Simple pulley block driven anastomosis nail releasing device and suturing device

Abstract

The invention discloses a simple pulley block driven anastomosis nail releasing device and a suturing device.The simple pulley block driven anastomosis nail releasing device comprises a main body, two clamping parts, a driving assembly and a reset piece; the driving assembly comprises a pulley and a control cable; through cooperation of the control cable and the pulley, force applied to the control cable by an operator directly acts on the clamping part so as to drive the clamping part to move relative to the main body, the force can be transmitted to the clamping part from the driving assembly more directly and efficiently, force attenuation caused by factors such as friction and gaps between parts is reduced, and the service life of the clamping part is prolonged. And the clamping part can respond more quickly, so that quick force adjustment and control are realized. Besides, the driving assembly only comprises the pulley and the control cable, on one hand, due to the fact that the number of the parts of the driving assembly is small, the complexity and the fault occurrence rate of products are reduced; and on the other hand, the layout of the product is more concise, the occupied space is small, and the maximum outer diameter of the product is smaller.

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 simple pulley block driven staple releasing device and suturing device. Background Art

[0002] At present, there are few existing technologies for flexible endoscopic stapler suturing instruments, and there are great technical challenges. Since the staples themselves need to have a certain length and the natural cavity of the human digestive tract is relatively small, it is necessary to first effectively solve the problem of the maximum outer diameter of this type of instrument. The size cannot be too large, otherwise it cannot be used for minimally invasive surgery in the natural cavity of the digestive tract. In addition, this type of instrument needs to have sufficient driving force to allow the staples to penetrate the gastrointestinal tissue, especially to penetrate thick tissue and adapt to application scenarios such as gastrointestinal wall folding. Summary of the invention

[0003] In the first aspect, an embodiment of the present application provides a simple pulley group driven staple releasing device, which includes: a main body, a through hole is provided on the main body, and the through hole is configured to cooperate with an endoscope; two clamping parts, the two clamping parts are symmetrically arranged on the main body, the two clamping parts are respectively a first clamping part and a second clamping part, the first clamping part can slide along a straight line relative to the main body, and a matching part is provided on the first clamping part, and the matching part is configured to install a staple; a driving component, the driving component includes a pulley and a control cable, the control cable cooperates with the pulley, and the driving component is configured so that the pulley and the control cable cooperate to drive the first clamping part to move relative to the main body; and a reset member, the reset member is connected to the first clamping part, and the reset member is configured to increase the distance gap between the two clamping parts so that the clamping parts return to their initial positions.

[0004] In some embodiments, the pulley includes a first pulley and a second pulley; the first pulley is rotatably mounted on the first clamping portion, and the second pulley is rotatably mounted on the main body and is arranged adjacent to the second clamping portion; one end of the control rope passes through the second pulley and the first pulley in sequence and is connected to the second clamping portion.

[0005] In some embodiments, a mounting groove is provided on the first clamping portion, and the first pulley is disposed in the mounting groove; in the radial direction of the first pulley, a gap between the first pulley and a groove wall of the mounting groove is smaller than a width of the control cable.

[0006] In some embodiments, the simple pulley assembly driven staple releasing device further comprises: a baffle, which is arranged on the main body and adjacent to the second pulley; in the radial direction of the second pulley, the gap between the second pulley and the plate surface of the baffle is smaller than the width of the control cable.

[0007] In some embodiments, the main body includes a base and a mounting seat, the mounting seat is detachably arranged on the base; the clamping portion is arranged on the base; and the second pulley is rotatably mounted on the mounting seat.

[0008] In some embodiments, the baffle is disposed on the mounting base.

[0009] In some embodiments, the number of the drive components is two, and the two drive components are symmetrically arranged.

[0010] In some embodiments, the pulley is rotatably mounted on the second clamping portion; one end of the control cable passes through the pulley and is connected to the first clamping portion.

[0011] In some embodiments, the reset member is a first elastic member, and the first elastic member is respectively connected to the two clamping parts.

[0012] In some embodiments, the first elastic member is a torsion spring, the two connecting arms of the torsion spring are respectively connected to the two clamping parts, and the torsion spring is fixed on the main body; at least one of the clamping parts is provided with a movable groove, the end of the connecting arm is inserted into the movable groove, and can slide in the movable groove.

[0013] In some embodiments, the reset member is a reset cable, and one end of the reset cable is connected to the clamping portion.

