Double-end needle and thread sewing device

Abstract

According to the double-end needle and thread suturing device, suturing needles can be alternately locked on two clamping bases, so that the suturing needles drive suturing threads to penetrate through human mucous membrane tissues, and the suturing needles penetrate through the human mucous membrane tissues for multiple times by repeating multiple operations, so that the purpose of suturing the human mucous membrane tissues is achieved. When the suture needle is used, only the two ends of the suture needle need to be fixed, a complex fixing structure and a complex driving structure are not needed, and therefore the complexity of a product is reduced, the error-tolerant rate of the suture needle in the suture process is increased, the operation difficulty of the product is reduced, and the product is easier to operate.

Description

Technical Field

[0001] This application relates to the technical field of medical devices for minimally invasive endoscopic surgery, and particularly relates to a double-headed needle and thread suture device. Background Art

[0002] The suture of the lower gastrointestinal mucosa tissue defect under a flexible endoscope is an important endoscopic technique. Among them, the suture with a suture thread is the most classical technique, which belongs to the standardized suture of mucosa-to-mucosa kiss in the true sense, and is more conducive to the repair of defects. However, it is difficult to efficiently achieve the suture with a suture thread under a flexible endoscope, and there is no efficient and reliable suture instrument that matches this technique.

[0003] In the prior art, there is a suture instrument with a "C-shaped suture needle", which is a relatively good implementation. However, the structure of this kind of instrument is relatively complex, and the precision requirements for part processing and assembly are quite high. In addition, the thickness and quantity of the mucosa tissue that can be sutured by this kind of instrument are affected by the size of the "C-shaped" suture opening. Generally, the diameter of the suture opening is about 1 cm, and the size is very limited, which makes it difficult to suture too thick and too much mucosa tissue, thus restricting the development of endoscopic surgery. Utility Model Content

[0004] An embodiment of this application provides a double-headed needle and thread suture device, and the double-headed needle and thread suture device includes: a main body, a through hole penetrating through the main body is provided on the main body, and the through hole is configured to cooperate with an endoscope; two clamping seats, the two clamping seats are installed on the main body and are located on both sides of the through hole, and at least one of the clamping seats can move relative to the main body, and an installation space is provided on the clamping seat; two locking components, the two locking components are respectively arranged in the installation spaces of the two clamping seats, and the locking components have a locked state and an unlocked state; a suture component, the suture component includes a suture needle and a suture thread, the suture needle includes a needle body, the needle body has two opposite ends, and at least one end of the needle body is provided with a puncture part, and the two ends of the needle body can be respectively inserted into the installation spaces of the two clamping seats and locked with the locking components; a locking control member, the locking control member is connected to the locking components, and the locking control member is configured to control the locking components to switch between the locked state and the unlocked state; and a clamping control device, the clamping control device is connected to at least one of the clamping seats, and the clamping control device is configured to drive the clamping seat to move relative to the main body.

[0005] In some embodiments, steps are respectively provided at both ends of the needle body; a limiting channel is provided on the clamping seat, and the end of the suture needle passes through the limiting channel and is inserted into the installation space; the locking assembly includes: a locking member, which is arranged in the installation space and can slide relative to the clamping seat, and a clamping groove matching with the step is arranged on the locking member. In the locked state, the clamping groove can be clamped with the step; and a first reset member, which is arranged between the locking member and the clamping seat.

[0006] In some embodiments, the clamping control device includes: a transmission assembly, which is arranged on the main body and can move relative to the main body, and the transmission assembly is connected with the clamping seat; and a control member, which is connected with the transmission assembly.

[0007] In some embodiments, the transmission assembly includes a transmission connecting rod, one end of the transmission connecting rod is connected with the control member, and the other end of the transmission connecting rod is connected with the clamping seat.

[0008] In some embodiments, the transmission assembly includes two transmission connecting rods, one ends of the two transmission connecting rods intersect and are connected with the control member, and the other ends of the two transmission connecting rods are respectively connected with the two clamping seats.

[0009] In some embodiments, the transmission connecting rod includes: a first connecting rod, one end of the first connecting rod is connected with the control member; and a second connecting rod, one end of the second connecting rod is connected with the other end of the first connecting rod, and the other end of the second connecting rod is connected with the clamping seat.

[0010] In some embodiments, an installation space is provided on the clamping seat; the transmission assembly further includes: a transmission rod, which is rotatably connected with the main body, one end of the transmission rod is inserted into the clamping seat, the other end of the transmission rod passes through the main body and protrudes from the outer surface of the main body; the first connecting rod is fixedly connected with the other end of the transmission rod; the second connecting rod is arranged in the installation space and is fixedly connected with the transmission rod.

[0011] In some embodiments, a first guiding groove is provided on the second connecting rod, and the first guiding groove extends along the length direction of the second connecting rod; a first guiding member is provided on the clamping seat, and the first guiding member is arranged in the first guiding groove and can slide in the first guiding groove.

[0012] In some embodiments, a second guiding groove is provided on the clamping seat, and the second guiding groove extends along the axial direction of the through hole; a second guiding member is provided on the second connecting rod, and the second guiding member is arranged in the second guiding groove and can slide in the second guiding groove.

[0013] In some embodiments, the transmission assembly includes two connecting rods, the middle parts of the two connecting rods are hinged, one ends of the two connecting rods are respectively connected to the two clamping seats, and the other ends of the two connecting rods are connected to the control member.

