Pulley type anastomosis nail releasing device and stitching instrument

Abstract

The utility model discloses a pulley type anastomosis nail releasing device and a stitching instrument, and the pulley type anastomosis nail releasing device comprises a main body, a movable seat, a control assembly, a nail pushing plate, a first reset part and a driving assembly. 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 nail pushing plate so as to drive the nail pushing plate to move relative to the movable seat, the force can be transmitted to the nail pushing plate 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 nail pushing plate is prolonged. And the nail pushing plate 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 pulley-type anastomosis staple releasing device and a stapler. Background Art

[0002] For flexible endoscopic stapler suturing instruments, in order to effectively penetrate the digestive tract tissue, especially the full-thickness gastrointestinal wall, the staples need to reach a certain length. However, the flexible endoscope itself is small in size and the natural lumen space of the digestive tract is limited. This contradiction makes this type of instrument very technically difficult. Therefore, it is crucial to find a driving structure with a simple structure that does not occupy too much instrument size space. At the same time, sufficient driving force is required to drive the staples to penetrate the tissue and bend them to achieve the effect of suturing the tissue. Utility Model Content

[0003] In a first aspect, an embodiment of the present application provides a pulley-type staple releasing device, comprising: a main body, wherein the main body is provided with an extrusion seat and a through hole extending therethrough, wherein the through hole is configured to cooperate with an endoscope; a movable seat, wherein the movable seat is mounted on the main body and is movable relative to the main body, wherein the setting position of the movable seat corresponds to the position of the extrusion seat, and a gap is provided between the movable seat and the extrusion seat, wherein the movable seat is provided with a mounting portion, wherein the mounting portion is configured to assemble staples; and a control assembly, wherein the control assembly is disposed on the main body and connected to the movable seat. The control component is configured to drive the movable seat to move relative to the main body; a nail pushing plate, which is arranged on the movable seat and can move relative to the movable seat, and the nail pushing plate is configured so that its pushing end abuts against the anastomosis staple to push the anastomosis staple onto the extrusion seat; a first reset member, which is respectively connected to the nail pushing plate and the movable seat; and a driving component, which includes a pulley and a control cable, and the control cable cooperates with the pulley, and the driving component is configured to drag the control cable to drive the nail pushing plate to move relative to the movable seat.

[0004] In some embodiments, the pulley includes a fixed pulley and a movable pulley, the fixed pulley is rotatably mounted on the movable seat, and the movable pulley is rotatably mounted on the pin pushing plate; one end of the control rope passes through the fixed pulley and the movable pulley and is connected to the movable seat.

[0005] In some embodiments, one of the fixed pulleys and one of the movable pulleys constitutes a pulley group, and the number of the pulley groups is multiple; one end of the control cable passes through the multiple pulley groups and is connected to the movable seat.

[0006] In some embodiments, the pulley is a fixed pulley, and a plurality of the fixed pulleys are rotatably mounted on the movable seat; one end of the control rope is connected with the pusher plate after passing through the plurality of fixed pulleys.

[0007] In some embodiments, the mounting portion is a connecting structure configured to mount the anastomosis needle.

[0008] In some embodiments, the pulley-type anastomosis needle releasing device further comprises a needle box detachably mounted on the mounting portion, the needle box being configured to mount the anastomosis needle; and an elastic member arranged in a receiving cavity of the needle box and located on a cavity wall of the receiving cavity away from the pusher plate, the elastic member being configured to support the anastomosis needle.

[0009] In some embodiments, the mounting portion is a receiving cavity formed by part of the movable seat for assembling the anastomosis needle; the pulley-type anastomosis needle releasing device further comprises an elastic member arranged in the receiving cavity and located on a cavity wall of the receiving cavity away from the pusher plate, the elastic member being configured to support the anastomosis needle.

