An annulus fibrosus suture device

Abstract

The present invention discloses an annulus fibrosus suturing device, belonging to the technical field of medical devices, and solving the technical problems of long suturing time and poor adaptability of the annulus fibrosus suturing device in the prior art. It includes a suture needle assembly, and the suture needle assembly includes a puncturing member and a clamping seat; the puncturing member includes a shuttle, and a push rod, a grasping rod, a puncture needle and a sheath tube which are sleeved from the inside to the outside, and the shuttle is used for clamping a suture; a suture needle control assembly, which is used for enabling the puncturing member to drive the suture to penetrate from the first side of the material to the second side, and then penetrate from the second side at another position of the material to the first side; the clamping seat is used for receiving the shuttle on the second side of the material; a handle housing, which is used for fixing the suture needle assembly and the suture needle control assembly, and includes a fixing part and a movable part movably connected to the fixing part. The annulus fibrosus suturing device of the present invention can meet more demand scenarios, improve the suture success rate or shorten the suturing time.

Description

Technical Field

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

[0002] Lumbar disc herniation is a comprehensive symptom caused by disc degeneration, rupture of the annulus fibrosus, and protrusion of the nucleus pulposus stimulating or compressing the nerve root. During the operation, the annulus fibrosus needs to be incised, and the nucleus pulposus is removed at the rupture of the annulus fibrosus. After the operation, the incision of the annulus fibrosus needs to be sutured to reduce the possibility of recurrence of lumbar disc herniation after the operation.

[0003] In the related art, a disposable annulus fibrosus suture device can be used to suture the annulus fibrosus. Generally, the disposable annulus fibrosus suture device includes the following categories: First, the disposable annulus fibrosus suture device is first inserted into the surgical channel to pass a suture thread through one side of the incision, and then the disposable annulus fibrosus suture device is replaced and inserted into the surgical channel again to pass a suture thread through the other side of the incision. Finally, the two suture threads are knotted and fixed. In this way, the interval time between passing the two suture threads is long, occupying the operation time. Second, there is a suture device with a straight needle and a curved needle. However, the problem with it is that the needle spacing between the two needles and the direction of targeted suturing are fixed. During the operation, it is almost impossible to control the positions of the two needles on both sides of the incision, and the relative direction of suturing of the two needles cannot be adjusted. This results in the need for different specifications of annulus fibrosus suture devices for different types of annulus fibrosus wounds or incisions, and for irregular wounds, the suturing may fail due to the collapse of the soft tissues at the incision edge.

[0004] It can be seen that there is a need to provide an improved disposable annulus fibrosus suture device to meet more demand scenarios (small-area trauma, large-area trauma, etc.), improve the suturing success rate or shorten the suturing time. Summary of the Invention

[0005] In view of the technical problems in the background art, the present solution provides a disposable annulus fibrosus suture device, which can drive the suture thread to rotate within the annulus fibrosus wound, and during the rotation process, can drive the suture thread to penetrate into and out of the wound, forming a purse-string suture pattern around the wound, which can meet the suturing of both small-area trauma and large-area trauma, and does not require changing different suture devices during the suturing process, and can shorten the suturing time.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An annulus fibrosus suture device provided by the present invention includes:

[0008] Suture needle assembly, the suture needle assembly includes a piercing member, a clamping seat and a sheath tube, the piercing member is movably arranged in the sheath tube, and the clamping seat is movably arranged at the distal end of the sheath tube; the front end of the piercing member is releasably connected to a shuttle, and a suture is arranged on the shuttle.

[0009] Suture needle control assembly, the suture needle control assembly is used to control the movement of the piercing member to clamp or release the shuttle, so as to drive the suture to penetrate from the first side of the first position of the annulus fibrosus to the second side, and penetrate from the second side of the second position of the annulus fibrosus to the first side, wherein the clamping seat is used to clamp the shuttle on the second side of the annulus fibrosus when the shuttle is released.

[0010] Handle housing, the handle housing is used to accommodate the suture needle assembly and the suture needle control assembly, and it includes a fixed part and a movable part movably connected to the fixed part.

[0011] Optionally or preferably, the piercing member includes a push rod, a grasping rod and a piercing needle sleeved from the inside out in sequence, and the shuttle is releasably connected to the distal end of the grasping rod.

[0012] A plurality of protrusions are arranged at the distal end of the push rod, and a blocking part is arranged at the proximal end.

[0013] A plurality of windows are symmetrically arranged along the circumference at the distal end of the grasping rod, a plurality of slits are axially opened, and a plurality of deep grooves are opened on the inner wall of the distal end, and the depths of the plurality of deep grooves decrease in a gradient manner from the proximal end to the distal end.

[0014] The distal end of the piercing needle is set as a blade part.