[0014] In some embodiments, a first guide structure is provided on the clamping portion, 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 portion slides in a straight line relative to the main body.

[0015] In some embodiments, two second guide structures are provided on the main body, the first guide structure is provided on both of the two clamping parts, and one clamping part cooperates with one second guide structure.

[0016] In some embodiments, in the axial direction of the through hole, two second guide structures are stacked; or in the radial direction of the through hole, two second guide structures are side by side.

[0017] In some embodiments, the first guiding structure is disposed on the first clamping portion, and the second clamping portion is fixedly connected to the main body.

[0018] In some embodiments, the first clamping portion is provided with a fixing hole penetrating the first clamping portion along a moving direction thereof, and a nail pushing member is provided on a hole wall of the fixing hole, and the nail pushing member is the matching portion.

[0019] In some embodiments, the pulley is disposed at a connection between the second clamping portion and the main body.

[0020] In some embodiments, an installation space is provided on the main body, and the pulley is provided in the installation space.

[0021] Compared with the prior art, the above technical solution has the following advantages:

[0022] Through the coordination of the control cable and the pulley, the force applied to the control cable by the operator directly acts on the clamping part to drive the clamping part to move relative to the main body. The force can be transmitted from the drive assembly to the clamping part more directly and efficiently, reducing the attenuation of force caused by factors such as friction and gap between components. When force is applied to the drive assembly, the clamping part can respond more quickly and move relative to the main body to achieve rapid force adjustment and control. In addition, the drive assembly only includes two components, the pulley and the control cable. On the one hand, since the drive assembly has fewer components, the complexity and failure rate of the product are reduced, and the reliability and stability of the system are improved, that is, the force transmission deviation caused by the cumulative errors of multiple components is reduced, so that the output force is more accurately in line with expectations, which is conducive to improving the control accuracy and work quality of the system. On the other hand, the layout of the product is more concise, the space occupied is small, and the maximum outer diameter of the product is smaller, so that it is suitable for more scenarios, especially narrow operating spaces.

[0023] In a second aspect, an embodiment of the present application provides a suturing device, comprising: the above-mentioned simple pulley group driven staple releasing device; and a staple, wherein the staple is arranged on a first clamping portion of the simple pulley group driven staple releasing device and cooperates with a matching portion on the first clamping portion, and the staple is located between the two clamping portions of the simple pulley group driven staple releasing device.

[0024] In some embodiments, the suturing device further includes: a nail box, part of which is located in the fixing hole of the first clamping part and can slide relative to the first clamping part, and the other part of which is located between the two clamping parts, a needle outlet is provided on the side wall of the nail box, the setting position of the nail pushing member of the staple releasing device driven by the simple pulley group corresponds to the position of the needle outlet, and the staples are arranged in the nail box; a second elastic member, which is supported between the nail box and the first clamping part; and a third elastic member, which is arranged in the nail box and supported between the bottom wall of the nail box and the staples.

[0025] In some embodiments, the suturing device further includes: a guide column, one end of which is connected to the nail box, the other end of which passes through the first clamping portion and is limited by the first clamping portion, the guide column can move relative to the first clamping portion, and the second elastic member is sleeved on the guide column.

[0026] Compared with the prior art, the above technical solution has the following advantages:

[0027] The suturing device can effectively improve the accuracy and reliability of suturing tissue to ensure that the staples effectively suturing the tissue, thereby ensuring effective treatment of the tissue; in addition, the suturing device has a simple structure, the product layout is more concise, and the structure of the driving component is simple, so that the maximum outer diameter of the suturing device is smaller, making it suitable for more application scenarios, especially for use in narrow operating spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 A schematic structural diagram of a first embodiment of a suturing device provided in some embodiments of the present application;

[0030] Figure 2 for Figure 1 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0031] Figure 3 for Figure 1 A schematic diagram of the exploded structure of the suturing device shown;

[0032] Figure 4 for Figure 1A schematic structural diagram of the suturing device shown in an open state;

[0033] Figure 5 for Figure 4 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0034] Figure 6 for Figure 1 The structural schematic diagram of the suturing device shown is in a suturing state;

[0035] Figure 7 for Figure 6 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0036] Figure 8 for Figure 2 A schematic diagram of a partial structure of a suturing device shown in;

[0037] Fig. 9 A schematic structural diagram of a second embodiment of a suturing device provided in some embodiments of the present application;

