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 device comprises a suture needle assembly, and 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 sheathing canal which are 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 blocking 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, and the depths of the plurality of deep grooves decrease gradually from the proximal end to the distal end;

[0014] The distal end of the puncture needle is configured as a blade.

[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 lower part of the clamping seat is provided with a through portion, and the side wall of the through portion is provided with a plurality of spring pieces 1, and the spring pieces 1 include a first outward expansion portion, a narrowing portion, and a second outward expansion portion connected in sequence;

[0018] A ridge is provided inside the through portion, and a plurality of inclined surfaces and chamfers are provided on the ridge;

[0019] The shuttle comprises a conical passing portion, an annular portion and a clamping portion. The clamping portion is symmetrically provided with a plurality of ears protruding radially outward, and an inclined surface inclined toward the center is formed on the ears.

[0020] Optionally or preferably, the suture needle control assembly includes a clamping seat movable control member, and the clamping seat movable control member 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 protrusions are arranged on the outer peripheral surface of the knob, a plurality of corresponding second card slots are arranged on the inner surface of the handle shell, and the knob protrusions are matched and connected with the second card slots; a first spring is sleeved on the side of the rotating rod close to the knob, and the first spring is used to provide the knob with an elastic force in its axial direction;

[0022] The two 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 rotationally connected to the inner side wall of the handle housing through a transverse column.

[0023] Optionally or preferably, a second notch is provided at the lower portion of the rotating rod, a through slot 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 slot;

[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 axial elastic force to the transmission block.

[0025] 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;

[0026] 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;

[0027] 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 third spring is arranged at the lower part of the one-way rotating rod, and the third spring is used to provide 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, and the positions of the marking blocks are the same as the number of the ratchet teeth of the ratchet wheel, and the arrangement positions correspond to each other one by one.

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

[0030] The handle housing is provided with an opening, the first button is movably arranged in the opening, two spring pieces are arranged on both sides of the first button, and the two spring pieces are used to make the first button stuck 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 puncture needle to move telescopically;

[0031] The second button and the push cylinder are respectively used to control the push rod and the grab rod to perform telescopic movement.

[0032] Optionally or preferably, the inner wall of the fixing portion is movably connected to a first clamping strip, the push cylinder is movably arranged in the fixing portion and connected to 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 with the second clamping strip and forms a clamping state.

[0034] Optionally or preferably, a box-shaped platform is arranged in the push cylinder, a guide groove block is arranged in 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 passes through the push cylinder and the box-shaped platform in sequence 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 with a second button.

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

[0037] Optionally or preferably, a heart-shaped guide groove is provided on the guide groove block, the heart-shaped guide groove comprises a plurality of groove bodies with slopes, a step is provided between adjacent groove bodies, and a clamping block with a groove is provided in the middle of the heart-shaped guide groove; one end of the pull rod is fixedly connected to the box-type platform, and the other end is movably clamped in the heart-shaped guide groove;

[0038] A protruding step 2 is arranged on the outer side of the push cylinder, a protruding step 3 is arranged on the inner wall of the fixing portion, a sixth spring is arranged between the step 2 and the step 3, and the sixth spring is used to provide an axial elastic force to the push cylinder.

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

[0040] 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

[0041] Figure 1 It is a schematic diagram of the overall structure of the fiber ring suture device of the present invention;

[0042] Figure 2 It is a partial structural schematic diagram of a suture needle assembly in a fiber ring suture device of the present invention;

[0043] 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;

[0044] 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;

[0045] Figure 5 It is a schematic structural diagram of a shuttle in a fiber ring suture device of the present invention;

[0046] Figure 6 It is a schematic structural diagram of the distal end of the grabbing rod in the fiber ring suture device of the present invention;

[0047] Figure 7 It is a schematic structural diagram of the distal end of the push rod in the fiber ring suture device of the present invention;

[0048] Figure 8 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;

[0049] Fig. 9 It is a schematic structural diagram of a spring piece 1 in a fiber ring suture device of the present invention;

[0050] 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 ;

[0051] Fig.11 yes Fig.10 A partial enlarged schematic diagram of the middle A part;

[0052] 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 ;

[0053] Fig.13 yes Fig.12 A partial enlarged schematic diagram of the middle B part;

[0054] Fig.14 yes Fig.12 A partial enlarged schematic diagram of the middle C part;

[0055] Fig.15 The internal structure of the handle shell of the fiber ring suture device of the present invention is shown in FIG. Figure 3 (Omit the outer wall of the push cylinder);

[0056] Fig.16 It is a top view of the handle housing of the fiber ring suture device of the present invention;

[0057] Fig.17 It is a schematic diagram of the internal structure of the guide box type platform in the fiber ring suture device of the present invention;

[0058] Fig.18 It is a structural schematic diagram of the guide groove block in the fiber ring suture device of the present invention;

[0059] Fig.19 This is a state diagram of the fiber ring suture device of the present invention before it is inserted into the fiber ring wound;

[0060] Fig. 20 It 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;

[0061] Fig.21 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;

[0062] Fig. 22 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.

