D-shaped stainless steel wire

Abstract

The utility model relates to the technical field of wires, in particular to a D-shaped stainless steel wire, which comprises a stainless steel wire core, the section of the stainless steel wire core is D-shaped, the stainless steel wire core comprises an outer cambered surface, a horizontal surface, a first connecting surface and a second connecting surface, and the first connecting surface and the second connecting surface are respectively arranged at two ends of the horizontal surface. The two sides of the outer cambered surface are connected; the first connecting face and the second connecting face are both arc-shaped connecting faces. According to the utility model, the D-shaped section design is adopted, so that the stainless steel wire is more flexible to push and stronger in adaptability in a complex cavity channel structure, and can smoothly pass through a zigzag channel, and resistance and hindrance possibly encountered in the pushing process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire materials, in particular to a D-shaped stainless steel wire. Background Art

[0002] Fine wire materials generally refer to metal wire materials with very small diameters. Such wire materials are usually used in occasions that require fine operations or passing through and pushing in limited spaces, such as guide wires and catheters in medical devices. The wire materials can be made of stainless steel, copper, titanium, etc., and have the characteristics of good flexibility, small diameter, and smooth surface, and are suitable for minimally invasive surgery, interventional therapy, and other medical applications that require fine manipulation. Such wire materials play an important role in the medical field, such as in the fields of cardiac catheterization surgery, vascular interventional therapy, endoscopic surgery, etc. Due to their small diameter, good flexibility, and sufficient strength, the wire materials can be precisely manipulated and pushed in narrow blood vessels or other biological tissues, providing greater flexibility and accuracy for medical operations.

[0003] Existing wire materials generally use stainless steel wires. Due to structural reasons, the existing stainless steel wires are prone to limitations in smoothness and accuracy during the pushing process of multi-lumen guide rails. Therefore, it is necessary to further improve the structure of the existing stainless steel wire materials. Summary of the Utility Model

[0004] To solve the above problems, the utility model adopts a D-shaped cross-section design to make the stainless steel wire more flexible and adaptable in the pushing process of complex channel structures, capable of smoothly passing through tortuous channels, and reducing the resistance and obstacles that may be encountered during the pushing process, which is a D-shaped stainless steel wire.

[0005] The technical solution adopted by the utility model is: a D-shaped stainless steel wire, including a stainless steel wire core, the cross-section of the stainless steel wire core is set in a D shape, the stainless steel wire core includes an outer arc surface, a horizontal surface, a first connecting surface, and a second connecting surface, the first connecting surface and the second connecting surface are respectively arranged at both ends of the horizontal surface and are used for connecting both sides of the outer arc surface; both the first connecting surface and the second connecting surface are arc-shaped connecting surfaces.

[0006] A further improvement to the above solution is that the arc diameter size of the outer arc surface is 0.2 - 0.4 mm.

[0007] A further improvement to the above solution is that a plurality of grooves are arranged on the outer arc surface, and the plurality of grooves are continuously arranged along the axial direction of the outer arc surface.

[0008] A further improvement to the above solution is that the arc centers of the first connecting surface and the second connecting surface are on the same horizontal line.

[0009] A further improvement to the above solution is that a V-shaped cut groove is provided at the center of the circular arc of the outer arc surface, and one end of the V-shaped cut groove penetrates the horizontal plane.

[0010] A further improvement to the above solution is that the horizontal plane is formed by rolling on one side of the stainless steel wire core.

[0011] A further improvement to the above solution is that the stainless steel wire core is provided with a through groove, and the through groove forms a linear through groove after being rolled on the horizontal plane.

[0012] A further improvement to the above solution is that the center of the V-shaped cut groove corresponds to the center position of the linear through groove.

[0013] A further improvement to the above solution is that a protective layer is provided on the outer surface of the stainless steel wire core, and the protective layer is a chromium plating layer, a nickel plating layer or a zinc plating layer.

[0014] The beneficial effects of the present utility model are as follows:

[0015] Compared with the existing stainless steel wire, the present utility model is used for pushing medical multi-lumen catheters. The D-shaped cross-section design makes the stainless steel wire more flexible and adaptable in the complex lumen structure, can smoothly pass through the tortuous channel, and reduces the resistance and obstacles that may be encountered during the pushing process. The arc-shaped design of the first connecting surface and the second connecting surface can provide a more stable connection, reduce the mutations or resistance changes that may occur during the pushing process, and is beneficial to the stability and smoothness of the pushing. The design of the D-shaped cross-section and the arc-shaped connecting surface helps to reduce the friction or trauma that may be caused to the patient's tissue during the pushing process, reduces the discomfort and trauma risk that may be generated during the pushing process. The setting of the arc-shaped connecting surface makes the stainless steel wire easier to advance along the specified direction during the pushing process, increases the accuracy of the pushing, and helps the doctor to accurately guide the catheter through the target position. The design of the D-shaped cross-section and the arc-shaped connecting surface reduces the contact surface area with the inner wall of the catheter, thereby reducing the frictional resistance that may be generated during the pushing process, and improving the smoothness and efficiency of the pushing. The design solution of the present utility model in the pushing of medical multi-lumen catheters provides strong support for the successful implementation of medical operations and the safety and comfort of patients through its multiple technical effects such as adaptability, stable connection, reduced trauma risk, precise guidance, reduced frictional resistance and improved visibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the D-shaped stainless steel wire of the present utility model;

