Electrode implantation assembly and electrode implantation system

Abstract

The invention discloses an electrode implantation assembly and an electrode implantation system. The electrode assembly comprises a microtube, two ends of the microtube are open, and the microtube is provided with a tube cavity; the microneedle is movably arranged in the tube cavity in a penetrating manner; one end of the electrode is detachably connected with one end of the microneedle; the driving mechanism is respectively connected with the microtube and the microneedle, when the driving mechanism drives the microneedle to move towards a first direction, the microneedle is connected with the electrode, the microneedle drives the electrode to move, when the driving mechanism drives the microneedle to move towards a second direction, the microneedle is separated from the electrode, and the first direction is opposite to the second direction. According to the invention, the technical problem that the auxiliary microneedle and the microtube cannot be removed after the electrode is implanted in the existing flexible implantation technology based on catheter guidance is solved.

Description

Technical Field

[0001] The present invention relates to the field of electrode technology, and in particular to an electrode implantation assembly and an electrode implantation system. Background Art

[0002] Flexible electrode implantation technology plays a crucial role in neuroscience research and clinical applications, showing great potential in long-term monitoring of brain activity and treating neurological diseases. In recent years, catheter-guided implantation has garnered widespread attention. This technique allows electrodes to be precisely delivered to the target location via a catheter without completely exposing brain tissue, thus avoiding dura mater resection and significantly reducing surgical risks.

[0003] However, current catheter-guided flexible implantation technology still faces several key challenges: after electrode implantation, the microneedles and microtubes used to assist in implantation often cannot be removed from the body. If these microneedles and microtubes remain in the body, they can not only trigger additional tissue reactions but also interfere with the acquisition of electrode signals and even affect the physiological environment of the implanted area, hindering long-term, stable data recording. Therefore, how to safely remove microneedles and microtubes while ensuring accurate electrode implantation remains a key technical issue in this field.

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0005] The embodiments of the present invention provide an electrode implantation assembly and an electrode implantation system to at least solve the technical problem that in the existing catheter-guided flexible implantation technology, the auxiliary microneedles and microtubes cannot be removed after the electrodes are implanted.

[0006] According to one aspect of an embodiment of the present invention, an electrode implant assembly is provided, comprising: a microtube, wherein both ends of the microtube are open and have a lumen; a microneedle, wherein the microneedle is movably arranged in the lumen; an electrode, wherein one end of the electrode is detachably connected to one end of the microneedle; and a driving mechanism, wherein the driving mechanism is respectively connected to the microtube and the microneedle, and when the driving mechanism drives the microneedle to move in a first direction, the microneedle is connected to the electrode, and the microneedle drives the electrode to move; and when the driving mechanism drives the microneedle to move in a second direction, the microneedle is separated from the electrode, wherein the first direction is opposite to the second direction.

[0007] Optionally, the microtube has a pointed portion at one end.

[0008] Optionally, a groove is formed at one end of the microtube, the width of the groove is greater than the width of the electrode, and the electrode is detachably connected to one end of the microneedle through the groove.

[0009] Optionally, the microtube wall has an opening, the diameter of the opening is larger than the width of the electrode, and the electrode is detachably connected to one end of the microneedle through the opening.

[0010] Optionally, the microneedle includes a needle head and a needle body, the radius of the needle head is smaller than the radius of the needle body, and the electrode is detachably connected to the needle head.

[0011] Optionally, one end of the electrode has an opening, and the needle passes through the opening and is detachably connected to the electrode.

[0012] Optionally, the portion of the electrode connected to the microneedle is located inside the lumen, and the rest of the microneedle is located outside the lumen.

[0013] Optionally, the electrode is located within the lumen.

[0014] Optionally, the driving mechanism includes a first driving part and a second driving part arranged on the base, the first driving part is connected to the microtube and is used to drive the microtube to move, and the second driving part is connected to the microneedle and is used to drive the microneedle to move, and the microtube and the microneedle move concentrically.

