An annulus fibrosus suturing device

Abstract

The present invention discloses an annulus fibrosus suture device, belonging to the technical field of medical devices, and solves the technical problems of long suture time and poor adaptability of the annulus fibrosus suture device in the prior art. It includes a suture needle assembly, and the suture needle assembly includes a piercing member and a clamping seat; the piercing member includes a shuttle and a push rod, a grasping rod, a piercing needle and a sheath tube which are sleeved from the inside to the outside in sequence, and the shuttle is used for clamping the suture; a suture needle control assembly, which is used to drive the piercing member to penetrate the suture 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 to receive the shuttle on the second side of the material; a handle housing, which is used to fix 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 suture device of the present invention can meet more demand scenarios, improve the suture success rate or shorten the suture time.

Description

Technical Field

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

[0002] Lumbar disc herniation is a comprehensive symptom manifested by disc degeneration, rupture of the annulus fibrosus, and prolapse of the nucleus pulposus stimulating or compressing the nerve root. During the operation, it is necessary to incise the annulus fibrosus, remove the nucleus pulposus at the rupture of the annulus fibrosus, and after the operation, it is necessary to suture the incision of the annulus fibrosus to reduce the possibility of recurrence of lumbar disc herniation after the operation.

[0003] In the related art, a disposable annulus fibrosus suturing device can be used to suture the annulus fibrosus. Generally, disposable annulus fibrosus suturing devices include the following categories: First, insert the disposable annulus fibrosus suturing device into the surgical channel first to pass a suture thread through one side of the incision, then replace the disposable annulus fibrosus suturing device and insert it into the surgical channel again to pass a suture thread through the other side of the incision, and finally tie and fix the two suture threads. In this way, the interval time between passing the two suture threads is long, occupying the surgical time. Second, there is a suturing device with a straight needle and a curved needle, but 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 suturing devices for different types of annulus fibrosus wounds or incisions, and for irregular wounds, suturing may fail due to the collapse of the soft tissue at the incision edge.

[0004] It can be seen that there is a need to provide an improved disposable annulus fibrosus suturing 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 suturing 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 mode around the wound, can meet the suturing of both small-area trauma and large-area trauma, and does not need to replace different suturing 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 suturing 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 to the second side of the first position of the annulus fibrosus, and penetrate from the second side to the first side of the second position of the annulus fibrosus, 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 push rod clamping 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. The depths of the plurality of deep grooves decrease in a gradient manner from the proximal end to the distal end. A grasping rod clamping part is arranged at the proximal end of the grasping rod.

[0014] The distal end of the piercing needle is set as a blade part, and a piercing needle clamping part is arranged at the proximal end.

[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 first elastic piece is arranged in the middle of the clamping seat, a through hole is opened in the lower part, a ridge is arranged inside the through hole, and a plurality of inclined surfaces and chamfers are arranged on the ridge.

[0018] Optionally or preferably, the shuttle includes a conical threading 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.

[0019] Optionally or preferably, the suture needle control assembly includes a clamping seat moving control member, and the clamping seat moving control member includes a rotating rod, a gear, a rack, a first paddle, a second paddle, a blocking portion, and a pair of fixing plates;

[0020] The upper end of the rotating rod is fixedly connected with a knob, and the lower end is fixedly connected with the gear; the gear is meshed with the rack, and the rack is fixedly connected with the moving rod;

[0021] The blocking portion is fixedly connected with the inner wall of the handle housing. The blocking portion has a proximal step and a distal step that are opposite to each other. The moving rod passes through the distal step of the blocking portion and abuts against its proximal step. A first spring is arranged between the rack and the proximal step, and the first spring is sleeved on the moving rod;

[0022] A pair of the fixing plates are arranged in parallel and fixedly connected with the inner wall of the handle housing. A first column and a second column are arranged between the fixing plates; the second paddle is sleeved on the first column and connected with the second column through a first tension spring;

[0023] The first paddle is fixedly connected with the rotating rod and rotates with the rotating rod. When the rotating rod rotates to an angle, the first paddle and the second paddle form a clamping relationship to stop. When the rotating rod continues to rotate, the first paddle and the second paddle are disengaged and the clamping relationship is released.

