Auxiliary implant device and auxiliary implant system having the same

Abstract

The application discloses an auxiliary implantation device and an auxiliary implantation system with the same, and the auxiliary implantation device comprises a support module, a control module and a push rod, a hand wheel of the support module is sleeved on the outer circumferential side of an implantation frame, the control module comprises an implantation wheel and a fixing piece, the fixing piece is located between the hand wheel and the implantation wheel, the fixing piece is fixedly connected with the implantation frame, the implantation wheel, the fixing piece and the implantation frame are arranged on the push rod along the axial direction of the push rod, an outer side wall of the implantation wheel is provided with a scale, the difference between two adjacent values of the scale is equal to the pitch of the implantation wheel, an outer side wall of the fixing piece is provided with a protractor, and the protractor is used for equally dividing the circumference of the fixing piece into N equal parts, wherein N is an integer. According to the auxiliary implantation device, the precision of the implantation depth of the flexible electrode is ensured through the cooperation of the hand wheel, the implantation wheel and the fixing piece, the risk of the flexible electrode implantation operation is greatly reduced, and the implantation speed, stability, operation efficiency and patient experience of the flexible electrode are improved.

Description

Technical Field

[0001] This invention relates to the field of assistive implantation devices, and more particularly to an assistive implantation device and an assistive implantation system having the same. Background Technology

[0002] In their pursuit of unlocking their potential and exploring their own mysteries, humanity has devoted vast resources to understanding how the brain functions. Today, research into brain-computer interfaces (BCIs), as a direct method for investigating the human brain's operation, has seen rapid advancements. Flexible electrodes, serving as a bridge connecting the human brain and computers, require safe, stable, and reliable implantation tools to assist in the implantation process.

[0003] In related technologies, because flexible electrodes are too soft, they require an auxiliary needle for implantation during the implantation process. However, the implantation depth of the flexible electrode is not precise enough during the above-mentioned implantation process, which increases the uncertainty of the flexible electrode implantation surgery and thus increases the risk of the surgery. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide an auxiliary implantation device that can reduce the uncertainty in the implantation process of flexible electrodes, greatly reduce the risk of flexible electrode implantation surgery, and improve the implantation speed, stability, surgical efficiency, and patient experience of flexible electrodes.

[0005] Another object of the present invention is to provide an assisted implantation system including the above-described assisted implantation device.

[0006] An auxiliary implantation device according to a first aspect of the present invention includes: a support module, the support module including a handwheel and an implantation frame, the handwheel being sleeved on the outer periphery of the implantation frame; a control module, the control module including an implantation wheel and a fixing member, the fixing member being located between the handwheel and the implantation wheel, and the fixing member being fixedly connected to the implantation frame; a push rod, the implantation wheel, the fixing member and the implantation frame passing through the push rod along its axial direction, and one end of the push rod being adapted to be connected to a flexible electrode; wherein, the handwheel and the implantation frame are movable along the axial direction of the push rod, the implantation wheel and the fixing member are threadedly connected, the outer side wall of the implantation wheel is provided with a scale, the difference between two adjacent values ​​of the scale is equal to the pitch of the implantation wheel, and the outer side wall of the fixing member is provided with a dividing plate, the dividing plate being used to divide the circumference of the fixing member into N equal parts, where N is an integer.

[0007] According to an embodiment of the present invention, the auxiliary implantation device sequentially mounts an implantation wheel, a fixation member, and an implantation frame onto a push rod. A handwheel is fitted onto the implantation frame, and the handwheel and implantation frame are movable along the axial direction of the push rod. The implantation wheel and the fixation member are threaded together, and the outer wall of the implantation wheel is provided with a scale, while the outer wall of the fixation member is provided with a graduated dial. Therefore, during the implantation of the flexible electrode, the coordination of the handwheel, implantation wheel, and fixation member allows the flexible electrode to be precisely implanted to a predetermined depth, ensuring the accuracy of the implantation depth. This reduces the uncertainty during the implantation process, significantly lowers the risk of flexible electrode implantation surgery, and improves the implantation speed, stability, surgical efficiency, and patient experience.

