Connector for an electro-stimulator and electro-stimulator

Abstract

The application discloses a connector of an electric stimulator and the electric stimulator, and the connector comprises a first section and a second section arranged axially, a stepped structure is formed between the first section and the second section, the thickness of the first section is greater than the thickness of the second section, a wire arranging groove suitable for wire embedding is formed on the first section, and a conductive pin extending along the thickness direction is arranged on the second section, the conductive pin is suitable for connecting a first chip located above the second section and a second chip located below the second section with the wire. The connector of the electric stimulator can be used for fixing the wire, the first chip and the second chip, the assembling process is simplified, and the stability of the electric stimulator is improved.

Description

Technical Field

[0001] This invention relates to the field of implantable medical device technology, and in particular to a connector and an electrical stimulator. Background Technology

[0002] Deep brain stimulation (DBS) can effectively treat movement disorders and can also be used to treat mental illnesses, such as Parkinson's disease, epilepsy, depression, and addictive disorders.

[0003] The electrodes of a deep brain stimulator (DBS) are an important component of the device. The electrodes are generally electrically connected to the implanted power supply unit via wires. However, for high-density DBS electrodes, the number of stimulation sites on the electrode stimulation end (electrode portion) is generally greater than the number of wires. How to achieve the connection between the wires and the electrode stimulation end is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a connector for an electrical stimulator, which can be used for a reliable connection between the wires and the electrode portion (electrical stimulator).

[0005] Another object of the present invention is to provide an electrical stimulator employing the above-described connector.

[0006] According to a first aspect of the present invention, a connector for an electrical stimulator includes: a first segment and a second segment arranged axially, a stepped structure formed between the first segment and the second segment, the thickness of the first segment being greater than the thickness of the second segment, a wire-guiding groove suitable for embedding a wire being provided on the first segment, and a conductive pin extending in the thickness direction being provided on the second segment, the conductive pin being suitable for connecting a first chip located above the second segment and a second chip located below the second segment to the wire.

[0007] The connector of the electrical stimulator according to an embodiment of the present invention, by providing a wire management groove, facilitates the support and fixation of the wires, thereby improving the long-term stability of the wires. Furthermore, the wires can be connected to the first chip and the second chip via the connector, which is convenient, simplifies the assembly process, and improves the operational stability of the electrical stimulator.

[0008] According to some embodiments of the present invention, the cable management groove extends to the second segment, and the width of the cable management groove adjacent to the conductive pin end is greater than the width of the other portions of the cable management groove.

[0009] According to some embodiments of the present invention, there are multiple conductive pins, and multiple through holes are provided on the second segment. The multiple conductive pins are separately arranged and inserted into the multiple through holes respectively.

[0010] According to some embodiments of the present invention, a guide pin positioning hole is formed at the end of the first segment away from the second segment.

[0011] According to some embodiments of the present invention, the number of the cable management slots and the number of the conductive pins are both five, and the five cable management slots and the five conductive pins are respectively adapted to cooperate with the five wires, which are respectively a clock lead, an interrupt lead, a data lead, a power lead and a ground lead.

[0012] According to some embodiments of the present invention, two or three cable management grooves are provided on the upper surface of the first segment, and the remaining cable management grooves are provided on the lower surface of the first segment.

[0013] An electrostimulator according to a second aspect of the present invention includes an implantable power supply unit and an electrode structure. The implantable power supply unit communicates with the electrode structure. The electrode structure includes a plurality of wires, a first chip, a second chip, a connector and an electrode portion according to the first aspect of the present invention. The implantable power supply unit is connected to the wires. The wires are connected to the first chip and the second chip through the connector. Both the first chip and the second chip are connected to the electrode portion.

[0014] According to some embodiments of the present invention, the electrode portion includes an electrode support post and a first sub-electrode and a second sub-electrode that are curled and attached to the electrode support post, wherein the first sub-electrode is connected to the first chip and the second sub-electrode is connected to the second chip.

[0015] According to some embodiments of the present invention, the communication protocol between the implanted power supply unit and the first chip and the second chip is I. 2 C. SMBus, RS232 or RS485.

