Connector, implantable electrode piece using connector, electrode assembly and implantation device

Abstract

The utility model provides a connector, an implantable electrode piece using the connector, an electrode assembly and an implantation device, the connector is used for being connected with the implantable electrode piece and comprises an insulation main body and a conductive terminal connected with the insulation main body; the conductive terminals extend along a first direction and are connected with the insulating main body, so that the electrode piece can be vertically connected with the conductive terminals along a second direction, and the first direction is different from the second direction. According to the connector, the implantable electrode piece using the connector, the electrode assembly and the implantation device, the circuit stability can be effectively improved, and the service life of the electrode is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a connector, an implantable electrode piece using the connector, an electrode assembly and an implantation device. BACKGROUND

[0002] At present, many micro electrodes for implanting into human body in medical devices need to be bent by a certain angle before being implanted into human body subcutaneously, for example Figure 1 The existing three-channel electrode shown in the figure includes an electrode area 10, a bending area 11 and a sensing area 12 connected in sequence. The electrode area 10 is used to be connected with a circuit board; the sensing area 12 is used to monitor physiological parameters in the body after being implanted into the body, and sends the information of the physiological parameters in the body to the circuit board after passing through the bending area 11 to the electrode area 10. The information of the physiological parameters is processed by the electronic circuit on the circuit board and then sent to other devices outside, such as medical monitoring instruments. In the implantation process, the bending area 11 of the electrode is prone to breakage because it is in a flat lying state, which causes damage to the circuit connected with the whole electrode, greatly affecting the reliability, especially the significant shortening of the long-term wearing life.

[0003] In view of the above problems, the current research focuses on how to solve the problem of electrode bending damage, for example, by continuously improving the material performance and changing the shape of the electrode to improve the bending damage resistance of the circuit. However, in actual application, the effect is not ideal, for example, it will cause inconvenience in implantation and poor firmness. Therefore, it is necessary to provide an improved implantable electrode.

[0004] It should be noted that the information disclosed in the background technology part of the utility model is only intended to deepen the understanding of the general background technology of the present application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a connector, an implantable electrode piece using the connector, an electrode assembly, an implantation device and a preparation method thereof, which can improve the stability of the circuit and prolong the service life of the electrode.

[0006] In order to achieve the above purpose, the present application provides a connector, which is used for connecting with an implantable electrode piece and includes an insulating main body and a conductive terminal connected with the insulating main body; the conductive terminal extends along a first direction and is connected with the insulating main body, so that the electrode piece can be connected with the conductive terminal along a second direction in a vertical manner, and the first direction is different from the second direction.

[0007] In some embodiments, the number of the conductive terminals is N, the electrode member is an N-channel electrode member and is capable of extending along the second direction to sequentially connect with the N conductive terminals, thereby establishing an N-channel electrode.

[0008] In some embodiments, the insulating body comprises a body portion and one or more limiting portions, the body portion defines a space for the conductive terminals to contact the electrode member, the limiting portions extend into the space from the body portion and are located at opposite sides of the conductive terminals, so that the limiting portions can establish a pre-tightening force with the electrode member.

[0009] In some embodiments, the limiting portions are detachably connected with the body portion, so that the limiting portions can be interchanged with the required conductive terminals.

[0010] In some embodiments, the conductive terminal comprises a flexible arm, a connecting arm and a tail portion connected in sequence; the flexible arm has a spherical contact portion at the front end, which is opposite to the limiting portion, so as to clamp part of the electrode member between the spherical contact portion and the limiting portion.

[0011] In some embodiments, the connecting arm is at least partially fixed in the insulating body, the tail portion extends out of the insulating body from the connecting arm and is used to connect with the circuit board; the tail portion has a width w extending along the second direction and a height h extending along a third direction, wherein w is greater than h, so that the tail portion has a bottom surface with a larger area than other side surfaces for connecting with the circuit board.

[0012] In some embodiments, the side of the insulating body forms at least one channel for the electrode member to extend into, one side of the channel is open.

[0013] In some embodiments, the conductive terminal comprises a first conductive terminal and a second conductive terminal, the first conductive terminal and the second conductive terminal are oppositely arranged on the insulating body, thereby used to at least partially clamp the electrode member between the first conductive terminal and the second conductive terminal; the number of the first conductive terminal is N, the number of the second conductive terminal is M, so as to establish an N+M-channel electrode with the electrode member.