[0015] Optionally, the first driving part includes a first displacement platform, a first clamping part and an extension arm. The first clamping part is movably connected to the base. The first displacement platform is connected to the first clamping part to drive the first clamping part to move. One end of the extension arm is connected to the first clamping part, and the other end of the extension arm is connected to the microtube.

[0016] Optionally, the second driving portion includes a second translation platform and a second clamping portion, the second clamping portion is movably connected to the base, and the second translation platform is connected to the second clamping portion to drive the second clamping portion to move.

[0017] Optionally, the driving mechanism further includes an electrode clamping portion, which is used to fix the microneedle and the electrode.

[0018] According to another aspect of an embodiment of the present invention, an electrode implantation system is provided, comprising: a controller and the electrode implantation assembly described in any one of the above embodiments, wherein the controller is configured to control a driving mechanism to control the movement of the electrode.

[0019] In an embodiment of the present invention, an electrode implant assembly is provided, comprising: a microtube, wherein both ends of the microtube are open and have a lumen; a microneedle, wherein the microneedle is movably arranged in the lumen; an electrode, wherein one end of the electrode is detachably connected to one end of the microneedle; and a driving mechanism, wherein the driving mechanism is connected to the microtube and the microneedle respectively, and when the driving mechanism drives the microneedle to move in a first direction, the microneedle is connected to the electrode, and the microneedle drives the electrode to move; and when the driving mechanism drives the microneedle to move in a second direction, the microneedle is separated from the electrode, wherein the first direction is opposite to the second direction. The present invention detachably connects one end of the electrode to one end of the microneedle, and at the same time inserts the microneedle into the lumen of the microtube. After the microneedle and the microtube auxiliary electrode move in a first direction to reach the target position, the driving mechanism drives the microneedle to move in a second direction, and the microneedle is separated from the electrode. At the same time, the microtube also separates, thereby achieving the purpose of effectively removing the microtube and microneedle after the electrode is implanted, thereby reliably removing the microtube and microneedle after the electrode is implanted, leaving only the flexible electrode in the body, thereby solving the technical problem of the existing catheter-guided flexible implantation technology that the auxiliary microneedle and microtube cannot be removed after the electrode is implanted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 is a structural schematic diagram of an electrode implant assembly provided according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of electrode assembly in an electrode implant assembly provided according to an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the implantation process of an electrode implant assembly provided according to an embodiment of the present invention.

[0024] in, Figure 1 The following reference numerals are included: 11, microtube; 111, groove; 12, electrode; 13, microneedle; Figure 2 The following figures are included: 141, first driving part; 1411, first translation stage; 1412, first clamping part; 142, second driving part; 1421, second translation stage; 1422, second clamping part; 1423, electrode clamping part; 143, base; 144, extension arm. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] Figure 1 FIG. 1 is a schematic structural diagram of an electrode implant assembly according to an embodiment of the present invention. Figure 1 As shown, the electrode implant assembly includes: a microtube 11, both ends of the microtube 11 are open and have a lumen; a microneedle 13, the microneedle 13 is movably arranged in the lumen; an electrode 12, one end of the electrode 12 is detachably connected to one end of the microneedle 13; a driving mechanism, the driving mechanism is connected to the microtube 11 and the microneedle 13 respectively, when the driving mechanism drives the microneedle 13 to move in a first direction, the microneedle 13 is connected to the electrode 12, and the microneedle 13 drives the electrode 12 to move, when the driving mechanism drives the microneedle 13 to move in a second direction, the microneedle 13 is separated from the electrode 12, wherein the first direction is opposite to the second direction.

[0029] Figure 2This is a schematic diagram of an electrode assembly in an electrode implant assembly according to an embodiment of the present invention, with reference to Figure 2 For example, the microtube 11 is a slender tubular structure with two ends open and a lumen formed inside. In the embodiment of the present invention, the microtube is used to guide the precise delivery of electrodes and microneedles in brain tissue.

[0030] The microneedle 13 is a tiny needle-like structure that penetrates the lumen of the microtube and is used to push the electrode 12 into the target location. The tip of the microneedle is specially designed to reduce tissue damage.

