Connecting rod driven anastomosis nail releasing device and endoscopic suturing device

Abstract

The utility model discloses a connecting rod driven anastomosis nail releasing device and an endoscopic suturing device, and the connecting rod driven anastomosis nail releasing device comprises a main body, a movable seat, a driving device, a needle pushing piece, a transmission assembly and a control piece. The transmission assembly comprises a first connecting rod and a second connecting rod, and at least the first connecting rod is arranged on the outer surface of the movable seat. According to the anastomosis nail releasing device driven by the connecting rod, at least part of the transmission assembly is arranged on the outer surface of the movable base, enough space is provided to enable the length of the first connecting rod to be longer, and due to the fact that the transmission assembly is a power arm, operation is easier, and more labor is saved. Besides, a larger mounting space is formed in the movable seat to accommodate more anastomosis nails or anastomosis nails with larger volume or longer length, so that the mucous membrane tissue of a human body can be effectively treated; in addition, more anastomosis nails can be accommodated in the mounting space, so that the mounting times of the anastomosis nails can be reduced.

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 connecting rod driven stapler releasing device and an endoscopic suturing device. Background Art

[0002] In the related technology, the stapler release device and endoscopic suturing device technology (such as patents with application numbers 202420564362.2 and 202420652005.1) provide a solution for endoscopic minimally invasive surgery for gastrointestinal diseases, especially for minimally invasive fundoplication surgery for patients with gastroesophageal reflux and gastric volume reduction surgery for obese patients.

[0003] At present, the instruments of the prior art need to be used in conjunction with a flexible endoscope, in other words, they are used by being placed on the front end of the endoscope. There are some technical difficulties in the development of minimally invasive surgical instruments under flexible endoscopes. First, unlike surgical rigid endoscopes, the flexible endoscope is long and can be bent. This faces a problem, how to effectively transmit the driving force to effectively drive the bending and release of the staples; second, the instrument needs to enter the human body through the narrow natural cavity of the human body, which requires the maximum outer diameter of the instrument to be small. How to set up the various structures of the instrument in a limited space, while meeting certain size requirements of the specific structure, this contradiction needs to be resolved. For example, it is necessary to realize the folding of the gastrointestinal wall of the stapler, and the size of the stapler needs to be longer, otherwise, the stapler cannot penetrate the thick full-layer gastrointestinal wall, resulting in instrument failure. However, the maximum outer diameter of the instrument itself is limited, and this contradiction needs to be resolved. For previous technologies, these problems still exist. Utility Model Content

[0004] In the first aspect, an embodiment of the present application provides a connecting rod driven staple releasing device comprising: a main body, wherein the main body is provided with an extrusion seat and a through hole passing therethrough, wherein the through hole is configured to cooperate with an endoscope; a movable seat, wherein the movable seat is installed on the main body and can move relative to the main body, wherein the movable seat is provided with an installation space, wherein the installation space is configured to accommodate staples; a driving device, wherein the driving device is arranged on the main body and connected to the movable seat, wherein the driving device is configured to drive the movable seat to move relative to the main body; and a needle pushing member, wherein the needle pushing member is arranged on the movable seat and can move relative to the movable seat and be inserted into the installation space, wherein the needle pushing member is configured to push the staples out. Installation space; a transmission assembly, which is arranged on the movable seat and can rotate relative to the movable seat, the transmission assembly is connected to the push-pin member, and the transmission assembly is configured to drive the push-pin member to move relative to the movable seat; and a control member, the control member is connected to the transmission assembly, and the control member is configured to drive the transmission assembly to move relative to the movable seat; the transmission assembly includes: a first connecting rod, one end of the first connecting rod is connected to the control member; and a second connecting rod, one end of the second connecting rod is connected to the other end of the first connecting rod, and the other end of the second connecting rod is connected to the push-pin member; wherein, at least the first connecting rod is arranged on the outer surface of the movable seat.

[0005] In some embodiments, the transmission assembly also includes: a first transmission rod, which is rotatably connected to the movable seat, one end of the first transmission rod is inserted into the movable seat, and the other end of the transmission rod passes through the movable seat and protrudes out of the outer surface of the movable seat; the first connecting rod is fixedly connected to the other end of the first transmission rod; the second connecting rod is arranged in the movable seat and fixedly connected to the first transmission rod.

[0006] In some embodiments, the first connecting rod and the second connecting rod are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat and on one side of the movable seat; the second connecting rod is movably connected to the push-pin member.

[0007] In some embodiments, a first slide groove is provided on the second connecting rod; the transmission assembly also includes: a second transmission rod, one end of the second transmission rod passes through the movable seat and is fixedly connected to the push-pin member, the other end of the second transmission rod is connected to the second connecting rod and can slide in the first slide groove, and the second transmission rod can move relative to the movable seat.

[0008] In some embodiments, the second transmission rod is connected to the side surface of the push-pin member corresponding to the transmission member; a guide limit groove is provided on the movable seat, and the guide limit groove extends along the direction in which the push-pin member is inserted into the installation space. One end of the second transmission rod passes through the guide limit groove and is fixedly connected to the push-pin member, and the second transmission rod can slide in the guide limit groove.

[0009] In some embodiments, in the axial direction of the through hole, the movable seat includes a top surface and a bottom surface that are relatively arranged; the second transmission rod is connected to the surface on the push-pin member corresponding to the top surface or the side surface; the second transmission rod is located on the release side and can slide on the top surface.

[0010] In some embodiments, a notch is provided on the top surface, and part of the second transmission rod is located in the notch and can slide in the notch.

[0011] In some embodiments, the needle pusher includes a connecting body and a plate body, the connecting body is provided with a second slide groove, and the plate body is configured to push the staple out of the installation space; in the axial direction of the through hole, the movable seat includes a top surface and a bottom surface arranged opposite to each other; the transmission assembly also includes: a third transmission rod, the third transmission rod is located on the top surface and can slide on the top surface, one end of the third transmission rod is fixedly connected to the second connecting rod, and the other end of the third transmission rod is connected to the connecting body and can slide in the second slide groove.

[0012] In some embodiments, the length of the first connecting rod is greater than the length of the second connecting rod.

[0013] In some embodiments, guide rails are provided on two symmetrically arranged side walls of the installation space, and the guide rails are provided along the direction in which the push-pin member is inserted into the installation space; guide grooves are provided on two symmetrically arranged side walls of the push-pin member, and the guide rails are inserted into the guide grooves, and the guide rails can slide in the guide grooves.

[0014] In some embodiments, a limit member is disposed on the outer surface of the movable seat, and the limit member is disposed on a rotation path of the transmission assembly driving the push-pin member to exit the installation space, and the limit member can interfere with the first connecting rod.

[0015] In some embodiments, in the radial direction of the through hole, the extrusion seat is provided with an observation window penetrating therethrough.

[0016] In some embodiments, the movable 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 driving device; and an extrusion part, which is connected to the other end of the rotating arm, and the installation space is arranged on the extrusion part.