[0024] Optionally or preferably, the first paddle includes a first chamfer and a second chamfer with different inclinations. The length of the first chamfer is greater than that of the second chamfer, and a gap is formed between the first chamfer and the second chamfer;

[0025] The second paddle includes a third chamfer, and the inclination direction of the third chamfer is different from those of the first chamfer and the second chamfer;

[0026] When the first paddle and the second paddle form a clamping relationship, the third chamfer is clamped in the gap.

[0027] Optionally or preferably, the suture needle control assembly further includes a suture needle rotation control member, and the suture needle rotation control member includes a ratchet wheel, a one-way rotating rod, and a puncture needle guiding member;

[0028] The ratchet wheel is fixedly connected with the fixed portion, and the puncture needle guiding member is arranged in the ratchet wheel and is clamped with the moving portion;

[0029] One end of the one-way rotating rod is fixedly connected with the moving portion, and the other end is clamped into the ratchet teeth of the ratchet wheel. A second spring is arranged at the lower part of the one-way rotating rod, and the second spring is used to provide an elastic restoring force to the one-way rotating rod.

[0030] Optionally or preferably, the suture needle control assembly further includes a suture needle telescopic control member, and the suture needle telescopic control member includes a first trigger, a second trigger, a second tension spring, and a third tension spring;

[0031] The first trigger is used to control the telescopic movement of the grasping rod and the puncture needle;

[0032] The second trigger is used to control the telescopic movement of the push rod;

[0033] The end of the second trigger is arranged behind the end of the first trigger.

[0034] Optionally or preferably, one end of the first trigger is connected to one end of the second tension spring, and the other end of the second tension spring is connected to the first cross column;

[0035] The grasping rod is clamped with the first trigger through the grasping rod clamping portion;

[0036] The puncture needle is connected to the first trigger through the second elastic piece. One end of the second elastic piece is formed with a protrusion and is clamped in the puncture needle clamping portion. The other end of the second elastic piece is connected with a sphere, and the sphere is clamped in the first trigger; A third spring is further arranged between the proximal end of the puncture needle and the grasping rod clamping portion;

[0037] One end of the second trigger is connected to one end of the third tension spring, and the other end of the third tension spring is connected to the second cross column;

[0038] The push rod is clamped with the second trigger through the push rod clamping portion.

[0039] Optionally or preferably, a puncture needle baffle is further arranged in the handle housing, a stop portion is correspondingly arranged on the puncture needle, and the puncture needle baffle is used to resist the stop portion.

[0040] Based on the above technical solutions, the present invention can at least produce the following technical effects:

[0041] The annulus fibrosus suturing device provided by the present invention can not only meet the suturing of small-area wounds, but also meet the suturing of large-area wounds, and there is no need to replace the suturing device during the suturing process, thereby improving the suturing success rate and shortening the suturing time. Description of the Drawings

[0042] Figure 1 is the overall structural schematic diagram of the annulus fibrosus suturing device of the present invention;

[0043] Figure 2 is the partial structural schematic diagram of the suture needle assembly in the annulus fibrosus suturing device of the present invention;

[0044] 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;

[0045] Figure 4 It is a schematic diagram of the cooperation structure of the shuttle - push rod - grasping rod in the annulus fibrosus suture device of the present invention;

[0046] Figure 5 It is a schematic diagram of the structure of the shuttle in the annulus fibrosus suture device of the present invention;

[0047] Figure 6 It is a schematic diagram of the structure of the distal end of the grasping rod in the annulus fibrosus suture device of the present invention Figure 1 ;

[0048] Figure 7 It is a schematic diagram of the structure of the distal end of the grasping rod in the annulus fibrosus suture device of the present invention Figure 2 ;

[0049] Figure 8 It is a schematic diagram of the structure of the distal end of the push rod in the annulus fibrosus suture device of the present invention;

