An implantable neural signal device and an implantable neural signal system

Abstract

The application provides an implantable nerve signal device and an implantable nerve signal system. The implantable nerve signal device comprises an action assembly, a mounting seat and a limiting assembly. The action assembly comprises a shell and a stimulation module and / or an acquisition module arranged in the shell. The stimulation module is used for applying electric stimulation to target tissue, and the acquisition module is used for acquiring a potential signal of the target tissue. The mounting seat is provided with at least one mounting groove. The limiting assembly is correspondingly arranged on the mounting groove of the mounting seat. The limiting assembly comprises a rotating part and a locking part connected with each other. The rotating part is used for rotatingly driving the locking part to retract or extend out of the mounting groove. When the locking part extends out of the mounting groove, the locking part drives the shell to abut against the mounting seat, so that the shell is limited between the locking part and the mounting seat. The above structure can realize quick separation of the shell and the mounting seat, meet the use requirement that the action assembly needs to be implanted into position and then quickly separated from the mounting seat, and effectively simplify the operation process.

Description

Technical Field

[0001] This application relates to the field of implantable neural signaling devices, and more particularly to an implantable neural signaling device and an implantable neural signaling system. Background Technology

[0002] Currently, neural signaling systems incorporating implantable neural signalers are widely used in the medical field. In these systems, the implantable neural signalers are inserted into the patient's body to achieve therapeutic modulation of lesions and to collect relevant signals from those lesions. For example, neurostimulators modulate neural activity by sending electrical stimulation pulses to the brain or spinal cord, thereby treating neurological disorders such as Parkinson's disease, epilepsy, depression, and pain. Brain-computer interface systems based on neural signalers can collect neural electrical signals from the brain, enabling information interaction between the brain and external devices. However, traditional implantable electrodes suffer from the problem of inconvenient implantation of neural signalers, particularly the inability to quickly detach them from the installation device. This leads to cumbersome surgical procedures, difficulty in ensuring implantation positioning accuracy, increased risk of nerve tissue damage, prolonged surgical time, and increased surgical difficulty and postoperative complication rates. Summary of the Invention

[0003] In view of the above-mentioned technical problems existing in related technologies, this application provides an implantable neural signal device and an implantable neural signal system.

[0004] This application provides an implantable neural signaling device. The implantable neural signaling device includes an action component, a mounting base, and a limiting component. The action component includes a housing and a stimulation module and / or acquisition module disposed within the housing. The stimulation module is used to apply electrical stimulation to target tissue, and the acquisition module is used to acquire the potential signal of the target tissue. The mounting base has at least one mounting slot. The limiting component is correspondingly disposed on the mounting slot of the mounting base. The limiting component includes a rotating part and a locking part connected to each other. The rotating part is used to rotatably drive the locking part to retract or extend out of the mounting slot. When the locking part extends out of the mounting slot, it drives the housing against the mounting base to limit the housing between the locking part and the mounting base.

[0005] In some embodiments, the limiting component further includes an elastic element sleeved on the rotating portion for applying a force to the locking portion to drive the locking portion back into the mounting groove.

[0006] In some embodiments, the locking portion is eccentrically disposed relative to the rotation center of the rotating portion.

[0007] In some embodiments, the housing has at least one connecting portion, and the locking portion acts on the connecting portion when it extends out of the mounting groove to abut the housing against the mounting base through the connecting portion.

[0008] In some embodiments, the limiting component further includes a stop block sleeved outside the rotating part, the stop block being located within the mounting groove, one end of the elastic member abutting against the stop block, and the other end abutting against the mounting base, the rotating part being used to drive the stop block to move linearly under force, so as to press or release the elastic member through the stop block.

[0009] In some embodiments, the mounting groove extends through the mounting base along the thickness direction, the elastic element is completely housed inside the mounting groove, and the locking portion is entirely located inside the mounting groove when it retracts into the mounting groove.

[0010] In some embodiments, the limiting component further includes a knob connected to the end of the rotating portion away from the locking portion.

[0011] In some embodiments, the connecting part has a hole structure, and the connecting part, the limiting component, and the mounting groove are provided in a one-to-one correspondence.

[0012] This application provides an implantable neural signal system, including the implantable neural signal device described in any of the above embodiments, and further including flexible electrodes electrically connected to the stimulation module and / or acquisition module.

[0013] In some embodiments, the implantable neural signaling system further includes a moving mechanism, the moving mechanism including a connecting rod, a connector movably disposed on the connecting rod, the mounting base being detachably connected to the connecting rod via the connector, and the connector having an anti-detachment portion to prevent the connector from detaching from the connecting rod.

[0014] Compared with related technologies, the beneficial effects of the embodiments of this application are as follows: This application uses the mounting groove on the mounting base and the rotating part and locking part of the limiting component. When the locking part extends out of the mounting groove, it drives the housing to abut against the mounting base, which can limit the housing between the locking part and the mounting base. Thus, by rotating the locking part to make the locking part extend and retract, the housing can be quickly installed and removed. That is, the locking part can be quickly installed when it extends and quickly removed when it retracts. The housing can be quickly separated from the mounting base without the use of other tools, which meets the use requirement that the implanted functional component can be quickly removed from the mounting base after it is implanted. This effectively simplifies the surgical operation process, ensures the implantation positioning accuracy of the functional component, reduces the risk of disturbing the target area nerve tissue during surgery, and helps to reduce postoperative complications. Attached Figure Description

[0015] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0016] Figure 1 This is a schematic diagram of the implantable neural signaling system according to an embodiment of this application.

