Annulus sealing device

Abstract

This invention proposes a fiber ring plugging device, comprising a frame, a first clamping assembly, and a driving assembly. The first clamping assembly includes a first clamping member and a second clamping member, one of which is fixed to the frame, while the other is movably mounted on the frame. The first and second clamping members can move closer together to clamp the fiber ring or move further apart to release the fiber ring. The driving assembly is mounted on the frame and connected to the other of the first and second clamping members to drive it. The fiber ring plugging device of this invention has the advantages of simple operation, good support effect, and high stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a fibrous ring plugging device. BACKGROUND

[0002] In related art, the repair of fibrous ring gaps is mostly performed by using the surgical technique of suture with a pulling block. The pulling block has poor supporting effect on the fibrous ring gap, and the pulling block is linearly flexible and fixed, which is easy to slip and dislocate, and has poor stability. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, an embodiment of the present application provides a fibrous ring plugging device, which has the advantages of simple operation, good supporting effect and high stability.

[0005] The fibrous ring plugging device according to an embodiment of the present application comprises a frame body, a first clamping assembly and a driving assembly. The first clamping assembly comprises a first clamping piece and a second clamping piece. One of the first clamping piece and the second clamping piece is fixed on the frame body, and the other is movably arranged on the frame body. The first clamping piece and the second clamping piece can be close to each other to clamp the fibrous ring or away from each other to release the fibrous ring. The driving assembly is arranged on the frame body and connected with the other of the first clamping piece and the second clamping piece to drive the other of the first clamping piece and the second clamping piece to move.

[0006] The fibrous ring plugging device according to an embodiment of the present application can clamp the fibrous ring by controlling the driving assembly to drive the first clamping assembly, so as to stably fix the device at the position of the fibrous ring gap to avoid slipping.

[0007] In some embodiments, the fibrous ring plugging device further comprises a second clamping assembly. The second clamping assembly and the first clamping assembly are oppositely arranged on the frame body and can clamp two free ends of the fibrous ring, respectively.

[0008] The second clamping assembly comprises a third clamping piece and a fourth clamping piece. One of the third clamping piece and the fourth clamping piece is fixed on the frame body, and the other is movably arranged on the frame body. The third clamping piece and the fourth clamping piece can be close to each other to clamp the fibrous ring or away from each other to release the fibrous ring.

[0009] The driving assembly is connected with the other of the third clamping piece and the fourth clamping piece to drive the other of the third clamping piece and the fourth clamping piece to move.

[0010] In some embodiments, the driving assembly comprises a driving member and first and second push plates connected with the driving member, the first and second push plates are movably arranged on the frame body in the transverse direction of the frame body, and the driving member is capable of driving the first and second push plates to move in the transverse direction of the frame body.

[0011] The first push plate is rotationally connected with the first or second clamping member movably connected with the frame body, and the transverse movement of the first push plate is capable of driving the first or second clamping member to rotate.

[0012] The second push plate is rotationally connected with the third or fourth clamping member movably connected with the frame body, and the transverse movement of the second push plate is capable of driving the third or fourth clamping member to rotate.

[0013] In some embodiments, the first or second clamping member movably connected with the frame body is provided with a first rotating part, one side of the first push plate in the longitudinal direction of the frame body is provided with a first connecting part rotationally connected with the first rotating part so as to drive the first rotating part to rotate, and the third or fourth clamping member movably connected with the frame body is provided with a second rotating part, one side of the second push plate in the longitudinal direction of the frame body is provided with a second connecting part rotationally connected with the second rotating part so as to drive the second rotating part to rotate.

[0014] In some embodiments, the driving member is rotationally arranged on the frame body, the first and second push plates are located on both sides of the driving member in the thickness direction of the frame body, and the first and second push plates are both connected with the outer peripheral surface of the driving member, and the driving member is capable of driving the first and second push plates to move in opposite directions in the transverse direction of the frame body.

[0015] In some embodiments, the first and second push plates both comprise an extending part, the two extending parts are located on both sides of the driving member in the transverse direction of the frame body, and the two extending parts both have a tip extending in the transverse direction of the frame body.

[0016] In some embodiments, at least two top pins are movably arranged on the frame body in the thickness direction of the frame body, the two extending parts both have an inclined surface, and the two inclined surfaces are oppositely arranged and respectively cooperate with at least one top pin to drive the top pin to extend out of the frame body and connect with the endplate of the vertebral body.

[0017] In some embodiments, the driving member comprises a control section, the operation part is arranged at one end of the driving member away from the frame body, a circumferential wall surface of the operation part is provided with an annular groove, the annular groove is arranged along the circumferential direction of the operation part, and the frame body is provided with an anti-retreating protrusion matched in the annular groove.

[0018] In some embodiments, the driving member further comprises a locking block and a plurality of locking grooves, the locking block is arranged on one of the operation part and the frame body, the plurality of locking grooves are arranged on the other one of the operation part and the frame body, the plurality of locking grooves are uniformly and spacedly arranged along the circumferential direction of the driving member, and the locking block is matched with one of the locking grooves for limiting rotation of the driving member.

[0019] In some embodiments, a side of the frame body facing the inside of the annular fiber is provided with a plurality of first toothed nails, and the plurality of first toothed nails are spacedly arranged; and / or, at least one second toothed nail is arranged on a side of the first clamping member, the second clamping member, and the third clamping member and the fourth clamping member facing the annular fiber. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is an exploded view of the annular fiber plugging device according to an embodiment of the present application.