[0017] Figure 2 is Figure 1 the schematic structural diagram of the D-shaped stainless steel wire in

[0018] Figure 3 isFigure 1 Structural schematic diagram of another embodiment of the D-shaped stainless steel wire;

[0019] Figure 4 This is a structural schematic diagram of another embodiment of the D-shaped stainless steel wire of the present utility model.

[0020] Explanation of reference numerals: stainless steel wire core 10, outer arc surface 1, groove 11, V-shaped cut groove 12, through groove 13, horizontal plane 2, first connection surface 3, second connection surface 4. Detailed implementation manners

[0021] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0024] Such as Figures 1 to 4As shown in the figure, in an embodiment of the present utility model, a D-shaped stainless steel wire is involved, which includes a stainless steel wire core 10. The cross-section of the stainless steel wire core 10 is arranged in a D-shaped configuration. The stainless steel wire core 10 includes an outer arc surface 1, a horizontal surface 2, a first connecting surface 3, and a second connecting surface 4. The first connecting surface 3 and the second connecting surface 4 are respectively arranged at both ends of the horizontal surface 2 and are used for connecting both sides of the outer arc surface 1. Both the first connecting surface 3 and the second connecting surface 4 are arc-shaped connecting surfaces. This embodiment is used for the pushing of medical multi-lumen catheters. The D-shaped cross-section design makes the pushing of the stainless steel wire more flexible and adaptable in complex lumen structures, and can smoothly pass through tortuous channels, reducing the resistance and obstacles that may be encountered during the pushing process. The arc-shaped design of the first connecting surface 3 and the second connecting surface 4 can provide a more stable connection, reducing the sudden changes or resistance changes that may occur during the pushing process, which is beneficial to the stability and smoothness of the pushing. The design of the D-shaped cross-section and the arc-shaped connecting surface helps to reduce the friction or trauma that may be caused to the patient's tissues during the pushing process, reducing the discomfort and trauma risks that may be generated during the pushing process. The setting of the arc-shaped connecting surface makes the stainless steel wire easier to advance along the specified direction during the pushing process, increasing the accuracy of the pushing, and helping the doctor to accurately guide the catheter through the target position. The design of the D-shaped cross-section and the arc-shaped connecting surface reduces the contact surface area between the catheter inner wall, thereby reducing the frictional resistance that may be generated during the pushing process, improving the smoothness and efficiency of the pushing. The design solution of the present utility model in the pushing of medical multi-lumen catheters provides strong support for the successful implementation of medical operations and the safety and comfort of patients through multiple technical effects such as adaptability, stable connection, reduced trauma risk, precise guidance, reduced frictional resistance, and improved visibility.

[0025] The arc diameter size of the outer arc surface 1 is 0.2 - 0.4 mm. In this embodiment, the arc diameter size of the outer arc surface 1 enables the D-shaped stainless steel wire to pass through smaller and more complex lumen structures, which is beneficial to achieving more precise catheter pushing in medical operations. The arc diameter size helps to reduce the invasiveness to the patient's tissues, reducing the discomfort and trauma risks to the patient during the catheter pushing process, and improving the comfort and safety of the patient. The arc diameter size makes the D-shaped stainless steel wire more easily controlled precisely by the doctor during the pushing process, which is beneficial for the doctor to finely adjust the catheter pushing process and improve the accuracy of medical operations.

[0026] There are multiple grooves 11 provided on the outer arc surface 1, and the multiple grooves 11 are continuously arranged along the axial direction of the outer arc surface 1. In this embodiment, the provision of the grooves 11 reduces the contact surface area between the stainless steel wire and the inner wall of the catheter, thereby reducing the frictional resistance that may be generated during the pushing process and improving the smoothness and efficiency of the pushing. The design of the grooves 11 enables the outer arc surface 1 to have better flexibility and bending ability, which is beneficial to the penetration and pushing of the stainless steel wire in complex channel structures, and improves the applicability and flexibility of catheter pushing. The grooves 11 can accommodate lubricant, which helps to reduce friction during the pushing process and provide a smoother pushing experience, thereby reducing the resistance during pushing and improving the pushing efficiency.