[0017] In some embodiments, a first guide structure is provided on the movable 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 groove, and the other is a slide rail. The slide rail can slide in the groove so that the movable seat slides in a straight line relative to the main body.

[0018] In some embodiments, the driving device includes: a driving member, which is arranged on the main body and can rotate relative to the main body, the driving member includes a first driving rod and a second driving rod connected in sequence, the first driving rod is tilted relative to the second driving rod, and the first driving rod is connected to the movable seat; and a control cable, which is connected to the second driving rod.

[0019] In some embodiments, a reset member is provided between the transmission assembly and the main body.

[0020] Compared with the prior art, the above technical solution has the following advantages:

[0021] At least part of the transmission assembly is arranged on the outer surface of the movable seat. On the one hand, the space inside the movable seat occupied by the transmission assembly is reduced, so that the movable seat has a larger installation space to accommodate more staples or staples with larger volume and / or longer length. Staples with larger volume and / or longer length can more effectively penetrate the human mucosal tissue and are also easy to bend and fix to the human mucosal tissue, thereby ensuring that the staples effectively sew the human mucosal tissue, thereby ensuring effective treatment of the human mucosal tissue; in addition, the installation space accommodates more staples, which can reduce the number of times the staples are installed, that is, avoid the frequent installation of staples, thereby performing a longer suturing operation, improving the use efficiency of the product, and increasing the market competitiveness of the product; on the other hand, the first connecting rod is arranged on the outer surface of the movable seat, avoiding the limitation of the size of the first connecting rod by the installation space, so that there is enough space to make the length of the first connecting rod longer. Since it is a power arm in the transmission assembly, the longer power arm can use less power to drive the movement of the needle pusher through the second connecting rod, making the operation easier and more labor-saving.

[0022] In the second aspect, an embodiment of the present application provides an endoscopic suturing device, comprising the above-mentioned connecting rod driven staple releasing device; and staples, wherein the staples are arranged in the installation space of the connecting rod driven staple releasing device, and the setting position of the needle pushing member of the connecting rod driven staple releasing device corresponds to the position of the staples.

[0023] In some embodiments, when the second connecting rod of the connecting rod driven staple releasing device is arranged inside the movable seat, an avoidance groove is arranged on one end of the staple adjacent to the second connecting rod, and the setting position of the avoidance groove corresponds to the position of the second connecting rod.

[0024] Compared with the prior art, the above technical solution has the following advantages:

[0025] The first connecting rod is longer in length. Since it is a power arm in the transmission assembly, the longer power arm can use less power to drive the needle pusher to move through the second connecting rod, making the operation easier and more labor-saving. In addition, the space inside the movable seat occupied by the transmission assembly is reduced, so that there is more internal space to accommodate staples that meet the size requirements of the staples and to accommodate multiple staples, thereby ensuring effective suturing of human mucosal tissue and improving the suturing efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 A schematic structural diagram of a first embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0029] Figure 3 for Figure 1 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0030] Figure 4 for Figure 1 The schematic diagram of the structure of the endoscopic suturing device shown is in another state;

[0031] Figure 5 for Figure 4 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0032] Figure 6 for Figure 1 The schematic diagram of the structure of the endoscopic suturing device shown is in another state;

[0033] Figure 7 for Figure 6 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0034] Figure 8a for Figure 1 A schematic diagram of a partial exploded structure of an endoscopic suturing device shown in;

[0035] Figure 8b for Figure 8a A schematic diagram of a local structure of the structure shown in;

[0036] Fig. 9 for Figure 1 A schematic diagram of the structure of the movable seat shown in;

[0037] Fig.10 for Figure 1 A schematic diagram of the structure of the subject shown in ;

[0038] Fig.11 A schematic diagram of the exploded structure of a second embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0039] Fig.12 A partial cross-sectional structural schematic diagram of a second embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0040] Fig.13 for Fig.11 A schematic diagram of the structure of the movable seat shown in;

[0041] Fig.14 for Fig.11 A schematic diagram of the partial structure of the endoscopic suturing device shown in;

[0042] Fig.15 A schematic structural diagram of a third embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0043] Fig.16 for Fig.15 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0044] Fig.17 for Fig.15 A partial cross-sectional structural schematic diagram of an endoscopic suturing device shown in;

[0045] Fig.18 for Fig.15 A partial cross-sectional structural schematic diagram of the endoscopic suturing device in another state is shown in FIG.

[0046] Fig.19 for Fig.15 A schematic diagram of the partial structure of the endoscopic suturing device shown in;

[0047] Fig. 20 A schematic diagram of the exploded structure of a fourth embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0048] Fig.21 A partial cross-sectional structural schematic diagram of a fourth embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0049] Fig. 22 A partial cross-sectional structural schematic diagram of a fourth embodiment of the endoscopic suturing device provided in some embodiments of the present application in another state;

[0050] Fig.23 for Fig. 20 A schematic diagram of the structure of the transmission assembly shown in;

[0051] Fig.24 for Fig. 20 The schematic diagram of the structure of the stapler shown in ;

[0052] Fig.25 A schematic structural diagram of a fifth embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0053] Fig.26 for Fig.25 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0054] Fig. 27 for Fig.25 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0055] Fig.28a for Fig.25 The schematic diagram of the partial cross-section structure of the endoscopic suturing device shown is in another state;

[0056] Fig.28b for Fig.25 The schematic diagram of the structure of the endoscopic suturing device shown is in another state;

[0057] Fig.28c for Fig.28b A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0058] Fig.29 A schematic structural diagram of a fifth embodiment of the endoscopic suturing device provided in some embodiments of the present application from another perspective;

[0059] Fig.30A schematic structural diagram of a sixth embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0060] Fig.31 for Fig.30 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0061] Fig.32 for Fig.30 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0062] Fig.33 A schematic structural diagram of a seventh embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0063] Fig.34 A structural schematic diagram of another perspective of the seventh embodiment of the endoscopic suturing device provided in some embodiments of the present application

[0064] Fig.35 for Fig.33 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0065] Fig.36 for Fig.33 A partial cross-sectional structural schematic diagram of an endoscopic suturing device is shown;

[0066] Fig.37 A schematic structural diagram of an eighth embodiment of an endoscopic suturing device provided in some embodiments of the present application;

[0067] Fig.38 for Fig.37 A schematic diagram of the exploded structure of the endoscopic suturing device shown;

[0068] Fig.39 for Fig.37 A schematic diagram of the partial cross-sectional structure of the endoscopic suturing device is shown.

