Coil guide wire coating feeding jig

CN224926425UActive Publication Date: 2026-11-03BESTFU (CHANGSHU) BIOMATERIALS CO LTD
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Patent Information

Application Number
CN202522116945.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-11-03
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

In existing technologies, improper clamping and fixing of the guide wire leads to problems such as easy detachment of the guide wire in the coil, obstruction of rotation, inability to directional limit, and difficulty in batch processing.

Method used

The design employs a synergistic approach of limiting and suspension components. The limiting component ensures the verticality of the guide wire through a limiting plate or elastic clamping element, while the suspension component uses a ram's horn suspension frame structure. The bottom protective structure prevents slippage through the ram's horn frame and retaining elements, thus enabling the suspension and smooth rotation of a large number of guide wires.

Benefits of technology

It ensures uniform coating and operational stability, prevents guide wire from falling off or getting stuck during rotation, improves safety and reliability, and enables simultaneous suspension and feeding of large batches of guide wires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a coiled tube guide wire coating feeding jig, which effectively solves the problems of easy falling off of a guide wire due to loose clamping, hindering rotation due to tight clamping, inability to directional positioning and batch processing difficulty in the prior art, the limiting assembly can accurately ensure the perpendicularity of the guide wire in the conveying process, avoids direction deviation, ensures coating uniformity and operation stability, the suspension assembly adopts a horn-shaped suspension bracket structure, the width of the suspension areas on the two sides can accommodate the suspension of multiple groups of coiled tube guide wires, simultaneous suspension and smooth rotation feeding of a large number of guide wires are realized, clamping is not needed, and the problems of falling off or rotation jam caused by improper clamping force are fundamentally eliminated, the protection structure at the bottom effectively lifts and blocks the coiled tube guide wire through the horn-shaped bracket and the blocking piece, accidental sliding or collision of the coiled tube guide wire in the rotating process is prevented, and the safety and reliability are improved.
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Description

Technical Field

[0001] This invention relates to a coiled guide wire coating and feeding fixture, belonging to the field of medical device technology. Background Technology

[0002] Guidewires are commonly used interventional devices in the medical field, reaching the target site by inserting into the body's lumens. The surface of the guidewire is uniformly coated with a special coating solution, allowing it to integrate with the body's environment. Before leaving the factory, the guidewire undergoes dipping and curing of the coating solution in a coating and curing device, thus forming the finished guidewire.

[0003] During the coating and curing process, the guide wire needs to be fed slowly in a specified direction for coating. In the existing technology, the guide wire is basically stored in a coil shape and is held and fixed by a clamp. If the clamp is too loose, the coil guide wire is easy to fall off. If the clamp is too tight, it is not conducive to the rotation of the coil guide wire for conveying the guide wire. Furthermore, it is impossible to limit the conveying direction of the guide wire, and it is difficult to convey a large number of guide wires. Utility Model Content

[0004] The purpose of this invention is to provide a coil guide wire coating and feeding fixture to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coiled guide wire coating and feeding fixture, the coiled guide wire coating and feeding fixture comprising a limiting component for limiting the guide wire to be coated and a suspension component fixed on the limiting component for placing the coiled guide wire, wherein when the coiled guide wire is located on the suspension component, the guide wire extends out from the coil and passes through the limiting component in a vertical direction; The suspension assembly includes a support frame, one or two horn-shaped suspension brackets arranged on the support frame, and a protective structure arranged below the horn-shaped suspension brackets. The horn-shaped suspension brackets have horn-shaped protrusions and guide wire suspension rods connected to the horn-shaped protrusions. The guide wire suspension rods are fixedly connected to the support frame and form a suspension area between the support frame and the horn. The horn-shaped protrusions are higher than the guide wire suspension rods to accommodate the guide wire coils. The protective structure includes two retaining members arranged directly below the coiled guide wires. When the coiled guide wires are hung on the guide wire suspension rods, the two retaining members are positioned on both sides of the guide wire coils. The protective structure is connected to the support frame or the guide wire suspension rods.

[0006] Furthermore, when only one of the ram's horn suspension brackets is horizontally arranged on the support frame, one of the two holding members is fixed on the support frame, and the other is arranged below the ram's horn protrusion, and the distance between the two holding members is less than the distance between the ram's horn protrusion and the support frame.

