A cuff electrode implantation device

Abstract

The application relates to a Kaf electrode implanting device, which comprises a hand-held part, a transmission part and an execution part, a control unit is arranged on the hand-held part, the control unit is used for outputting operation instructions, the transmission part is used for transmitting the operation instructions to the execution part, and the execution part is used for pushing a Kaf electrode to a target area on a nerve bundle in response to the operation instructions. The application avoids the damage of nerve fibers caused by the deepening of surgical instruments, reduces the operation difficulty and time, and reduces the operation risk.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a kraft electrode implantation device. Background Technology

[0002] Nerve repair and regeneration has always been an important topic in the medical field, and in recent years, some new surgical strategies and medical devices have emerged, advancing the development of this field. For example, C7 nerve transfer surgery, as a new treatment method for centrally-related upper limb paralysis, has been widely proven effective, while optogenetic technology, as a rehabilitation method to regulate peripheral nerve repair and regeneration, has also played a positive role in the recovery of upper limb motor function in patients.

[0003] Different photoelectrode morphologies and implantation methods exist to meet different needs. In clinical practice, doctors usually require the assistance of auxiliary instruments to implant a Kraft-shaped photoelectrode array onto a patient's nerve. Many hospital surgical procedures have evolved over the years to the point of being "minimally invasive," with smaller incisions. Part of the surgery may be performed outside the naked eye using methods such as laparoscopy. However, current implantation methods cannot guarantee that the Kraft electrode can be implanted without damaging the nerve or nerve anastomosis within a small incision. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a kraft electrode implantation device that can reduce the difficulty and time of surgery and reduce surgical risks.

[0005] The technical solution adopted by the present invention to solve its technical problem is: to provide a Kraft electrode implantation device, including a handheld part, a transmission part and an execution part, wherein a control unit is provided on the handheld part, the control unit is used to output operation commands; the transmission part is used to transmit the operation commands to the execution part; and the execution part is used to push the Kraft electrode to the target area on the nerve bundle in response to the operation commands.

[0006] The actuator includes a support, a clamping mechanism, and a pushing mechanism. The support is used to fix the clamping mechanism and the pushing mechanism. The clamping mechanism is used to clamp the nerve bundle. The pushing mechanism is used to push the Kaff electrode to the target area on the nerve bundle.

[0007] The bracket has a "7" shaped structure, wherein the clamping mechanism is fixed below the short side of the "7" shaped structure, and the pushing mechanism is fixed outside the long side of the "7" shaped structure.

[0008] The clamping mechanism includes a nerve clamp, a nerve clamp transmission arm, and a nerve clamp telescopic rod. One end of the nerve clamp transmission arm is connected to the nerve clamp, and the other end is connected to the nerve clamp telescopic rod. The nerve clamp telescopic rod is connected to the transmission unit and is used to respond to a first nerve clamp operation command and a second nerve clamp operation command. When the nerve clamp telescopic rod responds to the first nerve clamp operation command, it moves towards the location of the transmission unit, causing the nerve clamp transmission arm to open the nerve clamp. When the nerve clamp telescopic rod responds to the second nerve clamp operation command, it moves away from the location of the transmission unit, causing the nerve clamp transmission arm to close the nerve clamp.

[0009] The nerve clip includes a first clamping end and a second clamping end, both of which are semi-circular tubes. The transmission arm includes a first transmission element and a second transmission element. One end of the first transmission element is connected to the telescopic rod of the nerve clip, and the other end is connected to the first clamping end. One end of the second transmission element is connected to the telescopic rod of the nerve clip, and the other end is connected to the second clamping end. When the nerve clip is in a closed state, the first clamping end and the second clamping end form a circular tube that can wrap around the nerve bundle.

[0010] The pushing mechanism includes a pusher and a pusher block. The output end of the pusher is connected to the pusher block and is used to respond to a pushing operation command. When the pusher responds to the pushing operation command, the pusher block moves away from the clamping mechanism, causing the Kraft electrode to be pushed to the target area on the nerve bundle.

[0011] The nerve clip of the clamping mechanism is in the shape of a cylindrical tube when closed. The Kaff electrode is nested on the cylindrical nerve clip. The pusher is disposed on the nerve clip and located on one side of the Kaff electrode. When the pusher responds to the push operation command, the pusher can push the Kaff electrode to the target area on the nerve bundle along the axis of the nerve clip.