[0008] According to some embodiments of the present invention, the implanted wheel includes a rotating part and a connecting part connected to each other, the connecting part being located between the rotating part and the fixing member, and the scale being provided on the outer side wall of the connecting part.

[0009] According to some embodiments of the present invention, the fastener includes a body and a boss, the body has a receiving cavity, the outer side wall of the body is provided with the indexing plate, the boss is disposed in the receiving cavity, and a portion of the connecting part is fitted in the receiving cavity and threadedly connected to the boss.

[0010] According to some embodiments of the present invention, a plurality of rolling elements are provided between the connecting portion and the body, and the plurality of rolling elements are spaced apart circumferentially along the body; and / or the body is fixedly connected to the implantation frame by a plurality of fixing set screws.

[0011] According to some embodiments of the present invention, the auxiliary implantation device further includes: an extension arm, one end of which is fixedly connected to the implantation frame, the other end of which extends axially along the push rod, and the extension arm is located on one radial side of the push rod; and a first pressure block, one end of which is fixedly connected to the other end of the extension arm, the other end of which extends axially along the push rod.

[0012] According to some embodiments of the present invention, a first through hole is formed at the other end of the first pressure block, and the first through hole is opposite to one end of the push rod in the axial direction of the push rod.

[0013] According to some embodiments of the present invention, the auxiliary implantation device further includes: a second pressure block, the second pressure block being disposed on the side of the implantation wheel away from the fixation member, the second pressure block being connected to the implantation wheel via a limiting pin, and the second pressure block being inserted through the push rod; and an anti-rotation pin, the two ends of the anti-rotation pin being fixedly connected to the second pressure block and the fixation member, respectively.

[0014] According to some embodiments of the present invention, the second pressure block includes: a first limiting portion having a second through hole formed thereon, and a portion of the push rod being located within the second through hole; a second limiting portion being disposed on the side of the first limiting portion away from the implantation wheel, and the second limiting portion being located on the radial side of the second through hole; and a fastening portion being rotatably connected to the second limiting portion, the fastening portion being located on the radial side of the second through hole, the fastening portion being connected to the second limiting portion by a fastener, and a portion of the push rod being clamped between the fastener and the second limiting portion.

[0015] According to some embodiments of the present invention, the stent module further includes: a protective member, the protective member being sleeved on the outer periphery of the implantation frame, the protective member being rotatably connected to the handwheel and located on the side of the handwheel away from the fixing member.

[0016] An assisted implantation system according to a second aspect of the present invention includes: an assisted implantation device, wherein the assisted implantation device is an assisted implantation device according to the first aspect of the present invention described above; and a flexible electrode connected to a push rod of the assisted implantation device.

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

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

[0019] Figure 1 This is a schematic diagram of an assisted implantation device according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 An exploded view of the stent module of the assistive implantation device shown;

[0021] Figure 3 yes Figure 1 An exploded view of the control module of the assistive implantation device shown.

[0022] Figure 4 yes Figure 1 A schematic diagram of the second pressure block, anti-rotation pin, and fasteners of the auxiliary implantation device shown;

[0023] Figure 5 yes Figure 1 A schematic diagram of the push rod, extension arm, and first pressure block of the auxiliary implantation device shown;

[0024] Figure 6 yes Figure 1 A schematic diagram of the first pressure block of the assistive implantation device shown.

[0025] Figure label:

[0026] 100: Assistive implantation device;

[0027] 10: Support module; 101: Handwheel; 102: Implantation frame; 103: Protective component; 104: Shaft pin; 105: Pin block;

[0028] 20: Control module; 201: Implantation wheel; 211: Scale; 212: Rotating part; 213: Connecting part; 202: Fixing component; 221: Indexing plate; 222: Body; 223: Receiving cavity; 224: Boss; 203: Rolling part; 204: Fixing screw; 30: Push rod; 40: Extension arm; 50: First pressure block; 501: First through hole; 60: Second pressure block; 601: First limiting part; 611: Second through hole; 602: Second limiting part; 603: Fastening part; 604: Fastener; 70: Anti-rotation pin; 80: Limiting pin. Detailed Implementation

[0029] The following is for reference. Figures 1-6 An auxiliary implantation device 100 according to an embodiment of the first aspect of the present invention will be described. The description will take the application of the auxiliary implantation device 100 in a flexible electrode implantation surgery as an example.