[0010] In some embodiments, a connecting arm is arranged on the main body, the movable seat is connected with the connecting arm and can rotate relative to the main body, and the push-out end of the pusher plate faces the main body; the control assembly comprises a first control member connected with the movable seat, the first control member being configured to control the rotation of the movable seat relative to the main body so that the push-out end of the pusher plate faces the extrusion seat.

[0011] In some embodiments, the pulley-type anastomosis needle releasing device further comprises a second reset member connected with the movable seat and the main body, respectively.

[0012] In some embodiments, a limiting member is arranged on the movable seat, the limiting member is arranged at a position corresponding to the position of the connecting arm, and the limiting member is configured to interfere with the connecting arm when the movable seat rotates by a preset angle.

[0013] In some embodiments, two limiting members are arranged on the movable seat; one limiting member interferes with the connecting arm when the movable seat rotates by a preset angle in a first direction; the other limiting member interferes with the connecting arm when the movable seat rotates by a preset angle in a second direction; and the first direction is opposite to the second direction.

[0014] 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 slide groove, and the other is a slide rail. The slide rail can slide in the slide groove so that the movable seat slides in a straight line relative to the main body.

[0015] In some embodiments, a first transmission tooth is provided on the movable seat; the control component includes: a rotating transmission member, which is provided on the main body and can rotate relative to the main body, and a second transmission tooth is provided on the rotating transmission member to cooperate with the first transmission tooth, and the rotating transmission member is configured to drive the movable seat to move relative to the main body; and a second control member, which is connected to the rotating transmission member and is configured to control the rotation of the rotating transmission member relative to the main body.

[0016] In some embodiments, the control assembly includes: a transmission rod, which is arranged on the main body and can rotate relative to the main body, one end of the transmission rod is connected to the movable seat, and the transmission rod is configured to drive the movable seat to move relative to the main body; and a third control member, which is connected to the other end of the transmission rod, and the third control member is configured to control the rotation of the transmission rod relative to the main body.

[0017] Compared with the existing technology, the above technical solution has the following advantages:

[0018] Through the coordination of the control cable and the pulley, the force applied by the operator to the control cable directly acts on the push nail plate to drive the push nail plate to move relative to the movable seat. The force can be transmitted from the drive assembly to the push nail plate 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 push nail plate can respond more quickly and move relative to the movable seat 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. On the other hand, the product layout is simpler, the space occupied is small, and the maximum outer diameter of the product is smaller, making it suitable for more scenarios, especially for use in narrow operating spaces.

[0019] In a second aspect, an embodiment of the present application provides a stapler comprising: the above-mentioned pulley-type staple releasing device; and staples, wherein the staples are assembled on a mounting portion of the pulley-type staple releasing device.

[0020] In some embodiments, the number of the staples is one or more, the staples are arranged in a staple box of the pulley-type staple releasing device, the staples and the staple box constitute a suturing assembly, and the suturing assembly is detachably mounted on a movable seat of the pulley-type staple releasing device.

[0021] Compared with the existing technology, the above technical solution has the following advantages:

[0022] The stapler can effectively improve the accuracy and reliability of suturing tissues to ensure that the staples effectively sew the tissues, thereby ensuring effective treatment of the tissues; in addition, the stapler has a simple structure, a more concise product layout, and a lower product failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative work.

[0024] Figure 1 A schematic structural diagram of a first embodiment of a pulley-type staple releasing device provided in some embodiments of the present application;

[0025] Figure 2 for Figure 1 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0026] Figure 3 for Figure 1 A schematic diagram of the exploded structure of the pulley-type staple releasing device shown;

[0027] Figure 4 for Figure 1 The structure diagram of the pulley type staple releasing device is shown in the open state;

[0028] Figure 5 for Figure 4 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0029] Figure 6 for Figure 1 The structure diagram of the pulley type anastomotic staple releasing device is in the suturing state;

[0030] Figure 7 for Figure 6 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0031] Figure 8A schematic structural diagram of a second embodiment of a pulley-type staple releasing device provided in some embodiments of the present application;

