Fibrous ring stitching instrument under spine endoscope

Abstract

The invention relates to the technical field of medical instruments, in particular to a spinal endoscope fiber ring stitching instrument which comprises a sleeve, a puncture needle is arranged in the sleeve, a puncture head is hinged to the bottom of the puncture needle, and an adjusting assembly used for adjusting the angle of the puncture head is arranged on the puncture needle. The adjusting assembly comprises a gear and a rack. The gear is fixedly connected to the hinged position of the puncture needle and the puncture head. The rack is meshed with the gear and is in sliding fit with the inner wall of the puncture needle. A driving assembly used for driving the rack to move is arranged on the outer side of the sleeve. The gear is provided with a guide assembly used for guiding a suture line. The driving assembly is used for driving the guiding assembly to guide the suture line. The puncture head is provided with a fixing assembly used for assisting in fixing a suture line. The driving assembly is used for driving the fixing assembly to fix the suture line. The multi-angle adjustment of the puncture head can be completed without greatly moving the instrument, and the operation blind area caused by space limitation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an annulus fibrosus suture device under a spinal endoscope. Background Art

[0002] During lumbar discectomy, although simple nucleotomy can relieve nerve compression, it cannot repair the ruptured annulus fibrosus. The remaining nucleus pulposus may protrude again from the break, resulting in a relatively high postoperative recurrence rate. Although spinal endoscopy technology can achieve minimally invasive decompression, its narrow channel limits the operation of traditional suture instruments. It is difficult for doctors to complete delicate sutures at deep incisions, resulting in long-term exposure of the annulus fibrosus break. Therefore, various forms of annulus fibrosus suture devices have emerged.

[0003] In the prior art, the patent number CN118750059A discloses an annulus fibrosus suture device under a spinal endoscope. This patent inserts the first puncture needle and the second puncture needle into both sides of the annulus fibrosus break respectively, and passes one end of the suture through the inside of the coil to tie a knot. However, the puncture needles of this patent do not have an adjustment function, and the operation in a narrow area is limited. The operation may fail due to blind spots during the operation.

[0004] In summary, how to solve the problems that the puncture needles in the prior art do not have an adjustment function, the operation in a narrow area is limited, and the operation may fail due to blind spots during the operation has become a difficult problem that needs to be solved urgently in the current field. Therefore, it is necessary to propose an annulus fibrosus suture device under a spinal endoscope. Summary of the Invention

[0005] To solve the above problems, the present invention provides an annulus fibrosus suture device under a spinal endoscope. The driving component drives the rack to move, and uses the meshing transmission of the gear and the rack to convert the linear motion into the rotational motion of the gear, thereby precisely controlling the angular deflection of the puncture head. In the narrow channel of the spinal endoscope, the multi-angle adjustment of the puncture head can be completed without significantly moving the instrument, reducing the operation blind spots caused by space limitations.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows: An annulus fibrosus suture device under a spinal endoscope includes a sleeve, a puncture needle is arranged inside the sleeve, the bottom of the puncture needle is hinged with a puncture head, and an adjustment component for adjusting the angle of the puncture head is arranged on the puncture needle.

[0007] The adjustment component includes a gear and a rack. The gear is coaxially and fixedly connected to the hinge shaft of the puncture needle and the puncture head; the rack meshes with the gear, and the rack is slidably matched with the inner wall of the puncture needle.

[0008] A driving component for driving the rack to move is arranged outside the sleeve. A guiding component for guiding the suture is arranged on the gear; the driving component is used to drive the guiding component to guide the suture.

[0009] The puncture head is provided with a fixing component for assisting in fixing the suture; the driving component is used to drive the fixing component to fix the suture. When the rack moves, it synchronously drives the gear to rotate, drives the puncture head to adjust the angle, and synchronously drives the guiding component and the fixing component to operate to guide the suture and assist in fixing the suture. The sleeve is provided with a knot-pushing component for assisting in knotting the suture and a cutting component for cutting the suture.

