Meniscus suture system

Abstract

The utility model provides a meniscus suture system, and relates to the field of medical equipment. The meniscus suturing system comprises a puncture needle, the puncture needle is provided with a tip end used for puncturing a meniscus body, a thread clamping groove is formed in the peripheral face of the puncture needle, the thread clamping groove and the tip end are arranged at intervals, and the thread clamping groove is used for positioning a suture, so that the puncture needle can drive the suture to penetrate into the meniscus body or penetrate out of the meniscus body. The suture system is simple in structure, small in number of tools and low in operation difficulty, a knotting structure can be prefabricated before an operation, the knotting operation difficulty after the operation is reduced, the operation time is shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a meniscus suturing system. Background Art

[0002] Meniscus injury is a common disease. The current suturing techniques include full-inside, inside-outside, and outside-inside suturing techniques. At present, there are many suturing product component tools related to the outside-in suturing technology, which generally require five tools to be used together. The incision needs to be sutured and the operation is cumbersome and time-consuming. Another suturing product component for outside-in suturing is to use an "epidural puncture needle" for arthroscopic wire passing. This surgical operation and tools are two pieces, and a PDS line is required as an auxiliary wire passing. The incision needs to be sutured and the operation is cumbersome and time-consuming.

[0003] The inventors have found that the suture products in the prior art have at least the following disadvantages:

[0004] There are many tool components, which makes operation inconvenient; threading is cumbersome and requires knotting after surgery, and surgical consumables are long. Utility Model Content

[0005] The purpose of the utility model is to provide a meniscus suturing system, which can simplify the structure, reduce the number of tools, reduce the difficulty of operation, and can prefabricate the knotting structure before the operation, reduce the difficulty of knotting operation after the operation, shorten the operation time, and improve the operation efficiency.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides a meniscus suturing system, comprising:

[0008] A puncture needle having a tip for puncturing a meniscus body, wherein a wire retaining groove spaced apart from the tip is arranged on the outer peripheral surface of the puncture needle, and the wire retaining groove is used to position the suture so that the puncture needle can drive the suture to penetrate into or out of the meniscus body.

[0009] In an optional embodiment, the wire clamping slot has a relative slot opening and a slot bottom wall, the width of the slot opening is smaller than the width of the slot bottom wall, and the width direction of the slot opening and the width direction of the slot bottom wall are both consistent with the extension direction of the puncture needle.

[0010] Based on the above scheme, by setting the width of the slot to be smaller than the width of the bottom wall of the slot, when the suture enters the wire holding slot from the slot, the suture can move to the position of the bottom wall of the slot and contact the side wall of the wire holding slot as the puncture needle moves. The suture and the slot are staggered, and the suture is not easy to fall out of the wire holding slot from the slot. The positioning of the suture and the puncture needle is more secure, and it is not easy to fall off during the operation, thereby reducing the difficulty of the operation and improving the efficiency of the operation.

[0011] In an optional embodiment, an arc-shaped outer protrusion is provided on the outer peripheral surface of the puncture needle, the arc-shaped outer protrusion is arranged opposite to the wire clamping groove, and the puncture needle forms a thickened structure at the arc-shaped outer protrusion.

[0012] Based on the above scheme, the thickness of the puncture needle is thicker at the position of the arc-shaped outer convex part. That is to say, after the wire clamping slot is opened, the thickness of the puncture needle is thinned at the position of the wire clamping slot. During the use of the puncture needle, it will be subjected to the external force applied by the suture and the meniscus body. The position where the wire clamping slot of the puncture needle is located is a weak link. By thickening the position, the structural strength of the puncture needle at the wire clamping slot can be improved, thereby improving the stability of the puncture needle, making puncture safer and extending the service life of the puncture needle.

[0013] In an optional embodiment, the number of the wire-holding slots is two, and the two wire-holding slots are arranged at intervals in the extension direction of the puncture needle.

[0014] Based on the above scheme, when using the puncture needle to drive the suture to suture the meniscus body, the suture needs to be inserted into the meniscus body first, and then one end of the suture needs to be passed out from the meniscus body. In this way, the two wire clamping grooves are used to position the suture when the suture is in different stages, which is convenient for operation.