[0015] Optionally or preferably, the suture needle assembly further includes a movable rod, the movable rod includes a head, a rod part and a bent neck, and the head and the rod part are arranged in parallel.

[0016] One end of the clamping seat is pivotally connected to one end of the sheath tube, and the middle upper part of the clamping seat is connected to the head through a connecting piece.

[0017] A through hole is opened in the lower part of the clamping seat, and a plurality of first elastic pieces are arranged on the side wall of the through hole. The first elastic piece includes a first outward expansion part, a narrowing part and a second outward expansion part connected in sequence.

[0018] A ridge is arranged inside the through hole, and a plurality of inclined surfaces and chamfers are arranged on the ridge.

[0019] The shuttle includes a conical passing part, an annular part and a clamping part. A plurality of ears protruding radially outward are symmetrically arranged on the clamping part, and inclined surfaces inclined towards the center are formed on the ears.

[0020] Optionally or preferably, the suture needle control assembly includes a clamping seat moving control member, which includes a knob, a rotating rod, a transmission rod and a transmission block;

[0021] The knob is fixedly connected to the upper end of the rotating rod. A plurality of knob bumps are arranged on the outer circumferential surface of the knob, and a corresponding plurality of second card slots are arranged on the inner surface of the handle housing. The knob bumps are in fit connection with the second card slots; A first spring is sleeved on one side of the rotating rod close to the knob, and the first spring is used to provide an axial elastic force to the knob;

[0022] Both ends of the transmission rod are respectively connected to the rotating rod and the transmission block, and the middle part of the transmission rod is rotatably connected to the inner side wall of the handle housing through a cross column.

[0023] Optionally or preferably, a second notch is provided at the lower part of the rotating rod, a through groove is provided on the transmission block, one end of the transmission rod is clamped in the second notch and the other end is clamped in the through groove;

[0024] One end of the transmission block is fixedly connected to the movable rod, and the other end is movably clamped in the handle housing through a guide block. A second spring is sleeved on the guide block, and the second spring is used to provide an axial elastic force to the transmission block.

[0025] Optionally or preferably, the suture needle control assembly further includes a suture needle rotation control member, which includes a ratchet wheel, a one-way rotating rod and a puncture needle guide member;

[0026] The ratchet wheel is fixedly connected to the fixed part, and the puncture needle guide member is arranged in the ratchet wheel and is clamped with the movable part;

[0027] One end of the one-way rotating rod is fixedly connected to the movable part, and the other end is clamped into the ratchet teeth of the ratchet wheel. A third spring is arranged at the lower part of the one-way rotating rod, and the third spring is used to provide an elastic force to the one-way rotating rod;

[0028] A plurality of marking blocks are arranged on the outer side wall of the movable part. The positions of the marking blocks are the same as the number of ratchet teeth of the ratchet wheel, and the setting positions correspond one by one.

[0029] Optionally or preferably, the suture needle control assembly further includes a suture needle telescopic control member, which includes a first button, a second button and a push tube;

[0030] An opening is provided on the handle housing. The first button is movably arranged within the opening. Two elastic pieces are arranged on both sides of the first button, and the elastic pieces are used to clamp the first button at both ends of the opening. The lower part of the first button is fixedly connected to the proximal end of the puncture needle and is used to control the telescopic movement of the puncture needle.

[0031] The second button and the push tube are respectively used to control the telescopic movement of the push rod and the grasping rod.

[0032] Optionally or preferably, a first clamping strip is movably connected to the inner wall of the fixing part. The push tube is movably arranged within the fixing part and is connected with a second clamping strip. A fourth spring is arranged below the first clamping strip, and the fourth spring is used to provide an upward elastic force to the first clamping strip.

[0033] The second clamping strip is arranged at the front end of the push tube. When the push tube moves forward, the first clamping strip contacts the second clamping strip and forms a clamped state.

[0034] Optionally or preferably, a box-shaped platform is arranged within the push tube. A guide groove block is arranged within the box-shaped platform, and the guide groove block is connected to the box-shaped platform through a pull rod.

[0035] The proximal end of the push rod sequentially passes through the push tube and the box-shaped platform and abuts against one end of the guide groove block. A fifth spring is arranged outside the push rod and between the inner wall of the box-shaped platform and the guide groove block. The other end of the guide groove block is fixedly connected to the second button.

[0036] The blocking part is located between the push tube and the box-shaped platform, and a seventh spring is arranged between the blocking part and the inner side of the end face of the push tube.

[0037] Optionally or preferably, a heart-shaped guide groove is arranged on the guide groove block. The heart-shaped guide groove includes multiple sloped groove bodies, and a first step is arranged between adjacent groove bodies. A clamping block with a groove is arranged in the middle of the heart-shaped guide groove. One end of the pull rod is fixedly connected to the box-shaped platform, and the other end is movably clamped within the heart-shaped guide groove.

