Implant assembly and corresponding implant device

Abstract

The implantation assembly is used for implanting an electrode wire and specifically comprises a puncture component, the puncture component is provided with a first end and a second end which are opposite to each other in the axial direction of the puncture component, the puncture component is provided with at least one built-in channel, and the first end is provided with an opening corresponding to the built-in channel; and the at least one guide component is accommodated in the at least one built-in channel and can move relative to the puncture component along the extension direction of the built-in channel so as to extend out or retract from the opening. By the adoption of the technical scheme, the electrode wire can be implanted into different depths and positions of the brain area from multiple directions and positions, so that a wider brain area can be covered, and higher implantation possibility and flexibility can be provided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an implant component and a corresponding implant device. Background Art

[0002] In the field of modern medicine, the diagnosis and treatment technologies for neurological diseases are constantly developing, among which the electrode wire implantation technology plays a key role in gaining a deeper understanding of the physiological and pathological mechanisms of the nervous system. By accurately implanting the electrode wire into specific areas of brain tissue, brain electrophysiological signals can be collected, providing an important basis for the diagnosis of neurological diseases such as epilepsy and Parkinson's disease. It can also be used for neuromodulation therapy to improve patient symptoms.

[0003] However, the existing electrode wire implantation technology has many shortcomings. Traditional implantation methods often require a larger skull window area, which undoubtedly increases the risk of surgery. Large-area skull window openings will not only cause great damage to the integrity of the skull, but may also cause complications such as infection and bleeding. Postoperative recovery is difficult and the recovery period is long, which brings great physical burden and psychological pressure to patients.

[0004] Existing technologies are also limited in terms of the number of electrodes implanted and the range of brain areas covered. Due to the lack of effective guidance and positioning devices, the number of electrodes that can be implanted at a time is limited, and the range of brain areas that the electrodes can reach is narrow, making it difficult to meet the needs of comprehensive diagnosis and treatment of complex neurological diseases. This limits doctors' in-depth understanding of the disease and affects the formulation and implementation of treatment plans.

[0005] In addition, the direction and angle of electrode wire implantation are difficult to control. Traditional puncture components and guidance methods lack flexibility, and cannot accurately implant electrode wires from multiple directions and positions, making it difficult to cover a wide range of brain areas. Moreover, during the implantation process, the electrode wire is prone to displacement or detachment, resulting in inaccurate implantation position, affecting the accuracy of signal acquisition and treatment effect. These problems need to be solved urgently to improve the safety, accuracy and effectiveness of electrode wire implantation technology. Summary of the invention

[0006] The technical problem solved by the present invention is to provide an improved implant component and a corresponding implant device.

[0007] To solve the above technical problems, an embodiment of the present invention provides an implant component, which is used to implant an electrode wire, and the implant component includes: a puncture component, which has a first end and a second end opposite to each other along its axial direction, and the puncture component has at least one built-in channel, wherein the first end is provided with an opening corresponding to the built-in channel; and at least one guide component, which is accommodated in the at least one built-in channel and can move relative to the puncture component along the extension direction of the built-in channel so as to extend or retract from the opening.

[0008] Optionally, the built-in channel extends from the second end toward the first end and toward an outer surface of the puncture component, and the opening is opened on the outer surface.

[0009] Optionally, there are a plurality of built-in channels, and at least a portion of the plurality of openings are opened at different positions of the outer surface along the circumference of the puncture component.

[0010] Optionally, at least a portion of the plurality of openings are opened at different positions of the outer surface along the axial direction of the puncture component.

[0011] Optionally, the inner diameters of the multiple built-in channels are the same.

[0012] Optionally, the inner diameter of the built-in channel ranges from 30 to 120 microns.

[0013] Optionally, the built-in channel includes an extension section and a curved section, the extension section extends from the second end toward the first end, the curved section extends from the extension section toward an axial direction deviating from the puncture component at a preset angle, the curved section is closer to the first end than the extension section, and the opening is opened at one end of the curved section away from the extension section.

[0014] Optionally, the extending section and the curved section are connected in an arc shape.

[0015] Optionally, at least a portion of the curved section extends in an arc shape or a spiral shape.

[0016] Optionally, the curved section is formed by twisting a section of the puncture component close to the first end.

[0017] Optionally, the preset angle ranges from 5° to 90°.

[0018] Optionally, the implant assembly also includes: a constraint structure, which is arranged on the outer surface of the puncture component; wherein the front end of the electrode wire is pre-connected with an end of the guide component close to the opening, and the electrode wire includes a first section extending from the front end toward the constraint structure and a second section at least partially constrained by the constraint structure, and the length of the second section is not greater than the target implantation depth of the electrode wire.

[0019] Optionally, the number of the constraint structures is the same as the number of the at least one built-in channel, and each of the constraint structures corresponds one-to-one to the corresponding built-in channel.

[0020] Optionally, the constraint structure is arranged along the axial direction of the puncture component on an outer surface of the puncture component that is further away from the first end relative to the opening of the corresponding built-in channel.

[0021] Optionally, the second segment can be constrained by the constraining structure in a constrained state, and as the guide component drives the front end of the electrode wire to move in the implantation direction, the second segment can automatically free itself from the constraining structure and gradually change from the constrained state to a free state.

