Automatic suture threading device

Abstract

The present invention relates to an automatic suture threading device, comprising a handheld portion, an operating channel formed therein, a handle hingedly connected thereto, the operating end of the handle being located outside the handheld portion, and the connecting end of the handle being located within the operating channel; a traction portion having one end located within the operating channel and connected to the connecting end of the handle; the other end of the traction portion extending outward, extending beyond the operating channel and maintaining a certain length; the other end of the traction portion being connected to a threader, the threader having a needle groove for a suture needle with a thread rotating along its own arc, the other end of the traction portion extending into the threader; a needle holder being connected to the front end of the threader, the outer wall of the needle holder being formed with an annular needle groove connected to the needle groove, the end of the annular needle groove being a suture outlet, a threading notch being formed between the suture outlet and the needle groove. The threader is small in size and can pass through a smaller incision, reducing obstruction to the surgical field of view; the traction portion can deliver the threader to a deeper position for operation; the operation is simple and fast, saving operation time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a device for puncturing and threading tissue using a suture needle with a thread, and more particularly to an automatic suture threading device. Background Art

[0002] In modern medicine, tissue suturing is widely used in the treatment of various diseases or in the treatment of trauma. Suturing technology is more widely used in internal and external surgery. The main instrument used in suturing technology is the suture needle with thread. In traditional suturing technology, the surgeon uses his hands or needle-holding forceps to hold the suture needle to manually puncture and thread the tissue, and then tie or fix it after puncture and threading. However, due to the small size of the wound, the target tissue is sometimes too deep for the human hand to pass through the wound, and needle-holding forceps are not flexible enough, which makes the suturing and threading operation very difficult and requires a lot of operation time. The surgeon's hands or the instruments he holds block the surgical field of view, making it inconvenient for the surgeon to observe, resulting in possible errors in manual operation, and inconsistent spacing between the puncture leads of the two needles.

[0003] Therefore, how to provide an automatic suture threading device is a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent.

[0005] To this end, an object of the present invention is to provide an automatic suture threading device, comprising:

[0006] A handheld portion, wherein an operating channel is formed inside the handheld portion, a handle is hingedly connected near the operating channel, an operating end of the handle is located outside the handheld portion, and an end of the handle away from the operating end is a connecting end, which is located in the operating channel and is connected to the inner wall of the handheld portion by a reset member;

[0007] a traction portion, one end of which is located in the operating channel and connected to the connecting end of the handle; and the other end of which extends outward, extends out of the operating channel and maintains a certain length;

[0008] A needle threader, the other end of the traction part is connected to the needle threader, the needle threader has a needle groove for the threaded suture needle to rotate along its own arc, the other end of the traction part extends into the needle threader, and is used to push the threaded suture needle to move and catch the threaded suture needle after it moves a certain displacement;

[0009] The needle holder is connected to the front end of the threader, and the outer wall of the needle holder is formed with an annular needle groove connected to the needle groove. The end of the annular needle groove is a suture outlet, and a threading notch is formed between the suture outlet and the needle groove.

[0010] Through the above technical solutions, it can be seen that compared with the prior art, the present invention provides an automatic suture threading device, which can be held in one hand as a whole. By pulling the handle, the traction part can be driven to drive the threader. The other end of the traction part extends into the threader to push the suture needle with thread to move and catch the needle of the suture needle with thread after moving a certain displacement, and push the arc-shaped needle inside the needle holder along its own curved arc to the threading notch, thereby achieving tissue puncture; while completing the puncture, the inside of the threader will catch the needle; release the handle to reset the mechanism of the entire device; the needle will continue to rotate with the mechanism, and after passing through the tissue, the needle will completely enter the threader, and the suture connected to the tail end of the needle will pass through the tissue. After the operation is completed, the entire device will be pulled away from the tissue, and a certain length of suture will pass through the tissue. The threader is small in size and can pass through a smaller incision to reduce obstruction to the surgical field of view; the traction part has a certain length, and the threader can be sent to a deeper position for operation; the operation is simple and fast, which can save a lot of operating time.

