Connector assembly, pulse generator, extension lead and implantable electrical stimulation system

Abstract

The application provides a connector assembly, a pulse generator, an extension lead and an implantable electrical stimulation system. The connector assembly is used in the implantable electrical stimulation system. The connector assembly comprises at least one first connector. The first connector comprises a first shell and a first elastic member. The first shell is internally provided with a first cavity. The first shell is provided with a first opening in communication with the first cavity at one end along an axial direction of the first shell. The first opening is configured to allow an external conductive member to extend into the first cavity. The first shell comprises a first sub-shell and a second sub-shell connected in the axial direction. The first sub-shell is a metal structure. The first elastic member is arranged in the first cavity and abuts against the first sub-shell. The first elastic member is configured to be electrically connected with the external conductive member. The second sub-shell is provided with a positioning portion on a peripheral side. The positioning portion is configured to be positioned and matched with an external member. The application is beneficial to improve the positioning accuracy and the use reliability of the connector assembly.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a connector assembly, a pulse generator, an extension lead, and an implantable electrical stimulation system. Background Technology

[0002] Implantable electrical stimulation systems are active implantable medical devices, such as pacemakers, defibrillators, deep brain stimulators, spinal cord stimulators, vagus nerve stimulators, sacral nerve stimulators, gastrointestinal stimulators, and muscle stimulators. When in use, implantable medical devices emit stimulation pulses of a specific frequency to provide long-term stimulation to specific target points, thereby improving the patient's symptoms.

[0003] In implantable electrical stimulation systems, connector assemblies are often used to connect conductive components in the device so that electrical stimulation signals can be transmitted to specific tissues or nerves through the conductive components. However, existing connector assemblies have poor positioning function during assembly, making them inconvenient to position, and are prone to positional displacement during use. Summary of the Invention

[0004] In view of the above problems, this application provides a connector assembly, a pulse generator, an extension wire, and an implantable electrical stimulation system, which helps to improve the positioning accuracy and reliability of the connector assembly.

[0005] In a first aspect, embodiments of this application provide a connector assembly for an implantable electrical stimulation system. The connector assembly includes: at least one first connector, the first connector including a first housing and a first elastic member, the first housing having a first cavity inside, and a first opening communicating with the first cavity at one end along its own axial direction, the first opening being configured to allow an external conductive member to extend into the first cavity; the first housing including a first sub-shell and a second sub-shell connected along the axial direction, the first sub-shell being a metal structure; the first elastic member being disposed in the first cavity and abutting against the first sub-shell, the first elastic member being configured to be electrically connected to the external conductive member; and a positioning portion being provided on the periphery of the second sub-shell, the positioning portion being configured to achieve positioning engagement with the external member.

[0006] Optionally, the other end of the first housing along the axial direction is a closed end face; or, the other end of the first housing along the axial direction is provided with a second opening communicating with the first cavity, the second opening being configured to allow the external conductive member to extend out of the first cavity.

[0007] Optionally, the positioning portion includes a groove, which is formed by the outer peripheral surface of the second sub-shell recessed inward along the radial direction of the first outer shell.

[0008] Optionally, the positioning portion includes a protrusion that protrudes outward from the outer peripheral surface of the second sub-shell along the radial direction of the first outer shell.

[0009] Optionally, along the radial direction of the first outer shell, the radial height difference between the outer peripheral surface of the first sub-shell and the positioning part is H1, where 0.05mm≤H1≤3mm; And / or, along the radial direction of the first outer shell, the radial height difference between the outer peripheral surface of the second sub-shell and the positioning part is H2, 0.05mm≤H2≤3mm.

[0010] Optionally, the outer peripheral surface of the first subshell includes two opposing first planes and a first arc surface connecting the two first planes, wherein the first planes are parallel to the axial direction; And / or, the outer peripheral surface of the second subshell includes two opposing second planes and a second arc surface connecting the two second planes, the second planes being parallel to the axial direction; Along the radial direction of the first housing, the first plane protrudes from the second plane toward the side away from the first cavity.

[0011] Optionally, the positioning part includes a through hole extending through the second sub-shell.

[0012] Secondly, embodiments of this application provide a pulse generator, comprising: a housing; a top cover connected to the housing, the top cover having a first mating portion; and a connector assembly as in any embodiment of the first aspect, the connector assembly being disposed within the top cover, the positioning portion of the connector assembly cooperating with the first mating portion to achieve positioning.

[0013] Thirdly, embodiments of this application provide an extension wire, comprising: a housing having a second mating portion; a connector assembly as in any embodiment of the first aspect, the connector assembly being disposed within the housing, the positioning portion of the connector assembly engaging with the second mating portion to achieve positioning; and a wire body having one end extending into the housing and electrically connected to the connector assembly.

[0014] Thirdly, embodiments of this application provide an implantable electrical stimulation system, including a pulse generator in any embodiment of the second aspect and / or an extension wire in any embodiment of the third aspect.

[0015] The connector assembly provided in this application includes at least one first connector. By configuring the first housing of the first connector to include a first sub-housing and a second sub-housing connected along the axial direction, a first elastic element is provided in the first sub-housing, and a positioning part is provided on the periphery of the second sub-housing. An external conductive member can extend into the first cavity inside the first housing and be electrically connected to the first elastic element to realize the transmission of electrical signals. The positioning part provided on the second sub-housing can be positioned with the external component on which the connector assembly is installed to fix the relative position of the connector assembly and the external component. This allows the first connector to integrate electrical connection and positioning functions, which not only facilitates the positioning of the connector assembly and the external component to improve positioning accuracy, but also effectively reduces the possibility of displacement of the connector assembly during use. This allows the positioning part to have higher structural strength, which is beneficial to further improve the positioning accuracy and reliability of the connector assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 A partial cross-sectional view of an implantable electrical stimulation system provided for some embodiments of this application; Figure 2 A partial cross-sectional view of an implantable electrical stimulation system provided for other embodiments of this application; Figure 3 A partial cross-sectional view of an implantable electrical stimulation system provided for some embodiments of this application; Figure 4 A partial cross-sectional view of a pulse generator provided for some embodiments of this application; Figure 5 A partial cross-sectional view of a pulse generator provided for other embodiments of this application; Figure 6 A partial cross-sectional view of an extension wire provided for some embodiments of this application; Figure 7 This application provides a schematic diagram of the structure of a connector assembly according to some embodiments; Figure 8 A cross-sectional view of a connector assembly provided for some embodiments of this application; Figure 9 This is a schematic diagram illustrating the assembly of a connector assembly and electrode wires according to some embodiments of this application; Figure 10 A cross-sectional view of a connector assembly provided for other embodiments of this application; Figure 11 A cross-sectional view of a connector assembly provided for some embodiments of this application; Figure 12 A cross-sectional view of a connector assembly provided for some embodiments of this application; Figure 13 A cross-sectional view of a connector assembly provided for some embodiments of this application; Figure 14 An exploded view of a connector assembly provided for some embodiments of this application; Figure 15 A cross-sectional view of a first housing in a connector assembly provided for some embodiments of this application; Figure 16 A cross-sectional view of a first housing in a connector assembly provided for other embodiments of this application; Figure 17 This application provides a schematic diagram of the structure of a first housing in a connector assembly, according to other embodiments thereof. Figure 18 A cross-sectional view of a connector assembly provided for other embodiments of this application.