[0021] Figure 2 is a schematic view of the internal structure of the annular fiber plugging device according to an embodiment of the present application.

[0022] Figure 3 is a schematic view of the frame body of the annular fiber plugging device according to an embodiment of the present application.

[0023] Figure 4 is a schematic view of the annular fiber plugging device according to an embodiment of the present application.

[0024] Figure 5 is a schematic view of the driving member of the annular fiber plugging device according to an embodiment of the present application.

[0025] Figure 6 is a schematic view of the first push plate or the second push plate of the annular fiber plugging device according to an embodiment of the present application.

[0026] Figure 7 is a schematic view of the installation of the annular fiber plugging device according to an embodiment of the present application.

[0027] Figure 8 is a schematic view of the driving member of the annular fiber plugging device according to an embodiment of the present application in an initial state.

[0028] Figure 9 is a schematic view of the driving member of the annular fiber plugging device according to an embodiment of the present application in a locked position.

[0029] REFERENCE NUMERALS:

[0030] Vertebral body 100; annulus fibrosus 200; annulus fibrosus occlusion device 300;

[0031] Frame 1; Anti-reverse protrusion 11; Locking groove 12; First shaft 13; Second shaft 14;

[0032] First clamping assembly 21; first clamping member 211; first clamping part 2111; first rotating part 2112; first gear 2113; second clamping member 212;

[0033] Second clamping assembly 22; third clamping member 221; second clamping part 2211; second rotating part 2212; second gear 2213; fourth clamping member 222;

[0034] Drive component 31; Operating part 311; Annular groove 3111; Control groove 3112; Locking block 3113;

[0035] First push plate 32; first connecting part 321; first toothed row 322; first protruding part 323; first inclined surface 3231; third toothed row 324;

[0036] Second push plate 33; second connecting part 331; second tooth row 332; second protruding part 333; second inclined surface 3331; fourth tooth row 334;

[0037] First thimble 41; Second thimble 42;

[0038] First toothed screw 51; second toothed screw 52. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1-7 As shown, the fiber ring sealing device 300 of this embodiment includes: a frame 1, a first clamping assembly 21, and a driving assembly.

[0041] It should be noted that the material of the annulus fibrosus blocking device 300 is safe for the human body, such as titanium alloy material. The annulus fibrosus blocking device 300 can be mainly applied to the following two situations: 1. The annulus fibrosus 200 needs to be removed at the position of the notch for direct sealing of the notch. It can be understood that the edge of the annulus fibrosus 200 will protrude with age and other conditions. At this time, the protruding part needs to be removed, and the annulus fibrosus 200 after removal has a notch. The annulus fibrosus blocking device 300 can be used to block the notch. 2. When the nucleus pulposus in the vertebral body is diseased, the annulus fibrosus 200 needs to be cut to remove the diseased nucleus pulposus, and then the cut is sealed by using the annulus fibrosus blocking device 300. Of course, in other embodiments, the annulus fibrosus blocking device 300 can also be used in other situations where the annulus fibrosus 200 needs to be blocked.

[0042] The first clamping assembly 21 comprises a first clamping piece 211 and a second clamping piece 212, one of the first clamping piece 211 and the second clamping piece 212 is fixed on the frame body 1, and the other of the first clamping piece 211 and the second clamping piece 212 is movably arranged on the frame body 1. The first clamping piece 211 and the second clamping piece 212 can be close to each other to clamp the annulus fibrosus 200, or the first clamping piece 211 and the second clamping piece 212 can be away from each other to release the annulus fibrosus 200.

[0043] Optionally, the first clamping piece 211 is movable and located in front of the second clamping piece 212, or the first clamping piece 211 is movable and located behind the second clamping piece 212.

[0044] Specifically, as shown in Figure 1 and Figure 2 , the first clamping piece 211 is movable and located behind the second clamping piece 212. The first clamping piece 211 moves towards the second clamping piece 212 to clamp the annulus fibrosus 200 by the first clamping piece 211 and the second clamping piece 212, so as to realize the clamping of the annulus fibrosus 200 by the first clamping assembly 21. The first clamping piece 211 moves away from the second clamping piece 212 to release the annulus fibrosus 200 by the first clamping piece 211 and the second clamping piece 212, so as to realize the release of the annulus fibrosus 200 by the first clamping assembly 21.

[0045] It should be noted that the movable includes movement and rotation. For example, the first clamping piece 211 is movably arranged on the frame body 1. When the annulus fibrosus 200 needs to be clamped, the first clamping piece 211 is moved towards the second clamping piece 212 to clamp the annulus fibrosus 200 by the first clamping piece 211 and the second clamping piece 212, so as to realize the blocking function of the annulus fibrosus 200.

[0046] The driving assembly is arranged on the frame body 1, and is connected with the other one of the first clamping member 211 and the second clamping member 212 to drive the other one of the first clamping member 211 and the second clamping member 212 to move.

[0047] Specifically, as shown in Figure 1 and Figure 2 , the driving assembly is connected with the first clamping member 211, and the driving assembly can drive the first clamping member 211 to rotate or move to clamp or release the fiber ring 200.