[0069] The reference numerals are as follows:

[0070] 10. Main body; 11. Extrusion seat; 12. Through hole; 13. Observation window; 14. Second guide structure;

[0071] 20. movable seat; 21. installation space; 22. guide limit groove; 23. top surface; 24. bottom surface; 25. notch; 26. guide rail; 27. limiter; 28. rotating arm; 29. ​​extrusion part; 201. first guide structure;

[0072] 30. Driving device; 31. Driving member; 311. First driving rod; 312. Second driving rod; 32. Control cable;

[0073] 40. needle pusher; 41. connector; 42. plate; 43. second slide groove; 44. guide groove;

[0074] 50, transmission assembly; 51, first connecting rod; 52, second connecting rod; 521, first slide slot; 53, first transmission rod; 54, second transmission rod; 55, third transmission rod;

[0075] 60. Control parts;

[0076] 70. Reset parts;

[0077] 100. Connecting rod driven staple releasing device; 200. Staple; 210. Avoidance groove; 300. Needle box; 400. Elastic member; 500. Endoscope. DETAILED DESCRIPTION

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] In the description of the present application, “plurality” means two or more (including two), unless otherwise clearly and specifically defined.

[0086] 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.

[0087] 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.

[0088] For ease of understanding, the following Figures 1 to 39 The endoscopic suturing device shown describes the specific structure of the connecting rod driven staple releasing device.

[0089] like Figures 1 to 39 As shown, the connecting rod driven staple releasing device 100 provided in the embodiment of the first aspect of the present application includes: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0090] The main body 10 is provided with an extrusion seat 11 and a through hole 12 penetrating therethrough, and the through hole 12 is configured to cooperate with the endoscope 500 .

[0091] The movable seat 20 is installed on the main body 10 and can move relative to the main body 10 . An installation space 21 is provided on the movable seat 20 . The installation space 21 is configured to accommodate the staples 200 .

[0092] The driving device 30 is disposed on the main body 10 and connected to the movable seat 20 . The driving device 30 is configured to drive the movable seat 20 to move relative to the main body 10 .

[0093] The needle pusher 40 is disposed on the movable seat 20 and can be moved relative to the movable seat 20 to be inserted into the installation space 21. The needle pusher 40 is configured to push the staple 200 out of the installation space 21. In a specific embodiment of the present application, an elastic member 400 may also be disposed between the needle pusher 40 and the movable seat 20, and the elastic member 400 can push the needle pusher 40 out of the installation space 21.

[0094] The transmission assembly 50 is disposed on the movable seat 20 and can rotate relative to the movable seat 20 . The transmission assembly 50 is connected to the needle pusher 40 . The transmission assembly 50 is configured to drive the needle pusher 40 to move relative to the movable seat 20 .

[0095] The control member 60 is connected to the transmission assembly 50 , and the control member 60 is configured to drive the transmission assembly 50 to move relative to the movable seat 20 .

[0096] The transmission assembly 50 includes: a first connecting rod 51 and a second connecting rod 52. In some embodiments, the first connecting rod 51 and the second connecting rod 52 can be an integrated structure made by an integrated molding process.

[0097] One end of the first connecting rod 51 is connected to the control member 60 .

[0098] One end of the second connecting rod 52 is connected to the other end of the first connecting rod 51, and the other end of the second connecting rod 52 is connected to the push pin member 40. Specifically, the second connecting rod 52 and the push pin member 40 can be directly connected, or connected through other components, or the second connecting rod 52 and the push pin member 40 are in contact and connected. In a specific implementation embodiment of the present application, the first connecting rod 51 is tilted relative to the second connecting rod 52, and the angle between the first connecting rod 51 and the second connecting rod 52 is an acute angle.

[0099] At least the first connecting rod 51 is disposed on the outer surface of the movable seat 20 .

[0100] The connecting rod driven staple release device 100 provided in the present application has at least part of the transmission assembly 50 disposed on the outer surface of the movable seat 20. On the one hand, the space inside the movable seat 20 occupied by the transmission assembly 50 is reduced, so that the movable seat has a larger installation space inside to accommodate more staples or staples with larger volume / or longer length. Staples with larger volume / or longer length can more effectively penetrate the mucosal tissue of the human body and are also easy to bend and fix with the mucosal tissue of the human body, thereby ensuring that the staples effectively sew the mucosal tissue of the human body, thereby ensuring effective treatment of the mucosal tissue of the human body. In addition, the installation space accommodates more staples, which can reduce the number of times staples are installed, that is, avoid the occurrence of frequent installation of staples, thereby performing a longer suturing operation, improving the use efficiency of the product, and increasing the market competitiveness of the product. On the other hand, the first connecting rod is arranged on the outer surface of the movable seat, avoiding the limitation of the size of the first connecting rod by the installation space, so that there is enough space to make the length of the first connecting rod longer. Since it is a power arm in the transmission assembly, the longer power arm can use less power to drive the push-pin member to move through the second connecting rod, making the operation easier and more labor-saving.

[0101] The specific operation of the connecting rod driven staple releasing device 100 is as follows:

[0102] In the first step, the stapler 200 is installed in the installation space 21, the connecting rod driven stapler release device 100 is mounted on the front end of the endoscope 500, and then the connecting rod driven stapler release device 100 is introduced into the surgical operation site in the human body together with the endoscope 500.

[0103] In the second step, the movable seat 20 is moved away from the squeezing seat 11 by the driving device 30, so that the distance between the movable seat 20 and the squeezing seat 11 is increased, and then the mucosal tissue to be punctured is clamped or anchored by an endoscopic instrument such as an existing endoscopic forceps, and then pulled into the space between the movable seat 20 and the squeezing seat 11. After that, the movable seat 20 is moved toward the squeezing seat 11 by the driving device 30, so that the movable seat 20 and the squeezing part 29 squeeze and fix the mucosal tissue. If it is observed through the endoscope 500 that the clamping position of the mucosal tissue by the movable seat 20 and the squeezing part 29 is incorrect, the above operation can be repeated multiple times so that the squeezing seat 11 and the movable seat 20 can accurately and effectively fix the mucosal tissue.

[0104] In the third step, the control component 60 controls the transmission assembly 50 to move relative to the movable seat 20, and the transmission assembly 50 drives the push needle component 40 to move relative to the movable seat 20, so that the push needle component 40 pushes the staple 200 out of the installation space 21 and penetrates the mucosal tissue. The staple 200 is squeezed and deformed by the squeezing seat 11 to suture the mucosal tissue.

[0105] In the fourth step, the control member 60 controls the transmission assembly 50 to move in the opposite direction relative to the movable seat 20, and the transmission assembly 50 drives the needle pusher 40 to withdraw from the installation space 21 to free up space for installing the stapler 200, so as to prepare for the second puncture and suturing.

[0106] like Figure 2 As shown, in one embodiment of the present application, the length of the first connecting rod 51 is greater than the length of the second connecting rod 52 .

[0107] The structure of the transmission assembly 50 is similar to a lever structure, the first connecting rod 51 is equivalent to a power arm, and the second connecting rod 52 is equivalent to a resistance arm. When the power arm is larger than the resistance arm, applying a smaller power to the first connecting rod 51 can enable the second connecting rod 52 to output a larger force. On the one hand, the force used by the operator on the transmission assembly 50 is reduced, and the fatigue of the operator after long-term use is reduced. On the other hand, the needle pusher 40 can be subjected to a larger thrust to provide sufficient puncture force to the stapler 200, thereby ensuring the reliability of the stapler 200 in suturing the human mucosal tissue.

