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] The present application relates to the technical field of medical devices for endoscopic minimally invasive surgery, and in particular to a double-ended needle and thread suturing device. Background Art

[0002] Suturing gastrointestinal mucosal tissue defects under flexible endoscopy is an important endoscopic technique. Among them, suture suturing is the most classic technique, which is a truly standardized suture of mucosa to mucosa kissing, which is more conducive to defect repair. However, it is difficult to achieve suture suturing efficiently under flexible endoscopy, and there is no efficient and reliable suturing device that matches this technology.

[0003] In the prior art, there is a thread suturing device called a "C-type suture needle", which is a relatively good implementation scheme. However, the structure of this device is relatively complex, and the precision requirements for parts processing and assembly are quite high. In addition, the thickness and amount of mucosal tissue that can be sutured by this device are affected by the size of the "C-type" suture opening. Usually, the diameter of the suture opening is about 1 cm, which is very limited in size, making it difficult to suture too thick and too much mucosal tissue, which limits the development of endoscopic surgery. Summary of the invention

[0004] The embodiment of the present application provides a double-ended needle and thread suturing device, which comprises: a main body, which is provided with a through hole running through it, and the through hole is configured to cooperate with an endoscope; two clamping seats, which are installed on the main body and located on both sides of the through hole, at least one of which can move relative to the main body, and an installation space is provided on the clamping seat; two locking components, which 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 suturing component, which comprises a suturing component, Needle and suture thread, the suture needle includes a needle body, the needle body has two ends arranged opposite to each other, and at least one end of the needle body is provided with a puncture part, the two ends of the needle body can be respectively inserted into the installation space of the two clamping seats and locked with the locking assembly; a locking control component, the locking control component is connected to the locking assembly, the locking control component is configured to control the locking assembly to switch between a locked state and an unlocked state; and a clamping control device, the clamping control device is connected to at least one of the clamping seats, 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 snap-in groove matching the step is provided on the locking member, and in the locked state, the snap-in groove can be snap-connected 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 to the clamping seat; and a control member, which is connected to the transmission assembly.

[0007] In some embodiments, the transmission assembly includes 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.

[0008] In some embodiments, the transmission assembly includes 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.

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

[0010] In some embodiments, an installation space is provided on the clamping seat; the transmission assembly also includes: a transmission rod, which 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 out of 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 provided in the installation space and is fixedly connected to the transmission rod.

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

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

[0013] In some embodiments, the transmission assembly includes 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.

[0014] In some embodiments, the transmission assembly includes: at least one cross group, the cross group includes two cross links, the middle parts of the two cross links are crossed, and one end of the two cross links 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 links, one ends of the two end links are hinged, and the other ends of the two end links are respectively connected to the other ends of the two cross links in one of the cross groups.

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

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

[0017] In some embodiments, the clamping control device further includes: a sliding member, which is disposed 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.

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

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

[0020] In some embodiments, the clamping seat includes: a rotating arm, which 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 portion, which is connected to the other end of the rotating arm, and the installation space is arranged on the clamping portion.

[0021] In some embodiments, a first guide structure is provided on the clamping seat, and a second guide structure is provided on the main body. 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.

[0022] In some embodiments, the clamping seat can slide in a straight line relative to the main body; two second guide structures are provided on the main body, and one clamping seat cooperates with one first guide structure; wherein, in the axial direction of the through hole, the two second guide structures are stacked; or in the radial direction of the through hole, the two second guide structures are arranged side by side.

