Wire electrically connected with stimulator and stimulation system

Abstract

The invention belongs to the technical field of medical instruments, and discloses a wire electrically connected with a stimulator and a stimulation system. A wire electrically connected with a stimulator comprises an insulating body and a connecting section which is at least partially inserted into the stimulator. The connecting section comprises a conducting ring installed on the insulating body and at least one sealing part, the sealing part abuts against a sealing piece in the stimulator so that the connecting section inserted into the stimulator can be sealed, the device further comprises an air guide structure arranged on the connecting section, and the air guide structure is used for reducing the insertion and extraction force when the connecting section is inserted into the stimulator. Therefore, when the wire is inserted into the stimulator, the operation difficulty of inserting or pulling out the wire can be reduced, the force applied when the wire is inserted or pulled out can be reduced, meanwhile, the treatment process of frequent replacement or position adjustment of the wire can be quickly completed, and unnecessary pain or discomfort brought to a patient is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a wire electrically connected to a stimulator and a stimulation system. Background Art

[0002] In the electrical stimulation therapy system, stimulators are a type of medical device widely used in neuromodulation, pain management, cardiac pacing and other treatments. During their use, the precise and smooth insertion and removal of the wires are important links to ensure the treatment effect and patient comfort.

[0003] In the prior art, in order to prevent body fluids, air or other impurities from entering the interior of the device and to ensure circuit safety and patient safety, the wires are usually sealed and plugged into the stimulator.

[0004] However, when the lead is inserted into the device, its front end gradually enters the interior of the device and increases the space occupied by the device. Due to the seal, the gas in the space cannot be discharged, and the air will be compressed in the space, and the air pressure will increase accordingly. The increased air pressure will directly act on the lead to produce additional plugging and unplugging resistance, which not only increases the difficulty of inserting and unplugging the lead, but may also cause damage to the seal or the lead due to excessive force, thereby affecting the sealing performance and service life of the device. At the same time, the increased plugging and unplugging resistance may also cause unnecessary pain or discomfort to the patient, especially during treatments that require frequent replacement or adjustment of the lead position. Summary of the invention

[0005] The purpose of the present invention is to provide a wire and a stimulation system electrically connected to a stimulator, which solves the problem in the prior art that the wire will compress the air when inserted to generate additional plugging and unplugging resistance, making the plugging and unplugging of the wire more difficult, and may also damage the seal or the wire, affecting the sealing performance and service life of the equipment. At the same time, it can also solve the problem of unnecessary pain or discomfort to the patient during the treatment process when the wire is frequently replaced or adjusted.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a lead electrically connected to a stimulator, comprising:

[0008] An insulating body, a connecting section at least partially inserted into the stimulator, and an air-guiding structure arranged on the connecting section, wherein the connecting section includes a conductive ring installed on the insulating body and at least one sealing portion, the sealing portion abuts against a sealing member in the stimulator to achieve sealing of the connecting section inserted into the stimulator, and the air-guiding structure is used to reduce the insertion and removal force when the connecting section is inserted into the stimulator.

[0009] Optionally, the air guide structure is arranged on the outer surface of the connecting section or passes through the insulating body.

[0010] Optionally, the air guide structure includes a plurality of air guide holes opened in the connecting section, the plurality of air guide holes are distributed at intervals along the axial direction of the connecting section, and the plurality of air guide holes are interconnected.

[0011] Optionally, the air guiding structure includes an air guiding channel opened in the connecting section, and the air guiding channel penetrates the insulating body along the axial direction of the insulating body.

[0012] Optionally, the air guide structure includes an air guide channel opened inside the connecting section and an exhaust hole opened on the side wall of the connecting section, the exhaust hole is arranged close to the sealing portion and connected to the air guide channel, and an air guide port connected to the air guide channel is opened at one end of the connecting section away from the sealing portion.

[0013] Optionally, a plurality of exhaust holes are distributed at intervals.