[0014] In some embodiments, the transmission assembly includes: at least one cross group, the cross group includes two cross connecting rods, the middle parts of the two cross connecting rods cross each other, one ends of the two cross connecting rods are respectively connected to the two clamping seats; and an end rod group, the end rod group is respectively connected to the cross group and the control member, the end rod group includes two end connecting rods, one ends of the two end connecting rods are hinged, and the other ends of the two end connecting rods are respectively connected to the other ends of the two cross connecting rods in one cross group.

[0015] In some embodiments, the clamping control device further includes: a second reset member, and the second reset member is arranged between the transmission assembly and the main body.

[0016] In some embodiments, the clamping control device further includes: a third reset member, and the third reset member is arranged between the clamping seat and the main body.

[0017] In some embodiments, the clamping control device further includes: a sliding member, the sliding member is arranged on the main body and is connected to the transmission assembly, and the sliding member can slide relative to the main body along the axial direction of the through hole.

[0018] In some embodiments, a guiding groove is provided on the main body, and the guiding groove extends along the axial direction of the through hole; the sliding member is arranged in the guiding groove and can slide in the guiding groove.

[0019] In some embodiments, the sliding member is connected to the middle part of the transmission assembly; or the sliding member is connected to the end part of the transmission assembly.

[0020] In some embodiments, the clamping seat includes: a rotating arm, the rotating arm is arranged on the main body and can rotate relative to the main body, one end of the rotating arm is connected to the clamping control device; and a clamping part, the clamping part is connected to the other end of the rotating arm, and the mounting space is provided on the clamping part.

[0021] In some embodiments, a first guiding structure is provided on the clamping seat, and a second guiding structure is provided on the main body. One of the first guiding structure and the second guiding structure is a sliding groove, and the other is a sliding rail. The sliding rail can slide in the sliding groove so that the clamping seat slides linearly relative to the main body.

[0022] In some embodiments, the clamping seat can slide linearly relative to the main body; two second guiding structures are provided on the main body, and one clamping seat cooperates with one first guiding structure; wherein, axially of the through hole, the two second guiding structures are stacked; or radially of the through hole, the two second guiding structures are arranged side by side.

[0023] Compared with the prior art, the above technical solution has the following advantages:

[0024] The suture needles are alternately locked on the two clamping seats, so that the suture needles drive the suture thread to pass through the human mucosal tissue. Repeating the operation multiple times enables the suture needles to pass through the human mucosal tissue multiple times to achieve the purpose of suturing the human mucosal tissue. During the above suturing process, only the two ends of the suture needles need to be fixed, without the need for complex fixing structures and driving structures, thereby reducing the complexity of the product, increasing the error tolerance rate of the suture needles during suturing, further reducing the operation difficulty of the product, making the product easier to operate. In addition, the suture needles have neither complex movement trajectories nor need to move in complex channels, thereby improving the smoothness of the movement of the suture needles during suturing and also increasing the error tolerance rate of the suture needles, making the operation of the product simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 Structural schematic diagram of the first embodiment of the double-headed needle and thread suturing device provided by some embodiments of the present application;

[0027] Figure 2 is Figure 1 Exploded structural schematic diagram of the double-headed needle and thread suturing device shown;

[0028] Figure 3 is Figure 1 Side view structural schematic diagram of the double-headed needle and thread suturing device shown;

[0029] Figure 4 isFigure 3 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown;

[0030] Figure 5 For Figure 1 Structural schematic diagram of the double-headed needle and thread stitching device shown in another state;

[0031] Figure 6 For Figure 5 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown;

[0032] Figure 7 For Figure 1 Structural schematic diagram of the double-headed needle and thread stitching device shown in yet another state;

[0033] Figure 8 For Figure 7 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown;

[0034] Figure 9 For Figure 2 Structural schematic diagram of the locking member shown in;

[0035] Figure 10 For Figure 2 Structural schematic diagram of the sewing needle shown in;

[0036] Figure 11 For Figure 2 Structural schematic diagram of the main body shown in;

[0037] Figure 12 Structural schematic diagram of the second embodiment of the double-headed needle and thread stitching device provided by some embodiments of the present application;

[0038] Figure 13 For Figure 12 Exploded structural schematic diagram of the double-headed needle and thread stitching device shown;

[0039] Figure 14 For Figure 12 Side view structural schematic diagram of the double-headed needle and thread stitching device shown;

[0040] Figure 15 For Figure 14 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown;

[0041] Figure 16 For Figure 12 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown in another state;

[0042] Figure 17 For Figure 12 Partial sectional structural schematic diagram of the double-headed needle and thread stitching device shown in yet another state;

[0043] Figure 18 Schematic structural diagram of the third embodiment of the double-headed needle and thread suture device provided in some embodiments of the present application;

[0044] Figure 19 For Figure 18 Exploded structural diagram of the double-headed needle and thread suture device shown;

[0045] Figure 20 For Figure 18 Schematic side view structural diagram of the double-headed needle and thread suture device shown;

[0046] Figure 21 For Figure 20 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device shown;

[0047] Figure 22 For Figure 18 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in another state shown;

[0048] Figure 23 For Figure 18 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in yet another state shown;

[0049] Figure 24 Schematic structural diagram of the fourth embodiment of the double-headed needle and thread suture device provided in some embodiments of the present application;