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

[0024] The suture needle is alternately locked on the two clamping seats so that the suture needle carries the suture thread through the human mucosal tissue. The operation is repeated many times so that the suture needle passes through the human mucosal tissue many times to achieve the purpose of suturing the human mucosal tissue. In the above-mentioned suturing process, only the two ends of the suture needle need to be fixed, and no complicated fixed structure and driving structure are required, thereby reducing the complexity of the product, so as to improve the fault tolerance of the suture needle during the suturing process, thereby reducing the operating difficulty of the product and making the product easier to operate. In addition, the suture needle has no complicated motion trajectory and does not need to move in a complex channel, thereby improving the smoothness of the movement of the suture needle during the suturing process, and also improving the fault tolerance of the suture needle, 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A schematic structural diagram of a first embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0027] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0028] Figure 3 for Figure 1 A schematic side view of the double-ended needle and thread suturing device shown;

[0029] Figure 4 for Figure 3 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0030] Figure 5 for Figure 1 The schematic diagram of the structure of the double-ended needle and thread suturing device shown is in another state;

[0031] Figure 6 for Figure 5 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0032] Figure 7 for Figure 1 The double-ended needle and thread suturing device is shown in a schematic structural diagram in another state;

[0033] Figure 8 for Figure 7 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0034] Fig. 9 for Figure 2 A schematic diagram of the structure of the locking member shown in ;

[0035] Fig.10 for Figure 2 The schematic diagram of the structure of the suture needle shown in;

[0036] Fig.11 for Figure 2 A schematic diagram of the structure of the subject shown in;

[0037] Fig.12 A schematic structural diagram of a second embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0038] Fig.13 for Fig.12 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0039] Fig.14 for Fig.12 A schematic side view of the double-ended needle and thread suturing device shown;

[0040] Fig.15 for Fig.14 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0041] Fig.16 for Fig.12 A partial cross-sectional structural schematic diagram of the double-ended needle and thread suturing device in another state;

[0042] Fig.17 for Fig.12 The double-ended needle and thread suturing device is shown in a partial cross-sectional structural schematic diagram in another state;

[0043] Fig.18 A schematic structural diagram of a third embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0044] Fig.19 for Fig.18 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0045] Fig. 20 for Fig.18 A schematic side view of the double-ended needle and thread suturing device shown;

[0046] Fig.21 for Fig. 20 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0047] Fig. 22 for Fig.18 A partial cross-sectional structural schematic diagram of the double-ended needle and thread suturing device in another state;

[0048] Fig.23 for Fig.18 The double-ended needle and thread suturing device is shown in a partial cross-sectional structural schematic diagram in another state;

[0049] Fig.24 A schematic structural diagram of a fourth embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0050] Fig.25 for Fig.24 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0051] Fig.26 for Fig.24 A schematic side view of the double-ended needle and thread suturing device shown;

[0052] Fig. 27 for Fig.26 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0053] Fig.28 for Fig.24 A partial cross-sectional structural schematic diagram of the double-ended needle and thread suturing device in another state;

[0054] Fig.29 for Fig.24 The double-ended needle and thread suturing device is shown in a partial cross-sectional structural schematic diagram in another state;

[0055] Fig.30 for Fig.25 A schematic diagram of the structure of the subject shown in;

[0056] Fig.31A schematic structural diagram of a fifth embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0057] Fig.32 for Fig.31 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0058] Fig.33 for Fig.31 A schematic side view of the double-ended needle and thread suturing device shown;

[0059] Fig.34 for Fig.33 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0060] Fig.35 for Fig.31 A partial cross-sectional structural schematic diagram of the double-ended needle and thread suturing device in another state;

[0061] Fig.36 for Fig.31 The double-ended needle and thread suturing device is shown in a partial cross-sectional structural schematic diagram in another state;

[0062] Fig.37 for Fig.32 A schematic diagram of the structure of the subject shown in;

[0063] Fig.38 A schematic structural diagram of a sixth embodiment of a double-ended needle and thread suturing device provided in some embodiments of the present application;

[0064] Fig.39 for Fig.38 A schematic diagram of the exploded structure of the double-ended needle and thread suturing device shown;

[0065] Fig.40 for Fig.38 A schematic side view of the double-ended needle and thread suturing device shown;

[0066] Fig.41 for Fig.40 A partial cross-sectional structural schematic diagram of a double-ended needle and thread suturing device;

[0067] Fig.42 for Fig.38 A partial cross-sectional structural schematic diagram of the double-ended needle and thread suturing device in another state;

[0068] Fig.43 for Fig.38 The double-ended needle and thread suturing device is shown in a partial cross-sectional structural schematic diagram in another state;