[0063] In the figure: 100, suture needle assembly; 110, shuttle; 111, conical penetrating portion; 1111, card slot 1; 112, annular portion; 113, card connection portion; 1131, ear portion; 1132, inclined surface; 120, push rod; 121, protruding portion; 123, blocking portion; 130, grab bar; 131, window; 132, deep groove; 133, notch 1; 140, clamping seat; 141, spring piece 1; 1411, first outer expansion portion; 1412, narrowing portion; 1413, second Outward expansion portion; 142, through portion; 143, spine; 150, puncture needle; 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; 2111, pinch bar; 2112, knob bump; 212, rotating rod; 2121, notch 2; 213, Transmission rod; 214, transmission block; 215, first spring; 216, second spring; 217, cross column; 218, guide block; 220, suture needle rotation control member; 221, ratchet; 222, one-way rotation rod; 223, third spring; 224, puncture needle guide; 230, suture needle telescopic control member; 231, first button; 2311, spring piece 2; 232, second button; 233, push cylinder; 2331, box-type table; 2332, guide groove block; 2332a, heart shaped guide groove; 2332b, 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, take-up wheel; 312, marking block; 313, clamping groove two; 320, fixed part; 321, puncture needle baffle; 322, opening; 323, step three. DETAILED DESCRIPTION

[0064] 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.

[0065] Example

[0066] See also Figure 1A 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.

[0067] 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 .

[0068] See also Figures 2 to 9 The above-mentioned 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, and 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 above-mentioned 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. The above-mentioned suture needle control assembly 200 enables the above-mentioned puncture piece to extend or retract in the first opening 161.

[0069] 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 above-mentioned head 171 and neck 172.

[0070] See also Figure 8 The movable rod 170 is controlled to move forward and backward through the suture needle control assembly 200, thereby driving the connecting piece 190 to move forward and backward, and then driving the clamping seat 140 to straighten axially or pivot downward to 90° with the axial direction; in this embodiment, the connecting piece 190 includes a connecting rod 191 and a connecting rod 2 192, wherein one end of the connecting rod 191 is movably connected to the clamping seat 140 through the connecting rod 2 192, and the other end is fixedly connected to the movable rod 170.

[0071] In this embodiment, a through portion 142 is formed at the lower portion of the clamping seat 140, and a spring piece 141 is disposed on each of the two side walls of the through portion 142. Fig. 9The spring piece 141 includes a first outward expansion portion 1411, a narrowing portion 1412 and a second outward expansion portion 1413 connected in sequence, and the spring piece 141 is used to clamp the shuttle 110 in the clamping seat 140; in addition, the bottom surface of the through portion 142 is provided with a ridge 143 facing the center of the through portion 142, and the ridge 143 is provided with a plurality of inclined surfaces and chamfers, thereby providing a guide for the movement of the shuttle 110 and further fixing the shuttle 110 after the shuttle 110 is clamped by the spring 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 1122 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 14121 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 A slot 1111 is provided at the bottom of the conical passing portion 111 along the axial direction. The grab bar 130 is hollow inside. Two windows 131 are symmetrically provided 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 inserted into the two windows 131. Two deep grooves 132 are provided along the circumferential direction on the inner surface where the grab bar 130 connects with the two windows 131. The depth of the deep groove 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 1122 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 Fig.18 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.

[0080] Specifically, the clamp seat movable 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 protrusions 2112 are symmetrically arranged on the outer peripheral surface of the knob 211, and an L-shaped card slot 2 313 is arranged on the inner surface of the handle housing 300, and the knob protrusion 2112 can move in the L-shaped card slot 2 313 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, and a notch 220 can be arranged at the lower part of the rotating rod 212 121, one end of the transmission rod 213 is clamped in the above-mentioned notch 2121, the middle part of the transmission rod 213 is rotatably connected to the inner 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 is clamped in a through groove 2141 provided on the transmission block 213; the transmission block 213 is fixedly connected to the movable rod 170 through one end, and the other end is movably clamped in the handle housing 300 through a guide block 218, and a second spring 216 is provided on the guide sleeve 219, and the second spring 216 is used to provide an elastic force in its axial direction to the transmission block 214.

[0081] In this embodiment, a pinch bar 2111 is provided on the knob 211; when the knob protrusion 2112 is at the top of the L-shaped slot 313, the clamping seat 140 is parallel to the sheath tube 160, and when the knob 211 is pressed down and rotated so that the knob protrusion 2112 is inserted into the bottom of the slot 313, the rotating rod 212 moves downward, driving the transmission rod 213 to push the transmission block 214 backward, thereby pulling the movable rod 170 backward, so that the clamping seat 140 pivots downward 90°, thereby being perpendicular to the axis of the sheath tube 160.