[0018] The attached figures are labeled as follows: 1. Pulse generator; 200. Housing; 300. Top cover; 310. First mating part; 2. Extension wire; 400. Cover; 410. Second mating part; 420. Wire body; 3. Electrode wire; 100, Connector assembly; 100a, First connector assembly; 100b, Second connector assembly; 10, First connector; 10a, First sub-connector; 10b, Second sub-connector; 11, First housing; 101, First cavity; 102, First opening; 103, Second opening; 111, First sub-housing; 1111, First plane; 1112, First arcuate surface; 112. Second subshell; 120. Positioning part; 1201. Groove; 1202. Protrusion; 1203. Through hole; 1121. Second plane; 1122. Second arc surface; 12. First elastic element; 20. First insulating component; 201. Insulating cavity; 202. Annular protrusion; 30. Second connector; 31. Second housing; 301. Second cavity; 32. Second elastic element; 40. Locking element; X, axial direction; Y, radial direction. Detailed Implementation

[0019] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two).

[0025] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other indications of orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] To better understand this application, the following will be combined with... Figures 1 to 18 The connector assembly 100, pulse generator 1, extension wire 2, and implantable electrical stimulation system according to embodiments of this application will be described in detail.

[0028] Please refer to the following: Figures 1 to 6 This application provides an implantable electrical stimulation system, which can be a deep brain stimulation system, spinal cord stimulation system, vagus nerve stimulation system, sacral nerve stimulation system, hypoglossal nerve stimulation system, cardiac pacemaker, or gastrointestinal stimulator, etc. The implantable electrical stimulation system includes an implantable electrical stimulation device and electrode leads 3. The implantable electrical stimulation device is used to generate electrical stimulation signals, which are transmitted to specific tissues or nerves through the electrode leads 3. The electrical stimulation is used to excite, inhibit, or regulate the conduction of the nervous system, thereby achieving the therapeutic effect of restoring or improving the function of the human body.

[0029] Optionally, the implantable electrical stimulation device can be a pulse generator 1, or it can be an implantable wireless receiving stimulation unit, an implantable closed-loop neuromodulation unit, or an implantable signal relay amplification module, etc.

[0030] In some embodiments, depending on the therapy and the application location, the implantable electrical stimulation system may also include an extension lead 2 for connecting the implantable electrical stimulation device and the electrode lead 3, so as to adjust the overall length of the implantable electrical stimulation device after implantation to adapt to the body structure of different patients, reduce the difficulty of replacing broken leads, reduce surgical costs, and at the same time stabilize the conduction of electrical stimulation signals.

[0031] In implantable electrical stimulation systems, connector assemblies are typically used to connect the implantable electrical stimulation device to the electrode leads or extension leads to the electrode leads. However, existing connector assemblies are difficult to position and are prone to positional shifts during use.

[0032] Based on this, this application provides a connector assembly 100 for an implantable electrical stimulation system, please refer to the following: Figures 7 to 18 The connector assembly 100 includes at least one first connector 10. The first connector 10 includes a first housing 11 and a first elastic member 12. The first housing 11 has a first cavity 101 inside. One end of the first housing 11 along its own axial direction X has a first opening 102 communicating with the first cavity 101. The first opening 102 is configured to allow an external conductive member to extend into the first cavity 101. The first housing 11 includes a first sub-housing 111 and a second sub-housing 112 connected along the axial direction X. Both the first sub-housing 111 and the second sub-housing 112 are metal structures. In some other embodiments, the second sub-housing 112 may also be epoxy resin or other heat-resistant transparent polymer materials. The first elastic member 12 is disposed in the first cavity 101 and abuts against the first sub-housing 111. The first elastic member 12 is configured to be electrically connected to the external conductive member. The second sub-housing 112 has a positioning part 120 on its peripheral side, which is configured to achieve positioning engagement with the external member.

[0033] The connector assembly 100 provided in this application embodiment can be used in an implantable electrical stimulation device within an implantable electrical stimulation system, such as... Figure 4 and Figure 5 As shown, the connector assembly 100 can be disposed within the pulse generator 1 to serve as a connection interface for electrical connection between the pulse generator 1 and external conductive components. Of course, as... Figure 6 As shown, the connector assembly 100 provided in this application embodiment can also be used in the extension wire 2 of an implantable electrical stimulation system as a connection interface for electrical connection between the extension wire 2 and an external conductive component.

[0034] In this embodiment, the external conductive component can be the electrode wire 3 or the wire body 420 of the extension wire 2, such as... Figure 2As shown, when the implantable electrical stimulation system includes a pulse generator 1 with a connector assembly 100 according to an embodiment of this application, the external conductive component is an electrode wire 3, and the electrode wire 3 is electrically connected to the first elastic element 12 within the connector assembly 100; as Figure 3 As shown, when the implantable electrical stimulation system includes an extension wire 2 provided with the connector assembly 100 of this application embodiment, the external conductive component is an electrode wire 3, and the electrode wire 3 is electrically connected to the first elastic member 12 within the connector assembly 100; as Figure 1 As shown, when the implantable electrical stimulation system includes both a pulse generator 1 with a connector assembly 100 according to the present application embodiment and an extension wire 2 with a connector assembly 100 according to the present application embodiment, the external conductive components are an electrode wire 3 and a wire body 420. The connector assembly 100 disposed in the pulse generator 1 is electrically connected to the wire body 420 of the extension wire 2, and the connector assembly 100 disposed in the extension wire 2 is electrically connected to the electrode wire 3.

[0035] For ease of understanding, the following description will use an external conductive component as the electrode wire 3. The electrode wire 3 may have 4, 8, 16, 20, 24, 28, or 32 contacts, etc. The first connector assembly 100a will be described as the connector assembly 100 disposed in the pulse generator 1, and the second connector assembly 100b will be described as the connector assembly 100 disposed in the extension wire 2.

[0036] The first outer shell 11 is used to enclose and support the first elastic member 12 disposed inside it. The first outer shell 11 has a first cavity 101 and a first opening 102. The first cavity 101 provides installation space for the first elastic member 12 to protect it, and also provides a space for the insertion and contact of the electrode wire 3. The first elastic member 12 is disposed in the first cavity 101 and abuts against the first sub-shell 111. The electrode wire 3 can extend into the first cavity 101 through the first opening 102 to contact the first elastic member 12, thereby achieving a stable electrical connection between the first elastic member 12 and the electrode wire 3. The axial direction X of the first outer shell 11 can also be understood as the direction in which the electrode wire 3 extends into the first cavity 101.

[0037] The first elastic element 12 possesses conductivity and elastic deformation capability. When the electrode wire 3 extends into the first cavity 101 and contacts the first elastic element 12, the first elastic element 12 undergoes elastic deformation to generate a reverse elastic force. Based on the pressure provided by the first sub-shell 111 on the first elastic element 12, it tightly wraps around or presses against the electrode wire 3, ensuring sufficient contact pressure between the two, thereby achieving a stable and reliable electrical connection. Optionally, the first elastic element 12 can be a spring or a sheet, or other elastic conductive structure, so that the first elastic element 12 can tightly press against the first sub-shell 111 and the electrode wire 3 under the contact action of the first sub-shell 111 and the electrode wire 3, improving the stability of the electrical connection.