[0069] Fig.44 It is a schematic structural diagram of an embodiment of a 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 guide structure;

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

[0073] 30. Locking assembly; 31. Locking member; 311. Card slot; 32. First reset member;

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

[0075] 50. Locking control parts;

[0076] 60. Clamping control device; 61. Transmission assembly; 611. Transmission connecting rod; 6111. First connecting rod; 6112. Second connecting rod; 6113. First guide groove; 6114. Second guide 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 DESCRIPTION

[0079] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

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

[0081] The "embodiment" mentioned in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0082] The special word "exemplary" mentioned in this application means "used as an example, embodiment or illustrative". Any embodiment described as "exemplary" is not necessarily interpreted as being 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 this application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0084] In the description of the present application, the orientations or positional relationships indicated by technical terms such as "upper", "lower", "inside", "outside", "front", "back", "left", "right", "top", and "bottom" are orientations or positional relationships based on the working state of the present application. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0085] In the description of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0086] In the description of the present application, “plurality” means two or more (including two), unless otherwise clearly and specifically defined.

[0087] In the description of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. 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 exemplary descriptions 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 accompanying drawings. The technical features involved in the different implementation modes of the present application described below can be combined with each other as long as there is no conflict between them.

[0089] like Figures 1 to 44As shown, the double-ended needle and thread suturing device provided by the present application includes: a main body 10, two clamping seats 20, two locking assemblies 30, a suturing assembly 40, a locking control component 50 and a clamping control device 60.

[0090] The main body 10 is provided with a through hole 11 penetrating therethrough, 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] The two locking assemblies 30 are respectively disposed in the installation spaces 22 of the two clamping seats 20 , and the locking assemblies 30 have a locked state and an unlocked state.

[0093] The suturing assembly 40 includes a suturing needle 41 and a suturing thread 42. The suturing needle 41 includes a needle body 411. The needle body 411 has two oppositely disposed ends. Fig.10 and Fig.44 As shown, at least one end of the needle body 411 is provided with a puncture portion 412 , and both 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 assembly 30 .

[0094] The lock control member 50 is connected to the lock assembly 30 , and the lock control member 50 is configured to control the lock assembly 30 to switch between a locked state and an 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] The double-ended needle and thread suturing device provided by the present application has a suture needle 41 that is alternately locked on two clamping seats 20, so that the suture needle 41 carries the suture thread 42 through the human mucosal tissue, and the operation is repeated multiple times to make the suture needle 41 pass through the human mucosal tissue multiple times to achieve the purpose of suturing the human mucosal tissue. In the above-mentioned suturing process, it is only necessary to fix the two ends of the suture needle 41, and no complex fixed structure and driving structure are required, thereby reducing the complexity of the product, so as to improve the fault tolerance of the suture needle 41 during the suturing process, thereby reducing the operating difficulty of the product and making the product easier to use. In addition, the suture needle 41 does not have a complex motion trajectory, nor does it need to move in a complex channel, thereby improving the smoothness of the movement of the suture needle 41 during the suturing process, and also improving the fault tolerance of the suture needle 41, making the operation of the product simple and convenient.

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

[0098] In the first step, the two ends of the suture needle 41 are respectively connected to the locking components 30 on the two clamping seats 20. At this time, the two locking components 30 are in a locked state. Then the double-ended needle and thread suturing device is mounted on the front end of the endoscope 100, and then the double-ended needle and thread suturing device is introduced into the surgical operation site in the human body together with the endoscope 100.

[0099] In the second step, a locking assembly 30 is placed in an unlocked state through the locking control member 50, one end of the suture needle 41 is separated from the clamping seat 20, and then the distance between the two clamping seats 20 is increased through the clamping control device 60, and then the mucosal tissue to be punctured is clamped or anchored by an endoscopic instrument such as an existing endoscopic forceps, and pulled into the space between the two clamping seats 20. After that, the distance between the two clamping seats 20 is reduced by the clamping control device 60. During this process, the puncture portion 412 at one end of the suture needle 41 passes through the mucosal tissue to be punctured and is inserted into a locking assembly 30, and one locking assembly 30 is in a locked state.