[0108] like Figure 8a and Figure 8b As shown, in one embodiment of the present application, guide rails 26 are provided on two symmetrically arranged side walls of the installation space 21 , and the guide rails 26 are provided along the direction in which the needle pusher 40 is inserted into the installation space 21 .

[0109] Guide grooves 44 are provided on two symmetrically arranged side walls of the needle pushing member 40 , and the guide rails 26 are inserted into the guide grooves 44 , and the guide rails 26 can slide in the guide grooves 44 .

[0110] The above structure can better limit the position of the needle pusher 40, thereby preventing the needle pusher 40 from getting stuck or shifting out of the movable seat 20 during movement, thereby ensuring the reliability of the needle pusher 40.

[0111] like Fig. 9 and Fig.29 As shown, in one embodiment of the present application, a limit member 27 is provided on the outer surface of the movable seat 20 , and the limit member 27 is provided on the rotation path of the transmission assembly 50 driving the push needle member 40 to exit the installation space 21 , and the limit member 27 can interfere with the first connecting rod 51 .

[0112] When the transmission assembly 50 drives the push-pin member 40 to exit the installation space 21, the setting of the limit member 27 limits the maximum rotation distance of the first connecting rod 51, thereby preventing the first connecting rod 51 from driving the second connecting rod 52 to disengage from the movable seat 20, that is, preventing the transmission assembly 50 from rotating too much and causing the push-pin member 40 to disengage from the movable seat 20, thereby ensuring the reliability of the product.

[0113] like Figure 2 , Fig.11 , Fig.16 , Fig. 20 , Fig.26 , Fig.31 Fig.35 ,and Fig.38 As shown, in one embodiment of the present application, in the radial direction of the through hole 12, an observation window 13 penetrating therethrough is provided on the extrusion seat 11.

[0114] The setting of the observation window 13 can increase the field of view of the endoscope 500, thereby facilitating the observation of the wound surface by the endoscope 500 during the process of suturing human mucosal tissue, so that the connecting rod-driven stapler release device 100 can suture the wound surface more accurately.

[0115] like Figure 8a , Fig.14 , Fig.19 and Fig. 20 As shown, in one embodiment of the present application, a reset member 70 is provided between the transmission assembly 50 and the main body 10 .

[0116] When the transmission assembly 50 moves in the positive direction relative to the movable seat 20, the reset member 70 stores force. When the transmission assembly 50 is controlled to move in the reverse direction relative to the movable seat 20, the reset member 70 releases the stored force, thereby helping the transmission assembly 50 to return to the initial position, which ensures the reliability of the operation.

[0117] Several embodiments of the connecting rod driven staple releasing device 100 are described in detail below with reference to the accompanying drawings.

[0118] Embodiment 1

[0119] like Figures 1 to 10 As shown, the connecting rod driven stapler releasing device 100 provided in the present application comprises: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0120] The movable seat 20 is provided with an installation space 21 , and guide rails 26 are provided on two symmetrically arranged side walls of the installation space 21 . The guide rails 26 are arranged along the direction in which the needle pusher 40 is inserted into the installation space 21 .

[0121] The two symmetrically arranged side walls of the push pin member 40 are provided with guide grooves 44, and the guide rails 26 are inserted into the guide grooves 44, and the guide rails 26 can slide in the guide grooves 44. The setting of the guide grooves 44 makes the push pin member as a whole present an "I" shape. On the one hand, after the two guide rails 26 cooperate with the two guide grooves 44, the guide rails 26 limit the push pin member 40 from four directions, thereby reducing the probability of the push pin member 40 shaking and causing jamming during the movement, that is, the slide of the push pin member 40 is smoother; on the other hand, the structure of the above-mentioned guide grooves 44 can reduce the use of materials and reduce the production and manufacturing cost of the product while ensuring that the push pin member 40 has a large thickness, and at the same time, the push pin member 40 has better mechanical properties and better mechanical strength, thereby extending the service life of the product.

[0122] In the axial direction of the through hole 12 , the movable seat 20 includes a top surface 23 and a bottom surface 24 that are oppositely disposed.

[0123] The movable seat 20 includes a rotating arm 28 and a pressing portion 29 . The rotating arm 28 is disposed on the main body 10 and can rotate relative to the main body 10 . One end of the rotating arm 28 is connected to the driving device 30 .

[0124] The pressing portion 29 is connected to the other end of the rotating arm 28 , and a mounting space 21 is provided on the pressing portion 29 .

[0125] The transmission assembly 50 includes a first connecting rod 51 , a second connecting rod 52 and a second transmission rod 54 .

[0126] One end of the first connecting rod 51 is connected to the control member 60 .

[0127] One end of the second connecting rod 52 is connected to the other end of the first connecting rod 51 , and the other end of the second connecting rod 52 is connected to the needle pushing member 40 .

[0128] The first connecting rod 51 and the second connecting rod 52 are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat 20 and on one side of the movable seat 20. In a specific implementation of the present application, the first connecting rod 51 and the second connecting rod 52 are an integrated structure made by an integrated molding process.

[0129] The second connecting rod 52 is movably connected to the needle pushing member 40 .

[0130] The second connecting rod is provided with a first sliding groove 521 .

[0131] One end of the second transmission rod 54 passes through the movable seat 20 and is fixedly connected to the push pin member 40 , and the other end of the second transmission rod 54 is connected to the second connecting rod 52 and can slide in the first sliding groove 521 . The second transmission rod 54 can move relative to the movable seat 20 .

[0132] The second transmission rod 54 is connected to a surface of the needle-pushing member 40 corresponding to the top surface 23 or the side surface.

[0133] The second transmission rod 54 is located on the top surface 23 and can slide on the top surface 23 .

[0134] The release device and the stapler 200 are combined to form an assembly. After the assembly is inserted into the human body, the mucosal tissue is pulled into the assembly. Then, the driving device 30 drives the movable seat 20 to rotate relative to the main body 10 to change the distance between the movable seat 20 and the pressing seat 11. In this process, the movable seat 20 and the pressing seat 11 jointly press the mucosal tissue. Then, the control member 60 controls the first connecting rod 51 to drive the second connecting rod 52 to rotate relative to the movable seat 20, and the second connecting rod 52 drives the needle pusher 40 to move relative to the movable seat 20, so that the needle pusher 40 pushes the stapler 200 out of the installation space 21 and penetrates the mucosal tissue. After the stapler 200 is squeezed and deformed by the pressing seat 11, the mucosal tissue is sutured.

[0135] During the above operation, the movable seat 20 rotates relative to the main body 10, that is, the movable seat 20 moves along the arc direction to cooperate with the extrusion seat 11 to clamp the human mucosal tissue. On the one hand, it can effectively improve the accuracy and safety of the subsequent puncture to ensure that the staples 200 effectively sew the mucosal tissue, thereby ensuring safe and effective treatment of the mucosal tissue. On the other hand, the above operation requires simple push and pull actions, without other complicated operation methods, which reduces the difficulty of product operation.