[0031] During implantation, microneedle 13 connects to electrode 12, penetrating the dura mater together. Microneedle 13 is then separated from electrode 12 under specific procedures, allowing electrode 12 to remain independently within the brain tissue. The detachable design of microneedle 13 is key to enabling the removal of both the microneedle and microtube.

[0032] The electrode 12 is a conductive element capable of detecting and recording bioelectrical activities. The electrode 12 in the embodiment of the present invention is highly flexible and can remain independently in the target brain area after penetrating the dura mater.

[0033] The driving mechanism is a mechanical device that controls the movement of the microtube 11 and the microneedle 13. Through precise control, it enables the microneedle 13 to move in the first direction (entering the target brain area) and the second direction (withdrawing from the target brain area) at specific moments, thereby realizing the connection and separation of the microneedle 13 and the electrode.

[0034] Precise control of the driving mechanism is the guarantee of the reliability of the entire implantation process. It ensures that the microneedle 13 is connected to the electrode 12 when penetrating the dura mater, and is separated from the electrode 12 after the implantation is completed.

[0035] In an embodiment of the present invention, an electrode implant assembly is provided, comprising: a microtube 11, wherein both ends of the microtube 11 are open and have a lumen; a microneedle 13, wherein the microneedle 13 is movably arranged in the lumen; an electrode 12, wherein one end of the electrode 12 is detachably connected to one end of the microneedle 13; and a driving mechanism, wherein the driving mechanism is connected to the microtube 11 and the microneedle 13 respectively, and when the driving mechanism drives the microneedle 13 to move in a first direction, the microneedle 13 is connected to the electrode 12, and the microneedle 13 drives the electrode 12 to move; and when the driving mechanism drives the microneedle 13 to move in a second direction, the microneedle 13 is separated from the electrode 12, wherein the first direction is opposite to the second direction. The present invention detachably connects one end of the electrode 12 to one end of the microneedle 13, and at the same time inserts the microneedle 13 into the lumen of the microtube 11. After the microneedle 13 and the microtube 11 assist the electrode 12 in moving in the first direction to reach the target position, the driving mechanism drives the microneedle 13 to move in the second direction, and the microneedle 13 is separated from the electrode 12. At the same time, the microtube 11 also performs a separation movement, thereby achieving the purpose of effectively removing the microtube 11 and the microneedle 13 after the electrode is implanted, thereby achieving the reliable removal of the microtube 11 and the microneedle 13 after the electrode is implanted, leaving only the flexible electrode in the body, thereby solving the technical problem of the existing catheter-guided flexible implantation technology that the auxiliary microneedle and microtube cannot be removed after the electrode is implanted.

[0036] Optionally, one end of the microtube 11 has a tip.

[0037] The tip of the microtube 11 refers to a sharp structure formed by special processing at one end of the microtube, which is used to penetrate the dura mater and other tissue barriers and guide the electrode 12 and the microneedle 13 into the brain tissue.

[0038] It should be noted that the design of the tip must take into account factors such as hardness, shape, and angle to ensure that it can successfully penetrate the dura mater without causing excessive damage to surrounding tissues.

[0039] The sharp design of the tip of the microtube 11 can effectively reduce the resistance during the process of penetrating the dura mater, making the entire implantation process smoother.

[0040] Optionally, a groove 111 is formed at one end of the microtube 11 , and the width of the groove 111 is greater than the width of the electrode 12 . The electrode 12 is detachably connected to one end of the microneedle 13 via the groove 111 .

[0041] The groove 111 is a narrow space specially processed at the end of the microtube 11 , and its width is greater than that of the electrode 12 so as to accommodate the electrode 12 without causing jamming.

[0042] The electrode 12 and the microneedle 13 are detachably connected via the groove 111 , that is, after the electrode 12 is successfully implanted into the target brain area, it can be safely separated from the microneedle 13 , ensuring that the electrode 12 remains independently in the body while the microneedle can be withdrawn.