[0017] Figure 2 This is a first structural schematic diagram of an implantable neural signaling device according to an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the implantable neural signaling system from another perspective, representing an embodiment of this application.

[0019] Figure 4 This is a partial exploded view of the implantable neural signaling device according to an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the limiting component of the implantable neural signal device according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the functional components of the implantable neural signaling device according to an embodiment of this application.

[0022] Figure 7 This is a schematic diagram of the second structure of the implantable neural signaling device according to an embodiment of this application.

[0023] Figure 8 This is a schematic diagram of the structure of the mobile mechanism of the implantable neural signal system according to an embodiment of this application.

[0024] The components indicated by the reference numerals in the figure: 1. Functional component; 11. Housing; 12. Connecting part; 2. Mounting base; 21. Mounting groove; 3. Limiting component; 31. Rotating part; 32. Locking part; 33. Elastic element; 34. Stop block; 35. Knob; 4. Flexible electrode; 5. Moving mechanism; 51. Connecting rod; 52. Connecting piece; 53. Anti-detachment part; 6. Electrode fixing component; 61. Support plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific examples, but these are not intended to limit the scope of this application.

[0026] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0027] In this application, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0028] All terms used in this application (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] The terms “proximal” and “distal” refer to the direction closer to or further away from the operator (e.g., surgeon, physician, nurse, technician, etc.) who implants the implantable neural signaling device into the patient, with at least the tip (i.e., distal or distal) of the device implanted in the patient. Therefore, for example, “proximal direction” refers to the direction towards the operator, while “distal direction” refers to the direction away from the operator towards the tip or distal end of the medical device. The same applies to “distal” and “proximal” in the following text, which will not be elaborated upon here.

[0031] This application provides an implantable neural signaling device. For example... Figures 1 to 5As shown, the implantable neural signal device includes an action component 1, a mounting base 2, and a limiting component 3. The action component 1 includes a housing 11 and a stimulation module and / or acquisition module disposed within the housing 11. The stimulation module is used to apply electrical stimulation to the target tissue, and the acquisition module is used to acquire the potential signal of the target tissue. The mounting base 2 is provided with at least one mounting groove 21. The limiting component 3 is correspondingly disposed on the mounting groove 21 of the mounting base 2. The limiting component 3 includes a rotating part 31 and a locking part 32 connected to each other. The rotating part 31 is used to rotatably drive the locking part 32 to retract or extend out of the mounting groove 21. When the locking part 32 extends out of the mounting groove 21, it drives the housing 11 to abut against the mounting base 2, so as to limit the housing 11 between the locking part 32 and the mounting base 2.

[0032] The aforementioned implantable neural signal device can be understood as an implantable instrument used in neuromodulation surgery. The functional component 1 can be implanted into the body to collect neural potential signals or output electrical stimulation to treat neurological diseases. The entire device consists of two main parts: a temporary intraoperative support structure and an in-body implantation structure. The functional component 1 is the part of the implantable neural signal device that remains in the body. The mounting base 2 is a temporary support structure, serving as a surgical aid carrier. It only temporarily supports and transports the functional component 1 during the implantation process and is removed along with the surgical instruments after implantation. The limiting component 3 is mounted on the mounting base 2 as a quick-release mechanism, ensuring reliable fixation and rapid release of the functional component 1 on the mounting base 2.

[0033] The housing 11 of the aforementioned functional component 1 can be understood as a hollow structural component used to accommodate and protect the internal functional modules. It can be made of biocompatible metallic materials (e.g., titanium alloys) or medical-grade polymer materials (e.g., polyetheretherketone). The outer contour of the housing 11 is preferably a flat or columnar structure with rounded corners to reduce mechanical damage to surrounding tissues during implantation. A sealed receiving chamber is formed inside the housing 11 for accommodating the stimulation module and / or acquisition module.

[0034] When the aforementioned functional component 1 includes a stimulation module, the stimulation module can be electrically connected to the electrode site on the flexible electrode 4 of the implantable neural signaling device to apply electrical stimulation to the target tissue through the electrode site.

[0035] When the aforementioned functional component 1 includes a data acquisition module, the data acquisition module can be electrically connected to the electrode site on the flexible electrode 4 of the implantable neural signal device to acquire the potential signal of the target tissue through the electrode site.

[0036] The aforementioned mounting base 2 can be spatially positioned during surgery using an external positioning device (such as a stereotactic instrument or a robotic arm) to deliver the active component 1 to the predetermined implantation location within the body. For example, the moving mechanism 5 described below can serve as an external positioning device.

