Fibrous ring stitching instrument

Abstract

The invention discloses a fibrous ring stitching instrument, belongs to the technical field of medical instruments, and solves the technical problems of long stitching time and poor adaptability of a fibrous ring stitching instrument in the prior art. The suture needle assembly comprises a puncture piece and a clamping seat. The puncture part comprises a shuttle, and a push rod, a grabbing rod, a puncture needle and a sheath tube which are sequentially sleeved from inside to outside, and the shuttle is used for clamping a suture; the suture needle control assembly is used for enabling the puncture part to drive the suture to penetrate from the first side to the second side of the material and then penetrate from the second side of 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; the handle shell is used for fixing the suture needle assembly and the suture needle control assembly and comprises a fixed part and a movable part movably connected with the fixed part. According to the fibrous ring stitching instrument, more demand scenes can be met, the stitching success rate is increased, or the stitching time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a fiber ring suture device. Background Art

[0002] Lumbar disc herniation is a comprehensive symptom caused by intervertebral disc degeneration, annulus fibrosus rupture, and nucleus pulposus protrusion that stimulates or compresses nerve roots. Surgery requires incision of the annulus fibrosus and removal of the nucleus pulposus at the site of the rupture. After the operation, the incision of the annulus fibrosus needs to be sutured to reduce the possibility of recurrence of lumbar disc herniation after surgery.

[0003] In the related art, a disposable fiber ring suture device can be used to suture the fiber ring, and the disposable fiber ring suture device generally includes the following categories: first, the disposable fiber ring suture device is first inserted into the surgical channel to thread the suture on one side of the incision, and then the disposable fiber ring suture device is replaced and inserted into the surgical channel again to thread the suture on the other side of the incision, and finally the two sutures are knotted and fixed. In this method, the interval between the two threadings of the suture is long, which takes up the operation time; second, there is a suture device with a straight needle and a curved needle, but the problem is that the needle spacing between the two needles and the direction of the needle positioning suture are fixed. During operation, it is almost impossible to control the positions of the two needles on both sides of the incision, and it is impossible to adjust the relative direction of the two needles suturing, which results in different types of fiber ring wounds or incisions requiring fiber ring suture devices of different specifications, and for irregular wounds, the suture failure may be caused by the collapse of the soft tissue at the edge of the incision.

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

[0005] In response to the technical problems existing in the background technology, the present solution provides a disposable fiber ring suture device, which can drive the suture to rotate in the fiber ring wound, and during the rotation process, can drive the suture to penetrate into and out of the wound, forming a purse-string suture pattern around the wound, which can meet the needs of suturing small and large area wounds at the same time, and there is no need to replace different suture devices during the suturing process, which can shorten the suturing time.

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

[0007] The present invention provides a fiber ring suture device, comprising:

[0008] A suturing needle assembly, the suturing needle assembly comprising a puncture member, a clamping seat and a sheath, the puncture member being movably disposed in the sheath, the clamping seat being movably disposed at the distal end of the sheath; the front end of the puncture member being releasably connected to a shuttle, the shuttle being provided with a suture;

[0009] A suturing needle control assembly, the suturing needle control assembly is used to control the movement of the piercing member to clamp or release the shuttle, thereby driving the suture to penetrate from the first side of the first position of the fiber ring to the second side, and from the second side of the second position of the fiber ring to the first side, wherein the clamping seat is used to clamp the shuttle at the second side of the fiber ring when the shuttle is released;

[0010] A handle shell is used to accommodate the suture needle assembly and the suture needle control assembly, and comprises a fixed part and a movable part movably connected to the fixed part.

[0011] Optionally or preferably, the puncture member comprises a push rod, a grab rod and a puncture needle which are sequentially sleeved from the inside to the outside, and the shuttle is releasably connected to the distal end of the grab rod;

[0012] The push rod is provided with a plurality of protrusions at the distal end and a push rod clamping portion at the proximal end;

[0013] The distal end of the grab bar is symmetrically provided with a plurality of windows along the circumferential direction, a plurality of notches are provided along the axial direction, and a plurality of deep grooves are provided on the inner wall of the distal end, the depths of the plurality of deep grooves decrease gradually from the proximal end to the distal end, and a grab bar clamping portion is provided at the proximal end of the grab bar;

[0014] The distal end of the puncture needle is provided with a blade portion, and the proximal end is provided with a puncture needle clamping portion.