[0014] In some embodiments, the conductive terminal is integrally formed with the insulating body, or the conductive terminal is fixed with the insulating body by insertion.

[0015] The application also provides an implantable electrode member for connecting with the connector described above, the implantable electrode member comprises a head portion, an electrode portion, a transition portion, a reinforcing portion and a sensing portion connected in sequence.

[0016] The head section and the transition section are positioned with the insulating body, the electrode section is provided with circuit contacts for connecting with the conductive terminals and located on the side of the electrode piece opposite to the side with larger area than other side in the direction of the first direction, and the reinforcing section changes the extending direction of the electrode section and extends to the sensing section.

[0017] In some embodiments, the electrode section has a height extending along a third direction and a thickness extending along the first direction, and the circuit contacts are located on at least one side of the electrode piece in the first direction, wherein the height dimension is greater than the thickness dimension.

[0018] In some embodiments, the conductive terminals and the highest point of the electrode section are lower than the highest point of the insulating body

[0019] The application further provides an implantable electrode assembly comprising the connector as described above and the electrode piece as described above.

[0020] The application further provides an implantable device comprising the connector as described above, the electrode piece as described above, a circuit board and a base, the connector is connected with the circuit board, one end of the electrode piece is positioned on one side of the base and connected with the conductive terminals of the connector, and the other end passes through the base and is at least partially exposed on the other side of the base.

[0021] Compared with the prior art, the connector, the implantable electrode piece using the connector, the electrode assembly and the implantable device provided by the application can improve the circuit stability and prolong the service life of the electrode, and specific details will be further described below. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A schematic diagram of a prior art implantable three-channel electrode;

[0023] Figure 2 A top view schematic diagram of the connector provided by an embodiment of the application connected with a three-channel electrode piece;

[0024] Figure 3 A partial side view schematic diagram of the connector provided by an embodiment of the application connected with a three-channel electrode piece;

[0025] Figure 4 A perspective view schematic diagram of the connector provided by an embodiment of the application connected with a three-channel electrode piece;

[0026] Figure 5 A cross-sectional view schematic diagram of the connector provided by an embodiment of the application connected with a three-channel electrode piece;

[0027] Figure 6Fig. 1 is a top view of a connector according to an embodiment of the present application;

[0028] Figure 7 Fig. 2 is a cross-sectional view of a connector according to an embodiment of the present application;

[0029] Figure 8 Fig. 3 is a perspective view of a connector according to an embodiment of the present application;

[0030] Figure 9 Fig. 4 is a perspective view of an electrode assembly according to an embodiment of the present application;

[0031] Figure 10 Fig. 5 is a perspective view of an electrode assembly according to an embodiment of the present application;

[0032] Figure 11 Fig. 6 is a flow chart of a process of connecting a connector to a circuit board according to an embodiment of the present application;

[0033] Figure 12 Fig. 7 is a flow chart of a process of connecting a connector to a circuit board according to another embodiment of the present application. DETAILED DESCRIPTION

[0034] The connector, implantable electrode assembly, electrode assembly and implantation device according to the present application will be further described below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present application will be more apparent from the following description. It should be noted that the accompanying drawings are simplified and use non-precise proportions, and are only used to facilitate, clarify and assist in the description of the embodiments provided by the present application. Before the present application is disclosed and described, it is to be understood that this application is not limited to particular methods, specific components, or specific implementations. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. For purposes of summarizing the application, certain aspects, advantages and features of the application have been described herein. It is to be understood that not all aspects necessarily have all advantages or features and embodiments can exhibit one or more of the advantages and features from time to time. Accordingly, not all aspects with the scope of the application are necessarily limited to the specific embodiments disclosed herein. It is therefore evident that the application can be carried out in a variety of ways, and that the Docket No. 1001.00WO1 scope of the application encompasses all technical equivalents and / or similar technology that have essentially the same functions.

[0035] It is to be noted that the relative terms such as first and second etc. are used herein merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0036] In addition, in the description of the specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative expressions in the specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

[0037] The present application provides a connector, an implantable electrode piece using the connector, an electrode assembly, an implantable device and a preparation method thereof, which can improve circuit stability and prolong the service life of the electrode.