[0037] The aforementioned mounting groove 21 can be understood as a through channel formed on the mounting base 2. Its size and shape are adapted to the limiting component 3, and it is used to accommodate the rotating part 31 of the limiting component 3, providing guidance and limiting for the movement of the rotating part 31. The number of mounting grooves 21 can be set according to actual locking requirements. For example, in the case of multi-point fixing, two or more mounting grooves 21 can be set on the mounting base 2. The distribution position of each mounting groove 21 on the mounting base 2 matches the corresponding force-bearing part on the housing 11 to achieve stable locking of the housing 11.

[0038] The aforementioned limiting component 3 is correspondingly disposed on the mounting slot 21 of the mounting base 2. The limiting component 3 is a functional unit for releasably locking the housing 11 onto the mounting base 2, and its number corresponds to the number of mounting slots 21, for example, one limiting component 3 is disposed in each mounting slot 21.

[0039] The aforementioned rotating part 31 can be understood as a rod-shaped or shaft-shaped component in the limiting assembly 3 capable of rotating around its own axis. It serves as an input and transmission element for operating force, converting externally applied rotational torque into power to drive the locking part 32. The length direction of the rotating part 31 can be the same as the depth direction of the mounting groove 21. The proximal end of the rotating part 31 (i.e., the end away from the locking part 32) extends out of the mounting base 2 for easy operation by the operator, while the distal end of the rotating part 31 (i.e., the end closer to the locking part 32) extends into or through the mounting groove 21 and connects to the locking part 32 to drive the locking part 32 to rotate.

[0040] The locking part 32 can be understood as an actuating component connected to the rotating part 31 and capable of changing position relative to the mounting groove 21 under the drive of the rotating part 31. It is used to form an abutment fit with the housing 11 when it extends out of the mounting groove 21. The rotating part 31 and the locking part 32 can be fixedly connected by various methods such as integral molding, welding, threaded connection or pin connection, so that the locking part 32 can move synchronously with the movement of the rotating part 31.

[0041] The aforementioned rotating part 31 is used to rotatably drive the locking part 32 to retract or extend from the mounting groove 21. Specifically, when the operator applies a rotational operation to the rotating part 31, the rotating part 31 rotates around its own axis, simultaneously driving the locking part 32 to undergo linear displacement along the depth direction of the mounting groove 21, thereby realizing the extension or retraction of the locking part 32 relative to the mounting groove 21. The locking part 32 extending out of the mounting groove 21 can be understood as at least a portion of the locking part 32 moving outward from the opening of the mounting groove 21 and protruding from the lower surface of the mounting base 2. The locking part 32 retracting into the mounting groove 21 can be understood as the locking part 32 moving from its protruding position on the surface of the mounting base 2 into the mounting groove 21 until its entirety does not exceed the lower surface of the mounting base 2. Through this motion conversion method of the rotating part 31 driving the locking part 32 to extend and retract, the operator only needs to rotate the rotating part 31 to achieve precise control of the position of the locking part 32, without the need for additional disassembly and assembly tools, thus improving the operator's ease of operation. Furthermore, by retracting the locking part 32 into the mounting groove 21, the locking part 32 can be protected, preventing the locking part 32 from breaking.

[0042] When the locking part 32 extends out of the mounting groove 21, it causes the housing 11 to abut against the mounting base 2, thereby confining the housing 11 between the locking part 32 and the mounting base 2. After the locking part 32 extends out of the mounting groove 21, its distal end face or sidewall contacts the corresponding part on the housing 11 (e.g., the edge of the housing 11, the lug, or the opening of the connecting hole), and applies a force to the contact part in the direction of movement towards the mounting base 2. Under the push of this force, the housing 11 is pressed tightly against the lower surface of the mounting base 2. When the locking part 32 remains in the extended position, a clamping space is formed between the locking part 32 and the mounting base 2, and the housing 11 is clamped in the clamping space. The locking part 32 applies a clamping force to the housing 11 from one side, and the mounting base 2 provides a supporting reaction force to the housing 11 from the other side. The two work together to fix the housing 11 at a predetermined position between the locking part 32 and the mounting base 2. When it is necessary to release the housing 11, the operator rotates the rotating part 31 in the opposite direction to retract the locking part 32 into the mounting groove 21. The force exerted by the locking part 32 on the housing 11 disappears, and the housing 11 can be detached from the mounting base 2. The above-mentioned quick-release and quick-installation method allows the active component 1 to be quickly detached from the mounting base 2 after implantation without the need for complicated disassembly operations, effectively shortening the operation time and reducing the risk of disturbance to the target area tissue.

[0043] This application utilizes the mounting groove 21 on the mounting base 2 and the rotating part 31 and locking part 32 of the limiting component 3. When the locking part 32 extends out of the mounting groove 21, it drives the housing 11 to abut against the mounting base 2, thereby limiting the housing 11 between the locking part 32 and the mounting base 2. Thus, by rotating the part 31 to drive the locking part 32 to perform telescopic movement, the housing 11 can be quickly installed and removed. That is, the locking part 32 can be extended to quickly install the functional component 1, and the locking part 32 can be retracted to quickly remove the functional component 1. The housing 11 can be quickly separated from the mounting base 2 without the use of other tools, which meets the need for the functional component 1 to be quickly removed from the mounting base 2 after it is implanted. This effectively simplifies the surgical procedure, ensures the implantation positioning accuracy of the functional component 1, reduces the risk of disturbing the target area nerve tissue during surgery, and helps to reduce postoperative complications.