[0007] Furthermore, when the two ram's horn suspension brackets are arranged on both sides of the support frame, the two guide wire suspension rods are arranged on the same straight line, the two holding members are distributed on both sides of the support frame, and the distance between the two holding members is less than the distance between the two ram's horn protrusions.

[0008] Furthermore, the protective structure also includes a horn-shaped retaining frame arranged directly below the coiled guide wire. The retaining member is arranged on the horn-shaped retaining frame and is a retaining rod arranged on the horn end of the horn-shaped retaining frame. Preferably, the two retaining rods are arranged parallel to each other, and the length direction of the retaining rod is perpendicular to the length direction of the guide wire suspension rod.

[0009] Furthermore, the limiting component includes a limiting hole on a limiting plate, through which each guide wire passes; or the limiting component is an elastic clamping member, through which each guide wire passes and is clamped by the elastic clamping member.

[0010] Furthermore, the elastic clamping member includes a fixed base and a cover plate elastically connected to the fixed base. A flexible pad is arranged on the side of the cover plate facing the fixed base. The cover plate is configured such that when it is subjected to an external force away from the fixed base, a gap for inserting a guide wire is formed between the cover plate and the fixed base. After the external force is removed, the guide wire is clamped between the cover plate and the fixed base.

[0011] Furthermore, the cover plate is configured to be pulled away from the fixed seat by a pull member provided in front of the cover plate, or to be pushed out of the fixed seat by a push member provided in rear of the cover plate.

[0012] Furthermore, a number of fixing blocks are arranged at intervals on the fixing base. The cover plate is rectangular and wraps around the periphery of the fixing blocks. A spring is connected between the rear end face of the fixing block and the cover plate. A wire guide slot is arranged on the top of the front end face of the fixing block in a vertical direction, and the bottom of the wire guide slot is flush with the front end face of the fixing base. The cover plate is pressed and disposed below the wire guide slot and cooperates with the front end face of the fixing block to clamp the wire. A flared guide port is arranged on the top of the wire guide slot. A sliding pressure plate that can approach or move away from the end face of the wire guide slot is provided on the cover of the wire guide slot.

[0013] Furthermore, a limiting groove is arranged at the bottom of the fixing seat, and the projection of the limiting groove in the vertical direction overlaps with the projection of the guide wire through slot in the vertical direction.

[0014] Furthermore, the support frame includes an L-shaped rod and a diagonal tie rod connected to the L-shaped rod, the horn-shaped suspension bracket is arranged at the end of the L-shaped rod, and the protective structure is arranged at the corner of the L-shaped rod.

[0015] The beneficial effects of this invention are as follows: This application effectively solves the problems of loose guide wire clamping leading to easy detachment, excessive tightness hindering rotation, inability to directional limit, and difficulty in batch processing in the prior art through the coordinated design of the limiting component and the suspension component. The limiting component can accurately ensure the verticality of the guide wire during the conveying process, avoid directional deviation, and ensure coating uniformity and operational stability. The suspension component adopts a ram's horn suspension frame structure, and the width of its two side suspension areas can accommodate the suspension of multiple sets of coiled guide wires, realizing the simultaneous suspension and smooth rotation feeding of a large number of guide wires without clamping, fundamentally eliminating the problem of detachment or rotation jamming caused by improper clamping force. The bottom protective structure effectively supports and blocks the coiled guide wire through the ram's horn frame and the stop, preventing it from accidentally slipping or colliding during rotation, thus improving safety and reliability.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a coil guide wire coating and feeding fixture according to an embodiment of this application; Figure 2 for Figure 1 Exploded view of the feeding fixture for coating the guide wire of the coil tube; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, in this invention, unless otherwise explicitly specified and limited, "on" or "below" a second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium.

[0022] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Please refer to Figures 1 to 3 An embodiment of this application shows a coil guide wire coating and feeding fixture, which includes a limiting component 10 for limiting the guide wire to the coating state and a suspension component 20 fixed on the limiting component 10 for placing the coil guide wire 30. When the coil guide wire 30 is located on the suspension component 20, the guide wire extends out of the coil and passes through the limiting component 10 in a vertical direction.

