Endoscopic stapling device for fundoplication

Abstract

The present invention discloses an endoscopic stapling device for fundus folding, comprising a main body, an anvil, a fixing assembly, a traction assembly and a control assembly. The main body has a working end and a control end, the anvil is fixed to the working end of the main body by the fixing assembly, and the control assembly is fixed to the control end of the main body. The traction assembly is used to connect the fixing assembly and the control assembly, and to pull the fixing assembly under the control of the control assembly, so that the fixing assembly is separated from the main body and the anvil, thereby separating the anvil from the working end of the main body. The present invention enables the anvil and the working end of the main body to be quickly separated by providing a traction assembly and a fixing assembly that can be pulled by the traction assembly. In this way, when the anvil screw cannot be retracted, the anvil can be separated from the working end of the main body and dropped into the patient's stomach, and then the anvil can be taken out through a conventional endoscope, which can greatly reduce the stuck time of the stapling device and eliminate the need for additional laparotomy on the patient, thereby reducing secondary injuries.

Description

Technical Field

[0001] The invention relates to the technical field of minimally invasive surgical treatment instruments, in particular to an endoscopic stapling device for gastric fundus folding. Background Art

[0002] Gastroesophageal reflux disease (GERD) refers to the reflux of excessive contents from the stomach or duodenum into the esophagus, causing symptoms such as acid reflux and heartburn, and can lead to esophagitis and damage to tissues outside the esophagus, such as the pharynx, larynx, and trachea. GERD is a common disease in Western countries. Studies have shown that in recent years, the incidence of GERD in Western countries is about 10% to 20%, Australia is about 11.6%, and the incidence in Asian countries is about 5%. The incidence increases with age, with the peak age of 40 to 60 years old. There is no difference between men and women, but there are more male patients with reflux esophagitis than female patients.

[0003] For patients with general gastroesophageal reflux disease, it can be cured by changing lifestyle or taking medication. However, for patients with cardia relaxation or hiatal hernia, some do not respond well to medication, some can only solve some symptoms after medication, and some patients need to take medication for a long time. For such patients, surgical treatment is necessary. Studies have shown that about 25% to 30% of patients with gastroesophageal reflux disease do not respond well to medication or cannot tolerate long-term medication, and need surgical treatment.

[0004] The fundoplication endoscope is a medical device used to treat gastroesophageal reflux disease. Its anvil is connected to the top, and in the prior art, the anvil is often fixed to the top by a fixing pin. This connection method is likely to cause an important problem: if during the operation, the anvil screw is extended and cannot be retracted, then the patient's abdominal cavity and stomach can only be opened, and the fixing pin can be pushed out with a tool to release the fixed state of the surgical instrument, so that it can be evacuated from the human body, which is very harmful to the human body.

[0005] For medical devices, the top priority should be the protection of the human body and minimizing the damage caused in the event of possible device failure. However, in the prior art, the connection structure between the anvil and the top has obvious defects in these aspects.

[0006] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary technicians in this field need to solve urgently. Summary of the invention

[0007] The purpose of the present invention is to provide an endoscopic stapling device for gastric fundus folding, which can minimize the damage to the patient caused by instrument failure and reduce secondary injuries.

[0008] The technical solution provided by the present invention is as follows:

[0009] An endoscopic stapling device for gastric fundus folding, comprising:

[0010] Main body, cutting board, fixing assembly, traction assembly and control assembly;

[0011] The body has a working end and a control end, the anvil is fixed to the working end of the body through the fixing assembly, and the control assembly is fixed to the control end of the body;

[0012] The traction assembly is used to connect the fixing assembly and the control assembly, and pull the fixing assembly under the control of the control assembly to separate the fixing assembly from the body and the anvil, thereby separating the anvil from the working end of the body.

[0013] In some embodiments, a mounting groove for mounting the cutting board is provided on a side of the working end of the body away from the pulling assembly;

[0014] At least one side wall of the cutting board is provided with a first docking groove, and a second docking groove is provided at a side wall of the mounting groove corresponding to the first docking groove, and the first docking groove and the second docking groove together form a station for placing the fixing assembly;

[0015] A first through hole communicating with the work station is provided on the outer side wall of the working end of the body corresponding to the work station, and the fixing assembly enters the work station through the first through hole, thereby fixing the cutting board to the mounting groove; and

[0016] A second through hole is provided on one side of the workstation close to the traction component, and one end of the traction component away from the control component is fixed to the fixing component via the second through hole. Under the traction action of the traction component, the fixing component detaches from the workstation via the second through hole, so that the anvil is detached from the mounting groove.