[0038] Fig.10 for Fig. 9 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0039] Fig.11 for Fig. 9 A schematic diagram of the exploded structure of the suturing device shown;

[0040] Fig.12 for Fig. 9 A schematic structural diagram of the suturing device shown in an open state;

[0041] Fig.13 for Fig.12 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0042] Fig.14 for Fig. 9 The structural schematic diagram of the suturing device shown is in a suturing state;

[0043] Fig.15 for Fig.14 A partial cross-sectional structural schematic diagram of the suturing device shown;

[0044] Fig.16 for Fig.10 A schematic diagram of a partial structure of a suturing device shown in;

[0045] Fig.17 A schematic structural diagram of a third embodiment of a suturing device provided in some embodiments of the present application;

[0046] Fig.18 for Fig.17 A schematic diagram of the partial cross-sectional structure of the suturing device shown.

[0047] The reference numerals are as follows:

[0048] 10. main body; 11. through hole; 12. base; 13. mounting seat; 14. second guide structure; 15. mounting space;

[0049] 20. Clamping portion; 21. First clamping portion; 22. Second clamping portion; 23. Matching portion; 24. Movable groove; 25. First guide structure; 26. Fixing hole; 27. Mounting groove;

[0050] 30. driving assembly; 31. pulley; 311. first pulley; 312. second pulley; 32. control cable;

[0051] 40. Reset parts;

[0052] 50. Baffle;

[0053] 60. Push nail piece;

[0054] 101. Simple pulley group driving staple releasing device; 102. Staples; 103. Staple box; 104. Second elastic member; 105. Third elastic member; 106. Guide column; 107. Endoscope. DETAILED DESCRIPTION

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] In the description of this application, the technical term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0061] 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.

[0062] In the description of the present application, “plurality” means two or more (including two), unless otherwise clearly and specifically defined.

[0063] In the description of the present application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0064] 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.

[0065] For ease of understanding, the following Figures 1 to 18 The suturing device shown describes the specific structure of the simple pulley group driving the staple releasing device.

[0066] like Figures 1 to 18 As shown, the simple pulley assembly driven staple releasing device 101 provided in the embodiment of the first aspect of the present application includes: a main body 10 , two clamping parts 20 , a driving assembly 30 and a resetting member 40 .

[0067] The main body 10 is provided with a through hole 11 , and the through hole 11 is configured to cooperate with the endoscope 107 .

[0068] Two clamping parts 20 are symmetrically arranged on the main body 10, and the two clamping parts 20 are respectively a first clamping part 21 and a second clamping part 22. The first clamping part 21 can slide along a straight line relative to the main body 10, and a matching part 23 is arranged on the first clamping part 21, and the matching part 23 is configured to install the staple 102. In a specific embodiment of the present application, a first guide structure 25 is arranged on the clamping part 20, and a second guide structure 14 is arranged on the main body 10. One of the first guide structure 25 and the second guide structure 14 is a slide groove 24, and the other is a slide rail. The slide rail can slide in the slide groove 24, so that the clamping part 20 slides along a straight line relative to the main body 10.

[0069] The driving assembly 30 includes a pulley 31 and a control cable 32 . The control cable 32 cooperates with the pulley 31 . The driving assembly 30 is configured such that the pulley 31 cooperates with the control cable 32 to drive the first clamping portion 21 to move relative to the main body 10 .

[0070] The reset member 40 is connected to the first clamping portion 21 , and is configured to increase the distance gap between the two clamping portions 20 so as to return the clamping portions 20 to an initial position.

[0071] The simple pulley assembly driven stapler releasing device 101 provided in the present application, through the cooperation between the control cable 32 and the pulley 31, enables the force applied to the control cable 32 by the operator to directly act on the clamping part 20, so as to drive the clamping part 20 to move relative to the main body 10. The force can be transmitted from the driving component 30 to the clamping part 20 more directly and efficiently, reducing the attenuation of force caused by factors such as friction and gap between components. When force is applied to the driving component 30, the clamping part 20 can respond more quickly and move relative to the main body 10, thereby realizing rapid force adjustment and control.