[0038] To achieve the above-mentioned purpose, as Figure 1 A schematic diagram of an existing implantable three-channel electrode; Figure 2 A top view schematic diagram of the connector provided by an embodiment of the present application and the three-channel electrode piece; as Figure 3 A partial side view schematic diagram of the connector provided by an embodiment of the present application and the three-channel electrode piece; as Figure 4 A three-dimensional schematic diagram of the connector provided by an embodiment of the present application and the three-channel electrode piece; as Figure 5 A cross-sectional view schematic diagram of the connector provided by an embodiment of the present application and the three-channel electrode piece; as Figure 6 A top view schematic diagram of the connector provided by an embodiment of the present application and the five-channel electrode piece; as Figure 7 A cross-sectional view schematic diagram of the connector provided by an embodiment of the present application and the five-channel electrode piece; as Figure 8This is a perspective view of the connection between the connector and the five-channel electrode provided in one embodiment of this application; as shown. Figure 9 This is a three-dimensional schematic diagram of an electrode provided according to an embodiment of this application; as shown. Figure 10 This is a schematic diagram of an electrode assembly provided in one embodiment of this application; as shown. Figure 11 This is a schematic diagram of the connector and circuit board connection process provided in one embodiment of this application; as shown. Figure 12 This is a schematic diagram of the connector and circuit board connection process provided in another embodiment of this application.

[0039] like Figure 2-4 As shown, in this embodiment, a connector 2 is provided for connection to an implantable electrode 3, and includes an insulating body 20 and conductive terminals 21 connected to the insulating body 20. The conductive terminals 21 extend along a first direction FB (also known as the front-to-back direction) and are fixedly connected to the insulating body, so that the electrode 3 can be connected to the conductive terminals 21 along a second direction LR (also known as the left-to-right direction). In this embodiment, the number of conductive terminals 21 is three, and correspondingly, the electrode 3 is a three-channel electrode with three circuit contacts 35, and each conductive terminal 21 is connected to each circuit contact 35 on the electrode 3. Of course, in other embodiments, the number of conductive terminals 21 can be other than three, and this application does not limit this.

[0040] like Figure 2 As shown, the conductive terminal 21 includes a plurality of conductive terminals, which are arranged at equal or unequal intervals along the second direction LR, for example, at equal intervals e, so that the electrode 3 can extend along the second direction LR and connect sequentially to each conductive terminal 21, thereby establishing a corresponding electrical connection channel. For example, if the number of conductive terminals 21 is N, then the electrode 3 is an N-channel electrode and can extend along the second direction LR and connect sequentially to N conductive terminals 21, thereby establishing an N-channel electrode.

[0041] The insulating body 20 includes a body portion 201 and one or more limiting portions 202. The body portion 201 defines a space (not marked) for the conductive terminal 21 to contact the electrode 3. The limiting portions 202 extend from the body portion 201 into the space and are located on the opposite side of the conductive terminal 21, so that a pre-tightening force can be established between the limiting portions 202 and the electrode, that is, the electrode 3 can be pressed against the conductive terminal 21 to ensure a reliable connection between the electrode 3 and the conductive terminal 21. The distance between the multiple limiting portions 202 can be equal to the distance between the multiple conductive terminals 21, for example, all of them are e. Of course, they can also be set with unequal distances, which is not limited in this application.

[0042] As Figure 5 shown, the conductive terminal 21 includes an elastic arm 210, a connecting arm 211 and a tail 212 connected in sequence; the elastic arm 210 has a contact portion 2100 formed at the front end, for example, a spherical contact portion, used to be opposite to the limiting portion 202 of the insulating body 20 to clamp part of the electrode piece 3 therebetween, wherein the spherical contact portion 2100 faces the micro electrode piece 3 to generate small friction force, and effectively protects the electrode piece; the elastic arm 210 structure of the conductive terminal 21 is tensioned to clamp the circuit contact 35 on the electrode 3 and the conductive terminal 21, and the limiting portion 202 is used to ensure the pre-tightening force F; under the action of the pre-tightening force F, the spherical contact portion 2100 is stressed to make the elastic arm 210 elastically deform, and the restoring force of the deformation further acts on the electrode piece 3, thereby forming a firm and reliable connection. To prevent the conductive terminal 21 from being plastically deformed and losing function, a gap 213 is arranged in the elastic deformation area of the conductive terminal, and the width of the gap is a; within the gap width a, the terminal 1100 always elastically deforms without being damaged.