[0015] Optionally or preferably, the suture needle assembly further comprises a movable rod, the movable rod comprising a head, a rod and a curved neck, the head and the rod being arranged in parallel;

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

[0017] The clamping seat is provided with a spring sheet 1 in the middle part, and a through part is opened at the lower part. A ridge is provided inside the through part, and a plurality of inclined surfaces and chamfers are provided on the ridge.

[0018] Optionally or preferably, the shuttle comprises a conical passing portion and a clamping portion, the clamping portion is symmetrically provided with a plurality of ears protruding radially outward, and the ears are formed with inclined surfaces inclined toward the center.

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

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

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

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

[0024] Optionally or preferably, the first paddle comprises a first chamfer and a second chamfer with different inclinations, the length of the first chamfer is greater than 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 third chamfer has an inclination direction different from the first chamfer and the second chamfer;

[0026] When the first paddle and the second paddle form a snap-fitting relationship, the third chamfer is snapped into the gap.

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

[0028] The ratchet is fixedly connected to the fixed part, and the puncture needle guide is arranged in the ratchet and is clamped with the movable part;

[0029] One end of the one-way rotating rod is fixedly connected to the movable part, and the other end is stuck in 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 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 component, and the suture needle telescopic control component 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 grabbing rod and the puncture needle to perform telescopic movement;

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

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

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

[0035] The grab bar is clamped with the first trigger through a grab bar clamping portion;

[0036] The puncture needle is connected to the first trigger through a second spring sheet, one end of the second spring sheet is formed with a protrusion and is clamped in the puncture needle clamping portion, the other end of the second spring sheet is connected to a ball, and the ball is clamped in the first trigger; a third spring is also provided between the proximal end of the puncture needle and the clamping portion of the grab bar;

[0037] 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 crossbar;

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

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

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

[0041] The fiber ring suture device provided by the present invention can meet the needs of suturing small-area wounds as well as large-area wounds, and there is no need to replace the suture device during the suturing process, thereby improving the suturing success rate and shortening the suturing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the fiber ring suture device of the present invention;

[0043] Figure 2 It is a partial structural schematic diagram of a suture needle assembly in a fiber ring suture device of the present invention;

[0044] Figure 3 It is a schematic diagram of the distal end structure of the puncture needle of the suture needle assembly in the fiber ring suture device of the present invention;

[0045] Figure 4 It is a schematic diagram of the coordination structure of the shuttle-push rod-grasp rod in the fiber ring suture device of the present invention;

[0046] Figure 5 It is a schematic structural diagram of a shuttle in a fiber ring suture device of the present invention;

[0047] Figure 6 The structure of the distal end of the grab rod in the fiber ring suture device of the present invention is schematically shown. Figure 1 ;

[0048] Figure 7 The structure of the distal end of the grab rod in the fiber ring suture device of the present invention is schematically shown. Figure 2 ;

[0049] Figure 8 It is a schematic structural diagram of the distal end of the push rod in the fiber ring suture device of the present invention;

[0050] Fig. 9 It is a schematic diagram of the connection structure of the clamping seat and the connecting piece in the fiber ring suture device of the present invention;

[0051] Fig.10 The internal structure of the handle shell of the fiber ring suture device of the present invention is shown in FIG. Figure 1 ;

[0052] Fig.11 yes Fig.10 A partial enlarged schematic diagram of the middle A part;

[0053] Fig.12 The internal structure of the handle shell of the fiber ring suture device of the present invention is shown in FIG. Figure 2 ;

[0054] Fig.13 yes Fig.12 It is a partial enlarged schematic diagram of part B;

[0055] Fig.14 It is a structural schematic diagram and a partial enlarged diagram of the first paddle in the fiber ring suture device of the present invention;

[0056] Fig.15 It is a schematic structural diagram of the second paddle in the fiber ring suture device of the present invention;

[0057] Fig.16 It is a schematic diagram of the connection structure between the second spring piece and the first trigger in the fiber ring suture device of the present invention;