[0050] Figure 25 For Figure 24 Exploded structural diagram of the double-headed needle and thread suture device shown;

[0051] Figure 26 For Figure 24 Schematic side view structural diagram of the double-headed needle and thread suture device shown;

[0052] Figure 27 For Figure 26 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device shown;

[0053] Figure 28 For Figure 24 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in another state shown;

[0054] Figure 29 For Figure 24 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in yet another state shown;

[0055] Figure 30 For Figure 25 Schematic structural diagram of the main body shown in;

[0056] Figure 31Schematic structural diagram of the fifth embodiment of the double-headed needle and thread suture device provided by some embodiments of the present application;

[0057] Figure 32 For Figure 31 Exploded structural diagram of the double-headed needle and thread suture device shown;

[0058] Figure 33 For Figure 31 Schematic side view structural diagram of the double-headed needle and thread suture device shown;

[0059] Figure 34 For Figure 33 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device shown;

[0060] Figure 35 For Figure 31 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in another state shown;

[0061] Figure 36 For Figure 31 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in yet another state shown;

[0062] Figure 37 For Figure 32 Schematic structural diagram of the main body shown in;

[0063] Figure 38 Schematic structural diagram of the sixth embodiment of the double-headed needle and thread suture device provided by some embodiments of the present application;

[0064] Figure 39 For Figure 38 Exploded structural diagram of the double-headed needle and thread suture device shown;

[0065] Figure 40 For Figure 38 Schematic side view structural diagram of the double-headed needle and thread suture device shown;

[0066] Figure 41 For Figure 40 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device shown;

[0067] Figure 42 For Figure 38 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in another state shown;

[0068] Figure 43 For Figure 38 Schematic partial cross-sectional view structural diagram of the double-headed needle and thread suture device in yet another state shown;

[0069] Figure 44 Schematic structural diagram of one embodiment of the suture needle described in the present application.

[0070] The reference numerals are as follows:

[0071] 10. Main body; 11. Through hole; 12. Guide groove; 13. Second guiding structure;

[0072] 20. Clamping seat; 21. Limiting channel; 22. Installation space; 23. First guiding member; 24. Second guiding groove; 25. Rotating arm; 26. Clamping portion; 27. First guiding structure;

[0073] 30. Locking assembly; 31. Locking member; 311. Clamping groove; 32. First reset member;

[0074] 40. Suture assembly; 41. Suture needle; 411. Needle body; 412. Puncture portion; 413. Step; 42. Suture thread;

[0075] 50. Locking control member;

[0076] 60. Clamping control device; 61. Transmission assembly; 611. Transmission connecting rod; 6111. First connecting rod; 6112. Second connecting rod; 6113. First guiding groove; 6114. Second guiding member; 612. Transmission rod; 613. Connecting rod; 614. Cross group; 6141. Cross connecting rod; 615. End rod group; 6151. End connecting rod; 62. Control member; 63. Second reset member; 64. Third reset member; 65. Sliding member;

[0077] 70. Cover plate;

[0078] 100. Endoscope. Detailed implementation manners

[0079] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become more clearly defined.

[0080] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0081] The "embodiments" mentioned in the present application mean that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0082] As used herein, the term "exemplary" means "serving as an example, instance, or illustration." Any embodiment described as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0083] In the description of the present application, technical terms such as "first," "second," "third," etc. are only used to distinguish different objects and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features.

[0084] In the description of the present application, the orientation or positional relationship indicated by technical terms such as "upper," "lower," "inner," "outer," "front," "rear," "left," "right," "top," "bottom," etc. is the orientation or positional relationship based on the working state of the present application. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present application.

[0085] In the description of the present application, unless otherwise clearly specified and limited, technical terms such as "installed," "connected," "coupled," "fixed," etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also 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 or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0086] In the description of the present application, the meaning of "a plurality" is two or more (including two), unless otherwise clearly and specifically limited.

[0087] In the description of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are only for illustrative purposes and should not constitute any limitation to the present application.

[0088] The technical solutions of the embodiments of the present application are described in detail below in conjunction with the drawings. The technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0089] Such as Figures 1 to 44As shown in the figure, the double-headed needle and thread suture device provided by the present application includes: a main body 10, two clamping seats 20, two locking components 30, a suture component 40, a locking control member 50, and a clamping control device 60.

[0090] A through hole 11 penetrating the main body 10 is provided on the main body 10, and the through hole 11 is configured to cooperate with the endoscope 100.

[0091] Two clamping seats 20 are installed on the main body 10 and are located on both sides of the through hole 11. At least one clamping seat 20 can move relative to the main body 10, and an installation space 22 is provided on the clamping seat 20.

[0092] Two locking components 30 are respectively arranged in the installation spaces 22 of the two clamping seats 20, and the locking components 30 have a locked state and an unlocked state.

[0093] The suture component 40 includes a suture needle 41 and a suture thread 42. The suture needle 41 includes a needle body 411. The needle body 411 has two opposite ends, as Figure 10 and Figure 44 shown, and at least one end of the needle body 411 is provided with a puncture portion 412. The two ends of the needle body 411 can be respectively inserted into the installation spaces 22 of the two clamping seats 20 and locked with the locking components 30.

[0094] The locking control member 50 is connected to the locking component 30, and the locking control member 50 is configured to control the locking component 30 to switch between the locked state and the unlocked state.