[0016] According to some embodiments of the present invention, the electrical stimulator is a deep brain stimulator.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1This is a schematic diagram of the electrode structure according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of the electrode structure according to an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 A magnified view of region D, indicated by the center circle;

[0022] Figure 4 yes Figure 2 A magnified view of region E, indicated by the center circle;

[0023] Figure 5 yes Figure 2 A magnified view of region F, shown in the middle circle;

[0024] Figure 6 This is a schematic diagram of a connector according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a connector from another angle according to an embodiment of the present invention;

[0026] Figure 8 This is a top view of the electrode structure according to an embodiment of the present invention;

[0027] Figure 9 yes Figure 8 A schematic diagram of region G, shown in the middle circle;

[0028] Figure 10 This is a schematic diagram of an electrode structure from another angle according to an embodiment of the present invention;

[0029] Figure 11 yes Figure 10 A schematic diagram of region H, shown in the middle circle;

[0030] Figure 12 This is a flowchart of a communication method for an electrical stimulator according to an embodiment of the present invention;

[0031] Figure 13 This is a flowchart of the signal transmission method of the communication method of an electrical stimulator according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Electrode structure;

[0034] 200. Connector;

[0035] 201. First section; 2012. Guide pin positioning hole;

[0036] 202, Second section; 2021, Stepped structure; 2023, Through hole; 205, Guide pin;

[0037] 1a. Electrode section; 1. Electrode support column; 11. First sub-support section;

[0038] 12. Second sub-support section; 121. Positioning hole;

[0039] 13. Groove; 14. Limiting hole;

[0040] 21. First sub-electrode; 22. Second sub-electrode;

[0041] 23. Connecting cable; 24. Folded edge; 3. Glue injection part; 4. Sleeve; 5. Wire;

[0042] 6. First chip; 7. Second chip;

[0043] 81. Cable management channel; 82. Conductive pin. Detailed Implementation

[0044] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-11 A connector 200 for an electrical stimulator according to an embodiment of the first aspect of the present invention is described.

[0045] like Figure 5 , Figure 6 , Figure 7 and Figure 11 As shown, the connector 200 of the electrical stimulator according to a first aspect embodiment of the present invention includes an axial (e.g., Figure 2 The first segment 201 and the second segment 202 are set in the direction indicated by the middle arrow A.

[0046] Specifically, a stepped structure 2021 is formed between the first segment 201 and the second segment 202. The thickness of the first segment 201 is greater than the thickness of the second segment 202. The first segment 201 has a cable management groove 81 suitable for embedding the wire 5. The second segment 202 has a cable management groove along its thickness direction (e.g., ...). Figure 2 The conductive pin 82 extends in the direction indicated by the middle arrow C. The conductive pin 82 is adapted to connect the first chip 6 located above the second segment 202 and the second chip 7 located below the second segment 202 to the wire 5. The first chip 6 and the second chip 7 can be ASIC (Application-Specific Integrated Circuit) chips.

[0047] For example, in Figure 6 and Figure 7 In the example, both the upper and lower surfaces of the first segment 201 are formed with cable management grooves 81. The cable management grooves 81 are used to accommodate and fix the wires 5, which facilitates the connection between the wires 5 and the first chip 6 and the second chip 7, and the connection is stable. The first chip 6 and the second chip 7 can be electrically connected through conductive pins 82, so that the wires 5 can be electrically connected to the first chip 6 and the second chip 7 through the conductive pins 82.

[0048] The connector 200 of the electrical stimulator according to an embodiment of the present invention, by providing a cable management groove 81, facilitates the support and fixation of the wire 5, thereby improving the long-term stability of the wire 5. Furthermore, the wire 5 can be electrically connected to the first chip 6 and the second chip 7 via conductive pins 82, making connection convenient.

[0049] According to some embodiments of the present invention, with reference to Figures 6-9 The cable channel 81 extends onto the second segment 202, and the width of the end of the cable channel 81 adjacent to the conductive pin 82 is greater than the width of the other parts of the cable channel 81. Since the aforementioned end of the conductor 5 can be bent, the end of the aforementioned end of the conductor 5 can be located between the conductive pin 82 and the side wall of the cable channel 81, thereby the conductive pin 82 can limit the aforementioned end of the conductor 5, thereby improving the connection stability.