[0011] Furthermore, the handheld portion is pistol-shaped, the handle is located at the lower portion, and an operating channel is formed inside the handle.

[0012] Furthermore, a tension spring is fixed inside the hand-held part, and the tension spring is connected to a hook on the connecting end close to the handle for resetting; a connecting opening is formed at the connecting end of the handle, and one end of the traction part has a snap-fit ​​disc that cooperates and is fixed with the connecting opening.

[0013] Furthermore, a wire tube is provided on the outer wall of the traction part through a wire tube clamp, and the wire tube is a soft transparent hose; an opening is provided on the tube wall that runs through the entire tube body, and the opening is used for the suture thread of the threaded suture needle to pass in or out.

[0014] Furthermore, the traction part includes a sleeve and a push rod, one end of the sleeve is fixed to the end of the hand-held part, and the other end is connected to the threader, which has a movable push rod inside. One end of the push rod is connected to the connecting end of the handle, and the other end extends into the threader and is connected to the driving part for driving the threaded suture needle.

[0015] Furthermore, the threader includes a shell, the top of the shell has a channel for the push rod to enter, the lower part is an open opening, the opening is connected to the needle holder, the needle groove is arranged on the inner wall of the shell, the annular needle groove and the needle groove constitute an arc-shaped groove structure with the threading notch; the driving part is installed in the shell.

[0016] Furthermore, the driving part includes: a needle receiving mechanism, a needle pushing mechanism and a connecting rod mechanism. One end of the connecting rod mechanism is a push rod connecting pin, which is fixed to the push rod. The other end is hinged to the needle receiving mechanism and the needle pushing mechanism through two connecting rods to form a four-link mechanism. The needle receiving mechanism and the needle pushing mechanism are located on both sides of the threading notch and are correspondingly arranged at both ends of the needle groove.

[0017] Furthermore, the needle receiving mechanism includes a rotating part and a spring sheet; the spring sheet is a V-shaped or U-shaped elastic sheet; the lower part of the rotating part has a rotation axis hole for its own rotation, the rotation axis hole is connected to the needle pushing mechanism, and the middle part has a connecting hole connected to the connecting rod in the connecting rod mechanism; its upper part forms a clamping groove for clamping the spring sheet.

[0018] Furthermore, the needle pushing mechanism includes a needle pushing rod, which is arc-shaped, has a hole at one end for accommodating a suture needle with thread, and the other end is connected to a connecting arm, and the connecting arm has a connecting hole connected to the second connecting rod in the connecting rod mechanism, and an axial hole corresponding to the rotating shaft hole.

[0019] Furthermore, the threaded suture needle includes an arc-shaped needle head and a suture thread. The two arc-shaped needle heads are arranged in parallel, and each arc-shaped needle head corresponds to one needle-pushing mechanism. The end close to the needle tip has a notch, and the shapes of the two notches are adapted to the spring sheet and are clamped; the two ends of the suture thread are respectively arranged at the tail of the two arc-shaped needle heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 The accompanying drawing is a schematic structural diagram of an automatic suture threading device provided by the present invention;

[0022] Figure 2 The accompanying drawing shows a partial internal schematic diagram of an automatic suture threading device;

[0023] Figure 3 The accompanying drawings show an exploded view of the needle threader (showing the internal structure);

[0024] Figure 4 The accompanying drawing shows a schematic structural diagram of the needle receiving mechanism;

[0025] Figure 5The accompanying drawings show a schematic diagram of the arc-shaped needle head, the needle receiving mechanism and the needle pushing mechanism;

[0026] Figure 6 The attached picture is Figure 5 A magnified schematic diagram of part A;

[0027] Figure 7 The accompanying drawing shows a schematic structural diagram of the pin pushing mechanism;

[0028] Figure 8 The accompanying drawing shows a schematic structural diagram of a connecting rod mechanism;

[0029] Figure 9 The accompanying drawing shows a schematic structural diagram of a curved needle and a needle holder;