[0043] The detachable connection between the electrode 12 and the microneedle 13 means that after the electrode 12 is successfully implanted, the microneedle 13 can be withdrawn from the groove and completely detached from the electrode 12, leaving only the electrode 12 for long-term signal acquisition. This solves the technical problem of the existing catheter-guided flexible implantation technology that the auxiliary microneedles and microtubes cannot be removed after the electrode is implanted.

[0044] Optionally, the wall of the microtube 11 has an opening, the diameter of the opening is larger than the width of the electrode 12, and the electrode 12 is detachably connected to one end of the microneedle 13 through the opening.

[0045] A hole is opened on the wall of the microtube 11, and its diameter is larger than the width of the electrode 12. This design ensures that the electrode 12 can pass through the microtube 11 smoothly and form a connection with the microneedle 13 during the implantation process.

[0046] The electrode 12 and the microneedle 13 are connected in a detachable manner. This mechanism ensures a firm connection between the two during surgical implantation, and can be disconnected after implantation is complete, ensuring the safe removal of the microneedle 13 and the retention of the electrode 12.

[0047] Optionally, the microneedle 13 includes a needle head and a needle body, the radius of the needle head is smaller than the radius of the needle body, and the electrode 12 can be detachably connected to the needle head.

[0048] The microneedle 13 consists of a needle head and a needle body, wherein the radius of the needle head is smaller than the radius of the needle body. The purpose of this design is to reduce the resistance and damage generated when puncturing the dura mater and brain tissue.

[0049] The needle tip refers to the front end portion of the microneedle 13 and has a smaller radius, which is intended to reduce damage to tissue during the puncture process and improve the accuracy of the puncture.

[0050] The needle body is the main part of the microneedle 13 and has a relatively large radius, providing sufficient structural strength to ensure the stability and durability of the microneedle as a whole.

[0051] The electrode 12 and the needle tip of the microneedle 13 form a detachable connection, ensuring that the two fit closely during the implantation process, facilitating the guidance of the electrode 12 to the target position, and can be safely disconnected after the implantation is completed, leaving only the electrode 12 in the brain tissue.

[0052] Optionally, one end of the electrode 12 has an opening, and the needle passes through the opening and is detachably connected to the electrode 12 .

[0053] The opening of the electrode 12 is used to form a detachable connection between the electrode 12 and the needle tip of the microneedle 13. The size of the opening needs to ensure that the needle tip can pass through smoothly, but not too large to affect the structural integrity and functional performance of the electrode 12.

[0054] Optionally, the portion of the electrode 12 connected to the microneedle 13 is located inside the lumen, and the rest of the microneedle 13 is located outside the lumen.

[0055] The lumen is the space inside the microtube 11 , and the connection part is designed inside the lumen of the microtube 11 , which helps to protect the connection point during the puncture process and reduce the interference of external factors on the stability of the connection.

[0056] Except for the part connected to the electrode 12, the rest of the microneedle 13 (such as the puncture end and the operation end) is located outside the lumen. This layout enables the microneedle 13 to be precisely manipulated externally during the puncture process, while ensuring that the separation of the electrode 12 and the microneedle 13 occurs within the lumen, which is convenient for control and execution.

[0057] Optionally, the electrode 12 is located within the lumen.

[0058] The design of the electrode 12 located within the lumen significantly reduces surgical risks during implantation. The electrode 12 is protected by the microtube 11, avoiding direct contact with the dura mater and brain tissue, reducing the possibility of tissue damage and accelerating postoperative recovery in animal models or patients.

[0059] Alternatively, as Figure 1 As shown, the driving mechanism includes a first driving part 141 and a second driving part 142 arranged on the base 143. The first driving part 141 is connected to the microtube 11 and is used to drive the microtube 11 to move. The second driving part 142 is connected to the microneedle 13 and is used to drive the microneedle 13 to move. The microtube 11 and the microneedle 13 move concentrically.

[0060] The driving mechanism is composed of a first driving part 141 and a second driving part 142, which is used to control the movement of the microtube 11 and the microneedle 13 and is a core component for achieving electrode implantation.

[0061] The first driving unit 141 is connected to the microtube 11 and drives the microtube 11 to move along a predetermined path to a target position through mechanical or electronic control.