[0032] Figure 9 for Figure 8 A schematic diagram of the exploded structure of the pulley-type staple releasing device shown;

[0033] Figure 10 for Figure 8 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0034] Figure 11 for Figure 8 A partial cross-sectional structural diagram of the pulley-type staple releasing device in an open state;

[0035] Figure 12 for Figure 8 The schematic diagram of the partial cross-section structure of the pulley-type anastomotic staple releasing device in the suturing state is shown;

[0036] Figure 13 A schematic structural diagram of a third embodiment of a pulley-type staple releasing device provided in some embodiments of the present application;

[0037] Figure 14 for Figure 13 A schematic diagram of the exploded structure of the pulley-type staple releasing device shown;

[0038] Figure 15 for Figure 13 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0039] Figure 16 for Figure 13 A partial cross-sectional structural diagram of the pulley-type staple releasing device in an open state;

[0040] Figure 17 for Figure 13 The schematic diagram of the partial cross-section structure of the pulley-type anastomotic staple releasing device in the suturing state is shown;

[0041] Figure 18 A schematic structural diagram of a fourth embodiment of a pulley-type staple releasing device provided in some embodiments of the present application;

[0042] Figure 19 for Figure 18 A schematic diagram of the exploded structure of the pulley-type staple releasing device shown;

[0043] Figure 20 for Figure 18 A partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device is shown;

[0044] Figure 21 forFigure 18 A partial cross-sectional structural diagram of the pulley-type staple releasing device in an open state;

[0045] Figure 22 for Figure 18 The diagram shown is a partial cross-sectional structural diagram of the pulley-type anastomotic staple releasing device in a suturing state.

[0046] The reference numerals are as follows:

[0047] 10. Main body; 11. Extrusion seat; 12. Through hole; 13. Connecting arm; 14. Second guide structure;

[0048] 20. Movable seat; 21. Mounting portion; 22. Position limiting member; 23. First guide structure; 24. First transmission tooth;

[0049] 30. Control assembly; 31. First control member; 32. Second reset member; 33. Rotary transmission member; 331. Second transmission tooth; 34. Second control member; 35. Transmission rod; 36. Third control member;

[0050] 40. Push nail board;

[0051] 50. First reset member;

[0052] 60. Drive assembly; 61. Pulley; 611. Fixed pulley; 612. Movable pulley; 62. Control cable;

[0053] 71. Nail box; 72. Elastic member;

[0054] 101. Pulley-type staple releasing device; 102. Staples; 103. Endoscope. DETAILED DESCRIPTION

[0055] The present application will be further described in detail below through the accompanying drawings and examples, through which the features and advantages of the present application will become more clear and distinct.

[0056] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as 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 phrase "embodiment" mentioned in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0058] The term "exemplary" is used herein to mean "serving as an example, embodiment, or illustration." Any embodiment described as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[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, unless otherwise specified or limited, technical terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0061] In the description of the present application, “a plurality of” means two or more (including two), unless otherwise clearly and specifically defined.

[0062] The technical solutions of the embodiments of the present application are described in detail below with reference to 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.

[0063] For ease of understanding, the following Figures 1 to 22 The illustrated stapler illustrates the specific structure of the pulley-type staple releasing device.

[0064] like Figures 1 to 22 As shown, the pulley-type staple releasing device 101 provided by the embodiment of the first aspect of the present application includes: a main body 10 , a movable seat 20 , a control assembly 30 , a staple pushing plate 40 , a first restoring member 50 and a driving assembly 60 .

[0065] The main body 10 is provided with an extrusion seat 11 and a through hole 12 passing therethrough, and the through hole 12 is configured to cooperate with the endoscope 103 .