[0030] like Figures 1-6 As shown, the assisted implantation device 100 according to a first aspect embodiment of the present invention includes: a stent module 10, a control module 20, and a push rod 30.

[0031] Specifically, the stent module 10 includes a handwheel 101 and an implantation frame 102. The handwheel 101 is sleeved on the outer periphery of the implantation frame 102. The control module 20 includes an implantation wheel 201 and a fixing member 202. The fixing member 202 is located between the handwheel 101 and the implantation wheel 201, and is fixedly connected to the implantation frame 102. Along the axial direction of the push rod 30, the implantation wheel 201, the fixing member 202, and the implantation frame 102 pass through the push rod 30, and one end of the push rod 30 is adapted to be connected to a flexible electrode.

[0032] The handwheel 101 and the implantation frame 102 are movable along the axial direction of the push rod 30. The implantation wheel 201 and the fixing member 202 are threadedly connected. The outer wall of the implantation wheel 201 is provided with a scale 211. The difference between two adjacent values ​​of the scale 211 is equal to the pitch of the implantation wheel 201. The outer wall of the fixing member 202 is provided with an indexing plate 221. The indexing plate 221 is used to divide the circumference of the fixing member 202 into N equal parts, where N is an integer.

[0033] For example, in Figures 1-6In the example, the implantation frame 102 is approximately T-shaped, with external threads on its outer sidewall and internal threads on its inner sidewall. The internal and external threads engage, allowing the handwheel 101 and implantation frame 102 to rotate relative to each other, thus enabling their movement along the axial direction of the push rod 30. Along the axial direction of the push rod 30, the implantation wheel 201, the fixing member 202, and the implantation frame 102 are sequentially mounted on the push rod 30 from top to bottom. The end of the push rod 30 furthest from the implantation wheel 201 is suitable for connection to a flexible electrode.

[0034] Specifically, the outer wall of the implant wheel 201 is engraved with a scale 211 with a precision of 1 mm to display the coarse adjustment depth of the displacement. The outer wall of the fixation member 202 is engraved with an indexing plate 221 with a precision of 0.1 mm, meaning that each rotation of the indexing plate 221 corresponds to a displacement of 0.1 mm. For example, if the thread pitch on the implant wheel 201 is 1.5 mm, then for each rotation of the implant wheel 201, the implant wheel 201 drives the push rod 30 to move 1.5 mm along the axial direction of the push rod 30. To ensure the precision of the indexing plate 221 is 0.1 mm, the circumference of the fixation member 202 can be divided into 15 equal parts. If the indexing is further refined, the circumference of the fixation member 202 can be divided into 150 equal parts, thereby improving the precision of the indexing plate 221 to 0.01 mm. That is, the "implantation precision" of the indexing plate 221 is equal to the "thread pitch" divided by the "circumferential indexing number".

[0035] During the implantation of the flexible electrode, the flexible electrode is first connected to the front end of the push rod 30. Then, the implantation wheel 201, the fixation member 202, and the implantation frame 102 are sequentially threaded onto the push rod 30, while the handwheel 101 is fitted onto the implantation frame 102. Next, rotating the handwheel 101 moves the implantation frame 102 along the axial direction of the push rod 30. Since the implantation frame 102 is fixedly connected to the fixation member 202, it can drive the implantation wheel 201, the fixation member 202, and the push rod 30 to move along the axial direction of the push rod 30 until the tip of the flexible electrode is positioned on the brain surface, completing the pre-implantation preparation. In other words, by rotating the handwheel 101, a large-scale movement of the flexible electrode can be achieved, allowing it to be quickly moved to the brain surface.