[0100] In the third step, the other locking assembly 30 is in an unlocked state through the locking control member 50, and the other end of the suture needle 41 is separated from the other clamping seat 20, and then the distance between the two clamping seats 20 is increased through the clamping control device 60. In this process, the suture needle 41 as a whole passes through the mucosal tissue to be punctured with the suture thread. At this time, the position of the suture needle 41 is exchanged, that is, the suture needle 41 is changed from one clamping seat 20 to another clamping seat 20. Afterwards, the distance between the two clamping seats 20 is reduced through the clamping control device 60, so that the other end of the suture needle 41 is inserted into the other locking assembly 30, and the other locking assembly 30 is in a locked state, so as to complete the suturing of the mucosal tissue to be punctured. In addition, if the puncture portion 412 is provided at both ends of the suture needle 41, in the above process, the puncture portion 412 at the other end of the suture needle 41 also passes through the mucosal tissue to be punctured and is inserted into another locking component 30; if the puncture portion 412 is provided at one end of the suture needle 41 and the puncture portion 412 is not provided at the other end of the suture needle 41, in the above process, the other end of the suture needle 41 bypasses the mucosal tissue to be punctured and is inserted into another locking component 30.

[0101] like Figures 1 to 11 As shown, in one 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] A limiting passage 21 is provided on the clamping seat 20, and the end of the suture needle 41 passes through the limiting passage 21 and is inserted into the installation space 22. In one embodiment of the present application, the limiting passage 21 may be a through hole 11 or a groove, as long as the structure can ensure that the end of the suture needle 41 passes through. In another embodiment of the present application, a guiding bevel 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 bevel is the bevel of the puncture portion 412. If the end of the suture needle 41 is one end of the needle body 411, a guiding bevel is provided on one end of the needle body 411.

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

[0104] The locking member 31 is disposed in the installation space 22 and can slide relative to the clamping seat 20. The locking member 31 is provided with a snap-in groove 311 that matches the step 413. In the locked state, the snap-in groove 311 can snap-in with the step 413. Specifically, the step 413 on one side of the needle body 411 is snap-in with the snap-in groove 311, and the other side of the needle body 411 is against the channel wall of the limiting channel 21. The other side of the needle body 411 refers to: the side of the needle body 411 away from the side of the suture needle 41 that matches the snap-in groove 311. Specifically, the locking member 31 is fixed in the installation space 22 through the cover plate 70.

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

[0106] In the process of locking the suture needle 41 with the locking assembly 30, the suture needle 41 passes through the limiting channel 21 and is inserted into the locking assembly 30. The end of the suture needle 41 pushes the locking member 31 away, so that the locking member 31 moves relative to the clamping seat 20. At this time, the first reset member 32 accumulates force. After moving to the clamping position, the first reset member 32 releases the force, and the first reset member 32 moves the locking member 31, so that the step 413 is clamped into the clamping groove 311, so that the suture needle 41 is locked with the locking member 31, that is, the locking assembly 30 is in a locked state. When it is necessary to change the locking assembly 30 from the locked state to the unlocked state, the locking member 31 is controlled to move relative to the clamping seat 20 by the locking control member 50. At this time, the first reset member 32 accumulates force to separate the suture needle 41 from the locking assembly 30. After the external force applied to the locking control member 50 is removed, the first reset member 32 releases the force to reset the locking member 31. The locking assembly 30 has a simple structure. The locking control member 50 needs to be operated only when the locking assembly 30 is changed from a locked state to an unlocked state. Under the action of the first reset member 32, the normal state of the locking assembly 30 is in the locked state, that is, there is no need to reciprocate the locking control member 50 when the locking assembly 30 switches between the two states. The operation is convenient, thereby reducing the number of product operations and the operator's fatigue.

