Electrode lead and nerve stimulation system
By setting a distinguishable identification part in the middle section of the electrode wire, the problem of inaccurate implantation of electrode wire and nucleus in the prior art is solved, and rapid and accurate implantation and matching are achieved, reducing the risk of treatment and improving the surgical comfort of the patient.
Patent Information
- Application Number
- CN202421522205.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Prior art In deep brain electrical stimulation surgery, it is difficult to ensure the accurate implantation and matching of electrode leads to the location of the nucleus, resulting in the possibility of postoperative re-implantation, increasing the risk of treatment and reducing the patient's surgical comfort.
An electrode wire is designed, including a stimulating end, a connecting end and an intermediate section. The intermediate section is provided with a plurality of identification parts that can be distinguished from each other in the circumferential direction. Through these identification parts, the corresponding contact positions can be determined to assist medical staff in ensuring the accurate position and direction of the electrode wire during the implantation process.
Through the design of the identification part, the contact position of the electrode lead can be quickly and accurately identified during the implantation process, ensuring the accuracy and matching efficiency of the implantation position, reducing the risk of re-implantation and improving the surgical comfort of the patient.
Smart Images
Figure CN222917971U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an electrode lead wire and a nerve stimulation system. Background Art
[0002] Deep Brain Stimulation (DBS) is a medical technology that emits electrical pulses through an electrode lead wire implanted in the brain to stimulate specific nuclei in the deep brain, so as to improve the symptoms and quality of life of patients.
[0003] The electrode lead wire is an important part of the implant system, and its characteristic is to achieve electrical stimulation of the patient in a specific direction. This kind of electrode can accurately treat the target nucleus by adjusting the stimulation direction and independently controlling the contact current, with strong pertinence, and at the same time can avoid the brain parts that do not need to be stimulated.
[0004] Currently, during the surgical implantation of the electrode lead wire, it is necessary to identify the matching of the direction of the stimulation contact with the position of the nucleus. Generally, the position of the contact corresponding to the electrode lead wire is distinguished by means of postoperative X-ray imaging, and then compared with the position of the nucleus to confirm the accuracy of the implanted position. By using the postoperative X-ray imaging method to distinguish the contact positions on the electrode lead wire, if the postoperative position confirmation method cannot ensure the accuracy of the one-time implanted position, on the one hand, it may lead to the need for re-implantation after the operation, which is likely to bring higher risks to the patient, and on the other hand, it will also prolong the programming test time of the stimulation contact and reduce the surgical comfort of the patient. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an electrode lead wire and a nerve stimulation system, which are used to ensure the accuracy of the implantation direction and the matching efficiency between the electrode lead wire and the nucleus position, reduce the treatment risk, and improve the surgical comfort of the patient.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] An electrode lead wire, comprising:
[0008] A stimulation end, at least one segmented electrode is provided on the stimulation end, and the segmented electrode includes a plurality of contacts arranged at intervals along the circumferential direction;
[0009] A connection end, a plurality of terminals are provided on the connection end at intervals along the axial direction;
[0010] An intermediate section, one end of the intermediate section is connected to the stimulation end, and the other end is connected to the connection end. A plurality of distinguishable identification parts are arranged on the intermediate section along the circumferential direction, and the plurality of identification parts are respectively arranged in one-to-one correspondence with the positions of the plurality of contacts, and the position of the corresponding contact is determined by the identification part.
[0011] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides and a first sleeve tube in which the plurality of wire guides are sleeved. One end of the wire guide is electrically connected to the contact, and the other end of the wire guide is electrically connected to the terminal. The identification portion is provided on the outer wall of the first sleeve tube.
[0012] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides and a first sleeve tube in which the plurality of wire guides are sleeved. One end of the wire guide is electrically connected to the contact, and the other end of the wire guide is electrically connected to the terminal. The identification portion is provided on the inner wall of the first sleeve tube, and the first sleeve tube is a transparent structure.
