Wire fixing structure

Abstract

The utility model discloses a wire fixing structure, and belongs to the technical field of medical instruments. The wire fixing structure comprises a limiting unit and a fixing unit, the limiting unit comprises a connecting part and at least two clamping parts, every two adjacent clamping parts are connected through the connecting part, each clamping part is bent to form a circular-arc-shaped limiting groove in a surrounding mode, and the interior of each circular-arc-shaped limiting groove is used for collecting and limiting a wire; the fixing unit comprises two fixing parts, the two fixing parts are arranged at the two ends of the limiting unit respectively, the fixing parts are connected with the clamping parts located at the ends of the limiting unit, the height of the limiting unit can be reduced by stretching the fixing parts outwards, and the limiting unit is used for clamping a wire. According to the skull bone grinding device, manual shaping of a doctor is not needed, the wire located in the bone grinding groove can also be pressed and used for fixing the position of the wire on the skull, and normal proceeding of a DBS operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a wire fixing structure. Background Technology

[0002] Deep Brain Stimulation (DBS), a cutting-edge and highly innovative surgical technique in modern neurosurgery, has demonstrated significant clinical value in recent years. This technique primarily relies on a sophisticated implantable medical device system, comprising three key components: an implantable pulse generator (IPG), extension leads, and electrode leads. The IPG, acting as the system's "power source," is a miniature implantable electronic device capable of generating electrical pulses of specific frequency, amplitude, and pulse width. The extension leads play a crucial "bridge" role, closely connected to the IPG and serving as a reliable medium for transmitting electrical stimulation signals. Through the extension leads, the electrical stimulation generated by the IPG is accurately transmitted to the electrode leads. The electrode leads, as the part that directly contacts the patient's brain tissue, are ingeniously designed and functionally implemented. They are equipped with multiple electrode contacts, which act as precise "signal transmitters." Upon receiving the electrical stimulation transmitted from the extension leads, these contacts can accurately deliver the stimulation to specific areas of the body's tissues according to preset parameters.

[0003] During the actual DBS surgery, neurosurgeons use advanced imaging techniques and stereotactic surgical equipment to precisely locate specific target areas within the patient's brain. Electrode leads are then carefully implanted into these target areas. Simultaneously, an IPG (Intracytoplasmic Gyroscope) is implanted in the subcutaneous tissue of the patient's chest or abdomen and connected to the implanted electrode leads via extension leads. Once the entire system is installed and configured, the IPG continuously delivers electrical pulses according to a pre-programmed sequence. These electrical pulses provide precise electrical stimulation to specific brain regions, effectively modulating abnormal neural electrical activity in those regions. Through this regulatory mechanism, DBS surgery can significantly improve symptoms of various neurological disorders, such as tremor, rigidity, and bradykinesia in Parkinson's disease patients, and involuntary tremors in patients with essential tremor, greatly enhancing patients' quality of life.

[0004] In actual surgery, one end of the extension lead has a docking module for inserting the electrode lead. After the electrode lead is inserted into the docking module, it becomes electrically connected to the extension lead. Currently, a straight-plate-shaped metal connector is used to fix the docking module. This usually requires the surgeon to manually shape the plate to match the shape of the docking module, which is laborious and often damages the lead, potentially prolonging the surgery. Furthermore, when fixing the docking module (the connection between the extension lead and the electrode lead), the surgeon may decide whether to create a bone groove to reduce the protrusion of the docking module from the skull. In such cases, a single metal connector is often unsuitable, requiring the fabrication of multiple sizes of metal connectors, increasing treatment costs. Utility Model Content

[0005] The purpose of this invention is to provide a wire fixation structure that not only eliminates the need for manual shaping by doctors, but also allows the wire located in the bone groove to be compressed, thereby fixing the position of the wire on the skull and ensuring the normal progress of DBS surgery.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] The conductor fixing structure includes:

[0008] The limiting unit includes a connecting part and at least two clamping parts, with adjacent clamping parts connected by the connecting part. Each clamping part is bent to form an arc-shaped limiting groove, which is used to gather and limit the wire.