[0048] That is, the fiber ring sealing device 300 of the embodiment of the present application can clamp the fiber ring 200 by controlling the driving assembly to drive the first clamping assembly 21, and after the fiber ring sealing device 300 clamps the fiber ring 200, the position of the driving assembly is fixed, which ensures the stability of the clamping of the first clamping member 211 and the second clamping member 212, and realizes the stable fixation of the fiber ring sealing device 300 at the gap position of the fiber ring 200, thereby avoiding slipping.

[0049] Therefore, the fiber ring sealing device of the embodiment of the present application has the advantages of simple operation and good stability.

[0050] In some embodiments, the fiber ring sealing device 300 further comprises a second clamping assembly 22, and the second clamping assembly 22 and the first clamping assembly 21 are oppositely arranged on the frame body 1 and can clamp the two free ends of the fiber ring 200, respectively. Figure 4 As shown in , the second clamping assembly 22 and the first clamping assembly 21 are arranged on the left and right sides of the frame body 1, and the first clamping assembly 21 is located on the left side of the frame body 1.

[0051] Figure 1 As shown in , the second clamping assembly 22 comprises a third clamping member 221 and a fourth clamping member 222, one of the third clamping member 221 and the fourth clamping member 222 is fixed on the frame body 1, and the other one of the third clamping member 221 and the fourth clamping member 222 is movably arranged on the frame body 1, and the third clamping member 221 and the fourth clamping member 222 can be close to each other to clamp the fiber ring 200 or the third clamping member 221 and the fourth clamping member 222 can be away from each other to release the fiber ring 200.

[0052] Figure 1 and Figure 2As shown, the third clamping member 221 is movable and is located behind the fourth clamping member 222. The third clamping member 221 moves towards the fourth clamping member 222 to clamp the fiber ring 200 by the third clamping member 221 and the fourth clamping member 222, so as to clamp the fiber ring 200 by the second clamping assembly 22. The third clamping member 221 moves away from the fourth clamping member 222 to release the fiber ring 200 by the third clamping member 221 and the fourth clamping member 222, so as to release the fiber ring 200 by the second clamping assembly 22.

[0053] The driving assembly is connected with the other one of the third clamping member 221 and the fourth clamping member 222, so as to drive the other one of the third clamping member 221 and the fourth clamping member 222 to move.

[0054] Optionally, the other one of the first clamping member 211 and the second clamping member 212 is rotatably arranged on the frame 1 about a first axis, and the other one of the third clamping member 221 and the fourth clamping member 222 is rotatably arranged on the frame 1 about a second axis, and the angle between the extension direction of the first axis and the extension direction of the second axis is greater than or equal to 0 degrees and less than 90 degrees.

[0055] Specifically, as shown in Figure 1 and Figure 2 , the first clamping member 211 is rotatable about the first axis, and the third clamping member 221 is rotatable about the second axis. The driving assembly drives the first clamping member 211 and the third clamping member 221 to rotate, so that the first clamping member 211 rotates towards the second clamping member 212, and the third clamping member 221 rotates towards the fourth clamping member 222, so as to clamp the fiber ring 200, thereby achieving plugging of the fiber ring 200.

[0056] It can be understood that the extension direction of the first axis and the extension direction of the second axis can form an angle greater than or equal to 0 degrees and less than 90 degrees, that is, the extension direction of the first axis or the extension direction of the second axis can be inclined, or the extension direction of the first axis and the extension direction of the second axis are both inclined.

[0057] Preferably, as shown in Figure 1 , Figure 2 and Figure 4 , the angle between the extension direction of the first axis and the extension direction of the second axis is equal to 0 degrees, that is, the extension direction of the first axis and the extension direction of the second axis are both consistent with the up-down direction.

[0058] In some embodiments, as shown in Figure 1 and Figure 2As shown, the drive assembly includes a drive member 31 and a first push plate 32 and a second push plate 33 connected to the drive member 31. The first push plate 32 and the second push plate 33 are movably mounted on the frame 1 along the lateral direction of the frame 1. The drive member 31 can drive the first push plate 32 and the second push plate 33 to move laterally along the frame 1. The first push plate 32 is rotatably connected to a first clamping member 211 or a second clamping member 212 movably connected to the frame 1. Lateral movement of the first push plate 32 can drive the first clamping member 211 or the second clamping member 212 to rotate. The second push plate 33 is rotatably connected to a third clamping member 221 or a fourth clamping member 222 movably connected to the frame 1. Lateral movement of the second push plate 33 can drive the third clamping member 212 or the fourth clamping member 222 to rotate.

[0059] It is understandable that, such as Figure 1 and Figure 2 As shown, both the first push plate 32 and the second push plate 33 are connected to the driving member 31. That is, both the first push plate 32 and the second push plate 33 can be fixedly connected to the driving member 31 so that when the driving member 31 moves, it will drive the first push plate 32 and the second push plate 33 to move respectively. Alternatively, both the first push plate 32 and the second push plate 33 are in contact with the driving member 31. Then, the lower wall surface of the first push plate 32, the upper wall surface of the second push plate 33, and the peripheral wall surface of the driving member 31 all have a certain roughness so that when the driving member 31 rotates, the first push plate 32 and the second push plate 33 can move by relying on the friction between the lower wall surface of the first push plate 32, the upper wall surface of the second push plate 33, and the peripheral wall surface of the driving member 31.