[0043] Further, the connecting arm 211 is at least partially fixed in the insulating body 20, and the tail 212 extends out of the insulating body 20 from the connecting arm 211 and is used to be connected with the circuit board; the tail 212 has a width w extending along the second direction LR (as Figure 2 shown), and a height h extending along the third direction AB (as Figure 5 shown, also called the up-down direction); wherein w is greater than h, that is, the tail 212 is flat, so that the tail 212 has a bottom surface 2120 with a larger area than other side surfaces to be connected with the circuit board, ensuring the stability of the circuit connection, and the height h can be as small as 0.10 mm, while as far as possible to ensure the small size of the conductive terminal, and when the micro electrode piece is assembled and connected, it will not exert excessive force on the electrode piece to damage the electrode piece, effectively improving the assembly success probability.

[0044] Return Figure 4As shown, at least one channel 203 is formed on the side of the insulating body 20 for the electrode 3 to extend into, and one side of the channel 203 is open. In this embodiment, the lower side of the channel 203 is open, that is, the opening faces downward, so that the insulating body 20 can be pressed onto the positioned electrode 3 from top to bottom. As those skilled in the art will understand, in some other embodiments, the opening direction of the channel 203 can be adjusted according to the docking direction with the electrode. Since the electrode 3 is an elongated body that is longer in the left-right direction, if the insulating body 20 is inserted into the electrode 3 in the left-right direction, the electrode 3 will be easily damaged and docking will not be possible. Therefore, the channel 203 can effectively prevent damage to the electrode 3 and ensure stable contact. In some embodiments, the bottom of the insulating body 2 is provided with positioning posts 204 and 205 to facilitate the positioning of the insulating body 2 and the circuit board.

[0045] like Figure 6-8 As shown, another embodiment of the connector provided in this application is illustrated. In this embodiment, the connector 2' includes an insulating body 20' and a plurality of conductive terminals, the conductive terminals including a first conductive terminal 21' and a second conductive terminal 22'. The difference between this connector 2' and the connector 2 in the aforementioned embodiment is that the limiting portion 202 in this connector 2' is replaced by the second conductive terminal 22'. The first conductive terminal 21' and the second conductive terminal 22' are disposed opposite to each other on the insulating body, thereby clamping the electrode 3' between them to establish a circuit channel. In this embodiment, taking the connector 2' for connection with the five-channel electrode 3' as an example, the number of the first conductive terminals 21' is 3, and the number of the second conductive terminals 22' is 2, which are respectively connected to the five circuit contacts 35' on both sides of the electrode 3'. Of course, in other embodiments, as those skilled in the art will understand, the number of conductive terminals and their arrangement can be adjusted according to the actual application scenario. For example, the first conductive terminals 21' and the second conductive terminals 22' can be arranged at equal or unequal intervals on the same or different sides of the insulating body. This application does not limit this. Furthermore, if N conductive terminals are arranged on one side of the insulating body and M conductive terminals are arranged on the opposite side of the insulating body, the conductive terminals on both sides can clamp the electrode between them to establish an N+M channel electrode with the electrode.

[0046] In some embodiments, the limiting part 202 is detachably connected to the body part 201, allowing the limiting part to be interchanged with the required conductive terminals. This enables a single insulating body 20 to be connected to different numbers of conductive terminals, and thus to be connected to corresponding channel electrode components, flexibly forming a corresponding number of electrode channels. For example, if connection to a three-channel electrode component is required, the limiting part 202 (as described above) can be used.Figure 4 As shown, if connected with a five-channel electrode piece, the limiting part 202 is removed and replaced with the required number of conductive terminals 22' (as shown). Figure 8

[0047] As shown, the implantable electrode piece 3 provided by the embodiments of the present application includes a head segment 30, an electrode segment 31, a transition segment 32, a reinforcing segment 33 and a sensing segment 34 connected in sequence. As shown, at least one of the head segment 30 and the transition segment 32 is positioned with the insulating body 20 through the channel 203 defined by the insulating body 20, the electrode segment 31 is provided with a circuit contact 35 for connection with the conductive terminal 21, the electrode segment 31 is provided with a circuit contact 35 for connection with the conductive terminal 21, the highest point of the conductive terminal 21 and the electrode segment 32 is lower than the highest point of the insulating body 20 (as shown), so as to protect the conductive terminal 21 and the electrode segment 32 from external influences by using the space surrounded by the insulating body 20; the reinforcing segment 33 changes the extension direction of the electrode segment 32 and extends to the sensing segment, the reinforcing segment 33 can serve as a reinforcing part of the turning area of the entire electrode piece 3, enhances the bending resistance of the electrode piece and prolongs its service life. Figure 9 Figure 4 Figure 5