[0014] Optionally, the air guiding structure comprises an air guiding groove opened on an outer side wall of the connecting section, and the air guiding groove extends along the axial direction of the insulating body.

[0015] Optionally, a plurality of the air guide grooves are distributed at intervals along the axial direction of the connecting section.

[0016] Optionally, the air guide groove includes a first air guide groove and a second air guide groove, the first air guide groove is opened on the outer wall of the insulating body and multiple air guide grooves are arranged at intervals, the second air guide groove is opened on the outer wall of the conductive ring and is axially aligned with the first air guide groove, and the first air guide groove and the second air guide groove are arranged at intervals.

[0017] Optionally, two sealing parts are arranged at intervals, and a locking ring is arranged between the two sealing parts.

[0018] In a second aspect, the present invention also provides a stimulation system, comprising:

[0019] A stimulator, the stimulator having a plug hole, and the plug hole has at least one sealing member;

[0020] And, a wire electrically connected to a stimulator as described in any one of the first aspects passes through the plug hole and is at least partially inserted into the stimulator, and a sealing portion of the wire electrically connected to the stimulator abuts against the sealing member.

[0021] Optionally, two sealing members are arranged at intervals.

[0022] Beneficial effects of the present invention:

[0023] In the first aspect, by arranging the gas-guiding structure on the upper part, when the insulating body and the connecting section are inserted into the stimulator, the space in the stimulator will be gradually occupied and the gas will be compressed. As the insulating body and the connecting section gradually extend into the interior of the stimulator, the gas-guiding structure will be connected to the space in the stimulator, and the compressed gas can be discharged along the gas-guiding structure to reduce the possibility of increased air pressure in the stimulator, and when the connecting section is plugged into the specified position, the sealing part can abut against the sealing part of the stimulator to form a seal. In this way, when the wire is inserted into the stimulator, the gas-guiding structure can discharge the gas in the internal space of the stimulator to reduce the possibility of continuous increase in air pressure in the stimulator, avoid generating additional plug-in resistance, reduce the difficulty of inserting or pulling out the wire, and reduce the force applied when the wire is plugged in and out, thereby reducing the possibility of damage to the sealing part of the stimulator or damage to the wire, effectively extending the service life of the stimulator, and ensuring that the sealing performance of the stimulator is good. At the same time, the frequent replacement or adjustment of the position of the wire can also be completed quickly during the treatment process, thereby avoiding unnecessary pain or discomfort to the patient.

[0024] On the second aspect, when the stimulation system is in use, when the wire is frequently replaced or adjusted, the air pressure in the stimulator can be discharged through the air guide structure of the wire, and the situation that the air pressure continues to increase will not occur, and no additional plug-in resistance will be generated, so that the plug-in difficulty of the wire is relatively small, and the possibility of damage to the seal or the wire can be reduced. At the same time, at least one seal is provided. In the present embodiment, two seals are provided at intervals, and cooperate with the two sealing parts of the wire to ensure that the sealing performance of the stimulator as a whole is better. This is conducive to extending the service life of the stimulator, and the wire can also quickly complete the replacement or position adjustment at the same time, avoiding unnecessary pain or discomfort to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a partial structural schematic diagram of a wire electrically connected to a stimulator in the first embodiment of the present invention;

[0026] Figure 2 is a structural schematic diagram of an air guide structure of a wire electrically connected to a stimulator in a first embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the structure of the stimulation system in the first embodiment of the present invention;

[0028] Figure 4 is a schematic structural diagram of a wire electrically connected to a stimulator in a second embodiment of the present invention;

[0029] Figure 5 is a structural cross-sectional view of a wire electrically connected to a stimulator in a second embodiment of the present invention when it is not fully inserted into the device;

[0030] Figure 6 is a structural cross-sectional view of a wire electrically connected to a stimulator in a third embodiment of the present invention when it is not fully inserted into the device;

[0031] Figure 7 It is a schematic structural diagram of a gas-conducting structure of a wire electrically connected to a stimulator in a fourth embodiment of the present invention, in which the gas-conducting structure is gas-conducting grooves distributed at intervals;

[0032] Figure 8 This is a schematic structural diagram of an air guide groove formed by a first air guide groove and a second air guide groove in a fourth embodiment of the present invention, in which an air guide structure of a wire electrically connected to a stimulator is provided.