[0072] In addition, the drive assembly 30 only includes two components, a pulley 31 and a control cable 32. On the one hand, since the drive assembly 30 has fewer components, the complexity and failure rate of the product are reduced, and the reliability and stability of the system are improved. That is, the force transmission deviation caused by the cumulative errors of multiple components is reduced, so that the output force is more accurately in line with expectations, which is beneficial to improving the control accuracy and work quality of the system; on the other hand, the layout of the product is more concise, the space occupied is small, and the maximum outer diameter of the product is smaller, so that it is suitable for more scenarios, especially for use in narrow operating spaces.

[0073] like Figures 9 to 16As shown, in one embodiment of the present application, two second guide structures 14 are provided on the main body 10 , and first guide structures 25 are provided on both clamping portions 20 , and one clamping portion 20 cooperates with one second guide structure 14 .

[0074] The above structure enables the two clamping parts 20 (the first clamping part 21 and the second clamping part 22) to move relative to the main body 10. On the one hand, the two clamping parts 20 can achieve symmetrical clamping of human mucosal tissue, so that the clamping force can be more evenly distributed on the human mucosal tissue; on the other hand, the distance between the two clamping parts 20 can be larger, so as to accommodate more human tissue and penetrate thicker human tissue.

[0075] like Fig.16 As shown, in a specific embodiment of the present application, two second guide structures 14 are stacked in the axial direction of the through hole 11 .

[0076] The second guide structure 14 is disposed in such a manner that the second guide structure 14 mainly occupies the space of the main body 10 in the axial direction of the through hole 11 , thereby reducing the space of the main body 10 in the radial direction of the through hole 11 .

[0077] In another specific embodiment of the present application, two second guide structures are arranged side by side in the radial direction of the through hole.

[0078] The above-mentioned second guide structure is arranged in such a way that the second guide structure mainly occupies the space of the main body in the radial direction of the through hole, so as to reduce the space of the main body in the axial direction of the through hole.

[0079] The above two types of second guide structures 14 can be selected by those skilled in the art according to their needs.

[0080] like Figures 1 to 8 As shown, in one embodiment of the present application, a first guide structure 25 is provided on the first clamping portion 21, and the second clamping portion 22 is fixedly connected to the main body 10. That is, of the two clamping portions 20 (the first clamping portion 21 and the second clamping portion 22), one (the first clamping portion 21) moves relative to the main body 10, and the other (the second clamping portion 22) is fixedly connected to the main body 10. The above structure is relatively simple, reducing the number and complexity of mechanical parts, which can reduce the manufacturing and maintenance costs of the product, and at the same time can improve the reliability and stability of the clamping device composed of the two clamping portions 20.

[0081] like Figures 1 to 8As shown, in one embodiment of the present application, a fixing hole 26 is provided on the first clamping portion 21 and passes through the first clamping portion 21 along the moving direction thereof, and a staple pusher 60 is provided on the hole wall of the fixing hole 26, and the staple pusher 60 is the matching portion 23. In another embodiment of the present application, the matching portion 23 may be a snap-fitting groove, and the staple 102 is fixed to the first clamping portion 21 through the snap-fitting groove.

[0082] The staple pusher 60 can push the staple 102 out of the component on which the staple 102 is installed, or the staple pusher 60 pushes the staple 102 so that the staple 102 is pressed against the second clamping portion 22. Under the action of the first clamping portion 21 and the second clamping portion 22, the staple 102 is squeezed and deformed to suture the human mucosal tissue.

[0083] like Figures 1 to 18 As shown, in one embodiment of the present application, an installation space 15 is provided on the main body 10 , and the pulley 31 is disposed in the installation space 15 .

[0084] The above structure allows the space occupied by the pulley 31 to overlap with part of the main body 10, so as to improve the utilization rate of the installation space 15 on the main body 10, that is, to reasonably utilize the space on the main body 10, thereby reducing the volume of the product and enabling the product to adapt to smaller human cavities.

[0085] Several embodiments of the drive assembly 30 are described in detail below with reference to the accompanying drawings.

[0086] Embodiment 1

[0087] like Figures 1 to 16 As shown, in one embodiment of the present application, the pulley 31 includes a first pulley 311 and a second pulley 312 .

[0088] The first pulley 311 is rotatably mounted on the first clamping portion 21 , and the second pulley 312 is rotatably mounted on the main body 10 and disposed adjacent to the second clamping portion 22 .

[0089] One end of the control cable 32 passes through the second pulley 312 and the first pulley 311 in sequence and is connected to the second clamping portion 22 .