[0015] In an optional embodiment, the two wire clamping grooves are located on the same side of the puncture needle.

[0016] Based on the above solution, the positions of the two wire slots are close to facilitate processing and design.

[0017] In an optional embodiment, each of the wire-holding slots is provided with an inclined slot wall, the inclined directions of the inclined slot walls of the two wire-holding slots are opposite, and the inclined slot wall of the wire-holding slot close to the tip of the two wire-holding slots is the front end slot wall; one side of the front end slot wall close to the tip is located on the outer peripheral surface of the puncture needle, and the other side is inclined toward the middle of the puncture needle.

[0018] Based on the above scheme, when the puncture needle is used to drive the suture into the meniscus body, the suture is positioned in the wire retaining groove close to the tip, and the suture is not easy to leave the wire retaining groove during the puncture process. After the suture is inserted into the meniscus body, the suture can easily leave the wire retaining groove from the oblique groove wall; similarly, when the puncture needle is used to pass the part of the suture inserted out of the meniscus body, the suture is positioned in the wire retaining groove away from the tip, and the suture is not easy to leave the wire retaining groove during the puncture process. After the suture is passed out of the meniscus body, the suture can easily leave the wire retaining groove from the oblique groove wall.

[0019] In an optional embodiment, the two wire clamping grooves are located on opposite sides of the puncture needle.

[0020] Based on the above solution, the two wire clamping grooves are distributed on different sides, making puncture more convenient.

[0021] In an optional embodiment, the meniscus suturing system also includes a protective cover and a handle, the puncture needle is slidably inserted into the protective cover, and the tip of the puncture needle has a first position extending out of the protective cover and a second position retracted into the protective cover that can be switched between each other; the handle is unlockably connected to the protective cover, and the puncture needle is installed on the handle; when the handle is in an unlocked state, the handle can drive the puncture needle to slide relative to the protective cover to adjust the position of the tip relative to the protective cover.

[0022] Based on the above scheme, before puncture, the tip of the puncture needle is in the first position extending out of the protective cover, the tip can smoothly penetrate into the meniscus body, and the protective cover can limit the depth of the tip inserted into the meniscus body, reducing the probability of medical accidents. Since the position of the protective cover relative to the puncture needle is adjustable, the maximum depth of the puncture needle penetrating into the meniscus body can be adjusted as needed, which is flexible to use, has a wide range of uses, and is highly safe to use.

[0023] In an optional embodiment, the meniscus suture system also includes a suture, which cooperates with the puncture needle, and the suture is partially rolled to form a plurality of preformed knotted loops. After the suture is positioned on the meniscus body, the first end and the second end of the suture are exposed outside the meniscus body, and the first end of the suture can pass through the plurality of preformed knotted loops in sequence from the first end to the second end to form a fixed knot on the outside of the meniscus body.

[0024] Based on the above scheme, by setting a prefabricated knotting ring before puncture, the difficulty of setting the knotting ring is reduced, and during the puncture process, the prefabricated knotting ring is always outside the meniscus body, which will not affect the puncture and will not fail due to the puncture. When the puncture is completed, the first end of the suture is passed through multiple prefabricated knotting rings from the corresponding side in sequence, and then the first end and the second end of the suture are pulled to form a fixed knot on the outside of the meniscus body. The operation is easy and convenient, which saves the operation steps of setting the knotting ring on site after the puncture is completed, shortens the operation time, and improves the operation efficiency.

[0025] In an optional embodiment, the plurality of prefabricated knotted rings are sleeved on the outside of the protective sleeve, or the plurality of prefabricated knotted rings are sleeved on the outside of the pull wire ring, and the pull wire ring is sleeved on the outside of the protective sleeve.