[0022] Optionally, the constraint structure includes: a constraint portion, which can put the second section in a constrained state, and after the second section is separated from the constraint portion, the second section can be transformed from the constrained state to a free state.

[0023] Optionally, the second section can be constrained by the constraining structure in a folded state, and as the guide component drives the front end of the electrode wire to move in the implantation direction, the second section can automatically free itself from the constraining structure and gradually change from the folded state to the straightened state.

[0024] Optionally, the constraint structure includes: a constraint portion, which is capable of placing the second section in the folded state; and a recessed portion, which is formed on the outer surface of the puncture component; wherein the constraint portion covers or occupies at least a portion of the space of the recessed portion, and the constraint portion is capable of constraining the second section in the recessed portion, and the constraint portion is formed with a first hole and a second hole on both sides thereof for connecting the recessed portion with the outside world, and the first hole is closer to the first end than the second hole.

[0025] Optionally, in the folded state, the second section enters the recess from the first hole and leaves the recess from the second hole, and after completing the folded state, enters the recess from the second hole and leaves the recess from the first hole again.

[0026] Optionally, the front end of the electrode wire has a joining portion, and at least a portion of the guide component is pre-joined with the joining portion.

[0027] Optionally, the guiding component includes a matching portion, and the matching portion cooperates with the engaging portion to achieve connection between the front end of the electrode wire and the guiding component.

[0028] Optionally, the engaging portion is an electrode ring, and at least a portion of the guide component passes through the electrode ring in advance.

[0029] Optionally, the matching portion includes a stop portion, and the stop portion is used to limit the length of the guide component passing through the electrode ring.

[0030] Optionally, the diameter of the puncture component ranges from 400 to 600 microns.

[0031] Optionally, the first end of the piercing component is formed into a pointed end by a cutting process.

[0032] Optionally, the first end of the puncture component has a bevel, a conical surface, a spherical surface or a polygonal pyramid surface, and the opening is opened on the bevel, the conical surface, the spherical surface or the polygonal pyramid surface.

[0033] Optionally, the puncture component is made by three-dimensional printing technology.

[0034] Optionally, the material of the puncture component is selected from: resin, ceramic-alumina, aluminum alloy, copper alloy and titanium alloy.

[0035] Optionally, the diameter of the guide component ranges from 20 to 100 microns.

[0036] Optionally, the guide component is made of elastic material.

[0037] Optionally, the material of the guide component is selected from: titanium-nickel alloy, tungsten-rhenium alloy and stainless steel.

[0038] In order to solve the above technical problems, an embodiment of the present invention further provides an implant device, which includes the above implant component; a power component, which is connected to the implant component to drive the implant component to move.

[0039] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0040] An embodiment of the present invention provides an implant component, which is used to implant an electrode wire. The implant component includes: a puncture component, which has a first end and a second end opposite to each other along its axial direction, and the puncture component has at least one built-in channel, wherein the first end is provided with an opening corresponding to the built-in channel; and at least one guide component, which is accommodated in the at least one built-in channel and can move relative to the puncture component along the extension direction of the built-in channel so as to extend or retract from the opening.

[0041] By adopting the technical solution of the present application, the guide component is placed in the built-in channel of the puncture component, and a part of the guide component (such as the front end part) is extended from the corresponding opening of the built-in channel, and at the same time, the front end part of the guide component is pre-connected with the electrode wire. When performing the electrode implantation operation, for example, it is necessary to open a window on the skull to allow the first end of the puncture component to enter, and then after the first end of the puncture component successfully penetrates the target area of ​​the brain tissue, the guide component is further extended outward from the corresponding opening to drive the electrode wire to move and further implant it to the target depth of the brain tissue, thereby completing the implantation of the electrode wire. In this way, the window area of ​​the patient's skull can be significantly reduced, thereby greatly reducing the surgical risk and the difficulty of the patient's recovery. At the same time, by adopting the technical solution of the present application, the number of electrodes implanted at a single time and the range of brain areas that the electrodes can reach can be greatly increased.

[0042] Furthermore, by designing a puncture component with at least one built-in channel and a guide component capable of moving along the built-in channel, the electrode wire can be implanted at different depths and positions in the brain region from multiple directions and positions, thereby covering a wider range of brain regions and providing a higher implantation possibility and flexibility.

[0043] Furthermore, the built-in channel includes an extension section and a curved section, the extension section and the curved section are connected in an arc shape, and at least a portion of the curved section extends in an arc shape or a spiral shape. Thus, the arc shape or spiral shape design enables the guide component to pass through the curved section more smoothly during the implantation process, reducing the difficulty and damage of implantation, and at the same time, the arc shape or spiral shape design can provide more possibilities for the direction and angle of electrode wire implantation.

[0044] Furthermore, a restraining structure is provided on the outer surface of the puncture component, which can restrain a partial section of the electrode wire to remain in a specific position, thereby ensuring that the electrode wire does not move or fall off at will during the implantation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of an implant assembly according to an embodiment of the present invention;

[0046] Figure 2 yes Figure 1 A schematic diagram of the guide component;

[0047] Figures 3 to 7 is a schematic diagram of multiple embodiments of the puncture component in the embodiment of the present invention;

[0048] Figure 8 is a schematic diagram of an implant device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] As mentioned in the background technology, the existing brain electrode implantation operation requires opening a large area of ​​the skull to expose a large area of ​​brain surface tissue, which has a greater surgical risk and brain damage risk, and the complexity of the operation and the difficulty of patient recovery are relatively high. At the same time, the number of electrodes implanted at a time and the range of brain areas that the electrodes can reach are relatively limited.