[0033] In the figure:

[0034] 1. Insulating body; 11. Conductive ring; 12. Air guide hole; 13. Connecting section; 14. Air guide channel; 141. Exhaust hole; 142. Air guide port; 15. Air guide groove; 15a. First air guide groove; 15b. Second air guide groove; 2. Sealing part; 21. Locking ring; 3. Stimulator; 31. Sealing element; 32. Plug hole. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] The embodiment of the present invention discloses a wire electrically connected to a stimulator and a stimulation system.

[0040] Embodiment 1

[0041] Reference Figures 1 to 3 The wire electrically connected to the stimulator (hereinafter referred to as "wire") includes an insulating body 1 and a connecting section 13 at least partially inserted into the stimulator 3. The connecting section 13 includes a conductive ring 11 installed on the insulating body 1 and at least one sealing portion 2, and the sealing portion 2 is connected to a sealing member 31 in the stimulator 3 (refer to Figure 5 ) abuts against the connecting section 13 inserted into the stimulator 3 to achieve sealing. The wire also includes an air guide structure provided on the connecting section 13, which is used to reduce the insertion and extraction force when the connecting section 13 is inserted into the stimulator 3.

[0042] Specifically, the insulating body 1 can be in the shape of a sleeve, and a wire is arranged inside it, and the wire is electrically connected to the conductive ring 11. The head end of the connecting section 13 is inserted into the stimulator 3, and at least one sealing portion 2 is arranged at the tail end of the connecting section 13. Between the head end and the tail end of the connecting section 13, a plurality of conductive rings 11 are distributed at intervals. A slot-like structure is arranged on the surface or inside of the connecting section 13 to form an air-conducting structure, so that the gas in the device can be discharged when the connecting section 13 is inserted into the stimulator 3. When the connecting section 13 is inserted into the specified position, the sealing portion 2 can fit and abut against the sealing structure on the stimulator 3, thereby smoothly forming a seal.

[0043] By providing the gas-guiding structure, when the insulating body 1 and the connecting section 13 are inserted into the stimulator 3, the space in the stimulator 3 will be gradually occupied and the gas will be compressed. As the insulating body 1 and the connecting section 13 gradually extend into the stimulator 3, the gas-guiding structure will be connected with the space in the stimulator 3, and the compressed gas can be discharged along the gas-guiding structure, thereby reducing the possibility of increased air pressure in the stimulator 3. When the connecting section 13 is plugged into the specified position, the sealing portion 2 can abut against the sealing member 31 of the stimulator 3, thereby forming a seal. In this way, when the wire is inserted into the stimulator 3, the gas-guiding structure can discharge the gas in the internal space of the stimulator 3, so as to reduce the possibility of continuous increase in air pressure in the stimulator 3, avoid generating additional plug-in and pull-out resistance, reduce the difficulty of inserting or pulling out the wire, and reduce the force applied when plugging and pulling out the wire, thereby reducing the possibility of damage to the sealing member 31 of the stimulator 3 or damage to the wire, effectively extending the service life of the stimulator 3, and ensuring that the sealing performance of the stimulator 3 is good. At the same time, frequent replacement or adjustment of the position of the wire can be completed quickly during the treatment process, thereby avoiding unnecessary pain or discomfort to the patient.

[0044] Optionally, the air guide structure is disposed on the outer surface of the connecting section 13 or is disposed through the insulating body 1 .

[0045] Specifically, the gas-guiding structure can be provided only on the outer surface of the connecting section 13, which can be a strip-shaped groove structure, or a plurality of inter-connected hole-shaped structures distributed at intervals. The gas-guiding structure can also be provided through the insulating body 1, and can be provided along the axial direction of the insulating body 1, or along the radial direction of the insulating body 1. The specific opening method of the gas-guiding structure can be designed according to the actual gas-guiding demand, so that the connecting section 13 can be inserted into the stimulator 3 to guide the gas in the stimulator 3.