[0095] The clamping control device 60 is connected to at least one clamping seat 20, and the clamping control device 60 is configured to drive the clamping seat 20 to move relative to the main body 10.

[0096] In the double-headed needle and thread suture device provided by the present application, the suture needle 41 is alternately locked on the two clamping seats 20, so that the suture needle 41 drives the suture thread 42 to pass through the human mucosal tissue. By repeating the operation multiple times, the suture needle 41 passes through the human mucosal tissue multiple times to achieve the purpose of suturing the human mucosal tissue. During the above suture process, only the two ends of the suture needle 41 need to be fixed, and no complex fixing structure and driving structure are required, thereby reducing the complexity of the product, improving the fault tolerance rate of the suture needle 41 during the suture process, further reducing the operation difficulty of the product, making the product easier to operate. In addition, the suture needle 41 has neither a complex movement trajectory nor needs to move in a complex channel, thereby improving the smoothness of the movement of the suture needle 41 during the suture process and also improving the fault tolerance rate of the suture needle 41, making the operation of the product simple and convenient.

[0097] As Figures 1 to 8 shown, the specific operation of the double-headed needle and thread suture device is as follows:

[0098] First step: Connect both ends of the suture needle 41 to the locking components 30 on two clamping seats 20 respectively. At this time, both locking components 30 are in the locked state. Then, put the double-headed suture device on the front end of the endoscope 100, and then insert the double-headed suture device into the surgical operation site in the human body together with the endoscope 100.

[0099] Second step: Make one locking component 30 in the unlocked state through the locking control member 50, separate one end of the suture needle 41 from the clamping seat 20, then make the distance between the two clamping seats 20 larger through the clamping control device 60, and then clamp or anchor the mucosa tissue to be punctured with an endoscopic instrument such as an existing endoscopic forceps, and pull it into the space between the two clamping seats 20. Then, make the distance between the two clamping seats 20 smaller through the clamping control device 60. During this process, the puncturing part 412 at one end of the suture needle 41 penetrates through the mucosa tissue to be punctured and inserts into one locking component 30, and one locking component 30 is in the locked state.

[0100] Third step: Make the other locking component 30 in the unlocked state through the locking control member 50, separate the other end of the suture needle 41 from the other clamping seat 20, then make the distance between the two clamping seats 20 larger through the clamping control device 60. During this process, the suture needle 41 as a whole drives the suture thread to penetrate through the mucosa tissue to be punctured. At this time, the position of the suture needle 41 is exchanged, that is, the suture needle 41 changes from one clamping seat 20 to the other clamping seat 20. Then, make the distance between the two clamping seats 20 smaller through the clamping control device 60 so that the other end of the suture needle 41 inserts into the other locking component 30, and the other locking component 30 is in the locked state to complete one suture of the mucosa tissue to be punctured. In addition, if puncturing parts 412 are provided at both ends of the suture needle 41, during the above process, the puncturing part 412 at the other end of the suture needle 41 also penetrates through the mucosa tissue to be punctured and inserts into the other locking component 30; if a puncturing part 412 is provided at one end of the suture needle 41 and no puncturing part 412 is provided at the other end of the suture needle 41, during the above process, the other end of the suture needle 41 bypasses the mucosa tissue to be punctured and inserts into the other locking component 30.

[0101] As Figures 1 to 11 shown, in an embodiment of the present application, steps 413 are respectively provided at both ends of the needle body 411. In a specific embodiment of the present application, a groove is provided at the end of the needle body 411, and the groove forms a step 413 on the needle body 411.

[0102] The clamping seat 20 is provided with a limiting channel 21, and the end of the suture needle 41 passes through the limiting channel 21 and is inserted into the installation space 22. In an embodiment of the present application, the limiting channel 21 can be a through hole 11 or a groove, as long as it can ensure that the end of the suture needle 41 can pass through. In another embodiment of the present application, a guiding inclined surface is provided at the end of the suture needle 41. If the end of the suture needle 41 is a puncture portion 412 provided at one end of the needle body 411, the guiding inclined surface is the inclined surface of the puncture portion 412. If the end of the suture needle 41 is one end of the needle body 411, a guiding inclined surface is provided on one end of the needle body 411.

[0103] The locking assembly 30 includes: a locking member 31 and a first reset member 32.

[0104] The locking member 31 is arranged in the installation space 22 and can slide relative to the clamping seat 20. A clamping groove 311 is provided on the locking member 31 and is adapted to cooperate with the step 413. In the locked state, the clamping groove 311 can be clamped with the step 413. Specifically, the step 413 on one side surface of the needle body 411 is clamped with the clamping groove 311, and the other side surface of the needle body 411 abuts against the channel wall of the limiting channel 21. The other side surface of the needle body 411 refers to: the side surface of the needle body 411 that is far from the side where the suture needle 41 cooperates with the clamping groove 311. Specifically, the locking member 31 is fixed in the installation space 22 through the cover plate 70.

[0105] The first reset member 32 is arranged between the locking member 31 and the clamping seat 20. In an embodiment of the present application, the first reset member 32 is a spring.