[0024] The suspension assembly 20 includes a support frame 21, one or two horn-shaped suspension brackets 22 arranged on the support frame 21, and a protective structure 23 arranged below the horn-shaped suspension brackets 22. The horn-shaped suspension brackets 22 have horn protrusions 222 and guide wire suspension rods 221 connected to the horn protrusions 222. The guide wire suspension rods 221 are fixedly connected to the support frame 21 and form a suspension area between the support frame 21 and the horn. The horn protrusions 222 are higher than the guide wire suspension rods 221 to accommodate the guide wire coil. The protective structure 23 includes two retaining members 232 arranged directly below the coiled guide wire 30. When the coiled guide wire 30 is hung on the guide wire suspension rods 221, the two retaining members 232 are arranged on both sides of the guide wire coil. The protective structure 23 is connected to the support frame 21 or the guide wire suspension rods 221.

[0025] The limiting component 10 ensures the guide wire remains vertical during transport, which is crucial for uniform coating and stable quality. The suspension component 20 innovatively employs a centrally fixed, side-suspended horn-shaped suspension frame 22 design. The width of the suspension area formed on both sides is sufficient to simultaneously accommodate multiple sets of coiled guide wires 30, achieving true batch feeding and significantly improving production efficiency. Compared to existing clamping methods, the suspension method completely avoids the problem of guide wire detachment or rotational obstruction caused by improper clamping force, allowing the guide wire to unwind naturally and smoothly under gravity. The bottom protective structure 23, through the horn frame and the stopper 232, effectively supports and side-limits the suspended coiled guide wires 30, preventing them from swaying, slipping, or tangling during rotation and unwinding, ensuring a stable and safe feeding process.

[0026] In one embodiment, when only one horn-shaped suspension bracket 22 is horizontally arranged on the support frame 21, one of the two retaining members 232 is fixed to the support frame 21, and the other is arranged below the horn protrusion 222, with the distance between the two retaining members 232 being less than the distance between the horn protrusion 222 and the support frame 21. The two retaining members 232, respectively positioned below the support frame 21 and the horn protrusion 222, form an effective protective clamping groove. The distance between the retaining members 232, being less than the distance between the horn protrusion 222 and the support frame 21, constitutes a physical constraint, ensuring that the coil guide wire 30 is reliably confined within this protective clamping groove, preventing accidental upward or lateral dislodgement. This structure is particularly suitable for scenarios with limited space or where only one-sided feeding is required; it is compact and provides adequate protection.

[0027] In one embodiment, when the two ram's horn suspension brackets 22 are arranged on both sides of the support frame 21, the two guide wire suspension rods 221 are arranged in a straight line, and the two holding members 232 are distributed on both sides of the support frame 21, with the distance between the two holding members 232 being less than the distance between the two ram's horn protrusions 222. This design allows the fixture to load materials from both sides simultaneously, maximizing the fixture's space utilization and loading efficiency. The distribution of the two holding members 232 on both sides of the support frame 21, with their distance less than the distance between the two ram's horn protrusions 222, also forms an independent protective area for each of the coiled guide wires 30 on both sides, effectively preventing interference or tilting towards the center when the coils on both sides rotate, ensuring the stability and safety of dual-side operation.

[0028] In one embodiment, the protective structure 23 further includes a horn-shaped retaining frame 231 arranged directly below the coiled guide wire 30. A retaining member 232 is arranged on the horn-shaped retaining frame 231, and the retaining member 232 is a retaining rod arranged on the horn end of the horn-shaped retaining frame 231. Preferably, two retaining rods are arranged parallel to each other, and the length direction of the retaining rods is perpendicular to the length direction of the guide wire suspension rod 221. Using the horn-shaped retaining frame 231 as the mounting base for the retaining member 232 makes the protective structure 23 a highly integrated independent module, facilitating manufacturing, installation, and adjustment. The retaining member 232 is specifically defined as parallel retaining rods, with the direction of the retaining rods perpendicular to the guide wire suspension rod 221. This layout provides continuous and uniform lateral protection for the entire row of coiled guide wires 30 suspended on the guide wire suspension rod 221 with the simplest structure, providing a large protection area and reliable effect.

