Knotting-free continuous fiber ring stitching instrument

Abstract

The invention relates to a knotting-free continuous fiber ring stitching instrument which comprises a Y-shaped winding bar combination and a boosting needle tube combination. The Y-shaped winding bar combination comprises a suture line and a plurality of bars; the rods are sequentially wound on the suture line, and the distances between the adjacent rods are the same; the boosting needle tube combination comprises a shell, and a ratchet mechanism and a pawl are arranged on the upper portion in the shell. The pawl is connected with the ratchet mechanism through the spring, the ratchet mechanism is controlled by controlling the pawl through the finger, when the ratchet mechanism is clamped by the pawl, the ratchet mechanism can only rotate in one direction, and when the ratchet mechanism is not clamped by the pawl, the ratchet mechanism can rotate in two directions; and a needle and a sleeve are fixed at the lower part in the shell. According to the knotting-free continuous fiber ring stitching instrument, knotting can be avoided, a Y-shaped line bar combination is directly preset in the stitching instrument device, continuous knotting can be achieved only by holding a boosting needle tube combination by one person, rolling a hand wheel after the boosting needle tube combination is anchored to a fiber ring and continuously anchoring a bar to a specified position, operation is convenient, and continuous stitching is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fiber ring suture devices, in particular to a knot-free continuous fiber ring suture device. Background Art

[0002] Intervertebral disc herniation is one of the common clinical diseases, and the number of patients is increasing year by year. The most common cause of this disease is the degenerative changes of different degrees in the nucleus pulposus, annulus fibrosus and cartilage plate of various parts of the intervertebral disc, which lead to the rupture of the annulus fibrosus and the herniation of the nucleus pulposus under the action of external factors, resulting in a series of clinical symptoms such as low back pain or radiating pain in the lower limbs. In minimally invasive spinal surgery, medical staff usually make an incision on the human skin and set up a minimally invasive surgical channel (28mm in diameter * 50mm in depth) to reach the diseased intervertebral disc. Then the medical staff make a tiny incision (about 5-10mm) on the annulus fibrosus of the intervertebral disc, and then use special minimally invasive surgical instruments to pass through the minimally invasive channel and the annulus fibrosus incision in turn to perform further surgical operations such as nucleus pulposus removal. The annulus fibrosus incision remaining after the nucleus pulposus removal traditionally has no suitable surgical machinery for effective suturing and closure, which lays a hidden danger for the recurrence of postoperative intervertebral disc herniation.

[0003] Existing annulus sutures use minimally invasive puncture technology to suture the rupture of the annulus fibrosus after discectomy to restore its integrity and prevent the residual nucleus pulposus from protruding again. The core steps of the existing annulus fibrosus suture operation include puncture, suture delivery, and in vitro knotting.

[0004] The existing suture device, publication number CN217244575U, is based on the principle that two separate sutures are fixed on both sides of the annulus fibrosus incision through an anchoring structure, and then the two separate sutures are knotted by knotting technology to close the annulus fibrosus incision. The existing problem is that it is impossible to achieve continuous knotting, and a double-stranded line is required. First, one knot is tied, and then the knot is tied twice in vitro and then a knot pusher is used to tie the knot. The efficiency is low, and the cooperation of three people is required, which increases the extra amount and the number of assistants, and requires tacit cooperation to tie a suitable knot. If you are not careful, you may need to start over, and in severe cases, it may cause a waste of the entire consumables; in addition, this deep tissue knotting technology based on two different sutures is very difficult, and it is difficult to tie the knot tightly. It is easy to have a loose knot, or in order to tighten the knot with force, the suture breaks or the anchoring structure slips out, and continuous suturing cannot be achieved.

[0005] Therefore, a knot-free continuous fiber ring suture device is designed to solve the above problems. Summary of the invention

[0006] In order to overcome the above disadvantages, the present invention provides a knot-free continuous fiber ring suture device, comprising a Y-shaped wire rod assembly and a booster needle tube assembly;

[0007] The Y-shaped wire rod combination includes a suture and a number of rods; the rods are wound around the suture in sequence, and the distance between adjacent rods is the same;