[0066] The movable seat 20 is installed on the main body 10 and can move relative to the main body 10. The setting position of the movable seat 20 corresponds to the position of the extrusion seat 11, and there is a gap between the movable seat 20 and the extrusion seat 11. The movable seat 20 is provided with a mounting portion 21, and the mounting portion 21 is configured to assemble the anastomosis staples 102.

[0067] The control assembly 30 is disposed on the main body 10 and connected to the movable seat 20 . The control assembly 30 is configured to drive the movable seat 20 to move relative to the main body 10 .

[0068] The nail pushing plate 40 is disposed on the movable seat 20 and is movable relative to the movable seat 20 . The nail pushing plate 40 is configured such that its pushing end abuts against the anastomotic staples 102 to push the anastomotic staples 102 onto the extrusion seat 11 .

[0069] The first restoring member 50 is connected to the nail pushing plate 40 and the movable seat 20 respectively.

[0070] The driving assembly 60 includes a pulley 61 and a control cable 62 . The control cable 62 cooperates with the pulley 61 . The driving assembly 60 is configured to drag the control cable 62 to drive the pin pushing plate 40 to move relative to the movable seat 20 .

[0071] The pulley-type staple releasing device 101 provided in the present application, through the cooperation between the control cable 62 and the pulley 61, enables the force applied by the operator to the control cable 62 to directly act on the staple pushing plate 40, so as to drive the staple pushing plate 40 to move relative to the movable seat 20. The force can be transmitted from the driving component 60 to the staple pushing plate 40 more directly and efficiently, reducing the attenuation of force caused by factors such as friction and gaps between components. When force is applied to the driving component 60, the staple pushing plate 40 can respond more quickly and move relative to the movable seat 20, thereby realizing rapid force adjustment and control.

[0072] Furthermore, the drive assembly 60 consists of only two components: a pulley 61 and a control cable 62. This reduced component count reduces product complexity and the likelihood of failure, improving system reliability and stability. Furthermore, it streamlines the product's layout, occupies less space, and reduces its maximum outer diameter, making it suitable for a wider range of applications, particularly those in confined spaces.

[0073] Several embodiments of the driving assembly 60 are described in detail below with reference to the accompanying drawings.

[0074] Example 1

[0075] like Figures 1 to 17As shown, the pulley 61 includes a fixed pulley 611 and a movable pulley 612 . The fixed pulley 611 is rotatably mounted on the movable seat 20 , and the movable pulley 612 is rotatably mounted on the pin pushing plate 40 .

[0076] One end of the control cable 62 passes through the fixed pulley 611 and the movable pulley 612 and is connected to the movable seat 20 .

[0077] The control cable 62, movable pulley 612, and fixed pulley 611 constitute a pulley assembly transmission system. On the one hand, the movable pulley 612 forms multiple sections of the control cable 62 that act together on the pin pusher plate 40, significantly reducing the force required by the operator to pull the control cable 62. This makes the operation of moving the pin pusher plate 40, which previously required considerable effort, much easier. On the other hand, the fixed pulley 611 and movable pulley 612 work together to redirect the control cable 62 multiple times. This allows for the optimal placement of the drive assembly 60 when installation space on the movable seat 20 is limited. Furthermore, in situations where operating space is limited, the operator can apply force at a more appropriate location.

[0078] like Figures 1 to 17 As shown, in one embodiment of the present application, a fixed pulley 611 and a movable pulley 612 form a pulley group, and the number of the pulley groups is multiple.

[0079] One end of the control cable 62 passes through a plurality of pulley blocks and is connected to the movable seat 20 .

[0080] The combination of multiple pulleys can further disperse the required pulling force, further reducing the force required by the operator to pull the control cable 62, greatly reducing the operating intensity of the product. At the same time, it can also enable the staple pusher plate 40 to quickly fix the staples 102 to the human tissue, thereby increasing the suturing speed of the staples 102 and improving the suturing efficiency of the product.

