Core wire processing equipment of intervention guide wire and intervention guide wire
The core wire processing equipment, consisting of an electrolytic cell, a DC power supply, and an electrode assembly, enables efficient and precise processing of guide wire cores. This solves the problems of large footprint and large processing errors associated with centerless grinding machines. It can process core wires with small diameters of 0.2mm to 0.40mm, thus reducing processing costs.
Patent Information
- Application Number
- CN202520269732.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing centerless grinding machines have a large footprint, large processing errors, and a small range of processable core wire diameters, especially difficult to process fine core wires with diameters of 0.2mm to 0.40mm, and are also costly.
The core wire processing equipment, consisting of an electrolytic cell, a DC power supply, and an electrode assembly, precisely processes the core wire through an electrochemical reaction, forming a core wire cavity within the electrode assembly. It then uses a DC power supply and electrolyte to process the metal core wire, achieving efficient and precise core wire processing.
This invention solves the problems of large footprint and large processing error in centerless grinding machines, improves the core wire processing qualification rate, and can accurately process core wires with smaller diameters of 0.2mm to 0.40mm, thereby reducing processing costs.
Smart Images
Figure CN223823732U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of medical apparatus and instruments, especially to an intervention guide wire core wire processing device and intervention guide wire. BACKGROUND
[0002] Minimally invasive endovascular technology is a new technology and method under the guidance of medical imaging equipment, which sends intervention medical apparatus and instruments to important organs and parts of human body (such as heart, liver, brain, kidney, digestive system and reproductive system) for diagnosis and treatment, and has the advantages of small trauma, significantly shortened treatment process and hospitalization time. The guide wire is an important instrument in minimally invasive medical technology, which first enters the blood vessel or cavity to provide support and guidance for other diagnostic and therapeutic devices (such as balloon sheath).
[0003] The main structure of the guide wire is composed of a core wire and a cladding layer, wherein the performance of the core wire directly affects the twist control, pushability and supportability of the guide wire. The conventional guide wire adopts a tapered core wire design to increase the softness of the head end for easy pushing; to enhance the twist control and pushability of the guide wire, a spring sheath is usually welded at the head end of the core wire, which requires the head end of the core wire to have good size transition and precise size control, thereby facilitating the insertion and welding of the spring.
[0004] At present, when manufacturing intervention medical guide wires, the core wire is a metal wire (including pure metal wire or alloy wire), and if the guide wire is to have high performance, the core wire needs to have good size transition and precise size control. At present, the main manufacturing method for the core wire is to use a centerless grinding machine to grind the core wire by physical means. However, this method of processing the core wire has the following problems:
[0005] (1) The centerless grinding machine occupies a large area;
[0006] (2) The centerless grinding machine produces contour error and radial error during processing, which ultimately has an irreparable impact on the product, and the product pass rate cannot be guaranteed;
[0007] (3) The processing range of the conventional centerless grinding machine equipment for the core wire diameter is between 0.8mm and 1000mm. However, in clinical practice, patient lesions are often concentrated in some small and tortuous blood vessels, at which time guide wire products with an outer diameter of 0.010-0.018inch (0.25mm-0.46mm) are used, and the core wire diameter of these products is often 0.2mm-0.40mm. If you want to process these smaller diameter core wires, you need special grinding machine equipment, which is currently expensive and has high processing cost. SUMMARY
[0008] The utility model discloses a purpose lies in providing a kind of core wire processing equipment and intervention guide wire of intervention guide wire, to alleviate the above technical problems existing in prior art.
[0009] To achieve the above object, the utility model embodiment adopts the following technical scheme:
[0010] First, the utility model embodiment provides a kind of core wire processing equipment of intervention guide wire, including electrolytic cell, DC power supply and electrode assembly;
[0011] The electrode assembly includes the upper electrode block and the lower electrode block, and the upper electrode block and the lower electrode block are fixed together by a fixing assembly;The side surface of the upper electrode block towards the lower electrode block is provided with an upper half electrode groove, and the side surface of the lower electrode block towards the upper electrode block is provided with a lower half electrode groove;The upper half electrode groove and the lower half electrode groove cooperate to form a core wire cavity through the electrode assembly, and the cross-sectional shape of the core wire cavity is set to the target size of the core wire.