[0050] Figure 9 It is a schematic diagram of the connection structure of the clamping seat and the connecting piece in the annulus fibrosus suture device of the present invention;

[0051] Figure 10 It is a schematic diagram of the internal structure of the handle housing in the annulus fibrosus suture device of the present invention Figure 1 ;

[0052] Figure 11 It is Figure 10 A partial enlarged schematic diagram of part A in;

[0053] Figure 12 It is a schematic diagram of the internal structure of the handle housing in the annulus fibrosus suture device of the present invention Figure 2 ;

[0054] Figure 13 It is Figure 12 A partial enlarged schematic diagram of part B;

[0055] Figure 14 It is a schematic diagram and a partial enlarged diagram of the structure of the first paddle in the annulus fibrosus suture device of the present invention;

[0056] Figure 15 It is a schematic diagram of the structure of the second paddle in the annulus fibrosus suture device of the present invention;

[0057] Figure 16 It is a schematic diagram of the connection structure between the second elastic piece and the first trigger in the annulus fibrosus suture device of the present invention;

[0058] Figure 17 It is a state diagram of the annulus fibrosus suture device of the present invention before inserting into the annulus fibrosus wound;

[0059] Figure 18It is a state diagram of the annulus fibrosus suture device of the present invention when the clamping seat is bent 90 degrees after the annulus fibrosus wound is inserted into the annulus fibrosus wound and the shuttle is launched into the annulus fibrosus wound;

[0060] Figure 19 This is a state diagram of the fiber ring suture device of the present invention, in which the push rod and the grab rod are withdrawn and the shuttle and the suture remain in the clamping seat;

[0061] Figure 20 It is a state diagram of the fiber ring suture device of the present invention when the clamping seat, the shuttle and the suture are rotated by an angle.

[0062] In the figure: 100, suture needle assembly; 110, shuttle; 111, conical running part; 1111, slot; 112, clamping part; 1121, ear; 1122, inclined surface; 120, push rod; 121, protrusion; 122, push rod clamping part; 130, grab bar; 131, window; 132, deep groove; 133, notch; 134, grab bar clamping part; 140, clamping seat; 141, spring piece 1; 142, through through portion; 143, spine; 150, puncture needle; 151, puncture needle clamping portion; 152, stop portion; 160, sheath; 161, first opening; 170, movable rod; 171, head; 172, rod; 180, suture; 190, connector; 191, connecting rod 1; 192, connecting rod 2; 200, suture needle control assembly; 210, clamp seat movable control member; 211, knob; 2111, pinch bar; 212, rotating rod; 213, gear; 214, rack; 215, first paddle; 2151, chamfer 1; 2152, chamfer 2; 2153, gap; 216, second paddle; 217, first spring; 218, first tension spring; 219, blocking part; 2110, fixing plate; 220, suture needle rotation control member; 221, ratchet; 222, one-way rotating rod; 223, second spring; 224, puncture needle Guide member; 230, suture needle extension and retraction control member; 231, first trigger; 232, second trigger; 233, second tension spring; 234, third tension spring; 235, third spring; 236, second spring; 2361, sphere; 237, first cross column; 238, second cross column; 300, handle housing; 310, movable part; 311, take-up wheel; 312, marking block; 321, puncture needle baffle; 2161-third chamfer. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work belong to the scope of protection of the present invention.

[0064] Embodiment

[0065] Please refer to Figure 1 , a fiber annulus suture device, which is used to drive the suture 180 to rotate within the fiber annulus wound, and drive the suture 180 to penetrate into and out of the wound during rotation, so as to form a purse-string suture pattern around the wound, and can meet the suture requirements for both small-area trauma and large-area trauma.

[0066] In this embodiment, the above-mentioned fiber annulus suture device includes a suture needle assembly 100, a suture needle control assembly 200, and a handle housing 300.