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

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

[0109] Several embodiments of the present application are described in detail below with reference to the accompanying drawings:

[0110] Embodiment 1

[0111] like Figures 1 to 8 As shown, the double-ended needle and thread suturing device provided by the present application includes: a main body 10, two clamping seats 20, two locking assemblies 30, a suturing assembly 40, a locking control component 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 disposed 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 portion 26 is connected to the other end of the rotating arm 25 , and an installation space 22 is provided on the clamping portion 26 .

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

[0116] The transmission assembly 61 is disposed on the main body 10 and is capable of moving relative to the main body 10 . The transmission assembly 61 is connected to the clamping seat 20 .

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

[0118] The transmission assembly 61 includes a transmission connecting rod 611 , one end of which is connected to the control member 62 , and the other end of which is connected to the clamping seat 20 .

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

[0120] The structure of the transmission connecting rod 611 is simple. On the one hand, it is easy to manufacture and reduce the manufacturing cost of the product. On the other hand, it is easy to assemble and connect with other components, thereby reducing the difficulty of product assembly, improving product production efficiency, and further reducing the manufacturing cost of the product. In addition, the transmission connecting rod 611 can withstand greater force and torque transmission, so that motion and power can be transmitted more accurately.

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

[0122] 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.

[0123] After the external force applied to the control member 62 is removed, the transmission assembly 61 is reset under the action of the second reset member 63, and the transmission assembly 61 resets with the clamping seat 20, thereby realizing the rapid and automatic reset of the product, reducing the need for human intervention and adjustment, saving operation time, and improving work efficiency. In addition, the second reset member 63 has a simple structure, does not require complex operations to achieve component reset, and is easy to use.

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

[0125] The sliding member 65 is disposed on the main body 10 and 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 an end of the transmission assembly 61 .

[0126] The sliding member 65 plays a guiding role, so that the transmission assembly 61 moves accurately along the predetermined track and direction, preventing deviation or deviation, helping to reduce shaking and errors during the movement, and improving the accuracy of the overall movement. In addition, the sliding member 65 can make the transmission assembly 61 smoother during the movement, avoid jamming or blocking, and improve the comfort of product use.

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

[0128] The sliding member 65 is disposed in the guide groove 12 and is slidable in the guide groove 12 .

[0129] Since the volume of the main body 10 is relatively large, setting the guide groove 12 on the main body 10 has little effect on the overall strength of the product, thereby ensuring the reliability of the product.

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

[0131] Embodiment 2

[0132] like Figures 12 to 17 As shown, the structure of the second embodiment is substantially the same as that of the first embodiment, and the specific difference is that the transmission assembly 61 includes 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 20, and the other end of the two connecting rods is connected to the control member 62. In one embodiment of the present application, the sliding member 65 is connected to the middle part of the transmission assembly 61.

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

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

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

[0136] After the external force applied to the control member 62 is removed, the clamping seat 20 is reset under the action of the third reset member 64, and the clamping seat 20 resets with the transmission assembly 61, thereby realizing the rapid automatic reset of the product, reducing the need for human intervention and adjustment, saving operation time, and improving work efficiency. In addition, the third reset member 64 has a simple structure, does not require complex operations to achieve component reset, and is easy to use.

[0137] Embodiment 3

[0138] like Figures 18 to 23 As shown, the structure of the third embodiment is substantially the same as that of the first embodiment, with the specific difference being 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 are crossed, and one end of the two cross links 6141 is connected to two clamping seats 20 respectively.

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

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

[0142] Embodiment 4

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

[0144] A first guide structure 27 is provided on the clamping seat 20, and a second guide structure 13 is provided on the main body 10. One of the first guide structure 27 and the second guide structure 13 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 20 slides in a straight line relative to the main body 10.

[0145] The clamping seat 20 can slide along a straight line relative to the main body 10 .

[0146] Two second guide structures 13 are disposed on the main body 10 , and a clamping seat 20 cooperates with a first guide structure 27 .

[0147] In the axial direction of the through hole 11 , two second guide structures 13 are stacked.

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

[0149] The transmission assembly 61 is disposed on the main body 10 and is capable of moving relative to the main body 10 . The transmission assembly 61 is connected to the clamping seat 20 .