[0048] Further, the electrode segment 31 has a height extending along a third direction AB and a thickness extending along a first direction FB, wherein the height dimension is greater than the thickness dimension, the circuit contact 35 is located on at least one side of the electrode piece 3 in the first direction FB, so that the electrode piece 3 is connected with the connector in a vertical manner, i.e. the circuit contact 35 is located on the side 310 of the electrode piece 3 facing the conductive terminal 21, which is larger than the other side, so as to facilitate stable contact between the electrode piece 3 and the connector 2, effectively reduce the breakage rate of the electrode piece 3, improve its service life, and facilitate the installation and positioning of the connector 2 with the electrode piece 3 in an up-down manner, greatly avoiding damage to the electrode piece 3.

[0049] In some embodiments, the present application also relates to an implantable electrode assembly, which includes the connector and the electrode piece.

[0050] In some embodiments, as shown, Figure 10 ​​​​As shown, the application also improves an implantable device, which comprises the connector 2, the electrode member 3, the circuit board 4 and the base 5, the connector 2 is connected with the circuit board 4, one end of the electrode member 3 is positioned at one side of the base 5 and is connected with the conductive terminal of the connector 2, the other end passes through the base 5 and exposes the sensing section 34 at the other side of the base 5, so as to implant the sensing section 34 in the body and monitor the parameters in the body, such as blood glucose parameters.

[0051] In still some embodiments, the application also relates to a manufacturing method of an implantable electrode, the method comprising:

[0052] Positioning the electrode member 3 on the base 5, so that one end of the electrode member 3 is positioned at one side of the base 5 and the other end passes through the base 5 and exposes the sensing section 34 at the other side of the base 5;

[0053] Fixing the conductive terminal 21 with the insulating body 20 to form the connector 2 for the implantable electrode;

[0054] Fixing the connector 2 with the circuit board 4;

[0055] Pressing the circuit board 4 towards the base 5, so that the conductive terminal in the connector 2 is in corresponding contact with the circuit contact 35 of the electrode member 3 on the base 5; in this embodiment, as shown by the arrow direction in Figure 10 , the circuit board 4 is pressed onto the base 5, as can be understood by those skilled in the art, the direction can be changed in specific implementation, depending on the position of the electrode member 3, the application does not make special limitation, as long as it is within the scope of the principles disclosed in the application, it belongs to the technical solutions to be protected by the application.

[0056] Further, the conductive terminal 21 and the insulating body 20 are integrally formed, that is, after the conductive terminal 21 is punched, the insulating body is formed on the conductive terminal by integral injection molding, so that the two are integrally formed into the connector 2; by using the integrally formed connector 2, the connector can be directly connected with the circuit board by SMT (Surface Mounted Technology) process, especially as described above, the tail portion 212 of the conductive terminal 21 has a bottom surface 2120 (as shown in Figure 5 ) with larger area than other side surfaces, which is connected with the circuit board, which is more conducive to the positioning of the connector 2, especially for the design of the miniature implantable electrode, such design ensures small size while establishing stable connection, which can significantly improve the performance of the product.

[0057] In order to further illustrate the advantages of the application, please refer to Figure 11As shown, the conductive terminal 21 is integrally formed with the insulating body 20, and the tail 212 of the conductive terminal 21 has a bottom surface 2120 with a larger area than other side surfaces, which is connected to the circuit board 4. In particular, the tail 212 of the terminal 21 can be quickly and firmly welded on the circuit board by using the SMT process, which can effectively extend the service life of the circuit. In addition, during the process of integrally forming the conductive terminal 21 with the insulating body 20, due to the innovative design of the conductive terminal 21 and the insulating body 20 as described above, a plurality of conductive terminal metal sheets are stamped and formed, and then a plurality of insulating body pieces are simultaneously injection molded thereon at one time, and then the connector 20 of the present application is obtained after cutting, which effectively improves the production efficiency of the connector suitable for microelectrodes.

[0058] As can be understood by those skilled in the art, the design idea of the connector 2' and the electrode piece 3' is closely related or consistent with the design idea of the connector 2 and the electrode piece 3 as described above, and therefore the design principle and assembly method are not described in detail here.