[0050] Optionally, combined Figure 2 , Figure 5 , Figure 6 and Figure 7 The conductive pins 82 are multiple, and the second segment 202 has multiple through holes 2023. The multiple conductive pins 82 are separately arranged and inserted into the multiple through holes 2023 respectively. In the description of this invention, "multiple" means two or more. For example, the through holes 2023 can penetrate the second segment 202 along the thickness direction and communicate with the cable management groove 81. This facilitates the installation and fixation of the conductive pins 82.

[0051] According to some embodiments of the present invention, with reference to Figure 6 , Figure 10 and Figure 11 A guide pin positioning hole 2012 is formed at the end of the first segment 201 that is away from the second segment 202. For example, in Figure 6 and Figure 11 In the example, the guide pin positioning hole 2012 extends along the central axis of the first segment 201. During the implantation procedure, the guide pin 205 can be inserted into the guide pin positioning hole 2012 from the end of the first segment 201 away from the second segment 202, thereby smoothly pushing the electrode structure 100 into the implantation position.

[0052] Optionally, there are five cable management slots 81 and five conductive pins 82. Each of the five cable management slots 81 and five conductive pins 82 is adapted to mate with five wires 5, which are respectively a clock lead, an interrupt lead, a data lead, a power lead, and a ground lead. This arrangement reduces the number of wires 5 used while meeting performance requirements, saving space and making the electrode structure 100 more compact.

[0053] Furthermore, two or three cable management grooves 81 are provided on the upper surface of the first segment 201, and the remaining cable management grooves 81 are provided on the lower surface of the first segment 201, but are not limited thereto. For example, in Figure 6 and Figure 7 In the example, two cable management grooves 81 are formed on the upper surface of the first segment 201, and the two cable management grooves 81 are along the width direction of the connector 200 (e.g., Figure 2 (As indicated by the middle arrow B) are spaced apart, three cable management grooves 81 are formed on the lower surface of the first segment 201. Thus, the multiple cable management grooves 81 on the connector 200 are rationally arranged, which facilitates the connection of the five wires 5 to the corresponding conductive pins 82.

[0054] An electrical stimulator (not shown) according to a second aspect embodiment of the present invention includes an implantable power supply unit (not shown) and an electrode structure 100, wherein the implantable power supply unit communicates with the electrode structure 100, such as... Figures 8-11 As shown, the electrode structure 100 includes a plurality of wires 5, a first chip 6, a second chip 7, a connector 200 of the electrostimulator according to the first aspect embodiment described above, and an electrode portion 1a.

[0055] The implantable power supply unit can be powered by an external power source or via wireless radio frequency, and can also be used as a main control device. Specifically, the implantable power supply unit connects to wire 5, which connects to a first chip 6 and a second chip 7 via connector 200. Both the first chip 6 and the second chip 7 are connected to electrode section 1a. For example, one end of wire 5 is connected to the second chip 7 of the first chip 6 via connector 200, and the other end of wire 5 can be connected to the implantable power supply unit. The first chip 6 and the second chip 7 are connected to electrode section 1a. Thus, multiple stimulation sites of electrode section 1a, after being converted by the first chip 6 and the second chip 7, can communicate with the implantable power supply unit through multiple wires 5. Furthermore, the multiple wires 5 connected to electrode section 1a via connector 200 enhance the stability of the wires 5 in use.

[0056] According to some embodiments of the present invention, with reference to Figure 2The electrode section 1a includes an electrode support post 1 and a first sub-electrode 21 and a second sub-electrode 22 curled and attached to the electrode support post 1. For example, the first sub-electrode 21 and the second sub-electrode 22 are high-density flexible electrodes, and their structures can be substantially the same. With this arrangement, the electrode support post 1 provides support for the first sub-electrode 21 and the second sub-electrode 22. Furthermore, the simple structure of the first sub-electrode 21 and the second sub-electrode 22 reduces manufacturing difficulty, facilitating their production and simplifying the assembly process. Preferably, dozens, hundreds, or even more stimulation sites are provided on the first sub-electrode 21 and the second sub-electrode 22, thereby enabling the formation of flexible electrodes with a higher density than existing technologies. The first sub-electrode 21 and the second sub-electrode 22 are preferably manufactured using MEMS processes to form a strip structure, ultimately achieving the desired electrode size (such as the standard DBS electrode size).