[0010] The technical principle of the above solution is as follows:

[0011] By driving the rack to move through the driving component, since the gear meshes with the rack and the gear is coaxially fixedly connected to the hinge shaft of the puncture needle and the puncture head, the gear can be driven to rotate when the rack moves, and the rotation of the gear can synchronously drive the puncture head to rotate its angle, realizing the position adjustment of the puncture head in a narrow space. When the puncture head is adjusted to the appropriate position, the design of the guiding component can guide the suture to the corresponding position, and the suture is fixed through the fixing component; after the fixing is completed, the design of the knot-pushing component can knot the suture, and after the knotting, the cutting component can cut the suture, thus completing the suture of the annulus fibrosus opening.

[0012] Adopting the above solution has the following beneficial effects:

[0013] 1. In the present invention, the driving component drives the rack to move. Compared with the existing stapler with a fixed angle, by using the meshing transmission of the gear and the rack, the linear motion is converted into the rotational motion of the gear, so as to accurately control the angular deflection of the puncture head. In the narrow channel of the spinal endoscope, the multi-angle adjustment of the puncture head can be completed without significantly moving the instrument, reducing the operation blind area caused by space limitations.

[0014] 2. The design of the guiding component and the fixing component in the present invention can guide the suture to the corresponding position for fixing, ensuring that the suture is operated on the correct path, reducing the deviation of the suture position and the tediousness caused by repeated operations, thereby improving the quality and reliability of the final suture. Compared with the existing method of using an open chute for transmission, the offset of the suture can be reduced, thus effectively improving the suture efficiency.

[0015] 3. Compared with the existing device for knotting at the suture opening, the design of the knot-pushing component in the present invention makes the knotting operation of the suture simpler, can simplify the operation, reduce the knotting time, and thus improve the surgical efficiency. Through the cutting component, the suture can be cut to an appropriate length after the suture knotting is completed, completing the entire suture operation, making the entire suture process more complete and orderly.

[0016] Further, the driving component includes a controller and a telescopic member. The controller is used to control the telescopic member to expand and contract. The telescopic member is located outside the puncture needle, and the output shaft of the telescopic member is fixedly connected to the rack.

[0017] Beneficial effects: Since the output shaft of the telescopic member is fixedly connected to the rack, the rack can be synchronously driven to move by the telescopic member, enabling the subsequent puncture needle to be adjusted at multiple angles, thereby enhancing the practicality of the device.

[0018] Further, the guiding component includes a guiding wheel rotatably connected to the inner wall of the puncture needle. A through hole is formed in the guiding wheel, and the guiding wheel is coaxially and fixedly connected to the gear. A guiding plate is hinged to the side of the puncture head away from the puncture needle. An opening and closing component for opening the guiding plate is provided on the guiding wheel.

[0019] Beneficial effects: Since a through hole is formed in the guiding wheel and the guiding wheel is coaxially and fixedly connected to the gear, when the gear rotates, the guiding wheel rotates synchronously with the gear. The through hole can be used to guide the suture thread, so that when the puncture head rotates to a corresponding angle, the suture thread rotates along with its direction. And due to the design of the through hole, it has a limiting effect, reducing the situation of deflection when the suture thread is transmitted.

[0020] Further, the opening and closing component includes a thread roller coaxially and fixedly connected to the guiding wheel. A tensioning wire is fixedly connected to the thread roller. A rotating rod is fixedly connected to the hinged part of the puncture head and the guiding plate. One end of the tensioning wire away from the thread roller is fixedly connected to the rotating rod.

[0021] Beneficial effects: Since the thread roller is coaxially and fixedly connected to the guiding wheel, one end of the tensioning wire is fixedly connected to the thread roller, and the other end of the tensioning wire is fixedly connected to the rotating rod, the tensioning wire can be pulled when the thread roller rotates. The tensioning wire then pulls the rotating rod to rotate, and the rotation of the rotating rod can drive the guiding plate to rotate synchronously, enabling the guiding plate to be opened, so that the suture thread can reach the designated position. The design of the guiding plate can close the channel inside the puncture needle when the suture thread does not pass through, thereby reducing the entry of external impurities into the puncture needle, and further reducing the risk of the suture thread being blocked by impurities, enabling the suture thread to be accurately conveyed into the inner part of the annulus fibrosus.