[0038] A protruding second step is arranged on the outer side of the push tube, and a protruding third step is arranged on the inner wall of the fixing part. A sixth spring is arranged between the second step and the third step, and the sixth spring is used to provide an axial elastic force to the push tube.

[0039] Based on the above technical solutions, the present invention can at least produce the following technical effects:

[0040] The annulus fibrosus suture device provided by the present invention can not only meet the suture of small-area wounds but also meet the suture of large-area wounds, and there is no need to replace the suture device during the suture process, thereby being able to improve the suture success rate and shorten the suture time. Description of the Drawings

[0041] Figure 1 is the overall structural schematic diagram of the annulus fibrosus suturing device of the present invention;

[0042] Figure 2 is the partial structural schematic diagram of the suture needle assembly in the annulus fibrosus suturing device of the present invention;

[0043] Figure 3 is the structural schematic diagram of the distal end of the puncture needle of the suture needle assembly in the annulus fibrosus suturing device of the present invention;

[0044] Figure 4 is the structural schematic diagram of the cooperation of the shuttle - push rod - grasping rod in the annulus fibrosus suturing device of the present invention;

[0045] Figure 5 is the structural schematic diagram of the shuttle in the annulus fibrosus suturing device of the present invention;

[0046] Figure 6 is the structural schematic diagram of the distal end of the grasping rod in the annulus fibrosus suturing device of the present invention;

[0047] Figure 7 is the structural schematic diagram of the distal end of the push rod in the annulus fibrosus suturing device of the present invention;

[0048] Figure 8 is the structural schematic diagram of the connection between the clamping seat and the connecting member in the annulus fibrosus suturing device of the present invention;

[0049] Figure 9 is the structural schematic diagram of the first elastic piece in the annulus fibrosus suturing device of the present invention;

[0050] Figure 10 is the schematic diagram of the internal structure of the handle housing of the annulus fibrosus suturing device of the present invention Figure 1 ;

[0051] Figure 11 is Figure 10 the partial enlarged schematic diagram of part A in;

[0052] Figure 12 is the schematic diagram of the internal structure of the handle housing of the annulus fibrosus suturing device of the present invention Figure 2 ;

[0053] Figure 13 is Figure 12 the partial enlarged schematic diagram of part B in;

[0054] Figure 14 is Figure 12 the partial enlarged schematic diagram of part C in;

[0055] Figure 15 is the schematic diagram of the internal structure of the handle housing of the annulus fibrosus suturing device of the present invention Figure 3 (the outer wall of the push cylinder is omitted);

[0056] Figure 16 It is a top view of the handle housing in the annulus fibrosus suturing device of the present invention;

[0057] Figure 17 It is a schematic diagram of the internal structure of the guide box-shaped platform in the annulus fibrosus suturing device of the present invention;

[0058] Figure 18 It is a schematic diagram of the structure of the guide groove block in the annulus fibrosus suturing device of the present invention;

[0059] Figure 19 It is a state diagram of the annulus fibrosus suturing device of the present invention before it extends into the annulus fibrosus wound;

[0060] Figure 20 It is a state diagram of the annulus fibrosus suturing device of the present invention when the clamping seat bends 90° and the shuttle is fired into the annulus fibrosus wound after the device extends into the annulus fibrosus wound;

[0061] Figure 21 It is a state diagram of the annulus fibrosus suturing device of the present invention when the push rod and the grasping rod are retracted and the shuttle and the suture remain in the clamping seat;

[0062] Figure 22 It is a state diagram of the annulus fibrosus suturing device of the present invention when the clamping seat, the shuttle and the suture are rotated by an angle.

[0063] In the figure: 100, suture needle assembly; 110, shuttle; 111, conical penetration part; 112, annular part; 113, clamping part; 1131, ear part; 1132, inclined surface; 120, push rod; 121, protruding part; 123, blocking part; 130, grasping rod; 131, window; 132, deep groove; 133, notch one; 140, clamping seat; 141, first elastic piece; 1411, first outward expansion part; 1412, narrowing part; 1413, second outward expansion part; 142, through part; 143, ridge; 150, puncture needle; 160, sheath tube; 161, first opening; 171, head; 172, rod part; 180, suture; 190, connecting piece; 191, connecting rod one; 192, connecting rod two; 200, suture needle control assembly; 210, clamping seat movable control piece; 211, knob; 2111, pinch strip; 2112, knob convex block; 212, rotating rod; 2121, notch two; 213, transmission rod; 214, transmission block; 215, first spring; 216, second spring; 217, cross column; 218, guide block; 220, suture needle rotation control piece; 221, ratchet; 222, one-way rotating rod; 223, third spring; 224, puncture needle guide piece; 230, suture needle expansion and contraction control piece; 231, first button; 2311, second elastic piece; 232, second button; 233, push tube; 2331, box-shaped platform; 2332, guide groove block; 2332a, heart-shaped guide groove; 2332b, clamping block; 2332c, step one; 2333, step two; 234, seventh spring; 235, pull rod; 236, first clamping strip; 237, second clamping strip; 238, fourth spring; 239, fifth spring; 2310, sixth spring; 300, handle housing; 310, movable part; 311, thread take-up wheel; 312, marking block; 313, second card slot; 320, fixed part; 322, opening; 323, step three. Detailed implementation mode