[0067] Please refer to Figures 2 to 9 , specifically, 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 tube 160 that are sleeved from the inside out in sequence. The shuttle 110 is used to clamp the 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 blade portion and is used to pierce tissue; the sheath tube 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 tube 160, and a first opening 161 is provided on the sheath tube 160. Through the above-mentioned suture needle control assembly 200, the above-mentioned piercing member can extend or retract within the first opening 161.

[0068] In this embodiment, the suture needle assembly 100 further includes a movable rod 170. The movable rod 170 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 170 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 head 171 and the neck 172.

[0069] Please refer to Figure 9 , the suture needle control assembly 200 controls the forward and backward movement of the movable rod 170, thereby driving the connecting member 190 to move forward and backward, and further driving the clamping seat 140 to extend axially or pivot downward to form a 90° angle with the axis.

[0070] In this embodiment, the connecting member 190 includes a connecting rod one 191 and a connecting rod two 192. One end of the connecting rod one 191 is movably connected to the clamping seat 140 through the connecting rod two 192, and the other end is fixedly connected to the movable rod 170.

[0071] In this embodiment, a through hole 142 is formed in the lower part of the clamping seat 140, and a first elastic piece 141 is arranged in the middle part. The bottom of the first elastic piece 141 extends to the through hole 142, and the bottom of the first elastic piece 141 is an inclined surface, so that the first elastic piece 141 can clamp the shuttle 110; in addition, a ridge 143 facing the center of the through hole 142 is arranged on the bottom surface of the through hole 142. Multiple inclined surfaces and chamfers are formed on the ridge 143, and the ridge 143 is used to guide 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 it from moving around.

[0072] Please refer to Figure 5 , in this embodiment, the shuttle 110 includes a conical threading part 111 at the front end and a clamping part 112 at the rear end. The conical threading part 111 is hollow and forms a hollow part, and the end of the sewing thread 180 is clamped in the hollow part; two radially outward protruding ears 1121 are symmetrically arranged on the clamping part 112, and two inclined surfaces 1122 inclined towards the center are arranged on each ear 1121. An axially through slot 1111 is arranged at the bottom of the conical threading part 111, and the slot 1111 is used to be clamped with the above-mentioned ridge 143, so that the shuttle 110 is further fixed in the clamping seat 140.

[0073] For the convenience of description and understanding, the proximal end and the distal end described in this embodiment are for the user. When the user holds the annulus fibrosus suturing device, the end close to the user is the proximal end, and the end far from the user is the distal end.

[0074] Please refer to Figure 7 and Figure 8 , in this embodiment, two spherical protruding parts 121 are symmetrically arranged on the circumferential surface of the distal end of the push rod 120, and a push rod clamping part 122 is arranged at the proximal end of the push rod 120.

[0075] Please refer to Figure 3 , in this embodiment, the inside of the puncture needle 150 is hollow, and its distal end is a blade part for puncturing tissue. A stop part 152 and a puncture needle clamping part 151 are arranged on the circumferential surface of the proximal end of the puncture needle 150.

[0076] Please refer to Figure 6 and Figure 7, in this embodiment, the gripper bar 130 is hollow inside, and two windows 131 are symmetrically arranged along the circumferential direction at its distal end. These two windows 131 can be correspondingly snapped into two ear portions 1121 of the shuttle 110; on the inner surface of the gripper bar 130 connected to the two windows 131, two deep grooves 132 are further arranged axially. The depth of the deep grooves 132 decreases in a gradient manner from the proximal end to the distal end. Two notches 133 along the axial direction of the gripper bar 130 are symmetrically arranged in the direction perpendicular to the above-mentioned windows 131, so that the distal end of the gripper bar 130 has elasticity. The push rod 120 is movably arranged inside the gripper bar 130, and two protruding portions 121 are respectively in sliding contact with the two deep grooves 132; it can be understood that when the push rod 120 moves from the proximal end to the distal end, the protruding portion 121 can expand the distal end of the gripper bar 130 and release the shuttle 110; when the push rod 120 moves from the distal end to the proximal end, the distal end of the gripper bar 130 resumes and can re-capture the shuttle 110 by means of the inclined surface 1122 of the shuttle 110; a gripper bar clamping portion 134 is arranged at the proximal end of the gripper bar 130.