[0081] Example 2

[0082] like Figures 18 to 22 As shown, the pulley 61 is a fixed pulley 611 , and there are multiple fixed pulleys 611 , which are rotatably mounted on the movable seat 20 .

[0083] One end of the control cable 62 passes through a plurality of fixed pulleys 611 and is connected to the nail pushing plate 40 .

[0084] The fixed pulley 611 turns the control rope 62, and when the installation space on the movable seat 20 is limited, the drive assembly 60 can be reasonably arranged. At the same time, when the operating space is limited, the operator can apply force at a more appropriate position.

[0085] Several embodiments of the mounting portion 21 are described in detail below.

[0086] Example 1

[0087] like Figures 1 to 7 As shown, the mounting portion 21 is a receiving cavity formed by a portion of the movable seat 20 for assembling the anastomosis staple 102 .

[0088] The pulley-type staple releasing device 101 further includes an elastic member 72 .

[0089] The elastic member 72 is disposed in the accommodating cavity and is located on a cavity wall of the accommodating cavity away from the staple pushing plate 40 . The elastic member 72 is configured to support the anastomotic staples 102 .

[0090] The accommodating cavity is integrated with the movable seat 20, eliminating the complex connection mechanism between the mounting portion 21 and the movable seat 20, making the overall structure more compact and simpler, reducing the complexity of the product, and making it less likely for the product to become loose or deformed during use, thereby extending its service life and improving its stability and durability.

[0091] Example 2

[0092] like Figures 8 to 22 As shown, the pulley-type staple releasing device 101 further includes a staple box 71 and an elastic member 72 .

[0093] The staple cartridge 71 is detachably mounted on the mounting portion 21 and is configured to mount staples 102. The mounting portion 21 is a connection structure connected to the staple cartridge 71 and may be a slot or a bayonet, etc. A plurality of staples 102 may be mounted in the staple cartridge 71.

[0094] The elastic member 72 is disposed in the accommodating cavity of the staple cartridge 71 and is located on a cavity wall of the accommodating cavity away from the staple pushing plate 40 . The elastic member 72 is configured to support the anastomosis staples 102 .

[0095] The human tissue is positioned between the movable seat 20 and the extrusion seat 11. The control drive assembly 60 drives the push plate 40 forward to push the staples 102 out of the needle cartridge until a staple 102 is sutured onto the human tissue. The control drive assembly 60 then drives the push plate 40 backward, and the next staple 102, under the action of the elastic member 72, moves up to the front of the push plate 40. Thereafter, the control drive assembly 60 drives the push plate 40 forward to push the next staple 102 out of the needle cartridge until a staple 102 is sutured onto the human tissue. This process continues, gradually releasing staples 102. The above structure enables continuous suturing of human tissue, reduces the number of times staples 102 are installed, and thus improves the efficiency of the product.

[0096] Several embodiments of the movable seat 20 will be described in detail below with reference to the accompanying drawings.

[0097] Example 1

[0098] likeFigures 1 to 7 As shown, a connecting arm 13 is provided on the main body 10 , the movable seat 20 is connected to the connecting arm 13 and can rotate relative to the main body 10 , and the pushing end of the nail pushing plate 40 faces the main body 10 .

[0099] The control assembly 30 includes a first control component 31 .

[0100] The first control member 31 is connected to the movable seat 20 . The first control member 31 is configured to control the movable seat 20 to rotate relative to the main body 10 so that the pushing end of the nail pushing plate 40 faces the pressing seat 11 .

[0101] The above structure enables the staples to be installed on the movable seat and arranged along the axial direction of the through hole, and the staples will not increase the radial size of the product. On the one hand, the product can be installed with larger staples, and larger staples can pass through thicker human tissue. Even if the accommodating cavity can accommodate staples of various sizes, the applicability of the product is increased, and the product can be used in more surgical scenarios; on the other hand, it can make it easier for the product to enter the human cavity. After the product reaches the surgical position, the movable seat is rotated relative to the main body by the first control member, so that the pushing end of the staple pusher plate faces the extrusion seat to sew the human tissue.