[0009] A fixing unit includes at least two fixing parts, which are respectively disposed at both ends of the limiting unit. The fixing parts are connected to the clamping parts located at the ends of the limiting unit. Extending the fixing parts outward can reduce the height of the limiting unit for clamping the wire.

[0010] As an optional solution for the wire fixing structure, the groove wall of the arc-shaped limiting groove is provided with an anti-slip structure; and / or

[0011] The fixing part is provided with fixing holes, and fasteners can pass through the fixing holes to connect with the skull fixing surface.

[0012] As an optional solution for the wire fixing structure, the limiting unit includes two clamping parts, and at the connection transition between each clamping part and the connecting part, the clamping part is provided with an extension part extending along its own bending path direction.

[0013] As an optional solution for the wire fixing structure, the central angle formed by the combination of the clamping part and the extension part is greater than 180 degrees and less than 360 degrees.

[0014] As an optional solution for the wire fixing structure, the limiting unit includes three clamping parts, which are connected in sequence; and / or

[0015] The central angle of the clamping part is not less than 180 degrees.

[0016] As an optional solution for the wire fixing structure, the central angle of the clamping part is no greater than 90 degrees, the connecting part is flat, and the arc-shaped limiting grooves of two adjacent clamping parts are connected.

[0017] As an optional solution for the wire fixing structure, a clamping unit is provided on the side of the connecting part. The clamping unit includes an extension part and two tightening parts. The extension part is connected to the connecting part, and the two tightening parts are respectively provided at both ends of the extension part.

[0018] As an alternative to the wire fixing structure, the opening formed between the extension portion and the two tightening portions gradually decreases in the direction close to the limiting unit.

[0019] As an optional solution for the conductor fixing structure, the limiting unit and the fixing unit are integrally formed structures.

[0020] As an optional solution for the wire fixing structure, the wire fixing structure is made of pure titanium, titanium alloy, stainless steel, nickel-titanium alloy or plastic.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] The lead fixing structure provided by this invention installs two fixing parts of the fixing unit onto both ends of the limiting unit. The two clamping parts of the limiting unit have arc-shaped limiting grooves for gathering and restricting the lead wire, eliminating the need for manual shaping of the metal connecting pieces by the surgeon. Fasteners pass through the fixing parts and connect to the skull fixing surface to fix the lead wire's position on the skull, preventing positional displacement of the electrode lead and extension lead, and ensuring that the electrode contacts do not stimulate non-specific brain regions, thus guaranteeing the normal progress of DBS surgery. In this invention, the height of the limiting unit can be reduced by stretching the fixing parts, matching the overall height of the lead wire within the skull's mortise groove, clamping the lead wire between the limiting unit and the mortise groove. This eliminates the need for surgeons to prepare various sizes of metal connecting pieces, reducing treatment costs. This lead fixing structure is compatible with both scenarios where surgeons use and do not design mortise grooves to fix leads in clinical practice, expanding its applicability. The tension fixing part can also increase the size of the opening formed between the two clamping parts located at the ends of the limiting unit, thereby accommodating wires with larger diameters, so that the wires are interference-fitted with the limiting unit, ensuring that the wires are firmly clamped by the limiting unit and preventing the wires from loosening. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the wire fixing structure in Embodiment 1 of this utility model;

[0025] Figure 2 This is an assembly diagram of the wire fixing structure in Embodiment 1 of this utility model, showing the wire being installed onto the skull fixing surface.

[0026] Figure 3 This is a cross-sectional view of the wire fixing structure in Embodiment 1 of this utility model, showing the wire being installed onto the skull fixing surface;

[0027] Figure 4 This is an assembly diagram of the wire fixing structure in Embodiment 1 of the present invention, showing the installation of the wire onto the skull fixing surface with the grinding groove.

[0028] Figure 5 This is a cross-sectional view of the wire fixing structure in Embodiment 1 of this utility model, showing the wire being installed onto the skull fixing surface with a grinding groove.

[0029] Figure 6 This is a schematic diagram of another structure of the wire fixing structure in Embodiment 1 of this utility model;

[0030] Figure 7 This is a schematic diagram of the wire fixing structure in Embodiment 2 of this utility model;

[0031] Figure 8 This is a schematic diagram of the wire fixing structure in Embodiment 3 of this utility model;

[0032] Figure 9 This is an assembly diagram of the wire fixing structure in Embodiment 4 of this utility model, showing the installation of the wire onto the skull fixing surface.