[0036] Next, rotate the implantation wheel 201 to move the push rod 30 towards the brain surface, allowing the flexible electrode to be initially implanted. Then, rotate the fixing component 202 to move both the implantation wheel 201 and the push rod 30 towards the brain surface, thus implanting the flexible electrode to a precise depth. For example, with a thread pitch of 1.5mm, if the implantation depth of the flexible electrode is 5mm, the implantation wheel 201 can be rotated 3 times, and then the indexing plate 221 can be rotated 5 divisions to complete the implantation (the formula for calculating the implantation depth of the flexible electrode is: 3×1.5+0.1×5=5mm). After implantation, separate the flexible electrode from the push rod 30. At this point, rotating the handwheel 101 in the opposite direction will move the auxiliary implantation device 100 away from the brain surface.

[0037] Optionally, a plurality of grooves are formed on the outer peripheral side of the handwheel 101. These grooves are spaced apart circumferentially along the handwheel 101, and each groove is formed by a portion of the outer peripheral wall of the handwheel 101 recessed towards the center of the handwheel 101. This increases the contact area between the handwheel 101 and the surgeon, facilitating the surgeon's rotation of the handwheel 101. In the description of this invention, "a plurality of" means two or more.

[0038] Therefore, during the implantation of the flexible electrode, rotating the handwheel 101 allows the auxiliary implantation device 100 to move significantly, facilitating the rapid arrival of the flexible electrode at the brain surface and enabling its positioning. Then, rotating the implantation wheel 201 pushes the push rod 30 to implant the flexible electrode to a certain depth. Finally, rotating the fixation member 202 pushes the push rod 30 to fine-tune the flexible electrode to a precise depth. In other words, rotating the implantation wheel 201 achieves initial implantation of the flexible electrode, while rotating the fixation member 202 achieves precise implantation.

[0039] According to an embodiment of the present invention, the auxiliary implantation device 100 comprises an implantation wheel 201, a fixing member 202, and an implantation frame 102 sequentially mounted on a push rod 30. A handwheel 101 is fitted onto the implantation frame 102, and the handwheel 101 and the implantation frame 102 are movable along the axial direction of the push rod 30. The implantation wheel 201 and the fixing member 202 are threadedly connected, and the outer wall of the implantation wheel 201 is provided with a scale 211, while the outer wall of the fixing member 202 is provided with a graduated plate 221. Therefore, during the implantation of the flexible electrode, the handwheel 101, the implantation wheel 201, and the fixing member 202 work together to precisely implant the flexible electrode to a predetermined depth, ensuring the accuracy of the implantation depth. This reduces the uncertainty during the implantation process, significantly reduces the risk of flexible electrode implantation surgery, and improves the implantation speed, stability, surgical efficiency, and patient experience.

[0040] According to some embodiments of the present invention, the implant wheel 201 includes a rotating part 212 and a connecting part 213 connected to each other. The connecting part 213 is located between the rotating part 212 and the fixing member 202, and a scale 211 is provided on the outer side wall of the connecting part 213. Figure 3 As shown, the outer diameter of the connecting part 213 is smaller than the outer diameter of the rotating part 212. Multiple grooves are formed on the outer periphery of the rotating part 212, spaced apart circumferentially. Each groove is formed by a portion of the outer peripheral wall of the rotating part 212 recessed towards its center. This increases the contact area between the implanted wheel 201 and the surgeon, facilitating rotation of the rotating part 212. Therefore, by providing the rotating part 212, on the one hand, it facilitates rotation of the implanted wheel 201 by the surgeon; on the other hand, it avoids contact between the surgeon and the scale 211, thereby reducing wear on the scale 211 and extending the service life of the implanted wheel 201.

[0041] Furthermore, the fastener 202 includes a body 222 and a boss 224. The body 222 has a receiving cavity 223, and an indexing plate 221 is provided on the outer side wall of the body 222. The boss 224 is disposed within the receiving cavity 223, and a portion of the connecting part 213 is fitted within the receiving cavity 223 and threadedly connected to the boss 224. (Refer to...) Figure 3 The main body 222 is open on the side facing the implantation wheel 201. The end of the connecting part 213 away from the rotating part 212 can extend into the receiving cavity 223 from the open side of the main body 222. The outer wall of the boss 224 is formed with an external thread, and the inner wall of the connecting part 213 is formed with an internal thread that mates with the external thread. Through the engagement of the internal and external threads, the implantation wheel 201 and the fixing member 202 can rotate relative to each other. With this configuration, when the implantation wheel 201 is rotated, the fixing member 202 rotates relative to the implantation wheel 201. At the same time, the implantation wheel 201 moves along the axial direction via the push rod 30, causing the push rod 30 to drive the fixing member 202 to move along the axial direction of the push rod 30, thereby realizing the implantation of the flexible electrode.