[0008] The booster syringe combination includes a housing. Inside the housing, a ratchet mechanism and a pawl are arranged in the upper part; the pawl is connected to the ratchet mechanism by a spring. By controlling the pawl with fingers, the ratchet mechanism can be controlled. When the pawl catches the ratchet mechanism, the ratchet mechanism can only rotate in one direction. When the pawl does not catch the ratchet mechanism, the ratchet mechanism can rotate in two directions; a needle and a sleeve are fixed in the lower part of the housing. The sleeve is sleeved outside the needle, and both the upper and lower ends of the needle are exposed outside the sleeve;

[0009] A wire groove runs through the needle vertically. The Y-shaped wire rod combination passes through the wire groove. At the bottom end of the needle, the wire groove is provided with a needle hole which is oval-shaped and runs through the front and back; the rod of the lowermost Y-shaped wire rod combination passes through the needle hole, and the lowermost end of the needle is in a flat pointed shape.

[0010] Preferably, there are 4 - 6 rods, and the distance between adjacent rods is 1.5 cm.

[0011] Preferably, the connection part between the rod and the suture is located in the middle and lower part, that is, at two-thirds of the rod, and the included angle between the rod and the suture is 45°.

[0012] Preferably, the housing is divided into left and right parts, and is detachably connected through a card slot and a pin.

[0013] Preferably, the ratchet mechanism is an internal meshing ratchet mechanism. The ratchet mechanism is divided into three parts from left to right. The left side is a ratchet disc, and the inner wall of the circumferential side of the ratchet disc is provided with inner groove ratchet teeth. The right part is a hand wheel, and the middle part is sunken to form a winding groove. The Y-shaped wire rod combination is wound on the winding groove; a central hole runs through the ratchet mechanism from left to right;

[0014] The upper opening of the housing exposes the hand wheel for convenient finger operation;

[0015] A central shaft is arranged on the inner wall of the housing. The central hole is sleeved on the central shaft; one end of the pawl is a ratchet tooth, and the other end is a hinge shaft. Moreover, a block protruding outward is arranged on the front side at the other end; a limiting hole running through the front and back sides is arranged in the middle of the pawl;

[0016] A limiting rod is arranged on the inner wall of the housing; the limiting hole is sleeved on the limiting rod;

[0017] A spring connection head is arranged on the inner wall of the housing. One end of the spring is sleeved on the spring connection head, and the other end of the spring is sleeved on the hinge shaft of the pawl;

[0018] The housing is provided with an L-shaped shift hole, which is matched with the shift block, and the L-shaped shift hole is divided into two upper and lower gears. When the shift block is shifted to the upper gear, the ratchet teeth of the pawl are stuck in the ratchet teeth in the inner groove of the ratchet disk, and the hand wheel can only rotate in one direction, so that the ratchet mechanism can only rotate in one direction; when the shift block is shifted to the lower gear, the ratchet teeth of the pawl are not stuck in the ratchet teeth in the inner groove of the ratchet disk, and the hand wheel is repeatedly rolled, so that the ratchet mechanism can rotate in two directions;

[0019] Preferably, the outer hand-held gripping area of the housing is provided with four grooves adapted to four fingers of a hand.

[0020] Preferably, the needle is fixed to the first and second iron fixing rods by welding, and the first and second fixing rods are fixed in the housing by screws.

[0021] Preferably, the sleeve is fixed on an iron sleeve fixing plate by welding, and the sleeve fixing plate is fixed in the housing by a screw.

[0022] The beneficial effects of the present invention are:

[0023] The knot-free continuous fiber ring suture device described in the present invention can achieve knot-free operation. A Y-shaped wire rod combination is directly preset in the suture device. Only one person needs to hold the auxiliary needle tube combination and roll the hand wheel after anchoring to the fiber ring to continuously anchor the rod to the specified position to achieve continuous knotting. The operation is convenient and continuous suturing is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a Y-shaped wire rod combination;

[0025] Figure 2 It is an enlarged schematic diagram of the Y-type wire rod combination connection;

[0026] Figure 3 A three-dimensional diagram of a knot-free continuous fiber ring suture device;

[0027] Figure 4 A front view of a knot-free continuous fiber ring suture device;

[0028] Figure 5 for Figure 4 The lower part of the enlarged image;

[0029] Figure 6 A right side view of a knot-free continuous fiber ring suture device;

[0030] Figure 7 for Figure 6 The lower part of the enlarged image;

[0031] Figure 8Top view of a knotless continuous fiber loop suture device;

[0032] Figure 9 Is Figure 8 Cross-sectional view taken along line A-A of;

[0033] Figure 10 Stereogram of the left housing;