[0033] Figure 10 This is a schematic diagram of the wire fixing structure in Embodiment 4 of this utility model.

[0034] Figure label:

[0035] 100. Wire fixing structure; 200. Fastener; 300. Skull fixation surface; 301. Bone grinding groove;

[0036] 1. Limiting unit; 2. Fixing unit; 3. Clamping unit; 4. Observation window;

[0037] 11. Connecting part; 12. Clamping part; 121. Arc-shaped limiting groove; 122. Anti-slip structure; 13. Extension part;

[0038] 21. Fixing part; 211. Fixing hole;

[0039] 31. Extension portion; 32. Tightening portion. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] Deep Brain Stimulation (DBS) is a neurosurgical technique that utilizes an IPG (Implantable Pulse Generator), extension leads, and electrode leads. The IPG is connected to the electrode leads via the extension leads. The extension leads, used in conjunction with the IPG, act as the medium for transmitting electrical stimulation, conveying the stimulation generated by the IPG to the electrode leads. Upon receiving the stimulation from the extension leads, the electrode leads deliver the stimulation to specific areas of the brain tissue through multiple electrode contacts. However, due to the lack of proper positioning measures after the electrode leads and extension leads are connected, misalignment of the electrode leads and extension leads can occur during DBS surgery, causing the electrode contacts to deliver stimulation to non-specific brain regions, thus increasing the risk of surgical failure.

[0045] To eliminate the need for manual shaping by the surgeon and to ensure the wire located within the bone groove is compressed and fixed in position on the skull, thus guaranteeing the normal progress of DBS surgery, this embodiment provides a wire fixation structure, which is described below in conjunction with... Figures 1 to 10 The specific content of this embodiment will be described in detail. It should be noted that the left and right directions mentioned in this embodiment refer to... Figure 10 The Y direction in this embodiment refers to the height direction. Figure 10 In the Z direction, the extension direction of the arc-shaped limiting groove mentioned in this embodiment is... Figure 10 The X direction is specified. One end of the extension wire is equipped with a docking module for inserting the electrode wire. After the electrode wire is inserted into the docking module, it is electrically connected to the extension wire. In this embodiment, the wire fixing structure is fixed outside the docking module, thus fixing both the extension wire and the electrode wire.

[0046] Example 1

[0047] In the field of medical surgery, especially in precision surgeries involving brain stimulation, the accurate fixation of leads (such as electrode leads and extension leads) is crucial. For example... Figures 1 to 6 As shown, the wire fixing structure 100 proposed in this embodiment mainly includes two key parts: a limiting unit 1 and a fixing unit 2. The two work together to ensure the stable fixing of the wire on the skull.

[0048] The limiting unit 1, as one of the core components of the lead wire fixing structure 100, includes a connecting part 11 and at least two clamping parts 12. Adjacent clamping parts 12 are connected by the connecting part 11 to form an organic whole. Each clamping part 12 is bent to form an arc-shaped limiting groove 121. These arc-shaped limiting grooves 121, extending along the X direction, act like a "custom-made space" for the lead wire, specifically designed to gather and constrain it. The arc-shaped design is not arbitrary but fully considers the shape characteristics of the lead wire, allowing for better contact with the lead wire surface, providing uniform and stable constraint force, effectively preventing the lead wire from swaying in all directions, and ensuring that the lead wire remains in a stable position throughout the procedure.

[0049] The fixing unit 2 plays a crucial role in tightly connecting the entire wire fixing structure 100 to the skull fixing surface 300. It includes at least two fixing parts 21, precisely positioned at both ends of the limiting unit 1, and each fixing part 21 is tightly connected to a clamping part 12 located at the end of the limiting unit 1. This connection method not only ensures the overall stability of the structure but also allows the fixing unit 2 and the limiting unit 1 to work together to effectively fix the wire. When the wire needs to be installed, the operator simply pulls the two fixing parts 21 outwards, increasing the opening size between the two clamping parts 12 at the ends of the limiting unit 1. This ingenious design allows the wire fixing structure 100 to easily accommodate wires with larger diameters. As the opening size increases, the wire can be smoothly placed into the arc-shaped limiting groove 121 of the limiting unit 1. Subsequently, when the fixing parts 21 are released, the clamping parts 12 return to their original shape under their own elasticity and structural characteristics, thus tightly clamping the wire and achieving an interference fit between the wire and the limiting unit 1. This interference fit ensures that the lead wire is firmly clamped by the limiting unit 1, greatly reducing the risk of lead wire loosening and providing a strong guarantee for the smooth progress of the operation.