[0044] In some embodiments, such as Figures 1 to 5 As shown, the limiting component 3 also includes an elastic element 33, which is sleeved on the rotating part 31 and is used to apply a force to the locking part 32 to drive the locking part 32 back into the mounting groove 21.

[0045] Thus, by providing the elastic element 33, when the locking part 32 extends out of the mounting groove 21 and drives the housing 11 to abut against the mounting base 2, the elastic element 33 can apply a continuous elastic force to the locking part 32. This elastic force is transmitted to the housing 11 through the locking part 32, thereby keeping the housing 11 stably in a locked state against the mounting base 2, effectively improving the installation stability and anti-loosening ability between the housing 11 and the mounting base 2. Furthermore, when installing the housing 11, locking can be completed by overcoming the force of the elastic element 33, providing a clear operational feel and facilitating accurate judgment of the locking state by the operator. The elastic element 33 also facilitates the reset function of the locking part 32; that is, when the rotating part 31 is rotated away from the housing 11, the elastic element 33 can retract the locking part 32 into the mounting groove 21, further improving the efficiency of disassembly and assembly.

[0046] The aforementioned elastic element 33 can specifically be a spring, an elastic rubber element, a spring sheet, or other structures. Of course, any device that can switch between a compressed state and a natural state after being subjected to force is within the scope of this application, and this application does not make any specific limitations on it. In this application, the elastic element 33 is preferably a helical compression spring, the inner diameter of which can be larger than the outer diameter of the rotating part 31, so that it can be fitted onto the outer circumferential surface of the rotating part 31.

[0047] The aforementioned elastic element 33 has a preset free length in the axial direction. One end of it acts directly or indirectly on the component linked to the rotating part 31 (such as the stop block 34 mentioned below), while the other end directly or indirectly abuts against the wall of the mounting base 2, such as against the bottom wall of the mounting groove 21.

[0048] When the rotating part 31 is subjected to an external force, causing the locking part 32 to move out of the mounting groove 21, the rotating part 31 will simultaneously compress the elastic element 33, causing the elastic element 33 to undergo axial compression deformation and store elastic potential energy. When the external force is removed, the elastic potential energy stored in the elastic element 33 will be transferred to the housing 11 via the locking part 32, keeping the housing 11 stably locked against the mounting base 2. When it is necessary to remove the actuating component 1 from the mounting base 2, an external force can be applied to the rotating part 31 to rotate the locking part 32 away from the housing 11. When the external force is removed, the locking part 32 will automatically retract into the mounting groove 21 under the action of the elastic element 33, thereby achieving the unlocked state between the locking part 32 and the housing 11, and completing the rapid removal of the actuating component 1.

[0049] In some embodiments, such as Figures 1 to 5 As shown, the locking part 32 is eccentrically positioned relative to the rotation center of the rotating part 31.

[0050] Thus, by adopting an eccentric design, the extension of the locking part 32 relative to the mounting groove 21 during the rotation of the rotating part 31 can continuously change with the rotation angle, thereby achieving fine adjustment of the clamping degree of the housing 11. This structure allows the operator to lock or release the locking part 32 simply by rotating it to a certain angle, making the operation intuitive and effortless, without the need for additional pressure or positioning, and helping to shorten the surgical operation time.

[0051] The above-mentioned eccentric setting can be understood as the geometric center line of the locking part 32 (i.e., the central axis of the locking part 32 itself) and the rotation axis of the rotating part 31 (i.e., the center line of the rotating part 31 rotating around its own axis) having a predetermined radial offset in space, and the two do not coincide.

[0052] Specifically, the rotating part 31 can be constructed as a shaft structure that can rotate around its own axis, and the locking part 32 is fixedly connected to the distal end or near the distal end of the rotating part 31. The locking part 32 can be an eccentric pin structure, an eccentric cam structure, an eccentric column structure, or other eccentric structures, which are offset radially by a certain distance relative to the rotation axis of the rotating part 31. With the above-mentioned eccentric structure, the operator only needs to apply a rotational action to the rotating part 31 to lock or unlock the locking part 32, which is easier to implement in a narrow surgical field.

[0053] Specifically, the bottom surface of the mounting base 2 has at least an abutment surface near the mounting groove 21. After the locking part 32 extends, it can drive the housing 11 to abut against the abutment surface, so that the housing 11 can be clamped between the locking part 32 and the mounting base 2, thereby ensuring the stable installation of the housing 11.

[0054] In some embodiments, such as Figures 1 to 7As shown, the housing 11 has at least one connecting portion 12, and the locking portion 32 acts on the connecting portion 12 when it extends out of the mounting groove 21, so as to press the housing 11 against the mounting base 2 through the connecting portion 12.

[0055] Thus, by providing a connecting part 12 on the housing 11, the working position of the locking part 32 and the housing 11 can be more clearly defined and stable, so that the locking force applied by the locking part 32 can be directly applied to the connecting part 12.