[0026] Based on the above scheme, multiple prefabricated knotted rings can be positioned through a protective cover or through a pull wire ring. The positioning methods are diverse and can be selected as needed to adapt to different surgical scenarios and are flexible to use.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] In summary, the meniscus suturing system provided in this embodiment, when suturing the meniscus body, firstly positions the suture in the thread retaining groove of the puncture needle, then uses the puncture needle to pierce the meniscus body from the outside of the meniscus body, and makes the thread retaining groove enter the meniscus body to bring the suture into the meniscus body, and the suture entering the inside of the meniscus body is folded to form a double-stranded line shape, and the two free ends of the suture are both located on the outside of the meniscus body. Then, the suture is separated from the thread retaining groove and the puncture needle is withdrawn. Next, the tip of the puncture needle is used to pierce the meniscus body from the outside of the meniscus body at a set distance, and the two strands of suture located inside the meniscus body are clamped into the clamping groove, and then the two strands of suture are driven to withdraw from the meniscus body together, so that the two strands of suture are located outside the meniscus body, and the suture is pulled so that one free end of the suture moves from the outside of the meniscus body to the inside of the meniscus body, and then moves from the inside to the outside of the meniscus body. In this way, both ends of the suture are located outside the meniscus body, and the prefabricated knotting ring is used for subsequent knotting operations. The suturing system has few components, and the entire operation process is simple and fast, with low difficulty, short operation time, and high operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of a meniscus suturing system from one perspective according to an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of a meniscus suturing system from another perspective of an embodiment of the utility model;

[0032] Figure 3 A schematic diagram of a puncture needle according to an embodiment of the utility model;

[0033] Figure 4 A schematic diagram of a modified example of the puncture needle of the embodiment of the utility model;

[0034] Figure 5 A schematic diagram of another modified example of the puncture needle of the embodiment of the utility model;

[0035] Figure 6 It is a schematic diagram of another modified example of the puncture needle of the embodiment of the utility model;

[0036] Figure 7 A schematic diagram of a suture and a pull-wire loop according to an embodiment of the present utility model;

[0037] Figure 8 The present invention is a schematic diagram of the application process of the meniscus suturing system according to an embodiment of the present invention.

[0038] icon:

[0039] 001-meniscus body; 011-first puncture position; 012-second puncture position; 100-puncture needle; 110-tip; 120-cable clamping groove; 130-arc-shaped outer protrusion; 140-accommodating groove; 150-oblique groove wall; 200-protective cover; 210-anti-slip protrusion; 300-handle; 400-suture; 401-prefabricated knotting ring; 410-first end; 420-second end; 430-first intersection; 440-second intersection; 450-third intersection; 500-pull wire ring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 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.

[0046] In the prior art, a large number of suture product components are used in meniscus suture surgery, which is inconvenient to operate, and knotting is performed on site after the surgery, which is difficult, time-consuming and inefficient.

[0047] In view of this, the designer provides a meniscus suture system with a simple structure, a small number of components, easy operation, and a prefabricated knotting structure. After the operation, the knot can be tied by directly pulling the suture 400, which reduces the difficulty of the operation, shortens the operation time, and improves the efficiency of the operation.

[0048] Please combine Figure 1 or Figure 2 In this embodiment, the meniscus suturing system includes a puncture needle 100, which has a tip 110 for piercing the meniscus body 001. The outer peripheral surface of the puncture needle 100 is provided with a wire retaining groove 120 arranged at intervals with the tip 110. The wire retaining groove 120 is used to position the suture 400 so that the puncture needle 100 can drive the suture 400 to penetrate into the meniscus body 001 or out of the meniscus body.

[0049] Based on the above, the working principle of the meniscus suturing system provided in this embodiment is as follows:

[0050] Please combine Figure 8 When suturing the meniscus body 001, first position the suture 400 in the thread-locking groove 120 of the puncture needle 100, then use the puncture needle 100 to pierce the meniscus body 001 from the first puncture position 011 outside the meniscus body 001, and make the thread-locking groove 120 enter the meniscus body 001 to bring the suture 400 into the meniscus body 001. The suture 400 entering the inside of the meniscus body 001 is folded to form a double-stranded line shape, and the two free ends of the suture 400, namely the first end 410 and the second end 420, are both located outside the meniscus body 001. Then, separate the suture 400 from the thread-locking groove 120 inside the meniscus body 001, and withdraw the puncture needle 100. Next, at a second puncture position 012 set at a distance from the first puncture position 011, the tip 110 of the puncture needle 100 is used to pierce the meniscus body 001 from the outside of the meniscus body 001 again, and the two strands of suture 400 located on the inside of the meniscus body 001 are clamped into the wire clamping groove 120, and then the two strands of suture 400 are driven to withdraw from the meniscus body 001 together, so that the two strands of suture 400 are located on the outside of the meniscus body 001, and the suture 400 is pulled so that the first end 410 of the suture 400 moves from the outside of the meniscus body 001 to the inside of the meniscus body 001 before the first puncture position 011, and moves from the inside of the meniscus body 001 to the outside of the meniscus body 001 at the second puncture position 012. In this way, the first end 410 and the second end 420 of the suture 400 are both located on the outside of the meniscus body 001, and the prefabricated knotting ring 401 can be used for subsequent knotting operations. The suturing system has few parts, and the whole operation process is simple and quick, with low difficulty, short operation time and high operation efficiency.

[0051] The following embodiments illustrate the details of the meniscus suturing system of the embodiments of the present application by way of examples.

[0052] Please combine Figure 1-Figure 2In this embodiment, the meniscus suturing system includes a puncture needle 100, a protective cover 200, a handle 300 and a suture 400. The puncture needle 100 is inserted into the protective cover 200, and the puncture needle 100 can slide back and forth relative to the protective cover 200 in the length direction of the protective cover 200, thereby adjusting the position of the tip 110 of the puncture needle 100 relative to the front end of the protective cover 200, so that the tip 110 of the puncture needle 100 can switch between a first position and a second position. When in the first position, the tip 110 extends out of the front end of the protective cover 200, and the tip 110 can penetrate into the meniscus body 001 to perform a puncture operation. When in the second position, the tip 110 of the puncture needle 100 retracts into the protective cover 200, which can not only protect the tip 110 from being damaged, but also pull the suture 400, which is conducive to tying the suture 400 after the operation. The tail end of the puncture needle 100 opposite to the tip 110 passes through the protective cover 200 and then extends out of the tail end of the protective cover 200. In addition, the tail end of the puncture needle 100 is connected to the handle 300, and the handle 300 and the protective cover 200 are unlockably matched. In other words, when the handle 300 and the protective cover 200 are locked, the handle 300 and the protective cover 200 will not move relative to each other, so that the puncture needle 100 will not slide relative to the protective cover 200, and the puncture operation can be performed normally. When the puncture needle 100 needs to be slid, the lock between the handle 300 and the protective cover 200 is released, and the handle 300 can drive the puncture needle 100 to move relative to the protective cover 200. The suture 400 has two free ends, namely a first end 410 and a second end 420. Part of the suture 400 is rolled to form a plurality of prefabricated knotting rings 401. When the operation is completed, the first end 410 or the second end 420 is inserted into the plurality of prefabricated knotting rings 401, and the knotting is completed by pulling the first end 410 and the second end 420. The operation is convenient.

[0053] It should be understood that the provision of the handle 300 and the protective cover 200 facilitates the operator's grip, thereby reducing the difficulty of the operation and improving the efficiency and success rate of the operation.

[0054] Please combine Figure 3-Figure 6In this embodiment, optionally, the number of the wire-holding grooves 120 on the outer peripheral surface of the puncture needle 100 can be one or two. When the number of the wire-holding grooves 120 is one, the wire-holding groove 120 has a relative notch and a groove bottom wall, the width of the notch is less than the width of the groove bottom wall, and the width direction of the notch and the width direction of the groove bottom wall are both consistent with the extension direction of the puncture needle 100. By setting the width of the notch to be less than the width of the groove bottom wall, when the suture 400 enters the wire-holding groove 120 from the notch, the suture 400 can move to the position of the groove bottom wall and contact the groove side wall of the wire-holding groove 120 during the movement of the puncture needle 100, and the suture 400 and the notch are mutually staggered. The suture 400 is not easy to get out of the wire-holding groove 120 from the notch, and the positioning of the suture 400 and the puncture needle 100 is more secure, and it is not easy to get off the line during the operation, which reduces the difficulty of the operation and improves the efficiency of the operation.