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0065] Embodiment

[0066] Please refer to Figure 1 , a fiber ring suture device, which is used to drive the suture 180 to rotate in the fiber ring wound, and drive the suture 180 to penetrate into and out of the wound during the rotation, so as to form a purse-string suture mode around the wound, and can meet the suture requirements of both small-area trauma and large-area trauma.

[0067] In this embodiment, the above-mentioned annulus fibrosus suture device includes a suture needle assembly 100, a suture needle control assembly 200, and a handle housing 300.

[0068] Please refer to Figures 2 to 9 , the above-mentioned suture needle assembly 100 includes a piercing member and a clamping seat 140. The piercing member includes a shuttle 110, a push rod 120, a grasping rod 130, a piercing needle 150, and a sheath 160 that are sleeved from the inside out in sequence. The shuttle 110 is used to clamp a suture 180. The end of the suture 180 is wound around a thread take-up wheel 311 inside the handle. The push rod 120 and the grasping rod 130 are used to release and clamp the shuttle 110. One end of the piercing needle 150 has a cutting edge and is used to pierce tissue; the sheath 160 is used to wrap the above-mentioned push rod 120, grasping rod 130, and piercing needle 150. The push rod 120, grasping rod 130, and piercing needle 150 can move inside the sheath 160, and a first opening 161 is provided on the sheath 160. Through the above-mentioned suture needle control assembly 200, the above-mentioned piercing member can extend or retract inside the first opening 161.

[0069] In this embodiment, the suture needle assembly 100 further includes a movable rod. The movable rod is connected to the clamping seat 140 and is used to control the pivoting or straightening of the clamping seat 140; specifically, the movable rod includes a head 171, a rod portion 172, and a bent neck. The head 171 and the rod portion 172 are arranged in parallel, and the bent neck is used to connect the above-mentioned head 171 and the neck 172.

[0070] Please refer to Figure 8 , the movable rod is controlled to move back and forth by the suture needle control assembly 200, thereby driving the connecting member 190 to move back and forth, and further driving the clamping seat 140 to straighten axially or pivot downward to form a 90° angle with the axis; in this embodiment, the connecting member 190 includes a first connecting rod 191 and a second connecting rod 192. One end of the first connecting rod 191 is movably connected to the clamping seat 140 through the second connecting rod 192, and the other end is fixedly connected to the movable rod.

[0071] In this embodiment, a through hole 142 is provided at the lower part of the clamping seat 140. A first elastic piece 141 is provided on each of the two side walls of the through hole 142. Please refer to Figure 9 , the first elastic piece 141 includes a first outward expansion portion 1411, a narrowing portion 1412, and a second outward expansion portion 1413 that are connected in sequence. The first elastic piece 141 is used to clamp the shuttle 110 inside the clamping seat 140; in addition, a ridge 143 facing the center of the through hole 142 is provided on the bottom surface of the through hole 142. The ridge 143 is provided with a plurality of inclined surfaces and chamfers, so as to provide a guiding function for the movement of the shuttle 110 and further fix the shuttle 110 after the shuttle 110 is clamped by the first elastic piece 141 to prevent its circumferential movement.

[0072] For ease of description and understanding, the proximal end and the distal end described in this embodiment are for the user. When the user holds the fiber ring suture device, the end close to the user is the proximal end, and the end away from the user is the distal end.

[0073] See also Figure 5 In this embodiment, the shuttle 110 includes a conical passing portion 111 at the front end, an annular portion 112 in the middle and a clamping portion 113 at the rear end, wherein the clamping portion 113 is symmetrically provided with a plurality of ears 1131 protruding radially outward, and each ear 1131 is formed with an inclined surface 1132 inclined toward the center.

[0074] When the spring piece 141 clamps the shuttle 110 , the first outward expansion portion 1411 clamps the annular portion 112 of the shuttle 110 , the narrowing portion 1412 clamps the columnar portion of the clamping portion 113 , and the second outward expansion portion 1413 helps the conical penetrating portion 111 of the shuttle 110 to smoothly enter the clamping seat 140 .

[0075] See also Figure 4 The grab bar 130 is hollow inside, and two windows 131 are symmetrically arranged at the front end of the grab bar 130 along the circumferential direction. In the initial state, the two ears 1131 of the shuttle 110 are stuck in the above-mentioned two windows 131; two deep grooves 132 are arranged along the circumferential direction on the inner surface where the grab bar 130 connects with the two windows 131, and the depth of the deep grooves 132 decreases gradually from the proximal end to the distal end.