[0090] The first pulley 311 is equivalent to the movable pulley 31, and the second pulley 312 is equivalent to the fixed pulley 31. The control cable 32, the first pulley 311 and the second pulley 312 constitute the pulley 31 group transmission system. On the one hand, the movable pulley 31 makes the control cable 32 form multiple ropes to act on the first clamping part 21, which can greatly reduce the force required by the operator to drag the control cable 32, making the operation of dragging the control cable 32 to move the first clamping part 21, which originally requires a lot of force, much easier; on the other hand, the fixed pulley 31 and the movable pulley 31 jointly make the control cable 32 turn multiple times. When the installation space 15 on the main body 10 is limited, the drive assembly 30 can be reasonably arranged. At the same time, when the operating space is limited, the operator can apply force at a more appropriate position. In addition, the fixed pulley only changes the direction of the force, without additional energy loss, the tension at both ends of the cable is equal, and the input force is almost entirely used for the clamping part, so that the force of the cable applied can be more directly and efficiently transmitted to the clamping part.

[0091] The operation process of the above-mentioned driving assembly 30 is as follows:

[0092] like Figures 4 to 7 , Figures 12 to 15 As shown, the operator drags the control cable 32, and the control cable 32 moves relative to the main body 10. Since the control cable 32 is coiled on the first pulley 311 and the control cable 32 is connected to the second clamping part 22, the control cable 32 drives the first pulley 311 to move; since the first pulley 311 is arranged on the first clamping part 21, the first pulley 311 drives the first clamping part 21 to move relative to the main body 10 to clamp the human mucosal tissue.

[0093] like Figures 1 to 16 As shown, in one embodiment of the present application, a mounting groove 27 is provided on the first clamping portion 21 , and the first pulley 311 is disposed in the mounting groove 27 .

[0094] like Figures 1 to 16 As shown, in the radial direction of the first pulley 311 , the gap between the first pulley 311 and the groove wall of the mounting groove 27 is smaller than the width of the control cable 32 .

[0095] The first pulley 311 is arranged in the installation groove 27, that is, the first pulley 311 is arranged inside the first clamping portion 21, so that the space occupied by the first pulley 311 overlaps with the space occupied by the first clamping portion 21, so as to improve the utilization rate of the installation space 15 on the main body 10, that is, reasonably utilize the space on the main body 10, so as to make the volume of the product smaller, so that the product can adapt to a smaller human body cavity.

[0096] In addition, the limitation on the size of the gap between the first pulley 311 and the groove wall of the installation groove 27 reduces the probability of the control cable 32 escaping from between the first pulley 311 and the groove wall of the installation groove 27, that is, reduces the probability of the control cable 32 escaping from the first pulley 311, thereby ensuring the reliability of the use of the drive component 30.

[0097] like Figures 1 to 16 As shown, in one embodiment of the present application, the simple pulley assembly driven staple releasing device 101 further includes: a baffle 50 .

[0098] The baffle 50 is disposed on the main body 10 and is disposed adjacent to the second pulley 312 .

[0099] In the radial direction of the second pulley 312 , the gap between the second pulley 312 and the plate surface of the baffle 50 is smaller than the width of the control cable 32 .

[0100] The setting of the baffle 50 has a limiting effect on the control cable 32, reducing the probability of the control cable 32 escaping from the second pulley 312. In addition, the limitation on the size of the gap between the second pulley 312 and the board surface of the baffle 50 further reduces the probability of the control cable 32 escaping from between the second pulley 312 and the board surface of the baffle 50, that is, reduces the probability of the control cable 32 escaping from the second pulley 312, thereby ensuring the reliability of the use of the drive component 30.

[0101] like Figures 1 to 16 As shown, in one embodiment of the present application, the main body 10 includes a base 12 and a mounting seat 13 .

[0102] The mounting seat 13 is detachably arranged on the base 12. The mounting seat 13 is either welded to the base 12 or clamped to the base 12.

[0103] The clamping portion 20 is disposed on the base body 12 .

[0104] The second pulley 312 is rotatably mounted on the mounting seat 13. In a specific embodiment of the present application, the baffle 50 is disposed on the mounting seat 13.

[0105] like Figures 1 to 16 As shown, in one embodiment of the present application, the baffle 50 is disposed on the mounting seat 13 .