[0106] During the process of locking the suture needle 41 with the locking component 30, the suture needle 41 is inserted into the locking component 30 through the limiting channel 21. The end of the suture needle 41 pushes open the locking member 31, causing the locking member 31 to move relative to the clamping seat 20. At this time, the first reset member 32 stores energy. When it moves to the clamping position, the first reset member 32 releases force, and the first reset member 32 causes the locking member 31 to move, so that the step 413 is snapped into the clamping groove 311, so that the suture needle 41 is locked with the locking member 31, that is, the locking component 30 is in the locked state. When it is necessary to change the locking component 30 from the locked state to the unlocked state, the locking member 31 is controlled to move relative to the clamping seat 20 through the locking control member 50. At this time, the first reset member 32 stores energy to separate the suture needle 41 from the locking component 30. After removing the external force applied to the locking control member 50, the first reset member 32 releases force to reset the locking member 31. The structure of the above-mentioned locking component 30 is simple. Only when the locking component 30 is changed from the locked state to the unlocked state, it is necessary to control the locking control member 50. Under the action of the first reset member 32, the normal state of the locking component 30 is the locked state, that is, there is no need to reciprocally operate the locking control member 50 when the locking component 30 switches between the two states, which is convenient to operate, reduces the operation times of the product, and reduces the fatigue degree of the operator.

[0107] In addition to the above structure, the locking component can specifically be: the locking component includes two clamping arms, and the two clamping arms can directly clamp the suture needle. At this time, the locking component is in the locked state; by controlling the locking control member, the two clamping arms are separated, and at this time, the locking component is in the unlocked state. A torsion spring can be arranged between the two clamping arms, and under the action of the torsion spring, the normal state of the locking component is the locked state.

[0108] Those skilled in the art should understand that in addition to the structure of the above-mentioned locking component, any structure that can ensure the fixation of the suture needle should be within the protection scope of this application, and will not be listed one by one here.

[0109] The following specifically describes several embodiments of the present application in conjunction with the drawings:

[0110] Embodiment 1

[0111] As Figures 1 to 8 shown, the double-headed needle thread suture device provided by the present application includes: a main body 10, two clamping seats 20, two locking components 30, a suture component 40, a locking control member 50, and a clamping control device 60.

[0112] The clamping seat 20 includes: a rotating arm 25 and a clamping portion 26.

[0113] The rotating arm 25 is arranged on the main body 10 and can rotate relative to the main body 10. One end of the rotating arm 25 is connected to the clamping control device 60.

[0114] The clamping part 26 is connected to the other end of the rotating arm 25, and an installation space 22 is provided on the clamping part 26.

[0115] The clamping control device 60 includes: a transmission component 61 and a control member 62.

[0116] The transmission component 61 is arranged on the main body 10 and can move relative to the main body 10. The transmission component 61 is connected to the clamping seat 20.

[0117] The control member 62 is connected to the transmission component 61.

[0118] The transmission component 61 includes a transmission link 611. One end of the transmission link 611 is connected to the control member 62, and the other end of the transmission link 611 is connected to the clamping seat 20.

[0119] The transmission component 61 includes two transmission links 611. One ends of the two transmission links 611 intersect and are connected to the control member 62, and the other ends of the two transmission links 611 are respectively connected to the two clamping seats 20.

[0120] The structure of the transmission link 611 is simple. On the one hand, it is easy to manufacture, reducing the production and manufacturing cost of the product. On the other hand, it is easy to assemble and connect with other components, thus reducing the assembly difficulty of the product, improving the production efficiency of the product, and further reducing the production and manufacturing cost of the product. In addition, the transmission link 611 can withstand large forces and torque transmission, so as to be able to transmit motion and power more accurately.

[0121] As Figures 1 to 8 shown, in an embodiment of the present application, the clamping control device 60 further includes: a second reset member 63.

[0122] The second reset member 63 is arranged between the transmission component 61 and the main body 10. Specifically, the second reset member 63 is a spring.

[0123] After removing the external force applied to the control member 62, under the action of the second reset member 63, the transmission component 61 is reset, and the transmission component 61 drives the clamping seat 20 to reset, thus realizing the rapid automatic reset of the product, reducing the need for manual intervention and adjustment, saving operation time, and improving work efficiency. In addition, the structure of the second reset member 63 is simple, and there is no need for complex operations to realize the reset of components, which is convenient to use.

[0124] As Figures 1 to 8 shown, in an embodiment of the present application, the clamping control device 60 further includes: a sliding member 65.

[0125] The slider 65 is arranged on the main body 10 and connected to the transmission component 61. The slider 65 can slide relative to the main body 10 along the axial direction of the through hole 11. In a specific embodiment of the present application, the slider 65 is connected to the end of the transmission component 61.

[0126] The slider 65 plays a guiding role, enabling the transmission component 61 to move accurately along a predetermined trajectory and direction, preventing deviation or departure, helping to reduce shaking and errors during movement, and improving the overall movement accuracy. In addition, the slider 65 can make the transmission component 61 move more smoothly during movement, avoid jamming or blocking phenomena, and improve the product use comfort.

[0127] In an embodiment of the present application, a guiding groove 12 is arranged on the main body 10, and the guiding groove 12 extends along the axial direction of the through hole 11.

[0128] The slider 65 is arranged in the guiding groove 12 and can slide in the guiding groove 12.

[0129] Since the volume of the main body 10 is relatively large, arranging the guiding groove 12 on the main body 10 has little impact on the overall strength of the product, thus ensuring the use reliability of the product.

[0130] In another embodiment of the present application, a guide rail is arranged on the main body, and a guide groove matching with the guide rail is arranged on the slider, and the guide rail can slide in the guide groove.