[0017] In some embodiments, the fixing assembly includes an elastic member and blocks disposed at two ends of the elastic member, and one end of the traction assembly away from the control assembly is fixed to the elastic member.

[0018] In some embodiments, the length of the block is less than 1 / 4 of the total length of the fixing assembly.

[0019] In some embodiments, the elastic member is a spring, and the block is provided with a third through hole along its length direction.

[0020] In some embodiments, the traction assembly includes a traction line group and a connector provided at one end of the traction line group;

[0021] One end of the pulling line group away from the joint is fixed to the control component, and the joint is provided with a through hole for the fixing component to pass through.

[0022] In some embodiments, the number of the fixing components is plural, and the pulling line set includes a plurality of first connecting lines, an integrating piece for integrating the plurality of the first connecting lines, and a second connecting line disposed on the integrating piece;

[0023] The first connecting wires are arranged in one-to-one correspondence with the fixing components, and the integrating component is arranged at one end of the first connecting wire away from the fixing component, so as to fix together the ends of the first connecting wires away from the fixing component; and

[0024] The second connection line is disposed at an end of the integration component away from the first connection line, and is used for docking with the control component.

[0025] In some embodiments, the control assembly includes a housing, a rotating wheel disposed on an inner wall of the housing, and a handle disposed on an outer wall of the housing;

[0026] The rotating wheel and the handle are coaxially arranged, and a fixed axis is arranged on the side of the handle facing the rotating wheel, and a avoidance hole for the fixed axis to pass through is arranged on the housing corresponding to the fixed axis, and an end of the fixed axis away from the handle is fixedly connected to the rotating wheel;

[0027] One end of the traction wire group away from the joint is wound around the rotating wheel. When the handle is rotated, the fixed axis on the handle drives the rotating wheel to rotate synchronously, so that the rotating wheel drives the traction wire group to move away from the working end of the main body, thereby driving the fixing assembly to separate from the main body and the anvil.

[0028] In some embodiments, the side wall of the rotating wheel is provided with a wire groove for winding the traction wire group.

[0029] In some embodiments, at least one support is provided on the inner side wall of the housing at a side of the rotating wheel facing the traction device;

[0030] A wire harness through hole is provided on the top of the support for the end of the traction wire group away from the connector to pass through.

[0031] The technical effects of the present invention are:

[0032] 1. In this patent, by providing a traction component and a fixing component that can be pulled by the traction component, the anvil and the working end of the body can be quickly separated. In this way, when the anvil screw cannot be retracted, the anvil can be separated from the working end of the body and dropped into the patient's stomach. Then, the anvil can be removed through a conventional endoscope, which can greatly reduce the stuck time of the stapling device and eliminate the need for additional laparotomy on the patient, thus reducing secondary injuries.

[0033] 2. In this patent, the fixing assembly includes an elastic member and a clamping block disposed at both ends of the elastic member. At this time, the clamping blocks disposed at both ends of the elastic member are rigid structures and can play a certain supporting role, so that the fixing assembly can fix the anvil in the installation groove more stably. Relatively speaking, the elastic member allows the fixing assembly to be deformed by force, so that the fixing assembly can be pulled by the traction assembly and detach from the workstation through the second through hole to achieve the detachment of the anvil. It is worth noting that the clamping block can also prevent the fixing assembly from being deformed and detached from the workstation due to only slight force, thereby preventing the anvil from detaching from the working end of the body due to accidental touch.