[0060] like Figures 1-6 As shown, in some embodiments, the first clamping member 211 or the second clamping member 212, which is rotatably connected to the frame 1, is provided with a first rotating part 2112, and the first push plate 32 is in the longitudinal direction of the frame 1 (e.g., Figure 1 The first connecting part 321 is rotatably connected to the first rotating part 2112 on one side of the frame 1 in the front-back direction, so as to drive the first rotating part 2112 to rotate around the first axis; the third clamping member 221 or the fourth clamping member 222 rotatably connected to the frame 1 is provided with the second rotating part 2212; the second push plate 33 has a second connecting part 331 rotatably connected to the second rotating part 2212 on one side of the frame 1 in the longitudinal direction, so as to drive the second rotating part 2212 to rotate around the second axis.

[0061] The first clamping member 211 further comprises a first clamping portion 2111, and the first push plate 32 is connected with a first rotating portion 2112, and the connecting position of the first push plate 32 and the first rotating portion 2112 is spaced apart from the first axis (i.e., the connecting position of the first push plate 32 and the first rotating portion 2112 is eccentrically arranged relative to the first axis), so as to drive the first rotating portion 2112 to rotate around the first axis. The third clamping member 221 further comprises a second clamping portion 2211, and the second push plate 33 is connected with a second rotating portion 2212, and the connecting position of the second push plate 33 and the second rotating portion 2212 is spaced apart from the second axis (i.e., the connecting position of the second push plate 33 and the second rotating portion 2212 is eccentrically arranged relative to the second axis), so as to drive the second rotating portion 2212 to rotate around the second axis.

[0062] As shown in Figures 1-4 , the left end of the first clamping member 211 forms the first clamping portion 2111, and the right end of the first clamping member 211 forms the first rotating portion 2112. The first rotating portion 2112 has a first through hole penetrating through the first rotating portion 2112 along the up-down direction. The extension direction of the first through hole axis is consistent with the up-down direction. The frame body 1 is provided with a first shaft 13 matched with the first through hole. The extension direction of the first through hole axis, the extension direction of the first through hole axis and the extension direction of the first shaft axis coincide, so that the first clamping member 211 can rotate around the first shaft 13.

[0063] It can be understood that the first push plate 32 can be fixedly connected with the first rotating portion 2112. When the first push plate 32 is rotated, the first push plate 32 rotates around the first axis and drives the first clamping member 211 to rotate, and the first clamping member 211 rotates towards the second clamping member 212, so that the first clamping assembly 21 can clamp the fiber ring 200. Alternatively, the first push plate 32 is connected with the first rotating portion 2112 in contact. The part where the first push plate 32 and the first rotating portion 2112 are in contact has a certain roughness. When the first push plate 32 and the first rotating portion 2112 move relative to each other, the first rotating portion 2112 is driven to rotate by the friction between the part where the first push plate 32 and the first rotating portion 2112 are in contact, and the first clamping portion 2111 is driven to rotate. Similarly, the connection mode of the second push plate 33 and the second rotating portion 2212 can be set by referring to the connection mode of the first push plate 32 and the first rotating portion 2112.

[0064] It should be noted that the first shaft 13 and the second shaft 14 can be arranged on the frame body 1 in an interference fit manner to avoid loosening of the first shaft 13 and the second shaft 14 during use.

[0065] Preferably, as shown in Figure 1 and Figure 6As shown, the rear end of the first push plate 32 is a first connecting portion 321, the first rotating portion 2112 is provided with a first gear 2113 with an axis arranged along the up-down direction, the lower end of the first gear 2113 is fixedly connected with the first rotating portion 2112, and the first gear 2113 is rotationally matched with the first shaft 13, and the first connecting portion 321 is provided with a first tooth row 322 engaged with the first gear 2113; the rear end of the second push plate 33 is a second connecting portion 331, the second rotating portion 2212 is provided with a second gear 2213 with an axis arranged along the up-down direction, the upper end of the second gear 2213 is fixedly connected with the second rotating portion 2212, and the second gear 2213 is rotationally matched with the second shaft 14, and the second connecting portion 331 is provided with a second tooth row 332 engaged with the second gear 2213.

[0066] In some embodiments, as Figures 1-4 shown, the driving member 31 is rotationally arranged on the frame body 1, the first push plate 32 and the second push plate 33 are located on the two sides of the driving member 31 in the thickness direction (such as the up-down direction in Figure 1 ) of the frame body 1, and the first push plate 32 and the second push plate 33 are both connected with the outer circumferential surface of the driving member 31, and the driving member 31 can drive the first push plate 32 and the second push plate 33 to move in opposite directions along the transverse direction of the frame body 1.

[0067] Specifically, as Figure 1 and Figure 2 shown, the first push plate 32 is rotationally connected with the first clamping member 211, and the second push plate 33 is rotationally connected with the third clamping member 221, the driving member 31 is rotated, the driving member 31 drives the first push plate 32 to move to the right, the first push plate 32 drives the first clamping member 211 to rotate, and at the same time, drives the second push plate 33 to move to the left, the second push plate 33 drives the third clamping member 221 to rotate, so as to clamp the fiber ring 200.