[0131] Embodiment Two

[0132] As Figures 12 to 17 shown, the structure of Embodiment Two is substantially the same as that of Embodiment One. The specific difference is that the transmission component 61 includes two connecting rods. The middle parts of the two connecting rods are hinged. One ends of the two connecting rods are respectively connected to the two clamping seats 20, and the other ends of the two connecting rods are connected to the control member 62. In an embodiment of the present application, the slider 65 is connected to the middle part of the transmission component 61.

[0133] On the one hand, the structure of the above-mentioned transmission component 61 is relatively simple, easy to manufacture and maintain. On the other hand, the transmission of the transmission component 61 is relatively stable, reducing vibration and impact during movement, thereby improving the stability and reliability of the transmission component 61. In addition, the movements of the two connecting rods in the above-mentioned transmission component 61 cooperate and coordinate with each other. In particular, the power arm is lengthened, which is more labor-saving and has a high transmission accuracy.

[0134] As Figures 12 to 17 shown, the clamping control device 60 includes: a third reset member 64.

[0135] The third reset member 64 is arranged between the clamping seat 20 and the main body 10. Specifically, the third reset member 64 is a torsion spring.

[0136] After removing the external force applied to the control member 62, under the action of the third reset member 64, the clamping seat 20 is reset, and the clamping seat 20 drives the transmission assembly 61 to reset, thereby realizing the rapid automatic reset of the product, reducing the need for manual intervention and adjustment, saving operation time, and improving work efficiency. In addition, the structure of the third reset member 64 is simple, and there is no need for complex operations to realize the reset of components, which is convenient to use.

[0137] Embodiment III

[0138] As Figures 18 to 23 shown, the structure of Embodiment III is substantially the same as that of Embodiment I, and the specific difference lies in that: the transmission assembly 61 includes: at least one cross group 614 and an end rod group 615.

[0139] The cross group 614 includes two cross links 6141, the middle parts of the two cross links 6141 cross each other, and one end of each of the two cross links 6141 is connected to the two clamping seats 20 respectively.

[0140] The end rod group 615 is respectively connected to the cross group 614 and the control member 62. The end rod group 615 includes two end links 6151, one end of the two end links 6151 is hinged, and the other end of the two end links 6151 is respectively connected to the other ends of the two cross links 6141 in a cross group 614.

[0141] The above-mentioned transmission assembly 61 makes the overall structure more stable, reduces the shaking and deformation of the transmission assembly 61, thereby improving the transmission accuracy and reliability. In addition, the above-mentioned transmission assembly 61 can more evenly disperse and transmit force, making the transmission more stable and reducing the concentration and wear of force.

[0142] Embodiment IV

[0143] As Figures 24 to 30 shown, the double-headed needle and thread stitching device provided by the present application includes: a main body 10, two clamping seats 20, two locking assemblies 30, a stitching assembly 40, a locking control member 50, and a clamping control device 60.

[0144] A first guiding structure 27 is provided on the clamping seat 20, and a second guiding structure 13 is provided on the main body 10. One of the first guiding structure 27 and the second guiding structure 13 is a sliding groove, and the other is a sliding rail. The sliding rail can slide in the sliding groove so that the clamping seat 20 slides linearly relative to the main body 10.

[0145] The clamping seat 20 can slide linearly relative to the main body 10.

[0146] Two second guiding structures 13 are provided on the main body 10, and one clamping seat 20 is matched with one first guiding structure 27.

[0147] Among them, in the axial direction of the through hole 11, two second guiding structures 13 are stacked.

[0148] The clamping control device 60 includes: a transmission assembly 61 and a control member 62.

[0149] The transmission assembly 61 is arranged on the main body 10 and can move relative to the main body 10. The transmission assembly 61 is connected to the clamping seat 20.

[0150] The control member 62 is connected to the transmission assembly 61.

[0151] The transmission assembly 61 includes a transmission link 611. One end of the transmission link 611 is connected to the control member 62, and the other end of the transmission link 611 is connected to the clamping seat 20.

[0152] The transmission link 611 includes: a first link 6111 and a second link 6112.

[0153] One end of the first link 6111 is connected to the control member 62.

[0154] One end of the second link 6112 is connected to the other end of the first link 6111, and the other end of the second link 6112 is connected to the clamping seat 20.

[0155] A first guiding groove 6113 is arranged on the second link 6112, and the first guiding groove 6113 extends along the length direction of the second link 6112.

[0156] A first guiding member 23 is arranged on the clamping seat 20. The first guiding member 23 is arranged in the first guiding groove 6113 and can slide in the first guiding groove 6113.

[0157] The transmission link 611 is in an "L" shape, which can reduce the space occupied by the transmission link 611 in its width direction, thereby improving the space utilization rate of the product, making the space occupied by the product smaller, so that the double-headed needle suture device can be smoothly inserted into or withdrawn from the human body, improving the use comfort of the product. At the same time, the probability of scratching the mucosal tissue during the process of the device entering and exiting the human body lumen is reduced.

[0158] In addition, the structure of the transmission link 611 is simple. On the one hand, it is easy to manufacture, reducing the production and manufacturing cost of the product. On the other hand, it is easy to assemble and connect with other components, thereby reducing the assembly difficulty of the product, improving the production efficiency of the product, and further reducing the production and manufacturing cost of the product. In addition, the transmission link 611 can withstand large forces and torque transmission, so as to be able to transmit motion and power more accurately.