[0077] Please refer to Figures 10 to 16 , in this embodiment, the suture needle control assembly 200 includes a clamping seat movable control member 210, a suture needle rotation control member 220, and a suture needle telescopic control member 230.

[0078] Specifically, the above-mentioned clamping seat movable control member 210 includes a rotating rod 212, a gear 213, a rack 214, a first flap 215, a second flap 216, a blocking portion 219, and a pair of fixing plates 2110; wherein the knob 211 and the rotating rod 212 are fixedly connected, the first flap 215 is fixedly connected to the middle of the rotating rod 212, the gear 213 is fixedly connected to the bottom of the rotating rod 212, the gear 213 is meshed with the rack 214, and the rack 214 is fixedly connected to the rod portion 172 of the movable rod 170; the blocking portion 219 is fixedly connected to the inner wall of the handle housing 300, and the blocking portion 219 has a proximal step and a distal step opposite to each other. The movable rod 170 passes through the distal step of the blocking portion 219 and abuts against the inner wall of the proximal step; a first spring 217 is arranged between the rack 214 and the proximal step, and the first spring 217 is sleeved on the movable rod 170; a pair of fixing plates 2110 are arranged in parallel and fixedly connected to the inner wall of the handle housing 300. A first column and a second column are arranged between the fixing plates 2110; the second flap 216 is sleeved on the first column and connected to the second column through a first tension spring 218; the first flap 215 is fixedly connected to the rotating rod 212 and rotates with the rotating rod 212. When the rotating rod 212 rotates to an angle, the first flap 215 contacts the second flap 216 and forms a locking relationship. When the rotating rod 215 continues to rotate, the first flap 215 is separated from the second flap 216 and the locking relationship is released.

[0079] Please refer to Figure 14 and Figure 15, in this embodiment, a pair of fixing plates 2110 are fixedly connected to the inner wall of the handle housing 300, and a first column and a second column are arranged between the fixing plates 2110; the second flap 216 is sleeved on the first column and connected to the second column through a first tension spring 218;

[0080] The first flap 215 is fixedly connected to the rotating rod 212 and rotates with the rotating rod 212. When the rotating rod 212 rotates to an angle, the first flap 215 contacts the second flap 216 and forms an engaging relationship. When the rotating rod 215 continues to rotate, the first flap 215 disengages from the second flap 216 and the engaging relationship is released.

[0081] In this embodiment, a pinch strip 2111 is provided on the knob 211. When the pinch strip 2111 is rotated clockwise, the gear 213 rotates clockwise accordingly, thereby driving the rack 214 to move towards the proximal end. The rack 214 simultaneously drives the movable rod 170 to move backward, causing the clamping seat 140 to gradually pivot downward, and the movement of the rack 214 will gradually compress the first spring 217. The first flap 215 also rotates clockwise at the same time and gradually contacts the second flap 216 during the rotation process, and continuously drives the second flap 216 to rotate clockwise, thereby gradually stretching the first tension spring 218. When the pinch strip 2111 is rotated until it is perpendicular to the axial direction of the sheath 160, the third chamfer 2161 in the second flap 216 is caught in the gap 2153 between the first chamfer 2151 and the second chamfer 2152 in the first flap 215. And because the first spring has a reverse acting force on the first flap 215 and the first tension spring 218 has a reverse acting force on the second flap 216, a stable and balanced force can be formed between the third chamfer 2161 and the first chamfer 2151 and the second chamfer 2152, so as to remain stationary, making the clamping seat 140 maintain a state of 90° with the axial direction. When it is necessary to restore the clamping seat 140 to a state parallel to the axial direction, only need to rotate the pinch strip 2111 clockwise again to disengage the first flap 215 from the second flap 216. At this time, the rack 214 moves towards the distal end under the elastic force of the first spring 217, thereby driving the movable rod 170 to move forward, making the clamping seat 140 return to a state parallel to the axial direction. At the same time, the gear 213, the rotating rod 212, the first flap 215 and the knob 211 also rotate counterclockwise to their original positions, and the second flap 216 also returns to its original position under the elastic force of the first tension spring 218.