[0068] It can be understood that the first push plate 32 is located above the second push plate 33, the lower side wall of the first push plate 32 is provided with a third tooth row 324, the upper side wall of the second push plate 33 is provided with a fourth tooth row 334, the driving member 31 is generally cylindrical, the extension direction of the axis of the driving member 31 is consistent with the front-rear direction, the axis of the driving member 31 coincides with the front-rear direction, and the circumferential wall of the driving member 31 is provided with a gear engaged with the third tooth row 324 and the fourth tooth row 334, so that when the driving member 31 rotates, the gear on the driving member 31 is matched with the third tooth row 324 and the fourth tooth row 334, thereby moving the first push plate 32 and the second push plate 33.

[0069] That is, as Figures 1-4As shown, when the driving member 31 is rotated clockwise, the first push plate 32 moves right and the second push plate 33 moves left by the cooperation of the gear on the driving member 31 with the third and fourth tooth rows 324 and 334, and the first clamping member 211 rotates towards the second clamping member 212 by the cooperation of the first tooth row 322 with the first gear 2113, and the third clamping member 221 rotates towards the fourth clamping member 222 by the cooperation of the second tooth row 332 with the second gear 2213, so as to realize that the first clamping assembly 21 clamps one side of the annulus fibrosus 200 at the gap and the second clamping assembly 22 clamps the other side of the annulus fibrosus 200 at the gap. Conversely, when the driving member 31 is rotated counterclockwise, the function of the annulus fibrosus plugging device 300 of the embodiment of the application is realized to release the annulus fibrosus 200.

[0070] In some embodiments, the first push plate 32 and the second push plate 33 each include an extension, and the two extensions are located at the two sides of the driving member 31 in the transverse direction of the frame 1, and each of the two extensions has a sharp end extending in the transverse direction of the frame 1.

[0071] Specifically, as shown in Figs. 3 and 4, the extension includes a first extension 323 and a second extension 333, the first extension 323 is arranged at the right end of the first push plate 32, the upper wall surface of the first extension 323 is flush with the upper wall surface of the first push plate 32, and the second extension 333 is arranged at the left end of the second push plate 33, and the upper wall surface of the second extension 333 is flush with the lower wall surface of the second push plate 33. Figure 1 、 Figure 2 and Figure 6

[0072] It can be understood that the right end of the first extension 323 forms a first sharp end, and the left end of the second extension 333 forms a second sharp end, and when the driving member 31 is rotated clockwise, the driving member 31 drives the first push plate 32 to move right, so that the first sharp end extends out of the frame 1 and is inserted into the annulus fibrosus 200, and at the same time, the driving member 31 drives the second push plate 33 to move left, so that the second sharp end extends out of the frame 1 and is inserted into the annulus fibrosus 200, so as to improve the supporting effect of the annulus fibrosus plugging device 300 of the embodiment of the application.

[0073] In some embodiments, the annulus fibrosus plugging device 300 of the embodiment of the application further includes at least two needles, and the at least two needles are movably arranged on the frame 1 in the thickness direction of the frame 1, and each of the two extensions has an inclined surface, and the two inclined surfaces are oppositely arranged and respectively cooperate with at least one needle to drive the needle to extend out of the frame 1 and connect with the endplate of the vertebral body 100.

[0074] Among them, the first extension 323 has a first inclined surface 3231, at least part of the first inclined surface 3231 faces the second push plate 33, and the second extension 333 has a second inclined surface 3331, at least part of the second inclined surface 3331 faces the first push plate 32. ​

[0075] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , the top needle includes a first top needle 41 and a second top needle 42, the lower end of the first top needle 41 is a first tail end, the first tail end is in contact with the second inclined surface 3331, and the upper end (i.e. the first needle end) of the first top needle 41 is in the shape of a triangular pointed end, which is convenient for inserting into the end plate of the vertebral body 100; the upper end of the second top needle 42 is a second tail end, the second tail end is in contact with the first inclined surface 3231, and the lower end (i.e. the second needle end) of the second top needle 42 is in the shape of a triangular pointed end, which is convenient for inserting into the end plate of the vertebral body 100.

[0076] It can be understood that when the clockwise driving member 31 drives the second push plate 33 to move to the left, the second inclined surface 3331 moves the first top needle 41, that is, the second push plate 33 moves to the left to drive the second inclined surface 3331 to move to the left, so that the first top needle 41 moves upward, and the second top needle 42 moves downward by the same principle. Therefore, when plugging the gap of the annulus fibrosus 200, the first needle end of the first top needle 41 moving upward can be inserted into the end plate of the adjacent vertebral body 100, and the second needle end of the second top needle 42 moving downward can be inserted into the end plate of the adjacent vertebral body 100. At this time, the first pointed end and the second pointed end are inserted into the annulus fibrosus 200, and the first needle end and the second needle end are inserted into the end plate of the vertebral body 100, thereby further improving the supporting effect of the annulus fibrosus plugging device 300 of the embodiment of the application.

[0077] It should be noted that adjusting the included angle between the first inclined surface 3231 and the upper wall surface of the first protruding portion 323 can change the depth of the second top needle 42 inserted into the end plate of the adjacent vertebral body 100, that is, the greater the included angle between the first inclined surface 3231 and the upper wall surface of the first protruding portion 323, the deeper the depth of the second top needle 42 inserted into the end plate of the adjacent vertebral body 100. By the same principle, the greater the included angle between the second inclined surface 3331 and the lower wall surface of the second protruding portion 333, the deeper the depth of the first top needle 41 inserted into the end plate of the adjacent vertebral body 100.