[0034] Figure 11 Right view of the left housing;

[0035] Figure 12 Front view of the left housing;

[0036] Figure 13 Stereogram of the ratchet mechanism;

[0037] Figure 14 Side view of the ratchet mechanism;

[0038] Figure 15 Stereogram of the pawl;

[0039] Figure 16 Stereogram of the ratchet mechanism and the pawl (locked state);

[0040] Figure 17 Side view of the ratchet mechanism and the pawl (locked state);

[0041] Figure 18 Stereogram of the ratchet mechanism and the pawl (released state);

[0042] Figure 19 Side view of the ratchet mechanism and the pawl (released state);

[0043] Figure 20 Schematic diagram of the position of the shifting block in the L-shaped shifting hole (released state, allowing wire to be paid out and retrieved);

[0044] Figure 21 Schematic diagram of the position of the shifting block in the L-shaped shifting hole (locked state, allowing only wire to be paid out);

[0045] Figure 22 Stereogram of the needle;

[0046] Figure 23 Is Figure 20 Enlarged view of the lower part of;

[0047] Figure 24 Is Figure 21 Cross-sectional view of;

[0048] Figure 25 Rear view of the lower part of the needle;

[0049] Wherein:

[0050] 1 - Rod;

[0051] 2 - Suture;

[0052] 3 - Housing; 31 - L-shaped toggle hole; 32 - Limit rod; 33 - Spring connector; 34 - Central axis;

[0053] 4 - Handwheel; 41 - Thread winding groove; 42 - Ratchet disc; 421 - Inner groove ratchet teeth; 43 - Central hole;

[0054] 5 - Sleeve;

[0055] 6 - Needle; 61 - Thread passing groove; 62 - Needle hole;

[0056] 7 - Pawl; 71 - Pusher block; 72 - Limit hole;

[0057] 8 - Spring; Detailed implementation mode

[0058] As Figure 3 and Figure 4 shown, a knot-free continuous fiber loop suture device includes a Y-shaped wire rod combination and a boosting needle tube combination;

[0059] As Figure 1 and Figure 2 shown, the Y-shaped wire rod combination includes a suture 2 and a plurality of rods 1; the rods 1 are successively wound around the suture 2, and the distance between adjacent rods is the same;

[0060] There are 4 - 6 rods 1, and the distance between adjacent rods 1 is 1.5 cm.

[0061] The connection part of the rod 1 and the suture 2 is located in the middle and lower part, that is, at two-thirds of the rod 1.

[0062] The included angle between the rod 1 and the suture 2 is 45°.

[0063] The boosting needle tube combination includes a housing 3. A ratchet mechanism and a pawl 7 are arranged in the upper part of the housing 3; the pawl 7 is connected to the ratchet mechanism through a spring 8, and the ratchet mechanism is controlled by controlling the pawl with fingers. When the pawl catches the ratchet mechanism, the ratchet mechanism can only rotate in one direction. When the pawl does not catch the ratchet mechanism, the ratchet mechanism can rotate in two directions; a needle 6 and a sleeve 5 are fixed in the lower part of the housing 3. As Figure 22 and Figure 24 shown, the sleeve 5 is sleeved outside the needle 6, and both the upper and lower ends of the needle 6 are exposed outside the sleeve 5;

[0064] As Figure 23 and Figure 24As shown, a wire groove 61 runs through the needle 6 vertically inside. The Y-shaped wire rod assembly passes through the wire groove 61. As Figure 25 shown, a vertically-through wire groove 61 is provided at the bottom end of the needle 6, and a needle hole 62 with an elliptical shape running through the front and back is provided in the wire groove 61; As Figure 5 , Figure 6 and Figure 7 shown, the rod of the Y-shaped wire rod assembly at the outermost end passes through the needle hole 62, and the outermost end of the needle 6 is in a flat pointed shape.

[0065] The housing 3 is divided into left and right parts and is detachably connected through a card slot and a card pin.

[0066] Four grooves adapted to the four fingers of the hand are provided in the grasping area of the outer hand-held part of the housing 3.