[0022] Further, the fixing component includes a torsion spring sleeved on the outer wall of the rotating rod. A guiding opening for the suture thread to pass through is formed in the guiding plate.

[0023] Beneficial effects: Since a torsion spring is sleeved on the outer wall of the rotating rod, when the puncture head adjusts the angle, the thread roller rotates back to its original position, enabling the tensioning wire to release the rotated rotating rod, so that the guiding plate can be closed. During this process, the guiding plate can deflect the suture thread into a T-shaped structure, so that the suture thread can be fixed to the inner wall of the annulus fibrosus. The guiding opening is used to retain the suture thread on the annulus fibrosus when the puncture head is pulled out.

[0024] Further, the knot-pushing assembly includes a pushing rod, one end of the pushing rod is fixedly connected with a pushing handle, and the other end of the pushing rod is fixedly connected with a pushing ring.

[0025] Beneficial effects: After the suture is fixed to the inner wall of the annulus fibrosus, a knot is tied on the suture, and the knot on the suture is pushed to the outer surface of the annulus fibrosus by using the pushing ring, so as to suture the suture, and the operation is simple.

[0026] Further, the cutting assembly includes a cutting plate fixedly connected to the sleeve, and a cutting opening is formed on the cutting plate; a cutting knife is hinged to one side of the cutting plate away from the sleeve, and a pulling wire is fixedly connected to the bottom of the cutting knife; one end of the pulling wire away from the cutting knife is fixedly connected with a pulling handle, and the pulling handle is hinged to the outer wall of the sleeve.

[0027] A return component for driving the cutting knife to return to its original position is arranged on the cutting plate.

[0028] Beneficial effects: Since the cutting knife is hinged to the cutting plate and the pulling wire is fixedly connected to the bottom of the cutting knife, the cutting knife can be pulled by pulling the pulling wire to make it close to the cutting plate, so as to cut the suture. The design of using the pulling handle can fix the pulling wire, making the operation simple and portable, and further increasing the portability of the device.

[0029] Further, the return component includes a tension spring, one end of the tension spring is fixedly connected to the bottom of the cutting plate, and the other end of the tension spring is fixedly connected to the bottom of the cutting knife; a plurality of stoppers are fixedly connected to one side of the cutting plate away from the sleeve.

[0030] Beneficial effects: Since both ends of the tension spring are fixedly connected to the cutting plate and the cutting knife respectively, the tension spring can restore the cutting knife to its original position after the pulling wire is released. The design of using the stoppers can provide a limit for the cutting knife to make its movement stable.

[0031] Further, a pressure sensor is fixedly connected to the side of the guiding plate away from the puncture head, and the controller is used to receive and store the pressure information sent by the pressure sensor.

[0032] Beneficial effects: The pressure sensor can be used to monitor the pressure applied to the surrounding tissues of the annulus fibrosus in real time, so that the doctor can adjust the force according to the feedback information during the operation, and reduce the risk of damage to the surrounding tissues caused by excessive pressure.

[0033] Further, a position sensor is also fixedly connected to the bottom of the puncture head, and the controller is used to receive and store the position information sent by the position sensor.

[0034] Beneficial effects: The position sensor can provide real-time feedback on the specific position of the puncture head, so that the doctor can more accurately control its movement path and final positioning, thereby improving the accuracy of minimally invasive surgery.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0036] Figure 1 It is an axonometric view of the annulus fibrosus suture device under spinal endoscope of the present invention.

[0037] Figure 2 It is a cross-sectional view of the puncture needle in the annulus fibrosus suture device under spinal endoscope of the present invention.

[0038] Figure 3 It is an axonometric view of the adjustment assembly in the annulus fibrosus suture device under spinal endoscope of the present invention.

[0039] Figure 4 It is an axonometric view of the knot-pushing assembly in the annulus fibrosus suture device under spinal endoscope of the present invention.