[0038] Optionally, the inner circumferential surface of the first sub-shell 111 is recessed towards the outer circumferential surface to form a receiving groove. A portion of the first elastic member 12 is disposed in the first cavity 101 for contact with the electrode wire 3, and another portion is disposed in the receiving groove. The receiving groove is used to limit the first elastic member 12 along the axial direction X and along the radial direction Y, so as to reduce the possibility of displacement of the first elastic member 12 along the axial direction X or along the radial direction Y, thereby improving the reliability of its electrical connection with the electrode wire 3.

[0039] In this embodiment, the inner peripheral surface of the first sub-shell 111 refers to the side surface of the first sub-shell 111 facing the first cavity 101; the outer peripheral surface of the first sub-shell 111 refers to the side surface of the first sub-shell 111 away from the first cavity 101.

[0040] The first outer shell 11 is composed of a first sub-shell 111 and a second sub-shell 112 connected sequentially along the axial direction X. The first sub-shell 111 is used to fix the first elastic element 12, and the second sub-shell 112 is provided with a positioning part 120 for positioning in conjunction with external components. Both the first sub-shell 111 and the second sub-shell 112 are metal structures, which makes the first outer shell 11 have higher mechanical strength and structural rigidity. It is not easy to deform during assembly and use, and has strong structural stability. It can better protect the first elastic element 12 and the electrode wire 3 located inside it, which is conducive to improving the reliability of electrical connection, thereby improving the reliability of pulse generator 1 or extension wire 2 using this connector assembly 100.

[0041] Optionally, the first subshell 111 and the second subshell 112 can be manufactured by machining. The first subshell 111 can be made of metal materials such as stainless steel, titanium alloy, and cobalt alloy, and the second subshell 112 can be made of metal materials such as stainless steel, titanium alloy, and cobalt alloy. The first elastic element 12 can be made of materials such as stainless steel, cobalt alloy, and platinum-iridium alloy.

[0042] The positioning part 120 provided on the second sub-shell 112 is used to form a positioning fit with an external component. The external component can be a pulse generator 1 or an extension wire 2, so that the relative position of the connector assembly 100 when it is assembled with the external component is more accurate. This can effectively reduce the occurrence of problems such as assembly offset and misalignment, thereby improving the positioning accuracy of the connector assembly 100 and the external component, reducing assembly errors, and improving the accuracy of the position of the connector assembly 100 after assembly. This, in turn, helps to improve the reliability of the electrical connection between the connector assembly 100 and the external electrical device, reduces the possibility of poor circuit contact due to positioning deviation, and further improves the reliability and electrical connection stability of the connector assembly 100 and the device using the connector assembly 100.

[0043] Furthermore, after the positioning part 120 forms a positioning fit with the external component, it can limit the relative displacement of the connector assembly 100, reduce the possibility of the connector assembly 100 becoming loose or shifted due to vibration or collision during use, and help improve the stability of the connection between the connector assembly 100 and the electrode wire 3 and the external component, thereby improving the stability of the conductive circuit and the continuity of circuit transmission. In addition, the positioning part 120 not only has a positioning function, but also a guiding function. During assembly, the connector assembly 100 can be quickly aligned with the external component through the positioning part 120 without repeated adjustment of the position, which helps to reduce the assembly difficulty and improve the assembly efficiency.

[0044] "The second sub-shell 112 is provided with a positioning part 120 on its periphery" means that the positioning part 120 is a structure machined and formed on the second sub-shell 112, rather than an independent part installed on the second sub-shell 112. The positioning part 120 is a structure of the second sub-shell 112 itself. That is to say, the positioning part 120 formed on the metal second sub-shell 112 is also a metal structure. This method helps to improve the structural strength and positioning accuracy of the positioning part 120, and the positioning part 120 is not easy to deform during assembly and use, so as to further enhance the strength and positioning accuracy of the positioning part 120 and the positioning fit with the external structure. This can more effectively reduce the possibility of displacement of the connector assembly 100 during use. In addition, the metal structure has better stability and a longer service life.

[0045] "The periphery of the second sub-shell 112" refers to the circumferential side of the second sub-shell 112. Optionally, the positioning part 120 can be a groove structure or a protrusion structure formed on the periphery of the second sub-shell 112, or it can be a radial through hole or a blind hole opened on the periphery of the second sub-shell 112. By setting the positioning part 120 on the periphery of the second sub-shell 112, the possibility of interference between the positioning part 120 and the electrode wire 3 can be reduced. The layout is reasonable, and the size of the connector assembly 100 in the axial X direction can also be reduced, which is beneficial to improving the space utilization of the connector assembly 100.

[0046] The connector assembly 100 provided in this application embodiment integrates electrical connection and positioning functions. By configuring the first outer shell 11 of the first connector 10 as including a first sub-shell 111 and a second sub-shell 112 connected along the axial direction X, and providing a first elastic member 12 in the first sub-shell 111 and a positioning part 120 on the periphery of the second sub-shell 112, the electrode wire 3 can extend into the first cavity 101 in the first outer shell 11 and be electrically connected to the first elastic member 12 to realize the transmission of electrical signals. The positioning part 120 provided on the second sub-shell 112 can be positioned with the external component on which the connector assembly 100 is installed to fix the relative position of the connector assembly 100 and the external component. This facilitates the positioning of the connector assembly 100 and the external component, improves the positioning accuracy, and effectively reduces the possibility of displacement of the connector assembly 100 during use. At the same time, the positioning part 120 is integrally formed by the second sub-shell 112, that is, the positioning part 120 is also a metal structure, which gives the positioning part 120 higher structural strength, which is beneficial to further improve the positioning accuracy and reliability of the connector assembly 100.

[0047] Furthermore, the positioning part 120 is integrally formed with the second sub-shell 112, eliminating the need for additional independent positioning parts and auxiliary positioning materials such as sealant. This simplifies the overall structure of the connector assembly 100, reduces its cost, and makes it more compact, thus improving its integration and space utilization. In addition, by placing the first elastic member 12 inside the first sub-shell 111 and the positioning part 120 on the periphery of the second sub-shell 112, the first sub-shell 111 has more area for electrical connection with external components. This also reduces the impact on the structural strength of the first sub-shell 111 caused by the positioning part 120, further enhancing the protection of the first elastic member 12.

[0048] like Figure 9 As shown, the connector assembly 100 may include a first connector 10, such as Figures 10 to 12As shown, the connector assembly 100 may also include two, three or more first connectors 10. The number of first connectors 10 can be set according to requirements, which helps to improve the flexibility and versatility of the connector assembly 100 and the devices using the connector assembly 100.

[0049] When the connector assembly 100 includes a first connector 10, optionally, the first cavity 101 may be entirely located inside the first sub-shell 111, or the first cavity 101 may include a first sub-cavity disposed inside the first sub-shell 111 and a second sub-cavity disposed inside the second sub-shell 112; optionally, the end of the first outer shell 11 opposite to the first opening 102 along the axial direction X may be a closed end face that closes the first cavity 101, so that the first cavity 101 is a blind hole structure with only the first opening 102, or the end of the first outer shell 11 opposite to the first opening 102 along the axial direction X may be a second opening 103 that communicates with the first cavity 101, so that the first cavity 101 is a through hole structure that passes through along the axial direction X.