[0012] In the working state, the DC power supply is arranged outside the electrolytic cell, the electrode assembly is arranged inside the electrolytic cell, the pretreated core wire made of metal material passes through the core wire cavity, and the pretreated core wire is connected to the negative electrode of the DC power supply through a negative electrode lead wire;The upper electrode block and the lower electrode block are connected to the positive electrode of the DC power supply through a positive electrode lead wire;The electrolytic cell is filled with electrolyte, and the pretreated core wire is processed into a target shape under electrochemical reaction.
[0013] In the optional embodiment of the present embodiment, the core wire cavity includes a first cone section and a second cone section connected to each other along the direction through the electrode assembly;The diameter of the part of the first cone section close to the second cone section gradually decreases from the end away from the second cone section to the end close to the second cone section, and the diameter of the part of the second cone section close to the first cone section gradually decreases from the end away from the first cone section to the end close to the first cone section.
[0014] In the optional embodiment of the present embodiment, the fixing assembly in the electrode assembly includes at least two screws;The side surface of the upper electrode block is provided with at least one upper electrode block threaded hole, and the side surface of the lower electrode block is provided with at least one lower electrode block threaded hole;The electrode sheet is provided with at least two screw holes;At least one screw passes through one screw hole of the electrode sheet and is screwed into one upper electrode block threaded hole, and at least one screw passes through another screw hole of the electrode sheet and is screwed into one lower electrode block threaded hole;The electrode sheet is connected to the positive electrode of the DC power supply through a positive electrode lead wire.
[0015] Further optionally, at least three screw holes are arranged on the electrode sheet in the same direction.
[0016] In an optional embodiment of the present embodiment, the fixing assembly in the electrode assembly includes at least two positioning pins; at least one of the positioning pins is fixed to one side of the lower half electrode groove of the lower electrode block, and at least one of the positioning pins is fixed to the other side of the lower half electrode groove of the lower electrode block; the upper electrode block is provided with pin hole corresponding to each of the positioning pins after the lower electrode block is stacked.
[0017] In an optional embodiment of the present embodiment, the electrolytic cell includes an outer cell body and an inner cell body arranged in the inner space of the outer cell body; the cell wall of the inner cell body is provided with an inner cell liquid inlet and an inner cell liquid outlet which are in communication with the inner space of the outer cell body, and the cell wall of the outer cell body is provided with an outer cell liquid outlet; the outer cell liquid outlet is connected with a liquid discharge pipeline with a control valve.
[0018] In an optional embodiment of the present embodiment, the direct current power supply is a linear voltage-stabilized direct current power supply, and the output voltage and current range is 0-30V and 0-30A.
[0019] In a second aspect, the utility model provides an interventional guide wire, the core wire of the interventional guide wire is made of the core wire processing equipment of the interventional guide wire of any one of the preceding embodiments.
[0020] The core wire processing equipment provided by the utility model is used to process the core wire of the interventional guide wire, and at least has the following beneficial effects:
[0021] The processing equipment composed of the electrolytic cell, the direct current power supply and the electrode assembly realizes efficient and accurate processing of the core wire of the interventional guide wire, which solves the problems of large equipment footprint, large processing contour error and large radial error of the centerless grinding machine, improves the core wire processing qualification rate, and can accurately process the core wire with a smaller diameter range of 0.2mm-0.40mm, greatly reducing the processing cost of the small-diameter core wire.
[0022] Therefore, the utility model solves the technical problems of the prior art, i.e., using the centerless grinding machine to process the guide wire core wire, large equipment footprint, large processing error and small processable core wire diameter range. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0024] Figure 1 The overall structure of the core wire processing equipment of the intervention guide wire is provided in the embodiment of the utility model, and the axial measurement schematic view is shown in the figure.
[0025] Figure 2 The overall structure of the core wire processing equipment of the intervention guide wire is provided in the embodiment of the utility model, and the top view is shown in the figure.