[0082] Please refer to Figures 10 to 13 , 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 circumferential direction, and a circumferential protrusion of the movable part 310 is caught in the groove.

[0083] In this embodiment, the suture needle rotation control member 220 includes a member for controlling the circumferential rotation of the suture needle assembly 100, including a ratchet wheel 221, a one-way rotating rod 222, and a puncture needle guide member 224; the ratchet wheel 221 is fixedly arranged on the end surface of the fixed part 320, the one-way rotating rod 222 is fixedly arranged on the inner wall of the movable part 310, a second spring 223 is arranged below the lower end of the one-way rotating rod 222, and the second spring 223 is arranged below the lower part of the one-way rotating rod 222. The second spring 223 is used to provide an upward elastic force to the one-way rotating rod 222; the end of the one-way rotating rod 222 is caught in the ratchet teeth of the ratchet wheel 221, a puncture needle guide member 224 is arranged inside the ratchet wheel 221, the puncture needle 150 is arranged through the puncture needle guide member 224, and the puncture needle guide member 224 is fixedly connected to the movable part 310 by a clamping method.

[0084] Due to the structural limitation of the ratchet wheel 221, the movable part 310 can only rotate counterclockwise. In this embodiment, the ratchet wheel 221 includes 6 ratchet teeth. Each time the movable part 310 rotates once, the suture needle assembly 100 can be driven to rotate 60° circumferentially.

[0085] In this embodiment, 6 corresponding marking blocks 312 are arranged on the outer side wall of the movable part 310, and the marking blocks 312 correspond to the positions of the ratchet teeth of the ratchet wheel 221 one by one, so as to prompt the user of the rotation position of the ratchet wheel 221.

[0086] Please refer to Figure 13 and Figure 16 In this embodiment, the suture needle telescopic control member 230 includes a first trigger 231, a second trigger 232, a second tension spring 233, and a third tension spring 234; one end of the first trigger 231 is connected to one end of the second tension spring 233, and the other end of the second tension spring 233 is connected to a first cross column 237; the grasping rod 130 is clamped to the first trigger 231 through a grasping rod clamping portion 134; the puncture needle 150 is connected to the first trigger 231 through a second elastic piece 236. One end of the second elastic piece 236 forms a protrusion and is clamped in the puncture needle clamping portion 151. The other end of the second elastic piece 236 is connected to a sphere 2361, and the sphere 2361 is clamped in the first trigger 231; a third spring 235 is further arranged between the proximal end of the puncture needle 150 and the grasping rod clamping portion 134; one end of the second trigger 232 is connected to one end of the third tension spring 234, and the other end of the third tension spring 234 is connected to a second cross column 238; the push rod 120 is clamped to the second trigger 232 through a push rod clamping portion 122.

[0087] In this embodiment, a puncture needle baffle 321 is further arranged in the fixed part 320. Correspondingly, a stop portion 152 is further arranged on the puncture needle 150. When the puncture needle 150 moves forward a certain stroke until the stop portion 152 abuts against the puncture needle baffle 321, the puncture needle 150 stops moving.

[0088] Please refer toFigures 17 to 20 The following is a detailed description of the working process of the fiber ring suture device:

[0089] 1. Make the clamping seat 140 parallel to the sheath tube 160 axially, retract the puncture needle 150, shuttle 110, grab rod 130 and push rod 120 into the sheath tube 160, and insert the suture device through the fiber ring rupture, so that the clamping seat 140 is located inside the rupture and the first opening 161 is located outside the rupture;

[0090] 2. Turn the knob clockwise to bend the clamping seat 140 by 90°;