[0050] To solve the above technical problems, an embodiment of the present invention provides an implant component, which is used to implant an electrode wire, and the implant component includes: a puncture component, which has a first end and a second end opposite to each other along its axial direction, and the puncture component has at least one built-in channel, wherein the first end is provided with an opening corresponding to the built-in channel; and at least one guide component, which is accommodated in the at least one built-in channel and can move relative to the puncture component along the extension direction of the built-in channel so as to extend or retract from the opening.

[0051] By adopting the technical solution of the present application, the guide component is placed in the built-in channel of the puncture component, and a part of the guide component (such as the front end part) is extended from the corresponding opening of the built-in channel, and at the same time, the front end part of the guide component is pre-connected with the electrode wire. When performing the electrode implantation operation, for example, it is necessary to open a window on the skull to allow the first end of the puncture component to enter, and then after the first end of the puncture component successfully penetrates the target area of ​​the brain tissue, the guide component is further extended outward from the corresponding opening to drive the electrode wire to move and further implant it to the target depth of the brain tissue, thereby completing the implantation of the electrode wire. In this way, the window area of ​​the patient's skull can be significantly reduced, thereby greatly reducing the surgical risk and the difficulty of the patient's recovery. At the same time, by adopting the technical solution of the present application, the number of electrodes implanted at a single time and the range of brain areas that the electrodes can reach can be greatly increased.

[0052] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0053] Figure 1 is a schematic diagram of an implant assembly 10 according to an embodiment of the present invention, Figure 2 yes Figure 1 Schematic diagram of the guide component 2.

[0054] Combination Figure 1 and Figure 2 The implant component 10 is used to implant an electrode wire 20, and the implant component 10 includes: a puncture component 1, wherein the puncture component 1 has a first end 11 and a second end opposite to each other along its axial direction, and the puncture component 1 has at least one built-in channel 12, wherein the first end 11 is provided with an opening 13 corresponding to the built-in channel 12; at least one guide component 2, wherein the at least one guide component 2 is accommodated in the at least one built-in channel 12, and can move relative to the puncture component 1 along the extension direction of the built-in channel 12 so as to extend from or retract from the opening 13.

[0055] In a specific embodiment, the puncture component 1 may be, for example, a puncture needle. The first end 11 of the puncture component 1 is formed with a sharp tip, which can penetrate the meninges and / or brain surface tissue so that the first end 11 extends into the target area of ​​the brain tissue.

[0056] Furthermore, at least one built-in channel 12 is formed inside the puncture component 1 , and an opening of the built-in channel 12 may be opened at the first end 11 .

[0057] Further, the implant assembly 10 includes at least one guide component 2, which is accommodated in the built-in channel 12 of the puncture component 1 and can move relative to the puncture component 1 along the extension direction of the built-in channel 12. The end of the guide component 2 close to the first end 11 can extend from the opening 13, and the guide component 2 can further penetrate the target area of ​​the brain tissue to deliver the electrode wire 20 into the target area.

[0058] Furthermore, after the electrode wire 20 is implanted, the guide component 2 can be separated from the electrode wire 20, and the electrode wire 20 can be left in the target area of ​​the brain tissue. In the process of removing the implant component 10, the guide component 2 can be retracted from the opening 13 into the built-in channel 12 to reduce the contact area between the implant component 10 and the brain tissue, thereby avoiding secondary damage to the brain tissue in the process of removing the implant component 10.

[0059] Furthermore, the guide component 2 can move relative to the puncture component 1 along the extension direction of the built-in channel 12, so as to extend or retract the built-in channel 12 from the opening 13. In this scenario, the built-in channel 12 can provide a guide for the movement of the guide component 2, thereby making the extension direction of the guide component 2 consistent with the direction of the opening 13.

[0060] In some embodiments, the built-in channel 12 extends from the second end toward the first end 11 and toward the outer surface of the piercing component 1 , and the opening 13 is opened on the outer surface. The outer surface includes the end surface and side surfaces of the first end 11 .

[0061] It should be understood that the first end 11 refers to the section of the piercing member 1 that forms the tip, rather than just the end point of the tip.

[0062] In some embodiments, the extension direction of the built-in channel 12 and the position of the opening 13 can be adjusted according to different application scenarios and surgical requirements. Thus, the implant assembly 10 can become more versatile and flexible and can adapt to a variety of different surgical scenarios.

[0063] In some embodiments, the number of the built-in channels 12 can be multiple.

[0064] In some embodiments, the guide component 2 may be placed in each of the multiple built-in channels 12. In some practical application scenarios, the guide component 2 may be placed only in a portion of the multiple built-in channels 12. In other words, the number of built-in channels 12 used in the multiple built-in channels 12 may be determined according to actual conditions.

[0065] In some embodiments, at least a portion of the plurality of openings 13 are opened at different positions of the outer surface along the circumference of the puncture component 1 .

[0066] In some embodiments, at least a portion of the plurality of openings 13 are opened at different positions of the outer surface along the axial direction of the puncture component 1 .