[0040] Figure 5 For the present invention Figure 1 Enlarged view of part A in

[0041] Figure 6 For the present invention Figure 2 Enlarged view of part B in

[0042] Reference numerals in the accompanying drawings of the specification include: 1, cannula; 2, puncture needle; 3, puncture head; 4, gear; 5, rack; 6, electric push rod; 7, guide wheel; 8, guide plate; 9, wire roller; 10, rotating rod; 11, pushing rod; 12, pushing handle; 13, pushing ring; 14, cutting plate; 15, cutting knife; 16, pulling handle; 17, tension spring; 18, stop block. Detailed Description of the Invention

[0043] The following is a further detailed description through specific embodiments:

[0044] Embodiment 1:

[0045] As shown in the Figures 1-6 accompanying drawings: An annulus fibrosus suture device under spinal endoscope includes a cannula 1. A puncture needle 2 is provided inside the cannula 1. The bottom of the puncture needle 2 is hinged with a puncture head 3 through a pin. An adjustment assembly for adjusting the angle of the puncture head 3 is provided on the puncture needle 2.

[0046] The adjustment assembly includes a gear 4 and a rack 5. The gear 4 is coaxially fixedly clamped with the hinge shaft of the puncture needle 2 and the puncture head 3; the rack 5 meshes with the gear 4, and the rack 5 is slidably fitted with the inner wall of the puncture needle 2.

[0047] A driving assembly for driving the movement of the rack 5 is provided outside the sleeve 1. The driving assembly includes a controller and a telescopic member. In this embodiment, the telescopic member is an electric push rod 6; the controller is used to control the telescopic movement of the electric push rod 6; the electric push rod 6 is located outside the puncture needle 2, and the output shaft of the electric push rod 6 is fixedly connected to the rack 5 through a coupling. In this embodiment, the electric push rod 6 is installed on the side wall of the sleeve 1.

[0048] A guiding assembly for guiding the suture is provided on the gear 4; the driving assembly is used to drive the guiding assembly to guide the suture.

[0049] Combined Figure 3 As shown, the guiding assembly includes a guiding wheel 7, and the guiding wheel 7 is rotatably connected to the inner wall of the puncture needle 2; a through hole is opened on the guiding wheel 7, and the guiding wheel 7 is coaxially and fixedly clamped with the gear 4; a guiding plate 8 is hinged to the side of the puncture head 3 away from the puncture needle 2.

[0050] Combined Figure 6 As shown, an opening and closing assembly for opening the guiding plate 8 is provided on the guiding wheel 7. The opening and closing assembly includes a thread roller 9 coaxially and fixedly clamped on the guiding wheel 7, and a tensioning wire is fixedly sleeved on the thread roller 9; a rotating rod 10 is fixedly clamped at the hinged joint of the puncture head 3 and the guiding plate 8, and one end of the tensioning wire away from the thread roller 9 is fixedly sleeved with the rotating rod 10.

[0051] A fixing assembly for assisting in fixing the suture is provided on the puncture head 3; the driving assembly is used to drive the fixing assembly to fix the suture. The fixing assembly includes a torsion spring sleeved on the outer wall of the rotating rod 10, and a guiding opening for the suture to pass through is opened on the guiding plate 8. When the rack 5 moves, it synchronously drives the gear 4 to rotate, drives the puncture head 3 to adjust the angle, and synchronously drives the guiding assembly and the fixing assembly to operate to guide the suture and assist in fixing the suture.

[0052] A knot pushing assembly for assisting in knotting the suture and a cutting assembly for cutting the suture are provided inside the sleeve 1.

[0053] Combined Figure 4 As shown, the knot pushing assembly includes a pushing rod 11, one end of the pushing rod 11 is fixedly connected to a pushing handle 12 by screws, and the other end of the pushing rod 11 is fixedly connected to a pushing ring 13 by screws.

[0054] Combined Figure 5 As shown, the cutting assembly includes a cutting plate 14 fixedly bonded to the sleeve 1, and a cutting opening is opened on the cutting plate 14; a cutting knife 15 is hinged to the side of the cutting plate 14 away from the sleeve 1, and a pulling wire is fixedly connected to the bottom of the cutting knife 15 by screws; one end of the pulling wire away from the cutting knife 15 is fixedly connected to a pulling handle 16 by screws, and the pulling handle 16 is hinged to the outer wall of the sleeve 1.