[0034] 3. In this patent, by making the length of the clamping block less than 1 / 4 of the total length of the fixed component, when the fixed component is deformed by force, the clamping blocks at both ends will not interfere with the second through hole, thereby preventing the fixed component from being unable to leave the work station. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0036] Figure 1 It is a partial structural schematic diagram of the stapling device provided by the present invention;

[0037] Figure 2 It is a three-dimensional structural schematic diagram of the removal control assembly and the second connection line of the stapling device provided by the present invention;

[0038] Figure 3 It is a schematic diagram of the three-dimensional structure of the working end provided by the present invention in one state;

[0039] Figure 4 It is a schematic diagram of the three-dimensional structure of the working end provided by the present invention in another state;

[0040] Figure 5 is a top view of the working end provided by the present invention;

[0041] Figure 6 is a side view of the working end provided by the present invention;

[0042] Figure 7 It is a three-dimensional structural schematic diagram of the cutting board provided by the present invention;

[0043] Figure 8 It is a partial schematic diagram of the assembly of the fixing assembly and the pulling assembly provided by the present invention;

[0044] Fig. 9 It is a cross-sectional view of the fixing assembly provided by the present invention when it is not separated from the working position;

[0045] Fig.10 is a cross-sectional view of the fixing assembly provided by the present invention when it is out of the working position;

[0046] Fig.11 is a cross-sectional view of the control assembly provided by the present invention.

[0047] Description of Figure Numbers:

[0048] 100, working end; 110, mounting groove; 111, second docking groove; 112, work station; 113, first through hole; 114, second through hole;

[0049] 200, anvil; 210, first docking groove;

[0050] 300, fixing assembly; 310, elastic member; 320, clamping block; 321, third through hole;

[0051] 400, traction assembly; 410, traction line group; 411, first connection line; 412, integration piece; 413, second connection line; 420, connector; 421, via hole;

[0052] 500, control assembly; 510, housing; 511, support; 520, rotating wheel; 521, wire groove; 530, handle; 531, fixed axis. DETAILED DESCRIPTION

[0053] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0055] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0056] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0057] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, the indications of these directions also change accordingly.

[0059] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0060] According to a specific embodiment provided by the present invention, see Figures 1 to 11 , a stapler for gastric fundus folding endoscope, specifically may include a body, anvil 200, fixing assembly 300, traction assembly 400 and control assembly 500. The body has a working end 100 and a control end, the anvil 200 is fixed to the working end 100 of the body through the fixing assembly 300, and the control assembly 500 is fixed to the control end of the body. The traction assembly 400 is used to connect the fixing assembly 300 and the control assembly 500, and under the control of the control assembly 500, the fixing assembly 300 is pulled to separate the fixing assembly 300 from the body and the anvil 200, thereby separating the anvil 200 from the working end 100 of the body.

[0061] Generally speaking, there will inevitably be certain manufacturing errors when parts are processed. Parts with manufacturing errors within the allowable range will continue to be put into use, while parts with manufacturing errors beyond the allowable range will be considered as processing failures and will be screened out and not used. However, it is inevitable that some parts that cannot be processed will be mixed into qualified parts, which leads to a certain probability that the screws on the working end 100 of the main body have large manufacturing errors. If the screw has a large manufacturing error, the thread on it will be easily damaged by force, causing the screw to be stuck after extending through the hole on the anvil 200 and unable to be retracted. In the prior art, the stapling device of the endoscope for fundus folding often fixes the anvil 200 and the working end 100 of the main body together, and the fixed state between the two cannot be easily released. At this time, if the above-mentioned screws cannot be returned, the medical staff can only open the patient's abdominal cavity and stomach through surgery, and use tools to push out the original fixing parts used to fix the anvil 200 and the working end of the main body 100, so that the fixing state of the anvil 200 and the working end of the main body 100 is released, so that the main body can be evacuated from the human body, which is very harmful to the patient.

[0062] In this regard, in order to minimize the damage caused to the patient in the event of possible instrument failure, this embodiment provides a staple device for an endoscope for fundus folding, which can quickly separate the anvil 200 and the working end 100 of the body by providing a traction component 400 and a fixing component 300 that can be pulled by the traction component 400. In this way, when the screws on the anvil 200 cannot be retracted, the medical staff can first use the control component 500 to make the traction component 400 pull the fixing component 300, so that the control component 500 is separated from the body and the anvil 200, and then the anvil 200 is separated from the working end 100 of the body and falls into the patient's stomach. Then, the medical staff removes the anvil 200 through a conventional endoscope, which can greatly reduce the stuck time of the staple device, enable the medical staff to quickly perform emergency treatment, and do not need to perform additional laparotomy on the patient, reducing secondary injuries and successfully minimizing the damage to the patient.