[0057] Combination Figure 2 The first sub-electrode 21 is connected to the first chip 6, and the second sub-electrode 22 is connected to the second chip 7. Both the first sub-electrode 21 and the second sub-electrode 22 have multiple stimulation sites. Therefore, the multiple stimulation sites on the first sub-electrode 21 and the second sub-electrode 22 can be connected to multiple wires 5 through the first chip 6 and the second chip 7, and the multiple stimulation sites can simultaneously communicate with the implanted power supply unit through a limited number of wires 5 (e.g., five wires 5). These stimulation sites can also be used as recording sites. Furthermore, additional recording sites can be provided on each sub-electrode; all of the above are covered within the technical solution of this invention.

[0058] Furthermore, compared to traditional electrode structures, flexible electrodes have more stimulation sites and smaller contact areas, making it less likely to stimulate unnecessary areas and thus reducing the side effects of using electrical stimulators. In addition, the use of flexible electrodes allows for targeted stimulation, zoned stimulation, and multi-target stimulation, significantly improving the stimulation precision of the electrical stimulator, reducing dependence on electrode implantation precision, and minimizing complications caused by electrical stimulation. This, in turn, ensures therapeutic efficacy and enables precision treatment. For example, when used in conjunction with recording electrodes, it can accurately collect brain nerve activity signals, providing clinicians with objective parameters and enabling personalized closed-loop control treatment.

[0059] According to some embodiments of the present invention, the communication protocol between the implanted power supply unit and the first chip 6 and the second chip 7 is I. 2 C, SMBus, RS232, or RS485, etc. Therefore, by adopting the above communication protocols, it is beneficial for smooth signal transmission between the implanted power supply unit and the first chip 6 and the second chip 7.

[0060] Alternatively, the electrical stimulator may be a deep brain stimulator (not shown), a spinal cord stimulator, or other possible electrical stimulators.

[0061] Reference Figure 2 Both the first sub-electrode 21 and the second sub-electrode 22 are provided with connecting cables 23 that connect to multiple stimulation sites. The connecting cables 23 are adapted to be electrically connected to the implantable power supply unit. Specifically, one end of the connecting cable 23 is electrically connected to multiple stimulation sites, and the other end of the connecting cable 23 is electrically connected to the implantable power supply unit.

[0062] According to some embodiments of the present invention, with reference to Figure 2 The electrode support column 1 includes a first sub-support section 11 and a second sub-support section 12 that are fixedly connected to each other. For example, the structures of the first sub-support section 11 and the second sub-support section 12 can be approximately the same. The first sub-electrode 21 is fixed on the first sub-support section 11, and the second sub-electrode 22 is fixed on the second sub-support section 12. This arrangement improves the stability of the first sub-electrode 21 and the second sub-support section 22 in use. In addition, the structures of the first sub-support section 11 and the second sub-support section 12 are simple, and manufacturing is relatively convenient.

[0063] Optionally, refer to Figures 2-4 At least one positioning hole 121 is formed on the first sub-support segment 11 and the second sub-support segment 12. The electrode structure 100 further includes at least one positioning element (e.g., a pin), which fits into the positioning hole 121 on the first sub-support segment 11 and the second sub-support segment 12, so that the first sub-support segment 11 and the second sub-support segment 12 are connected as a whole. Thus, the assembly operation between the first sub-support segment 11 and the second sub-support segment 12 is simple and the connection is firm.