[0067] Thus, more openings 13 can be opened on the outer surface, and more built-in channels 12 can be formed in the puncture component 1, so as to further improve the number and efficiency of electrode implantation.

[0068] In some embodiments, the inner diameters of the plurality of built-in channels 12 are the same, thereby simplifying the manufacturing process of the puncture component 1 and ensuring the consistency and reliability of all built-in channels 12 .

[0069] In some embodiments, the inner diameter of the built-in channel 12 ranges from 30 to 120 microns.

[0070] In actual application scenarios, the inner diameter of the built-in channel 12 can be determined according to specific actual needs. For example, when a large number of electrode wires 20 need to be implanted in a single operation, a puncture component 1 with a smaller channel inner diameter can be used. Thus, without increasing the size of the puncture component 1, more built-in channels 12 can be opened to accommodate more guide components 2.

[0071] For another example, when the density of the target brain tissue is relatively high, a puncture component 1 with a larger inner diameter of the channel can be used. Thus, the guide component 2 with a larger size and higher mechanical strength can be accommodated in the built-in channel 12, and the guide component 2 can extend or retract from the corresponding opening 13 along the built-in channel 12 to puncture the target area of ​​the brain tissue or withdraw from the target area.

[0072] In some embodiments, the inner diameter of the built-in channel 12 may be slightly larger than the outer diameter of the guide component 2. Thus, while not hindering the movement of the guide component 2, unnecessary shaking of the guide component 2 in the built-in channel 12 can be avoided.

[0073] In some embodiments, reference Figures 1 to 7 The built-in channel 12 includes an extension section 121 and a curved section 122, the extension section 121 extends from the second end toward the first end 11, the curved section 122 extends from the extension section 121 toward the axial direction of the puncture component 1 at a preset angle, the curved section 122 is closer to the first end 11 than the extension section 121, and the opening 13 is opened at one end of the curved section 122 away from the extension section 121.

[0074] In a specific embodiment, the extension section 121 and the curved section 122 together constitute the built-in channel 12, and the guide component 2 can move along the extension direction of the extension section 121 and the curved section 122, wherein the extension section 121 can extend, for example, along a straight line, and the extension direction of the extension section 121 can be parallel to the direction in which the second end points to the first end 11, that is, the extension direction of the extension section 121 can be parallel to the extension direction of the puncture component 1. More built-in channels 12 can be provided along the axial direction of the puncture component to increase the number of electrode wires 20 that can be implanted in a single implantation operation, thereby improving the implantation efficiency and shortening the window opening time of the brain tissue.

[0075] Furthermore, the curved section 122 is connected to the extending section 121 , and at least a portion of the guide component 2 can move from the extending section 121 to the curved section 122 , and change the moving direction of the guide component 2 itself along the extending direction of the curved section 122 .

[0076] In some practical application scenarios, the movement direction (or implantation direction) of the guide component 2 is substantially consistent with the extension direction of the curved section 122 .

[0077] Furthermore, the connection between the curved section 122 and the extension section 121 may be closer to the first end 11 than the second end. Thus, the curved section 122 can be formed in the built-in channel 12 by processing only the section of the puncture component 1 close to the first end 11, which can effectively reduce the production and processing costs.

[0078] In some embodiments, the extension section 121 and the curved section 122 are connected in an arc shape, so that the guide component 2 can move from the extension section 121 to the curved section 122 more smoothly, thereby preventing the guide component 2 from moving unsmoothly in the built-in channel 12 and affecting the smooth implantation operation.

[0079] In some embodiments, reference Figure 1 , Figures 3 to 7 At least a portion of the curved section 122 may be arc-shaped, thereby making the movement of the guide component 2 smoother.

[0080] In some embodiments, the entirety of the curved segment 122 may extend along an arc.

[0081] In other embodiments, a portion of the curved section 122 close to the extending section 121 may extend along an arc, and a portion of the curved section 122 away from the extending section 121 may extend along a straight line.

[0082] In some embodiments, Figure 7 As shown, the curved section 122 may also extend in a spiral shape. For example, the curved section 122 may extend in the shape of a cylindrical spiral line. Thus, the spirally extended curved section 122 can provide a larger buffer space for the turning of the guide component 2, thereby avoiding a head-on collision between the guide component 2 and the wall of the built-in channel 12 (especially the connection between the extension section 121 and the curved section 122), causing the movement of the guide component 2 in the built-in channel 12 to become stuck, thereby affecting the smooth progress of the implantation operation.

[0083] like Figure 1 as well as Figures 3 to 7 As shown, the curved section 122 extending in a spiral shape or twisted at a preset angle is at least partially located in the first end 11 (which forms a tip) of the puncture component 1, that is, the curved section 122 extending in a spiral shape or twisted at a preset angle is arranged in the tip, and this structure has at least the following beneficial technical effects: this structure can realize multi-directional and multi-angle implantation of the electrode wire 20 while minimizing the space occupied by the front end of the implant component 10 and causing minimal damage to the implanted object, thereby covering a wider range of brain areas. It should be emphasized that through this structure, the minimum space occupation and the minimum implantation damage are achieved, and a single implantation can realize the electrode implantation arrangement in multiple directions, multiple angles and multiple brain areas.

[0084] In some embodiments, the curved section 122 is formed by twisting a section of the piercing member 1 close to the first end 11 .