[0059] In addition, the present application also provides a connector, as shown in Figure 12 is a plug-in connector 50, which includes an insulating body 51 and a conductive terminal 52 fixed in the insulating body 51, the conductive terminal 52 includes a head end 520, a connecting end 521 and a tail end 522, and the height of the conductive terminal 52 is greater than the width. During assembly, as shown by the arrow in Figure 12 , the conductive terminal 52 is inserted into the insulating body 51, so that the tail end 522 is exposed, and then the connector is positioned on the circuit board 4, and the tail end 522 with a narrower bottom surface is fixed on the circuit board 4. As described above, the electrode piece 3 can still be inserted into the connector 50 in a vertical manner along the second direction LR and contact the head end 520 of the conductive terminal 52 to form an electrode corresponding to the channel.

[0060] The above description is only a description of the preferred embodiments of the present application, and does not limit the scope of the present application. Any modification or modification of the above disclosure made by those skilled in the art is within the scope of the present application. Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations are within the scope of the present application and its equivalents, the present application also intends to include these modifications and variations.

Claims

1. A connector characterized by: The connector is used for connecting with an implantable electrode piece and comprises an insulating body and a conductive terminal connected with the insulating body; the conductive terminal extends along a first direction and is connected with the insulating body so that the electrode piece can be connected with the conductive terminal in a vertical manner along a second direction, the first direction being different from the second direction.

2. The connector of claim 1, wherein The number of the conductive terminals is N, the electrode piece is an N-channel electrode piece and can be connected with the N conductive terminals in sequence along the second direction to establish an N-channel electrode.

3. The connector of claim 1, wherein The insulating body comprises a body part and one or more limiting parts; the body part defines a space for the conductive terminal to contact the electrode piece; the limiting part extends into the space from the body part and is located at the opposite side of the conductive terminal so that a pre-tightening force can be established between the limiting part and the electrode piece.

4. The connector of claim 3, wherein The limiting part is detachably connected with the body part so that the limiting part can be interchanged with the required conductive terminal.

5. The connector of claim 3, wherein The conductive terminal comprises an elastic arm, a connecting arm and a tail part connected in sequence; the elastic arm has a spherical contact part at the front end thereof, which is opposite to the limiting part so as to clamp a part of the electrode piece between the spherical contact part and the limiting part.

6. The connector of claim 5, wherein, The connecting arm is at least partially fixed in the insulating body, and the tail part extends out of the insulating body from the connecting arm and is used for connecting with a circuit board; the tail part has a width w extending along the second direction and a height h extending along a third direction, wherein w is greater than h, so that the tail part has a bottom surface with a larger area than other side surfaces for connecting with the circuit board.

7. The connector of claim 1, wherein The side of the insulating body forms at least one channel for the electrode piece to extend into, and one side of the channel is open.

8. The connector of claim 1, wherein, The conductive terminal comprises a first conductive terminal and a second conductive terminal, the first conductive terminal and the second conductive terminal are oppositely arranged on the insulating body so as to at least partially clamp the electrode piece between the first conductive terminal and the second conductive terminal; the number of the first conductive terminal is N, and the number of the second conductive terminal is M, so as to establish an N+M-channel electrode with the electrode piece.

9. The connector of claim 1, wherein, The conductive terminal is integrally formed with the insulating body, or the conductive terminal is fixed with the insulating body by insertion.

10. An implantable electrode member characterized by: The implantable electrode piece is used for connecting with the connector as claimed in any one of claims 1-9, and the implantable electrode piece comprises a head section, an electrode section, a transition section, a reinforcing section and a sensing section connected in sequence. The head section and the transition section are respectively positioned with the insulating body, the electrode section is provided with a circuit contact point, the circuit contact point is used for connecting with the conductive terminal and is located on the side of the electrode piece opposite to the side with a larger area, and the reinforcing section changes the extension direction of the electrode section and extends to the sensing section.

11. The implantable electrode member of claim 10, wherein, The electrode section has a height extending along a third direction and a thickness extending along the first direction, and the circuit contact point is located on at least one side of the electrode section in the first direction, wherein the height dimension is greater than the thickness dimension.

12. The implantable electrode member of claim 10, wherein, The highest point of the electrically conductive terminal and the electrode segment is lower than the highest point of the insulating body.

13. An implantable electrode assembly, comprising: The connector according to any one of claims 1 to 9, and the electrode member according to any one of claims 10 to 12.

14. An implant device, characterized by The connector according to any one of claims 1 to 9, the electrode member according to any one of claims 10 to 12, a circuit board, and a base, the connector being connected to the circuit board, one end of the electrode member being positioned on one side of the base and connected to the electrically conductive terminal of the connector, the other end passing through the base and being at least partially exposed on the other side of the base.

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