[0056] The connecting part 12 may have a first surface that fits against the mounting base 2 and a second surface that fits against the locking part 32, so that the locking part 32, the housing 11 and the mounting base 2 fit more tightly, thereby improving the fixation reliability of the active component 1 during the implantation process.

[0057] At least one of the first and second surfaces of the connecting part 12 may be provided with a friction part to improve the installation stability between the locking part 32, the housing 11 and the mounting base 2. It should be noted that the friction provided by the friction part should not be too large, and should at least be able to ensure that rotating the rotating part 31 can make the locking part 32 move away from the housing 11.

[0058] The aforementioned connecting part 12 can be understood as a structural part disposed on the outer wall surface of the housing 11 for forming a mechanical engagement or abutment relationship with the locking part 32 of the limiting component 3. The connecting part 12 can have various implementation forms depending on the overall shape of the housing 11 and the layout of the limiting component 3. For example, it can be an ear plate structure protruding outward from the outer surface of the housing 11, with a through hole or a semi-open slot on the ear plate; it can also be a groove, countersunk hole or stepped surface formed on the outer wall surface of the housing 11; it can also be a flange or flange structure formed at the edge of the housing 11 itself. This application does not make specific limitations on this, as long as the stable working relationship between the connecting part 12 and the locking part 32 can be guaranteed.

[0059] The connecting part 12 is positioned corresponding to the mounting groove 21 and the limiting component 3 on the mounting base 2. When the housing 11 is placed on the mounting base 2, the connecting part 12 is aligned with the opening of the mounting groove 21. When the locking part 32 extends out of the mounting groove 21 under the drive of the rotating part 31, the distal end face or side wall of the locking part 32 directly contacts the force-bearing surface of the connecting part 12 (e.g., the inner wall of the hole or the edge of the ear plate), and applies a force to the connecting part 12 in the direction of the mounting base 2. The connecting part 12 is either an integral extension of the housing 11 or an independent component fixedly connected to the housing 11. The force applied by the locking part 32 is transmitted to the entire housing 11 through the connecting part 12, allowing the housing 11 to be fixed on the mounting base 2. Through the arrangement of the connecting part 12, the clamping force of the locking part 32 is concentrated in a preset force-bearing area, i.e., the area where the connecting part 12 is located. This also helps maintain the structural integrity and positioning repeatability of the housing 11 during multiple disassembly and assembly processes.

[0060] In some embodiments, such as Figures 1 to 5 As shown, the limiting component 3 also includes a stop block 34 sleeved outside the rotating part 31. The stop block 34 is located in the mounting groove 21. One end of the elastic member 33 abuts against the stop block 34, and the other end abuts against the mounting base 2. The rotating part 31 is used to drive the stop block 34 to make linear movement under force, so as to press or release the elastic member 33 through the stop block 34.

[0061] Thus, by setting the stop block 34, the rotating part 31 can move linearly when it rotates, thereby stably compressing or releasing the elastic element 33, avoiding the elastic element 33 from being directly subjected to torsional force and becoming twisted or stuck, making the working stroke of the elastic element 33 smoother, extending the service life of the elastic element 33, and ensuring the smoothness of the extension and retraction of the locking part 32.

[0062] The aforementioned stop block 34 can be an annular or block-shaped component with a predetermined axial thickness and circumferential profile. It has a through hole in its center for the rotating part 31 to pass through. The inner wall of the through hole and the outer peripheral surface of the rotating part 31 can be fitted together by a sliding fit. Alternatively, an external thread can be provided on the outer peripheral surface of the rotating part 31, while an internal thread can be provided on the inner wall of the through hole of the stop block 34, so that the stop block 34 and the rotating part 31 form a threaded transmission fit.

[0063] The aforementioned stop block 34 can be entirely accommodated within the internal space of the mounting groove 21 and can reciprocate linearly along the axial direction of the rotating part 31 within the mounting groove 21. An elastic element 33 (e.g., a helical compression spring) is sleeved on the outside of the rotating part 31, with one end (proximal end) abutting against the stop block 34 and the other end (distal end) abutting against the inner wall surface of the mounting base 2, for example, against the bottom step surface of the mounting groove 21. When the operator rotates the rotating part 31, the rotational motion of the rotating part 31 can be converted into the linear motion of the stop block 34 along the axial direction through a threaded connection. When the stop block 34 moves towards the interior of the mounting base 2, the stop block 34 presses against the elastic element 33, causing the elastic element 33 to be compressed axially, increasing the elastic force; when the stop block 34 moves towards the exterior of the mounting base 2, the stop block 34 releases its pressure on the elastic element 33, the elastic force gradually decreases, and the elastic element 33 gradually lengthens.

[0064] In some embodiments, such as Figures 1 to 4 As shown, the mounting groove 21 extends through the mounting base 2 along the thickness direction of the mounting base 2, the elastic element 33 is completely housed inside the mounting groove 21, and the locking part 32 is entirely located inside the mounting groove 21 when it retracts into the mounting groove 21.