[0102] like Figures 1 to 7 As shown, in one embodiment of the present application, the pulley-type staple releasing device 101 further includes: a second restoring member 32 .

[0103] The second restoring member 32 is connected to the movable seat 20 and the main body 10 respectively.

[0104] When the movable seat 20 rotates relative to the main body 10, the movable seat 20 drives the second reset member 32 to store force. After the external force applied to the movable seat 20 is removed, the second reset member 32 releases the stored elastic force, thereby helping the movable seat 20 to return to the initial position, which ensures the reliability of operation.

[0105] like Figures 1 to 7 As shown, in one embodiment of the present application, a limit member 22 is provided on the movable seat 20, and the setting position of the limit member 22 corresponds to the position of the connecting arm 13. The limit member 22 is configured so that it (the limit member 22) interferes with the connecting arm 13 when the movable seat 20 rotates a preset angle.

[0106] like Figures 1 to 7 As shown, in a further embodiment of the present application, two limiting members 22 are provided on the movable seat 20 .

[0107] After the movable base 20 rotates along the first direction by a preset angle, a limiting member 22 interferes with the connecting arm 13 .

[0108] After the movable seat 20 rotates by a preset angle along the second direction, the other limiting member 22 interferes with the connecting arm 13 .

[0109] The first direction is opposite to the second direction.

[0110] The limiter 22 clearly defines the rotation range (rotation angle) of the movable seat 20, ensuring that the movable seat 20 will not exceed the predetermined angle or position, thereby avoiding the situation where the movable seat 20 cannot continue to work due to excessive rotation of the movable seat 20, and ensuring the normal operation and safety of the entire product.

[0111] Example 2

[0112] like Figures 8 to 22 As shown, a first guide structure 23 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 23 and the second guide structure 14 is a slide groove, and the other is a slide rail. The slide rail can slide in the slide groove so that the movable seat 20 slides in a straight line relative to the main body 10.

[0113] The pulley-type staple release device 101 and the staples 102 are combined to form an assembly. After the assembly is inserted into the human body, the human tissue is pulled into the assembly. The control assembly 30 then drives the movable seat 20 to move linearly relative to the main body 10, thereby changing the distance between the movable seat 20 and the pressing seat 11. During this process, the movable seat 20 and the pressing seat 11 squeeze the human tissue. Then, the drive assembly 60 drives the staple pusher plate 40 to move relative to the movable seat 20, so that the staple pusher plate pushes the staples 102 and penetrates the human tissue. The staples 102 are squeezed and deformed by the movable seat 20, and the human tissue is sutured.

[0114] The movable seat 20 moves linearly relative to the main body 10, which, on the one hand, can effectively improve the accuracy and safety of the subsequent puncture, thereby ensuring that the staples 102 effectively suturing the human tissue. On the other hand, before the staples puncture, the human tissue is squeezed, which improves the accuracy and installation of the puncture.

[0115] like Figures 8 to 12 As shown, in one embodiment of the present application, the movable seat 20 is provided with a first transmission tooth 24 and a second control member 34 .

[0116] The control assembly 30 includes a rotating transmission member 33 .

[0117] The rotating transmission member 33 is provided on the main body 10 and can rotate relative to the main body 10 . The rotating transmission member 33 is provided with second transmission teeth 331 that cooperate with the first transmission teeth 24 . The rotating transmission member 33 is configured to drive the movable seat 20 to move relative to the main body 10 .

[0118] The second control member 34 is connected to the rotation transmission member 33 , and the second control member 34 is configured to control the rotation transmission member 33 to rotate relative to the main body 10 .

[0119] The movable seat 20 and the rotating transmission member 33 are connected through transmission teeth and transmit power. The above transmission method is a meshing gear transmission system. The meshing gear transmission system has relatively accurate transmission, high efficiency, compact structure, reliable operation and long service life.