[0013] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides and a first sleeve tube in which the plurality of wire guides are sleeved. One end of the wire guide is electrically connected to the contact, and the other end of the wire guide is electrically connected to the terminal. The identification portion and the first sleeve tube are of an integral structure.
[0014] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides, a first sleeve tube in which the plurality of wire guides are sleeved, and a second sleeve tube sleeved outside the first sleeve tube. The identification portion is provided between the first sleeve tube and the second sleeve tube, and the second sleeve tube is a transparent structure.
[0015] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides and a first sleeve tube in which the plurality of wire guides are sleeved. One end of the wire guide is electrically connected to the contact, and the other end of the wire guide is electrically connected to the terminal. The plurality of wire guides are spirally wound to form a wire guide group. The identification portion is provided in the wire guide group, and the first sleeve tube is a transparent structure.
[0016] As an alternative to the electrode lead, the intermediate section includes a plurality of wire guides and a first sleeve tube in which the plurality of wire guides are sleeved. One end of the wire guide is electrically connected to the contact, and the other end of the wire guide is electrically connected to the terminal. Identification blocks are provided on the outer sheath of the wire guide. When the plurality of wire guides are spirally wound to form a wire guide group, the plurality of identification blocks form the identification portion, and the first sleeve tube is a transparent structure.
[0017] As an alternative to the electrode lead, the identification portion extends from one end of the intermediate section to the other end of the intermediate section.
[0018] As an alternative to the electrode lead, the identification portion includes identification regions arranged at intervals in sequence. A plurality of the identification regions extend from one end of the intermediate section to the other end of the intermediate section.
[0019] A nerve stimulation system includes a pulse generator and also includes the electrode lead according to any one of the above solutions.
[0020] The connection end is electrically connected to the pulse generator, or the connection end, the extension wire, and the pulse generator are electrically connected in sequence.
[0021] Advantageous effects:
[0022] In the first aspect of the present utility model, during the implantation surgery of the electrode lead, due to the same structure of the contacts on the stimulation end, medical staff cannot accurately distinguish the types of contacts. In this application, multiple identification parts are arranged in the middle section, and the multiple identification parts can be distinguished from each other. According to the pre-set corresponding rules, the corresponding identification part indicates and identifies the corresponding contact, which can assist medical staff to accurately rotate the required contact and correspond it to the stimulation area of the intracranial nucleus on the premise of having determined the stimulation direction of the corresponding nucleus, ensuring the implantation accuracy and matching efficiency of the electrode lead and the nucleus position, effectively avoiding the use of X-ray imaging to distinguish the contact positions on the electrode lead in the prior art. Once the position is confirmed to be inaccurate after the operation, it may be necessary to re-implant after the operation, increasing the treatment risk and at the same time reducing the comfort of the patient during the operation.
[0023] In the second aspect of the present utility model, the nerve stimulation system configured with this electrode lead can quickly and accurately identify the contact position of the electrode lead during the operation, ensure the accurate implantation position, and improve the treatment comfort of the patient. Description of the Drawings
[0024] Figure 1 is a schematic structural diagram of the electrode lead provided by an embodiment of the present utility model;
[0025] Figure 2 is Figure 1 a partial enlarged view at A;
[0026] Figure 3 is a schematic structural diagram of the electrode lead with a part of the first sleeve hidden provided by an embodiment of the present utility model;
[0027] Figure 4 is Figure 3 a partial enlarged view at B.
[0028] In the figure:
[0029] 1. Stimulation end; 11. Contact;
[0030] 2. Middle section; 21. Guide wire; 22. First sleeve; 23. Second sleeve;
[0031] 3. Identification part;
[0032] 4. Connection end. Detailed implementation manners
[0033] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and not for limiting it. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.
[0034] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for differentiation in description and have no special meanings.
[0037] The following briefly explains the technical field and related terms of the embodiments of the present application.