[0030] Figure 10 The accompanying drawings show a cross-sectional view of the curved needle and the needle holder;

[0031] Figure 11 The accompanying drawing shows a schematic diagram of the connection between the curved needle and the suture;

[0032] Figure 12 The accompanying drawing is a schematic diagram of the step-by-step operation process of automatic suture threading. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] Because existing instruments are limited by the small size of the wound, the target tissue is sometimes too deep for human hands to pass through the wound, and needle-holding forceps are not flexible enough, which brings great difficulty to the suturing and threading operation, and requires a lot of operation time. The operator's hands or the instruments held by the operator block the surgical field of view, making it inconvenient for the operator to observe and causing errors in manual operation. Therefore, the present invention provides an automatic suturing and threading device, which can provide the operator with simpler operation, save more time, reduce the difficulty of operation, and can be flexibly applied to various occasions, especially during small or minimally invasive surgery, it can penetrate into deeper positions for operation, and the puncture and threading performed by the present invention can also ensure the consistency of the position and spacing of the double needle puncture and threading, providing a reliable guarantee for the success of the operation.

[0038] Specifically, see the attached Figure 1-2The embodiment of the present invention discloses an automatic suture threading device, comprising: a hand-held portion 1, the hand-held portion 1 being pistol-shaped, convenient for one-handed holding, and hollow inside to form an operating channel, a handle 2 being hinged near the operating channel, the operating end of the handle 2 being located outside the hand-held portion 1, the end of the handle 2 away from the operating end being a connecting end, the connecting end of which being located in the operating channel, and a reset member being connected to the inner wall of the hand-held portion 1, so that the handle can be elastically pushed toward the direction of the gun head; a traction portion, one end of the traction portion being located in the operating channel and connected to the connecting end of the handle 2; the other end of the traction portion extending outward, extending out of the operating channel and maintaining a certain length. , which is conducive to entering a deeper target position; the threader 5, the other end of the traction part is connected to the threader 5, and the threader 5 has a needle groove 54 for the suture needle 7 with a thread to rotate along its own arc. The other end of the traction part extends into the threader 5, which is used to push the suture needle 7 with a thread to move and catch the suture needle 7 with a thread after moving a certain displacement; the needle holder 6, the front end of the threader 5 is connected to the needle holder 6, and the outer wall of the needle holder 6 is formed with an annular needle groove 61 connected to the needle groove 54, and the end of the annular needle groove 61 is a suture outlet 62, and a threading notch Q is formed between the suture outlet 62 and the needle groove 54. Among them, the needle holder is an independent component, and its outer shell is designed with a structure combined with the threader shell so that it can be assembled on the threader and can be removed after use. The threader and the needle holder can be connected by a plastic buckle or an interference fit plug-in structure. It can be disassembled and replaced by pulling hard.

[0039] In the embodiments of the present invention, see the attached Figure 2 A tension spring 11 is fixed inside the hand-held part 1, and the tension spring 11 is fixed to the inner wall of the hand-held part 1 through a tension spring fixing structure 12. The tension spring 11 is connected to a hook 21 on the connecting end close to the handle 2 for resetting; the connecting end of the handle 2 is arc-shaped, and a connecting opening 22 is opened on the arc-shaped outer wall. One end of the traction part has a snap-fit ​​disc 41 that is fixed with the connecting opening 22. The snap-fit ​​disc can be inserted into the opening and can be stably fixed. When the handle is pulled, the connecting end of the handle 2 pushes the traction part forward.

[0040] See attached Figure 1 Advantageously, in one embodiment of the present invention, a wire tube 8 is clamped onto the outer wall of the traction portion by a wire tube clamp 9. The wire tube 8 is a soft, transparent hose. An opening is provided on the wall of the hose that runs through the entire hose body. The opening allows the suture 72 of the suture needle 7 to pass through or out, providing a passage for the suture and facilitating its insertion and removal. The wire tube clamp 9 can slide freely on the traction portion, and one end has a slot that can clamp the wire tube 8, ensuring that the wire tube 8 is arranged along the length of the traction portion.