[0159] Such as Figures 24 to 30As shown, in one embodiment of the present application, the clamping control device 60 further includes: a second reset member 63.

[0160] The second reset member 63 is disposed between the transmission assembly 61 and the main body 10. Specifically, the second reset member 63 is a spring.

[0161] After removing the external force applied to the control member 62, under the action of the second reset member 63, the transmission assembly 61 is reset, and the transmission assembly 61 drives the clamping seat 20 to reset, thereby realizing the rapid automatic reset of the product, reducing the need for manual intervention and adjustment, saving operation time, and improving work efficiency. In addition, the structure of the second reset member 63 is simple, and there is no need for complex operations to realize the reset of components, which is convenient to use.

[0162] As Figures 24 to 30 shown, in one embodiment of the present application, the clamping control device 60 further includes: a sliding member 65.

[0163] The sliding member 65 is disposed on the main body 10 and is connected to the transmission assembly 61. The sliding member 65 can slide relative to the main body 10 along the axial direction of the through hole 11. In a specific embodiment of the present application, the sliding member 65 is connected to the end of the transmission assembly 61.

[0164] The sliding member 65 plays a guiding role, enabling the transmission assembly 61 to move accurately along a predetermined trajectory and direction, preventing deviation or deflection, helping to reduce shaking and errors during movement, and improving the overall movement accuracy. In addition, the sliding member 65 can make the transmission assembly 61 move more smoothly during movement, avoiding jamming or blocking phenomena, and improving the product use comfort.

[0165] As Figures 24 to 30 shown, in one embodiment of the present application, a guiding groove 12 is provided on the main body 10, and the guiding groove 12 extends along the axial direction of the through hole 11.

[0166] The sliding member 65 is disposed in the guiding groove 12 and can slide in the guiding groove 12.

[0167] Since the volume of the main body 10 is relatively large, setting the guiding groove 12 on the main body 10 has little impact on the overall strength of the product, thereby ensuring the use reliability of the product.

[0168] In another embodiment of the present application, a guide rail is provided on the main body, and a guide groove matching the guide rail is provided on the sliding member, and the guide rail can slide in the guide groove.

[0169] Embodiment Five

[0170] As Figures 31 to 37 shown, the structure of Embodiment Five is substantially the same as that of Embodiment Four, and the specific difference lies in:

[0171] The clamping seat 20 is provided with an installation space 22.

[0172] The transmission assembly 61 further includes: a transmission rod 612, the transmission rod 612 is rotatably connected to the main body 10, one end of the transmission rod 612 is inserted into the clamping seat 20, and the other end of the transmission rod 612 passes through the main body 10 and protrudes from the outer surface of the main body 10.

[0173] The first connecting rod 6111 is fixedly connected to the other end of the transmission rod 612.

[0174] The second connecting rod 6112 is arranged in the installation space 22 and is fixedly connected to the transmission rod 612.

[0175] Wherein, in the radial direction of the through hole 11, two second guiding structures 13 are arranged side by side.

[0176] After assembly, the first connecting rod 6111, the transmission rod 612 and the second connecting rod 6112 are an integral body, and the first connecting rod 6111 and the second connecting rod 6112 can rotate synchronously under the drive of the control member 62. The second connecting rod 6112 is arranged in the clamping seat 20 and is connected to the clamping seat 20 to drive the clamping seat 20 to move. Since the acting point of the driving force applied by the second connecting rod 6112 is located at the middle position of the clamping seat 20, the force is balanced, which avoids the situation of jamming during the movement of the clamping seat 20. At the same time, this enables the driving force to be transmitted to the clamping seat 20 more effectively, ensuring the effectiveness of the device.

[0177] Embodiment Six

[0178] As Figures 38 to 43 shown, the structure of Embodiment Six is substantially the same as that of Embodiment Four, and the specific difference lies in:

[0179] The clamping seat 20 is provided with a second guiding groove 24, and the second guiding groove 24 extends along the axial direction of the through hole 11.

[0180] The second connecting rod 6112 is provided with a second guiding member 6114, and the second guiding member 6114 is arranged in the second guiding groove 24 and can slide in the second guiding groove 24.

[0181] The volume of the clamping seat 20 is relatively large. By arranging the second guiding groove 24 on the clamping seat 20, the influence on the overall strength of the product is relatively small, thus ensuring the use reliability of the product.

[0182] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A double-ended needle and thread suturing device, characterized in that: The double-ended needle and thread suturing device comprises: a main body, the main body being provided with a through hole therethrough, the through hole being configured to cooperate with an endoscope; Two clamping seats, the two clamping seats are mounted on the main body and are located on both sides of the through hole, at least one of the clamping seats can move relative to the main body, and an installation space is provided on the clamping seat; Two locking assemblies, the two locking assemblies are respectively arranged in the installation space of the two clamping seats, and the locking assemblies have a locked state and an unlocked state; A suturing assembly, the suturing assembly comprising a suturing needle and a suturing thread, the suturing needle comprising a needle body, the needle body having two oppositely disposed ends, and at least one end of the needle body being provided with a puncture portion, the two ends of the needle body being respectively insertable into the installation spaces of the two clamping seats and being locked with the locking assembly; a locking control member connected to the locking assembly, the locking control member being configured to control the locking assembly to switch between a locked state and an unlocked state; and A clamping control device is connected to at least one of the clamping seats, and is configured to drive the clamping seat to move relative to the main body.

