C-shaped stainless steel wire

Abstract

The utility model relates to the technical field of wires, in particular to a C-shaped stainless steel wire, which comprises a stainless steel wire core, the section of the stainless steel wire core is C-shaped, the stainless steel wire core comprises an outer cambered surface, an inner cambered surface, a first connecting surface and a second connecting surface, the outer cambered surface is arranged on the outer side surface of the stainless steel wire core, and the inner cambered surface is arranged on the outer side surface of the stainless steel wire core. The inner cambered surface is arranged on one surface, opposite to the outer cambered surface, of the stainless steel wire core; the two sides of the outer arc face and the two sides of the inner arc face are connected through a first connecting face and a second connecting face respectively. According to the application of the medical multi-cavity catheter pushing device in medical multi-cavity catheter pushing, smooth, accurate and safe catheter pushing can be achieved through the special section shape and structural design of the medical multi-cavity catheter pushing device, and the efficiency and the success rate of medical operation are improved.

Description

Technical Field

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

[0002] Fine wire materials usually refer to metal wire materials with very small diameters. Such wire materials are usually used in occasions that require fine operations or need to be threaded and pushed 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 catheter 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 limited 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 is applied in the pushing of medical multi-lumen catheters. Through its special cross-sectional shape and structural design, a C-shaped stainless steel wire that can achieve smooth, precise, and safe catheter pushing, and improve the efficiency and success rate of medical operations can be realized.

[0005] The technical solution adopted by the utility model is: a C-shaped stainless steel wire, including a stainless steel wire core. The cross-sectional shape of the stainless steel wire core is C-shaped. The stainless steel wire core includes an outer arc surface, an inner arc surface, a first connection surface, and a second connection surface. The outer arc surface is arranged on the outer side of the stainless steel wire core, and the inner arc surface is arranged on the side of the stainless steel wire core opposite to the outer arc surface; both sides of the outer arc surface and the inner arc surface are connected by a first connection surface and a second connection surface respectively.

[0006] For further improvement of the above solution, the arc diameter of the outer arc surface is 0.2 - 0.5 mm.

[0007] For further improvement of the above solution, a first transition arc surface is arranged at the connection of the outer arc surface and the first connection surface, and a second transition arc surface is arranged at the connection of the outer arc surface and the second connection surface.

[0008] For further improvement of the above solution, the axis line of the outer arc surface and the axis line of the inner arc surface are on the same vertical line.

[0009] A further improvement to the above solution is that the circular arc axis of the outer arc surface is not coaxial with the circular arc axis of the inner arc surface.

[0010] A further improvement to the above solution is that the circular arc diameter of the inner arc surface is 0.0085 - 0.03 mm.

[0011] A further improvement to the above solution is that both the first connection surface and the second connection surface are convex circular arc surfaces.

[0012] A further improvement to the above solution is that the circular arc axes of the first connection surface and the second connection surface are on the same horizontal line.

[0013] A further improvement to the above solution is that the first connection surface and the second connection surface are symmetrically arranged on both sides of the outer arc surface and the inner arc surface.

[0014] A further improvement to the above solution is that a plurality of grooves are provided on the outer arc surface, and the plurality of grooves are continuously arranged along the axial direction of the outer arc surface.

[0015] The beneficial effects of the present utility model are as follows:

[0016] Compared with the existing stainless steel wire, the present utility model is used for the pushing of medical multi-lumen catheters. The special cross-sectional shape of the C-shaped stainless steel wire core and the design of the outer arc surface and the inner arc surface enable it to more smoothly pass through the lumen of the catheter during the pushing process of the multi-lumen catheter, reduce the resistance during pushing, and improve the pushing efficiency. Due to the design of the outer arc surface and the inner arc surface of the C-shaped stainless steel wire core, it can better contact the inner wall of the catheter, thereby realizing more accurate control of the pushing direction of the catheter and helping to accurately locate the target position.

[0017] The present utility model uses an extremely thin stainless steel wire core, which can occupy a smaller space during the pushing process of the medical multi-lumen catheter, reduce the invasiveness to the patient's tissue, and reduce the trauma risk that may be caused during the catheter pushing process. The special structural design of the C-shaped stainless steel wire core enhances its penetration ability in complex anatomical structures, helps to overcome the resistance of some biological tissues or structures encountered during the catheter pushing process, and improves the probability of successful pushing. As a stainless steel material, the C-shaped stainless steel wire has good corrosion resistance and oxidation resistance, and can ensure reliable long-term use in a medical environment. The application of the present utility model in the pushing of medical multi-lumen catheters can achieve smooth, accurate and safe catheter pushing through its special cross-sectional shape and structural design, improve the efficiency and success rate of medical operations, and at the same time reduce the discomfort and trauma risk to the patient. Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of the C-shaped stainless steel wire of the present utility model;

[0019] Figure 2 is Figure 1 a schematic structural view of an embodiment of a C-shaped stainless steel wire;

[0020] Figure 3 is a schematic structural view of another embodiment of the C-shaped stainless steel wire of the present invention.