[0076] See also Figure 6 and Figure 7 The grab rod 130 is symmetrically provided with two notches 133 arranged along the axial direction of the push rod 130 in a direction perpendicular to the two windows 131. The arrangement of multiple notches 133 makes the distal end of the grab rod 130 elastic, and the thickness of the inner surface of the front end of the grab rod 130 corresponding to the two windows 131 is thinner than that of other positions; the push rod 120 is a cylinder, and two spherical protrusions 121 are symmetrically provided on the circumferential surface of its distal end, and the two spherical protrusions 121 are in sliding contact with the above-mentioned two deep grooves 132.

[0077] It can be understood that when the push rod 120 moves from the proximal end to the distal end, the protrusion 121 can open the distal end of the grab rod 120 and release the shuttle 110; when the push rod 120 moves from the distal end to the proximal end, the distal end of the grab rod 130 recovers and can recapture the shuttle 110 with the help of the inclined surface 1132 of the shuttle 110.

[0078] See also Figure 3 In this embodiment, the interior of the puncture needle 150 is hollow, and its distal end is a blade for puncturing tissue.

[0079] Please refer to 10 to Figure 18, in this embodiment, the suture needle control assembly 200 includes a clamping seat movement control member 210, a suture needle rotation control member 220, and a suture needle telescopic control member 230.

[0080] Specifically, the above-mentioned clamping seat movement control member 210 includes a knob 211, a rotating rod 212, a transmission rod 213, and a transmission block 214; wherein the knob 211 and the rotating rod 212 are fixedly connected. Two knob bumps 2112 are symmetrically arranged on the outer peripheral surface of the knob 211. An L-shaped slot two 313 is arranged on the inner surface of the handle housing 300. The knob bumps 2112 can move in the above-mentioned L-shaped slot two 313 under the action of an external force; A first spring 215 is sleeved on one side of the rotating rod 212 close to the knob 211. A notch two 2121 may be provided at the lower part of the rotating rod 212. One end of the transmission rod 213 is clamped in the notch two 2121. The middle part of the transmission rod 213 is rotatably connected to the inner side wall of the handle housing 300 through a cross column 217. The other end of the transmission rod 213 is wedge-shaped, and one end of the wedge-shaped part is clamped into a through slot 2141 opened on the transmission block 214; One end of the transmission block 214 is fixedly connected to the movable rod, and the other end is movably clamped in the handle housing 300 through a guide block 218. A second spring 216 is arranged on the guide block 218, and the second spring 216 is used to provide an elastic force to the transmission block 214 in its axial direction.

[0081] In this embodiment, a pinch bar 2111 is arranged on the knob 211; when the knob bump 2112 is at the top of the L-shaped slot two 313, the clamping seat 140 is parallel to the sheath 160. When the knob 211 is pressed and rotated so that the knob bump 2112 is clamped into the bottom of the slot two 313, the rotating rod 212 moves downward, driving the transmission rod 213 to push the transmission block 214 backward, thereby pulling the movable rod backward, so that the clamping seat 140 pivots downward by 90°, so as to be axially perpendicular to the sheath 160.

[0082] In this embodiment, the handle housing 300 includes a movable part 310 and a fixed part 320. The fixed part 320 is provided with a groove along the axial direction, and a circular protrusion of the movable part 310 along the axial direction is clamped into the circular groove.

[0083] In this embodiment, the suture needle rotation control member 220 is used to control the circumferential rotation of the suture needle assembly 200, and it includes a ratchet wheel 221, a one-way rotating rod 222, and a puncture needle guide member 224; wherein the ratchet wheel 221 is fixedly arranged on the end face of the fixed part 320. One end of the one-way rotating rod 222 is fixedly connected to the movable part 310, and the other end is clamped into the ratchet teeth of the ratchet wheel 221. A third spring 223 is arranged at the lower part of the one-way rotating rod 222, and the third spring 223 is used to provide an upward elastic force to the one-way rotating rod 222.

[0084] The puncture needle guide 224 is connected to the ratchet 221. The puncture needle guide 224 is fixed to the movable part 310 by a clamping method. Due to the structural limitation of the ratchet 221, the movable part 310 can only rotate counterclockwise. In this embodiment, the ratchet 221 includes 6 ratchet teeth. Each time the movable part 310 rotates, the suture needle assembly 200 is driven to rotate 60° in the circumferential direction. In order to prompt the user, in this embodiment, 6 marking blocks 312 are correspondingly arranged on the outer surface of the movable part 310, and their positions correspond one by one to the positions of the 6 ratchet teeth of the ratchet 221.