[0062] The second driving unit 142 is connected to the microneedle 13 and also drives the puncture and withdrawal movement of the microneedle 13 through precise control, which is synchronized with the movement of the microtube 11 to ensure the stable implantation of the electrode 12.

[0063] The concentric movement of the microtube 11 and the microneedle 13 refers to the parallel movement of the microtube 11 and the microneedle 13 along the same axis under the action of the driving mechanism. This movement mode ensures the precise guidance of the electrode 12 during the puncture process.

[0064] The precise control of the driving mechanism ensures the synchronous movement of the microtube 11 and the microneedle 13. The electrode 12 can be accurately placed at the target position under the action of concentric movement, thereby improving the accuracy and repeatability of the implantation.

[0065] At the same time, through the control of the driving mechanism, the microneedle 13 and microtube 11 can be safely and accurately withdrawn from the body, leaving only the electrode 12 for long-term signal monitoring, meeting the needs of chronic recording and providing convenient conditions for long-term neural signal research.

[0066] Optionally, the first driving part 141 includes a first displacement platform 1411, a first clamping part 1412 and an extension arm 144. The first clamping part 1412 can be movably connected to the base 143. The first displacement platform 1411 is connected to the first clamping part 1412 to drive the first clamping part 1412 to move. One end of the extension arm 144 is connected to the first clamping part 1412, and the other end of the extension arm 144 is connected to the microtube 11.

[0067] The first translation stage 1411 is a linear or rotational motion platform used to precisely control the displacement of the first clamping portion 1412, thereby indirectly controlling the movement of the microtube 11. The accuracy of the first translation stage 1411 directly affects the accuracy and safety of the entire implantation process.

[0068] The first clamping portion 1412 is responsible for securing and controlling the microtube 11. By connecting to the first translation stage 1411, the first clamping portion 1412 can smoothly move the microtube 11. The design of the first clamping portion 1412 must balance clamping force with gentle handling of the microtube 11 to avoid damage to the microtube 11 structure.

[0069] The extension arm 144 is a slender mechanical arm located between the first clamping portion 1412 and the microtube 11, and plays the role of transmitting motion. The design of the extension arm 144 must take into account the connection stability between the first clamping portion 1412 and the microtube 11 and the accuracy of motion transmission.

[0070] The base 143 is the basic support platform of the entire driving mechanism, and is used to carry the first translation stage 1411 and the first clamping portion 1412 to ensure their stability and reliability during movement.

[0071] Optionally, the second driving portion 142 includes a second displacement platform 1421 and a second clamping portion 1422 . The second clamping portion 1422 is movably connected to the base 143 . The second displacement platform 1421 is connected to the second clamping portion 1422 to drive the second clamping portion 1422 to move.

[0072] The second displacement stage 1421 is a linear displacement control device that can accurately control the displacement direction and distance of the second clamping portion 1422 , thereby controlling the advancement and retraction of the microneedle 13 .

[0073] The second clamping portion 1422 is used to fix and control the microneedle 13. By connecting with the second translation stage 1421, the second clamping portion 1422 can accurately drive the microneedle 13 to move according to the instructions of the translation stage.

[0074] The base 143 provides stable support and positioning, ensuring the accuracy and reliability of the second translation stage 1421 and the second clamping portion 1422 during movement.

[0075] Optionally, the first clamping portion 1412 and the second clamping portion 1422 are letter-shaped structures and are arranged correspondingly. The letter-shaped structure can be a T-shaped structure, an I-shaped structure, an H-shaped structure, etc.

[0076] Optionally, the driving mechanism further includes an electrode clamping portion 1423 , which is used to fix the microneedle 13 and the electrode 12 .

[0077] The electrode clamping portion 1423 is used to fix the mechanical structure of the microneedle 13 and the electrode 12 to ensure the stability of the electrode 12 and the microneedle 13 during the implantation process, and to safely release the electrode 12 and withdraw the microneedle 13 after the implantation is completed.

[0078] According to another aspect of an embodiment of the present invention, an electrode implantation system is provided, comprising: a controller and the electrode implantation assembly described in any one of the above embodiments, wherein the controller is configured to control a driving mechanism to control the movement of the electrode.