[0065] Thus, the mounting groove 21 is through-hole, and both the elastic element 33 and the locking part 32 are completely contained within the groove in the retracted position. This protects the elastic element 33 and the locking part 32 in the retracted position, preventing accidental contact or snagging between external tissues, surgical instruments, or foreign objects and the elastic element 33 and locking part 32 during the implantation or removal of the active component 1. It also prevents the elastic element 33 from being corroded or contaminated due to its exposed position, ensuring that the limiting component 3 can work normally when needed, extending the service life of the device and improving surgical safety. Furthermore, the above structural design keeps the overall shape of the mounting base 2 flat, without protruding parts, which helps to reduce scratching or interference with surrounding tissues in the implantation environment.

[0066] The aforementioned mounting base 2 is constructed as a plate-shaped or block-shaped substrate with a certain thickness. The mounting groove 21 can be understood as a channel structure that is opened on the mounting base 2 and completely penetrates along the thickness direction of the mounting base 2 (i.e., the vertical direction between the upper and lower surfaces of the mounting base 2). The channel forms openings on the upper and lower surfaces of the mounting base 2, respectively.

[0067] The axial length of the elastic element 33 in both the compressed and natural states is less than the depth dimension of the mounting groove 21 in the thickness direction, and the outer diameter of the elastic element 33 is less than the inner diameter of the mounting groove 21, so that the elastic element 33 as a whole does not exceed the edge of the groove of the mounting groove 21 in both the axial and radial directions, that is, the elastic element 33 is completely contained in the internal space of the mounting groove 21.

[0068] In some other embodiments, such as Figure 7 As shown, the mounting groove 21 extends through the mounting base 2 along the thickness direction of the mounting base 2, and the mounting groove 21 is a groove with an open periphery. The elastic member 33 is exposed in the periphery of the mounting groove 21, and the locking part 32 is entirely located inside the mounting groove 21 when it retracts into the mounting groove 21.

[0069] In some embodiments, the limiting component 3 further includes a knob 35, which is connected to the end of the rotating part 31 away from the locking part 32.

[0070] Thus, the knob 35 provides the operator with a convenient operating point for applying force, making the rotation of the rotating part 31 more effortless and precise, especially suitable for direct operation with fingers in a confined surgical field. The knob 35 can also increase friction and tactile feedback during operation, helping the operator accurately determine whether the locking part 32 has reached the extended or retracted position.

[0071] The aforementioned knob 35 can be understood as being fixedly connected to the proximal end of the rotating part 31, that is, the end of the rotating part 31 away from the locking part 32. The knob 35 can be formed independently of the rotating part 31 and then fixed to the end of the rotating part 31 by welding, bonding, threaded connection, or pin fixing, or it can be integrally formed with the rotating part 31 as a single component. This application does not impose specific limitations on this, as long as it ensures that the knob 35 is not easily detached. The knob 35 can be cylindrical, petal-shaped, star-shaped, polygonal prism, or disc-shaped, etc., with its outer contour being larger in the radial direction than the outer diameter of the rotating part 31 itself, thereby providing a larger lever arm for the operator's fingers.

[0072] The outer peripheral surface of the aforementioned knob 35 is usually provided with an anti-slip structure, such as knurling, texture, grooves or ridges, to increase the coefficient of friction between the finger and the knob 35 and prevent the finger from slipping in a wet or fluid-contaminated operating environment.

[0073] In some embodiments, the connecting part 12 is a hole structure, and the connecting part 12, the limiting component 3, and the mounting groove 21 are provided in a one-to-one correspondence.

[0074] Thus, by setting the connecting part 12 to have a hole structure that corresponds one-to-one with the limiting component 3 and the mounting groove 21, the locking part 32 can directly penetrate or snap into the hole structure when it extends, forming a stable locking relationship. The connection is secure and the alignment is accurate. The above-mentioned one-to-one correspondence avoids mutual interference between multiple limiting components 3. Each locking part 32 independently controls its corresponding connecting part 12, which facilitates individual disassembly or adjustment, improving the adaptability and operational flexibility of the device.

[0075] The above-mentioned hole structure can be understood as the connecting part 12 being constructed as a hole with a certain inner diameter and depth opened in the connecting wall or extension lug of the housing 11. The hole can be a through hole that extends along the thickness direction, or a blind hole or countersunk hole that does not extend.

[0076] The connecting parts 12, limiting components 3, and mounting slots 21 are all one-to-one in number and position. Specifically, the mounting base 2 has several mounting slots 21, equal in number to the limiting components 3, and each mounting slot 21 houses one limiting component 3. The housing 11 has connecting parts 12, equal in number and position to the mounting slots 21. Each limiting component 3 independently corresponds to one connecting part 12 for locking or unlocking operations. The mechanical actions of the multiple limiting components 3 are independent and do not interfere with each other. The operator can independently operate each knob 35 as needed to extend or retract the corresponding locking part 32, thereby achieving multi-point locking or selective unlocking between the housing 11 and the mounting base 2.

[0077] This application provides an implantable neural signaling system. For example... Figures 1 to 7 As shown, the implantable neural signal system includes the implantable neural signal device of any of the above embodiments, and also includes a flexible electrode 4 electrically connected to the stimulation module and / or acquisition module.