[0085] In this embodiment, the suture needle telescopic control member 230 includes a first button 231, a second button 232 and a push tube 233. An axially dumbbell-shaped opening 322 is formed in the upper side of the fixing part 320. The first button 231 is movably arranged in the opening 322 and is fixed to the proximal end of the puncture needle 150 to control the telescopic movement of the puncture needle 150.

[0086] In this embodiment, elastic pieces two 2311 are arranged on both sides of the first button 231. The first button 231 can be clamped at both ends of the above-mentioned dumbbell-shaped opening 322 through the elastic pieces two 2311.

[0087] A first clamping strip 236 is movably connected to the inner wall of the fixing part 320 through a connecting rod. The end of the first clamping strip 236 is hook-shaped, and a fourth spring 238 is arranged below the first clamping strip 236, and the fourth spring 238 is in contact with the hook-shaped end of the first clamping strip 236.

[0088] A push tube 233 is movably arranged in the middle and rear part of the fixing part 320. The push tube 233 can move back and forth in the fixing part 320. A second clamping strip 237 is arranged at the front end of the push tube 233. When the push tube 233 moves forward, the first clamping strip 236 contacts the second clamping strip 237 and forms a clamping state.

[0089] The end of the grasping rod 130 extends into the push tube 223 from the front end of the push tube 223 and is fixed to the push tube 223. The push rod 120 enters the push tube 223 from the front end of the push tube 223. A blocking part 123 is arranged at the proximal end of the push rod 120. A fifth spring 239 is arranged between the blocking part 123 and the inner side of the end face of the push tube 233.

[0090] In this embodiment, a box-shaped platform 2331 is further arranged in the push tube. The end of the push rod 120 extends into the box-shaped platform 2331 and abuts against a guide groove block 2332 arranged in the box-shaped platform 2331. A fifth spring 239 is arranged outside the push rod 120 and between the inner wall of the box-shaped platform 2331 and the guide groove block 2332. The other end of the guide groove block 2332 is fixedly connected to the second button 232.

[0091] In this embodiment, a heart-shaped guide groove 2332a is provided in the guide groove block 2332. The heart-shaped guide groove 2332a includes at least three sloped groove bodies. A first step 2332c is provided between adjacent groove bodies. A clamping block 2332b with a groove is provided in the middle of the heart-shaped guide groove 2332a. One end of the pull rod 235 is fixedly connected to the box-shaped table 2331, and the other end is movably clamped in the heart-shaped guide groove 2332a.

[0092] In this embodiment, a protruding second step 2333 is provided on the outer side of the push cylinder 233, and a protruding third step 323 is provided on the inner wall of the fixing part 320. A sixth spring 2310 is provided between the second step 2333 and the third step 323. The sixth spring 2310 is used to provide an axial elastic force to the push cylinder 233.

[0093] Please refer to Figures 19 to 22 , and the working process of the annulus fibrosus suturing device will be specifically described as follows:

[0094] 1. Make the clamping seat 140 axially parallel to the sheath 160. The puncture needle 150, the shuttle 110, the grasping rod 130, and the push rod 120 are retracted into the sheath 160. Insert the suturing device through the annulus fibrosus rupture so that the clamping seat 140 is located inside the rupture and the first hole is located outside the rupture;

[0095] 2. Press the knob 211 and rotate it counterclockwise. The knob convex block 2112 is snapped into the bottom of the L-shaped slot two 313 to bend the clamping seat 90°;

[0096] 3. Slide the first button 231 forward until the second elastic piece 2311 catches the front side wall of the dumbbell-shaped opening 322. The puncture needle 150 moves forward and pierces the annulus fibrosus at the edge of the annulus fibrosus tear. Then, keep the second button 232 stationary (at this time, the pull rod 235 is caught in the apical position of the catch block 2332c) and push the syringe barrel 233 forward, so that the grasping rod 130 and the shuttle 110 move forward and pass through the annulus fibrosus from the puncture opening of the puncture needle. The shuttle 110 is launched into the through hole 142 of the clamping seat 140 and is fixed by the first elastic piece 141 and the ridge 143 in the clamping seat 140. At this time, the first latch strip 236 and the second latch strip 237 engage with each other to fix the syringe barrel 233. Then, press the second button 232. The pull rod 235 moves backward along the guide groove and is caught in the position opposite to the apex. This process causes the guide groove block 2332 to move forward to push the push rod 120 forward. The two spherical protrusions 121 at the distal end of the push rod 120 move forward in the two deep grooves 132 of the grasping rod 130. Since the depths of the two deep grooves 132 decrease in a gradient manner from the back to the front, when the push rod 120 moves to the most forward end, it can expand the grasping rod 130. At this time, slide the first button 231 backward until the second elastic piece 2311 catches the rear side wall of the dumbbell-shaped opening 322. The puncture needle 150 retracts into the first opening 161. At the same time, the lower end of the first button 231 presses the first latch strip 236 downward, causing the first latch strip 236 to disengage from the second latch strip 237. The syringe barrel 233 moves backward under the action of the elastic force of the sixth spring 2310, thereby driving the grasping rod 130 and the push rod 120 to retract into the first opening 161. The shuttle 110 is left in the clamping seat 140, so that the suture 180 penetrates into the annulus fibrosus from the first position;