[0046] Optionally, the air guiding structure includes a plurality of air guiding holes 12 opened in the connecting section 13 , the plurality of air guiding holes 12 are distributed at intervals along the axial direction of the connecting section 13 , and the plurality of air guiding holes 12 are interconnected.

[0047] Specifically, a plurality of air guide holes 12 are provided on the outer wall of the connecting section 13 as an air guide structure, and the plurality of air guide holes 12 are interconnected, so that when the connecting section 13 is inserted into the stimulator 3, after the first air guide hole 12 enters the stimulator 3, the gas in the stimulator 3 can flow through the air guide hole 12 to other air guide holes 12 and be discharged from the stimulator 3. The size, shape and number of the specific air guide holes 12 can be designed according to the depth to which the actual connecting section 13 needs to be inserted, and the present invention does not limit this. In the present embodiment, the air guide holes 12 are circular, and the plurality of air guide holes 12 are equally spaced.

[0048] Optionally, two sealing parts 2 are arranged at intervals, and a locking ring 21 is arranged between the two sealing parts 2.

[0049] Specifically, after the connecting section 13 is inserted into the designated position, a sealing portion 2 is arranged at a position corresponding to the sealing structure of the stimulator 3, and two sealing portions 2 are arranged at intervals, so that the sealing portion 2 close to the connecting section 13 can penetrate into the interior of the stimulator 3, and the other sealing portion 2 is at least partially located inside the stimulator 3, and a locking ring 21 is arranged between the two sealing portions 2. The locking ring 21 can form a tight contact with the locking screw screwed into the interior of the stimulator 3, thereby locking the wire to the stimulator 3.

[0050] The stimulation system includes a stimulator 3 and a wire electrically connected to the stimulator in the above embodiment. The stimulator 3 has a plug hole 32, and the plug hole 32 has at least one sealing member 31; the wire passes through the plug hole 32 and is at least partially inserted into the stimulator 3, and the sealing portion 2 of the wire abuts against the sealing member 31.

[0051] When the stimulation system is in use, when the wire is frequently replaced or adjusted, the air pressure in the stimulator 3 can be discharged through the air guide structure of the wire, and the air pressure will not continue to increase, and no additional plug-in resistance will be generated, making the plug-in and pull-out difficulty of the wire less, and the possibility of damage to the seal 31 or the wire can be reduced. At the same time, at least one seal 31 is provided. In the present embodiment, two seals 31 are arranged at intervals, and cooperate with the two sealing parts 2 of the wire to ensure that the sealing performance of the stimulator 3 as a whole is better. This is conducive to extending the service life of the stimulator 3, and the wire can also quickly complete the replacement or position adjustment, avoiding unnecessary pain or discomfort to the patient.

[0052] Embodiment 2

[0053] Based on the first embodiment, the present embodiment differs from the first embodiment in that the air guide structure is different.

[0054] Reference Figure 4 and Figure 5 Optionally, the air guide structure includes an air guide channel 14 opened in the middle of the connecting section 13 , and the air guide channel 14 penetrates the insulating body 1 along the axial direction of the insulating body 1 .

[0055] Specifically, both ends of the insulating body 1 are open, and an air guide channel 14 is opened through the middle of the insulating body 1, so that when the insulating body 1 is inserted into the stimulator 3, gas can be discharged along the air guide channel 14. At this time, the wire is an extended wire.

[0056] Embodiment 3

[0057] Based on the first embodiment, the present embodiment differs from the first embodiment in that the air guide structure is different.

[0058] Referring to 6, optionally, the air guide structure includes an air guide channel 14 opened inside the connecting section 13 and an exhaust hole 141 opened on the side wall of the connecting section 13, the exhaust hole 141 is arranged close to the sealing portion 2 and connected to the air guide channel 14, and an air guide port 142 connected to the air guide channel 14 is opened at one end of the connecting section 13 away from the sealing portion 2.