[0085] For example, in a typical manufacturing scenario, before the curved section 122 is formed, the puncture component 1 includes a plurality of built-in channels 12, and the extension directions of the plurality of built-in channels 12 are all parallel to the extension direction of the puncture component 1. Further, along a plane perpendicular to the extension direction of the puncture component 1, the section of the puncture component close to the first end 11 is twisted to form the curved section 122. Thus, the production and processing methods of the implant component 10 can be made simpler and the production cost can be lowered.

[0086] In some embodiments, the preset angle ranges from 5° to 90°. Thus, the electrode wire 20 implanted by the implant assembly 10 can touch a wider range of brain tissue, so as to implant the electrode wire 20 in multiple brain regions in a single implantation operation. In some preferred embodiments, the preset angle ranges from 5° to 30°.

[0087] In actual applications, the puncture component 1 can first penetrate the brain tissue and reach the target depth, and then the guide component 2 can extend from the opening 13 of the built-in channel 12 at a specific angle (for example, a preset angle) and further penetrate the target area of ​​the brain tissue (the guide component 2 carries the electrode wire 20), thereby implanting the electrode wire 20 in the target area of ​​the brain tissue.

[0088] exist Figure 3 In the embodiment shown, the preset angle is 90°. Thus, the guide component 2 can be extended in a direction substantially perpendicular to the puncture direction of the puncture component 1, and the electrode wire 20 can be implanted into the target area of ​​the brain tissue. In this case, the electrode wire 20 can be implanted into a wider range of target areas in the brain tissue that are in the same horizontal plane as the depth reached by the opening 13.

[0089] exist Figures 4 to 6 In the illustrated embodiment, the preset angle of a portion of the built-in channels 12 is 15°.

[0090] In some embodiments, the preset angle at which the curved section 122 of at least one built-in channel 12 deviates from the extending section 121 is different from the preset angle at which the curved section 122 of other built-in channels 12 deviates from the extending section 121 .

[0091] In some embodiments, the diameter of the puncture component 1 ranges from 400 to 600 microns, thereby minimizing the opening area of ​​the brain (skull) and reducing the risk of infection, while also ensuring the puncture strength of the puncture component 1, ensuring that the puncture component 1 can smoothly penetrate the brain tissue, and avoiding unexpected situations such as deformation or bending during the puncture process.

[0092] In some embodiments, the first end 11 of the puncture component 1 can be formed into a tip by a cutting process, thereby simplifying the process of forming the tip, which is conducive to reducing the production cost of a single puncture component 1.

[0093] For example, reference Figure 4 and Figure 5 The tip of the piercing component 1 is formed by a cutting process. By controlling the length and angle of the cutting, the location of the opening 13 can also be adjusted. Figure 4 In the embodiment, the cutting angles and cutting lengths of the multiple cutting surfaces of the tip of the puncture component 1 are the same, so that the opening positions of the multiple openings 13 are basically on the same horizontal plane. Figure 5 In the embodiment, the cutting surface can extend from one side of the puncture component 1 to the other side in the radial direction, and the plurality of openings 13 can be staggered and dispersed on the cutting surface, that is, the distances from the plurality of openings 13 to the end point of the first end 11 are not equal, and the opening 13 closer to the starting point of the cutting surface is farther from the end point of the first end 11. In practical applications, the specific structure of the puncture component 1 can be adjusted according to the actual needs of the implantation operation.

[0094] In some embodiments, the first end 11 of the puncture component 1 may have a bevel, a conical surface, a spherical surface or a polygonal pyramid surface, and the opening 13 is opened on the bevel, the conical surface, the spherical surface or the polygonal pyramid surface.

[0095] For example, the first end 11 of the piercing member 1 may have a bevel (eg Figures 3 to 5 ), the opening 13 is opened on the inclined surface; or, the first end 11 of the piercing member 1 may have a conical surface (such as Figure 6 ), the opening 13 is opened on a conical surface; or, the first end 11 of the puncture component 1 may have a spherical surface, and the opening 13 is opened on the spherical surface; or, the first end 11 of the puncture component 1 may have a polygonal pyramidal surface, and the opening 13 is opened on a polygonal pyramidal surface (such as Figure 7 ).

[0096] In some embodiments, the puncture component 1 is made by three-dimensional printing technology, thereby making it easier and more accurate to control the size parameters of the puncture component 1 and its built-in channel 12.

[0097] In some embodiments, the material of the puncture component 1 is selected from the group consisting of: resin, ceramic-alumina, aluminum alloy, copper alloy and titanium alloy.

[0098] refer to Figure 2 In some embodiments, the front end of the electrode wire 20 has a joint portion 203 , and at least a portion of the guide component 2 is pre-joined with the joint portion 203 .

[0099] In a specific application scenario, the joint portion 203 may be, for example, an electrode ring, which is sleeved on one end of the guide component 2 close to the opening 13 .

[0100] Furthermore, the guide member 2 may be needle-shaped and have a tip portion 22 at one end close to the opening 13. The engaging portion 203 may be pre-connected with the tip portion 22.

[0101] In some practical application scenarios, at least a portion of the tip portion 22 of the guide component 2 may extend from the opening 13 so as to be connected to the electrode wire 20. The electrode wire 20 is located outside the puncture component 1. When the puncture component 1 punctures the brain tissue, the joint portion 203 of the electrode wire 20 and the guide component 2 pre-connected with the joint portion 203 may follow the puncture component 1 into the brain tissue and reach the brain region at the target depth.