[0012] Beneficial effects

[0013] Due to the adoption of the above-mentioned technical solutions, the present invention has the following advantages and positive effects compared with the prior art: The present invention uses a nerve clip to locate the nerve and for the directional delivery of the Cuff electrode towards the nerve fiber, it can deliver the Cuff electrode to the target area more accurately and stably, providing a stable guide for pushing the Cuff electrode for implantation, avoiding damage to the nerve fiber caused by the deep insertion of surgical instruments. The present invention can push and implant the Cuff electrode to the predetermined position at a distance from the nerve fiber through the transmission device, reducing the difficulty and time of surgery and reducing the surgical risk. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of one side of the execution unit in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the other side of the execution unit in an embodiment of the present invention. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0018] Embodiments of the present invention relate to a kraft electrode implantation device, such as... Figure 1 As shown, it includes a handheld part 1, a transmission part 2, and an execution part 3. The handheld part 3 is equipped with a control unit, which is used to output operation commands. The transmission part 2 is used to transmit the operation commands to the execution part 3. The execution part 3 is used to push the Kaff electrode 4 to the target area on the nerve bundle in response to the operation commands.

[0019] like Figure 2 As shown, the actuator 3 includes a support 31, a clamping mechanism 32, and a pushing mechanism 33. The support 31 is used to fix the clamping mechanism 32 and the pushing mechanism 33. The clamping mechanism 32 is used to clamp the nerve bundle, and the pushing mechanism 33 is used to push the Kaff electrode to the target area on the nerve bundle. In this embodiment, the support 31 has a "7" shaped structure, wherein the clamping mechanism 32 is fixed below the short side of the "7" shaped structure, and the pushing mechanism 33 is fixed outside the long side of the "7" shaped structure.

[0020] like Figure 3As shown, the clamping mechanism 32 includes a neural clamp 321, a neural clamp transmission arm 322, and a neural clamp telescopic rod 323. One end of the neural clamp transmission arm 322 is connected to the neural clamp 321, and the other end is connected to the neural clamp telescopic rod 323. The neural clamp telescopic rod 323 is connected to the transmission unit and is used to respond to a first neural clamp operation command and a second neural clamp operation command. That is, the control unit of the handheld part 3 generates a first neural clamp operation command and a second neural clamp operation command under the user's operation, and the neural clamp telescopic rod 323 generates a corresponding command based on the received first neural clamp operation command and second neural clamp operation command. The action enables the opening and closing of the nerve clip 321. Specifically, when the nerve clip telescopic rod 323 responds to the first nerve clip operation command, the nerve clip telescopic rod 323 moves towards the location of the transmission part 2 (i.e., pulls upward), which can drive the nerve clip transmission arm 322 to make the nerve clip 321 open. When the nerve clip telescopic rod 323 responds to the second nerve clip operation command, the nerve clip telescopic rod 323 moves away from the location of the transmission part 2 (i.e. extends downward), which drives the nerve clip transmission arm 322 to make the nerve clip 321 close.

[0021] In this embodiment, the nerve clip 321 includes a first clamping end 3211 and a second clamping end 3212, both of which are semi-circular tubes. The transmission arm 322 includes a first transmission element 3221 and a second transmission element 3222. One end of the first transmission element 3221 is hinged to the nerve clip telescopic rod 321, and the other end is connected to the first clamping end 3211. One end of the second transmission element 3222 is hinged to the nerve clip telescopic rod 321, and the other end is connected to the second clamping end 3212. The first transmission element 3221 and the second transmission element 3222 are... 2. With the same structure, in this embodiment, the transmission element includes a connecting arm and a hinge block. One end of the connecting arm is hinged to the nerve clip telescopic rod 321, and the other end is hinged to the upper end of the hinge block. The lower end of the hinge block is fixed to the clamping end, and a rotating shaft is provided in the hinge block. This rotating shaft can be connected to a bushing on the support. When the nerve clip telescopic rod 323 is pulled upward, the connecting arm is pulled upward, causing the hinge block to rotate counterclockwise around the rotating shaft, thereby opening the nerve clip 321. When the nerve clip telescopic rod 323 extends downward, the connecting arm is pushed downward, causing the hinge block to rotate clockwise around the rotating shaft, thereby closing the nerve clip 321. In this embodiment, when the nerve clip 321 is in the closed state, the first clamping end 3211 and the second clamping end 3212 form a circular tube capable of enclosing the nerve bundle.

[0022] The pushing mechanism 33 includes a pusher 331 and a pusher block 332. The output end of the pusher 331 is connected to the pusher block 332 and is used to respond to a pushing operation command. When the pusher 331 responds to the pushing operation command, the pusher block 332 moves away from the clamping mechanism 32, so that the Kraft electrode 4 is pushed to the target area on the nerve bundle.

[0023] In this embodiment, the neural clip 321 of the clamping mechanism 32 is in the shape of a cylindrical tube when closed. The Kraft electrode 4 can be nested on the cylindrical neural clip 321. The lower end of the push block 332 is provided with a recess, which is embedded in the cylindrical neural clip 321. The push block 332 is located on one side of the Kraft electrode 4. When the pusher 331 responds to the push operation command, the push block 332 can push the Kraft electrode to the target area on the nerve bundle along the axial direction of the neural clip 321.

[0024] It is easy to see that the Kraft electrode implantation device of this embodiment uses a nerve clip to locate the nerve bundle, which can deliver the Kraft electrode to the target area more accurately and stably. Furthermore, the cylindrical nerve clip can provide a stable guide for pushing the Kraft electrode implantation, avoiding damage to nerve fibers caused by the deep insertion of surgical instruments.