[0038] Implantable medical systems include implantable nerve electrical stimulation systems, implantable cardiac electrical stimulation systems (also known as cardiac pacemakers), implantable drug delivery systems (Implantable Drug Delivery System, abbreviated as IDDS), and lead transfer systems, etc. Implantable nerve electrical stimulation systems are, for example, deep brain stimulation systems (Deep Brain Stimulation, abbreviated as DBS), implantable cerebral cortex stimulation systems (Cortical Nerve Stimulation, abbreviated as CNS), implantable spinal cord stimulation systems (Spinal Cord Stimulation, abbreviated as SCS), implantable sacral nerve stimulation systems (Sacral Nerve Stimulation, abbreviated as SNS), implantable vagus nerve stimulation systems (Vagus Nerve Stimulation, abbreviated as VNS), etc.
[0039] The implantable nerve electrical stimulation system includes a stimulator (i.e., an implantable nerve stimulator) implanted in a patient's body and a programming device arranged outside the patient's body. That is to say, the stimulator is a medical device, or rather, the medical device includes the stimulator. The relevant neuromodulation technology mainly implants electrodes (the electrodes are in the form of electrode leads, for example) at specific sites (i.e., target points) of the tissues of an organism through stereotactic surgery, and sends electrical pulses to the target points through the electrodes to regulate the electrical activities and functions of the corresponding nerve structures and networks, thereby improving symptoms and relieving pain.
[0040] Please refer to the appendix Figure 1 and the appendix Figure 2 In the first aspect of this embodiment, a kind of electrode lead is involved. This electrode lead is applied in a nerve stimulation system and is used for electrical stimulation treatment in a specific direction in a patient's intracranial cavity. This electrode lead includes a stimulation end 1, a connection end 4, and an intermediate section 2. Among them, the stimulation end 1 is provided with at least one segmented electrode, and the segmented electrode includes a plurality of contacts 11 arranged at intervals along the circumferential direction; the connection end 4 is provided with a number of terminals arranged at intervals along the axial direction; one end of the intermediate section 2 is connected to the stimulation end 1, and the other end is connected to the connection end 4. The intermediate section 2 is provided with a plurality of distinguishable identification parts 3 along the circumferential direction, and the plurality of identification parts 3 are respectively arranged in one-to-one correspondence with the positions of the plurality of contacts 11, and the positions of the corresponding contacts 11 are determined through the identification parts 3.
[0041] The electrode lead is different from the annular electrode and can selectively target the stimulation direction of the brain nucleus, thereby achieving precise electrical stimulation therapy. The stimulation end 1 is provided with a plurality of segmented electrodes along the axial direction, and each segmented electrode includes a plurality of contacts 11. Among them, a plurality of segmented electrodes are arranged at intervals along its axial direction to adapt to the electrical stimulation of different depths of the intracranial nucleus. In this embodiment, three contacts 11 are arranged at equal intervals along the circumferential direction, which can achieve electrical stimulation in three different circumferential directions, thereby improving the adaptability of the electrode lead. Exemplarily, four sets of segmented electrodes are arranged along the axial direction, and each set of segmented electrodes includes 3 contacts 11 arranged along the circumferential direction, that is, the number of contacts 11 on the entire stimulation end 1 reaches 12. The contacts 11 can be in the shape of flakes or dots, etc.
[0042] The contacts 11 are electrically connected to the intermediate section 2. During the implantation surgery of the electrode lead, since the structures of the contacts 11 on the stimulation end 1 are the same, medical staff cannot distinguish the types of the contacts 11. In this embodiment, a plurality of identification parts 3 are arranged on the intermediate section 2, and the plurality of identification parts 3 can be distinguished from each other. According to the pre-set corresponding rules, the corresponding identification part 3 is used to indicate and identify the corresponding contact 11, which can assist medical staff to accurately rotate the required contact 11 and correspond it to the stimulation area of the intracranial nucleus on the premise that the corresponding nucleus stimulation direction has been determined, ensuring the accuracy of the implantation direction and the matching efficiency between the electrode lead and the nucleus position, avoiding the problem in the prior art that the X-ray imaging method is used to distinguish the contact positions on the electrode lead. Once the position is confirmed to be inaccurate after the operation, it is necessary to re-implant, prolonging the stimulation contact programming test time, increasing the treatment risk, and at the same time reducing the comfort of the patient during the operation.