[0026] Figure 3 The overall structure of the electrode assembly in the core wire processing equipment of the intervention guide wire is provided in the embodiment of the utility model, and the axial measurement schematic view is shown in the figure.
[0027] Figure 4 The overall structure of the upper electrode block in the electrode assembly is provided in the embodiment of the utility model, and the axial measurement schematic view is shown in the figure.
[0028] Figure 5 The overall structure of the lower electrode block in the electrode assembly is provided in the embodiment of the utility model, and the axial measurement schematic view is shown in the figure.
[0029] Figure 6 The overall structure of the electrode assembly in the core wire processing equipment of the intervention guide wire is provided in the embodiment of the utility model, and the axial measurement schematic view is shown in the figure.
[0030] Figure 7 The semi-finished product structure schematic view of the core wire produced in the embodiment of the utility model is shown in the figure.
[0031] Icon: 1-electrolytic cell; 11-outer tank body; 111-outer tank liquid discharge port; 112-liquid discharge pipeline; 12-inner tank body; 121-inner tank liquid inlet; 122-inner tank liquid discharge port; 2-direct current power supply; 21-positive electrode lead; 22-negative electrode lead; 3-electrode assembly; 300-core wire cavity; 301-first cone section; 302-second cone section; 31-upper electrode block; 310-upper half electrode groove; 311-upper electrode block threaded hole; 312-pinhole; 32-lower electrode block; 320-lower half electrode groove; 321-lower electrode block threaded hole; 33-electrode sheet; 331-screw hole; 34-screw; 35-positioning pin; 4-preprocessing core wire; 41-core wire semi-finished product one; 42-core wire semi-finished product two. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0034] It should be noted that: similar signs and letters represent similar items in the drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0035] In the description of the utility model, it should be pointed out that:
[0036] Unless otherwise expressly specified and limited, the terms "provided", "installed", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] The terms "proximal", "distal", "front end", "rear end", "axial", "radial", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0038] The terms "first", "second" and the like are only used to distinguish the description, and do not represent the total number, or the relative position in time and / or space, and cannot be understood as indicating or implying relative importance.
[0039] In the following, some embodiments of the utility model are described in detail in combination with the drawings.
[0040] Embodiment one
[0041] The embodiment provides a core wire processing equipment of an interventional guide wire, referring to Figures 1 to 7The core wire processing device of the intervention guide wire comprises an electrolytic cell 1, a direct current power supply 2 and an electrode assembly 3. The electrode assembly 3 comprises an upper electrode block 31 and a lower electrode block 32 arranged in layers, and the upper electrode block 31 and the lower electrode block 32 are fixed together through a fixing assembly. The side surface of the upper electrode block 31 facing the lower electrode block 32 is provided with an upper half electrode groove 310, and the side surface of the lower electrode block 32 facing the upper electrode block 31 is provided with a lower half electrode groove 320. The upper half electrode groove 310 and the lower half electrode groove 320 cooperate to form a core wire cavity 300 penetrating through the electrode assembly 3, and the cross-sectional shape of the core wire cavity 300 is set as the target size of the core wire.
[0042] In the working state, the direct current power supply 2 is arranged outside the electrolytic cell 1, the electrode assembly 3 is arranged inside the electrolytic cell 1, the pretreated core wire 4 made of a metal material (including but not limited to pure metal or alloy) passes through the core wire cavity 300, and the pretreated core wire 4 is connected to the negative electrode of the direct current power supply 2 through a negative electrode lead 22. The upper electrode block 31 and the lower electrode block 32 are connected to the positive electrode of the direct current power supply 2 through a positive electrode lead 21 (the connection mode includes but is not limited to welding, fusion or fixed connection through screws or other connecting members). The electrolytic cell 1 is filled with electrolyte, and the pretreated core wire 4 is processed into a target shape under an electrochemical reaction.