[0050] When the connector assembly 100 includes a plurality of first connectors 10, the plurality of first connectors 10 are arranged insulated along the axial direction X. The electrode wire 3 can extend from the first opening 102 of the first connector 10 at the end into the first cavity 101, and then sequentially into the first cavity 101 of the other first connectors 10 to contact the plurality of first elastic elements 12. Optionally, the structures of the plurality of first sub-shells 111 can be the same or different. Optionally, the arrangement directions of the first sub-shells 111 and the second sub-shells 112 in the plurality of first connectors 10 can be the same or different.

[0051] For ease of understanding, the first connector 10 without the second opening 103 will be referred to as the first sub-connector 10a, and the first connector 10 with the second opening 103 will be referred to as the second sub-connector 10b.

[0052] Optionally, the connector assembly 100 may include a first sub-connector 10a and a second sub-connector 10b, or the connector assembly 100 may also include a first sub-connector 10a and a plurality of second sub-connectors 10b.

[0053] In some embodiments, such as Figure 10As shown, the connector assembly 100 includes a first sub-connector 10a and a plurality of second sub-connectors 10b. The first sub-connector 10a and the plurality of second sub-connectors 10b are arranged insulated along the axial direction X. The first sub-connector 10a is disposed at one end of the plurality of second sub-connectors 10b along the axial direction X, so as to realize the communication of the first cavity 101 between the plurality of second sub-connectors 10b and the first cavity 101 between the second sub-connectors 10b and the first sub-connector 10a, so that the electrode wire 3 can pass through the plurality of first cavities 101 in sequence to contact the plurality of first elastic members 12, so that the electrode wire 3 can be smoothly routed in the connector assembly 100.

[0054] In some embodiments, such as Figure 11 As shown, the connector assembly 100 includes a plurality of second sub-connectors 10b, which are arranged in an insulated manner along the axial direction X.

[0055] Optionally, the first sub-shell 111 may have a first opening 102 at one end opposite to the second sub-shell 112 along the axial direction X, or the second sub-shell 112 may have a first opening 102 at one end opposite to the first sub-shell 111 along the axial direction X.

[0056] In some embodiments, the first sub-shell 111 and the second sub-shell 112 can be integrally formed, which is beneficial to improving the production efficiency of the first shell 11, thereby improving the production efficiency of the connector assembly 100.

[0057] like Figure 14 As shown, in some embodiments, the first sub-shell 111 and the second sub-shell 112 can be provided separately and assembled into one unit. This arrangement allows the first sub-shell 111 and the second sub-shell 112 to be processed individually for different functional requirements, reducing processing difficulty and improving processing accuracy. Furthermore, the first elastic element 12 can be installed into the first sub-shell 111 first, and then the first sub-shell 111 and the second sub-shell 112 can be assembled, effectively reducing the assembly difficulty of the first elastic element 12 and improving assembly efficiency. In addition, different first sub-shells 111 and second sub-shells 112 can be assembled according to usage requirements, allowing the assembled first outer shell 11 to have various structures, which improves the flexibility and versatility of the connector assembly 100. Optionally, the first sub-shell 111 and the second sub-shell 112 can be assembled to form the first outer shell 11 by welding, threaded connection, snap-fit ​​connection, or other methods.

[0058] For ease of understanding, the following description assumes that the first cavity 101 comprises two parts, one part being located inside the first sub-shell 111 and the other part being located inside the second sub-shell 112. Along the radial direction Y, the first sub-shell 111 has an outer peripheral surface and an inner peripheral surface disposed opposite to each other. The inner peripheral surface of the first sub-shell 111 refers to the surface of the first sub-shell 111 facing the first cavity 101, and the outer peripheral surface of the first sub-shell 111 refers to the surface of the first sub-shell 111 away from the first cavity 101. Similarly, along the radial direction Y, the second sub-shell 112 has an outer peripheral surface and an inner peripheral surface disposed opposite to each other. The inner peripheral surface of the second sub-shell 112 refers to the surface of the second sub-shell 112 facing the first cavity 101, and the outer peripheral surface of the second sub-shell 112 refers to the surface of the second sub-shell 112 away from the first cavity 101.

[0059] Please see Figure 7 and Figure 15 In some embodiments, the positioning part 120 includes a groove 1201, which is recessed inward along the radial Y direction of the first outer shell 11 and the outer peripheral surface of the second sub-shell 112.

[0060] In other words, the groove 1201 is formed by the recess of the outer peripheral surface of the second sub-shell 112, and the external component may be provided with a protrusion that forms a positioning fit with the groove 1201.

[0061] By configuring the positioning part 120 to include the groove 1201, the groove 1201 will not occupy additional radial Y space, making the structure of the connector assembly 100 more compact. Furthermore, the groove 1201 will not interfere with other components, which can better facilitate the assembly of the connector assembly 100. In addition, it can reduce the material used of the first connector 10, thereby reducing the overall cost and weight of the connector assembly 100, thus improving the economy and lightweight performance of the connector assembly 100.

[0062] Optionally, the groove 1201 can be arranged in a full circle along the circumference of the second sub-shell 112, so that the protrusions of the external components can form a positioning fit with the groove 1201 from any circumferential position, which is beneficial to improving the convenience and fault tolerance during assembly. At the same time, the annular design of the groove 1201 can also make it more evenly distributed in the circumference of the second sub-shell 112, which can effectively reduce the problem of local stress concentration in the second sub-shell 112, and is beneficial to enhancing the reliability and service life of the connector assembly 100. In addition, the annular groove 1201 can be formed in one step on the circumference of the second sub-shell 112 by machining methods such as turning, which is convenient for processing, helps to improve production efficiency and improve the dimensional consistency of the groove 1201.

[0063] Optionally, multiple grooves 1201 can be provided, with multiple grooves 1201 distributed at intervals along the outer peripheral surface of the second sub-shell 112, which can enhance the structural strength of the second sub-shell 112 while improving the positioning effect.

[0064] Please see Figure 16 In some embodiments, the positioning part 120 includes a protrusion 1202 that protrudes outward along the radial direction Y of the first outer shell 11 and the outer peripheral surface of the second sub-shell 112.

[0065] In other words, the protrusion 1202 is formed by the outer periphery of the second subshell 112 protruding outward, and the external component may be provided with a recess that can form a positioning fit with the protrusion 1202.

[0066] By configuring the positioning part 120 to include a protrusion 1202, the protrusion 1202 can increase the structural strength and rigidity of the second sub-shell 112, making the connector assembly 100 less prone to damage during use. Furthermore, the protrusion 1202, being a metal structure, can better improve the positioning effect and further reduce the possibility of relative displacement of the connector assembly 100.

[0067] Optionally, the protrusion 1202 can be arranged in a complete circle along the circumference of the second sub-shell 112, so that the recess of the external component can form a positioning fit with the protrusion 1202 from any circumferential position. This is beneficial to improve the convenience and fault tolerance during assembly. At the same time, the annular design of the protrusion 1202 can also make it more evenly distributed in the circumference of the second sub-shell 112, which can effectively reduce the problem of local stress concentration in the second sub-shell 112, and is beneficial to enhance the reliability and service life of the connector assembly 100. In addition, the annular protrusion 1202 can be processed by one-time stamping and other processes, which is convenient for processing, helps to improve production efficiency and improve the consistency of the size of the protrusion 1202.