[0055] A return component for driving the cutting knife 15 to return is provided on the cutting plate 14. The return component includes a tension spring 17. One end of the tension spring 17 is fixedly connected to the bottom of the cutting plate 14 by a screw, and the other end of the tension spring 17 is fixedly connected to the bottom of the cutting knife 15 by a screw. A plurality of stoppers 18 are fixedly connected to the side of the cutting plate 14 away from the sleeve 1 by screws.

[0056] The specific implementation process is as follows:

[0057] First, before performing annulus fibrosus suture, the sleeve 1 is placed on the outer surface of the annulus fibrosus through a spinal endoscope, and the puncture needle 2 is gradually passed through the sleeve 1. Since the output shaft of the electric push rod 6 is fixedly connected to the rack 5 by a screw, the rack 5 can be synchronously driven to move by the electric push rod 6, realizing the power output of driving the rack 5 to move by the electric push rod 6.

[0058] In this embodiment, when the puncture needle 2 penetrates into the sleeve 1, the puncture head 3 is first adjusted to a vertical state in a straight line with the puncture needle 2. Since the gear 4 meshes with the rack 5 and the gear 4 is coaxially fixedly clamped with the hinge shaft of the puncture needle 2 and the puncture head 3, the gear 4 can be driven to rotate when the rack 5 moves, and the rotation of the gear 4 can synchronously drive the puncture head 3 to rotate its angle, realizing the position adjustment of the puncture head 3 in a narrow space. For Figure 2 example, when the gear 4 rotates clockwise, the puncture head 3 can deflect to the left; conversely, when the gear 4 rotates counterclockwise, the puncture head 3 deflects to the right. Through such a design, the angle of the puncture needle 2 can be adjusted when it gradually penetrates into the interior of the annulus fibrosus, so that the puncture head 3 can accurately penetrate both sides of the opening of the annulus fibrosus.

[0059] Since through holes are provided on the guide wheel 7 and the guide wheel 7 is coaxially fixedly clamped with the gear 4, the guide wheel 7 can rotate synchronously with the gear 4 when the gear 4 rotates, so that the through holes provided on the guide wheel 7 are rotated to different directions. In this embodiment, before suture, the suture is preferably passed through the through holes first, so that the suture passes through the annulus fibrosus synchronously with the puncture needle 2. When the puncture head 3 is adjusted to a specified position, the through holes can provide guidance for the suture, so that when the puncture head 3 rotates to a corresponding angle, the suture rotates along with the direction of the through holes. And the design of the through holes has a limiting effect, reducing the situation of deflection of the suture during transmission.

[0060] After the puncture head 3 passes through the inside of the annulus fibrosus, since the wire roller 9 and the guide wheel 7 are coaxially fixedly clamped, one end of the tension wire is fixedly sleeved with the wire roller 9, and the other end of the tension wire is fixedly sleeved with the rotating rod 10, so when the guide wheel 7 rotates, it can drive the wire roller 9 to rotate synchronously. When the wire roller 9 rotates, it can pull the tension wire, and the tension wire pulls the rotating rod 10 to rotate synchronously. When the rotating rod 10 rotates, it can drive the guiding plate 8 to rotate by a certain angle, so that the hole connecting the guiding plate 8 and the puncture head 2 can be opened, so that the suture can reach the designated position. In this embodiment, the wire roller 9 can pull the rotating rod 10 to rotate both when it rotates forward and backward. Moreover, by using the design of the guiding plate 8, when the suture does not pass through the inside of the puncture head 3, the channel inside the puncture needle 2 can be closed, thereby reducing the entry of external impurities into the puncture needle 2, and further reducing the risk of the suture being blocked by impurities, so that the suture can be accurately transported to the inside of the annulus fibrosus.