[0043] The core wire processing device provided in the embodiment has at least the following beneficial effects:
[0044] The processing device composed of the electrolytic cell 1, the direct current power supply 2 and the electrode assembly 3 realizes efficient and accurate machining of the core wire of the intervention guide wire. This method not only solves the problems of large equipment footprint, large machining profile error and large radial error of the centerless grinding machine, improves the core wire machining qualification rate, but also can accurately machine the core wire with a smaller diameter range of 0.2mm-0.40mm, greatly reducing the machining cost of the small-diameter core wire.
[0045] Therefore, the embodiment solves the technical problems of large equipment footprint, large machining error and small machinable core wire diameter range of the centerless grinding machine in the prior art.
[0046] In order to further improve the machining efficiency of the core wire, in the optional embodiment of the embodiment, the core wire cavity 300 along the direction penetrating through the electrode assembly 3 comprises a first tapered section 301 and a second tapered section 302 connected to each other. The part of the first tapered section 301 close to the second tapered section 302 gradually decreases in diameter from the end away from the second tapered section 302 to the end close to the second tapered section 302, and the part of the second tapered section 302 close to the first tapered section 301 gradually decreases in diameter from the end away from the first tapered section 301 to the end close to the first tapered section 301. In this way, a core wire semi-finished product with two sections of core wire can be machined at one time, that is,Figure 7 The core wire semi-finished product one 41 and the core wire semi-finished product two 42 are disconnected at the thinnest part (the core wire head end) of the middle part of the core wire semi-finished product one 41 and the core wire semi-finished product two 42 after the unlocking and fixing assembly separates the upper electrode block 31 and the lower electrode block 32, and the core wire semi-finished product is taken out from the core wire cavity 300. Thus, two core wire segments are obtained.
[0047] In the optional embodiment of the present embodiment, the fixing assembly in the electrode assembly 3 has various optional structural forms, for example, but not limited to, the fixing assembly comprises the electrode sheet 33 and at least two screws 34; the upper electrode block 31 is provided with at least one upper electrode block threaded hole 311 on the side surface, and the lower electrode block 32 is provided with at least one lower electrode block threaded hole 321 on the side surface; the electrode sheet 33 is provided with at least two screw holes 331; at least one screw 34 is screwed into one upper electrode block threaded hole 311 through one screw hole 331 of the electrode sheet 33, and at least one screw 34 is screwed into one lower electrode block threaded hole 321 through another screw hole 331 of the electrode sheet 33; the electrode sheet 33 is connected to the positive electrode of the direct current power supply 2 through the positive electrode lead 21, so as to realize the connection of the upper electrode block 31 and the lower electrode block 32 to the positive electrode of the direct current power supply 2 through the positive electrode lead 21, wherein the specific connection mode is preferably as shown in Figure 1 and Figure 2 As shown, the positive electrode lead 21 is twisted by two strands, and two branch leads are branched at the end away from the direct current power supply 2. One lead is wound around one screw 34 connected to the upper electrode block 31 and fixed on the electrode sheet 33, and the other lead is wound around one screw 34 connected to the lower electrode block 32 and fixed on the electrode sheet 33. The above structure ensures the stability of the electrode assembly 3, thereby ensuring the consistency and precision of the shape of the core wire cavity 300, and the connection between the direct current power supply 2 and the upper electrode block 31 and the lower electrode block 32 is simpler.
[0048] In the optional embodiment, further optionally, the electrode sheet 33 is provided with at least three spaced screw holes 331 in the same direction, so as to adjust the gap height between the upper electrode block 31 and the lower electrode block 32 according to the diameter size of the pretreated core wire 4, so as to adapt to more sizes of the pretreated core wire 4.
[0049] In an optional embodiment of the present embodiment, the fixing assembly in the electrode assembly 3 includes at least two positioning pins 35; at least one of the positioning pins 35 is fixed to one side of the lower half electrode groove 320 of the lower electrode block 32, and at least one of the positioning pins 35 is fixed to the other side of the lower half electrode groove 320 of the lower electrode block 32; the upper electrode block 31 is provided with pin hole 312 corresponding to each positioning pin 35 after being stacked with the lower electrode block 32. Among them, the positioning pin 35 can improve the alignment stability between the upper electrode block 31 and the lower electrode block 32, and further ensure the consistency and precision of the core wire cavity 300 shape. The optional embodiment can be simultaneously provided with the structure of the optional embodiment of the fixing assembly including the electrode sheet 33 and at least two screws 34, or can be independently designed from the optional embodiment of the fixing assembly including the electrode sheet 33 and at least two screws 34, and when independently designed, a limiting snap ring or the like structure can be additionally provided at the position where the positioning pin 35 penetrates the upper electrode block 31 for limiting and fixing.