[0042] Optionally, the end face of one end of the adjacent connecting portion 213 of the boss 224 protrudes beyond the end face of one end of the adjacent connecting portion 213 of the body 222, increasing the length of the boss 224, facilitating the machining of threads on the boss 224, and increasing the length of the threads, thereby increasing the displacement of the implantation wheel 201, and thus more accurately controlling the implantation depth of the flexible electrode.

[0043] In some optional embodiments, a plurality of rolling elements 203 are provided between the connecting portion 213 and the body 222, and the plurality of rolling elements 203 are spaced apart circumferentially along the body 222. For example, in Figure 3In the example, there are four rolling elements 203, which are evenly spaced along the circumference of the body 222. Each rolling element 203 is connected at both ends to the connecting part 213 and the body 222, respectively. When the implantation wheel 201 rotates, the rolling elements 203 also rotate relative to it. The fixing member 202, in cooperation with the rolling elements 203, can limit the movement of the implantation wheel 201, preventing it from exceeding its stroke during flexible electrode implantation. Optionally, the rolling element 203 can be a ball screw, but it is not limited to this.

[0044] And / or, the body 222 is fixedly connected to the implantation frame 102 by a plurality of fixing set screws 204. For example, in Figure 3 In the example, there are four fixing screws 204. The four fixing screws 204 are evenly spaced along the circumference of the body 222. One end of each fixing screw 204 passes through the body 222 and abuts against the implant frame 102 to achieve a fixed connection between the fixing member 202 and the implant frame 102, preventing the fixing member 202 and the implant frame 102 from rotating relative to each other, so as to ensure that the fixing member 202 and the implant frame 102 can move along the axial direction of the push rod 30.

[0045] Figure 3 The illustration shows four rolling elements 203 and four fixed top screws for illustrative purposes. However, those skilled in the art, after reading the technical solution of this application, will obviously understand that the solution can be applied to other numbers of rolling elements 203 and fixed top screws 204, which would also fall within the protection scope of this invention.

[0046] According to some embodiments of the present invention, the assisted implantation device 100 further includes an extension arm 40 and a first pressure block 50, one end of the extension arm 40 being fixedly connected to the implantation frame 102, and the other end of the extension arm 40 extending axially along the push rod 30, with the extension arm 40 located on one radial side of the push rod 30. Figure 1 and Figure 5 As shown, the extension arm 40 is roughly elongated in shape, extending along the axial direction of the push rod 30 in a direction away from the implant frame 102. One end of the extension arm 40 is connected to the end of the implant frame 102 away from the handwheel 101 by a fixing bolt, allowing the extension arm 40 to move along the axial direction of the push rod 30 with the implant frame 102. The axial centerline of the push rod 30 coincides with the axial centerline of the implant frame 102, and the extension arm 40 is arranged approximately parallel to the push rod 30.

[0047] One end of the first pressure block 50 is fixedly connected to the other end of the extension arm 40, and the other end of the first pressure block 50 extends axially along the push rod 30. Figure 6As shown, the first pressure block 50 is roughly Z-shaped and is mounted to the end of the extension arm 40 away from the implantation frame 102 by fixing bolts, so that the implantation frame 102 can drive the extension arm 40 and the first pressure block 50 to move along the axial direction of the push rod 30. During the implantation of the flexible electrode, by rotating the handwheel 101, the push rod 30, the extension arm 40 and the first pressure block 50 are moved toward the brain surface until the first pressure block 50 is pressed firmly on the brain surface, thereby achieving the brain surface positioning of the flexible electrode.