[0079] The electrode implant system is preferably implemented in hardware, but a combination of software and hardware is also possible and contemplated.

[0080] Figure 3 FIG. 1 is a schematic diagram of an implantation process of an electrode implant assembly according to an embodiment of the present invention. Figure 3 As shown, the electrode implantation system performs implantation operations including:

[0081] (1) Assemble the microtube 11, microneedle 13, and electrode 12 and adjust them to their initial positions;

[0082] (2) driving the three simultaneously to penetrate the dura mater, with the tips of the microneedle 13 and the electrode 12 protected in the groove of the microtube 11;

[0083] (3) After penetrating the dura mater, the microneedle 13 is driven to move downward with the electrode 12 to the depth of the target brain area;

[0084] (4) driving the microneedle 13 and the microtube 11 to withdraw in sequence, wherein the order of withdrawing the microtube 11 and the microneedle 13 is not limited;

[0085] (5) Only the electrode 12 is left in the body to complete the implantation.

[0086] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0087] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0088] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0089] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An electrode implant assembly, characterized in that: include: A microtubule, wherein both ends of the microtubule are open and have a lumen; a microneedle, the microneedle being movably disposed in the lumen; an electrode, one end of the electrode being detachably connected to one end of the microneedle; A driving mechanism is connected to the microtube and the microneedle respectively. When the driving mechanism drives the microneedle to move in a first direction, the microneedle is connected to the electrode, and the microneedle drives the electrode to move. When the driving mechanism drives the microneedle to move in a second direction, the microneedle is separated from the electrode, wherein the first direction is opposite to the second direction.

2. The electrode implant assembly according to claim 1, characterized in that One end of the microtube has a tip.

3. The electrode implant assembly according to claim 1, characterized in that One end of the microtube is provided with a groove, the width of the groove is greater than the width of the electrode, and the electrode is detachably connected to one end of the microneedle via the groove.

4. The electrode implant assembly according to claim 1, characterized in that The microtube wall has an opening, the diameter of the opening is larger than the width of the electrode, and the electrode is detachably connected to one end of the microneedle through the opening.

5. The electrode implant assembly according to claim 1, characterized in that: The microneedle includes a needle head and a needle body. The radius of the needle head is smaller than the radius of the needle body. The electrode is detachably connected to the needle head.

6. The electrode implant assembly according to claim 5, characterized in that: One end of the electrode has an opening, and the needle passes through the opening and is detachably connected to the electrode.

7. The electrode implant assembly according to claim 1, characterized in that: The portion of the electrode connected to the microneedle is located in the lumen, and the remaining portion of the microneedle is located outside the lumen.

8. The electrode implant assembly according to claim 1, characterized in that: The electrode is located within the lumen.

9. The electrode implant assembly according to claim 1, characterized in that: The driving mechanism includes a first driving part and a second driving part arranged on the base, the first driving part is connected to the microtube and is used to drive the microtube to move, the second driving part is connected to the microneedle and is used to drive the microneedle to move, and the microtube and the microneedle move concentrically.

10. The electrode implant assembly according to claim 9, characterized in that: The first driving part includes a first displacement platform, a first clamping part and an extension arm. The first clamping part is movably connected to the base. The first displacement platform is connected to the first clamping part to drive the first clamping part to move. One end of the extension arm is connected to the first clamping part, and the other end of the extension arm is connected to the microtube.

11. The electrode implant assembly according to claim 9, characterized in that: The second driving portion includes a second translation platform and a second clamping portion. The second clamping portion is movably connected to the base. The second translation platform is connected to the second clamping portion to drive the second clamping portion to move.

12. The electrode implant assembly according to claim 9, characterized in that: The driving mechanism further includes an electrode clamping portion, which is used to fix the microneedle and the electrode.

13. An electrode implantation system, characterized in that: include: A controller and an electrode implant assembly as described in any one of claims 1 to 12, wherein the controller is used to control a driving mechanism in the electrode implant assembly to control the movement of the electrode.

Images