[0136] In addition, the second transmission rod 54 is located on the top surface 23, which reasonably utilizes the space in the length direction of the connecting rod driven staple releasing device 100, thereby reducing the width of the connecting rod driven staple releasing device 100 in the width direction, so that the connecting rod driven staple releasing device 100 is overall "slender" and the connecting rod driven staple releasing device 100 can be smoothly inserted into or withdrawn from the human body. At the same time, the second transmission rod 54 is located on the top surface 23, which facilitates the provision of guide grooves 44 on the two side walls of the needle pushing member 40 to meet the need for limiting and guiding the needle pushing member 40.

[0137] like Figure 3 , Figure 8a and Figure 8b As shown, in one embodiment of the present application, a notch 25 is provided on the top surface 23 , and a portion of the second transmission rod 54 is located in the notch 25 and can slide in the notch 25 .

[0138] The setting of the notch 25 allows the second transmission rod 54 to overlap more with the main body 10, avoiding the second transmission rod 54 protruding from the top surface of the main body 10, resulting in a longer product length in the direction from the bottom surface to the top surface, thereby reducing the space occupied by the second transmission rod 54 and making the overall volume of the product smaller.

[0139] Embodiment 2

[0140] like Figures 11 to 14 As shown, the structure of the second embodiment is substantially the same as that of the first embodiment, with the specific difference being that the second transmission rod 54 is connected to the side surface of the needle pusher 40 corresponding to the transmission member.

[0141] A guide limit groove 22 is provided on the movable seat 20, and the guide limit groove 22 extends along the direction in which the push-pin member 40 is inserted into the installation space 21. One end of the second transmission rod 54 passes through the guide limit groove 22 and is fixedly connected to the push-pin member 40, and the second transmission rod 54 can slide in the guide limit groove 22.

[0142] The transmission member of the above structure is located at one side of the main body 10, and the transmission member overlaps with the main body 10 in the width direction of the main body 10, so that the overall volume of the product is small. In addition, the above push pin member 40 has a relatively simple structure and is easy to produce.

[0143] Embodiment 3

[0144] like Figures 15 to 19 As shown, the connecting rod driven stapler releasing device 100 provided in the present application comprises: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0145] In the axial direction of the through hole 12 , the movable seat 20 includes a top surface 23 and a bottom surface 24 that are oppositely disposed.

[0146] The movable seat 20 includes a rotating arm 28 and a pressing portion 29 . The rotating arm 28 is disposed on the main body 10 and can rotate relative to the main body 10 . One end of the rotating arm 28 is connected to the driving device 30 .

[0147] The pressing portion 29 is connected to the other end of the rotating arm 28 , and a mounting space 21 is provided on the pressing portion 29 .

[0148] The transmission assembly 50 includes a first connecting rod 51 , a second connecting rod 52 and a third transmission rod 55 .

[0149] One end of the first connecting rod 51 is connected to the control member 60 .

[0150] The second connecting rod 52 is an integral structure with the first connecting rod 51. Specifically, one end of the second connecting rod 52 is connected to the other end of the first connecting rod 51, and the other end of the second connecting rod 52 is connected to the needle pusher 40.

[0151] The first connecting rod 51 and the second connecting rod 52 are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat 20 and on one side of the movable seat 20. In a specific implementation of the present application, the first connecting rod 51 and the second connecting rod 52 are an integrated structure made by an integrated molding process.

[0152] The second connecting rod 52 is movably connected to the needle pushing member 40 .

[0153] One end of the third transmission rod 55 is fixedly connected to the second connecting rod 52, and the other end of the third transmission rod 55 is connected to the connecting body 41 and can slide in the second slide groove 43. The needle pusher 40 includes a connecting body 41 and a plate body 42. The connecting body 41 is provided with a second slide groove 43. The plate body 42 is configured to push the stapler 200 out of the installation space 21. The third transmission rod 55 is located on the top surface 23 and can slide on the top surface 23.

[0154] The above structural features can also effectively drive the needle pusher 40 to move. The control member 60 drives the first connecting rod 51 and the second connecting rod 52 to rotate, thereby driving the third transmission rod 55 to move the needle pusher 40. Since the third transmission rod 55 has a large contact area with the second slide groove 43 of the needle pusher connector 41, the driving force is relatively evenly applied to the needle pusher 40, so that it can move effectively and avoid jamming.

[0155] In addition, the third transmission rod 55 is located on the top surface 23, which reasonably utilizes the space in the length direction of the connecting rod driven staple releasing device 100, thereby reducing the width of the connecting rod driven staple releasing device 100 in the width direction, so that the connecting rod driven staple releasing device 100 is overall "slender" in shape, thereby enabling the connecting rod driven staple releasing device 100 to be smoothly inserted into or withdrawn from the human body, thereby improving the comfort of the product.

[0156] Embodiment 4

[0157] like Figure 20 to Figure 23 As shown, the connecting rod driven stapler releasing device 100 provided in the present application comprises: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0158] The movable seat 20 includes a rotating arm 28 and a pressing portion 29 . The rotating arm 28 is disposed on the main body 10 and can rotate relative to the main body 10 . One end of the rotating arm 28 is connected to the driving device 30 .

[0159] The pressing portion 29 is connected to the other end of the rotating arm 28 , and a mounting space 21 is provided on the pressing portion 29 .

[0160] The transmission assembly 50 includes a first connecting rod 51 , a second connecting rod 52 and a first transmission rod 53 .

[0161] One end of the first connecting rod 51 is connected to the control member 60 .

[0162] One end of the second connecting rod 52 is connected to the other end of the first connecting rod 51 , and the other end of the second connecting rod 52 is connected to the needle pushing member 40 .

[0163] The first transmission rod 53 is rotatably connected to the movable seat 20 , one end of the first transmission rod 53 is inserted into the movable seat 20 , and the other end of the transmission rod passes through the movable seat 20 and protrudes out of the outer surface of the movable seat 20 .

[0164] The first connecting rod 51 is fixedly connected to the other end of the first transmission rod 53 .

[0165] The second connecting rod 52 is disposed in the movable seat 20 and is fixedly connected to the first transmission rod 53 .

[0166] After assembly, the first connecting rod 51, the first transmission rod 53 and the second connecting rod 52 are a whole, and the first connecting rod 51 and the second connecting rod 52 can realize synchronous rotation under the drive of the control member 60. The second connecting rod 52 is arranged in the movable seat 20 and connected with the needle pusher 40 to drive the needle pusher 40 to move. Since the driving force applied by the second connecting rod 52 is applied at the middle position of the needle pusher 40, the force is balanced, which avoids the occurrence of jamming of the needle pusher 40 during movement. At the same time, this makes the driving force more effectively transmitted to the needle pusher 40, ensuring the effectiveness of the device.