[0043] Optionally, the intermediate section 2 includes a plurality of guide wires 21 and a first sleeve 22 sleeved with a plurality of guide wires 21 therein. One end of the guide wire 21 is electrically connected to the contact 11, and the other end of the guide wire 21 is electrically connected to the terminal. The identification part 3 is arranged on the outer wall of the first sleeve 22.
[0044] In one implementation manner of this embodiment, the intermediate section 2 includes a plurality of guide wires 21 inside. One end of the guide wire 21 is electrically connected to the contact 11 by welding, and the other end of the guide wire 21 is electrically connected to the terminal. The identification part 3 is directly arranged on the outer wall of the first sleeve 22. Specifically, different identification parts 3 can be marking tapes of different colors. The marking tapes can be directly pasted on the outer wall of the first sleeve 22, and the marking tapes are aligned with the contacts 11 to be correspondingly indicated in position. Of course, different identification parts 3 can also adopt different identification patterns. Exemplarily, they can be formed by laser etching, silk screening or ink printing on the identification part 3 or directly formed on the outer wall of the first sleeve 22, and the technical effects of identification and distinction can also be achieved.
[0045] In this embodiment, the first sleeve 22 is a polyurethane tube or a silicone molded tube, ensuring the safety and flexibility of the material.
[0046] Optionally, the middle section 2 includes a plurality of guide wires 21 and a first sleeve 22 in which the plurality of guide wires 21 are sleeved. One end of the guide wire 21 is electrically connected to the contact 11, and the other end of the guide wire 21 is electrically connected to the terminal. The identification portion 3 is provided on the inner wall of the first sleeve 22, and the first sleeve 22 is a transparent structure.
[0047] In one implementation of this embodiment, the identification portion 3 is provided on the inner wall of the first sleeve 22, and at the same time, the first sleeve 22 is a transparent structure, which can facilitate medical staff to clearly observe the identification portion 3 through the first sleeve 22. The identification portion 3 can be a marking tape of different colors.
[0048] Optionally, the middle section 2 includes a plurality of guide wires 21 and a first sleeve 22 in which the plurality of guide wires 21 are sleeved. One end of the guide wire 21 is electrically connected to the contact 11, and one end of the guide wire 21 is electrically connected to the contact 11. The identification portion 3 and the first sleeve 22 are an integral structure.
[0049] In one implementation of this embodiment, the identification portion 3 and the first sleeve 22 can also be an integral structure. Exemplarily, a multi-color silicone extrusion process can be adopted. By reasonably designing the co-extrusion die, when the first sleeve 22 is extruded and formed, the identification portion 3 is also naturally formed, that is, a plurality of marking tapes of different colors are provided on the outer circumferential wall of the first sleeve 22 to correspondingly identify different contacts 11.
[0050] Please continue to combine the attached Figure 3 and the attached Figure 4 , further, a second sleeve 23 is sleeved on the outer periphery of the first sleeve 22, and the second sleeve 23 is a transparent structure.
[0051] For the case where the identification portion 3 and the first sleeve 22 are an integral structure, the middle section 2 is a double-layer structure, and the second sleeve 23 is also a polyurethane tube or a silicone molded tube. The second sleeve 23 is sleeved on the first sleeve 22 to protect the first sleeve 22. At the same time, making the second sleeve 23 a transparent structure can facilitate medical staff to clearly observe the first sleeve 22 and the identification portion 3 formed on the first sleeve 22 through the second sleeve 23.