[0106] During the process of disassembling and assembling the mounting seat 13, the baffle 50 can be disassembled and assembled together with the mounting seat 13, thereby avoiding the situation where the baffle 50 blocks the mounting seat 13 and causes difficulty in disassembly and assembly, that is, facilitating the disassembly and assembly of the mounting seat 13 and improving the assembly efficiency of the product.

[0107] like Figures 1 to 16 As shown, in one embodiment of the present application, the number of the drive assemblies 30 is two, and the two drive assemblies 30 are symmetrically arranged.

[0108] The driving assembly 30 is symmetrically arranged, so that the first clamping portion 21 is evenly stressed, ensuring that the first clamping portion 21 moves more stably and smoothly relative to the main body 10 .

[0109] like Figures 1 to 16 As shown, in one embodiment of the present application, the pulley 31 is disposed at the connection between the second clamping portion 22 and the main body 10 .

[0110] The above structure allows the space occupied by the pulley 31 to overlap with the second clamping portion 22, thereby reducing the space occupied by the pulley 31, that is, rationally utilizing the space on the main body 10, thereby reducing the volume of the product and enabling the product to adapt to smaller human cavities.

[0111] Embodiment 2

[0112] like Fig.17 and Fig.18 As shown, in one embodiment of the present application, the pulley 31 is rotatably mounted on the main body 10 and is disposed adjacent to the second clamping portion 22 .

[0113] One end of the control cable 32 passes through the pulley 31 and is connected to the first clamping portion 21 .

[0114] The pulley 31 is equivalent to the fixed pulley 31, which makes the control rope 32 turn. When the installation space 15 on the main body 10 is limited, the drive component 30 can be reasonably arranged. At the same time, when the operating space is limited, the operator can apply force at a more appropriate position.

[0115] Several embodiments of the reset element 40 are described in detail below with reference to the accompanying drawings.

[0116] Embodiment 1

[0117] like Figures 1 to 16 As shown, in one embodiment of the present application, the reset member 40 is a first elastic member, and the first elastic member is respectively connected to the two clamping parts 20.

[0118] The clamping part 20 moves relative to the main body 10, and the clamping part 20 drives the first elastic member to store force; after the external force applied to the clamping part 20 is removed, the first elastic member releases the stored elastic force, thereby helping the clamping part 20 to return to the initial position, which ensures the reliability of the operation.

[0119] In one embodiment of the present application, the first elastic member is a torsion spring, two connecting arms of the torsion spring are respectively connected to the two clamping parts 20 , and the torsion spring is fixed on the main body 10 .

[0120] At least one of the clamping parts 20 is provided with a movable groove 24 , and the end of the connecting arm is inserted into the movable groove 24 and can slide in the movable groove 24 .

[0121] Since the torsion spring is fixed on the main body 10 , after the clamping portion 20 moves relative to the main body 10 , the movable groove 24 provides a moving space for the connecting arm of the torsion spring to ensure the normal use of the torsion spring.

[0122] Embodiment 2

[0123] like Fig.17 and Fig.18 As shown, in one embodiment of the present application, the reset member 40 is a reset cable, and one end of the reset cable is connected to the clamping portion 20 .

[0124] The control rope 32 is dragged to drive the clamping part 20 to move relative to the main body 10. During this process, the clamping part 20 drives the reset rope to move; conversely, when the clamping part 20 needs to be reset, the reset rope is dragged to drive the clamping part 20 to move relative to the main body 10 so that the clamping part 20 returns to the initial position; the above-mentioned reset member 40 has a simple structure and is easy to operate.

[0125] like Figures 1 to 18 As shown, the suturing device provided by the embodiment of the second aspect of the present application includes: a simple pulley group driving the staple releasing device 101 and the staple 102 .

[0126] The stapler 102 is disposed on the first clamping portion 21 of the stapler release device 101 driven by the simple pulley block and cooperates with the matching portion 23 on the first clamping portion 21 . The stapler 102 is located between the two clamping portions 20 of the stapler release device 101 driven by the simple pulley block.

[0127] The suturing device provided in the present application can effectively improve the accuracy and reliability of suturing tissues to ensure that the staples 102 effectively sew the tissues, thereby ensuring effective treatment of the tissues; in addition, the suturing device has a simple structure, a more concise product layout, and a lower product failure rate.

[0128] like Figures 1 to 18 As shown, in one embodiment of the present application, the suturing device further includes: a staple box 103 , a second elastic member 104 and a third elastic member 105 .