[0050] In an optional embodiment of the present embodiment, the electrolytic cell 1 includes an outer tank body 11 and an inner tank body 12 arranged in the inner space of the outer tank body 11; the tank wall of the inner tank body 12 is provided with an inner tank liquid inlet 121 and an inner tank liquid outlet 122 communicating with the inner space of the outer tank body 11, and the tank wall of the outer tank body 11 is provided with an outer tank liquid outlet 111; the outer tank liquid outlet 111 is connected with a liquid discharge pipeline 112 provided with a control valve. In the optional embodiment, the double-tank arrangement of the inner tank body 12 and the outer tank body 11 can form a circulating system of electrolyte. Specifically, in the inner tank body 12, the heat generated during the electrolysis process can cause the local electrolyte to rise in temperature and decrease in density, while the cooler electrolyte sinks and is introduced into the electrode area, thereby forming natural convection. At the same time, the electrolyte can flow in and out of the inner tank body 12 through the inner tank liquid inlet 121 and the inner tank liquid outlet 122, thereby circulating in and out of the inner tank body 12, maintaining stable circulation of the electrolyte, and at least achieving the following beneficial effects: (1) through the circulation of the electrolyte, the concentration, temperature and other conditions of the electrolyte in the inner tank body 12 can be kept relatively uniform, which is very important for ensuring the consistency and quality of the core wire surface treatment; (2) electrochemical reaction usually accompanies heat generation, and circulation can help to carry away the heat generated during the electrolysis process, preventing local overheating from affecting the reaction efficiency or damaging the equipment; (3) as the electrolysis process proceeds, by-products or impurities may be generated, and the circulation system can help these substances to be more uniformly dispersed in the electrolyte, reducing their impact on the electrode or core wire surface; (4) continuous circulation helps to maintain the stability of the pH value, conductivity and other physical and chemical properties of the electrolyte, providing a more stable environment for the electrochemical reaction, which is conducive to improving production efficiency and product quality.
[0051] To further improve the uniformity and efficiency of the electrolyte circulation flow and ensure the effective circulation of the electrolyte, in some optional embodiments of the present embodiment, the core wire processing device of the interventional guide wire further comprises an electrolyte disturbance device, which, in the working state, acts on the electrolyte inside the electrolytic tank 1 to make the electrolyte disturbed. For example, in some optional embodiments, the electrolyte disturbance device comprises stirring blades, a transmission mechanism and a driving motor; the stirring blades extend into the electrolytic tank 1; one end of the transmission mechanism is connected with the stirring blades, and the other end of the transmission mechanism is connected with the driving motor; the driving motor can drive the transmission mechanism to control the stirring blades to stir the electrolyte. In another optional embodiment, the electrolyte disturbance device comprises a bubble generator and an air pipe; one end of the air pipe is connected to the air outlet of the bubble generator, and the other end of the air pipe extends into the electrolyte.
[0052] In the optional embodiments of the present embodiment, the direct current power supply 2 is a linear voltage-stabilized direct current power supply 2, and the output voltage and current range is 0-30V and 0-30A.
[0053] Embodiment Two
[0054] The present embodiment provides an interventional guide wire, and the core wire of the interventional guide wire is made of the core wire processing device of the interventional guide wire provided in any optional embodiment of Embodiment One.
[0055] Finally, it should be noted that: the above embodiments and optional embodiments in the present specification are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing optional embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, in addition, it is emphasized again: the features of each embodiment and the optional embodiments in the embodiments in the present specification can be combined with each other without conflict.
