaped track through the horizontal motion motor, so as to wind the 8-shaped spring. Figure 4 ​

[0066] Example 5

[0067] In an optional embodiment, the bobbin is set to be parallel to the groove of the clover-shaped mold by a vertical motion motor, and the bobbin is set to move along the clover-shaped track by a horizontal motion motor to wind the clover-shaped spring ( Figure 5 ).

[0068] Working principle and process of the present invention:

[0069] The winding principle of this invention is based on precisely controlling the coordinated motion of various components. By adjusting the relative positions of the bobbin and die, the wire is wound along a predetermined trajectory, thereby forming a spring coil of a specific shape. The horizontal motion platform, vertical linear motion platform, bobbin assembly, die assembly, and control system work together to achieve the automated winding of spring coils with complex configurations.

[0070] S1. Select a mold that matches the desired coil shape and install it on the mold support rod. Then, secure the mold support rod to the base. For example, if you want to wind a 3D spherical coil, choose a 3D spherical mold with a trumpet-shaped protrusion. If you want to wind a figure-eight coil, install the corresponding figure-eight mold.

[0071] S2. Pass the wire through the hollow spring and secure it to the spool. Then, install the spool to the designated position on the vertical linear motion platform.

[0072] S3. Check the horizontal motion track of the horizontal motion platform, the linear track of the vertical linear motion platform, and all transmission mechanisms to ensure they are correctly installed and operating smoothly. Also, ensure that the connection between the control system and the motor is secure and that all electrical circuits are fault-free.

[0073] S4. Input the winding program through the control hardware of the control system. For the horizontal motion motor, set the motion trajectory, speed and other parameters of the bobbin on the horizontal track (such as circular, figure 8, clover shape); for the vertical motion motor, set the vertical motion range, speed and coordinated relationship of the bobbin with the horizontal motion.

[0074] S5. For the vertical motion motor, set the spool's vertical motion range, speed, and coordination with horizontal motion. For example, set the spool to rise vertically from the bottom of the mold to the top at a constant speed. During horizontal winding, match the vertical and horizontal speeds to achieve a specific spiral winding effect.

[0075] S6. Start the control system, and the control circuit transmits the instructions issued by the control hardware to the horizontal motion track motor and the vertical motor.

[0076] S7. The horizontal movement motor starts to work, and drives the bobbin to move on the horizontal movement track according to the preset track through the transmission mechanism. At the same time, the vertical movement motor also drives the bobbin to move in the vertical direction according to the set parameters through the transmission mechanism.

[0077] S8. During the winding process, the metal wire is gradually wound on the mold under the guidance of the mold guide groove along with the movement of the bobbin, and a spring ring with a specific complex configuration is formed. Due to the design of the metal wire, the metal wire can stably bear the tension in the winding process, ensuring the smooth progress of the winding process.

[0078] S9. When the bobbin completes the preset winding procedure, the control system sends a command to stop the horizontal movement motor and the vertical movement motor.

[0079] S10. After the winding is completed, the entire mold is taken out, and the subsequent heat treatment process is performed. If it is necessary to continue to wind other spring rings, the mold can be replaced and the winding parameters can be adjusted according to new requirements, and the above winding process can be repeated.

[0080] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated winding device for medical embolization coils with complex configurations, characterized in that: include: a base for supporting the components of the device; A vertical linear motion platform, comprising a vertical motion motor, a vertical transmission mechanism, and a bobbin assembly, wherein the vertical motion motor drives the bobbin assembly to move in a vertical direction through the vertical transmission mechanism; A horizontal motion platform includes a preset track, a horizontal motion motor, a horizontal transmission mechanism, and a three-dimensional mold. The track cross-section is a dovetail groove structure. The mold is mounted on a mold support rod, which is fixed to a base. The horizontal motion motor drives the spool assembly to move along the preset track direction through the horizontal transmission mechanism. The preset track movement direction is perpendicular to the vertical movement direction of the spool assembly. The bobbin assembly comprises a bobbin and a metal wire through-core spring. The bobbin is arranged on a vertical linear motion platform. The metal wire through-core spring is composed of a spring with a metal wire passing through a hollow portion.

2. The device according to claim 1, characterized in that The three-dimensional mold includes a three-dimensional spherical mold and a mold support rod; the three-dimensional spherical mold is provided with a trumpet-shaped protrusion structure, and the root area of ​​each protrusion structure forms a position for spring winding. When the spool is wound around the root of the protrusion structure, a circular trajectory can be formed; a detachable button is provided on the mold support rod.

3. The device according to claim 1, characterized in that The three-dimensional molds include but are not limited to diamond-shaped, tower-shaped, and cylindrical molds.

4. The device according to claim 1, characterized in that The preset tracks include but are not limited to circular, figure-8, and clover-shaped tracks.

5. The device according to claim 4, characterized in that The spool assembly also includes a winding spindle and a tension control mechanism. The spindle has an outer diameter of 20-100 mm, a winding width of 10-50 mm, and a built-in tension sensor.

6. The device according to claim 1, characterized in that The three-dimensional mold is designed with multi-station guide grooves according to needs, with the number of stations being 1-30.

7. A winding method using the device according to any one of claims 1 to 6, characterized in that: The steps include: S1. Select a mold that matches the desired coil shape and install it on the mold support rod, which is then fixed to the base. S2. Pass the wire through the hollow spring and secure it to the spool. Then, install the spool in the designated position on the vertical linear motion platform. S3. Check whether the horizontal motion track of the horizontal motion platform, the linear track of the vertical linear motion platform, and each transmission mechanism are installed correctly and operate flexibly; S4. Input the winding program through the control hardware of the control system. For the horizontal motion motor, set the motion trajectory and speed parameters of the spool on the horizontal preset track; for the vertical motion motor, set the vertical motion range, speed and coordinated relationship of the spool with the horizontal motion; S5. For the vertical motion motor, set the vertical motion range, motion speed, and coordination parameters of the spool with the horizontal motion; S6. Start the control system, and the control circuit transmits the instructions issued by the control hardware to the horizontal motion track motor and the vertical motor; S7. The horizontal motion motor starts working, driving the spool along the horizontal motion track according to the preset trajectory through the transmission mechanism. At the same time, the vertical motion motor drives the spool to perform corresponding linear motion in the vertical direction according to the set parameters through the transmission mechanism. S8. During the winding process, the wire is guided by the die guide grooves and gradually wound around the die as the spool moves, forming a spring coil with a specific complex configuration. S9. When the spool completes the preset winding program, the control system sends a command to stop the horizontal and vertical motion motors; S10. After the winding is completed, the entire mold is taken out and a subsequent heat treatment process is performed.

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