[0055] Furthermore, an arc-shaped outer protrusion 130 is provided on the outer peripheral surface of the puncture needle 100, and the arc-shaped outer protrusion 130 is arranged opposite to the wire clamping groove 120, and the puncture needle 100 forms a thickened structure at the arc-shaped outer protrusion 130. At the position of the arc-shaped outer protrusion 130, the thickness of the puncture needle 100 is thicker, that is, after the wire clamping groove 120 is opened, the thickness of the puncture needle 100 at the position of the wire clamping groove 120 is thinned. During the use of the puncture needle 100, it will be subjected to the external force applied by the suture 400 and the meniscus body 001. The position where the wire clamping groove 120 of the puncture needle 100 is located is a weak link. By thickening this position, the structural strength of the puncture needle 100 at the position of the wire clamping groove 120 can be improved, thereby improving the stability of the puncture needle 100, making puncture safer, and prolonging the service life of the puncture needle 100.

[0056] Furthermore, two receiving grooves 140 are provided on the outer peripheral surface of the puncture needle 100, and the two receiving grooves 140 are respectively connected to the two ends of the wire clamping groove 120, and the receiving grooves 140 extend in the length direction of the puncture needle 100. When the puncture needle 100 drives the suture 400 to pass through the meniscus body 001, the suture 400 is located in the receiving groove 140, and the suture 400 does not protrude from the outer peripheral surface of the puncture needle 100 body, and will not increase the wound area of ​​the puncture position of the meniscus body 001. The suture 400 is also not easy to directly contact and rub with the meniscus body 001, thereby improving the quality of the operation.

[0057] When there are two wire-binding grooves 120, the two wire-binding grooves 120 can be located on the same side of the puncture needle 100, or on opposite sides of the puncture needle 100. For example, when the wire-binding grooves 120 are located on the same side of the puncture needle 100, the two wire-binding grooves 120 are adjacently arranged in the length direction of the puncture needle 100, and each wire-binding groove 120 is provided with an oblique groove wall 150, and the oblique groove walls 150 of the two wire-binding grooves 120 are inclined in opposite directions, and the oblique groove wall 150 of the wire-binding grooves 120 close to the tip 110 of the two wire-binding grooves 120 is the front end groove wall; one side of the front end groove wall close to the tip 110 is located on the outer peripheral surface of the puncture needle 100, and the other side is oblique to the middle of the puncture needle 100.

[0058] Please combine Figure 4 When the puncture needle 100 is used to drive the suture 400 into the meniscus body 001, the suture 400 is positioned in the wire clamping groove 120 close to the tip 110, and the suture 400 is not easy to leave the wire clamping groove 120 during the puncture process. After the suture 400 is inserted into the meniscus body 001, the suture 400 is easy to leave the wire clamping groove 120 from the oblique groove wall 150; similarly, when the puncture needle 100 is used to pass the part of the suture 400 that has been inserted out of the meniscus body 001, the suture 400 is positioned in the wire clamping groove 120 away from the tip 110, and the suture 400 is not easy to leave the wire clamping groove 120 during the puncture process. After the suture 400 is passed out of the meniscus body 001, the suture 400 is easy to leave the wire clamping groove 120 from the oblique groove wall 150.

[0059] Please combine Figure 6 Obviously, in other embodiments, the two wire clamping grooves 120 can also be distributed on both sides of the puncture needle 100, or the shape of the wire clamping groove 120 can also be other structures, which are not exhaustively listed in this embodiment, and can clamp the suture 400 and drive the suture 400 to move.

[0060] In this embodiment, optionally, an anti-skid protrusion 210 can be provided on the outer peripheral surface of the protective cover 200, and the anti-skid protrusion 210 can control the position of the suture 400 on the protective cover 200 to prevent the suture 400 from being knotted or detached from the puncture needle 100 during the puncture process.