[0167] Embodiment 5

[0168] like Figure 25 to Figure 29 As shown, the connecting rod driven stapler releasing device 100 provided in the present application comprises: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0169] A first guide structure 201 is provided on the movable seat 20, and a second guide structure 14 is provided on the main body 10. One of the first guide structure 201 and the second guide structure 14 is a groove, and the other is a slide rail. The slide rail can slide in the groove so that the movable seat 20 slides in a straight line relative to the main body 10.

[0170] The driving device includes a driving member 31 and a control cable 32 .

[0171] The driving member 31 is arranged on the main body 10 and can rotate relative to the main body 10. The driving member 31 includes a first driving rod 311 and a second driving rod 312 connected in sequence. The first driving rod 311 is inclined relative to the second driving rod 312, and the first driving rod 311 is connected to the movable seat 20.

[0172] The control cable 32 is connected to the second driving rod 312 .

[0173] The movable seat 20 is provided with an installation space 21 , and guide rails 26 are provided on two symmetrically arranged side walls of the installation space 21 . The guide rails 26 are arranged along the direction in which the needle pusher 40 is inserted into the installation space 21 .

[0174] The two symmetrically arranged side walls of the push pin member 40 are provided with guide grooves 44, into which the guide rails 26 are inserted, and the guide rails 26 can slide in the guide grooves 44. The setting of the guide grooves 44 makes the push pin member as a whole present an "I" shape. The structure of the guide grooves 44 can reduce the use of materials and reduce the production cost of the product while ensuring that the push pin member 40 has a large thickness. At the same time, the push pin member 40 has better mechanical properties and better mechanical strength, thereby extending the service life of the product.

[0175] The transmission assembly 50 includes a first connecting rod 51 , a second connecting rod 52 and a second transmission rod 54 .

[0176] One end of the first connecting rod 51 is connected to the control member 60 .

[0177] One end of the second connecting rod 52 is connected to the other end of the first connecting rod 51 , and the other end of the second connecting rod 52 is connected to the needle pushing member 40 .

[0178] The first connecting rod 51 and the second connecting rod 52 are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat 20 and on one side of the movable seat 20. In a specific implementation of the present application, the first connecting rod 51 and the second connecting rod 52 are an integrated structure made by an integrated molding process.

[0179] The second connecting rod 52 is movably connected to the needle pushing member 40 .

[0180] The second connecting rod is provided with a first sliding groove 521 .

[0181] One end of the second transmission rod 54 passes through the movable seat 20 and is fixedly connected to the push pin member 40 , and the other end of the second transmission rod 54 is connected to the second connecting rod 52 and can slide in the first sliding groove 521 . The second transmission rod 54 can move relative to the movable seat 20 .

[0182] In the axial direction of the through hole 12 , the movable seat 20 includes a top surface 23 and a bottom surface 24 that are oppositely disposed.

[0183] The second transmission rod 54 is connected to a surface of the needle-pushing member 40 corresponding to the top surface 23 or the side surface.

[0184] The second transmission rod 54 is located on the top surface 23 and can slide on the top surface 23 .

[0185] The release device and the stapler 200 are combined to form an assembly. After the assembly is inserted into the human body, the mucosal tissue is pulled into the assembly. Then, the driving device 30 drives the movable seat 20 to move in a straight line relative to the main body 10 to change the distance between the movable seat 20 and the pressing seat 11. In this process, the movable seat 20 and the pressing seat 11 jointly press the mucosal tissue. Then, the control member 60 controls the first connecting rod 51 to drive the second connecting rod 52 to rotate relative to the movable seat 20, and the second connecting rod 52 drives the needle pusher 40 to move relative to the movable seat 20, so that the needle pusher 40 pushes the stapler 200 out of the installation space 21 and penetrates the mucosal tissue. After the stapler 200 is squeezed and deformed by the pressing seat 11, the mucosal tissue is sutured.

[0186] During the above operation, the movable seat 20 is in a straight line with the main body 10. On the one hand, it can effectively improve the accuracy and safety of the subsequent puncture to ensure that the stapler 200 effectively sews the mucosal tissue, thereby ensuring safe and effective treatment of the mucosal tissue. On the other hand, the above operation requires simple push and pull actions, without other complicated operation methods, which reduces the difficulty of product operation, thereby effectively providing the product's comfort. The above operation requires simple push and pull actions, without other complicated operation methods, which reduces the difficulty of product operation, thereby effectively providing the product's comfort.

[0187] In addition, the second transmission rod 54 is located on the top surface 23, which reasonably utilizes the space in the length direction of the connecting rod driven staple releasing device 100, thereby reducing the width of the connecting rod driven staple releasing device 100 in the width direction, so that the connecting rod driven staple releasing device 100 is overall "slender" and the connecting rod driven staple releasing device 100 can be smoothly inserted into or withdrawn from the human body. At the same time, the second transmission rod 54 is located on the top surface 23, which facilitates the provision of guide grooves 44 on the two side walls of the needle pushing member 40 to meet the need for limiting and guiding the needle pushing member 40.

[0188] like Figure 25 to Figure 27 , Fig.29 As shown, in one embodiment of the present application, a notch 25 is provided on the top surface 23 , and a portion of the second transmission rod 54 is located in the notch 25 and can slide in the notch 25 .

[0189] The setting of the notch 25 allows the second transmission rod 54 to overlap more with the main body 10, avoiding the second transmission rod 54 protruding from the top surface of the main body 10, resulting in a longer product length in the direction from the bottom surface to the top surface, thereby reducing the space occupied by the second transmission rod 54 and making the overall volume of the product smaller.

[0190] Embodiment 6

[0191] like Figure 30 to Figure 32 As shown, the sixth embodiment is substantially the same as the fifth embodiment, and the main difference is that the second transmission rod 54 is connected to the side surface of the needle pusher 40 corresponding to the transmission member.

[0192] A guide limit groove 22 is provided on the movable seat 20, and the guide limit groove 22 extends along the direction in which the push-pin member 40 is inserted into the installation space 21. One end of the second transmission rod 54 passes through the guide limit groove 22 and is fixedly connected to the push-pin member 40, and the second transmission rod 54 can slide in the guide limit groove 22.

[0193] The transmission member of the above structure is located at one side of the main body 10, and the transmission member overlaps with the main body 10 in the width direction of the main body 10, so that the overall volume of the product is small. In addition, the above push pin member 40 has a relatively simple structure and is easy to produce.

[0194] Embodiment 7

[0195] like Figure 33 to Figure 36 As shown, the connecting rod driven staple releasing device 100 provided in the embodiment of the present application includes: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0196] A first guide structure 201 is provided on the movable seat 20, and a second guide structure 14 is provided on the main body 10. One of the first guide structure 201 and the second guide structure 14 is a groove, and the other is a slide rail. The slide rail can slide in the groove so that the movable seat 20 slides in a straight line relative to the main body 10.

[0197] The transmission assembly 50 includes a first connecting rod 51 and a second connecting rod 52 .

[0198] One end of the first connecting rod 51 is connected to the control member 60 .