[0027] The arc centers of the first connection surface 3 and the second connection surface 4 are on the same horizontal line. In this embodiment, the arc centers being on the same horizontal line can ensure that the stainless steel wire maintains a relatively stable position during the pushing process, reducing possible offsets and shakes, and improving the accuracy and success rate of catheter pushing. The design of the connection surfaces makes it easier to control the direction of the stainless steel wire during pushing, reducing the risk of accidental damage to surrounding tissues, and thus improving the safety and comfort of the patient. The horizontal arrangement of the connection surfaces helps the stainless steel wire to penetrate more easily in complex channel structures, improving the adaptability and flexibility of pushing, and reducing the complexity and risk of operation.

[0028] A V-shaped cut groove 12 is provided at the arc center of the outer arc surface 1, and one end of the V-shaped cut groove 12 penetrates through the horizontal plane 2. Specifically, the horizontal plane 2 is formed by rolling on one side of the stainless steel wire core 10. The stainless steel wire core 10 is provided with a through groove 13, and the through groove 13 forms a linear through groove 13 after rolling on the horizontal plane 2. The center of the V-shaped cut groove 12 corresponds to the center position of the linear through groove 13. In this embodiment, the provision of the V-shaped cut groove 12 and the linear through groove 13 helps to reduce the contact surface area between the stainless steel wire and the inner wall of the catheter, thereby reducing the frictional resistance that may be generated during the pushing process and improving the smoothness and efficiency of the pushing. The design of the V-shaped cut groove 12 enables the outer arc surface 1 to have better flexibility and bending ability, which is beneficial to the penetration and pushing of the stainless steel wire in complex channel structures, and improves the applicability and flexibility of catheter pushing. The cut groove and the through groove 13 can accommodate lubricant, which helps to reduce friction during the pushing process and provide a smoother pushing experience, thereby reducing the resistance during pushing and improving the pushing efficiency. The provision of the V-shaped cut groove 12 makes the stainless steel wire more stable during the pushing process, reducing possible lateral offsets or rotations, and improving the accuracy and success rate of the pushing. The provision of the V-shaped cut groove 12 and the linear through groove 13 enables the stainless steel wire to penetrate more easily in complex channel structures, improving the adaptability and flexibility of pushing, and reducing the complexity and risk of operation.

[0029] A protective layer is provided on the outer surface of the stainless steel wire core 10, and the protective layer is a chromium plating layer, a nickel plating layer or a zinc plating layer. In this embodiment, the chromium plating layer, the nickel plating layer or the zinc plating layer can effectively protect the surface of the stainless steel wire core 10, reduce its sensitivity to corrosive media, and extend the service life of the stainless steel wire. The smooth surface of the protective layer helps to reduce the friction between the stainless steel wire and the inner wall of the conduit, improving the smoothness and efficiency of pushing.

[0030] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A D-shaped stainless steel wire, characterized in that: It includes a stainless steel wire core, the cross-section of which is D-shaped. The stainless steel wire core includes an outer arc surface, a horizontal plane, a first connecting surface and a second connecting surface. The first connecting surface and the second connecting surface are respectively arranged at both ends of the horizontal plane and are used to connect the two sides of the outer arc surface; the first connecting surface and the second connecting surface are both arc-shaped connecting surfaces.

2. The D-shaped stainless steel wire according to claim 1, characterized in that: The arc diameter of the outer arc surface is 0.2-0.4 mm.

3. The D-shaped stainless steel wire according to claim 1, characterized in that: The outer arc surface is provided with a plurality of grooves, and the plurality of grooves are continuously arranged along the axial direction of the outer arc surface.

4. The D-shaped stainless steel wire according to claim 1, characterized in that: The arc axes of the first connecting surface and the second connecting surface are located on the same horizontal line.

5. The D-shaped stainless steel wire according to claim 1, characterized in that: A V-shaped groove is arranged at the arc axis of the outer arc surface, and one end of the V-shaped groove passes through the horizontal plane.

6. The D-shaped stainless steel wire according to claim 5, characterized in that: The horizontal surface is formed on one side of the stainless steel wire core by rolling.

7. The D-shaped stainless steel wire according to claim 6, characterized in that: The stainless steel wire core is provided with a through groove, and the through groove is formed into a linear through groove after being rolled on a horizontal plane.

8. The D-shaped stainless steel wire according to claim 7, characterized in that: The center of the V-shaped groove corresponds to the center position of the linear through groove.

9. The D-shaped stainless steel wire according to claim 1, characterized in that: The outer surface of the stainless steel wire core is provided with a protective layer, and the protective layer is a chrome-plated layer, a nickel-plated layer or a zinc-plated layer.

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