Claims
1. A core wire processing device for interventional guide wires, characterized in that: It includes an electrolytic cell (1), a DC power supply (2), and an electrode assembly (3); The electrode assembly (3) includes an upper electrode block (31) and a lower electrode block (32) stacked together. The upper electrode block (31) and the lower electrode block (32) are fixed together by a fixing component. The upper electrode block (31) has an upper half-electrode groove (310) on one side of its surface facing the lower electrode block (32), and the lower electrode block (32) has a lower half-electrode groove (320) on one side of its surface facing the upper electrode block (31). The upper half-electrode groove (310) and the lower half-electrode groove (320) cooperate to form a core wire cavity (300) that penetrates the electrode assembly (3). The cross-sectional shape of the core wire cavity (300) is set to the target size of the core wire. In operation, the DC power supply (2) is located outside the electrolytic cell (1); the electrode assembly (3) is located inside the electrolytic cell (1); the pre-treated core wire (4) made of metal material passes through the core wire cavity (300), and the pre-treated core wire (4) is connected to the negative terminal of the DC power supply (2) through the negative electrode wire (22); the upper electrode block (31) and the lower electrode block (32) are connected to the positive terminal of the DC power supply (2) through the positive electrode wire (21); the electrolytic cell (1) is filled with electrolyte; and the pre-treated core wire (4) is processed into the target shape under electrochemical reaction.
2. The core wire processing device for interventional guidewires according to claim 1, characterized in that: The core wire cavity (300) along the direction through the electrode assembly (3) includes a first conical segment (301) and a second conical segment (302) connected to each other; the diameter of the first conical segment (301) near the second conical segment (302) gradually decreases from the end away from the second conical segment (302) to the end near the second conical segment (302), and the diameter of the second conical segment (302) near the first conical segment (301) gradually decreases from the end away from the first conical segment (301) to the end near the first conical segment (301).
3. The core wire processing device for interventional guidewires according to claim 1, characterized in that: The fixing components in the electrode assembly (3) include an electrode plate (33) and at least two screws (34); one side surface of the upper electrode block (31) is provided with at least one upper electrode block threaded hole (311), and one side surface of the lower electrode block (32) is provided with at least one lower electrode block threaded hole (321); the electrode plate (33) is provided with at least two screw holes (331); at least one screw (34) passes through one screw hole (331) of the electrode plate (33) and is driven into one of the upper electrode block threaded holes (311), and at least one screw (34) passes through another screw hole (331) of the electrode plate (33) and is driven into one of the lower electrode block threaded holes (321); the electrode plate (33) is connected to the positive terminal of the DC power supply (2) through a positive electrode wire (21).
4. The core wire processing device for interventional guidewires according to claim 3, characterized in that: The electrode sheet (33) has at least three spaced screw holes (331) arranged in the same direction.
5. The core wire processing device for interventional guidewires according to claim 1, characterized in that: The fixing components in the electrode assembly (3) include at least two positioning pins (35); at least one positioning pin (35) is fixed to one side of the lower half-electrode groove (320) of the lower electrode block (32), and at least one positioning pin (35) is fixed to the other side of the lower half-electrode groove (320) of the lower electrode block (32); the upper electrode block (31) is provided with pin holes (312) corresponding to each positioning pin (35) after the lower electrode block (32) is stacked.
6. The core wire processing device for interventional guidewires according to claim 1, characterized in that: The electrolytic cell (1) includes an outer tank body (11) and an inner tank body (12) located inside the outer tank body (11). The inner tank body (12) has an inner tank inlet (121) and an inner tank outlet (122) that communicate with the inner space of the outer tank body (11). The outer tank body (11) has an outer tank outlet (111) on its tank wall. The outer tank outlet (111) is connected to a drain pipe (112) with a control valve.
7. The core wire processing device for interventional guidewires according to claim 1, characterized in that: The DC power supply (2) is a linear regulated DC power supply (2) with an output voltage and current range of 0 to 30V and 0 to 30A.
8. An interventional guidewire, characterized in that: The core wire of the interventional guidewire is made by the core wire processing equipment of the interventional guidewire according to any one of claims 1 to 7.