[0058] Fig.17 This is a state diagram of the fiber ring suture device of the present invention before it is inserted into the fiber ring wound;

[0059] Fig.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] Fig.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] Fig. 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 at 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; 14 2. through-hole; 143. spine; 150. puncture needle; 151. puncture needle clamping part; 152. stopper; 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. clamping seat movable control member; 211. knob; 211 1. 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; 230, suture needle telescopic control member; 231, first trigger; 232, second trigger; 233, second tension spring; 234, third tension spring; 235, third spring; 236, spring piece 2; 2361, ball; 237, horizontal column 1; 238, horizontal column 2; 300, handle shell; 310, movable part; 311, take-up wheel; 312, marking block; 320, puncture needle baffle. 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] Example

[0065] See also Figure 1 A fiber ring suture device 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, thereby forming a purse-string suture pattern around the wound, which can meet the needs of suturing small and large area wounds at the same time.

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

[0067] See also Figures 2 to 9 Specifically, the suture needle assembly 100 includes a puncture piece and a clamping seat 140, the puncture piece includes a shuttle 110 and a push rod 120, a grab rod 130, a puncture needle 150 and a sheath 160 which are sequentially arranged from the inside to the outside, wherein the shuttle 110 is used to clamp the suture 180, the end of the suture 180 is wound around the take-up wheel 311 in the handle, the push rod 120 and the grab rod 130 are used to release and clamp the shuttle 110, one end of the puncture needle 150 has a blade and is used to puncture tissue; the sheath 160 is used to wrap the push rod 120, the grab rod 130 and the puncture needle 150, the push rod 120, the grab rod 130 and the puncture needle 150 can move in the sheath 160, and the sheath 160 is provided with a first opening 161, and the puncture piece can be extended or retracted in the first opening 161 through the suture needle control assembly 200.

[0068] In this embodiment, the suture needle assembly 100 also includes a movable rod 170, which 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 172 and a bent neck, wherein the head 171 and the rod 172 are arranged in parallel, and the bent neck is used to connect the head 171 and the neck 172.

[0069] See also Fig. 9 The suture needle control assembly 200 controls the movable rod 170 to move forward and backward, thereby driving the connecting member 190 to move forward and backward, and then driving the clamping seat 140 to straighten along the axial direction or pivot downward to 90° with the axial direction.

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

[0071] In this embodiment, a through portion 142 is provided at the lower portion of the clamping seat 140, and a spring sheet 141 is provided in the middle portion. The bottom of the spring sheet 141 extends to the through portion 142, and the bottom of the spring sheet 141 is an inclined surface, so that the spring sheet 141 can clamp the shuttle 110; in addition, a ridge 143 is provided on the bottom surface of the through portion 142 toward the center of the through portion 142, and a plurality of inclined surfaces and chamfers are formed on the ridge 143, and are used to provide guidance for the movement of the shuttle 110 and further fix the shuttle 110 after the shuttle 110 is clamped by the spring sheet 141 to prevent it from moving around.

[0072] See also Figure 5 In this embodiment, the shuttle 110 includes a conical passing portion 111 at the front end and a clamping portion 112 at the rear end. The conical passing portion 111 is hollow and forms a hollow portion, and the end of the suture 180 is clamped in the hollow portion; two ears 1121 protruding radially outward are symmetrically arranged on the clamping portion 112, and each ear 1121 is provided with two inclined surfaces 1122 inclined toward the center. A clamping groove 1111 is provided at the bottom of the conical passing portion 111 and is used to clamp with the above-mentioned ridge 143, so that the shuttle 110 is further fixed in the clamping seat 140.

[0073] 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.

[0074] See also Figure 7 and Figure 8 In this embodiment, two spherical protrusions 121 are symmetrically arranged on the circumferential surface of the distal end of the push rod 120, and a push rod clamping portion 122 is arranged at the proximal end of the push rod 120.

[0075] 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. The proximal end of the puncture needle 150 is provided with a stopper 152 and a puncture needle clamping portion 151 along the circumferential surface.