[0068] Optionally, the protrusions 1202 can also be configured as multiple protrusions, which are distributed at intervals along the outer peripheral surface of the second sub-shell 112. This can improve the positioning effect while reducing the material cost and weight of the second sub-shell 112.

[0069] Please see Figure 17 In some embodiments, the positioning part 120 includes a through hole 1203 extending through the second sub-shell 112.

[0070] In other words, the through hole 1203 extends between the outer and inner circumferential surfaces of the second sub-shell 112, and the axis of the through hole 1203 intersects with the axis of the first cavity 101. The external components may be provided with structures such as positioning pins that can form a positioning fit with the through hole 1203.

[0071] The via 1203 is a metal hole directly machined on the second sub-shell 112. It has a simple structure, is easy to process, and does not occupy additional radial Y space, making the structure of the connector assembly 100 more compact. The via 1203 will not interfere with other components, which can better facilitate the assembly of the connector assembly 100. At the same time, it can also reduce the material used in the first connector 10, thereby reducing the overall cost and weight of the connector assembly 100, thus improving the economy and lightweight performance of the connector assembly 100. In addition, the via 1203 will not protrude from or be recessed from the outer peripheral surface of the second sub-shell 112, making the overall shape of the second sub-shell 112 more flat.

[0072] Optionally, the via 1203 can be set to one, or the via 1203 can be set to multiple. Multiple vias 1203 are distributed at intervals along the outer peripheral surface of the second sub-shell 112, which can improve the positioning effect and reduce the impact on the structural strength of the second sub-shell 112.

[0073] In this embodiment, the positioning part 120 can be flexibly configured according to the structure of the external component. The positioning part 120 may include only the protrusion 1202, the groove 1201 or the through hole 1203. The positioning part 120 may also be a combination of any two or three of the protrusion 1202, the groove 1201 and the through hole 1203, which is beneficial to improving the versatility and diversity of the connector assembly 100.

[0074] Please see Figure 7 and Figure 8 In some embodiments, the other end of the first housing 11 along the axial direction X is a closed end face.

[0075] When the first connector 10 is the first sub-connector 10a, its first housing 11 can be configured to have a first opening 102 only at one end in the axial direction X, so that the first cavity 101 is a non-through blind hole structure. The first opening 102 and the closed end face of the first housing 11 are arranged opposite to each other along the axial direction X. By setting it in this way, external dust and other impurities can be effectively blocked from entering the first cavity 101 from the other end of the first housing 11 along the axial direction X. This helps to improve the cleanliness of the contact area between the first elastic element 12 and the electrode wire 3, reduce the possibility of poor electrical connection due to impurity contamination, and also helps to improve the structural strength and overall rigidity of the second sub-housing 112, so as to enhance the overall reliability of the first sub-connector 10a and the connector assembly 100.

[0076] Please see Figure 18 In some embodiments, the other end of the first housing 11 along the axial direction X is provided with a second opening 103 that communicates with the first cavity 101, and the second opening 103 is configured to allow an external conductive member to extend out of the first cavity 101.

[0077] When the first connector 10 is the second sub-connector 10b, its first housing 11 can be configured to have a first opening 102 and a second opening 103 at both ends of the axial direction X, so that the first cavity 101 is a through structure, which can effectively reduce the assembly difficulty of the first elastic member 12, and also effectively reduce the overall weight and material cost of the first sub-connector 10a and the connector assembly 100.

[0078] Optionally, the first sub-shell 111 is provided with a first opening 102, and the second sub-shell 112 is provided with a second opening 103; or, the first sub-shell 111 is provided with a first opening 102, and the end of the second sub-shell 112 opposite to the first sub-shell 111 along the axial direction X is a closed end face; or, the second sub-shell 112 is provided with a first opening 102, and the first sub-shell 111 is provided with a second opening 103; or, the second sub-shell 112 is provided with a first opening 102, and the end of the first sub-shell 111 opposite to the second sub-shell 112 along the axial direction X is a closed end face.

[0079] Please see Figure 15 and Figure 16 In some embodiments, the positioning part 120 has a dimension L along the axial direction X, where 0.1mm ≤ L ≤ 10mm.

[0080] When the positioning part 120 is a groove 1201, the average value of multiple dimensions of the bottom wall or opening of the groove 1201 in the axial direction X is L; when the positioning part 120 is a protrusion 1202, the average value of multiple dimensions between the two end faces of the protrusion 1202 in the axial direction X is L; when the positioning part 120 is a through hole 1203, the average value of multiple dimensions between the two hole walls of the through hole 1203 in the axial direction X is L.

[0081] As an example, the value of L can be 0.1mm, 0.2mm, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0082] If the axial length of the positioning part 120 in the axial direction is set too small, i.e., L < 0.1 mm, it will be difficult to process the positioning part 120 on the second sub-shell 112, and it will also reduce the positioning and cooperation effect between the positioning part 120 and the external component, making it easy for the connector assembly 100 to deviate during use. On the other hand, if the length of the positioning part 120 in the axial direction is set too large, i.e., L > 10 mm, it will increase the size of the second sub-shell 112 in the axial direction, thereby increasing the overall size of the first shell 11, and thus increasing the space occupied by the first connector 10.

[0083] Therefore, by setting the value of the dimension L of the positioning part 120 along the axial direction X between 0.1mm and 10mm, including the two endpoint values ​​of 0.1mm and 10mm, it is not only convenient to process and form the positioning part 120, thereby reducing the manufacturing difficulty and improving the production efficiency of the connector assembly 100, but also helps to improve the positioning effect of the connector assembly 100, reduce the possibility of its displacement during use, thereby improving the reliability of the connector assembly 100. In addition, it can also effectively reduce the overall structural size of the connector assembly 100, thereby improving the structural compactness of the connector assembly 100.

[0084] Optionally, 2mm ≤ L ≤ 9mm.

[0085] Alternatively, 3mm ≤ L ≤ 8mm.

[0086] Please see Figure 15 and Figure 16 In some embodiments, along the radial direction Y of the first outer shell 11, the radial height difference between the outer peripheral surface of the first sub-shell 111 and the positioning part 120 is H1, where 0.05mm≤H1≤3mm.

[0087] When the positioning part 120 is a groove 1201, the average value of multiple dimensions of the bottom wall of the groove 1201 and the outer peripheral surface of the first sub-shell 111 along the radial Y direction is H1; when the positioning part 120 is a protrusion 1202, the average value of multiple dimensions of the top end of the protrusion 1202 and the outer peripheral surface of the first sub-shell 111 along the radial Y direction is H1; when the positioning part 120 is a through hole 1203, the average value of multiple dimensions of any opening of the through hole 1203 along the radial Y direction and the outer peripheral surface of the first sub-shell 111 along the radial Y direction is H1.

[0088] As an example, the value of H1 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.5mm, 0.7mm, 1mm, 1.2mm, 1.5mm, 1.7mm, 2mm, 2.2mm, 2.5mm, 2.7mm, 3mm, etc.

[0089] If the value of H1 is set too small, i.e., H1 < 0.05 mm, the positioning part 120 will be not obvious, making it difficult to position and prone to failure. If the value of H1 is set too large, i.e., H1 > 3 mm, stress concentration will easily occur, and cracks or deformations will easily appear when the second sub-shell 112 is subjected to force.