[0059] Specifically, the air guide channel 14 is only provided in the connecting section 13, and does not need to penetrate the entire insulating body 1, that is, the air guide channel 14 can extend along the axial direction of the insulating body 1, but the end of the insulating body 1 away from the connecting section 13 is closed, and only one air guide port 142 is provided at the head end of the connecting section 13, so that the gas in the stimulator 3 flows into the air guide channel 14, and an exhaust hole 141 is provided on the side wall of the connecting section 13, and the exhaust hole 141 penetrates the side wall of the connecting section 13, so that the exhaust hole 141 is connected with the air guide channel 14, so that the gas entering the air guide channel 14 can be discharged through the exhaust hole 141. The exhaust hole 141 can be provided close to the sealing portion 2 so that the exhaust hole 141 is far away from the air guide port 142. The exhaust hole 141 can also be provided on the insulating body 1, in which case the wire is a stimulation wire.

[0060] Optionally, a plurality of exhaust holes 141 are distributed at intervals.

[0061] Specifically, the exhaust holes 141 may be distributed at intervals around the circumference of the connecting section 13, or may be distributed at intervals along the radial direction of the connecting section 13 to increase the efficiency of gas exhaust. The specific distribution and number of the exhaust holes 141 may be designed according to the actual pressure changes during the plugging and unplugging process, and this application does not limit this.

[0062] Embodiment 4

[0063] Based on the first embodiment, the difference between this embodiment and the first embodiment lies in the difference in the air guide structure.

[0064] Reference Figure 7 and Figure 8 Optionally, the air guide structure includes an air guide groove 15 opened on the outer side wall of the connecting section 13 , and the air guide groove 15 extends along the axial direction of the insulating body 1 .

[0065] Specifically, the outer wall of the connecting section 13 is concave to form an air guide groove 15, and the air guide groove 15 can be a complete strip-shaped structure, or can be divided into several sections of groove-shaped structures. When the insulating body 1 is plugged into the stimulator 3, when the head end of the air guide groove 15 enters the interior of the stimulator 3, the gas inside the stimulator 3 can be discharged from the stimulator 3 along the air guide groove 15. The air guide groove 15 extends to the sealing portion 2, ensuring that during the entire plugging and unplugging process of the connecting section 13, the air guide groove 15 can play a gas guiding effect within a larger plugging and unplugging range, thereby minimizing the amplitude of the increase in air pressure in the stimulator 3.

[0066] Optionally, a plurality of air guide grooves 15 are spaced apart and distributed along the axial direction of the connecting section 13 .

[0067] Specifically, a plurality of conductive rings 11 are sleeved on the outer wall of the connecting section 13 as contacts, and the plurality of conductive rings 11 are distributed at intervals along the axial direction of the insulating body 1. In order to ensure the integrity of the conductive rings 11, the air guide grooves 15 may not be provided on the conductive rings 11, but only on the outer wall of the connecting section 13, so as to form a plurality of air guide grooves 15 on the outer wall of the connecting section 13. The plurality of air guide grooves 15 may be arranged in a row or distributed around the circumferential direction of the insulating body 1, and the present invention is not limited to this.

[0068] When the connecting section 13 is inserted into the stimulator 3, each time an air guide groove 15 is connected to the space inside the stimulator 3, the gas in the stimulator 3 can be discharged outward through the air guide groove 15, thereby reducing the possibility of continuous increase in air pressure in the stimulator 3 and ensuring that the connecting section 13 can be smoothly inserted into the stimulator 3.

[0069] Optionally, the air guide groove 15 includes a first air guide groove 15a and a second air guide groove 15b, the first air guide groove 15a is opened on the outer wall of the insulating body 1 and multiple air guide grooves are arranged at intervals, the second air guide groove 15b is opened on the outer wall of the conductive ring 11 and is axially aligned with the first air guide groove 15a, and the first air guide groove 15a and the second air guide groove 15b are arranged at intervals.