[0052] Optionally, the middle section 2 includes a plurality of guide wires 21, a first sleeve 22 in which the plurality of guide wires 21 are sleeved, and a second sleeve 23 sleeved outside the first sleeve 22. The identification portion 3 is provided between the first sleeve 22 and the second sleeve 23, and the second sleeve 23 is a transparent structure.
[0053] In one implementation form of this embodiment, the middle section 2 is a double-layer structure. The identification part 3 can be a marking tape with different colors. The marking tape is a strip-shaped tape, which is clamped between the first sleeve 22 and the second sleeve 23. The second sleeve 23 can protect the first sleeve 22 and the marking tape. The second sleeve 23 is a transparent structure, and the marking tape with identification color can be clearly observed.
[0054] Optionally, the middle section 2 includes multiple guide wires 21 and a first sleeve 22 sleeved with multiple guide wires 21 therein. One end of the guide wire 21 is electrically connected to the contact 11. Multiple guide wires 21 are spirally wound to form a guide wire group. The identification part 3 is arranged on the guide wire group, and the first sleeve 22 is a transparent structure.
[0055] In one implementation form of this embodiment, multiple guide wires 21 are spirally wound to form a guide wire group, and then the first sleeve 22 is sleeved on the guide wire group to form a complete middle section 2. By directly setting the identification part 3 on the guide wire group and making the first sleeve 22 a transparent structure, the identification part 3 can be clearly observed. The identification part 3 can be a marking tape and is attached to the guide wire group. Of course, it can also be a pattern formed by laser etching, silk screening or ink printing on the marking tape or directly on the guide wire group.
[0056] Optionally, the middle section 2 includes multiple guide wires 21 and a first sleeve 22 sleeved with multiple guide wires 21 therein. One end of the guide wire 21 is electrically connected to the contact 11. There are identification blocks on the outer sheath of the guide wire 21. When multiple guide wires 21 are spirally wound to form a guide wire group, the multiple identification blocks form the identification part 3, and the first sleeve 22 is a transparent structure.
[0057] In one implementation form of this embodiment, the guide wires 21 are insulated from each other through the outer sheath wrapped around the outside. Before multiple guide wires 21 are spirally wound to form a guide wire group, identification blocks can be set at corresponding positions on the outer sheath of the guide wire 21. The identification blocks can be colored marks pasted on the outer sheath, or of course, patterns formed by laser etching, silk screening or ink printing on the outer sheath. When multiple guide wires 21 are spirally wound to form a guide wire group, the corresponding identification blocks are connected in sequence to form the overall identification part 3. Further, the first sleeve 22 is a transparent structure, and medical staff can clearly observe the identification part 3 arranged on the guide wire group through the first sleeve 22.
[0058] Optionally, the identification part 3 extends from one end of the middle section 2 to the other end of the middle section 2.
[0059] In this embodiment, the identification unit 3 is provided throughout the length direction of the middle section 2, which can facilitate medical staff to quickly distinguish during the implant surgery, improve the identification efficiency, and at the same time avoid the problem that the identification unit 3 cannot be identified due to the wear of the identification features of the identification unit 3 when it is locally provided on the middle section 2.
[0060] Optionally, the identification unit 3 includes identification areas arranged at intervals in sequence, and a plurality of identification areas extend from one end of the middle section 2 to the other end of the middle section 2.
[0061] In one implementation form of this embodiment, a plurality of identification areas for distinction are provided at intervals on the identification unit 3. By providing the identification areas throughout the length direction of the middle section 2, it is also possible to facilitate medical staff to quickly distinguish during the implant surgery and improve the identification efficiency.
[0062] On the other hand, this embodiment also relates to a nerve stimulation system, which includes a pulse generator and the above electrode lead wire. The electrode lead wire is electrically connected to the pulse generator through the connection end 4 or the connection end 4, the extension wire and the pulse generator are electrically connected in sequence.