[0025] In this embodiment of the Kraft electrode implantation device, when implanting the Kraft electrode, the site of the nerve bundle that needs to be stimulated for repair and growth is first identified. The Kraft electrode implantation device is then adjusted to its initial state, i.e., the nerve clip 321 is closed and the pusher 331 is not deployed. Next, the Kraft electrode 4 is nested in the closed nerve clip 321. The actuator 3 is inserted into the wound to locate the site of the nerve bundle that needs to be stimulated for repair and growth. The nerve clip 321 is opened, and since the Kraft electrode 4 is a flexible component, it also opens accordingly. The opened nerve clip 321 is deployed onto the nerve bundle. The nerve clip 321 is then closed by the control unit of the handheld part 1. At this point, the nerve clip 321 is nested around the nerve bundle. Then, the control unit of the handheld part 1 issues a push command, and the pusher 331 deploys the pusher block 332, pushing the Kraft electrode 4 onto the nerve bundle, completing the implantation. At this point, the device can be removed simply by opening the nerve clip 321.

[0026] When it is necessary to remove the Kraft electrode, the Kraft electrode implantation device of this embodiment can also be used. The specific process is as follows: the actuator 3 is inserted into the wound to find the location where the Kraft electrode 4 needs to be removed, the nerve clip 321 is opened, the opened nerve clip 321 is deployed on the nerve bundle, the Kraft electrode 4 is fitted into the nerve clip 321, and the nerve clip 321 is opened by the control unit of the handheld part 1. Since the Kraft electrode 4 is a flexible part, it will also open. At this time, the device can be withdrawn to complete the removal operation of the Kraft electrode.

[0027] Therefore, the Kraft electrode implantation device of this embodiment can push and implant the Kraft electrode at a predetermined position away from the nerve fiber through the transmission unit. Its compact structure allows for the implantation of the Kraft electrode through a small incision approach, replacing traditional instruments. The operation of the entire device can be learned without complicated training. It is simple, flexible and has good controllability, and can achieve precise delivery guided by fine manipulation.

Claims

1. A Kraft electrode implantation device, characterized in that, The device includes a handheld unit, a transmission unit, and an execution unit. The handheld unit is equipped with a control unit for outputting operation commands. The transmission unit transmits the operation commands to the execution unit. The execution unit responds to the operation commands by pushing a Kraft electrode to a target region on a nerve bundle. The execution unit includes a support, a clamping mechanism, and a pushing mechanism. The support is used to fix the clamping and pushing mechanisms. The clamping mechanism clamps the nerve bundle, and the pushing mechanism pushes the Kraft electrode to the target region on the nerve bundle. The clamping mechanism includes a nerve clip, a nerve clip transmission arm, and a nerve clip telescopic rod. One end of the nerve clip transmission arm is connected to the nerve clip, and the other end is connected to the nerve clip telescopic rod. The nerve clip telescopic rod is connected to the transmission unit and responds to a first nerve clip operation command and a second nerve clip operation command. When the nerve clip telescopic rod responds to the first nerve clip operation command, the nerve clip telescopic rod moves towards the target region on the nerve bundle. The position of the transmission unit moves, causing the nerve clip transmission arm to open the nerve clip. When the nerve clip telescopic rod responds to the second nerve clip operation command, it moves away from the position of the transmission unit, causing the nerve clip transmission arm to close the nerve clip. The pushing mechanism includes a pusher and a push block. The output end of the pusher is connected to the push block and is used to respond to the pushing operation command. When the pusher responds to the pushing operation command, the push block moves away from the clamping mechanism, pushing the kraft electrode to the target area on the nerve bundle. When the nerve clip of the clamping mechanism is closed, it is in the shape of a cylindrical tube. The kraft electrode is nested in the cylindrical nerve clip. The push block is disposed on the nerve clip and located on one side of the kraft electrode. When the pusher responds to the pushing operation command, the push block can push the kraft electrode to the target area on the nerve bundle along the axis of the nerve clip.

2. The Kraft electrode implantation device according to claim 1, characterized in that, The bracket has a "7" shaped structure, wherein the clamping mechanism is fixed below the short side of the "7" shaped structure, and the pushing mechanism is fixed outside the long side of the "7" shaped structure.

3. The Kraft electrode implantation device according to claim 1, characterized in that, The nerve clip includes a first clamping end and a second clamping end, both of which are semi-circular tubes. The transmission arm includes a first transmission element and a second transmission element. One end of the first transmission element is connected to the telescopic rod of the nerve clip, and the other end is connected to the first clamping end. One end of the second transmission element is connected to the telescopic rod of the nerve clip, and the other end is connected to the second clamping end. When the nerve clip is in a closed state, the first clamping end and the second clamping end form a circular tube that can wrap around the nerve bundle.

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