[0102] In some embodiments, the joint 203 and the tip 22 of the guide component 2 can be bonded by a biosoluble material such as protein glue. After the puncture component 1 punctures the target area of ​​the brain tissue, the electrode wire 20 can be implanted into the target area of ​​the brain tissue at a preset angle (i.e., along the extension direction of the curved section 122) by driving the guide component 2 to extend from the opening 13. Further, by pausing the operation, the tip 22 of the guide component 2 is temporarily stopped in the target area, for example, waiting for a specific period of time, so that the biosoluble material is dissolved or degraded, thereby achieving the decoupling of the joint 203 of the guide component 2 and the electrode wire 20. Further, by driving the guide component 2 to retreat to the built-in channel 12 in the opposite direction of the implantation path, the joint 203 can be left in the target area of ​​the brain tissue. After all the guide components 2 are recovered to the built-in channel 12, the puncture component 1 is withdrawn from the brain tissue, thereby ending the entire implantation process.

[0103] In some embodiments, the guide component 2 includes a matching portion 21 , and the matching portion 21 matches with the engaging portion 203 to achieve connection between the front end of the electrode wire 20 (ie, the engaging portion 203 of the electrode wire 20 ) and the guide component 2 .

[0104] In some embodiments, the mating portion 21 can be, for example, a step, a conical surface or annular groove formed on the outer circumferential surface of the guide component 2, and the electrode ring located at the front end of the electrode wire 20 can be hung on the step, conical surface or annular groove, thereby achieving the mating of the electrode wire 20 and the guide component 2, wherein the step, conical surface or annular groove is formed in a section of the guide component 2 close to the opening 13.

[0105] In some embodiments, the matching portion 21 includes a stopper 211 , and the stopper 211 is used to limit the length of the guide component 2 passing through the electrode ring.

[0106] In a specific embodiment, the stopper 211 is located on the guide component 2 near the tip 22. For example, the tip 22 may be a cone, the area of ​​the bottom surface of the cone is larger than the maximum area surrounded by the electrode ring, a portion of the cone near the cone apex can extend into the electrode ring, and the remaining portion of the cone away from the cone apex is suitable for forming the stopper 211.

[0107] In other embodiments, the cross-sectional area of ​​the tip portion 22 may be smaller than the cross-sectional area of ​​the rest of the guide component 2, and a step structure may be formed between the tip portion 22 and the rest of the guide component 2. The step structure may serve as a stopper 211, and the electrode ring is limited by the step structure, thereby preventing the guide component 2 from excessively penetrating the ring.

[0108] In some embodiments, the diameter of the guide component 2 ranges from 20 to 100 microns, thereby ensuring smooth movement of the guide component 2 in the built-in channel 12 and selecting a guide component 2 of appropriate size according to the implantation depth of the target area in the actual application scenario to ensure sufficient bending strength.

[0109] In some embodiments, the ratio between the diameter of the guide component 2 and the inner diameter of the built-in channel 12 can be, for example, 80% to 95%. Thus, on the one hand, it can be prevented that the guide component 2 shakes in the built-in channel 12, causing the portion of the guide component 2 extending into the brain tissue to cause increased damage to the brain tissue, and on the other hand, it can also be prevented that the guide component 2 strongly collides with the wall of the built-in channel 12 during movement.

[0110] In some embodiments, the guide component 2 is made of elastic material. Therefore, when the guide component 2 moves in the built-in channel 12, it can be deformed accordingly along the extension direction of the built-in channel 12, thereby ensuring that the final implantation direction is consistent with the preset direction.

[0111] In some embodiments, the material of the guide component 2 is selected from: titanium-nickel alloy, tungsten-rhenium alloy and stainless steel.

[0112] In some embodiments, in combination Figure 1 and Figure 2, the implant assembly 10 further includes: a constraint structure 3, the constraint structure 3 is arranged on the outer surface of the puncture component 1; wherein the front end of the electrode wire 20 is pre-connected with the end of the guide component 2 close to the opening 13, the electrode wire 20 includes a first section 201 extending from the front end toward the constraint structure 3 and a second section 202 at least partially constrained by the constraint structure 3, the length of the second section 202 is not greater than the target implantation depth of the electrode wire 20. In the preparatory stage of electrode implantation, the electrode wire 20 can be pre-assembled on the implant assembly 10, and the constraint structure 3 can make some sections of the electrode wire 20 present a state of being close to the outer wall of the puncture component 1. In this way, it is possible to avoid problems such as excessive overhang of the electrode wire 20 causing winding or knotting of the electrode wire, thereby affecting the normal implantation operation.

[0113] Furthermore, the second segment 202 can be constrained by the constraint structure 3 in a constrained state, and as the guide component 2 drives the front end of the electrode wire 20 to move in the implantation direction, the second segment 202 can automatically free itself from the constraint structure 3 and gradually change from the constrained state to a free state.

[0114] In some embodiments, the number of the constraint structures 3 is the same as the number of the at least one built-in channel 12, and each of the constraint structures 3 corresponds to the corresponding built-in channel 12. Thus, for each electrode wire 20 pre-connected with the guide component 2 accommodated in the built-in channel 12, there is a corresponding constraint structure 3 to constrain it.