[0078] This application utilizes the mounting groove 21 on the mounting base 2 and the rotating part 31 and locking part 32 of the limiting component 3. When the locking part 32 extends out of the mounting groove 21, it drives the housing 11 to abut against the mounting base 2, thereby limiting the housing 11 between the locking part 32 and the mounting base 2. Thus, by rotating the part 31 to drive the locking part 32 to perform telescopic movement, the housing 11 can be quickly installed and removed. That is, the locking part 32 can be extended to quickly install the functional component 1, and the locking part 32 can be retracted to quickly remove the functional component 1. The housing 11 can be quickly separated from the mounting base 2 without the use of other tools, which meets the need for the functional component 1 to be quickly removed from the mounting base 2 after it is implanted. This effectively simplifies the surgical procedure, ensures the implantation positioning accuracy of the functional component 1, reduces the risk of disturbing the target area nerve tissue during surgery, and helps to reduce postoperative complications.

[0079] The aforementioned flexible electrode 4 can be made of a flexible material, which gives it good flexibility and biocompatibility, allowing it to better adapt to the shape and movement of nerve tissue, thereby reducing mechanical pressure and damage to surrounding tissues. Specifically, the aforementioned flexible electrode 4 can be constructed as a sheet-like structure.

[0080] Specifically, the flexible electrode 4 may include at least a proximal end and a distal end connected together, and the proximal end of the flexible electrode 4 may be electrically connected to the stimulation module and / or acquisition module of the implantable neural signal device.

[0081] The flexible electrode 4 includes at least a proximal end and a distal end that are electrically connected. The proximal end of the flexible electrode 4 is electrically connected to the action component 1. The distal end of the flexible electrode 4 includes at least a first segment and a second segment, with the first segment located distal to the second segment. The implantable neural signal system may also include an electrode fixation component 6, which has at least one application surface for applying the distal second segment. The application surface has a liquid absorption region, which is disposed at at least one of the following locations of the flexible electrode 4: the distal end of the second segment, the proximal end of the second segment, and the middle portion of the second segment.

[0082] By providing a caulking surface for caulking the distal end on the electrode fixation assembly 6, the caulking surface having a liquid adsorption area, the liquid adsorption area being provided at least at one of the following positions of the flexible electrode 4: the distal end of the second segment, the proximal end of the second segment, and the middle part of the second segment, it is possible to utilize the solid-liquid interaction force between the liquid adsorbed on the liquid adsorption area and the flexible electrode 4 at the moment of separation between the flexible electrode 4 and the caulking surface of the electrode fixation assembly 6, thereby avoiding sudden deformation and movement of the flexible electrode 4, effectively reducing the risk of the flexible electrode 4 falling off the auxiliary implantation needle that carries it into the target tissue, and thus significantly improving the operational stability and success rate of the implantation surgery.

[0083] The aforementioned electrode fixation component 6 can be understood as a temporary mounting structure, which is a surgical auxiliary carrier. It only temporarily supports the flexible electrode 4 during the implantation operation and is removed along with the surgical instruments after the implantation is completed.

[0084] The aforementioned first segment can be understood as the part that receives force causing the flexible electrode 4 to move in the implantation direction. Specifically, the first segment is the region at the distal end of the flexible electrode 4, which directly or indirectly receives the propulsive force from the auxiliary implantation needle. When the auxiliary implantation needle advances along the implantation direction (i.e., towards the interior of the target tissue), this propulsive force first acts on the first segment, and then is transmitted from the first segment to the entire flexible electrode 4, thereby driving the entire flexible electrode 4 to move along the implantation direction and enter the target tissue.

[0085] Of the three portions of the second segment, at least the distal end is attached to the paving surface. As the farthest end of the flexible electrode 4, the force state of the distal end at the moment of separation has the greatest impact on the overall risk of detachment. By ensuring that the distal end is at least supported by the paving surface and that the liquid adsorption area is set corresponding to the distal end of the second segment, the solid-liquid interaction between the liquid in the liquid adsorption area and the flexible electrode 4 can be used to avoid sudden deformation and movement of the flexible electrode 4, thereby effectively reducing the risk of the flexible electrode 4 detaching from the auxiliary implantation needle that carries it to the target tissue.

[0086] The electrode fixation assembly 6 includes a liquid reservoir, which is correspondingly positioned to the surface of the second section of the electrode padding. The liquid reservoir supplies liquid to the surface of the padding to form a liquid adsorption area. Thus, by providing a liquid reservoir corresponding to the surface of the padding, a continuous and stable supply and replenishment of liquid can be ensured on the surface, guaranteeing that the corresponding liquid adsorption area always retains sufficient liquid during the procedure and ensuring the reliability of the solid-liquid interaction between the liquid and the flexible electrode 4.