[0199] The second connecting rod 52 is an integral structure with the first connecting rod 51. Specifically, one end of the second connecting rod 52 is connected to the other end of the first connecting rod 51, and the other end of the second connecting rod 52 is connected to the needle pusher 40.

[0200] The first connecting rod 51 and the second connecting rod 52 are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat 20 and on one side of the movable seat 20. In a specific implementation of the present application, the first connecting rod 51 and the second connecting rod 52 are an integrated structure made by an integrated molding process.

[0201] The second connecting rod 52 is movably connected to the needle pushing member 40 .

[0202] The needle pushing member 40 includes a connecting body 41 and a plate body 42 . The connecting body 41 is provided with a second sliding groove 43 . The plate body 42 is configured to push the staples 200 out of the installation space 21 .

[0203] In the axial direction of the through hole 12 , the movable seat 20 includes a top surface 23 and a bottom surface 24 that are oppositely disposed.

[0204] The transmission assembly 50 also includes: a third transmission rod 55, which is located on the top surface 23 and can slide on the top surface 23, one end of the third transmission rod 55 is fixedly connected to the second connecting rod 52, and the other end of the third transmission rod 55 is connected to the connecting body 41 and can slide in the second sliding groove 43.

[0205] The above structural features can also effectively drive the needle pusher 40 to move. The control member 60 drives the first connecting rod 51 and the second connecting rod 52 to rotate, thereby driving the third transmission rod 55 to move the needle pusher 40. Since the third transmission rod 55 has a large contact area with the second slide groove 43 of the needle pusher connector 41, the driving force is relatively evenly applied to the needle pusher 40, so that it can move effectively and avoid jamming.

[0206] In addition, the third transmission rod 55 is located on the top surface 23, which reasonably utilizes the space in the length direction of the connecting rod driven staple releasing device 100, thereby reducing the width of the connecting rod driven staple releasing device 100 in the width direction, so that the connecting rod driven staple releasing device 100 is overall "slender" in shape, thereby enabling the connecting rod driven staple releasing device 100 to be smoothly inserted into or withdrawn from the human body, thereby improving the comfort of the product.

[0207] Embodiment 8

[0208] like Figure 37 to Figure 38 As shown, the connecting rod driven staple releasing device 100 provided in the embodiment of the present application includes: a main body 10 , a movable seat 20 , a driving device 30 , a needle pushing member 40 , a transmission assembly 50 and a control member 60 .

[0209] A first guide structure 201 is provided on the movable seat 20, and a second guide structure 14 is provided on the main body 10. One of the first guide structure 201 and the second guide structure 14 is a groove, and the other is a slide rail. The slide rail can slide in the groove so that the movable seat 20 slides in a straight line relative to the main body 10.

[0210] The transmission assembly 50 includes a first connecting rod 51, one end of which is connected to the control member 60.

[0211] The second connecting rod 52 has one end connected to the other end of the first connecting rod 51 , and the other end of the second connecting rod 52 is connected to the needle pushing member 40 .

[0212] The transmission assembly 50 also includes: a first transmission rod 53, which is rotatably connected to the movable seat 20, with one end of the first transmission rod 53 inserted into the movable seat 20, and the other end of the transmission rod passes through the movable seat 20 and protrudes from the outer surface of the movable seat 20.

[0213] The first connecting rod 51 is fixedly connected to the other end of the first transmission rod 53 .

[0214] The second connecting rod 52 is disposed in the movable seat 20 and is fixedly connected to the first transmission rod 53 .

[0215] After assembly, the first connecting rod 51, the first transmission rod 53 and the second connecting rod 52 are a whole, and the first connecting rod 51 and the second connecting rod 52 can realize synchronous rotation under the drive of the control member 60. The second connecting rod 52 is arranged in the movable seat 20 and connected with the needle pusher 40 to drive the needle pusher 40 to move. Since the driving force applied by the second connecting rod 52 is applied at the middle position of the needle pusher 40, the force is balanced, which avoids the occurrence of jamming of the needle pusher 40 during movement. At the same time, this makes the driving force more effectively transmitted to the needle pusher 40, ensuring the effectiveness of the device.

[0216] The endoscopic suturing device provided in the embodiment of the second aspect of the present application includes: the above-mentioned connecting rod driven staple releasing device 100 and the staple 200.

[0217] The staples 200 are disposed in the installation space 21 of the connecting rod driven staple releasing device 100 , and the setting position of the needle pusher 40 of the connecting rod driven staple releasing device 100 corresponds to the position of the staples 200 , so that the staples 200 can be squeezed and deformed.

[0218] The endoscopic suturing device provided in the present application is smaller in size, so that the connecting rod-driven stapler release device 100 can be smoothly inserted into or withdrawn from the human body, thereby improving the comfort of the product and reducing the probability of scratching the mucosal tissue during the device entering and withdrawing from the human body's lumen.

[0219] Before the endoscopic suturing device enters the human body, the needle pusher 40 is overlapped with the staple 200, so that the transmission device is completely hidden in the matching space, making the overall volume of the product smaller and improving the comfort of the product. When the staple 200 needs to be pushed out of the installation space 21, the needle pusher 40 is controlled to move relative to the rotating seat. After the needle pusher 40 and the staple 200 are completely staggered, the staple 200 is pushed and moved by the elastic member 400, so that the needle pusher 40 and the staple 200 are coplanar, and then, when the reverse operation is performed, the needle pusher 40 pushes the staple 200 out of the installation space 21.

[0220] In some embodiments of the present application, there are multiple staples 200, and multiple staples 200 are stacked to form a staple group.

[0221] The endoscopic suturing device further includes: a needle box 300 and an elastic member 400 .

[0222] The needle box 300 is arranged in the installation space 21. The needle box 300 has an open accommodating cavity at one end. The group of staples 200 is arranged in the accommodating cavity. The staples 200 farthest from the bottom wall of the accommodating cavity among the multiple staples 200 correspond to the needle pusher 40. The bottom wall of the accommodating cavity refers to: the cavity wall arranged opposite to the opening of the accommodating cavity.

[0223] The elastic member 400 is supported between the staple group 200 and the bottom wall.

[0224] The operation process of pushing a staple 200 out of the needle box 300 is basically the same as the third step. After a staple 200 is sutured on the mucosal tissue, the distance between the extrusion seat 11 and the rotating seat becomes larger, and then the operating control member 60 controls the needle pusher 40 to withdraw from the needle box 300 through the transmission device. After the needle pusher 40 completely withdraws from the needle box 300, the accommodating space for the staple 200 is vacated, and the next staple 200 moves up under the action of the elastic member 400 and is coplanar with the needle pusher 40. After that, the distance between the extrusion seat 11 and the rotating seat is controlled to become smaller. The operating control member 60 controls the needle pusher 40 through the transmission device to push the staple 200 out of the installation space 21 and suture it on the mucosal tissue. And so on, the staples 200 are gradually released. The above structure can realize the continuous suturing of the mucosal tissue, reduce the number of times the staples 200 are installed, and thus improve the use efficiency of the product.