[0129] Part of the nail box 103 is located in the fixing hole 26 of the first clamping part 21 and can slide relative to the first clamping part 21. The other part of the nail box 103 is located between the two clamping parts 20. A needle outlet is provided on the side wall of the nail box 103. The setting position of the nail pushing member 60 of the simple pulley group driving the staple releasing device 101 corresponds to the position of the needle outlet, and the staples 102 are set in the nail box 103.

[0130] The second elastic member 104 is supported between the nail box 103 and the first clamping portion 21 .

[0131] The third elastic member 105 is disposed in the staple box 103 and supported between the bottom wall of the staple box 103 and the staples 102 .

[0132] The staples 102 are disposed in a needle box of a staple 102 release device. The staples 102 and the needle box constitute a suturing assembly. The suturing assembly is detachably mounted on the first clamping portion 21 of the staple 102 release device.

[0133] When the staples 102 in the needle box are used up, the needle box can be directly removed and replaced with a new suturing assembly, thereby achieving rapid replacement of the staples 102.

[0134] The operation process of the above-mentioned suturing device is:

[0135] like Figures 4 to 7 , Figures 12 to 15 As shown, during the suturing process, the driving assembly 30 controls the clamping portion 20 to move relative to the main body 10. When the needle box is pressed against the human mucosal tissue, the staple pusher 60 on the first clamping portion 21 presses on the staple 102 to push the staple 102 out of the needle box from the needle outlet. At the same time, the needle box moves in the fixing hole 26, and the second elastic member 104 accumulates force under the action of the staple box 103 and the first clamping portion 21, pushing out the staple 102 of the needle box through the human tissue and pressing against the second clamping portion 2 2, so that the staples 102 are deformed to sew the mucosal tissue of the human body; after the suturing is completed, the driving assembly 30 controls the clamping part 20 to move in the opposite direction relative to the main body 10, and the second elastic member 104 releases the elastic force to move the needle box relative to the first clamping part 21, so that the staple pushing member 60 withdraws from the needle box. After the staple pushing member 60 is completely withdrawn, under the action of the third elastic member 105, the next staple 102 enters the ejection position, corresponding to the staple pushing member 60, to prepare for the next ejection of the staple 102.

[0136] like Figures 1 to 18 As shown, in one embodiment of the present application, the suturing device further includes: a guide column 106.

[0137] One end of the guide post 106 is connected to the nail box 103 , and the other end of the guide post 106 passes through the first clamping portion 21 and is limited by the first clamping portion 21 . The guide post 106 can move relative to the first clamping portion 21 , and the second elastic member 104 is sleeved on the guide post 106 .

[0138] The guide column 106 limits the second elastic member 104, preventing the second elastic member 104 from bending or shifting during the process of storing and releasing force, thereby reducing the shaking and vibration of the second elastic member 104 during operation, making the second elastic member 104 move more smoothly, and improving the reliability of the second elastic member 104.

[0139] 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 simple pulley assembly driven stapler release device, characterized in that: The simple pulley assembly driven staple releasing device comprises: A main body, wherein the main body is provided with a through hole, and the through hole is configured to cooperate with an endoscope; Two clamping parts, the two clamping parts are symmetrically arranged on the main body, the two clamping parts are respectively a first clamping part and a second clamping part, the first clamping part can slide along a straight line relative to the main body, and a matching part is arranged on the first clamping part, and the matching part is configured to install anastomosis staples; a driving assembly, the driving assembly comprising a pulley and a control cable, the control cable cooperating with the pulley, the driving assembly being configured such that the pulley and the control cable cooperate to drive the first clamping portion to move relative to the main body; and A reset member is connected to the first clamping portion, and the reset member is configured to increase the distance gap between the two clamping portions so that the clamping portions return to an initial position.

2. The simple pulley assembly driven staple releasing device according to claim 1, characterized in that: The pulley includes a first pulley and a second pulley; The first pulley is rotatably mounted on the first clamping portion, and the second pulley is rotatably mounted on the main body and disposed adjacent to the second clamping portion; One end of the control cable passes through the second pulley and the first pulley in sequence and is connected to the second clamping portion.

3. The simple pulley assembly driven staple releasing device according to claim 2, characterized in that: The first clamping portion is provided with a mounting groove, and the first pulley is arranged in the mounting groove; In the radial direction of the first pulley, a gap between the first pulley and a groove wall of the installation groove is smaller than a width of the control cable.