[0090] Therefore, by setting the radial height difference H1 between the outer peripheral surface of the first sub-shell 111 and the positioning part 120 to between 0.05mm and 3mm, including the two endpoint values ​​of 0.05mm and 3mm, a suitable radial height difference can be formed between the positioning part 120 and the first outer surface of the first sub-shell 111. This not only enables the positioning part 120 to have a reliable positioning fit with the external component, but also improves the reliability of the structure of the first shell 11 itself, thereby helping to improve the structural reliability of the connector assembly 100.

[0091] Optionally, 0.1mm ≤ H1 ≤ 2mm.

[0092] Further optionally, 0.5mm ≤ H1 ≤ 1.5mm.

[0093] Please continue reading. Figure 15 and Figure 16 In some embodiments, along the radial Y direction of the first outer shell 11, the radial height difference H2 between the outer peripheral surface of the second sub-shell 112 and the positioning part 120 is 0.05mm≤H2≤3mm.

[0094] When the positioning part 120 is a groove 1201, the average value of the multiple dimensions of the bottom wall of the groove 1201 and the outer peripheral surface of the second sub-shell 112 along the radial Y direction is H2; when the positioning part 120 is a protrusion 1202, the average value of the multiple dimensions of the top end of the protrusion 1202 and the outer peripheral surface of the second sub-shell 112 along the radial Y direction is H2; when the positioning part 120 is a through hole 1203, the average value of the multiple dimensions of any opening of the through hole 1203 along the radial Y direction and the outer peripheral surface of the second sub-shell 112 along the radial Y direction is H2.

[0095] As an example, the value of H2 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.5mm, 0.7mm, 1mm, 1.2mm, 1.5mm, 1.7mm, 2mm, 2.2mm, 2.5mm, 2.7mm, 3mm, etc.

[0096] If the value of H2 is set too small, i.e., H2 < 0.05 mm, the positioning part 120 will be not obvious, making it difficult to position and prone to failure. If the value of H2 is set too large, i.e., H2 > 3 mm, stress concentration will easily occur, and cracks or deformations will easily appear when the second sub-shell 112 is subjected to force.

[0097] Therefore, by setting the radial height difference H2 between the outer peripheral surface of the second sub-shell 112 and the positioning part 120 to between 0.05mm and 3mm, including the two endpoint values ​​of 0.05mm and 3mm, a suitable radial height difference can be formed between the positioning part 120 and the second outer surface of the second sub-shell 112. This not only enables the positioning part 120 to have a reliable positioning fit with the external component, but also improves the reliability of the structure of the first shell 11 itself, thereby helping to improve the structural reliability of the connector assembly 100.

[0098] Optionally, 0.1mm ≤ H2 ≤ 2mm.

[0099] Further optionally, 0.5mm ≤ H2 ≤ 1.5mm.

[0100] Please see Figure 7 In some embodiments, the outer peripheral surface of the first subshell 111 includes two opposing first planes 1111 and a first arc surface 1112 connecting the two first planes 1111, the first planes 1111 being parallel to the axial direction X.

[0101] The outer peripheral surface of the first sub-shell 111 is composed of two first planes 1111 and two first arc surfaces 1112. The first planes 1111 and the first arc surfaces 1112 are alternately connected, and both first planes 1111 are parallel to the axial direction X. This arrangement allows the first shell 11 to form a circumferential limit when assembled with external components, effectively reducing the possibility of circumferential rotation of the first connector 10. This is beneficial to improving the positioning reliability of the connector assembly 100, thereby improving the stability of the electrical connection between the connector assembly 100 and the electrode wires 3 and external electrical connection devices. Furthermore, the arrangement of the first planes 1111 facilitates clamping, transportation, and assembly, which is beneficial to improving the positioning accuracy and ease of operation during installation. The arrangement of the first arc surfaces 1112 makes the first sub-shell 111 transition smoothly, which can effectively reduce stress concentration, improve the structural strength and service life of the first sub-shell 111, and thus improve the reliability of the connector assembly 100.

[0102] Please see Figure 7 In some embodiments, the outer peripheral surface of the second subshell 112 includes two opposing second planes 1121 and a second arc surface 1122 connecting the two second planes 1121, the second planes 1121 being parallel to the axial direction X.

[0103] The outer peripheral surface of the second sub-shell 112 is composed of two second planes 1121 and two second arc surfaces 1122. The second planes 1121 and the second arc surfaces 1122 are alternately connected, and both second planes 1121 are parallel to the axial direction X. This arrangement allows the second sub-shell 112 to form a circumferential limit when assembled with external components, effectively reducing the possibility of circumferential rotation of the first connector 10. This improves the positioning reliability of the connector assembly 100, thereby improving the stability of the electrical connection between the connector assembly 100 and the electrode wires 3 and external electrical connection devices. Furthermore, the second planes 1121 facilitate clamping, transportation, and assembly, improving the positioning accuracy and ease of operation during installation. The second arc surfaces 1122 allow for a smooth transition of the second sub-shell 112, effectively reducing stress concentration and improving the structural strength and service life of the second sub-shell 112, thus enhancing the reliability of the connector assembly 100.

[0104] Optionally, a positioning part 120 is provided between the first plane 1111 and the second plane 1121 along the axial direction X.

[0105] Optionally, a positioning part 120 is provided between the first arc surface 1112 and the second arc surface 1122 along the axial direction X.

[0106] Please see Figure 15 and Figure 16 In some embodiments, the first plane 1111 protrudes radially Y toward the side away from the first cavity 101 from the second plane 1121.

[0107] In other words, relative to the axis of the first outer shell 11, the position of the first plane 1111 along the radial Y is higher than the position of the second plane 1121 along the radial Y. Alternatively, it can be understood that the distance between the first plane 1111 and the axis of the first outer shell 11 in the radial Y direction is greater than the distance between the second plane 1121 and the axis of the first outer shell 11.

[0108] This configuration allows the first plane 1111 and the second plane 1121 to form a radial stepped structure, which facilitates assembly and avoidance, reduces the possibility of assembly interference, facilitates the routing of electrical connection wires, and also helps to reduce the material usage and weight of the first connector 10.

[0109] Alternatively, the first plane 1111 and the second plane 1121 may also be located in the same extending plane, that is, the first plane 1111 and the second plane 1121 do not have a height difference in the radial Y direction.

[0110] Please see Figures 9 to 13In some embodiments, the connector assembly 100 further includes at least one first insulating member 20, the first insulating member 20 having an insulating cavity 201 inside, the insulating cavity 201 communicating with the first cavity 101 along the axial direction X, and the first connector 10 having the first insulating member 20 at at least one end along the axial direction X.

[0111] The connector assembly 100 may consist of at least one first insulating member 20 and at least one first connector 10. The first insulating member 20 and the first connector 10 are arranged along the axial direction X. By providing the first insulating member 20 at at least one end of the first connector 10 along the axial direction X and connecting the insulating cavity 201 of the insulating member with the first cavity 101, the electrode wire 3 can extend into the first cavity 101 through the insulating cavity 201, thereby providing a insertion guide space for the electrode wire 3. It can also achieve electrical insulation between the electrode wire 3 and the end of the first housing 11 along the axial direction X, reducing the risk of short circuit caused by contact between the electrode wire 3 and the first housing 11, thereby improving the reliability and electrical connection stability of the connector assembly 100.