[0061] At the same time, the multiple preformed knotting rings 401 on the suture 400 can be positioned on the protective cover 200 and located on the side of the anti-slip protrusion 210 away from the tip 110 of the puncture needle 100. In this way, during the puncture process, the multiple preformed knotting rings 401 will not automatically untie, which is conducive to subsequent knotting.

[0062] In addition, in other embodiments, the suture 400 can be firstly wound around the wire pull ring 500 to form a plurality of prefabricated knotting rings 401, and the wire pull ring 500 is positioned on the protective sleeve 200. After the operation is completed, the first end 410 or the second end 420 of the suture 400 is passed through the plurality of prefabricated knotting rings 401, and knotting can be achieved by pulling the wire pull ring 500. Regardless of whether the suture 400 is wound around the protective sleeve 200 or the wire pull ring 500, the winding method of the plurality of prefabricated knotting rings 401 of the suture 400 can be the same. For example, please combine Figure 7 , the following is explained by taking the example of a suture 400 being wound around a wire pull ring 500 to form a plurality of prefabricated knotted rings 401 .

[0063] Specifically, the number of prefabricated knotting loops 401 is three. Taking the first end 410 as a reference, the suture 400 is on the inner side of the wire pull ring 500, and the second end 420 first comes out from the inner side of the protective cover 200, bypasses the outer side of the protective cover 200, and then enters the inner side again. At this time, the suture 400 forms a first intersection 430, and the first end 410 is located on the right side of the intersection position. Then, the suture 400 continues to be wound from the outside to the inside, and the suture 400 forms a second intersection 440, and the line segment wound from the inside is located on the left side of the line segment wound from the outside; the suture 400 wound from the inside continues to be wound, and this time the suture 400 first enters the inner side of the wire pull ring 500, and then winds from the inside to the outside to form a third intersection 450. At the third intersection 450, the line segment entering from the inside is located on the right side of the line segment wound from the outside. In this way, three prefabricated knotting loops 401 are formed. When tying a knot, the first end 410 can be inserted from the leftmost prefabricated knotting ring 401, and then pass through three prefabricated knotting rings 401 in sequence, and then pass out from the rightmost prefabricated knotting ring 401. Alternatively, the second end 420 can be inserted from the rightmost prefabricated knotting ring 401, and then pass through three prefabricated knotting rings 401 in sequence, and then pass out from the leftmost prefabricated knotting ring 401. After the insertion is completed, the first end 410 and the second end 420 are pulled, and the pull ring 500 is withdrawn from the three prefabricated knotting rings 401 to complete the knotting.

[0064] It should be understood that when the suture 400 is directly wrapped around the protective sleeve 200 to form a plurality of prefabricated knotting rings 401, after the operation is completed, the puncture rod can be directly driven to retract the protective sleeve 200 through the handle 300, and the first end 410 of the suture 400 can be driven to move through the puncture needle 100. When the suture 400 is retracted into the protective sleeve 200, the prefabricated knotting ring 401 can be operated to slide from the protective sleeve 200 toward the front end of the protective sleeve 200. After sliding off the protective sleeve 200, the puncture needle 100 can continue to drive the suture 400 to move in the plurality of prefabricated knotting rings 401. When the wire clamping groove 120 leaves the plurality of prefabricated sutures 400, the suture 400 is removed from the wire clamping groove 120. At this time, the step of the first end 410 passing through the plurality of prefabricated knotting rings 401 in sequence is completed. The knotting can be completed by pulling the first end 410 and the second end 420, which is easy to operate.

[0065] It should be understood that in other embodiments, the number of preformed knotted loops 401 is not limited to three.

[0066] It should be noted that Figure 7 The section line formed by bending the position of the first end 410 indicates the insertion method and the position of the first end 410 in the three prefabricated knotted rings 401 after the operation.