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

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

[0152] The transmission connecting rod 611 includes a first connecting rod 6111 and a second connecting rod 6112 .

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

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

[0155] The second connecting rod 6112 is provided with a first guide groove 6113 , and the first guide groove 6113 extends along the length direction of the second connecting rod 6112 .

[0156] A first guide member 23 is provided on the clamping seat 20 . The first guide member 23 is disposed in the first guide groove 6113 and can slide in the first guide 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 of the product and making the space occupied by the product smaller, so that the double-ended needle and thread suture device can be smoothly inserted into or withdrawn from the human body, thereby improving the comfort of product use and reducing the probability of scratching the mucosal tissue during the process of the device entering and withdrawing from the human body's lumen.

[0158] In addition, the structure of the transmission connecting rod 611 is simple. On the one hand, it is easy to manufacture and reduce the manufacturing cost of the product. On the other hand, it is easy to assemble and connect with other components, thereby reducing the difficulty of product assembly, improving product production efficiency, and further reducing the manufacturing cost of the product. In addition, the transmission connecting rod 611 can withstand greater force and torque transmission, so that it can transmit motion and power more accurately.

[0159] like Figures 24 to 30As shown, in one embodiment of the present application, the clamping control device 60 further includes: a second restoring 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 the external force applied to the control member 62 is removed, the transmission assembly 61 is reset under the action of the second reset member 63, and the transmission assembly 61 resets with the clamping seat 20, thereby realizing the rapid and automatic reset of the product, reducing the need for human intervention and adjustment, saving operation time, and improving work efficiency. In addition, the second reset member 63 has a simple structure, does not require complex operations to achieve component reset, and is easy to use.

[0162] like Figures 24 to 30 As 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 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 an end of the transmission assembly 61 .

[0164] The sliding member 65 plays a guiding role, so that the transmission assembly 61 moves accurately along the predetermined track and direction, preventing deviation or deviation, helping to reduce shaking and errors during the movement, and improving the accuracy of the overall movement. In addition, the sliding member 65 can make the transmission assembly 61 smoother during the movement, avoid jamming or blocking, and improve the comfort of product use.

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

[0166] The sliding member 65 is disposed in the guide groove 12 and is slidable in the guide groove 12 .

[0167] Since the volume of the main body 10 is relatively large, setting the guide groove 12 on the main body 10 has little effect on the overall strength of the product, thereby ensuring the 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 with the guide rail is provided on the sliding member, and the guide rail can slide in the guide groove.

[0169] Embodiment 5

[0170] like Figure 31 to Figure 37 As shown, the structure of the fifth embodiment is substantially the same as that of the fourth embodiment, and the specific difference is that:

[0171] An installation space 22 is provided on the clamping seat 20 .

[0172] The transmission assembly 61 further includes a transmission rod 612 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 out of 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 disposed in the installation space 22 and is fixedly connected to the transmission rod 612 .

[0175] In the radial direction of the through hole 11 , two second guide 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 a whole, and the first connecting rod 6111 and the second connecting rod 6112 can realize synchronous rotation under the drive of the control member 62. The second connecting rod 6112 is arranged in the clamping seat 20 and connected to the clamping seat 20 to drive the clamping seat 20 to move. Since the driving force applied by the second connecting rod 6112 is applied at the middle position of the clamping seat 20, the force is balanced, which avoids the clamping seat 20 from getting stuck during the movement. At the same time, this makes the driving force more effectively transmitted to the clamping seat 20, ensuring the effectiveness of the device.

[0177] Embodiment 6

[0178] like Figures 38 to 43 As shown, the structure of the sixth embodiment is substantially the same as that of the fourth embodiment, and the specific difference is that:

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

[0180] The second connecting rod 6112 is provided with a second guide member 6114 . The second guide member 6114 is disposed in the second guide groove 24 and is capable of sliding in the second guide groove 24 .

[0181] The clamping seat 20 has a relatively large volume, and the second guide groove 24 is arranged on the clamping seat 20, which has a relatively small impact on the overall strength of the product, thereby ensuring the 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall 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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