2. The double-ended needle and thread suturing device according to claim 1, characterized in that: Both ends of the needle body are respectively provided with steps; The clamping seat is provided with a limiting passage, and the end of the suture needle passes through the limiting passage and is inserted into the installation space; The locking assembly comprises: a locking member, which is arranged in the installation space and can slide relative to the clamping seat, and the locking member is provided with a clamping groove matched with the step, and in a locked state, the clamping groove can be clamped with the step; and A first restoring member is disposed between the locking member and the clamping seat.

3. The double-ended needle and thread suturing device according to claim 1, characterized in that: The clamping control device comprises: a transmission assembly, the transmission assembly is arranged on the main body and can move relative to the main body, the transmission assembly is connected to the clamping seat; and A control member is connected to the transmission assembly.

4. The double-ended needle and thread suturing device according to claim 3, characterized in that: The transmission assembly comprises a transmission connecting rod, one end of which is connected to the control member, and the other end of which is connected to the clamping seat.

5. The double-ended needle and thread suturing device according to claim 4, characterized in that: The transmission assembly comprises two transmission connecting rods, one ends of the two transmission connecting rods intersect and are connected to the control member, and the other ends of the two transmission connecting rods are respectively connected to the two clamping seats.

6. The double-ended needle and thread suturing device according to claim 4, characterized in that: The transmission connecting rod comprises: A first connecting rod, one end of which is connected to the control member; and A second connecting rod, one end of which is connected to the other end of the first connecting rod, and the other end of which is connected to the clamping seat.

7. The double-ended needle and thread suturing device according to claim 6, characterized in that: The clamping seat is provided with an installation space; The transmission assembly further includes: a transmission rod, the transmission rod is rotatably connected to the main body, one end of the transmission rod is inserted into the clamping seat, and the other end of the transmission rod passes through the main body and protrudes from the outer surface of the main body; The first connecting rod is fixedly connected to the other end of the transmission rod; The second connecting rod is arranged in the installation space and is fixedly connected to the transmission rod.

8. The double-ended needle and thread suturing device according to claim 6, characterized in that: The second connecting rod is provided with a first guide groove, and the first guide groove extends along the length direction of the second connecting rod; The clamping seat is provided with a first guide member, which is arranged in the first guide groove and can slide in the first guide groove.

9. The double-ended needle and thread suturing device according to claim 6, characterized in that: The clamping seat is provided with a second guide groove, and the second guide groove extends along the axial direction of the through hole; The second connecting rod is provided with a second guide member, and the second guide member is arranged in the second guide groove and can slide in the second guide groove.

10. The double-ended needle and thread suturing device according to claim 3, characterized in that: The transmission assembly comprises two connecting rods, the middle parts of the two connecting rods are hinged, one end of the two connecting rods is respectively connected to the two clamping seats, and the other end of the two connecting rods is connected to the control member.

11. The double-ended needle and thread suturing device according to claim 3, characterized in that: The transmission assembly comprises: at least one cross group, the cross group comprises two cross links, the middle parts of the two cross links are crossed, and one end of the two cross links is respectively connected to the two clamping seats; and An end rod group, wherein the end rod group is respectively connected to the cross group and the control member, and the end rod group includes two end connecting rods, one end of the two end connecting rods is hinged, and the other end of the two end connecting rods is respectively connected to the other end of two cross connecting rods in a cross group.

12. The double-ended needle and thread suturing device according to claim 3, characterized in that: The clamping control device further includes: a second reset member, which is arranged between the transmission assembly and the main body.

13. The double-ended needle and thread suturing device according to claim 3, characterized in that: The clamping control device further includes: a third resetting member, and the third resetting member is arranged between the clamping seat and the main body.

14. The double-ended needle and thread suturing device according to claim 3, characterized in that: The clamping control device further comprises: a sliding member, which is arranged on the main body and connected to the transmission assembly, and the sliding member can slide relative to the main body along the axial direction of the through hole.

15. The double-ended needle and thread suturing device according to claim 14, characterized in that: The main body is provided with a guide groove, and the guide groove extends along the axial direction of the through hole; The sliding member is disposed in the guide groove and is slidable in the guide groove.

16. The double-ended needle and thread suturing device according to claim 14, characterized in that: The sliding member is connected to the middle part of the transmission assembly; or The sliding member is connected to the end of the transmission assembly.

17. The double-ended needle and thread suturing device according to any one of claims 1 to 16, characterized in that: The clamping seat comprises: a rotating arm, which is arranged on the main body and can rotate relative to the main body, and one end of the rotating arm is connected to the clamping control device; and A clamping portion is connected to the other end of the rotating arm, and the installation space is provided on the clamping portion.

18. The double-ended needle and thread suturing device according to any one of claims 1 to 16, characterized in that: The clamping seat is provided with a first guide structure, and the main body is provided with a second guide structure. One of the first guide structure and the second guide structure is a slide groove, and the other is a slide rail. The slide rail can slide in the slide groove so that the clamping seat slides in a straight line relative to the main body.

19. The double-ended needle and thread suturing device according to claim 18, characterized in that: The clamping seat can slide along a straight line relative to the main body; Two second guide structures are arranged on the main body, and one clamping seat cooperates with one first guide structure; Wherein, in the axial direction of the through hole, two of the second guide structures are stacked; or In the radial direction of the through hole, two of the second guide structures are arranged side by side.

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