[0115] Furthermore, the length of the second section 202 is no greater than the target implantation depth of the electrode wire 20, thereby ensuring that when the electrode wire 20 follows the guide component 2 to move to the target depth of the brain tissue, the second section 202 can be completely released from the constraint structure 3, that is, changed from a constrained state to a completely free state.

[0116] In some embodiments, the constraint structure 3 may be, for example, a hook disposed on the outer wall of the puncture component 1 , and the second section 202 of the electrode wire 20 may be suspended on the hook and close to the outer wall of the puncture component 1 .

[0117] Furthermore, the constraint structure 3 may be disposed along the axial direction of the puncture component 1 on an outer surface of the puncture component 1 that is further away from the first end 11 relative to the opening 13 of the corresponding built-in channel 12 .

[0118] In some embodiments, the constraint structure 3 is closer to the first end 11 than the second end, and is farther away from the first end 11 than the opening 13 .

[0119] In a specific embodiment, the constraint structure 3 includes: a constraint portion 31, which can put the second section 202 in a constrained state. After the second section 202 is separated from the constraint portion 31, the second section 202 can be transformed from the constrained state to a free state.

[0120] Furthermore, the second section 202 can be constrained by the constraining structure 3 in a folded state, and as the guide component 2 drives the front end of the electrode wire 20 to move in the implantation direction, the second section 202 can automatically release from the constraining structure 3 and gradually change from the folded state to the straight state. Thus, the second section 202 constrained in a folded state can further shorten the hanging length of the electrode wire 20, so as to avoid the electrode wire 20 from being entangled or knotted during the movement of the implant component 10.

[0121] Furthermore, the constraint structure 3 may also include: a recessed portion 32, which is formed on the outer surface of the puncture component 1; wherein the constraint portion 31 covers or occupies at least a portion of the space of the recessed portion 32, and the constraint portion 31 can constrain the second section 202 in the recessed portion 32, and the constraint portion 31 is formed with a first hole 321 and a second hole 322 on both sides thereof for connecting the recessed portion 32 with the outside, and the first hole 321 is closer to the first end 11 than the second hole 322.

[0122] Further, in the folded state, the second section 202 enters the recess 32 from the first hole 321 and leaves the recess 32 from the second hole 322 , and enters the recess 32 from the second hole 322 and leaves the recess 32 from the first hole 321 after completing the folded state.

[0123] In a specific application scenario, the pre-assembly process of the electrode wire 20 may include, for example, the following steps:

[0124] First, the joint portion 203 at the front end of the wire electrode 20 is connected to the fitting portion 21 of the guide member 2 .

[0125] Then, the second section 202 of the electrode wire 20 is made to be in a folded state, that is, the second section 202 enters the recessed portion 32 from the first hole 321, and then leaves the recessed portion 32 from the second hole 322. In this scenario, both ends of the second section 202 are constrained in the first hole 321. With the movement of the guide component 2, the first section 201 drives the second section 202 in the folded state to gradually leave the first hole 321 until the second section 202 completely leaves the constraining structure 3. At this time, the second section 202 changes from the constrained state to the free state.

[0126] refer to Figure 8 The present invention also provides an implant device 100, the implant device 100 comprising: Figures 1 to 7 The implant component 10 shown in the embodiment; the power component 30, the power component 30 is connected to the implant component 10 to drive the implant component 10 to move.

[0127] The power component 30 may be, for example, a motor, which can drive the implant component 10 to move according to program settings or human operation.

[0128] In some embodiments, the implant device 100 may further include a mechanical connecting arm 40 , and the implant component 10 is connected to the power component 30 via the mechanical connecting arm 40 .

[0129] It should be understood that the specific structure and working mode of the implant assembly 10 can be referred to above. Figures 1 to 8 The relevant description of the illustrated embodiment is not repeated here.

[0130] From the above, the technical solution of the present application is adopted to accommodate the guide component 2 in the built-in channel 12 of the puncture component 1, and a part of the guide component 2 (such as the front end part) is extended from the corresponding opening 13 of the built-in channel 12, and at the same time, the front end part of the guide component 2 is pre-connected with the electrode wire 20. When performing the electrode implantation operation, for example, it is necessary to open a window on the skull to allow the first end 11 of the puncture component 1 to enter, and then after the first end 11 of the puncture component 1 is successfully inserted into the target area of ​​the brain tissue, the guide component 2 is further extended outward from the corresponding opening 13 to drive the electrode wire 20 to move and further implant it to the target depth of the brain tissue, thereby completing the implantation of the electrode wire 20. In this way, the window area of ​​the patient's skull can be significantly reduced, thereby greatly reducing the surgical risk and the difficulty of the patient's recovery. At the same time, the technical solution of the present application can greatly increase the number of electrodes implanted at a single time and the range of brain areas that the electrodes can reach.

[0131] Furthermore, by designing a puncture component 1 with at least one built-in channel 12 and a guide component 2 capable of moving along the built-in channel 12, the electrode wire 20 can be implanted at different depths and positions in the brain region from multiple directions and positions, thereby covering a wider range of brain regions and providing a higher implantation possibility and flexibility.