[0225] like Fig. 20 , Fig.21 and Fig.24As shown, in one embodiment of the present application, when the second connecting rod 52 of the connecting rod driven staple releasing device 100 is arranged in the installation space 21, an avoidance groove 210 is arranged on one end of the staple 200 adjacent to the second connecting rod 52, and the setting position of the avoidance groove 210 corresponds to the position of the second connecting rod 52.

[0226] The setting of the avoidance groove 210 avoids interference with the stapler 200 during the movement of the second connecting rod 52, that is, the stapler 200 does not hinder the required movement stroke of the second connecting rod 52, thereby ensuring the smooth movement of the transmission assembly 50 and improving the comfort of product use.

[0227] It should be noted that in addition to the driving device mentioned in this technology that drives the movable seat to move relative to the main body, the driving device that can drive the movable seat to move relative to the main body in the related stapler release device and endoscopic suturing device technology (such as patents with application numbers 202311816472.X and 202323577768.9) is also suitable for this technology, which will not be described one by one here.

[0228] 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 connecting rod driven stapler release device, characterized in that: The connecting rod driven stapler releasing device comprises: A main body, wherein the main body is provided with an extrusion seat and a through hole passing therethrough, wherein the through hole is configured to cooperate with an endoscope; A movable seat, which is mounted on the main body and can move relative to the main body, and a mounting space is provided on the movable seat, and the mounting space is configured to accommodate staples; a driving device, the driving device being arranged on the main body and connected to the movable seat, the driving device being configured to drive the movable seat to move relative to the main body; A needle pusher, which is disposed on the movable seat and can be moved relative to the movable seat and inserted into the installation space, and is configured to push the staples out of the installation space; a transmission assembly, the transmission assembly being disposed on the movable seat and being rotatable relative to the movable seat, the transmission assembly being connected to the needle pusher, and the transmission assembly being configured to drive the needle pusher to move relative to the movable seat; and a control member, the control member being connected to the transmission assembly and configured to drive the transmission assembly to move relative to the movable seat; The transmission assembly 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 needle pusher; Wherein, at least the first connecting rod is arranged on the outer surface of the movable seat.

2. The connecting rod driven staple releasing device according to claim 1, characterized in that: The transmission assembly further includes: a first transmission rod, the first transmission rod is rotatably connected to the movable seat, one end of the first transmission rod is inserted into the movable seat, and the other end of the transmission rod passes through the movable seat and protrudes from the outer surface of the movable seat; The first connecting rod is fixedly connected to the other end of the first transmission rod; The second connecting rod is arranged in the movable seat and is fixedly connected to the first transmission rod.

3. The connecting rod driven staple releasing device according to claim 1, characterized in that: The first connecting rod and the second connecting rod are connected in sequence to form a transmission member, and the transmission member is located on the outer surface of the movable seat and on one side of the movable seat; The second connecting rod is movably connected to the needle pushing member.

4. The connecting rod driven stapler releasing device according to claim 3, characterized in that: The second connecting rod is provided with a first sliding groove; The transmission assembly also includes: a second transmission rod, one end of which passes through the movable seat and is fixedly connected to the push-pin member, the other end of the second transmission rod is connected to the second connecting rod and can slide in the first sliding groove, and the second transmission rod can move relative to the movable seat.

5. The connecting rod driven staple releasing device according to claim 4, characterized in that: The second transmission rod is connected to the side surface of the push-pin member corresponding to the transmission member; The movable seat is provided with a guide limit groove, which extends along the direction in which the push-pin member is inserted into the installation space. One end of the second transmission rod passes through the guide limit groove and is fixedly connected to the push-pin member. The second transmission rod can slide in the guide limit groove.

6. The connecting rod driven staple releasing device according to claim 4, characterized in that: In the axial direction of the through hole, the movable seat includes a top surface and a bottom surface that are arranged oppositely; The second transmission rod is connected to a surface of the needle pusher corresponding to the top surface or the side surface; The second transmission rod is located on the top surface and can slide on the top surface.

7. The connecting rod driven staple releasing device according to claim 6, characterized in that: A notch is arranged on the top surface, and part of the second transmission rod is located in the notch and can slide in the notch.

8. The connecting rod driven staple releasing device according to claim 3, characterized in that: The needle pusher comprises a connecting body and a plate body, the connecting body is provided with a second slide groove, and the plate body is configured to push the staples out of the installation space; In the axial direction of the through hole, the movable seat includes a top surface and a bottom surface that are arranged oppositely; The transmission assembly also includes: a third transmission rod, which is located on the top surface and can slide on the top surface, one end of the third transmission rod is fixedly connected to the second connecting rod, and the other end of the third transmission rod is connected to the connecting body and can slide in the second sliding groove.

9. The connecting rod driven staple releasing device according to claim 1, characterized in that: The length of the first connecting rod is greater than the length of the second connecting rod.

10. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: Guide rails are arranged on two symmetrically arranged side walls of the installation space, and the guide rails are arranged along the direction in which the push-pin member is inserted into the installation space; The two side walls of the needle pusher are symmetrically provided with guide grooves, the guide rails are inserted into the guide grooves, and the guide rails can slide in the guide grooves.

11. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: A limiting member is disposed on the outer surface of the movable seat. The limiting member is disposed on a rotation path on which the transmission assembly drives the push-pin member to exit the installation space. The limiting member can interfere with the first connecting rod.

12. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: In the radial direction of the through hole, the extrusion seat is provided with an observation window penetrating therethrough.

13. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: The movable 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 driving device; and An extrusion portion is connected to the other end of the rotating arm, and the installation space is provided on the extrusion portion.

14. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: The movable 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 groove, and the other is a slide rail. The slide rail can slide in the groove so that the movable seat slides in a straight line relative to the main body.

15. The connecting rod driven staple releasing device according to claim 14, characterized in that: The driving device comprises: a driving member, the driving member is arranged on the main body and can rotate relative to the main body, the driving member comprises a first driving rod and a second driving rod connected in sequence, the first driving rod is tilted relative to the second driving rod, and the first driving rod is connected to the movable seat; and A control cable is connected to the second driving rod.

16. The connecting rod driven staple releasing device according to any one of claims 1 to 9, characterized in that: A reset member is arranged between the transmission assembly and the main body.

17. An endoscopic suturing device, characterized in that: include: The connecting rod driven staple releasing device according to any one of claims 1 to 16; as well as The staples are arranged in the installation space of the connecting rod driven staple releasing device, and the setting position of the needle pushing member of the connecting rod driven staple releasing device corresponds to the position of the staples, and the staples can be squeezed and deformed.

18. The endoscopic suturing device according to claim 17, characterized in that: When the second connecting rod of the connecting rod driven stapler releasing device is arranged in the installation space, An avoidance groove is arranged on one end of the stapler adjacent to the second connecting rod, and the arrangement position of the avoidance groove corresponds to the position of the second connecting rod.

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