[0029] In one embodiment, the support frame 21 includes an L-shaped rod 211 and a diagonal tie rod 212 connected to the L-shaped rod 211. A horn-shaped suspension bracket 22 is arranged at the end of the L-shaped rod 211, and a protective structure 23 is arranged at the corner of the L-shaped rod 211. The top of the fixing seat 11 is recessed downwards to form a mounting groove, in which a transition block is arranged. The L-shaped rod 211 is fixed to the transition block by a mounting strip. The L-shaped rod 211 structure makes the overall fixture structure compact and makes full use of space. The diagonal tie rod 212 significantly enhances the rigidity and stability of the support frame 21, preventing deformation or swaying when suspending multiple sets of heavy coiled guide wires 30, thus ensuring the reliability of the fixture during long-term use. The horn-shaped suspension bracket 22 and the protective structure 23 are respectively arranged at the end and corner of the L-shaped rod 211, resulting in a reasonable layout and a smooth and natural path for the guide wire from suspension to exit.

[0030] In one embodiment, the limiting component 10 includes limiting holes on a limiting plate, with each guide wire passing through one limiting hole; or the limiting component 10 is an elastic clamping member, with each guide wire passing through and being clamped by the elastic clamping member. The limiting hole solution has a simple structure and low cost, and is suitable for scenarios where the main requirement is to limit the horizontal position of the guide wire while the vertical friction requirement is not high. The elastic clamping member solution is more functional. It can not only limit the wire, but also provide a certain vertical damping to the guide wire through the elastic clamping force. This helps to control the lowering speed of the guide wire, making it more stable and uniform, and can also correct minor bends to a certain extent, further improving the coating quality. It should be noted that the limiting component 10 is an elastic clamping member, and its structure and working principle are the same as those of the clamping component in Chinese Patent Application No. 202511084813.8.

[0031] In one embodiment, the limiting component 10 includes a fixing base 11 and a cover plate 12 elastically connected to the fixing base 11. A guide wire insertion slot 151 is arranged vertically on the top of the front end face of the fixing base 11, and the bottom of the guide wire insertion slot 151 is flush with the front end face of the fixing base 11. The cover plate 12 presses down on the bottom of the guide wire insertion slot 151. The cover plate 12 is configured such that when an external force moves away from the fixing base 11, a gap for inserting a guide wire is formed between the cover plate 12 and the fixing base 11, and after the external force is removed, the guide wire is clamped between the cover plate 12 and the fixing base 11. The guide wire insertion slot 151 provides a precise vertical channel for inserting the guide wire. The cover plate 12 presses down on the front end face of the fixing base 11 through an elastic connection, which means that the cover plate 12 can apply a controllable and flexible pressure to the guide wire passing through it. This flexible clamping method can effectively limit the horizontal swing of the guidewire and ensure its verticality, while avoiding scratches or squeezing damage to the guidewire surface coating that may be caused by rigid clamping, perfectly balancing the dual needs of limiting and protecting.

[0032] A flexible pad 13 is arranged on the side of the cover plate 12 facing the fixed seat 11. The flexible pad 13 is in direct contact with the guide wire, which further increases the contact area and buffers the pressure, and can better protect the delicate coating layer on the surface of the guide wire, prevent it from being scratched during transportation, and ensure the final quality of the product.

[0033] In one embodiment, a plurality of fixing blocks 15 are arranged at intervals on the fixing base 11. The cover plate 12 is rectangular and wraps around the periphery of the fixing blocks 15. A spring 14 is connected between the rear end face of the fixing block 15 and the cover plate 12. A wire guide slot 151 is arranged on the top of the front end face of the fixing block 15 in a vertical direction, and the bottom of the wire guide slot 151 is flush with the front end face of the fixing base 11. The cover plate 12 is pressed and disposed below the wire guide slot 151 and cooperates with the front end face of the fixing block 15 to clamp the wire. A flared guide port 152 is arranged on the top of the wire guide slot 151. A sliding pressure plate 16 is provided on the top cover of the wire guide slot 151, which can approach or move away from the end face of the wire guide slot 151.