[0120] like Figures 13 to 22 As shown, in one embodiment of the present application, the control assembly 30 includes: a transmission rod 35 and a third control member 36 .

[0121] The transmission rod 35 is disposed on the main body 10 and is rotatable relative to the main body 10 . One end of the transmission rod 35 is connected to the movable seat 20 . The transmission rod 35 is configured to drive the movable seat 20 to move relative to the main body 10 .

[0122] The third control member 36 is connected to the other end of the transmission rod 35 , and the third control member 36 is configured to control the transmission rod 35 to rotate relative to the main body 10 .

[0123] The transmission rod 35 can transmit force and torque in a more direct manner. In addition, the transmission rod 35 has a simple structure and does not have a complicated transmission structure.

[0124] like Figures 1 to 22 As shown, the stapler provided by the embodiment of the second aspect of the present application includes: the above-mentioned pulley-type staple releasing device 101 and the staple 102 .

[0125] The staples 102 are assembled on the mounting portion 21 of the pulley-type staple releasing device 101 .

[0126] The stapler can effectively improve the accuracy and reliability of suturing tissues to ensure that the staples 102 effectively sew the tissues, thereby ensuring that the tissues are effectively treated. In addition, the stapler has a simple structure, a more concise product layout, and a low failure rate.

[0127] In one embodiment of the present application, the number of staples 102 is one or more, and the staples 102 are arranged in the staple box 71 of the pulley-type staple releasing device 101. The staples 102 and the staple box 71 constitute a suturing assembly, and the suturing assembly is detachably mounted on the movable seat 20 of the pulley-type staple releasing device 101.

[0128] The staples 102 are disposed in a needle box of the staple 102 release device. The staples 102 and the needle box constitute a suturing assembly, which is detachably mounted on the movable seat 20 of the staple 102 release device.

[0129] When the anastomosis needle 102 in the needle box is used up, the needle box can be directly disassembled to replace a new suturing assembly, so that the anastomosis needle 102 is quickly replaced.

[0130] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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 be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pulley-type staple releasing device, characterized in that: The pulley type staple releasing device comprises: a main body, the main body being provided with an extrusion seat and a through hole therethrough, the through hole being configured to cooperate with an endoscope; a movable seat, the movable seat being mounted on the main body and being movable relative to the main body, the setting position of the movable seat corresponding to the position of the extrusion seat, and a gap being provided between the movable seat and the extrusion seat, the movable seat being provided with a mounting portion, the mounting portion being configured to assemble anastomotic staples; a control assembly, the control assembly being disposed on the main body and connected to the movable seat, the control assembly being configured to drive the movable seat to move relative to the main body; a nail pushing plate, the nail pushing plate being disposed on the movable seat and being movable relative to the movable seat, the nail pushing plate being configured such that its pushing end abuts against the anastomotic staple to push the anastomotic staple onto the extrusion seat; a first restoring member, the first restoring member being connected to the pin pushing plate and the movable seat respectively; and A driving assembly includes a pulley and a control cable, wherein the control cable cooperates with the pulley, and the driving assembly is configured to drag the control cable to drive the pin pusher plate to move relative to the movable seat.

2. The pulley-type staple releasing device according to claim 1, characterized in that: The pulley includes a fixed pulley and a movable pulley, the fixed pulley is rotatably mounted on the movable seat, and the movable pulley is rotatably mounted on the pin pushing plate; One end of the control rope passes through the fixed pulley and the movable pulley and is connected to the movable seat.

3. The pulley type staple releasing device according to claim 2, characterized in that: A fixed pulley and a movable pulley form a pulley group, and the number of the pulley groups is multiple; One end of the control rope passes through a plurality of pulley blocks and is connected to the movable seat.