[0087] The implantable neural signal system also includes a support plate 61, on which at least a portion of the second segment of the flexible electrode 4 is fixed. The second segment is configured to overcome the fixing force with the support plate 61 and detach from it when subjected to a tensile force greater than or equal to a preset threshold. Thus, by providing the support plate 61, a stable, flat, and deformation-free attachment base can be provided for the second segment of the flexible electrode 4 before implantation, preventing the flexible electrode 4 from curling, wrinkling, or shifting during placement due to its flexibility. This ensures that the second segment of the electrode maintains its preset shape and spatial position accuracy before implantation, providing a reliable structural guarantee for the precise action of the subsequent auxiliary implantation needle.

[0088] In some embodiments, such as Figure 8 As shown, the implantable neural signal system also includes a moving mechanism 5, which includes a connecting rod 51. A connector 52 is movably disposed on the connecting rod 51. The mounting base 2 is detachably connected to the connecting rod 51 via the connector 52. The connector 52 has an anti-detachment part 53 to prevent the connector 52 from detaching from the connecting rod 51.

[0089] Thus, the moving mechanism 5 allows the mounting base 2 to move along the connecting rod 51 in a predetermined direction, facilitating the precise delivery of the active component 1 from outside the body to the target position inside the body. The anti-slip part 53 on the connector 52 effectively prevents the connector 52 from accidentally slipping off the connecting rod 51 during movement, improving the safety of the implantation process.

[0090] The aforementioned moving mechanism 5 can be understood as an auxiliary device for spatially adjusting the mounting base 2 and the functional components 1 fixed thereon during the implantation surgery, such as a stereotactic instrument, a robotic arm, or other mechanisms.

[0091] The aforementioned connecting rod 51 can be made of biocompatible metallic materials (such as titanium alloy or stainless steel) or high-strength medical polymer materials, and its outer surface is smoothed to reduce frictional damage to tissues when entering the body channel.

[0092] The aforementioned anti-detachment part 53 can be a limiting structure provided on the rod part of the connector 52. Specifically, it can be a radially inward protruding limiting post provided on the inner wall of the sliding channel on the connector 52. It can prevent the connector 52 from moving in the direction of detaching from the connecting rod 51, and prevent the connector 52 from detaching from the distal end of the connecting rod 51, thereby improving the safety of the implantation process.

[0093] Furthermore, although exemplary embodiments have been described herein, their scope includes any and all embodiments based on this application that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, and such examples will be interpreted as non-exclusive.

[0094] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments can be used by those skilled in the art when reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the application. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the application may be less than all the features of a particular disclosed embodiment. Thus, the claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated as being able to be combined with each other in various combinations or arrangements. The scope of this application should be determined by reference to the appended claims and the full scope of their equivalents.

[0095] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An implantable neural signaling device, characterized in that, include: The active component includes a housing and a stimulation module and / or acquisition module disposed within the housing, wherein the stimulation module is used to apply electrical stimulation to the target tissue, and the acquisition module is used to acquire the potential signal of the target tissue; The mounting base has at least one mounting slot. A limiting component is correspondingly disposed on the mounting groove of the mounting base. The limiting component includes a rotating part and a locking part connected to each other. The rotating part is used to rotatably drive the locking part to retract or extend out of the mounting groove. When the locking part extends out of the mounting groove, it drives the housing to abut against the mounting base, so as to limit the housing between the locking part and the mounting base.

2. The implantable neural signal device according to claim 1, characterized in that, The limiting component also includes an elastic element, which is sleeved on the rotating part and is used to apply a force to the locking part to drive the locking part back into the mounting groove.

3. The implantable neural signal device according to claim 1 or 2, characterized in that, The locking part is eccentrically positioned relative to the rotation center of the rotating part.

4. The implantable neural signal device according to claim 1, characterized in that, The housing has at least one connecting portion, and the locking portion acts on the connecting portion when it extends out of the mounting groove to press the housing against the mounting base through the connecting portion.

5. The implantable neural signal device according to claim 2, characterized in that, The limiting component also includes a stop block sleeved outside the rotating part. The stop block is located in the mounting groove. One end of the elastic member abuts against the stop block, and the other end abuts against the mounting base. The rotating part is used to drive the stop block to make linear movement under force, so as to press or release the elastic member through the stop block.

6. The implantable neural signal device according to claim 2, characterized in that, The mounting groove extends through the mounting base along the thickness direction, the elastic element is completely housed inside the mounting groove, and the locking part is entirely located inside the mounting groove when it retracts into the mounting groove.

7. The implantable neural signal device according to claim 1 or 2, characterized in that, The limiting component also includes a knob, which is connected to the end of the rotating part away from the locking part.

8. The implantable neural signal device according to claim 4, characterized in that, The connecting part has a hole structure, and the connecting part, the limiting component, and the mounting groove are provided in a one-to-one correspondence.

9. An implantable neural signaling system, characterized in that, The implantable neural signaling device, as described in any one of claims 1 to 8, further includes a flexible electrode electrically connected to the stimulation module and / or acquisition module.

10. The implantable neural signaling system according to claim 9, characterized in that, The implantable neural signal system further includes a moving mechanism, which includes a connecting rod with a connector movably disposed on the connecting rod. The mounting base is detachably connected to the connecting rod via the connector, and the connector has an anti-detachment part to prevent the connector from detaching from the connecting rod.

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