[0067] As Figure 13 and Figure 16 shown, the ratchet mechanism is an internal meshing ratchet mechanism. The ratchet mechanism is divided into three parts from left to right. The left side is a ratchet disc 42, and internal groove ratchet teeth 421 are provided on the inner wall of the circumferential side of the ratchet disc 42. The right part is a handwheel 4, and a wire winding groove 41 is formed by sinking in the middle. The Y-shaped wire rod assembly is wound around the wire winding groove 41; As Figure 14 shown, a central hole 43 runs through the ratchet mechanism from left to right;

[0068] As Figure 8 shown, an opening is provided on the housing 3 to expose the handwheel 4 for convenient finger operation;

[0069] As Figure 10 , Figure 11 and Figure 12 shown, a central shaft 34 is provided on the inner wall of the housing 3, and the central hole 43 is sleeved on the central shaft 34; As Figure 15 shown, one end of the pawl 7 is a ratchet tooth, the other end is a hinge shaft, and a dial block 71 protruding outward on the front side is provided at the other end; A limiting hole 72 running through the front and back sides is provided in the middle of the pawl 7;

[0070] A limiting rod 32 is provided on the inner wall of the housing 3; The limiting hole 72 is sleeved on the limiting rod 32;

[0071] A spring connection head 33 is provided on the inner wall of the housing 3. One end of the spring 8 is sleeved on the spring connection head 33, and the other end of the spring 8 is sleeved on the hinge shaft of the pawl 7;

[0072] The housing 3 is provided with an L-shaped shift hole 31, which is matched with the shift block 71. The L-shaped shift hole 31 is divided into two upper and lower gears. When the shift block 71 is shifted to the upper gear, the ratchet teeth of the pawl 7 are stuck in the ratchet teeth in the inner groove of the ratchet plate 42, and the hand wheel 4 can only rotate in one direction, so that the ratchet mechanism can only rotate in one direction; when the shift block 71 is shifted to the lower gear, the ratchet teeth of the pawl 7 are not stuck in the ratchet teeth in the inner groove of the ratchet plate 42, and the hand wheel 4 is repeatedly rolled, so that the ratchet mechanism can rotate in two directions;

[0073] like Figure 9 As shown, the needle 6 is fixed to the first fixing rod 63 and the second fixing rod 64 made of iron by welding, and the first fixing rod 63 and the second fixing rod 64 are fixed in the housing 3 by screws.

[0074] The sleeve 5 is fixed on an iron sleeve fixing plate 51 by welding, and the sleeve fixing plate 51 is fixed in the housing 3 by screws.

[0075] Directions:

[0076] Fiber ring suture device, when used, such as Figure 20 As shown, when the shift block 71 is shifted to the lower gear position of the L-shaped shift hole 31, the limit hole 72 is sleeved on the limit rod 32 to limit the movable distance of the pawl 7. The pawl 7 moves, and the spring 8 pulls the pawl 7. Figure 18 and Figure 19 As shown, at this time, the ratchet teeth of the pawl 7 are not stuck in the ratchet teeth in the inner groove of the ratchet disc 42, and the hand wheel 4 is repeatedly rolled so that the ratchet mechanism can rotate in two directions, which can release or reel in the line. At this time, one end of the Y-shaped wire rod combination is wound on the wire winding groove 41, and the other end passes through the wire groove 61 of the needle 6 and the needle hole 62, and the hand wheel 4 is rolled to straighten the line to prepare for suturing;

[0077] When the annulus fibrosus needs to be sutured, such as Figure 21 As shown, the shift block 71 is shifted to the upper gear position of the L-shaped shift hole 31, as shown in FIG. Figure 16 and Figure 17 As shown, at this time, the ratchet teeth of the pawl 7 are stuck in the ratchet teeth in the inner groove of the ratchet disk 42, so that the ratchet mechanism can only rotate in one direction, that is, it can only release the thread, and the needle 6 is inserted into the area to be sutured. At this time, the first rod 1 is anchored at the fiber ring to be sutured. At this time, the hand wheel 4 is rotated, and the wire winding groove 41 of the ratchet mechanism rotates, and the next rod 1 is put down and passed through the needle hole 62, and hung on one side of the needle hole 62 for use, and the suture of the next stitch is continued. The needle 6 is inserted into the second area to be sutured, and the second rod is anchored at the second fiber ring to be sutured, so that continuous suturing is achieved without knotting, and the anchoring of the following rods is completed in sequence.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0079] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0080] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A knot-free continuous fiber loop suture device, comprising a Y-shaped wire rod combination and a boosting syringe combination; The Y-shaped wire rod combination includes a suture (2) and a number of rods (1); the rods (1) are successively wound around the suture (2), and the distance between adjacent rods is the same; The boosting syringe combination includes a housing (3), and a ratchet mechanism and a pawl (7) are arranged in the upper part of the housing (3); the pawl (7) is connected to the ratchet mechanism through a spring (8), and the ratchet mechanism is controlled by controlling the pawl with fingers. When the pawl catches the ratchet mechanism, the ratchet mechanism can only rotate in one direction. When the pawl does not catch the ratchet mechanism, the ratchet mechanism can rotate in two directions; a needle (6) and a sleeve (5) are fixed in the lower part of the housing (3), the sleeve (5) is sleeved outside the needle (6), and both the upper and lower ends of the needle (6) are exposed outside the sleeve (5); A wire groove (61) runs through the upper and lower parts of the needle (6) internally, the Y-shaped wire rod combination passes through the wire groove (61), and a needle hole (62) with an elliptical shape of the needle hole running through the front and back is arranged in the wire groove (61) at the bottom end of the needle (6); the rod of the Y-shaped wire rod combination at the outermost end passes through the needle hole (62), and the outermost end of the needle (6) is in a flat pointed shape.