[0091] 3. Pull the first trigger 231, the puncture needle 150, the grab bar 130 and the shuttle 110 move forward, the puncture needle 110 punctures the fiber ring at the edge of the fiber ring rupture, the grab bar 130 and the shuttle 110 pass through the fiber ring from the rupture, the shuttle 110 is launched into the through-hole 142 of the clamping seat 140, and is fixed by the spring piece 141 and the ridge 143 in the clamping seat 142, the second trigger 232 is pulled, the push rod 120 moves forward, and the two spherical protrusions at the front end of the push rod 120 121 moves forward in the two deep grooves 132 of the grab bar 130. Since the depth of the two deep grooves 132 decreases gradually from the proximal end to the distal end, when the push rod 120 moves to the front end, the grab bar 130 can be opened. At this time, the first trigger 231 and the second trigger 232 are released successively, and the puncture needle 150, the grab bar 130 and the push rod 120 are retracted into the first opening 161. The shuttle 110 is left in the clamping seat 140, so that the suture 180 penetrates the fiber ring from the first position;

[0092] 4. The front movable part 310 of the handle housing is rotated counterclockwise or the handle is rotated as a whole, so that the clamping seat 140 rotates the shuttle 110 to a corresponding angle in the wound, and the first trigger 231 is pulled. The puncture needle 150 and the grab bar 130 move forward, and the puncture needle 150 pierces the fiber ring at the edge of the wound at the second position. The grab bar 130 enters the wound through the second position. Since the front end of the grab bar 130 and the shuttle 110 are both provided with inclined surfaces 1122, the grab bar 130 can be smoothly inserted into the two ears 1121 of the shuttle 110. The first trigger 231 is released, and the puncture needle 150, the grab bar 130 and the shuttle 110 are withdrawn together, and the shuttle 110 passes through the second position to the first side with the suture 180;

[0093] 5. Continue to rotate the front movable portion 310 of the handle housing counterclockwise to place the clamping seat 140 in another new position, and repeat the above steps of inserting and pulling out the suture 180 until the preset wiring is completed. Finally, pull the suture tool to tighten and knot the thread ends at both ends to complete the suturing.

[0094] 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.

[0095] 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. An annulus fibrosus 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), thereby driving 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 portion (320) and a movable portion (310) movably connected to the fixed portion (320); The suture needle assembly (100) further includes a movable rod (170), the movable rod (170) includes a head (171), a rod portion (172) and a bent neck, and the head (171) is arranged parallel to the rod portion (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 first elastic piece (141) is arranged in the middle of the clamping seat (140), a through portion (142) is opened at the lower part, a ridge (143) is arranged inside the through portion (142), and a plurality of inclined surfaces and chamfers are arranged on the ridge (143); The suture needle control assembly (200) includes a clamping seat movement control member (210), the clamping seat movement control member (210) includes a rotating rod (212), a gear (213), a rack (214), a first dial (215), a second dial (216), a blocking portion (219) and a pair of fixing plates (2110); The upper end of the rotating rod (212) is fixedly connected to a knob (211), and the lower end is fixedly connected to the gear (213); the gear (213) meshes with the rack (214), and the rack (214) is fixedly connected to the movable rod (170); The blocking portion (219) is fixedly connected to the inner wall of the handle housing (300), the blocking portion (219) has a proximal step and a distal step opposite to each other, the movable rod (170) passes through the distal step of the blocking portion (219) and abuts against its proximal step, a first spring (217) is arranged between the rack (214) and the proximal step, and the first spring (217) is sleeved on the movable rod (170); A pair of the fixing plates (2110) are arranged in parallel and fixedly connected to the inner wall of the handle housing (300). A first column and a second column are arranged between the fixing plates (2110); the second paddle (216) is sleeved on the first column and connected to the second column through a first tension spring (218); The first paddle (215) is fixedly connected to the rotating rod (212) and rotates with the rotating rod (212). When the rotating rod (212) rotates to an angle, the first paddle (215) and the second paddle (216) form a clamping relationship to stop. When the rotating rod (215) continues to rotate, the first paddle (215) and the second paddle (216) are disengaged and the clamping relationship is released.