[0132] Furthermore, the built-in channel 12 includes an extension section 121 and a curved section 122, the extension section 121 and the curved section 122 are connected in an arc shape, and at least a portion of the curved section 122 extends in an arc shape or a spiral shape. Thus, the arc shape or spiral shape design enables the guide component 2 to pass through the curved section 122 more smoothly during the implantation process, reducing the implantation difficulty and damage, and at the same time, the arc shape or spiral shape design can provide more possibilities for the implantation direction and angle of the electrode wire 20.

[0133] Furthermore, the restraining structure 3 provided on the outer surface of the puncture component 1 can restrain a partial section of the electrode wire 20 to remain at a specific position, thereby ensuring that the electrode wire 20 will not move or fall off at will during the implantation process.

[0134] It should be understood that the term "and / or" herein is merely an association relationship describing associated objects, indicating that three relationships may exist, for example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein indicates that the associated objects before and after are in an "or" relationship. As used herein, unless otherwise expressly stated, the term "or" covers all possible combinations unless not feasible. For example, if a component is stated to include A or B, then unless otherwise expressly stated or not feasible, the component may include A, or B, or A and B. As a second example, if a component is stated to include A, B, or C, then unless otherwise expressly stated or not feasible, the component may include A, or B, or C, or A and B, or A and C, or B and C, or A and B and C.

[0135] The "plurality" appearing in the embodiments of the present application refers to two or more.

[0136] Relational terms appearing in the embodiments of the present application, such as first, second, etc., are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship or order between these entities or operations. In addition, the words "include", "have", "include" and other similar forms are equivalent in meaning and are open-ended, and one or more items following any of these words are not meant to be an exhaustive list of such one or more items, or to be limited to the listed one or more items.

[0137] It should be pointed out that the serial numbers of the steps in this embodiment do not limit the execution order of the steps.

[0138] In the foregoing description, embodiments have been described with reference to many specific details, which may vary depending on the implementation. Certain changes and modifications may be made to the described embodiments. In view of the description and practice of the present application disclosed herein, other embodiments will be clear to those skilled in the art. The description and examples are intended to be considered as merely exemplary, and the true scope and spirit of the present application are indicated by the following claims. The order of steps shown in the accompanying drawings is also intended to be used for illustrative purposes only and is not intended to be limited to any particular order of steps. Therefore, it will be appreciated by those skilled in the art that these steps may be performed in different orders while implementing the same method.

[0139] In the drawings and the specification, exemplary embodiments have been disclosed. However, many variations and modifications may be made to these embodiments. Therefore, although specific terms are employed, they are used only in a general and descriptive sense and not for the purpose of limitation.

[0140] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An implant assembly, the implant assembly being used for implanting an electrode wire, characterized in that: The implant assembly comprises: A puncture component, wherein the puncture component has a first end and a second end opposite to each other along its axial direction, and the puncture component has at least one built-in channel, wherein the first end is provided with an opening corresponding to the built-in channel; at least one guide component, the at least one guide component being accommodated in the at least one built-in channel and being movable relative to the piercing component along the extension direction of the built-in channel so as to extend from or retract into the opening; wherein The built-in channel comprises an extension section and a curved section, and the extension section and the curved section are connected in an arc shape; and / or At least a portion of the curved section extends in an arc or spiral shape; and / or The bent section is formed by twisting a section of the piercing member close to the first end.

2. The implant assembly according to claim 1, characterized in that The extension section extends from the second end toward the first end, the curved section extends from the extension section toward a direction deviating from the axial direction of the puncture component at a preset angle, the curved section is closer to the first end than the extension section, and the opening is opened at one end of the curved section away from the extension section.

3. The implant assembly according to claim 2, characterized in that The preset angle ranges from 5° to 90°.

4. The implant assembly according to claim 1, characterized in that: The wire electrode has a front end with a joining portion, and at least a portion of the guide member is joined to the joining portion in advance.

5. The implant assembly according to claim 4, characterized in that: The guide component includes a matching portion, and the matching portion matches with the engaging portion to achieve the connection between the front end of the electrode wire and the guide component.

6. The implant assembly according to claim 5, characterized in that The engaging portion is an electrode ring, and at least a portion of the guide member is passed through the electrode ring in advance.

7. The implant assembly according to claim 6, characterized in that: The matching portion includes a stopper portion, and the stopper portion is used to limit the length of the guide component passing through the electrode ring.

8. The implant assembly according to claim 1, characterized in that: The diameter of the piercing member ranges from 400 to 600 microns; and / or The first end of the piercing component is formed into a pointed end by a cutting process; and / or The first end of the piercing component has an inclined surface, a conical surface, a spherical surface or a polygonal pyramid surface, and the opening is provided on the inclined surface, the conical surface, the spherical surface or the polygonal pyramid surface; and / or The piercing component is made by three-dimensional printing technology; and / or The material of the puncture component is selected from the group consisting of resin, ceramic-alumina, aluminum alloy, copper alloy and titanium alloy.

9. The implant assembly according to claim 1, characterized in that: The diameter of the guide member ranges from 20 to 100 micrometers; and / or The guide member is made of elastic material; and / or The material of the guide component is selected from: titanium-nickel alloy, tungsten-rhenium alloy and stainless steel.

10. An implant device, characterized in that: The implant device comprises: An implant assembly as claimed in any one of claims 1 to 9; A power component is connected to the implant component to drive the implant component to move.

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