[0050] The fixing part 21 is also provided with a fixing hole 211, which provides a convenient way to connect the wire fixing structure 100 to the skull fixing surface 300. During the operation, the fastener 200 can pass through the fixing hole 211 and achieve a firm connection and fixation with the skull fixing surface 300. Through this connection method, the wire fixing structure 100 can stably fix the wire in a specific position on the skull, avoiding positional displacement of the electrode wire and extension wire during the operation. In DBS (deep brain stimulation) surgery, the accuracy of the electrode contact position is crucial to the surgical outcome. If the wire is displaced, it may cause the electrode contact to perform electrical stimulation in a non-specific brain region, which will not only affect the treatment effect of the surgery, but may even cause serious harm to the patient. The wire fixing structure 100 of this embodiment effectively avoids this situation by accurately fixing the wire position, thereby ensuring the normal progress of DBS surgery and improving the success rate and safety of the operation.

[0051] Furthermore, this lead fixation structure 100 possesses excellent compatibility, adapting to different methods used by clinicians to fix leads. (Reference) Figure 4 and Figure 5 As shown, by stretching the fixing portions 21 at both ends of the wire fixing structure 100 outward, the overall height of the wire fixing structure 100 can be reduced. This characteristic allows the structure to perfectly match the overall height of the wire within the skull's grinding groove 301. Clinically, doctors may choose to use or not use the grinding groove 301 to fix the wire, depending on the patient's specific condition and surgical needs. The wire fixing structure 100 of this embodiment can function well in any scenario, greatly expanding its applicability. In scenarios where the grinding groove 301 is used to fix the wire, the wire can be easily placed within the grinding groove 301, and the height of the wire fixing structure 100 can be reduced by stretching to match the height of the wire protruding from the grinding groove 301, ensuring that the wire is firmly fixed and does not compress surrounding tissues. In scenarios where the grinding groove 301 is not designed to fix the wire, the wire fixing structure 100 can still stably fix the wire to the skull through its flexible design, meeting the needs of the surgery.

[0052] In summary, the lead wire fixation structure 100 provided in this embodiment, with its unique limiting unit 1 and fixing unit 2 design, achieves precise fixation and stable constraint of the lead wire. By increasing the opening size of the traction fixing part 21 to accommodate lead wires of different diameters, using the fastener 200 to connect and fix the lead wire position to the skull fixing surface 300, and reducing the overall height by stretching the fixing part 21 to accommodate different fixation scenarios, this lead wire fixation structure 100 has significant technical effects in ensuring smooth operation, improving surgical outcomes and safety, and expanding its applicability, providing a comprehensive and effective solution to the lead wire fixation problem in medical surgery.

[0053] Furthermore, in this embodiment, the arc-shaped limiting groove 121 has an anti-slip structure 122 on its groove wall, providing strong technical support for achieving stable positioning of the object within the arc-shaped limiting groove 121. From a structural perspective, the anti-slip structure 122 can take various forms, including, but not limited to, common and effective forms such as anti-slip protrusions, anti-slip grooves, or anti-slip patterns. Anti-slip protrusions can be small raised particles evenly distributed on the groove wall. These protrusions increase the roughness of the contact surface, significantly increasing the friction between the object and the groove wall when they come into contact. When the object is subjected to external force within the arc-shaped limiting groove 121 and tends to slide, these anti-slip protrusions act like tiny "grippers," tightly "grabbing" the object and effectively preventing it from sliding, thus ensuring the object's positional stability within the arc-shaped limiting groove 121. Anti-slip grooves are grooves of a certain depth and width formed on the groove wall, and their principle is similar to that of anti-slip protrusions. Anti-slip textures are typically continuous or discontinuous patterns formed on the surface of the groove wall through special processing techniques. These textures alter the microstructure of the groove wall surface, transforming the contact between the object and the groove wall from a simple planar contact into a more complex curved surface contact, thereby significantly increasing the coefficient of friction. Regardless of the direction of the external force applied to the object, the anti-slip textures provide sufficient friction to resist slippage, further enhancing the fixing effect of the limiting groove on the object.