[0034] A number of fixing blocks 15 are spaced apart on the fixing base 11. The cover plate 12 is rectangular and wraps around the periphery of the fixing blocks 15. A spring 14 connects the rear end face of the fixing block 15 to the cover plate 12. The guide wire insertion slot 151 is arranged on the front end face of the fixing block 15. Through the cooperation of the fixing blocks 15, the wrapping cover plate 12, and the spring 14, the cover plate 12 achieves stable elastic expansion and contraction relative to the fixing base 11. This structure makes the opening and closing action of the cover plate 12 smooth and the elastic force uniform, ensuring the stability and consistency of the guide wire limiting effect. The spaced fixing blocks 15 and the guide wire insertion slot 151 can simultaneously provide limiting for multiple guide wires, matching the batch feeding function of the suspension assembly 20.

[0035] The top of the guide wire insertion slot 151 is provided with a flared guide port 152. The guide port 152 design makes the operation of inserting the guide wire extremely convenient, and can easily guide the end of the guide wire into the narrow guide wire insertion slot 151, reducing the difficulty of operation, improving work efficiency, and avoiding unnecessary wear on the guide wire caused by repeated attempts to insert.

[0036] The limiting assembly 10 also includes sliding pressure plates 16 that are slidably connected to the fixed base 11 at both ends. The sliding pressure plates 16 can move closer to or further away from the end face of the wire guide slot 151. By moving the sliding pressure plates 16 as a whole, all the cover plates 12 can be controlled to move closer to or further away from the fixed base 11 simultaneously, thereby realizing the rapid opening and closing of the wire guide slot 151. This design greatly facilitates batch wire threading or maintenance operations, simplifies the process, and further improves operational efficiency.

[0037] In one embodiment, a limiting groove 17 is arranged at the bottom of the fixing base 11, and the projection of the limiting groove 17 in the vertical direction overlaps with the projection of the guide wire insertion slot 151 in the vertical direction. The limiting groove 17 added to the bottom of the fixing base 11 is vertically aligned with the guide wire insertion slot 151 above. This limiting groove 17 can perform secondary positioning of the lower end of the guide wire, forming a vertically aligned channel together with the guide wire insertion slot 151 above, further enhancing the ability to limit guide wire sway and ensure its verticality, making the guide wire delivery path more precise and stable.

[0038] This application also provides a method for coating guide wires using the above-mentioned coiled guide wire coating and feeding fixture, the method comprising: Multiple guide wire coils are inserted into the guide wire suspension rod 221 from the ram's horn protrusion 222; Adjust the wire guide coil so that it is confined between the two retaining members 232; Pull the guide wire out of the guide wire coil and insert it into the limiting assembly 10; The coil guide wire coating and feeding fixture is placed into the coating station for coating.

[0039] In one embodiment, the step of pulling the guide wire out of the guide wire coil and inserting it into the limiting assembly 10 includes: pulling out the cover plate 12 with external force to form a gap between the cover plate 12 and the fixing seat 11, inserting the guide wire into the gap, removing the external force, and the guide wire being clamped between the cover plate 12 and the fixing seat 11 due to elastic force.

[0040] This application effectively solves the problems of loose guide wire clamping leading to easy detachment, excessive tightness hindering rotation, inability to directional limit, and difficulty in batch processing in the prior art through the coordinated design of the limiting component and the suspension component. The limiting component can accurately ensure the verticality of the guide wire during the conveying process, avoid directional deviation, and ensure coating uniformity and operational stability. The suspension component adopts a ram's horn suspension frame structure, and the width of its two side suspension areas can accommodate more than five sets of coiled guide wires, realizing the simultaneous suspension and smooth rotation feeding of a large number of guide wires without clamping, fundamentally eliminating the problem of detachment or rotation jamming caused by improper clamping force. The bottom protective structure effectively supports and blocks the coiled guide wire through the ram's horn frame and the stop component, preventing it from accidentally slipping or colliding during rotation, thus improving safety and reliability.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A coiled wire coating and feeding fixture, characterized in that, The coil guide wire coating and feeding fixture includes a limiting component for limiting the guide wire in the coating state and a suspension component fixed on the limiting component for placing the coil guide wire. When the coil guide wire is located on the suspension component, the guide wire extends out of the coil and passes through the limiting component in the vertical direction. The suspension assembly includes a support frame, one or two horn-shaped suspension brackets arranged on the support frame, and a protective structure arranged below the horn-shaped suspension brackets. The horn-shaped suspension brackets have horn-shaped protrusions and guide wire suspension rods connected to the horn-shaped protrusions. The guide wire suspension rods are fixedly connected to the support frame and form a suspension area between the support frame and the horn. The horn-shaped protrusions are higher than the guide wire suspension rods to accommodate the guide wire coils. The protective structure includes two retaining members arranged directly below the coiled guide wires. When the coiled guide wires are hung on the guide wire suspension rods, the two retaining members are positioned on both sides of the guide wire coils. The protective structure is connected to the support frame or the guide wire suspension rods.