[0048] Furthermore, because the brain remains in a normal working state during the implantation of the flexible electrode, exhibiting periodic pulsations, the vibration amplitude on the brain surface can reach 3mm-4mm in severe cases, leading to inaccurate implantation depth. However, the first pressure block 50 acts as a shock-absorbing support mechanism on the dura mater of the brain surface. Its function is to conform to the position of the brain surface and limit the periodic pulsations of the brain surface through compression. Thus, through "physical compression," the pulsation of brain tissue during the operation is reduced, and the instability of the surgical area is decreased, thereby improving the implantation precision and accuracy of the flexible electrode.

[0049] Furthermore, a first through hole 501 is formed at the other end of the first pressure block 50, and the first through hole 501 is opposite to the aforementioned end of the push rod 30 in the axial direction. (Refer to...) Figure 6 The first pressure block 50 has a first through hole 501 at the end away from the extension arm 40. The shape of the first through hole 501 is approximately U-shaped or approximately O-shaped. The shape of the first through hole 501 is not limited here. It is sufficient to ensure that the axial center line of the first through hole 501 coincides with the axial center line of the push rod 30.

[0050] During the implantation of the flexible electrode, the flexible electrode can be connected to the push rod 30 via a bolt at the front end of the push rod 30. The front end of the implantation needle on the flexible electrode is flush with the end of the first pressure block 50 away from the extension arm 40, that is, the end of the implantation needle passes through the first through hole 501. Thus, when the handwheel 101 is turned and the first pressure block 50 is pressed against the brain surface, the implantation needle on the flexible electrode can be prevented from penetrating into the brain surface and affecting the implantation depth of the flexible electrode.

[0051] Optionally, the first pressing block 50 may be made of a biocompatible metal material such as stainless steel, pure titanium, or titanium alloy. Alternatively, the first pressing block 50 may be made of a single metal material; or, the outer surface of the first pressing block 50 may be coated with a high-analytical material (e.g., silica gel, Teflon, or polymer coating).

[0052] According to some embodiments of the present invention, the assisted implantation device 100 further includes a second pressure block 60 and an anti-rotation pin 70. The second pressure block 60 is disposed on the side of the implantation wheel 201 away from the fixing member 202. The second pressure block 60 is connected to the implantation wheel 201 via a limiting pin 80, and the second pressure block 60 passes through the push rod 30. The two ends of the anti-rotation pin 70 are fixedly connected to the second pressure block 60 and the fixing member 202, respectively. Figure 1 and Figure 4 As shown, the second pressure block 60 can be mounted on the implantation wheel 201 via two limiting pins 80. The second pressure block 60 has a mating groove extending circumferentially. During installation, one end of the second pressure block 60 with the mating groove extends into the implantation wheel 201. One end of each limiting pin 80 enters the implantation wheel 201 from one side and engages with the mating groove, then extends from the other side of the implantation wheel 201. The two limiting pins 80 are located on opposite radial sides of the second pressure block 60 to clamp it. The second pressure block 60 and the implantation wheel 201 can rotate relative to each other, preventing relative displacement. One end of the second pressure block 60 adjacent to the implantation wheel 201 is fixedly connected to the fixing member 202 via two anti-rotation pins 70.

[0053] With this configuration, during the implantation of the flexible electrode, the second pressure block 60 can maintain vertical movement with the fixation member 202 without relative rotation. At the same time, the second pressure block 60 can connect the push rod 30 to the implantation wheel 201. When the implantation wheel 201 is rotated, it moves along the axial direction of the push rod 30. At this time, the second pressure block 60 can move along the axial direction of the push rod 30 together with the push rod 30 and the implantation frame 102. Similarly, when the fixation member 202 is rotated, the second pressure block 60 can also move along the axial direction of the push rod 30 together with the push rod 30 and the implantation frame 102, ensuring that the flexible electrode at the end of the push rod 30 can be accurately implanted into the brain surface.

[0054] Furthermore, the second pressure block 60 includes a first limiting part 601, a second limiting part 602, and a fastening part 603. A second through hole 611 is formed on the first limiting part 601, and a portion of the push rod 30 is located in the second through hole 611. The second limiting part 602 is located on the side of the first limiting part 601 away from the implantation wheel 201, and the second limiting part 602 is located on the radial side of the second through hole 611. The fastening part 603 is rotatably connected to the second limiting part 602, and the fastening part 603 is located on the other radial side of the second through hole 611. The fastening part 603 is connected to the second limiting part 602 by a fastener 604, and a portion of the push rod 30 is clamped between the fastening part 603 and the second limiting part 602.