4. The simple pulley assembly driven staple releasing device according to claim 2, characterized in that: The simple pulley assembly driven staple releasing device further comprises: a baffle, the baffle being disposed on the main body and adjacent to the second pulley; In the radial direction of the second pulley, a gap between the second pulley and a plate surface of the baffle is smaller than a width of the control cable.

5. The simple pulley assembly driven staple releasing device according to claim 4, characterized in that: The main body comprises a base and a mounting seat, and the mounting seat is detachably arranged on the base; The clamping portion is arranged on the base; The second pulley is rotatably mounted on the mounting seat.

6. The simple pulley assembly driven staple releasing device according to claim 5, characterized in that: The baffle is arranged on the mounting seat.

7. The simple pulley assembly driven staple releasing device according to claim 2, characterized in that: The number of the driving components is two, and the two driving components are symmetrically arranged.

8. The simple pulley assembly driven staple releasing device according to claim 1, characterized in that: The pulley is rotatably mounted on the second clamping portion; One end of the control cable passes through the pulley and is connected to the first clamping portion.

9. The simple pulley assembly driven staple releasing device according to any one of claims 1 to 8, characterized in that: The reset member is a first elastic member, and the first elastic member is connected to the two clamping parts respectively.

10. The simple pulley assembly driven staple releasing device according to claim 9, characterized in that: The first elastic member is a torsion spring, the two connecting arms of the torsion spring are respectively connected to the two clamping parts, and the torsion spring is fixed on the main body; At least one of the clamping parts is provided with a movable groove, and the end of the connecting arm is inserted into the movable groove and can slide in the movable groove.

11. The simple pulley assembly driven staple releasing device according to any one of claims 1 to 8, characterized in that: The reset member is a reset cable, and one end of the reset cable is connected to the clamping portion.

12. The simple pulley assembly driven staple releasing device according to any one of claims 1 to 8, characterized in that: The clamping portion 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 portion slides in a straight line relative to the main body.

13. The simple pulley assembly driven staple releasing device according to claim 12, characterized in that: Two second guide structures are arranged on the main body, the first guide structure is arranged on both of the two clamping parts, and one clamping part cooperates with one second guide structure.

14. The simple pulley assembly driven staple releasing device according to claim 13, characterized in that: 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.

15. The simple pulley assembly driven staple releasing device according to claim 12, characterized in that: The first guiding structure is arranged on the first clamping portion, and the second clamping portion is fixedly connected to the main body.

16. The simple pulley assembly driven staple releasing device according to any one of claims 1 to 8, characterized in that: The first clamping portion is provided with a fixing hole penetrating the first clamping portion along a moving direction thereof, and a nail pushing member is provided on a hole wall of the fixing hole, and the nail pushing member is the matching portion.

17. The simple pulley assembly driven staple releasing device according to any one of claims 2 to 8, characterized in that: The pulley is arranged at the connection between the second clamping portion and the main body.

18. The simple pulley assembly driven staple releasing device according to any one of claims 2 to 8, characterized in that: The main body is provided with an installation space, and the pulley is arranged in the installation space.

19. A suturing device, characterized in that: include: The simple pulley assembly driven staple releasing device according to any one of claims 1 to 18; as well as The stapler is arranged on the first clamping part of the stapler release device driven by the simple pulley block and matched with the matching part on the first clamping part. The stapler is located between the two clamping parts of the stapler release device driven by the simple pulley block.

20. The suturing device according to claim 19, characterized in that The suturing device further comprises: a nail box, part of which is located in the fixing hole of the first clamping part and can slide relative to the first clamping part, and the other part of which is located between the two clamping parts, a needle outlet is arranged on the side wall of the nail box, the setting position of the nail pushing member of the staple releasing device driven by the simple pulley block corresponds to the position of the needle outlet, and the staples are arranged in the nail box; a second elastic member, the second elastic member being supported between the nail box and the first clamping portion; and A third elastic member is disposed in the nail box and supported between the bottom wall of the nail box and the anastomosis staples.

21. The suturing device according to claim 20, characterized in that The suturing device also includes: a guide column, one end of which is connected to the nail box, the other end of which passes through the first clamping part and is limited by the first clamping part, the guide column can move relative to the first clamping part, and the second elastic member is sleeved on the guide column.

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