[0078] As shown in Figure 1 , Figure 2 and Figure 6 , the first protruding portion 323 is further provided with a first notch, the first notch penetrates the first protruding portion 323 in the up-down direction, the first notch is a U-shaped opening, and the opening of the first notch faces the right. The first protruding portion 323 is provided with the first notch to reduce the area of the first pointed end, so that when the first push plate 32 moves to the right, the contact area between the first pointed end and the annulus fibrosus 200 is reduced, and the first pointed end is more easily inserted into the annulus fibrosus 200. By the same principle, the second protruding portion 333 is provided with a second notch, the second notch penetrates the second protruding portion in the up-down direction, the second notch is a U-shaped opening, and the opening of the second notch faces the left, so that when the second push plate 33 moves to the left, the second pointed end is more easily inserted into the annulus fibrosus 200.

[0079] As shown in Figure 1 , Figure 2 and Figure 4 , the left end of the first push plate 32 is provided with a first avoiding opening, which is a U-shaped opening and penetrates the first push plate 32 in the up-down direction. The driving member 31 is rotated clockwise, the first push plate 32 moves to the right, and the first pointed end of the first push plate 32 is inserted into the fiber ring 200, and then part of the first thimble 41 is separated from the first avoiding opening; the driving member 31 is rotated counterclockwise, the first push plate 32 moves to the right by a certain distance, the middle part of the first thimble 41 contacts the inner wall surface of the first avoiding opening, and at the same time, the first avoiding opening can limit the leftward movement of the first push plate 32, which is beneficial to the retraction of the first push plate 32. Similarly, the right end of the second push plate 33 is provided with a second avoiding opening, which is a U-shaped opening and penetrates the second push plate 33 in the up-down direction, which is beneficial to the retraction of the second push plate 33.

[0080] In some embodiments, the driving member 31 comprises an operation part 311, which is arranged at the end of the driving member 31 away from the frame body 1. An annular groove 3111 is formed on the outer circumferential surface of the operation part 311 and arranged along the circumferential direction of the operation part 311. The frame body 1 is provided with an anti-back convex 11 matched in the annular groove 3111. The end surface of the operation part 311 away from the frame body 1 is provided with a control groove 3112, which penetrates the operation part 311 along the radial direction of the operation part 311. When the control groove 3112 corresponds to the anti-back convex 11, the driving member 31 is close to or away from the frame body 1 along the longitudinal direction of the frame body 1.

[0081] Specifically, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the operation part 311 is arranged at the front end of the driving member 31, and the control groove 3112 is a cross-shaped groove, wherein the cross end of the cross-shaped groove penetrates the circumferential wall surface of the operation part 311, so as to facilitate the operator to use a tool matched with the cross-shaped groove to drive the driving member 31 to rotate.

[0082] It can be understood that the anti-back convex 11 is matched in the annular groove 3111 of the operation part 311, which can limit the movement of the driving member 31 in the front-back direction. Therefore, rotating the driving member 31 can improve the stability of the driving member 31 through the cooperation of the anti-back convex 11 and the annular groove 3111.

[0083] It should be noted that, as shown in Figure 3 , Figure 4 , Figure 8 and Figure 9 ,As shown, before clamping the fiber ring 200, the first clamping assembly 21 and the second clamping assembly 22, the anti-back protrusion 11 is fitted in the annular groove 3111, and the part of the operation portion 311 is placed outside the fiber ring sealing device 300 (i.e. the front part of the operation portion 311 is placed outside the fiber ring sealing device 300). After the first clamping assembly 21 and the second clamping assembly 22 clamp the fiber ring 200, the operator can press the driving member 31, and the driving member 31 moves backward, and the operation portion 311 can overcome the resistance of the limiting protrusion 11 to move the driving member 31 into the frame 1. At this time, the rear end of the anti-back protrusion 11 abuts against the front end surface of the operation portion 311, preventing the front part of the operation portion 311 from being placed outside the fiber ring sealing device 300, so as to avoid the rotation of the driving member 31 due to accidental touch of the operation portion 311, and further avoid the loosening of the first clamping assembly 21 and the second clamping assembly 22.

[0084] Alternatively, the anti-back protrusion 11 can be annular, or can be formed by a plurality of arc-shaped segments, and of course, can be in other forms, i.e. can ensure that the anti-back protrusion 11 is fitted in the annular groove 3111, and can ensure that when the driving member 31 moves backward, the operation portion 311 can overcome the resistance of the limiting protrusion 11 to move the driving member 31 into the frame 1.

[0085] In some embodiments, the driving member 31 further comprises a locking block 3113 and a plurality of locking grooves 12, the locking block 3113 is arranged on one of the operation portion 311 and the frame 1, and the plurality of locking grooves 12 are arranged on the other one of the operation portion 311 and the frame 1, the plurality of locking grooves 12 are uniformly and spacedly arranged along the circumference of the driving member 31, and the locking block 3113 is fitted in one of the locking grooves 12 to limit the rotation of the driving member 31.