[0021] Explanation of reference numerals: stainless steel wire core 10, outer arc surface 1, first transition arc surface 11, second transition arc surface 12, groove 13, inner arc surface 2, first connection surface 3, second connection surface 4. Detailed implementation manners

[0022] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the understanding of the disclosure of the present invention is more thorough and comprehensive.

[0023] 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 can also be a middle 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 a middle element at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] such as Figures 1 to 3As shown, in an embodiment of the present utility model, a C-shaped stainless steel wire is involved, which includes a stainless steel wire core 10. The cross-sectional shape of the stainless steel wire core 10 is C-shaped. The stainless steel wire core 10 includes an outer arc surface 1, an inner arc surface 2, a first connection surface 3, and a second connection surface 4. The outer arc surface 1 is arranged on the outer side of the stainless steel wire core 10, and the inner arc surface 2 is arranged on the side of the stainless steel wire core 10 opposite to the outer arc surface 1; both sides of the outer arc surface 1 and the inner arc surface 2 are connected by the first connection surface 3 and the second connection surface 4 respectively. This embodiment is used for the pushing of medical multi-lumen catheters. With the special cross-sectional shape of the C-shaped stainless steel wire core 10 and the design of the outer arc surface 1 and the inner arc surface 2, it can more smoothly pass through the lumen of the catheter during the pushing process of the multi-lumen catheter, reducing the resistance during pushing and improving the pushing efficiency. Due to the design of the outer arc surface 1 and the inner arc surface 2 of the C-shaped stainless steel wire core 10, it can better contact the inner wall of the catheter, thus achieving more precise control of the pushing direction of the catheter and helping to accurately locate the target position.

[0026] In this embodiment, the extremely thin stainless steel wire core 10 can occupy a smaller space during the pushing process of the medical multi-lumen catheter, reducing the invasiveness to the patient's tissue and lowering the trauma risk that may be caused during the catheter pushing process. The special structural design of the C-shaped stainless steel wire core 10 enhances its penetration ability in complex anatomical structures, helping to overcome the resistance of some biological tissues or structures encountered during the catheter pushing process and increasing the probability of successful pushing. As a stainless steel material, this C-shaped stainless steel wire has good corrosion resistance and oxidation resistance, ensuring reliable long-term use in a medical environment. The application of this embodiment in the pushing of medical multi-lumen catheters can achieve smooth, precise, and safe catheter pushing through its special cross-sectional shape and structural design, improving the efficiency and success rate of medical operations, and at the same time reducing the discomfort and trauma risk to the patient.

[0027] The arc diameter of the outer arc surface 1 is 0.2 - 0.5 mm, and the arc diameter of the inner arc surface 2 is 0.0085 - 0.03 mm. With a thinner diameter design, preferably 0.0275 mm, in this embodiment, the thinner arc diameter of the outer arc surface 1 makes the stainless steel wire occupy a smaller space during the pushing process of the medical multi-lumen catheter, reducing the invasiveness to the patient's tissue and the possible discomfort and trauma risk. The thinner arc diameter of the outer arc surface 1 helps the penetration ability of the stainless steel wire in complex anatomical structures, enabling it to more easily pass through narrow or curved lumens and increasing the success rate of catheter pushing. The small arc diameter of the outer arc surface 1 reduces the frictional resistance between the stainless steel wire and the inner wall of the catheter, making the stainless steel wire more smooth during the pushing process, reducing the resistance during pushing, and improving the pushing efficiency.

[0028] At the connection between the outer arc surface 1 and the first connection surface 3, a first transition arc surface 11 is provided, and at the connection with the second connection surface 4, a second transition arc surface 12 is provided. In this embodiment, the provision of the first transition arc surface 11 and the second transition arc surface 12 helps to reduce the mutation between the outer arc surface 1 and the connection surface, thereby reducing the stress concentration phenomenon that may occur during the pushing process, reducing the stress concentration and possible fatigue damage of the stainless steel wire. Through the design of the transition arc surface, the pressure exerted on the stainless steel wire during the pushing process can be effectively dispersed, reducing local stress concentration, and helping to improve the service life and durability of the stainless steel wire. The provision of the first transition arc surface 11 and the second transition arc surface 12 makes the pusher more stable during the pushing process, reducing the vibration and instability phenomena that may occur to the stainless steel wire during the pushing process, and is conducive to improving the accuracy and success rate of catheter pushing.