[0055] Reference Figure 4The first limiting part 601 is cylindrical in shape, and a mating groove is formed at one end of the first limiting part 601 adjacent to the implantation wheel 201. The inner diameter of the second through hole 611 is adapted to the outer diameter of the push rod 30, and part of the push rod 30 passes through the second through hole 611. The second limiting part 602 and the fastening part 603 are generally arc-shaped, and both the second limiting part 602 and the fastening part 603 are located at the end of the first limiting part 601 away from the implantation wheel 201. The second limiting part 602 and the fastening part 603 are respectively located on both sides of the radial direction of the second through hole 611.

[0056] The second limiting part 602 and the fastening part 603 each have U-shaped grooves formed on their opposing sidewalls. One end of the second limiting part 602 and the fastening part 603 are rotatably connected by a pivot. During installation, the fastening part 603 is rotated away from the second limiting part 602. Then, the implantation frame 102, the fixing member 202, the implantation wheel 201, and the second pressure block 60 are sequentially inserted onto the push rod 30. At this time, part of the push rod 30 is located in the U-shaped groove of the second limiting part 602. Then, the fastening part 603 is rotated towards the second limiting part 602 until part of the push rod 30 fits into the U-shaped groove of the fastening part 603. Finally, the fastening part 603 is connected to the second limiting part 602 by the fastener 604, thus achieving a fixed connection between the push rod 30 and the second pressure block 60.

[0057] Therefore, by making the second pressure block 60 include a first limiting part 601, a second limiting part 602 and a fastening part 603, and the second limiting part 602 and the fastening part 603 are rotatably connected, the second limiting part 602 and the fastening part 603 form a "lever" structure. Through the "lever locking" method, the push rod 30 and the second pressure block 60 are fixedly connected. The rotational input of the implanted wheel 201 can be converted into a precise linear pressure output. At the same time, the locking force is amplified by mechanical gain, which completely solves the risk of brain tissue displacement and instrument loosening during the operation.

[0058] According to some optional embodiments of the present invention, the stent module 10 further includes a protective member 103, which is sleeved on the outer periphery of the implantation frame 102. The protective member 103 is rotatably connected to the handwheel 101 and is located on the side of the handwheel 101 away from the fixing member 202. Figure 1 and Figure 2As shown, the handwheel 101 is located between the protective member 103 and the fixing member 202. The protective member 103 can be rotatably connected to the handwheel 101 via two pins 104. Specifically, a mating groove is formed on the side of the handwheel 101 adjacent to the protective member 103. The mating groove extends circumferentially along the handwheel 101. During installation, one end of the handwheel 101 with the mating groove extends into the protective member 103. One end of each pin 104 passes through the handwheel 101 from one side and engages with the mating groove, then extends out from the other side of the handwheel 101. The two pins 104 are located on opposite radial sides of the handwheel 101 to clamp the handwheel 101. Thus, when the handwheel 101 is rotated, the handwheel 101 and the protective member 103 rotate relative to each other, preventing relative displacement between the protective member 103 and the handwheel 101. At the same time, the handwheel 101 can drive the protective member 103 to move axially along the push rod 30. In addition, the protective element 103 can be used to connect with other devices during the implantation of the flexible electrode to fix the auxiliary implantation device 100.

[0059] Optionally, both the inner wall of the protective member 103 and the outer wall of the implantation frame 102 are formed with flat keyways. By engaging the pins 105 in the two flat keyways respectively, it is ensured that the implantation frame 102 and the fixing member 202 can move up and down but cannot rotate relative to each other. Thus, the structural design of the support module 10 ensures that the entire auxiliary implantation device 100 does not rotate axially when the handwheel 101 is turned, thereby ensuring the stability of the flexible electrode implantation process, preventing the handwheel 101 from rotating and deviating during flexible electrode implantation, and ensuring the accuracy of flexible electrode implantation.