[0041] See attached Figure 1 and 3 In one embodiment of the present invention, the traction part includes a sleeve 3 and a push rod 4, one end of the sleeve 3 is fixed to the end of the hand-held part 1, and the other end is connected to the threader 5, which has a movable push rod 4 inside. One end of the push rod 4 is connected to the connecting end of the handle 2, and the other end extends into the threader 5 and is connected to the driving part for driving the suture needle 7 with thread.

[0042] See attached Figure 3-10 The threader 5 includes a shell, the top of the shell has a channel for the push rod 4 to enter, the lower part is an open opening, the opening is connected to the needle holder 6, the needle groove 54 is arranged on the inner wall of the shell, the annular needle groove 61 and the needle groove 54 constitute an arc-shaped groove structure with the threading notch Q; the driving part is installed in the shell.

[0043] See attached Figure 3 、 5 , 6 and 8, specifically, the driving part includes: a needle receiving mechanism 51, a needle pushing mechanism 52 and a connecting rod mechanism 53, one end of the connecting rod mechanism 53 is a push rod connecting nail 533, the push rod connecting nail 533 is fixed to the push rod 4, and the other end is hinged to the needle receiving mechanism 51 and the needle pushing mechanism 52 through two connecting rods to form a four-link mechanism, the needle receiving mechanism 51 and the needle pushing mechanism 52 are located on both sides of the threading gap Q, and are correspondingly arranged at both ends of the needle groove 54, that is, the needle pushing mechanism 52 is located at the starting end of the thread groove of the needle groove 54, and the needle receiving mechanism 51 is located at the end of the thread groove of the needle groove 54.

[0044] See attached Figure 4 and 8 The needle receiving mechanism 51 includes a rotating part 512 and a spring piece 511; the spring piece 511 is a V-shaped or U-shaped elastic sheet; the lower part of the rotating part 512 is provided with a rotation axis hole 514 for its own rotation, the rotation axis hole 514 is connected to the needle pushing mechanism 52, and the middle part is connected to the connecting rod 531 in the connecting rod mechanism 53. A clamping groove for clamping the spring piece 511 is formed on its upper part, and the clamping groove is clamped with the connecting end of the spring piece. The free end of the spring piece can be used to abut the end of the suture needle 7 with thread to achieve the purpose of needle connection.

[0045] See attached Figure 7 and 8 The needle pushing mechanism 52 includes a needle pushing rod 521, which is arc-shaped and has a hole at one end for accommodating the suture needle 7 with thread, which is used to dock the needle tail of the suture needle 7 with thread, and the other end is connected to a connecting arm, which has a connecting hole 522 connected to the connecting rod 2 532 in the connecting rod mechanism 53, and an axis hole 523 corresponding to the rotating shaft hole 514.

[0046] Thus, by pulling the handle 2, the push rod 4 pushes the push rod connecting pin 533 forward, and the end of the push rod connecting pin 533 connects the connecting rod 1 531 and the connecting rod 2 532, and the thrust is decomposed into the relative rotation of the connecting rod 1 531 and the connecting rod 2 532 toward the outside. Figure 8 In the figure, the direction of the arrow indicates the decomposition direction of the thrust, and then the connecting rod 1 531 drives the rotating part 512 close to the end of the needle groove to put the spring piece in place, and the connecting rod 2 532 drives the needle push rod 521 to push the suture needle 7 with thread to the beginning of the needle groove to prepare for puncturing the tissue.

[0047] See attached Figure 9-11 The threaded suture needle 7 includes an arc-shaped needle head 71 and a suture thread 72. The arc-shaped needle heads 71 ​​are two arranged in parallel. Each arc-shaped needle head 71 corresponds to one needle-pushing mechanism 52. The end close to the needle tip has a notch 711. The shapes of the two notches 711 are adapted to the spring piece 511 and are clamped; the two ends of the suture thread 72 are respectively arranged at the tail of the two arc-shaped needle heads 71.