[0054] Furthermore, the limiting unit 1 and the fixing unit 2 are integrally molded structures. Integral molding means that the limiting unit 1 and the fixing unit 2 are not manufactured separately and then assembled, but rather formed into an inseparable whole from the initial stage through specific processes. This design fundamentally avoids problems such as connection gaps and loosening that may occur due to the assembly of multiple components, greatly improving the overall structural strength of the wire fixing structure 100. During long-term use, the wire will be subjected to various external forces, such as tension and vibration. The integrally molded structure can better withstand these external forces, effectively preventing structural deformation or damage, thereby ensuring the stability and reliability of the wire fixing and providing a solid guarantee for the normal operation of the wire.

[0055] Furthermore, the lead fixing structure 100 can be made of pure titanium, titanium alloy, stainless steel, nickel-titanium alloy, or plastic. When pure titanium, titanium alloy, stainless steel, or nickel-titanium alloy is used for the lead fixing structure 100, these metals exhibit good biocompatibility. This characteristic is particularly important in fields with extremely high biocompatibility requirements, such as medicine and bioengineering. For example, in implantable medical devices, the lead fixing structure 100 needs to be in long-term contact with human tissue; good biocompatibility can reduce the body's rejection reaction to the material, lower the risk of infection, and improve the safety and reliability of the device. In terms of manufacturing processes, these metal materials can be made using various methods such as stamping, welding, laser cutting, or metal 3D printing.

[0056] If the wire fixing structure 100 is made of plastic materials, such as PEEK (polyetheretherketone), PP (polypropylene), or PC (polycarbonate), these materials are typically manufactured using injection molding. Injection molding offers advantages such as high production efficiency, low cost, and the ability to achieve large-scale production. PEEK materials possess excellent mechanical properties, high-temperature resistance, and chemical stability, maintaining stable performance even in harsh environments, making them suitable for applications requiring high strength and corrosion resistance. PP materials offer good flexibility and processability at a relatively low cost. PC materials, on the other hand, offer high strength, high transparency, and good impact resistance, providing unique advantages in scenarios requiring observation of internal structures or high transparency. Through injection molding, these polymer materials can be precisely molded into the required shape and size of the wire fixing structure 100, meeting the needs of different users.

[0057] Example 2

[0058] This embodiment provides a wire fixing structure 100. Compared with the first embodiment, the basic structure of the wire fixing structure 100 provided in this embodiment is the same as that in the first embodiment, except that the setting of the positioning unit 1 is different. This embodiment will not describe the structure that is the same as that in the first embodiment.

[0059] like Figure 7As shown, the limiting unit 1 includes two clamping parts 12. At the transition point between each clamping part 12 and the connecting part 11, an extension part 13 is provided extending from the clamping part 12 along its own bending path. The bent clamping part 12 itself has a certain ability to gather and constrain the wire. However, to further enhance this constraining effect, an equally bent extension part 13 is added. When the clamping part 12 and the extension part 13 work together, they act like a closely cooperating whole, which can more effectively gather and constrain the wire. This synergistic effect is not only reflected in the initial positioning of the wire, but also in the subsequent continuous and stable maintenance of the wire's position. The presence of the extension part 13 can also significantly increase the contact surface of the limiting unit 1 covering the wire. During the process of limiting the wire, the size of the contact surface is directly related to the constraint force and stability of the wire. The larger the contact surface, the greater the friction between the wire and the limiting unit 1, and the less likely the wire is to shake or shift. By increasing the contact area with the wire, the extension part 13 provides more comprehensive and reliable support for the wire, thereby greatly improving the stability of the wire being limited. Whether in a normal working environment or under certain external interference, the wires can be firmly fixed in the limit unit 1, ensuring the safety and stability of the electrical connection.