[0067] Optionally, the handle 300 and the protective cover 200 can be locked by means of structural parts such as locking screws. For example, the locking screw can be threaded onto the protective cover 200, and part of the handle 300 can be inserted into the protective cover 200. The end of the locking screw can abut against the outer peripheral surface of the handle 300, thereby locking the handle 300 and the protective cover 200. When it is necessary to unlock, the locking screw can be loosened, which is easy to operate.

[0068] The meniscus suturing system provided in this embodiment has a simple structure, is easy to operate, has a short operation time, high operation efficiency, and a high operation success rate.

[0069] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A meniscus suturing system, characterized in that: include: A puncture needle (100) having a tip (110) for puncturing a meniscus body (001); a wire retaining groove (120) arranged at intervals from the tip (110) is provided on the outer peripheral surface of the puncture needle (100); the wire retaining groove (120) is used to position a suture (400) so that the puncture needle (100) can drive the suture (400) to penetrate into the meniscus body (001) or penetrate out of the meniscus body.

2. The meniscus suturing system according to claim 1, characterized in that: The wire clamping slot (120) has a relative slot opening and a slot bottom wall, the width of the slot opening is smaller than the width of the slot bottom wall, and the width direction of the slot opening and the width direction of the slot bottom wall are both consistent with the extension direction of the puncture needle (100).

3. The meniscus suturing system according to claim 1, characterized in that: An arc-shaped outer protrusion (130) is arranged on the outer peripheral surface of the puncture needle (100), and the arc-shaped outer protrusion (130) is arranged opposite to the wire clamping groove (120). The puncture needle (100) forms a thickened structure at the arc-shaped outer protrusion (130).

4. The meniscus suturing system according to claim 1, characterized in that: The number of the wire clamping slots (120) is two, and the two wire clamping slots (120) are arranged at intervals in the extension direction of the puncture needle (100).

5. The meniscus suturing system according to claim 4, characterized in that: The two wire clamping grooves (120) are located on the same side of the puncture needle (100).

6. The meniscus suturing system according to claim 5, characterized in that: Each of the wire-holding grooves (120) is provided with an oblique groove wall (150); the oblique groove walls (150) of the two wire-holding grooves (120) are inclined in opposite directions; the oblique groove wall (150) of the wire-holding grooves (120) close to the tip (110) of the two wire-holding grooves (120) is a front end groove wall; one side of the front end groove wall close to the tip (110) is located on the outer peripheral surface of the puncture needle (100), and the other side is oblique to the middle of the puncture needle (100).

7. The meniscus suturing system according to claim 4, characterized in that: The two wire clamping grooves (120) are located on opposite sides of the puncture needle (100).

8. The meniscus suturing system according to claim 1, characterized in that: The meniscus suturing system further comprises a protective cover (200) and a handle (300), wherein the puncture needle (100) is slidably inserted into the protective cover (200), and the tip (110) of the puncture needle (100) has a first position extending out of the protective cover (200) and a second position retracted into the protective cover (200) which can be switched between each other; the handle (300) is unlockably connected to the protective cover (200), and the puncture needle (100) is mounted on the handle (300); when the handle (300) is in an unlocked state, the handle (300) can drive the puncture needle (100) to slide relative to the protective cover (200) to adjust the position of the tip (110) relative to the protective cover (200).

9. The meniscus suturing system according to claim 8, characterized in that: The meniscus suture system also includes a suture (400), which cooperates with the puncture needle (100), and a portion of the suture (400) is rolled to form a plurality of preformed knotted loops (401). After the suture (400) is positioned on the meniscus body (001), the first end (410) and the second end (420) of the suture (400) are exposed outside the meniscus body (001), and the first end (410) of the suture (400) can pass through the plurality of preformed knotted loops (401) in sequence in a direction from the first end (410) to the second end (420) to form a fixed knot on the outside of the meniscus body (001).

10. The meniscus suturing system according to claim 9, characterized in that: The plurality of prefabricated knotted rings (401) are sleeved on the outside of the protective sleeve (200), or the plurality of prefabricated knotted rings (401) are sleeved on the outside of the wire pull ring (500), and the wire pull ring (500) is sleeved on the outside of the protective sleeve (200).

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