2. The coil guide wire coating and feeding fixture as described in claim 1, characterized in that, When only one of the ram's horn suspension brackets is horizontally arranged on the support frame, one of the two holding members is fixed on the support frame, and the other is arranged below the ram's horn protrusion, and the distance between the two holding members is less than the distance between the ram's horn protrusion and the support frame.

3. The coil guide wire coating and feeding fixture as described in claim 1, characterized in that, When the two ram's horn suspension brackets are arranged on both sides of the support frame, the two guide wire suspension rods are arranged on the same straight line, the two holding members are distributed on both sides of the support frame, and the distance between the two holding members is less than the distance between the two ram's horn protrusions.

4. The coil guide wire coating and feeding fixture as described in claim 2 or 3, characterized in that, The protective structure also includes a horn-shaped retaining frame arranged directly below the coiled guide wire. The retaining member is arranged on the horn-shaped retaining frame and is a retaining rod arranged on the horn end of the horn-shaped retaining frame. The two retaining rods are arranged parallel to each other, and the length direction of the retaining rod is perpendicular to the length direction of the guide wire suspension rod.

5. The coil guide wire coating and feeding fixture as described in claim 1, characterized in that, The limiting component includes a limiting hole on a limiting plate, through which each guide wire passes; or the limiting component is an elastic clamping member, through which each guide wire passes and is clamped by the elastic clamping member.

6. The coil guide wire coating and feeding fixture as described in claim 5, characterized in that, The elastic clamping member includes a fixed base and a cover plate elastically connected to the fixed base. A flexible pad is arranged on the side of the cover plate facing the fixed base. The cover plate is configured such that when it is subjected to an external force away from the fixed base, a gap for inserting a guide wire is formed between the cover plate and the fixed base, and after the external force is removed, the guide wire is clamped between the cover plate and the fixed base.

7. The coil guide wire coating and feeding fixture as described in claim 6, characterized in that, The cover plate is configured to be pulled away from the fixed seat by a pull member provided in front of the cover plate, or to be pushed out of the fixed seat by a push member provided in rear of the cover plate.

8. The coil guide wire coating and feeding fixture as described in claim 7, characterized in that, The fixing base has several fixing blocks arranged at intervals. The cover plate is rectangular and wraps around the periphery of the fixing blocks. A spring is connected between the rear end face of the fixing block and the cover plate. A wire guide slot is arranged on the top of the front end face of the fixing block in a vertical direction, and the bottom of the wire guide slot is flush with the front end face of the fixing base. The cover plate is pressed and disposed below the wire guide slot and cooperates with the front end face of the fixing block to clamp the wire. A flared guide opening is arranged on the top of the wire guide slot. The upper cover of the wire guide slot is provided with a sliding pressure plate that can approach or move away from the end face of the wire guide slot.

9. The coil guide wire coating and feeding fixture as described in claim 8, characterized in that, The bottom of the fixing seat is provided with a limiting groove, and the projection of the limiting groove in the vertical direction overlaps with the projection of the guide wire through slot in the vertical direction.

10. The coil guide wire coating and feeding fixture as described in claim 1, characterized in that, The support frame includes an L-shaped rod and a diagonal tie rod connected to the L-shaped rod. The horn-shaped suspension bracket is arranged at the end of the L-shaped rod, and the protective structure is arranged at the corner of the L-shaped rod.

Citation Information

Patent Citations

  • Guide wire feeding jig, guide wire feeding method and guide wire coating coating method

    CN120903328A