[0060] In addition, such as Figure 7 As shown, each clamping part 12 is specially designed with an arc-shaped limiting groove 121, and each arc-shaped limiting groove 121 individually clamps a single wire. This design fully considers the situation where multiple wires are arranged side by side in practical applications. In the traditional limiting unit 1 design, if each wire is not individually limited, interference can easily occur between adjacent wires. This interference not only leads to signal interference between wires, affecting the normal operation of electrical equipment, but may also damage the insulation layer of the wires due to mutual friction and compression, causing safety hazards. However, the arc-shaped limiting groove 121 in this design can accurately fix each wire in a specific position, avoiding direct contact and interference between adjacent wires, and providing a strong guarantee for the safe operation of the wires.

[0061] To further optimize the clamping and wrapping effect of the limiting unit 1 on the wire, for example, the central angle formed by the combination of the clamping part 12 and the extension part 13 is designed to be greater than 180 degrees and less than 360 degrees. When the total angle is greater than 180 degrees and less than 360 degrees, the clamping part 12 and the extension part 13 can form a relatively tight and reasonable wrapping space, which can provide sufficient clamping and wrapping force to ensure the stability of the wire in the limiting unit 1, without causing excessive difficulties for installation and disassembly operations. This design improves the stability of wire limiting while also taking into account ease of use.

[0062] Example 3

[0063] This embodiment provides a wire fixing structure 100. Compared with the first embodiment, the basic structure of the wire fixing structure 100 provided in this embodiment is the same as that in the first embodiment, except that the setting of the positioning unit 1 is different. This embodiment will not describe the structure that is the same as that in the first embodiment.

[0064] Optionally, such as Figure 8 As shown, in specific application scenarios involving parallel layouts of multiple wires, such as Figure 8 As clearly demonstrated, the fixing and limiting of the wire is a crucial technical aspect, directly affecting the stability and reliability of the entire system. In this scenario, the limiting unit 1 employs a unique structure comprising three clamping parts 12. These three clamping parts 12 are not isolated but are sequentially and tightly connected, forming an organic whole. Structurally, the central angle corresponding to the clamping part 12 is set to be no less than 180 degrees. When the clamping part 12 wraps around the wire at this angle, it significantly increases the surface area in contact with the wire. Compared to traditional small-angle clamping structures, this large-area wrapping method allows for more thorough and tighter contact between the clamping part 12 and the wire. From a physical perspective, an increased contact area means increased friction, which is a key factor in ensuring the stable fixing of the wire within the clamping part 12. By increasing the contact surface area, the clamping part 12 can more effectively fix the wire in the predetermined position, effectively preventing the wire from slipping, shifting, or other unstable phenomena when subjected to external forces. This one-to-one fixation method ensures that each lead receives independent and stable support, avoiding loosening caused by interference between leads. For example, in complex medical implant devices, these leads need to be precisely fixed to the skull fixation surface 300 to ensure the proper functioning of the device and the safety of the patient.

[0065] Example 4

[0066] This embodiment provides a wire fixing structure 100. Compared with the first embodiment, the basic structure of the wire fixing structure 100 provided in this embodiment is the same as that in the first embodiment, except that the setting of the positioning unit 1 is different. This embodiment will not describe the structure that is the same as that in the first embodiment.

[0067] Furthermore, such as Figure 9 Combination Figure 10As shown, the central angle corresponding to the clamping part 12 is no greater than 90 degrees, the connecting part 11 is flat, and the arc-shaped limiting grooves 121 of two adjacent clamping parts 12 are connected. By extending the length of the connecting part 11 along the Y direction, the number of wires that the limiting unit 1 can retract and constrain can be significantly increased. In practical applications, it is often necessary to fix multiple wires simultaneously to meet complex electrical connection requirements. Extending the length of the connecting part 11 is equivalent to increasing the accommodating space of the limiting unit 1, allowing more wires to be neatly retracted and constrained. This improves the orderliness of wire fixing.