[0086] Specifically, as shown in Figure 4 and Figure 5 the plurality of locking grooves 12 are arranged on one side of the frame 1 adjacent to the operation portion 311, and when the locking block 3113 is fitted in one of the locking grooves 12, the rotation of the driving member 31 can be limited, so as to avoid the loosening of the first clamping assembly 21 and the second clamping assembly 22 due to the rotation of the driving member 31 after clamping the fiber ring 200, and to ensure the stability of the first clamping assembly 21 and the second clamping assembly 22 in clamping the fiber ring 200. In the embodiment, two locking blocks 3113 are symmetrically arranged about the axis of the driving member 31, and in other embodiments, the number of the locking blocks 3113 can be appropriately increased or decreased.

[0087] It can be understood that after the first clamping assembly 21 and the second clamping assembly 22 clamp the fiber ring 200, the driving member 31 is moved backward, the locking block 3113 can be matched with the locking groove 12, and when the locking block 3113 is matched with the locking groove 12, the driving member 31 is located in the frame body 1, the rear end of the anti-back protrusion 11 is in abutment with the front end surface of the operation part 311, the erroneous operation of the driving member 31 can be avoided, and the rotation of the driving member 31 is limited, and the stability of the fiber ring plugging device 300 in the embodiment of the application is further improved.

[0088] In some embodiments, as shown in Figure 2 and Figure 3 , the frame body 1 is provided with a plurality of first tooth nails 51 on the side facing the inside of the fiber ring 200, and the plurality of first tooth nails 51 are arranged at intervals; and / or the first clamping part 211, the second clamping part 212, and the third clamping part 221 and the fourth clamping part 222 are provided with at least one second tooth nail 52 on the side facing the fiber ring 200.

[0089] Among them, the first tooth nail 51 includes a first tooth tip and a first tooth tail, the first tooth tail is arranged on the side of the frame body 1 away from the driving member 31, the plurality of first tooth nails 51 are arranged at intervals along the transverse direction of the frame body 1, the plurality of first tooth nails 51 form a first tooth nail group, there are a plurality of first tooth nail groups, and the plurality of first tooth nail groups are arranged at intervals along the thickness direction of the frame body.

[0090] Specifically, as shown in Figure 2 and Figure 3 , the first tooth nail 51 is arranged on the rear end surface of the frame body 1, so that when the fiber ring plugging device 300 in the embodiment of the application is plugged, the first tooth tips of the plurality of first tooth nails 51 are inserted into the adjacent parts, so as to improve the stability.

[0091] The second tooth nail 52 includes a second tooth tip and a second tooth tail, the second tooth tail is arranged on the side of the first clamping part 211 and the second clamping part 212 and the third clamping part 221 and the fourth clamping part 222 adjacent to the frame body 1, there are a plurality of second tooth nails 52, the plurality of second tooth nails 52 are arranged at intervals along the transverse direction of the frame body 1, the plurality of second tooth nails 52 form a second tooth nail group, there are a plurality of second tooth nail groups, and the plurality of tooth nail groups are arranged at intervals along the thickness direction of the frame body 1.

[0092] Preferably, the first clamping part 211 and the second clamping part 212 are provided with a plurality of second tooth nail groups on the side adjacent to the frame body 1; the third clamping part 221 and the fourth clamping part 222 are provided with a plurality of second tooth nail groups on the side adjacent to the frame body 1, and when the first clamping assembly 21 and the second clamping assembly 22 clamp, the second tooth nails 52 in the second tooth nail group can be inserted into the fiber ring 200, so as to improve the stability of the first clamping assembly 21.

[0093] It should be noted that, as shown in Figure 1 andFigure 4 As shown, the first clamping piece 211, the second clamping piece 212, the third clamping piece 221 and the fourth clamping piece 222 are all provided with a second notch, taking the first clamping piece 211 as an example, the second notch is U-shaped, the opening of the second notch is generally towards the left, the second notch penetrates the first clamping part 2111, and the first clamping piece 211 is provided with the second notch, which can reduce the contact area of the first clamping part 2111 on the first clamping piece 211 and the annulus fibrosus 200, and reduce the contact area of the second toothed nail 52 and the annulus fibrosus 200, which can facilitate the second tooth tip of the second toothed nail 52 to be inserted into the annulus fibrosus 200.

[0094] In use, as shown, Figures 1-9 In the initial state, the anti-back protrusion 11 on the frame body 1 is matched in the annular groove 3111 of the operation part 311, after the tool matched with the control groove 3112 is inserted into the control groove 3112, the drive part 31 is rotated clockwise through the tool, the drive part 31 is rotated and matched with the third tooth row 324 of the first push plate 32 and the fourth tooth row 334 of the second push plate 33 through the gear of the drive part 31, so that the first push plate 32 moves to the right and the second push plate 33 moves to the left. While the first push plate 32 moves to the right, the first protruding part 323 moves to the right and is inserted into the adjacent annulus fibrosus 200, the first inclined surface 3231 of the first protruding part 323 is matched with the second thimble 42, so that the second thimble 42 moves downward and is inserted into the adjacent end plate of the vertebral body 100, the first tooth row 322 of the first push plate 32 is matched with the first gear 2113 of the first clamping piece 211, so that the first clamping piece 211 rotates to the direction close to the second clamping piece 212, to realize the clamping function of the first clamping assembly 21; while the second push plate 33 moves to the left, the second protruding part 333 moves to the left and is inserted into the adjacent annulus fibrosus 200, the second inclined surface 3331 of the second protruding part 333 is matched with the first thimble 41, so that the first thimble 41 moves upward and is inserted into the adjacent end plate of the vertebral body 100, the second tooth row 332 of the second push plate 33 is matched with the second gear 2213 of the third clamping piece 221, so that the third clamping piece 221 rotates to the direction close to the fourth clamping piece 222, to realize the clamping function of the second clamping assembly 22.