[0061] After the suture reaches the inside of the annulus fibrosus, the puncture head 3 is adjusted to a vertical state, so that the gear 4 returns to its original position; since a torsion spring is sleeved on the outer wall of the rotating rod 10, when the puncture head 3 is adjusted to a vertical state, the wire roller 9 can rotate back to its original position, so that the tension wire releases the rotated rotating rod 10, so that the guiding plate 8 can be closed. During this process, the guiding plate 8 can also deflect the suture into a T-shaped state. In this embodiment, the suture is provided with a connecting head with a T-shaped structure; thus, the suture can be fixed to the inner wall of the annulus fibrosus. The guiding port is used to retain the suture on the annulus fibrosus when the puncture head 3 is pulled out.

[0062] After the suture is fixed to the inner wall of the annulus fibrosus, a knot is tied on the suture outside the spinal endoscope, and the knot on the suture is pushed to the outer surface of the annulus fibrosus by using the pushing ring 13, so as to suture the suture, and the operation is simple.

[0063] Since the cutting knife 15 is hinged to the cutting plate 14, and a pull wire is fixedly connected to the bottom of the cutting knife 15 by a screw, the cutting knife 15 can be pulled by pulling the pull wire, so that the upper part of it is closed with the cutting plate 14, thereby cutting the suture. By using the design of the pulling handle 16, the pull wire can be fixed, making the operation simple and portable, and further increasing the portability of the device.

[0064] Since the two ends of the tension spring 17 are respectively fixedly connected to the cutting plate 14 and the cutting knife 15 by screws, after the pull wire is released, the tension spring 17 can restore the cutting knife 15 to its original position (as Figure 5 shown). And by using the design of the stopper 18, the cutting knife 15 can be limited, so that its movement is stable.

[0065] In the prior art, the puncture head 3 of some devices cannot flexibly adjust its angle, which may cause the suture to fail to penetrate into the designated position, thus making the operation less convenient. In this embodiment, the electric push rod 6 drives the rack 5 to move, and the meshing transmission between the gear 4 and the rack 5 is utilized to convert the linear motion into the rotational motion of the gear 4, thereby precisely controlling the angular deflection of the puncture head 3. Inside the narrow channel of the spinal endoscope, the multi-angle adjustment of the puncture head 3 can be completed without significantly moving the instrument, reducing the operation blind area caused by space limitations.

[0066] The design of the guide wheel 7 and the guide plate 8 can guide the suture to the corresponding position for fixation, ensuring that the suture operates on the correct path, reducing the deviation of the suture position and the tediousness caused by repeated operations, thereby improving the quality and reliability of the final suture. The design of the push rod 11 and the push ring 13 makes the knotting operation of the suture simpler, can simplify the operation, reduce the knotting time, and thus improve the surgical efficiency. Through the design of the cutting plate 14 and the cutting knife 15, the suture can be cut to an appropriate length after the suture knotting is completed, thereby completing the entire suture operation and making the entire suture process more complete and orderly.

[0067] Embodiment 2:

[0068] The difference from the above embodiment is that a pressure sensor is fixedly bonded to the side of the guide plate 8 away from the puncture head 3, and the controller is used to receive and store the pressure information sent by the pressure sensor.

[0069] The specific implementation process is as follows: The pressure sensor can real-time monitor the pressure applied to the surrounding tissues of the annulus fibrosus, enabling the doctor to adjust the force according to the feedback information during the operation, reducing the risk of damage to the surrounding tissues caused by excessive pressure.

[0070] Embodiment 3:

[0071] The difference from the above embodiment is that a position sensor is also fixedly connected to the bottom of the puncture head 3 by screws, and the controller is used to receive and store the position information sent by the position sensor; in this embodiment, the position sensor is an electromagnetic positioning sensor.

[0072] The specific implementation process is as follows: The position sensor can real-time feedback the specific position of the puncture head 3, enabling the doctor to more precisely control its movement path and final positioning, thereby improving the accuracy of minimally invasive surgery.