[0064] Furthermore, combined Figures 2-4 Grooves 13 are formed on both the first sub-support segment 11 and the second sub-support segment 12, and on both sides of the long side of the first sub-electrode 21 and the second sub-electrode 22 (for example, Figure 2 (In the direction indicated by arrow B) are respectively provided flanges 24, which are fixed in the corresponding grooves 13. This arrangement facilitates the assembly of the first sub-electrode 21 and the first sub-support section 11, as well as the second sub-electrode 22 and the second sub-support section 12, and ensures reliable assembly, which is beneficial for the long-term stable use of the first sub-electrode 21 and the second sub-electrode 22. Moreover, the sidewall of the groove 13 has a limiting effect on the flanges 24, which further improves the connection stability of the first sub-electrode 21, the second sub-electrode 22 and the electrode support column 1.

[0065] According to some embodiments of the present invention, with reference to Figure 2 and Figure 3The electrode support post 1 has a limiting hole 14 at its end. The electrode structure 100 further includes a glue injection component 3. The end of the electrode support post 1 and the corresponding ends of the first sub-electrode 21 and the second sub-electrode 22 are fixedly connected by the glue injection component 3, and a portion of the glue injection component 3 fills the limiting hole 14. Thus, the glue injection component 3 can reliably fix the first sub-electrode 21 and the second sub-electrode 22 to the electrode support post 1.

[0066] Optionally, combined Figure 2 and Figure 3 Along the axial direction of the electrode support column 1 away from the injection part 3, the cross-sectional area of ​​the limiting hole 14 gradually increases. As a result, the portion of the injection part 3 filled in the limiting hole 14 is less likely to fall out of the limiting hole 14.

[0067] According to some embodiments of the present invention, the electrode portion 1a further includes a third sub-electrode (not shown) with a strip-like structure, wherein the first sub-electrode 21, the second sub-electrode 22, and the third sub-electrode are curled and attached to the outer periphery of the electrode support post 1. For example, the first sub-electrode 21, the second sub-electrode 22, and the third sub-electrode are arranged along the outer periphery of the electrode support post 1. It should be noted that the first sub-electrode 21 and the second sub-electrode 22 may be provided with multiple sub-electrodes according to usage requirements to better meet practical applications.

[0068] Furthermore, referring to Figure 2 The electrode structure 100 also includes a sleeve 4, which is fitted over the connecting cable 23, and multiple wires 5 are integrated inside the sleeve 4. This arrangement can improve the connection stability between the components.

[0069] The following describes a communication method for an electrical stimulator according to a third aspect embodiment of the present invention.

[0070] The communication method of the electrical stimulator according to an embodiment of the present invention, combined with Figure 12 The communication method includes the following steps:

[0071] The implanted power supply unit sends a command to the first chip 6 or the second chip 7, the command including an address identification code to identify the chip that responds to the command;

[0072] During the same period, only one of the first chip 6 and the second chip 7 responds to the command.

[0073] Therefore, the address identification code can distinguish between the first chip 6 and the second chip 7 that respond to commands, thus facilitating communication between the implantable power supply unit and the first sub-electrode 21 and the second sub-electrode 22. Furthermore, by enabling one of the first chip 6 or the second chip 7 to respond to commands, the commands from the implantable power supply unit can be accurately transmitted to the corresponding first sub-electrode 21 or second sub-electrode 22, improving the accuracy of signal transmission in the electrostimulator and consequently enhancing its stimulation precision.

[0074] According to some embodiments of the present invention, the communication between the implantable power supply unit and the first chip 6 and the second chip 7 is serial communication. This facilitates signal transmission between the implantable power supply unit and the first chip 6 and the second chip 7, and reduces the number of transmission lines, allowing for a smaller size of the electrostimulator, simpler assembly process, and lower cost.

[0075] According to some embodiments of the present invention, in combination Figure 13 The implanted power supply unit sends commands to the first chip 6 or the second chip 7 to form a downlink signal;

[0076] During the same period, only one of the first chip 6 and the second chip 7 responds to the command, forming an uplink signal;

[0077] Level converters are added to both the uplink and downlink paths of the signal.