[0082] In this embodiment, the handle housing 300 includes a movable portion 310 and a fixed portion 320 , wherein the fixed portion 320 is provided with a groove along the axial direction, and a circle of protrusions along the axial direction of the movable portion 310 is inserted into the circle of grooves.

[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 includes a ratchet 221, a one-way rotating rod 222 and a puncture needle guide 224; wherein the ratchet 221 is fixedly arranged on the end face of the fixed portion 320, 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 221, and 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, and the puncture needle guide 224 is fixed to the movable part 310 by a snap-fitting manner. Due to the structural limitation of the ratchet 221, the movable part 310 can only rotate in the counterclockwise direction; in this embodiment, the ratchet 221 includes 6 ratchet teeth. Each rotation of the movable part 310 drives the suture needle assembly 200 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 component 230 includes a first button 231, a second button 232 and a push cylinder 233; a dumbbell-shaped opening 322 is axially opened on the upper side of the fixed portion 320, and the first button 231 is movably arranged in the opening 322 and fixed to the proximal end of the puncture needle 150 to control the telescopic movement of the puncture needle 150.

[0086] In this embodiment, two spring pieces 2311 are disposed on both sides of the first button 231 , and the first button 231 can be clamped at two ends of the dumbbell-shaped opening 322 through the two spring pieces 2311 .

[0087] The inner wall of the fixing portion 320 is movably connected to a first clamping strip 236 via a connecting rod. The end of the first clamping strip 236 is hook-shaped. A fourth spring 238 is disposed below the first clamping strip 236 and the fourth spring 238 contacts the hook-shaped end of the first clamping strip 236 .

[0088] A push cylinder 233 is movably provided at the rear of the fixed part 320, and the push cylinder 233 can move forward and backward in the fixed part 320. The second clamping strip 237 is provided 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 clamping state.

[0089] The end of the grab rod 130 extends from the front end of the push cylinder 223 into the push cylinder 223 and is fixed to the push cylinder 223. The front end of the push rod 120 enters the push cylinder 223. A blocking portion 123 is provided at the proximal end of the push rod 120. A fifth spring 239 is provided between the blocking portion 123 and the inner side of the end surface of the push cylinder 233.

[0090] In this embodiment, a box-shaped platform 2331 is also provided in the push cylinder, and the end of the push rod 120 extends into the box-shaped platform 2331 and abuts against the guide groove block 2332 provided in the box-shaped platform 2331. A fifth spring 239 is provided 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, and the heart-shaped guide groove 2332a includes at least three sections of groove bodies with slopes, and a 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-type table 2331, and the other end is movably clamped in the above-mentioned heart-shaped guide groove 2332a.

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

[0093] See also Figures 19 to 22 The following is a detailed description of the working process of the fiber ring suture device:

[0094] 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 hole is located outside the rupture;

[0095] 2. Press the knob 211 and rotate it counterclockwise, so that the knob protrusion 2112 is inserted into the bottom of the second L-shaped slot 313, so that the clamping seat is bent 90°;

[0096] 3. Slide the first button 231 forward until the spring piece 2311 clamps the front end side wall of the dumbbell-shaped opening 322, and the puncture needle 150 moves forward and punctures the fiber ring at the edge of the fiber ring rupture. Then keep the second button 232 stationary (at this time, the pull rod 235 is clamped into the apex position of the clamping block 2332c) and push the push cylinder 233 forward, so that the grab rod 130 and the shuttle 110 move forward and pass through the fiber ring from the puncture needle 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 140. At this time, the first clamping strip 236 and the second clamping strip 237 are clamped with each other to fix the push cylinder 233. Then press the second button 232, and the pull rod 235 moves backward along the guide groove and is clamped into a position opposite to the apex. This process causes the guide groove block 2332 to move forward to push the push rod 1 20 moves forward, and the two spherical protrusions 121 at the distal end of the push rod 120 move forward in the two deep grooves 132 of the grab bar 130. Since the depths of the two deep grooves 132 decrease gradually from the back to the front, when the push rod 120 moves to the front end, the grab bar 130 can be stretched open. At this time, the first button 231 is slid backward until the second spring piece 2311 clamps the rear end side wall of the dumbbell-shaped opening 322, and the puncture needle 150 is withdrawn into the first opening 161. At the same time, the lower end of the first button 231 presses the first clamping strip 236 downward to make the first clamping strip 236 disengage from the second clamping strip 237. The push cylinder 233 moves backward under the action of the elastic force of the sixth spring 2310, thereby driving the grab bar 130 and the push rod 120 to withdraw into the first opening 161, and the shuttle 110 is left in the clamping seat 140, so that the suture 180 penetrates the fiber ring from the first position;