[0063] The adjustment of the electrical stimulation signal of the stimulation end 1 can be realized through the pulse generator, and the extension wire can adapt to the occasion where the length of the electrode lead wire is insufficient, improving the adaptability.
[0064] The nerve stimulation system configured with this electrode lead wire can quickly and accurately identify the position of the contact point 11 of the electrode lead wire during the operation, ensure the accurate implantation position, and improve the treatment comfort of the patient.
[0065] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. An electrode lead, characterized in that: include: A stimulation end (1), the stimulation end (1) being provided with at least one segmented electrode, the segmented electrode comprising a plurality of contact points (11) arranged at intervals along a circumferential direction; A connecting end (4), wherein the connecting end (4) is provided with a plurality of terminals spaced apart in the axial direction; An intermediate section (2), one end of the intermediate section (2) is connected to the stimulation end (1), and the other end is connected to the connection end (4), the intermediate section (2) is provided with a plurality of identification parts (3) that can be distinguished from each other along the circumferential direction, the plurality of identification parts (3) are respectively arranged in one-to-one correspondence with the positions of the plurality of contact points (11), and the positions of the corresponding contact points (11) are determined by the identification parts (3).
2. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21) and a first sleeve (22) in which the plurality of guide wires (21) are sleeved, one end of the guide wire (21) is electrically connected to the contact (11), the other end of the guide wire (21) is electrically connected to the terminal, and the identification portion (3) is arranged on the outer wall of the first sleeve (22).
3. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21) and a first sleeve (22) in which the plurality of guide wires (21) are sleeved, one end of the guide wire (21) is electrically connected to the contact (11), and the other end of the guide wire (21) is electrically connected to the terminal, the identification portion (3) is arranged on the inner wall of the first sleeve (22), and the first sleeve (22) is a transparent structure.
4. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21) and a first sleeve (22) in which the plurality of guide wires (21) are sleeved, one end of the guide wire (21) is electrically connected to the contact (11), and the other end of the guide wire (21) is electrically connected to the terminal, and the identification portion (3) and the first sleeve (22) are an integrated structure.
5. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21), a first sleeve (22) in which the plurality of guide wires (21) are sleeved, and a second sleeve (23) sleeved outside the first sleeve (22); the identification portion (3) is arranged between the first sleeve (22) and the second sleeve (23); and the second sleeve (23) is a transparent structure.
6. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21) and a first sleeve (22) in which the plurality of guide wires (21) are sleeved, one end of the guide wire (21) is electrically connected to the contact (11), and the other end of the guide wire (21) is electrically connected to the terminal, the plurality of guide wires (21) are spirally wound to form a guide wire group, the identification portion (3) is arranged in the guide wire group, and the first sleeve (22) is a transparent structure.
7. The electrode lead according to claim 1, characterized in that: The middle section (2) comprises a plurality of guide wires (21) and a first sleeve (22) in which the plurality of guide wires (21) are sleeved, one end of the guide wire (21) is electrically connected to the contact (11), and the other end of the guide wire (21) is electrically connected to the terminal, an identification block is provided on the outer sleeve of the guide wire (21), and when the plurality of guide wires (21) are spirally wound to form a guide wire group, the plurality of identification blocks form the identification portion (3), and the first sleeve (22) is a transparent structure.
8. The electrode lead according to any one of claims 1 to 7, characterized in that: The identification portion (3) extends along one end of the middle section (2) to the other end of the middle section (2).
9. The electrode lead according to any one of claims 1 to 7, characterized in that: The identification portion (3) comprises identification areas which are arranged in sequence and at intervals, and a plurality of the identification areas extend from one end of the middle section (2) to the other end of the middle section (2).
10. A neural stimulation system comprising a pulse generator, characterized in that Also comprising the electrode wire according to any one of claims 1 to 9, The connection end (4) is electrically connected to the pulse generator; or the connection end (4), the extension wire and the pulse generator are electrically connected in sequence.