[0097] 4. Rotate the front movable part 310 of the handle housing 300 counterclockwise or rotate the handle as a whole, so that the clamping seat 140 drives the shuttle 110 to rotate a corresponding angle in the wound. Slide the first button 231 forward, so that the puncture needle 150 pierces the annulus fibrosus at the edge of the tear at the new position. Press the second button 232, so that the pull rod 235 returns to the apical position again to retract the push rod 120 by a certain distance. Push the syringe barrel 233 forward. The grasping rod 130 enters the wound through this new position and catches the two ears 1131 of the shuttle 110. Slide the first button 231 backward, and the puncture needle 150, the grasping rod 130, and the shuttle 110 retract together. The shuttle 110 exits from the second position with the suture 180;

[0098] 5. Continue to rotate the front movable part 310 of the handle housing 300 counterclockwise, so that the clamping seat 140 is in another new position, and repeat the above steps of piercing and pulling out the suture until the preset wiring is completed. Finally, pull the stapler to tighten the two ends of the thread and tie a knot to complete the suture.

[0099] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0100] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber ring suture device, characterized in that, Comprising: A suture needle assembly (100), the suture needle assembly (100) includes a piercing member, a clamping seat (140) and a sheath tube (160), the piercing member is movably disposed within the sheath tube (160), and the clamping seat (140) is movably disposed at the distal end of the sheath tube (160); the front end of the piercing member is releasably connected to a shuttle (110), and a suture (180) is disposed on the shuttle (110); A suture needle control assembly (200), the suture needle control assembly (200) is used to control the movement of the piercing member to clamp or release the shuttle (110), so as to drive the suture (180) to penetrate from the first side to the second side at the first position of the annulus fibrosus and penetrate from the second side to the first side at the second position of the annulus fibrosus, wherein the clamping seat (140) is used to clamp the shuttle (110) on the second side of the annulus fibrosus when the shuttle (110) is released; A handle housing (300), the handle housing (300) is used to accommodate the suture needle assembly (100) and the suture needle control assembly (200), and it includes a fixed part (320) and a movable part (310) movably connected to the fixed part (320); The piercing member includes a push rod (120), a grasping rod (130) and a piercing needle (150) sleeved from the inside out in sequence, and the shuttle (110) is releasably connected to the distal end of the grasping rod (130); A plurality of protrusions (121) are provided at the distal end of the push rod (120), and a blocking part (123) is provided at the proximal end; A plurality of windows (131) are symmetrically arranged circumferentially at the distal end of the grasping rod (130), a plurality of slits (133) are axially formed, and a plurality of deep grooves (132) are formed on the inner wall of the distal end, and the depths of the plurality of deep grooves (132) decrease in a gradient manner from the proximal end to the distal end; The shuttle (110) includes a conical passing part (111), a ring part (112) and a clamping part (113), a plurality of radially outwardly protruding ears (1131) are symmetrically arranged on the clamping part (113), and an inclined surface (1132) inclined towards the center is formed on the ear (1131). In the initial state, the ear (1131) of the shuttle (110) is snapped into the above-mentioned window (131); The distal end of the piercing needle (150) is provided as a blade part.

2. The annulus fibrosus suturing device according to claim 1, wherein The suture needle assembly (100) further includes a movable rod, the movable rod includes a head (171), a rod part (172) and a bent neck, and the head (171) is arranged parallel to the rod part (172); One end of the clamping seat (140) is pivotally connected to one end of the sheath tube (160), and the upper middle part of the clamping seat (140) is connected to the head (171) through a connecting member (190); A through hole (142) is formed in the lower part of the clamping seat (140), and a plurality of first elastic pieces (141) are arranged on the side wall of the through hole (142), and the first elastic piece (141) includes a first outward expanding part (1411), a narrowing part (1412) and a second outward expanding part (1413) connected in sequence; Inside the through portion (142), a ridge (143) is provided, and a plurality of inclined surfaces and chamfers are provided on the ridge (143).