[0097] 4. Rotate the front movable part 310 of the handle housing 300 or the handle as a whole counterclockwise, so that the clamping seat 140 rotates the shuttle 110 to a corresponding angle in the wound, slide the first button 231 forward, so that the puncture needle 150 punctures the fiber ring at the edge of the wound at a new position, press the second button 232, so that the pull rod 235 returns to the position of the apex to retract the push rod 120 a certain distance, push the push cylinder 233 forward, the grab rod 130 enters the wound through the new position and is stuck in the two ears 1131 of the shuttle 110, slide the first button 231 backward, the puncture needle 150, the grab rod 130 and the shuttle 110 withdraw together, and the shuttle 110 passes through the second position with the suture 180;

[0098] 5. Continue to rotate the front movable portion 310 of the handle housing 300 counterclockwise to place the clamping seat 140 in another new position, and repeat the above steps of inserting and pulling out the suture until the preset wiring is completed. Finally, pull the suturer to tighten the thread ends at both ends 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 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.

[0100] 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 blocking portion (123) 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, and the depths of the plurality of deep grooves (132) decrease gradually from the proximal end to the distal end; The distal end of the puncture needle (150) is configured as a blade.

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 lower part of the clamping seat (140) is provided with a through portion (142), and a plurality of spring pieces (141) are arranged on the side wall of the through portion (142), and the spring pieces (141) include a first outward expansion portion (1411), a narrowing portion (1412) and a second outward expansion portion (1413) which are connected in sequence; A ridge (143) is provided inside the through portion (142), and a plurality of inclined surfaces and chamfers are provided on the ridge (143); The shuttle (110) comprises a conical passing portion (111), an annular portion (112) and a clamping portion (113); the clamping portion (113) is symmetrically provided with a plurality of ears (1131) protruding radially outward; and the ears (1131) are formed with inclined surfaces (1122) inclined toward the center.

4. 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 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 protrusions (2112) are arranged on the outer peripheral surface of the knob (211); a plurality of corresponding second card slots (313) are arranged on the inner surface of the handle housing (300); the knob protrusions (2112) are matched and connected with the second card slots (313); a first spring (215) is sleeved on the side of the rotating rod (212) close to the knob (211); the first spring (215) is used to provide the knob (211) with an elastic force in its axial direction; The two 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 wall of the handle housing (300) via a transverse column (217).

5. The fiber ring suture device according to claim 4, characterized in that: The lower part of the rotating rod (212) is provided with a second notch (2121), the transmission block (214) is provided with a through slot (2141), 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 (170), 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).

6. 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 third spring (223) is provided at the lower part of the one-way rotating rod (222), and the third spring (223) is used to provide elastic force to the one-way rotating rod (222).

7. The fiber ring suture device according to claim 2, 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 button (231), a second button (232) and a push cylinder (233); The handle housing (300) is provided with an opening (322), the first button (231) is movably arranged in the opening (322), and two spring pieces (2311) are arranged on both sides of the first button (231), and the two spring pieces (2311) are used to make the first button (231) stuck at the two 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 puncture needle (150) to move telescopically; The second button (232) is used to control the push rod (120) to perform telescopic movement, and the push cylinder (233) is used to control the push rod (120) and the grab bar (130) to perform telescopic movement.

8. The fiber ring suture device according to claim 7, characterized in that: The inner wall of the fixing portion (320) is movably connected to a first clamping strip (236); the push cylinder (233) is movably arranged in the fixing portion (320) and connected to a second clamping strip (237); a fourth spring (238) is arranged below the first clamping strip (236); 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 tube (233), and when the push tube (233) moves forward, the first clamping strip (236) contacts the second clamping strip (237) and forms a clamping state.

9. The fiber ring suture device according to claim 7, characterized in that: A box-shaped platform (2331) is arranged in the push cylinder (233), a guide groove block (2332) is arranged in 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) passes through the push cylinder (233) and the box-shaped platform (2331) in sequence 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 with a second button (232); The blocking portion (123) is located between the push tube (233) and the box-shaped platform (2331), and a seventh spring (234) is provided between the blocking portion (123) and the inner side of the end surface of the push tube (233).

10. The fiber ring suture device according to claim 9, characterized in that: The guide groove block (2332) is provided with a heart-shaped guide groove (2332a), the heart-shaped guide groove (2332a) comprises a plurality of groove bodies with slopes, a step (2332c) is provided between adjacent groove bodies, and 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 platform (2331), and the other end is movably clamped in the heart-shaped guide groove (2332a); A protruding step 2 (2333) is provided on the outer side of the push cylinder (233), a protruding step 3 (323) is provided on the inner wall of the fixing portion (320), a sixth spring (2310) is provided between the step 2 (2333) and the step 3 (323), and the sixth spring (2310) is used to provide an axial elastic force to the push cylinder (233).

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