[0112] In some embodiments, the connector assembly 100 includes a first connector 10. The first connector 10 has a first insulating member 20 at one end with a first opening 102 along the axial direction X. When there is only one first connector 10, the first insulating member 20 is disposed at the end with the first opening 102, which can provide insulation protection for the end of the first connector 10 facing the first opening 102, reduce the contact and conduction between the electrode wire 3 and the end of the first sub-shell 111 facing the first opening 102, and improve the reliability of the connector assembly 100.

[0113] In some embodiments, the connector assembly 100 includes a plurality of first connectors 10 arranged along the axial direction X. A first insulating member 20 is disposed between two adjacent first connectors 10, and the first connector 10 located at the end of the plurality of first connectors 10 has the first insulating member 20 on the side facing the first opening 102. When there are multiple first connectors 10, the first connector 10 is disposed between two adjacent first insulating members 20, which can isolate and insulate adjacent first housings 11 from each other, reducing the possibility of short circuits or signal interference caused by mutual conduction between multiple first housings 11, thereby improving the reliability of the connector assembly 100.

[0114] Optionally, the first insulating element 20 can be made of materials with good insulation and elasticity, such as rubber, silicone, or polytetrafluoroethylene, so that it not only has good insulation properties but also acts as a buffer to reduce collision and wear with the first connector 10 during assembly or use, which is beneficial to improving the service life of the connector assembly 100.

[0115] like Figure 9As shown, in some embodiments, the first insulating member 20 has an annular protrusion 202 on the side facing the insulating cavity 201, and the annular protrusion 202 is used to abut against an external conductive member.

[0116] By providing an annular protrusion 202 on the inner circumferential surface of the first insulating member 20, it can abut against the outer circumference of the electrode wire 3. This not only forms a radial clamping and positioning of the electrode wire 3, reducing the possibility of the electrode wire 3 shaking or shifting during insertion and use, but also forms a near-sealed fit structure between the insulating cavity 201 and the electrode wire 3, effectively preventing dust, liquid and other impurities from entering the interior of the first cavity 101, keeping the conductive contact area inside the first cavity 101 clean, and reducing the risk of poor contact or short circuit.

[0117] Please see Figure 9 , Figure 12 and Figure 13 In some embodiments, the connector assembly 100 further includes at least one second connector 30 along the axial direction X. Adjacent first connectors 10 and second connectors 30 are insulated from each other. The second connector 30 includes a second housing 31 and a second elastic member 32. The interior of the second housing 31 is provided with a second cavity 301, which is connected to the first cavity 101 along the axial direction X. The second elastic member 32 is disposed in the second cavity 301 and abuts against the second housing 31. The second elastic member 32 is configured to be electrically connected to an external conductive member.

[0118] The second outer shell 31 is used to enclose and support the second elastic member 32 disposed inside it. The second outer shell 31 has a second cavity 301, which provides installation space for the second elastic member 32 to protect it, and also provides a space for the insertion and contact of the external conductive component (electrode wire 3 or wire body 420). The second elastic member 32 is disposed in the second cavity 301 and abuts against the second outer shell 31. The external conductive component can extend into the second cavity 301 and contact the second elastic member 32, thereby realizing a stable electrical connection between the second elastic member 32 and the external conductive component. The second outer shell 31 has a structure in which both ends along the axial direction X have openings that communicate with the second cavity 301.

[0119] The second outer shell 31 is a metal structure. Optionally, the first outer shell 11 and the second outer shell 31 can be made of the same material, or they can be made of different materials.

[0120] Optionally, the second housing 31 has a ring structure and does not have a positioning part 120, making its shape simpler and easier to process and manufacture. This is beneficial to improving production efficiency and reducing manufacturing costs. In addition, it can also reduce the size of the second connector 30 in the axial X direction, thereby reducing the overall weight and cost of the connector assembly 100.

[0121] The second elastic element 32 has electrical conductivity and elastic deformation capability. Optionally, the first elastic element 12 and the second elastic element 32 can have the same structure, or they can have different structures. Optionally, the first elastic element 12 and the second elastic element 32 can be made of the same material, or they can be made of different materials.

[0122] The connector assembly 100 provided in this application embodiment can be configured according to requirements in terms of the number, position, and arrangement order of the first connector 10 and the second connector 30 along the axial direction X, so as to improve the flexibility and versatility of the connector assembly 100. At least one first connector 10 and at least one second connector 30 are arranged along the axial direction X. A first insulating member 20 is provided between two adjacent first connectors 10, or between two adjacent second connectors 30, or between adjacent first connectors 10 and second connectors 30. By providing a positioning part 120 on the periphery of the first connector 10 and not providing a positioning part 120 on the second connector 30, the connector assembly 100 can improve the positioning accuracy and reduce the possibility of displacement during use, while improving the processing efficiency of the connector assembly 100, making its overall structure more compact, and improving the space utilization of the connector assembly 100.

[0123] In some embodiments, such as Figure 12 As shown, the connector assembly 100 may include a first sub-connector 10a, a second sub-connector 10b, and a second connector 30. The number of first sub-connectors 10a is one. Optionally, the number of second sub-connectors 10b may be one or more. The number of second connectors 30 may be one or more.

[0124] In some embodiments, connector assembly 100 may include a second sub-connector 10b and a second connector 30. Optionally, the number of second sub-connectors 10b may be one or more, and the number of second connectors 30 may be one or more.

[0125] The connector assembly 100 includes a first sub-connector 10a and a plurality of second sub-connectors 10b. The first sub-connector 10a and the plurality of second sub-connectors 10b are arranged insulated along the axial direction X. The first sub-connector 10a is disposed at one end of the plurality of second sub-connectors 10b along the axial direction X, so as to realize the communication of the first cavity 101 between the plurality of second sub-connectors 10b and the first cavity 101 between the second sub-connectors 10b and the first sub-connector 10a, so that the electrode wire 3 can pass through the plurality of first cavities 101 in sequence to contact the plurality of first elastic members 12, and so that the electrode wire 3 can be smoothly routed in the connector assembly 100.

[0126] In some embodiments, such as Figure 11As shown, the connector assembly 100 includes a plurality of second sub-connectors 10b, which are arranged in an insulated manner along the axial direction X.

[0127] Please see Figure 6 In some embodiments, the connector assembly 100 further includes a locking member 40, which has an electrode through hole that allows the electrode wire 3 to pass through and a locking hole that communicates with the electrode through hole. The locking member 40 includes connecting parts such as screws or bolts. The connecting parts such as screws or bolts cooperate with the locking hole and press against the electrode wire 3 in the electrode through hole to lock the electrode wire 3.

[0128] Please see Figure 4 and Figure 5 This application also provides a pulse generator 1, including a housing 200, a top cover 300, and a connector assembly 100 as provided in any of the above embodiments. The top cover 300 is connected to the housing 200 and has a first mating part 310. The connector assembly 100 is disposed inside the top cover 300, and the positioning part 120 of the connector assembly 100 cooperates with the first mating part 310 to achieve positioning.

[0129] The pulse generator 1 can be implanted in the body to generate stimulation pulses. The housing 200 includes a housing body and a feedthrough connector disposed on the top of the housing body. The circuit board inside the housing 200 transmits the stimulation signal to the connector assembly 100 inside the top cover 300 through the feedthrough connector. The connector assembly 100 inside the top cover 300 is electrically connected to the electrode wire 3 to output the stimulation signal to the target location in the brain, thereby achieving the purpose of treatment.