[0078] When the electrical stimulator is implanted in human tissue, the first chip 6 or the second chip 7 receives a command from the implantable power supply unit and outputs a command to the first sub-electrode 21 or the second sub-electrode 22. This allows the implantable power supply unit to send targeted electrical stimulation to the corresponding functional areas, achieving precise treatment. Furthermore, level converters are added to both the uplink and downlink signal paths to achieve signal level conversion, facilitating system development. This allows for the treatment of movement disorders such as Parkinson's disease, dystonia, tremor, and frozen gait, and can also serve as an alternative treatment for drug addiction and depression.

[0079] Optionally, the conductor 5 includes at least four leads, including two power lines and two data lines. This configuration allows the data lines to be used for command signal transmission and the power lines for energy signal transmission, thus ensuring the normal operation of the conductor 5. Simultaneously, the reduced number of leads allows for a smaller conductor 5 size.

[0080] According to some embodiments of the present invention, the voltage on the data line is a symmetrical alternating current. This results in more stable signal transmission, which is beneficial for signal transmission on the data line, while also reducing the risk of DC leakage and improving safety.

[0081] According to an embodiment of the present invention, the electrostimulator executes the communication method of the electrostimulator according to the first aspect embodiment described above during operation. The electrostimulator according to the embodiment of the present invention, employing the above-described communication method, can quickly and accurately transmit commands from the implanted power supply unit, such as electrical stimulation, to the first electrode or the second electrode. It can also receive timely signal feedback from the first chip 6 or the second chip 7, thereby achieving effective connection between the electrode structure 100 and the implanted power supply unit. Furthermore, it can ensure stimulation waveform control for individual electrodes, thereby improving the precision control of the stimulation direction and achieving a superior stimulation effect.

[0082] Other configurations and operations of the electrical stimulator and electrode structure 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0083] In the description of this invention, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A connector for an electrical stimulator, characterized in that, include: The first and second segments are arranged axially, with a stepped structure between them. The thickness of the first segment is greater than that of the second segment. The first segment has a cable management groove suitable for embedding wires. The second segment has a conductive pin extending along the thickness direction. The conductive pin is suitable for connecting a first chip located above the second segment and a second chip located below the second segment to the wires.

2. The connector for the electrical stimulator according to claim 1, characterized in that, The cable management groove extends to the second section, and the width of the cable management groove at the end adjacent to the conductive pin is greater than the width of the other parts of the cable management groove.

3. The connector for the electrical stimulator according to claim 1, characterized in that, The number of conductive pins is multiple, and the second section is provided with multiple through holes. The multiple conductive pins are separately arranged and inserted into the multiple through holes respectively.

4. The connector for the electrical stimulator according to claim 1, characterized in that, A guide pin positioning hole is formed at the end of the first segment away from the second segment.

5. The connector for the electrical stimulator according to any one of claims 1-4, characterized in that, The number of cable management slots and conductive pins are both five. The five cable management slots and five conductive pins are respectively adapted to cooperate with five wires. The five wires are clock leads, interrupt leads, data leads, power leads and ground leads.

6. The connector for the electrical stimulator according to claim 5, characterized in that, Two or three cable management grooves are provided on the upper surface of the first segment, and the remaining cable management grooves are provided on the lower surface of the first segment.

7. An electrical stimulator, characterized in that, The device includes an implantable power supply unit and an electrode structure. The implantable power supply unit communicates with the electrode structure. The electrode structure includes multiple wires, a first chip, a second chip, a connector for an electrostimulator according to any one of claims 1-6, and an electrode portion. The implantable power supply unit is connected to the wires. The wires are connected to the first chip and the second chip through the connector. Both the first chip and the second chip are connected to the electrode portion.

8. The electrical stimulator according to claim 7, characterized in that, The electrode portion includes an electrode support post and a first sub-electrode and a second sub-electrode that are curled and attached to the electrode support post. The first sub-electrode is connected to the first chip, and the second sub-electrode is connected to the second chip.

9. The electrical stimulator according to claim 7, characterized in that, The communication protocol between the implanted power supply unit and the first chip and the second chip is I. 2 C. SMBus, RS232 or RS485.

10. The electrical stimulator according to claim 7, characterized in that, The electrical stimulator is a deep brain stimulator.

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