[0070] Specifically, a second air guide groove 15b is correspondingly opened on the conductive ring 11, and the first air guide groove 15a and the second air guide groove 15b are arranged at intervals. The multiple second air guide grooves 15b and the multiple first air guide grooves 15a can correspond to each other end to end in sequence to form axial alignment, so that the gas in the stimulator 3 can be smoothly discharged from the stimulator 3 along the air guide groove 15.

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A wire electrically connected to the stimulator, Features: include: An insulating body (1), a connecting section (13) at least partially inserted into a stimulator (3), and an air guide structure provided in the connecting section (13); the connecting section (13) comprises a conductive ring (11) mounted on the insulating body (1) and at least one sealing portion (2); the sealing portion (2) abuts against a sealing member (31) in the stimulator (3) so that the connecting section (13) inserted into the stimulator (3) is sealed; the air guide structure is used to reduce the insertion and extraction force when the connecting section (13) is inserted into the stimulator (3).

2. A wire electrically connected to a stimulator according to claim 1, It is characterized in that The air guide structure is arranged on the outer surface of the connecting section (13) or passes through the insulating body (1).

3. A wire electrically connected to a stimulator according to claim 2, It is characterized in that The air guide structure comprises a plurality of air guide holes (12) opened in the connecting section (13), the plurality of air guide holes (12) being distributed at intervals along the axial direction of the connecting section (13), and the plurality of air guide holes (12) being interconnected.

4. A wire electrically connected to a stimulator according to claim 2, It is characterized in that The air guide structure comprises an air guide channel (14) opened in the connecting section (13), and the air guide channel (14) penetrates the insulating body (1) along the axial direction of the insulating body (1).

5. A wire electrically connected to a stimulator according to claim 2, It is characterized in that The air guide structure comprises an air guide channel (14) opened inside the connecting section (13) and an exhaust hole (141) opened on a side wall of the connecting section (13); the exhaust hole (141) is arranged close to the sealing portion (2) and is connected to the air guide channel (14); an air guide port (142) connected to the air guide channel (14) is opened at one end of the connecting section (13) away from the sealing portion (2).

6. A wire electrically connected to a stimulator according to claim 5, It is characterized in that A plurality of exhaust holes (141) are distributed at intervals.

7. A wire electrically connected to a stimulator according to claim 1, It is characterized in that The air guide structure comprises an air guide groove (15) formed on an outer side wall of the connecting section (13), and the air guide groove (15) extends along the axial direction of the insulating body (1).

8. A wire electrically connected to a stimulator according to claim 7, It is characterized in that A plurality of the air guide grooves (15) are distributed at intervals along the axial direction of the connecting section (13).

9. A wire electrically connected to a stimulator according to claim 7, It is characterized in that The air guide groove (15) comprises a first air guide groove (15a) and a second air guide groove (15b); the first air guide groove (15a) is provided on the outer wall of the insulating body (1) and a plurality of the first air guide grooves (15a) are arranged at intervals; the second air guide groove (15b) is provided on the outer wall of the conductive ring (11) and is axially aligned with the first air guide groove (15a); the first air guide groove (15a) and the second air guide groove (15b) are arranged at intervals.

10. A wire electrically connected to a stimulator according to any one of claims 1 to 9, It is characterized in that Two sealing parts (2) are arranged at intervals, and a locking ring (21) is arranged between the two sealing parts (2).

11. Stimulation system, It is characterized in that include: A stimulator (3), the stimulator (3) having a plug hole (32), the plug hole (32) having at least one sealing member (31) therein; A wire electrically connected to a stimulator as claimed in any one of claims 1 to 9 passes through the plug hole (32) and is at least partially inserted into the stimulator (3), and the sealing portion (2) of the wire electrically connected to the stimulator abuts against the sealing member (31).

12. The stimulation system according to claim 11, It is characterized in that Two sealing members (31) are arranged at intervals.

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