[0130] Due to human activity, the electrode wire 3 will be stretched to a certain extent. By setting a positioning part 120 on the connector assembly 100 and setting a first mating part 310 that cooperates with the positioning part 120 in the top cover 300, the position of the connector assembly 100 in the top cover 300 can be fixed. This reduces the possibility that the connector assembly 100 will shift in position due to the pulling of the electrode wire 3 after the pulse generator 1 is implanted in the human body. This is beneficial to improving the stability of the stimulation signal transmission, thereby improving the reliability of the pulse generator 1.

[0131] Optionally, the top cover 300 is an injection-molded top cover, and the first mating part 310 is integrally formed with the top cover 300. Since the positioning part 120 is a metal structure, it can withstand greater assembly force and external force during use, and is not prone to deformation, wear or breakage, which is conducive to improving the stability and reliability of the positioning fit, thereby making the electrical connection between the electrode wire 3 and the first elastic element 12 stable for a long time.

[0132] Please see Figure 6This application embodiment also provides an extension wire 2, including a housing 400, a wire body 420, and a connector assembly 100 as provided in any of the above embodiments. The housing 400 is provided with a second mating part 410, the connector assembly 100 is disposed inside the housing 400, the positioning part 120 of the connector assembly 100 cooperates with the second mating part 410 to achieve positioning, and one end of the wire body 420 extends into the housing 400 and is electrically connected to the connector assembly 100.

[0133] The extension lead 2 can be used in conjunction with the pulse generator 1. The extension lead 2 can also be used in conjunction with other implantable electrical stimulation devices. The lead body 420 is electrically connected between the lead body 420 pulse generator 1 and the connector assembly 100 located inside the housing 400. The connector assembly 100 located inside the housing 400 is electrically connected to the electrode lead 3 to output stimulation signals to the target location in the brain, thereby achieving the purpose of treatment.

[0134] Due to human activity, the electrode wire 3 will be stretched to a certain extent. By setting a positioning part 120 on the connector assembly 100 and setting a second mating part 410 that cooperates with the positioning part 120 in the housing 400, the position of the connector assembly 100 in the housing 400 can be fixed. This reduces the possibility that the connector assembly 100 will shift in position under the pull of the electrode wire 3 after the extension wire 2 is implanted in the human body. This is beneficial to improving the stability of the stimulation signal transmission, thereby improving the reliability of the extension wire 2.

[0135] Optionally, the housing 400 is an injection-molded housing, and the second mating part 410 is integrally formed with the housing 400. Since the positioning part 120 is a metal structure, it can withstand greater assembly force and external force during use, and is not prone to deformation, wear or breakage, which is beneficial to improving the stability and reliability of the positioning fit, thereby ensuring long-term stable electrical connection between the electrode wire 3 and the first elastic element 12.

[0136] Please see Figure 1 and Figure 3 This application also provides an implantable electrical stimulation system, including a pulse generator 1 provided in any of the above embodiments, or an extension wire 2 provided in any of the above embodiments, or a pulse generator 1 and an extension wire 2 provided in any of the above embodiments.

[0137] Because the pulse generator 1 or the extension wire 2 is provided with a connector assembly 100 that can improve positioning accuracy and reliability of use, that is, the pulse generator 1 is provided with a first connector assembly 100a that can improve positioning accuracy and reliability of use, and the extension wire 2 is provided with a second connector assembly 100b that can improve positioning accuracy and reliability of use, it is beneficial to improve the reliability of use and electrical connection stability of the pulse generator 1 or the extension wire 2, and thus beneficial to improve the reliability of use and electrical connection stability of the implantable electrical stimulation system.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A connector assembly for an implantable electrical stimulation system, characterized in that, The connector assembly (100) includes: At least one first connector (10), the first connector (10) includes a first housing (11) and a first elastic member (12), the first housing (11) has a first cavity (101) inside, the first housing (11) has a first opening (102) at one end along its own axial direction (X) that communicates with the first cavity (101), the first opening (102) is configured to allow an external conductive member to extend into the first cavity (101), the first housing (11) includes a first sub-shell (111) and a second sub-shell (112) connected along the axial direction (X), the first sub-shell (111) is a metal structure; The first elastic member (12) is disposed in the first cavity (101) and abuts against the first sub-shell (111). The first elastic member (12) is configured to be electrically connected to the external conductive member. The second sub-shell (112) has a positioning part (120) on its periphery. The positioning part (120) is configured to achieve positioning cooperation with the external member.

2. The connector assembly according to claim 1, characterized in that, The other end of the first housing (11) along the axial direction (X) is a closed end face; or, the other end of the first housing (11) along the axial direction (X) is provided with a second opening (103) communicating with the first cavity (101), and the second opening (103) is configured to allow the external conductive member to extend out of the first cavity (101).

3. The connector assembly according to claim 1, characterized in that, The positioning part (120) includes a groove (1201) formed by the outer periphery of the second sub-shell (112) recessed inward along the radial (Y) direction of the first outer shell (11).

4. The connector assembly according to claim 1, characterized in that, The positioning part (120) includes a protrusion (1202) that protrudes outward from the outer periphery of the second sub-shell (112) along the radial (Y) direction of the first outer shell (11).

5. The connector assembly according to claim 3 or 4, characterized in that, Along the radial (Y) direction of the first outer shell (11), the radial (Y) height difference between the outer peripheral surface of the first sub-shell (111) and the positioning part (120) is H1, 0.05mm≤H1≤3mm; And / or, along the radial (Y) direction of the first outer shell (11), the radial (Y) height difference between the outer peripheral surface of the second sub-shell (112) and the positioning part (120) is H2, 0.05mm≤H2≤3mm.

6. The connector assembly according to claim 1, characterized in that, The outer peripheral surface of the first subshell (111) includes two opposing first planes (1111) and a first arc surface (1112) connecting the two first planes (1111). The first planes (1111) are parallel to the axial direction (X). And / or, the outer peripheral surface of the second subshell (112) includes two opposing second planes (1121) and a second arc surface (1122) connecting the two second planes (1121), the second planes (1121) being parallel to the axial direction (X); Along the radial (Y) direction of the first outer shell (11), the first plane (1111) protrudes from the second plane (1121) toward the side away from the first cavity (101).

7. The connector assembly according to claim 1, characterized in that, The positioning part (120) includes a through hole (1203) penetrating the second sub-shell (112).

8. A pulse generator, characterized in that, include: Housing (200); A top cover (300) is connected to the housing (200), and the top cover (300) is provided with a first mating part (310). The connector assembly (100) as described in any one of claims 1 to 7 is disposed within the top cover (300), and the positioning portion (120) of the connector assembly (100) engages with the first mating portion (310) to achieve positioning.

9. An extension wire, characterized in that, include: Cover (400), the cover (400) is provided with a second mating part (410); The connector assembly (100) as described in any one of claims 1 to 7, wherein the connector assembly (100) is disposed within the housing (400), and the positioning portion (120) of the connector assembly (100) engages with the second mating portion (410) to achieve positioning; A conductor body (420), one end of which extends into the housing (400) and is electrically connected to the connector assembly (100).

10. An implantable electrical stimulation system, characterized in that, Includes the pulse generator (1) of claim 8 and / or the extension wire (2) of claim 9.

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