[0029] The axis line of the outer arc surface 1 and the axis line of the inner arc surface 2 are on the same vertical line. Specifically, the circular arc axis of the outer arc surface 1 and the circular arc axis of the inner arc surface 2 are non-coaxial. In this embodiment, since the axis lines of the outer arc surface 1 and the inner arc surface 2 are on the same vertical line and are non-coaxial, this design can increase the stability of the stainless steel wire during the pushing process, reducing the possible rotation or deviation phenomena, and is conducive to improving the accuracy and success rate of pushing. The non-coaxial setting of the axis lines of the outer arc surface 1 and the inner arc surface 2 enables the stainless steel wire to slide more smoothly on the inner wall of the catheter during the pushing process, reducing the frictional resistance and improving the pushing efficiency.

[0030] Both the first connection surface 3 and the second connection surface 4 are outwardly convex circular arc surfaces. Specifically, the circular arc axes of the first connection surface 3 and the second connection surface 4 are on the same horizontal line. The first connection surface 3 and the second connection surface 4 are symmetrically arranged on both sides of the outer arc surface 1 and the inner arc surface 2. In this embodiment, through the outwardly convex circular arc surface design and the symmetrical arrangement, the first connection surface 3 and the second connection surface 4 can provide a more stable connection, reducing the mutation or resistance change that may occur during the pushing process, and being conducive to the stability and smoothness of pushing. The outwardly convex circular arc surface design helps to reduce the friction between the stainless steel wire and the inner wall of the catheter, especially at the connection surface, reducing the frictional resistance during pushing and improving the pushing efficiency. The symmetrical arrangement of the connection surfaces on both sides of the outer arc surface 1 and the inner arc surface 2 helps to improve the accuracy of pushing, enabling the stainless steel wire to pass through complex channel structures more accurately and improving the success rate of catheter pushing.

[0031] A plurality of grooves 13 are provided on the outer arc surface 1, and the plurality of grooves 13 are continuously arranged along the axial direction of the outer arc surface 1. In this embodiment, the provision of the grooves 13 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 the complex channel structure, and improves the applicability and flexibility of the catheter pushing. The design of the grooves 13 can 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 provision of the grooves 13 makes the stainless steel wire more stable during the pushing process, reduces the possible lateral offset or rotation, and improves the accuracy and success rate of the pushing.

[0032] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A C-shaped stainless steel wire, characterized in that: It includes a stainless steel wire core, the cross-sectional shape of the stainless steel wire core is a C-shape, the stainless steel wire core includes an outer arc surface, an inner arc surface, a first connecting surface and a second connecting surface, the outer arc surface is arranged on the outer side surface of the stainless steel wire core, and the inner arc surface is arranged on the side of the stainless steel wire core opposite to the outer arc surface; the outer arc surface and the two sides of the inner arc surface are respectively connected by the first connecting surface and the second connecting surface.

2. The C-shaped stainless steel wire according to claim 1, characterized in that: The arc diameter of the outer arc surface is 0.2-0.5 mm.

3. The C-shaped stainless steel wire according to claim 1, characterized in that: A first transition arc surface is provided at the connection between the outer arc surface and the first connection surface, and a second transition arc surface is provided at the connection between the outer arc surface and the second connection surface.

4. The C-shaped stainless steel wire according to claim 1, characterized in that: The axis center line of the outer arc surface and the axis center line of the inner arc surface are on the same vertical line.

5. The C-shaped stainless steel wire according to claim 1, characterized in that: The arc axis of the outer arc surface is non-coaxially arranged with the arc axis of the inner arc surface.

6. The C-shaped stainless steel wire according to claim 1, characterized in that: The arc diameter of the inner arc surface is 0.0085-0.03 mm.

7. The C-shaped stainless steel wire according to claim 1, characterized in that: The first connecting surface and the second connecting surface are both convex arc surfaces.

8. The C-shaped stainless steel wire according to claim 7, characterized in that: The arc axes of the first connecting surface and the second connecting surface are located on the same horizontal line.

9. The C-shaped stainless steel wire according to claim 7, characterized in that: The first connecting surface and the second connecting surface are symmetrically arranged on both sides of the outer arc surface and the inner arc surface.

10. The C-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.

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