[0048] Because the spacing between the two suture needles within the needle holder is fixed and determined by the holder's housing dimensions, holders of varying sizes are available, such as 3mm, 5mm, and 7mm. The threading position is determined by the depth of the needle holder's opening, with options such as 2mm, 3mm, and 4mm available. Thus, the threading method of the present invention ensures consistent spacing between the two needles during puncture and threading, providing a reliable guarantee for surgical success.

[0049] See attached Figure 12 , the specific use of the present invention is:

[0050] Hold the handle 1 with one hand, assemble the needle holder 6 to the threader 5, and fix the wire tube 8 to the wire tube clamp 9 for use; refer to the attached Figure 1 shown.

[0051] See attached Figure 12 Instructions and steps;

[0052] Align the tissue to be sutured and place it in the threading notch Q, as shown in the attached Figure 12 In step 1; during the process of slowly depressing the handle 2, the push rod 4 in the sleeve 3 can be driven forward; the push rod 4 pushes the connecting rod mechanism 53 inside the threader 5 forward; the forward connecting rod mechanism 53 can synchronously drive the needle pushing mechanism 52 and the needle receiving mechanism 51 to rotate through the connecting rod 1 and the connecting rod 2; wherein the needle push rod 521 on the needle pushing mechanism 52 pushes the arc-shaped needle 71 inside the needle holder 6 out of the shell along the curvature of its own curvature to the threading notch Q, as shown in the attached Figure 12Step 2: Continue to pull the handle 2 to the bottom, the spring in the needle receiving mechanism 51 inside the threader 5 will catch the curved needle 71, as shown in the attached Figure 12 Step 3; release the handle 2, the handle will be pushed in the reverse direction elastically, so that the mechanism of the whole device is reset; the arc needle 71 engaged by the needle receiving mechanism 51 will rotate along with the needle receiving mechanism 51, and the arc needle 71 will pass through the tissue and enter the shell of the threader 5 as a whole, and the end of the needle groove; the suture thread 72 connected to the tail end of the arc needle 71 will pass through the tissue. After the operation is completed, the whole device will be pulled away from the tissue, as shown in the attached Figure 12 In step 4, the suture will slide out of the tube 8 and pass through the tissue.

[0053] Pull the handle 2 to the bottom again, and the needle receiving mechanism 51 inside the threader 5 will release the curved needle 71. At this time, the curved needle 71 can be pulled out of the threader 5 and pulled back into the needle holder 6 by pulling the suture thread 72.

[0054] The needle holder 6 can now be removed from the suture threader 5 for standby use, or the next suture threading operation can be performed on the tissue, or the curved needle 71 can be taken out of the needle holder 6 for standby use.

[0055] The threader of the present invention is small in size and can pass through a smaller incision, reducing obstruction of the surgical field of view; the cannula has a certain length, so the threader can be sent to a deeper position for operation; the operation is simple and fast, which can save a lot of operation time; by replacing needle holders and suture needles with thread of different specifications, it can be used in more occasions, and the application is free and convenient; the suture needle with thread is hidden in the needle holder, which is safer when not in operation and prevents accidental injury to the surgeon; the double needle puncture and threading spacing of the suture needle with thread is fixed and has strong consistency.