[0076] See also Figure 6 and Figure 7In this embodiment, the gripping rod 130 is hollow inside, and two windows 131 are symmetrically arranged at its distal end along the circumferential direction, and the two windows 131 can be correspondingly inserted into the two ears 1121 of the shuttle 110; two deep grooves 132 are also arranged along the axial direction on the inner surface of the gripping rod 130 connected with the above-mentioned two windows 131, and the depth of the deep groove 132 decreases gradually from the proximal end to the distal end, and two notches 133 are symmetrically arranged along the axial direction of the gripping rod 130 in the direction perpendicular to the above-mentioned windows 131, so that the gripping rod 1 The distal end of 30 is elastic, the push rod 120 is movably arranged inside the grab rod 130, and the two protrusions 121 are respectively slidably abutted against 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 protrusion 121 can open the distal end of the grab rod 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 grab rod 130 is restored and can re-capture the shuttle 110 with the help of the inclined surface 1122 of the shuttle 110; the proximal end of the grab rod 130 is provided with a grab rod clamping portion 134.

[0077] See also Figures 10 to 16 In this embodiment, the suture needle control assembly 200 includes a clamping seat movable control component 210, a suture needle rotation control component 220 and a suture needle telescopic control component 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 paddle 215, a second paddle 216, a blocking portion 219 and a pair of fixed plates 2110; wherein the knob 211 is fixedly connected to the rotating rod 212, the first paddle 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 and connected 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 relative proximal step and a distal step, and the movable rod 170 passes through the distal step of the blocking portion 219 and is connected to the proximal step The inner wall of the step is abutted against each other; 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 fixed plates 2110 are arranged in parallel and fixedly connected to the inner wall of the handle housing 300, and a column one and a column two are arranged between the fixed plates 2110; the second paddle 216 is sleeved on the column one and connected to the column two through the 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 contacts the second paddle 216 and forms a locking relationship. When the rotating rod 215 continues to rotate, the first paddle 215 and the second paddle 216 are disengaged and the locking relationship is released.

[0079] See also Fig.14 and Fig.15In this embodiment, a pair of fixing plates 2110 are fixedly connected to the inner wall of the handle housing 300, and a column 1 and a column 2 are arranged between the fixing plates 2110; the second paddle 216 is sleeved on the column 1 and connected to the column 2 through the first tension spring 218;

[0080] 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 a certain angle, the first paddle 215 contacts and forms a locking relationship with the second paddle 216. When the rotating rod 215 continues to rotate, the first paddle 215 and the second paddle 216 are disengaged and the locking relationship is released.

[0081] In this embodiment, a pinch bar 2111 is provided on the knob 211. When the pinch bar 2111 is rotated clockwise, the gear 213 rotates clockwise accordingly, thereby driving the rack 214 to move toward the proximal end. The rack 214 simultaneously drives the movable rod 170 to move backward, so that the clamping seat 140 gradually pivots downward, and the movement of the rack 214 gradually compresses the first spring 217. The first paddle 215 also rotates clockwise at the same time, gradually contacts the second paddle 216 during the rotation process, and continuously drives the second paddle 216 to rotate clockwise, thereby gradually stretching the first tension spring 218. When the pinch bar 2111 is rotated to be perpendicular to the axial direction of the sheath tube 160, the third chamfer 2161 in the second paddle 216 is inserted into the gap 2153 between the first chamfer 2151 and the second chamfer 2152 in the first paddle 215, and because the first spring acts on the first paddle 215, The first tension spring 218 exerts a force in the opposite direction on the second paddle 216, so a stable and balanced force can be formed between the third chamfer 2161 and the first chamfer 2151 and the second chamfer 2152, thereby maintaining stillness and allowing the clamping seat 140 to remain at 90° to the axial direction. When it is necessary to restore the clamping seat 140 to a state parallel to the axial direction, it is only necessary to rotate the pinch bar 2111 clockwise again to disengage the first paddle 215 from the second paddle 216. At this time, the rack 214 moves toward the distal end under the action of the elastic force of the first spring 217, thereby driving the movable rod 170 to move forward, so that the clamping seat 140 is restored to be parallel to the axial direction. At the same time, the gear 213, the rotating rod 212, the first paddle 215 and the knob 211 also rotate in the opposite direction to their original positions, and the second paddle 216 also returns to its original position under the action of the elastic force of the first tension spring 218.