[0073] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A spinal endoscopic annulus suture device, comprising a cannula (1), wherein a puncture needle (2) is arranged inside the cannula (1), characterized in that: A puncture head (3) is hingedly connected to the bottom of the puncture needle (2), and an adjustment component for adjusting the angle of the puncture head (3) is provided on the puncture needle (2); The adjustment assembly comprises a gear (4) and a rack (5); the gear (4) is coaxially fixedly connected with the hinge shaft of the puncture needle (2) and the puncture head (3); the rack (5) and the gear (4) are meshed with each other, and the rack (5) is slidably matched with the inner wall of the puncture needle (2); A driving assembly for driving the rack (5) to move is provided on the outer side of the sleeve (1); The gear (4) is provided with a guide assembly for guiding the suture thread; the driving assembly is used to drive the guide assembly to guide the suture thread; The puncture head (3) is provided with a fixing component for assisting in fixing the suture thread; the driving component is used to drive the fixing component to fix the suture thread; When the rack (5) moves, the gear (4) is synchronously driven to rotate, driving the puncture head (3) to adjust the angle, and synchronously driving the guide component and the fixing component to operate to guide the suture and assist in fixing the suture; A knot-pushing assembly for assisting in knotting the suture thread and a cutting assembly for cutting the suture thread are arranged inside the sleeve (1).

2. The spinal endoscopic fiber ring suture device according to claim 1, characterized in that: The driving assembly comprises a controller and a telescopic member, wherein the controller is used to control the telescopic member to extend and retract; the telescopic member is located outside the puncture needle (2), and the output shaft of the telescopic member is fixedly connected to the rack (5).

3. The spinal endoscopic fiber ring suture device according to claim 2, characterized in that: The guide assembly comprises a guide wheel (7), the guide wheel (7) is rotatably connected to the inner wall of the puncture needle (2); a through hole is formed on the guide wheel (7), and the guide wheel (7) is coaxially fixedly connected to the gear (4); a guide plate (8) is hingedly connected to the side of the puncture head (3) away from the puncture needle (2); An opening and closing assembly for opening the guide plate (8) is provided on the guide wheel (7).

4. The spinal endoscopic fiber ring suture device according to claim 3, characterized in that: The opening and closing assembly comprises a wire roller (9) coaxially fixedly connected to a guide wheel (7), and a tension wire is fixedly connected to the wire roller (9); a rotating rod (10) is fixedly connected to a hinge between the piercing head (3) and the guide plate (8), and one end of the tension wire away from the wire roller (9) is fixedly connected to the rotating rod (10).

5. The spinal endoscopic fiber ring suture device according to claim 4, characterized in that: The fixing assembly comprises a torsion spring sleeved on the outer wall of the rotating rod (10), and a guide opening for the suture thread to pass through is opened on the guide plate (8).

6. The spinal endoscopic annulus suture device according to claim 5, characterized in that: The push-knot assembly comprises a push rod (11), one end of the push rod (11) is fixedly connected to a push handle (12), and the other end of the push rod (11) is fixedly connected to a push ring (13).

7. The spinal endoscopic fiber ring suture device according to claim 6, characterized in that: The cutting assembly comprises a cutting plate (14) fixedly connected to the sleeve (1), and a cutting opening is formed on the cutting plate (14); a cutting knife (15) is hingedly connected to the side of the cutting plate (14) away from the sleeve (1), and a pull wire is fixedly connected to the bottom of the cutting knife (15); an end of the pull wire away from the cutting knife (15) is fixedly connected to a pulling handle (16), and the pulling handle (16) is hingedly connected to the outer wall of the sleeve (1); The cutting plate (14) is provided with a return assembly for driving the cutting knife (15) to return to its original position.

8. The spinal endoscopic fiber ring suture device according to claim 7, characterized in that: The return assembly comprises a tension spring (17), one end of which is fixedly connected to the bottom of the cutting plate (14), and the other end of which is fixedly connected to the bottom of the cutting knife (15); a plurality of stoppers (18) are fixedly connected to the side of the cutting plate (14) away from the sleeve (1).

9. The spinal endoscopic fiber ring suture device according to claim 8, characterized in that: A pressure sensor is fixedly connected to the side of the guide plate (8) away from the puncture head (3), and the controller is used to receive and store pressure information sent by the pressure sensor.

10. The spinal endoscopic fiber ring suture device according to claim 9, characterized in that: A position sensor is also fixedly connected to the puncture head (3), and the controller is used to receive and store position information sent by the position sensor.

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