[0056] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0057] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic suture threading device, characterized in that: include: A handheld portion (1), an operating channel is formed inside the handheld portion (1), a handle (2) is hingedly connected near the operating channel, an operating end of the handle (2) is located outside the handheld portion (1), an end of the handle (2) away from the operating end is a connecting end, the connecting end is located in the operating channel, and a reset member is connected to the inner wall of the handheld portion (1); a traction portion, one end of which is located in the operating channel and connected to the connection end of the handle (2); The other end thereof extends outward, extends out of the operating channel and maintains a certain length; A threader (5), the other end of the traction part is connected to the threader (5), the threader (5) has a needle groove (54) for the threaded suture needle (7) to rotate along its own arc, and the other end of the traction part extends into the threader (5) to push the threaded suture needle (7) to move and catch the threaded suture needle (7) after it moves a certain displacement; A needle holder (6), the front end of the threader (5) is connected to the needle holder (6), the outer wall of the needle holder (6) is formed with an annular needle groove (61) connected to the needle groove (54), the end of the annular needle groove (61) is a suture outlet (62), and a threading notch (Q) is formed between the suture outlet (62) and the needle groove (54); The handheld portion (1) is pistol-shaped, and the handle (2) is located at the lower portion, with an operating channel formed inside the handle; A tension spring (11) is fixed inside the hand-held portion (1), and the tension spring (11) is connected to a hook (21) on the connecting end close to the handle (2) for resetting; a connecting opening (22) is formed at the connecting end of the handle (2), and one end of the traction portion has a snap-fit ​​disc (41) that is fixedly matched with the connecting opening (22); The traction part comprises a sleeve (3) and a push rod (4), one end of the sleeve (3) is fixed to the end of the handheld part (1), and the other end is connected to the threader (5), and a movable push rod (4) is provided inside the sleeve (3), one end of the push rod (4) is connected to the connecting end of the handle (2), and the other end extends into the threader (5) and is connected to the driving part for driving the threaded suture needle (7).

2. An automatic suture threading device according to claim 1, characterized in that: A wire tube (8) is clamped on the outer wall of the traction portion via a wire tube clamp (9), and the wire tube (8) is a soft transparent hose; an opening is provided on the tube wall that passes through the entire tube body, and the opening is used for the suture thread (72) of the thread-carrying suture needle (7) to pass in or out.

3. An automatic suture threading device according to claim 1, characterized in that: The threader (5) includes a shell, the top of the shell has a passage for the push rod (4) to enter, the lower part of the shell is open, and the opening is connected to the needle holder (6), the needle groove (54) is arranged on the inner wall of the shell, and the annular needle groove (61) and the needle groove (54) constitute an arc groove structure with the threading notch (Q); the driving part is installed in the shell.

4. An automatic suture threading device according to claim 3, characterized in that: The driving part comprises: a needle receiving mechanism (51), a needle pushing mechanism (52) and a connecting rod mechanism (53); one end of the connecting rod mechanism (53) is a push rod connecting pin (533), which is fixed to the push rod (4); the other end is hinged to the needle receiving mechanism (51) and the needle pushing mechanism (52) through two connecting rods to form a four-link mechanism; the needle receiving mechanism (51) and the needle pushing mechanism (52) are located on both sides of the threading notch (Q) and are correspondingly arranged at both ends of the needle groove (54).

5. An automatic suture threading device according to claim 4, characterized in that: The needle receiving mechanism (51) comprises a rotating portion (512) and a spring piece (511); the spring piece (511) is a V-shaped or U-shaped elastic sheet; the rotating portion (512) has a rotating shaft hole (514) at its lower portion for its own rotation, the rotating shaft hole (514) being connected to the needle pushing mechanism (52), and a connecting hole (513) at its middle portion being connected to the connecting rod 1 (531) in the connecting rod mechanism (53); and a clamping groove for clamping the spring piece (511) is formed at its upper portion.

6. An automatic suture threading device according to claim 5, characterized in that: The needle pushing mechanism (52) comprises a needle pushing rod (521), which is arc-shaped, and has a hole at one end thereof for accommodating a suture needle (7) with a thread, and the other end thereof is connected to a connecting arm, wherein the connecting arm has a connecting hole (522) connected to the second connecting rod (532) in the connecting rod mechanism (53), and an axis hole (523) correspondingly connected to the rotating shaft hole (514).

7. An automatic suture threading device according to claim 5, characterized in that: The threaded suture needle (7) comprises an arc-shaped needle head (71) and a suture thread (72). The arc-shaped needle heads (71) are two arranged in parallel, and each arc-shaped needle head (71) corresponds to one needle-pushing mechanism (52). One end close to the needle tip is provided with a notch (711). The shapes of the two notches (711) are adapted to the spring sheet (511) and are engaged therewith. The two ends of the suture thread (72) are respectively arranged at the tails of the two arc-shaped needle heads (71).

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