[0095] After the first clamping assembly 21 and the second clamping assembly 22 clamp the annulus fibrosus 200, the drive part 31 can be moved backward by using a tool, so that the locking block 3113 is matched in the locking groove 12, to realize the locking function of the drive part 31, and at the same time, the anti-back protrusion 11 is abutted on the outer end surface of the operation part 311, at this time, the annulus fibrosus plugging device 300 of the embodiment of the application is in the locked state.

[0096] In the description of the application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0097] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0098] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0099] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0100] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0101] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. An annulus plugging device, characterized by The device comprises: a frame body; a first clamping assembly comprising a first clamping member and a second clamping member, one of the first clamping member and the second clamping member being fixed on the frame body, the other being movably arranged on the frame body, the first clamping member and the second clamping member being capable of moving towards each other to clamp a fiber ring or moving away from each other to release the fiber ring; a driving assembly arranged on the frame body, the driving assembly being connected with the other of the first clamping member and the second clamping member to drive the other of the first clamping member and the second clamping member to move; the fiber ring plugging device further comprises a second clamping assembly, the second clamping assembly and the first clamping assembly being oppositely arranged on the frame body and being capable of clamping two free ends of the fiber ring respectively; the second clamping assembly comprises a third clamping member and a fourth clamping member, one of the third clamping member and the fourth clamping member being fixed on the frame body, the other being movably arranged on the frame body, the third clamping member and the fourth clamping member being capable of moving towards each other to clamp a fiber ring or moving away from each other to release the fiber ring; the driving assembly being connected with the other of the third clamping member and the fourth clamping member to drive the other of the third clamping member and the fourth clamping member to move.

2. The annulus plugging device of claim 1, wherein, the driving assembly comprises a driving member and a first push plate and a second push plate connected with the driving member, the first push plate and the second push plate being movably arranged on the frame body along the transverse direction of the frame body, the driving member being capable of driving the first push plate and the second push plate to move along the transverse direction of the frame body; the first push plate being rotationally connected with the first clamping member or the second clamping member movably connected with the frame body, the first push plate moving along the transverse direction being capable of driving the first clamping member or the second clamping member to rotate; the second push plate being rotationally connected with the third clamping member or the fourth clamping member movably connected with the frame body, the second push plate moving along the transverse direction being capable of driving the third clamping member or the fourth clamping member to rotate.

3. The annulus plugging device of claim 2, wherein, the first clamping member or the second clamping member movably connected with the frame body being provided with a first rotating part, one side of the first push plate in the longitudinal direction of the frame body being provided with a first connecting part rotationally connected with the first rotating part to drive the first rotating part to rotate; the third clamping member or the fourth clamping member movably connected with the frame body being provided with a second rotating part, one side of the second push plate in the longitudinal direction of the frame body being provided with a second connecting part rotationally connected with the second rotating part to drive the second rotating part to rotate.

4. The annular fibrous ring closure device according to claim 2, characterized in that the driving member being rotationally arranged on the frame body, the first push plate and the second push plate being located on two sides of the driving member in the thickness direction of the frame body, and the first push plate and the second push plate both being connected with the outer circumferential surface of the driving member, the driving member being capable of driving the first push plate and the second push plate to move in opposite directions along the transverse direction of the frame body.

5. The annular fibrous ring closure device according to claim 4, characterized in that The first push plate and the second push plate each comprise an extension, two of the extensions are located on both sides of the driving member in the lateral direction of the frame body, and the two extensions each have a tip extending in the lateral direction of the frame body.

6. The annular fibrous ring closure device according to claim 5, characterized in that Further comprising at least two top pins, the at least two top pins are movably arranged on the frame body in the thickness direction of the frame body, the two extensions each have a slope, and the two slopes are oppositely arranged and respectively cooperate with at least one of the top pins to drive the top pin to extend out of the frame body and connect with the endplate of the vertebral body.

7. The annular fibrous ring closure device according to claim 4, wherein, The driving member comprises an operation portion, the operation portion is arranged at one end of the driving member away from the frame body, an outer circumferential surface of the operation portion is provided with an annular groove, and the frame body is provided with an anti-back convex for being matched in the annular groove.

8. The annular fibrous ring closure device according to claim 7, characterized in that The driving member further comprises a locking block and a plurality of locking grooves, the locking block is arranged on one of the operation portion and the frame body, the plurality of locking grooves are arranged on the other one of the operation portion and the frame body, the plurality of locking grooves are uniformly and spacedly arranged in the circumferential direction of the driving member, and the locking block cooperates with one of the locking grooves to limit the rotation of the driving member.

9. The annulus plugging device according to any one of claims 1-8, wherein, A plurality of first tooth nails are arranged on one side of the frame body facing the inside of the annular fibrous tissue; And / or, at least one second tooth nail is arranged on one side of the first clamping member, the second clamping member, the third clamping member and the fourth clamping member facing the annular fibrous tissue.

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