[0082] See also Figures 10 to 13 In this embodiment, the handle housing 300 includes a movable portion 310 and a fixed portion 320. The fixed portion 320 is provided with a groove along the circumferential direction, and a circle of protrusions along the circumferential direction of the movable portion 310 is inserted into the circle of grooves.

[0083] In this embodiment, the suture needle rotation control component 220 includes a component for controlling the suture needle assembly 100 to rotate in the circumferential direction, including a ratchet 221, a one-way rotating rod 222 and a puncture needle guide 224; the ratchet 211 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, and a second spring 223 is arranged at the lower part of the end of the one-way rotating rod 222, and a second spring 223 is arranged at the lower part of the one-way rotating rod 222, and 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 inserted into the ratchet teeth of the ratchet 221, and a puncture needle guide 224 is arranged inside the ratchet 221, and the puncture needle 150 is arranged through the puncture needle guide 224, and the puncture needle guide 224 is fixedly connected to the movable part 310 by a snap-on manner.

[0084] Due to the structural limitation of the ratchet 221, the movable portion 310 can only rotate in the counterclockwise direction. In this embodiment, the ratchet 221 includes 6 ratchet teeth. Each rotation of the movable portion 310 can drive the suture needle assembly 100 to rotate 60° in the circumferential direction.

[0085] In this embodiment, six corresponding marking blocks 312 are disposed on the outer side wall of the movable portion 310 , and the marking blocks 312 correspond to the positions of the ratchet teeth of the ratchet wheel 221 one by one, thereby prompting the user the rotation position of the ratchet wheel 221 .

[0086] See also Fig.13 and Fig.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; 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 cross column 237; the grab bar 130 is clamped with the first trigger 231 through the grab bar clamping portion 134; the puncture needle 150 is connected to the first trigger 231 through the spring sheet 236, and one end of the spring sheet 236 is formed with a The protrusion is clamped in the puncture needle clamping part 151, the other end of the spring piece 236 is connected to a ball 2361, and the ball 2361 is clamped in the first trigger 231; a third spring 235 is also arranged between the proximal end of the puncture needle 150 and the grab rod clamping part 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 cross column 238; the push rod 120 is clamped with the second trigger 232 through the push rod clamping part 122.

[0087] In this embodiment, a puncture needle baffle 321 is further provided in the fixing portion 320, and correspondingly, a stop portion 152 is also provided on the puncture needle 150. When the puncture needle 150 moves forward a certain distance until the stop portion 152 abuts against the puncture needle baffle 321, the puncture needle 150 stops moving.

[0088] See also Figures 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 limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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: include: A suturing needle assembly (100), the suturing needle assembly (100) comprising a puncturing member, a clamping seat (140) and a sheath tube (160), the puncturing member being movably disposed in the sheath tube (160), the clamping seat (140) being movably disposed at the distal end of the sheath tube (160); the front end of the puncturing member being releasably connected to a shuttle (110), the shuttle (110) being provided with a suture (180); A suturing needle control assembly (200), the suturing 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 of the first position of the fiber ring to the second side, and from the second side of the second position of the fiber ring to the first side, wherein the clamping seat (140) is used to clamp the shuttle (110) at the second side of the fiber ring when the shuttle (110) is released; A handle shell (300) is used to accommodate the suture needle assembly (100) and the suture needle control assembly (200), and comprises a fixed portion (320) and a movable portion (310) movably connected to the fixed portion (320).

2. The fiber ring suture device according to claim 1, characterized in that: The puncture member comprises a push rod (120), a gripping rod (130) and a puncture needle (150) which are sequentially sleeved from the inside to the outside, and the shuttle (110) is releasably connected to the distal end of the gripping rod (130); The push rod (120) is provided with a plurality of protrusions (121) at the distal end and a push rod clamping portion (122) at the proximal end; The distal end of the grab bar (130) is symmetrically provided with a plurality of windows (131) along the circumferential direction, a plurality of notches (133) are provided along the axial direction, and a plurality of deep grooves (132) are provided on the inner wall of the distal end, the depths of the plurality of deep grooves (132) decrease gradually from the proximal end to the distal end, and a grab bar clamping portion (134) is provided at the proximal end of the grab bar (130); The distal end of the puncture needle (150) is provided with a blade portion, and the proximal end is provided with a puncture needle clamping portion (151).