[0060] An assisted implantation system according to a second aspect of the present invention includes: an assisted implantation device 100 and a flexible electrode, wherein the assisted implantation device 100 is the assisted implantation device 100 according to the first aspect of the present invention described above; the flexible electrode is connected to a push rod 30 of the assisted implantation device 100.

[0061] According to the assisted implantation system of the present invention, by employing the above-described assisted implantation device 100, the risks of flexible electrode implantation surgery are greatly reduced, and the implantation speed, stability, surgical efficiency and patient experience of flexible electrodes are improved.

[0062] Other components and operations of the assisted implantation system according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0063] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0066] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An auxiliary implantation device, characterized in that, include: A stent module, the stent module including a handwheel and an implantation frame, the handwheel being sleeved on the outer periphery of the implantation frame; The control module includes an implant wheel and a fixing component, the fixing component being located between the handwheel and the implant wheel, and the fixing component being fixedly connected to the implant frame; A push rod, the implantation wheel, the fixation member and the implantation frame are inserted through the push rod along its axial direction, and one end of the push rod is adapted to be connected to a flexible electrode; The handwheel and the implantation frame are movable along the axial direction of the push rod. The implantation wheel and the fixing member are threadedly connected. The outer wall of the implantation wheel is provided with a scale. The difference between two adjacent values ​​of the scale is equal to the pitch of the implantation wheel. The outer wall of the fixing member is provided with an indexing plate. The indexing plate is used to divide the circumference of the fixing member into N equal parts, where N is an integer.

2. The assisted implantation device according to claim 1, characterized in that, The implanted wheel includes a rotating part and a connecting part that are connected to each other. The connecting part is located between the rotating part and the fixing member, and the scale is provided on the outer side wall of the connecting part.

3. The assisted implantation device according to claim 2, characterized in that, The fastener includes a body and a boss. The body has a receiving cavity, and the indexing plate is provided on the outer side wall of the body. The boss is disposed in the receiving cavity, and part of the connecting part is fitted in the receiving cavity and threadedly connected to the boss.

4. The assisted implantation device according to claim 3, characterized in that, A plurality of rolling elements are provided between the connecting portion and the body, and the plurality of rolling elements are spaced apart circumferentially along the body; and / or, The main body is fixedly connected to the implantation frame by multiple fixing screws.

5. The assistive implantation device according to any one of claims 1-4, characterized in that, Also includes: An extension arm, one end of which is fixedly connected to the implantation frame, and the other end of which extends along the axial direction of the push rod, and the extension arm is located on one side of the radial direction of the push rod; A first pressure block, one end of which is fixedly connected to the other end of the extension arm, and the other end of which extends along the axial direction of the push rod.

6. The assisted implantation device according to claim 5, characterized in that, The other end of the first pressure block is formed with a first through hole, which is opposite to one end of the push rod in the axial direction.

7. The assistive implantation device according to any one of claims 1-4, characterized in that, Also includes: The second pressure block is located on the side of the implanted wheel away from the fixation member. The second pressure block is connected to the implanted wheel by a limiting pin and passes through the push rod. An anti-rotation pin is provided, with its two ends fixedly connected to the second pressure block and the fixing member, respectively.

8. The assisted implantation device according to claim 7, characterized in that, The second pressure block includes: A first limiting part, on which a second through hole is formed, and a portion of the push rod is located within the second through hole; The second limiting part is provided on the side of the first limiting part away from the implanted wheel, and the second limiting part is located on the radial side of the second through hole; A fastening part is rotatably connected to the second limiting part. The fastening part is located on the other side of the radial direction of the second through hole. The fastening part is connected to the second limiting part by a fastener. A portion of the push rod is clamped between the fastener and the second limiting part.

9. The assisted implantation device according to claim 1, characterized in that, The support module also includes: A protective element is fitted around the outer periphery of the implantation frame, and the protective element is rotatably connected to the handwheel and located on the side of the handwheel away from the fixing element.

10. An assisted implantation system, characterized in that, include: An auxiliary implantation device, wherein the auxiliary implantation device is the auxiliary implantation device according to any one of claims 1-9; A flexible electrode is connected to the push rod of the auxiliary implantation device.

Images