[0068] Furthermore, a clamping unit 3 extends from the side of the connecting part 11. The clamping unit 3 includes an extension part 31 and two tightening parts 32. The extension part 31 is connected to the connecting part 11, and the two tightening parts 32 are respectively located at both ends of the extension part 31. This symmetrical design allows the clamping unit 3 to maintain balance under force, improving the clamping effect. An observation window 4 is formed between the tightening part and the clamping part 12, providing operators with a direct way to observe the wire fixing status. Through the observation window 4, operators can promptly understand the wire fixing status, such as whether the wire is loose or whether the clamping unit 3 is intact, facilitating timely adjustments and maintenance to ensure the long-term stable operation of the wire fixing structure 100. By adding the clamping unit 3, it can be further tightened against the sheath on the wire, playing a secondary clamping role, increasing the friction between the wire and the fixing structure, and fully ensuring the connection stability between the wire fixing structure 100 and the wire.

[0069] For example, the opening formed between the extension portion 31 and the two tightening portions 32 gradually decreases in the direction approaching the limiting unit 1 (i.e., the X direction). As the size of the opening formed between the extension portion 31 and the two tightening portions 32 decreases, on the one hand, it satisfies the sheath structure on the conductor. Different specifications of conductor sheaths have different sizes and shapes, and the gradually decreasing opening can more accurately fit the sheath, improving the versatility and adaptability of the clamping unit 3. On the other hand, the reduction in the opening size can increase the clamping and wrapping force of the clamping unit 3 on the sheath on the conductor. When the conductor sheath is gradually tightened by the clamping unit 3, the increase in clamping and wrapping force makes the connection between the sheath and the conductor tighter, further improving the reliability of the conductor fixation.

[0070] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A wire fixing structure, characterized in that, include: The limiting unit (1) includes a connecting part (11) and at least two clamping parts (12). Two adjacent clamping parts (12) are connected by the connecting part (11). Each clamping part (12) is bent to form an arc-shaped limiting groove (121). The arc-shaped limiting groove (121) is used to gather and limit the wire. The fixing unit (2) includes at least two fixing parts (21), which are respectively disposed at both ends of the limiting unit (1). The fixing parts (21) are connected to the clamping part (12) located at the end of the limiting unit (1). Stretching the fixing parts (21) outward can reduce the height of the limiting unit (1) for clamping the wire.

2. The conductor fixing structure (100) according to claim 1, characterized in that, The limiting unit (1) includes two clamping parts (12), and at the connection transition between each clamping part (12) and the connecting part (11), the clamping part (12) is provided with an extension part (13) extending along its own bending path direction.

3. The conductor fixing structure (100) according to claim 2, characterized in that, The central angle formed by the clamping part (12) and the extension part (13) after they are combined is greater than 180 degrees and less than 360 degrees.

4. The conductor fixing structure (100) according to claim 1, characterized in that, The limiting unit (1) includes three clamping parts (12), which are connected in sequence; and / or The central angle of the clamping part (12) is not less than 180 degrees.

5. The conductor fixing structure (100) according to claim 1, characterized in that, The central angle of the clamping part (12) is no greater than 90 degrees, the connecting part (11) is flat, and the arc-shaped limiting grooves (121) of two adjacent clamping parts (12) are connected.

6. The conductor fixing structure (100) according to claim 5, characterized in that, A clamping unit (3) is provided on the side of the connecting part (11). The clamping unit (3) includes an extension part (31) and two tightening parts (32). The extension part (31) is connected to the connecting part (11), and the two tightening parts (32) are respectively provided at both ends of the extension part (31).

7. The conductor fixing structure (100) according to claim 6, characterized in that, The opening formed between the extension portion (31) and the two tightening portions (32) gradually decreases in the direction close to the limiting unit (1).

8. The conductor fixing structure (100) according to any one of claims 1-7, characterized in that, The arc-shaped limiting groove (121) has an anti-slip structure (122) on its groove wall; and / or The fixing part (21) is provided with a fixing hole (211), and the fastener (200) can pass through the fixing hole (211) and connect to the skull fixing surface (300).

9. The conductor fixing structure (100) according to claim 8, characterized in that, The limiting unit (1) and the fixing unit (2) are integrally formed structures.

10. The conductor fixing structure (100) according to claim 8, characterized in that, The wire fixing structure (100) is made of pure titanium, titanium alloy, stainless steel, nickel-titanium alloy or plastic.

Images