3. The fiber ring suture device according to claim 1, characterized in that: The suture needle assembly (100) further comprises a movable rod (170), wherein the movable rod (170) comprises a head (171), a rod (172) and a curved neck, wherein the head (171) and the rod (172) are arranged in parallel; One end of the clamping seat (140) is pivotally connected to one end of the sheath tube (160), and the upper and middle part of the clamping seat (140) is connected to the head (171) via a connecting piece (190); The clamping seat (140) is provided with a spring sheet (141) in the middle, and a through portion (142) is provided at the lower portion. A ridge (143) is provided inside the through portion (142), and a plurality of inclined surfaces and chamfers are provided on the ridge (143).

4. The fiber ring suture device according to claim 1, characterized in that: The shuttle (110) comprises 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).

5. The fiber ring suture device according to claim 3, characterized in that: The suture needle control assembly (200) comprises a clamping seat movable control member (210), and the clamping seat movable control member (210) comprises a rotating rod (212), a gear (213), a rack (214), a first paddle (215), a second paddle (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) is meshed 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), 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 proximal step. A first spring (217) is provided 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), and 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 via 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 a certain angle, the first paddle (215) and the second paddle (216) form a locking relationship to stop; when the rotating rod (215) continues to rotate, the first paddle (215) and the second paddle (216) are disengaged and the locking relationship is released.

6. The fiber ring suture device according to claim 5, characterized in that: The first paddle (215) comprises a first chamfer (2151) and a second chamfer (2152) having 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) comprises a third chamfer (2161), and the third chamfer (2161) has an inclination direction different from that of the first chamfer (2151) and the second chamfer (2152); When the first paddle (215) and the second paddle (216) form a snap-fitting relationship, the third chamfer (2161) is snapped into the gap (2153).

7. The fiber ring suture device according to claim 1, characterized in that: The suture needle control assembly (200) further comprises a suture needle rotation control member (220), wherein the suture needle rotation control member (220) comprises a ratchet (221), a one-way rotation rod (222) and a puncture needle guide member (224); The ratchet (221) is fixedly connected to the fixed portion (320), and the puncture needle guide (224) is arranged in the ratchet (221) and is engaged with the movable portion (310); One end of the one-way rotating rod (222) is fixedly connected to the movable part (310), and the other end is inserted into the ratchet teeth of the ratchet wheel (221). A second spring (223) is provided at the lower part of the one-way rotating rod (222), and the second spring (223) is used to provide elastic restoring force to the one-way rotating rod (222).

8. The fiber ring suture device according to claim 4, characterized in that: The suture needle control assembly (200) further comprises a suture needle telescopic control member (230), wherein the suture needle telescopic control member (230) comprises 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 grabbing rod (130) and the puncture needle (150) to perform telescopic movement; The second trigger (232) is used to control the push rod (120) to perform telescopic movement; The end of the second trigger (232) is arranged behind the end of the first trigger (231).

9. The fiber ring suture device according to claim 8, characterized in that: The first trigger (231) is connected to one end of a second tension spring (233), and the other end of the second tension spring (233) is connected to a horizontal column (237); The grab bar (130) is clamped with the first trigger (231) via a grab bar clamping portion (134); The puncture needle (150) is connected to the first trigger (231) through a second spring piece (236), one end of the second spring piece (236) is formed with a protrusion and is clamped in the puncture needle clamping portion (151), the other end of the second spring piece (236) is connected to a ball (2361), and the ball (2361) is clamped in the first trigger (231); a third spring (235) is also provided between the proximal end of the puncture needle (150) and the grab bar clamping 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 crossbar (238); The push rod (120) is clamped with the second trigger (232) via a push rod clamping portion (122).

10. The fiber ring suture device according to claim 9, characterized in that: A puncture needle baffle (321) is also provided in the handle housing (300), and a stopper (152) is correspondingly provided on the puncture needle (150), and the puncture needle baffle (321) is used to resist the stopper (152).

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