2. The annulus fibrosus suturing device according to claim 1, wherein The puncturing member includes a push rod (120), a grasping rod (130), and a puncturing needle (150) sleeved from the inside out in sequence. The shuttle (110) is releasably connected to the distal end of the grasping rod (130); A plurality of protrusions (121) are arranged at the distal end of the push rod (120), and a push rod clamping portion (122) is arranged at the proximal end; A plurality of windows (131) are symmetrically arranged along the circumferential direction 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. The depths of the plurality of deep grooves (132) decrease in a gradient manner from the proximal end to the distal end. A grasping rod clamping portion (134) is arranged at the proximal end of the grasping rod (130); The distal end of the puncturing needle (150) is set as a blade portion, and a puncturing needle clamping portion (151) is arranged at the proximal end.

3. The annulus fibrosus suturing device according to claim 2, characterized in that, The shuttle (110) includes a conical passing portion (111) and a clamping portion (112). A plurality of ears (1121) protruding radially outward are symmetrically arranged on the clamping portion (112), and an inclined surface (1122) inclined toward the center is formed on the ears (1121).

4. The annulus fibrosus suture apparatus according to claim 1, wherein, The first paddle (215) includes a first chamfer (2151) and a second chamfer (2152) with different inclinations. The length of the first chamfer (2151) is greater than that of the second chamfer (2152), and a gap (2153) is formed between the first chamfer (2151) and the second chamfer (2152); The second paddle (216) includes a third chamfer (2161), and the inclination direction of the third chamfer (2161) is different from those of the first chamfer (2151) and the second chamfer (2152); When the first paddle (215) and the second paddle (216) form a clamping relationship, the third chamfer (2161) is clamped in the gap (2153).

5. The annulus fibrosus suturing device according to claim 1, characterized in that, The suture needle control assembly (200) further includes a suture needle rotation control member (220). The suture needle rotation control member (220) includes a ratchet wheel (221), a one-way rotating rod (222), and a puncturing needle guiding member (224); The ratchet wheel (221) is fixedly connected to the fixing portion (320), and the puncturing needle guiding member (224) is arranged in the ratchet wheel (221) and is clamped with the movable portion (310); One end of the unidirectional rotating rod (222) is fixedly connected to the movable part (310), and the other end is engaged in the ratchet teeth of the ratchet wheel (221). A second spring (223) is arranged below the unidirectional rotating rod (222), and the second spring (223) is used to provide an elastic restoring force to the unidirectional rotating rod (222).

6. The annulus fibrosus suturing device according to claim 3, 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 trigger (231), a second trigger (232), a second tension spring (233), and a third tension spring (234); The first trigger (231) is used to control the telescopic movement of the grasping rod (130) and the puncture needle (150); The second trigger (232) is used to control the telescopic movement of the push rod (120); The end of the second trigger (232) is arranged behind the end of the first trigger (231).

7. The annulus fibrosus suturing device according to claim 6, wherein, The first trigger (231) is connected to one end of the second tension spring (233), and the other end of the second tension spring (233) is connected to the first cross column (237); The grasping rod (130) is engaged with the first trigger (231) through a grasping rod engaging portion (134); The puncture needle (150) is connected to the first trigger (231) through a second elastic sheet (236). A protrusion is formed at one end of the second elastic sheet (236) and is engaged in the puncture needle engaging portion (151). A sphere (2361) is connected to the other end of the second elastic sheet (236), and the sphere (2361) is engaged in the first trigger (231); A third spring (235) is further arranged between the proximal end of the puncture needle (150) and the grasping rod engaging portion (134); The second trigger (232) is connected to one end of the third tension spring (234), and the other end of the third tension spring (234) is connected to the second cross column (238); The push rod (120) is engaged with the second trigger (232) through a push rod engaging portion (122).

8. The annulus fibrosus suturing apparatus according to claim 7, wherein A puncture needle baffle (321) is further arranged in the handle housing (300), a stop portion (152) is correspondingly arranged on the puncture needle (150), and the puncture needle baffle (321) is used to resist the stop portion (152).

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