2. The continuous fiber loop suture device without knotting according to claim 1, wherein There are 4-6 rods (1), and the distance between adjacent rods (1) is 1.5 cm.

3. The continuous fiber loop suture apparatus without knotting according to claim 1, wherein The connection part of the rod (1) and the suture (2) is located in the middle and lower part, that is, at two-thirds of the rod (1), and the included angle between the rod (1) and the suture (2) is 45°.

4. The continuous fiber loop suture device without knotting according to claim 1, wherein The housing (3) is divided into left and right parts, and is detachably connected through a card slot and a needle.

5. The continuous fiber loop suture apparatus without knotting according to claim 1, wherein The ratchet mechanism is an internal meshing ratchet mechanism. The ratchet mechanism is divided into three parts from left to right. The left side is a ratchet disc (42), and internal groove ratchet teeth (421) are arranged on the inner wall of the circumferential side of the ratchet disc (42). The right part is a handwheel (4), and a wire winding groove (41) is formed by subsidence in the middle. The Y-shaped wire rod combination is wound on the wire winding groove (41); a central hole (43) runs through the ratchet mechanism from the left side to the right side; The upper opening of the housing (3) exposes the handwheel (4) for convenient finger operation; A central shaft (34) is arranged on the inner wall of the housing (3), and the central hole (43) is sleeved on the central shaft (34); one end of the pawl (7) is a ratchet tooth, and the other end is a hinge shaft, and a block (71) protruding outward on the front side is arranged at the other end; a limiting hole (72) running through the front and back sides is arranged in the middle of the pawl (7); A limiting rod (32) is arranged on the inner wall of the housing (3); the limiting hole (72) is sleeved on the limiting rod (32); A spring connector (33) is arranged on the inner wall of the housing (3), one end of the spring (8) is sleeved on the spring connector (33), and the other end of the spring (8) is sleeved on the hinge shaft of the pawl (7); The housing (3) is provided with an L-shaped shifting hole (31), which is matched with the shifting block (71). The L-shaped shifting hole (31) is divided into two upper and lower gears. When the shifting block (71) is shifted to the upper gear, the ratchet teeth of the ratchet pawl (7) are stuck in the ratchet teeth in the inner groove of the ratchet disc (42), and the hand wheel (4) can only rotate in one direction, so that the ratchet mechanism can only rotate in one direction; when the shifting block (71) is shifted to the lower gear, the ratchet teeth of the ratchet pawl (7) are not stuck in the ratchet teeth in the inner groove of the ratchet disc (42), and the hand wheel (4) is repeatedly rolled, so that the ratchet mechanism can rotate in two directions.

6. The continuous fiber loop suture device without knotting according to claim 1, characterized in that, The outer hand-held gripping area of the housing (3) is provided with four grooves adapted to four fingers of a hand.

7. A knotless continuous fiber loop suture device according to claim 1, characterized in that The needle (6) is fixed to a first iron fixing rod (63) and a second iron fixing rod (64) by welding, and the first fixing rod (63) and the second fixing rod (64) are fixed in the housing (3) by screws.

8. The continuous fiber loop suture device without knotting according to claim 1, characterized in that, The sleeve (5) is fixed on an iron sleeve fixing plate (51) by welding, and the sleeve fixing plate (51) is fixed in the housing (3) by a screw.

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