3. The annulus fibrosus suturing device according to claim 2, wherein The suture needle control assembly (200) includes a clamping seat movement control member (210), and the clamping seat movement control member (210) includes a knob (211), a rotating rod (212), a transmission rod (213), and a transmission block (214); The knob (211) is fixedly connected to the upper end of the rotating rod (212). A plurality of knob bumps (2112) are provided on the outer circumferential surface of the knob (211), and a corresponding plurality of second slots (313) are provided on the inner surface of the handle housing (300). The knob bumps (2112) are cooperatively connected with the second slots (313); A first spring (215) is sleeved on one side of the rotating rod (212) close to the knob (211), and the first spring (215) is used to provide an axial elastic force to the knob (211); Both ends of the transmission rod (213) are respectively connected to the rotating rod (212) and the transmission block (214), and the middle part of the transmission rod (213) is rotatably connected to the inner side wall of the handle housing (300) through a cross column (217).

4. The annulus fibrosus suturing device according to claim 3, wherein A second notch (2121) is provided at the lower part of the rotating rod (212), a through slot (2141) is provided on the transmission block (214), one end of the transmission rod (213) is clamped in the second notch (2121), and the other end is clamped in the through slot (2141); One end of the transmission block (214) is fixedly connected to the movable rod, and the other end is movably clamped in the handle housing (300) through a guide block (218). A second spring (216) is sleeved on the guide block (218), and the second spring (216) is used to provide an axial elastic force to the transmission block (214).

5. The annulus fibrosus suturing device according to claim 1, wherein The suture needle control assembly (200) further includes a suture needle rotation control member (220), and the suture needle rotation control member (220) includes a ratchet wheel (221), a one-way rotating rod (222), and a puncture needle guide member (224); The ratchet wheel (221) is fixedly connected to the fixed portion (320), and the puncture needle guide member (224) is arranged in the ratchet wheel (221) and is clamped with the movable portion (310); One end of the one-way rotating rod (222) is fixedly connected to the movable portion (310), and the other end is inserted into the ratchet teeth of the ratchet wheel (221). A third spring (223) is arranged at the lower part of the one-way rotating rod (222), and the third spring (223) is used to provide an elastic force to the one-way rotating rod (222).

6. The annulus fibrosus suture apparatus according to claim 1, wherein The suture needle control assembly (200) further includes a suture needle telescopic control member (230), and the suture needle telescopic control member (230) includes a first button (231), a second button (232), and a push tube (233); An opening (322) is provided on the handle housing (300). The first button (231) is movably arranged within the opening (322). Two elastic pieces (2311) are provided on both sides of the first button (231), and the elastic pieces (2311) are used to clamp the first button (231) at both ends of the opening (322). The lower part of the first button (231) is fixedly connected to the proximal end of the puncture needle (150) and is used to control the telescopic movement of the puncture needle (150). The second button (232) is used to control the telescopic movement of the push rod (120), and the push cylinder (233) is used to control the telescopic movement of the push rod (120) and the grasping rod (130).

7. The annulus fibrosus suturing device according to claim 6, characterized in that, A first clamping strip (236) is movably connected to the inner wall of the fixing part (320). The push cylinder (233) is movably arranged within the fixing part (320) and is connected with a second clamping strip (237). A fourth spring (238) is provided below the first clamping strip (236), and the fourth spring (238) is used to provide an upward elastic force to the first clamping strip (236). The second clamping strip (237) is arranged at the front end of the push cylinder (233). When the push cylinder (233) moves forward, the first clamping strip (236) contacts the second clamping strip (237) and forms a clamped state.

8. The annulus fibrosus suturing apparatus according to claim 6, wherein A box-shaped platform (2331) is arranged within the push cylinder (233). A guide groove block (2332) is arranged within the box-shaped platform (2331), and the guide groove block (2332) is connected to the box-shaped platform (2331) through a pull rod (235). The proximal end of the push rod (120) sequentially passes through the push cylinder (233) and the box-shaped platform (2331) and abuts against one end of the guide groove block (2332). A fifth spring (239) is arranged outside the push rod (120) and between the inner wall of the box-shaped platform (2331) and the guide groove block (2332). The other end of the guide groove block (2332) is fixedly connected to the second button (232). The blocking part (123) is located between the push cylinder (233) and the box-shaped platform (2331), and a seventh spring (234) is arranged between the blocking part (123) and the inner side of the end face of the push cylinder (233).

9. The annulus fibrosus suturing apparatus according to claim 8, characterized in that, A heart-shaped guide groove (2332a) is arranged on the guide groove block (2332). The heart-shaped guide groove (2332a) includes multiple sloped groove bodies. A first step (2332c) is arranged between adjacent groove bodies. A clamping block (2332b) with a groove is arranged in the middle of the heart-shaped guide groove (2332a). One end of the pull rod (235) is fixedly connected to the box-shaped platform (2331), and the other end is movably clamped within the heart-shaped guide groove (2332a). A protruding second step (2333) is provided on the outer side of the pushing cylinder (233), a protruding third step (323) is provided on the inner wall of the fixing part (320), a sixth spring (2310) is provided between the second step (2333) and the third step (323), and the sixth spring (2310) is used to provide an axial elastic force to the pushing cylinder (233).

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