4. The pulley-type staple releasing device according to claim 1, characterized in that: The pulley is a fixed pulley, and there are multiple fixed pulleys, which are rotatably mounted on the movable seat; One end of the control rope passes through a plurality of fixed pulleys and is connected to the nail pushing plate.

5. The pulley-type staple releasing device according to claim 1, characterized in that: The mounting portion is a connecting structure configured to mount anastomosis staples.

6. The pulley-type staple releasing device according to claim 5, characterized in that: The pulley-type staple releasing device further includes: a staple cartridge detachably mounted on the mounting portion, the staple cartridge being configured to mount staples; and An elastic member is disposed in the accommodating cavity of the staple cartridge and is located on a cavity wall of the accommodating cavity away from the staple pushing plate. The elastic member is configured to support the staples.

7. The pulley-type staple releasing device according to claim 1, characterized in that: The mounting portion is a receiving cavity formed by a portion of the movable seat for assembling anastomotic staples; The pulley-type staple releasing device further includes an elastic member disposed in the accommodating cavity and located on a cavity wall of the accommodating cavity away from the staple pushing plate, and the elastic member is configured to support the staples.

8. The pulley-type staple releasing device according to any one of claims 1 to 7, characterized in that: The main body is provided with a connecting arm, the movable seat is connected to the connecting arm and can rotate relative to the main body, and the pushing end of the nail pushing plate faces the main body; The control assembly includes a first control member connected to the movable seat, and the first control member is configured to control the movable seat to rotate relative to the main body so that the pushing end of the nail pushing plate faces the extrusion seat.

9. The pulley-type staple releasing device according to claim 8, characterized in that: The pulley-type staple releasing device further includes a second resetting member, which is connected to the movable seat and the main body respectively.

10. The pulley-type staple releasing device according to claim 8, characterized in that: A limiting member is provided on the movable seat, and a setting position of the limiting member corresponds to a position of the connecting arm. The limiting member is configured to interfere with the connecting arm when the movable seat rotates through a preset angle.

11. The pulley-type staple releasing device according to claim 10, characterized in that: The movable seat is provided with two limiting members; After the movable seat rotates in the first direction by a preset angle, one of the limiting members interferes with the connecting arm; After the movable seat rotates in the second direction by a preset angle, the other limiting member interferes with the connecting arm; The first direction is opposite to the second direction.

12. The pulley-type staple releasing device according to any one of claims 1 to 7, characterized in that: 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 slide groove, and the other is a slide rail. The slide rail can slide in the slide groove so that the movable seat slides in a straight line relative to the main body.

13. The pulley-type staple releasing device according to claim 12, characterized in that: The movable seat is provided with a first transmission tooth; The control assembly includes: a rotating transmission member, which is provided on the main body and can rotate relative to the main body, and is provided with a second transmission tooth that cooperates with the first transmission tooth, and the rotating transmission member is configured to drive the movable seat to move relative to the main body; and A second control member is connected to the rotation transmission member, and the second control member is configured to control the rotation transmission member to rotate relative to the main body.

14. The pulley-type staple releasing device according to claim 12, characterized in that: The control assembly includes: a transmission rod, the transmission rod being provided on the main body and being rotatable relative to the main body, one end of the transmission rod being connected to the movable seat, the transmission rod being configured to drive the movable seat to move relative to the main body; and A third control member is connected to the other end of the transmission rod, and the third control member is configured to control the transmission rod to rotate relative to the main body.

15. A stapler, characterized in that: The stapler comprises: The pulley-type staple releasing device according to any one of claims 1 to 14; and An anastomotic staple is assembled on the mounting portion of the pulley-type anastomotic staple releasing device.

16. The stapler according to claim 15, characterized in that The number of the anastomosis staples is one or more, and the anastomosis staples are arranged in a staple box of the pulley type anastomosis staple releasing device. The anastomosis staples and the staple box constitute a suturing assembly, and the suturing assembly is detachably mounted on the movable seat of the pulley type anastomosis staple releasing device.

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