[0063] In this embodiment, the cutting board 200 can be made of metal material, and the main body working end 100 can be made of plastic material.

[0064] Specifically, see Figures 1 to 7, a mounting groove 110 for mounting the anvil 200 is provided on a side of the working end 100 of the main body away from the pulling assembly 400. A first docking groove 210 is provided on at least one side wall of the anvil 200, and a second docking groove 111 is provided on the side wall of the mounting groove 110 corresponding to the first docking groove 210. At this time, the first docking groove 210 and the second docking groove 111 together form a station 112 for placing the fixing assembly 300. A first through hole 113 connected to the station 112 is provided on the outer side wall of the working end 100 of the main body corresponding to the station 112, and the fixing assembly 300 enters the station 112 through the first through hole 113, thereby fixing the anvil 200 to the mounting groove 110. A second through hole 114 is provided on one side of the work station 112 close to the traction assembly 400, and one end of the traction assembly 400 away from the control assembly 500 is fixed to the fixing assembly 300 through the second through hole 114. Under the traction of the traction assembly 400, the fixing assembly 300 detaches from the work station 112 through the second through hole 114, so that the anvil 200 detaches from the mounting groove 110.

[0065] In this embodiment, by providing the first through hole 113, the fixing assembly 300 can be directly inserted into the work station 112, and the installation is convenient and quick. When the fixing assembly 300 is located in the work station 112, the two opposite side walls of the first docking groove 210 and the two opposite side walls of the second docking groove 111 can abut against the side walls of the fixing assembly 300. At this time, the fixing assembly 300 can limit the longitudinal movement of the anvil 200 relative to the working end 100 of the body. At the same time, the installation groove 110 can limit the lateral movement of the anvil 200 relative to the working end 100 of the body, and combined with the limiting function of the fixing assembly 300, the anvil 200 can be fixed to the installation groove 110.

[0066] Correspondingly, the work station 112 is provided with a second through hole 114 for disengaging the fixing assembly 300 from the anvil 200 and the working end 100 of the main body. When the screw on the anvil 200 cannot be retracted, the fixing assembly 300 can be disengaged from the work station 112 through the second through hole 114 under the traction of the traction assembly 400. The whole process is quick and simple, which can greatly reduce the stuck time and reduce the harm to the patient.

[0067] It is worth noting that in the present embodiment, the work station 112 for placing the fixing component 300, the first through hole 113 for installing the fixing component 300, and the second through hole 114 for allowing the fixing component 300 to be detached from the work station 112 are all arranged inside the working end 100 of the main body without increasing its external dimensions. In this way, the fundus folding endoscope using the stapling device provided in the present embodiment can still be smoothly inserted into the patient's body without increasing the patient's discomfort, and the practicality is greatly improved.

[0068] In this embodiment, the station 112 formed by the first docking groove 210 and the corresponding second docking groove 111 is cylindrical, and both ends of the station 112 extend to the corresponding side wall of the installation groove 110 to connect one end of the adjacent side walls.

[0069] Preferably, see Figures 1 to 7 Each station 112 is connected to two first through holes 113, and the two first through holes 113 are respectively arranged at the positions of the working end 100 of the body corresponding to the two ends of the station 112. At this time, the first through hole 113 can be arranged with the same diameter as the station 112, so that the first through hole 113 and the station 112 can be used to place the fixing assembly 300 at the same time, and the length of the fixing assembly 300 should not be greater than the total length of the station 112 and the first through hole 113.

[0070] Further, see Figure 4 , Figure 6 and Figure 7 The side of the chopping board 200 away from the working end 100 of the main body is in an arc shape, and the end of the working end 100 of the main body facing the chopping board 200 is in an arc shape.

[0071] Specifically, see Figures 8 to 10 The fixing component 300 includes an elastic component 310 and blocks 320 disposed at both ends of the elastic component 310 , and one end of the traction component 400 away from the control component 500 is fixed to the elastic component 310 .

[0072] In this embodiment, the blocks 320 at both ends of the elastic member 310 are rigid structures and can play a certain supporting role, so that the fixing assembly 300 can relatively stably fix the anvil 200 to the mounting groove 110. Relatively speaking, when the traction assembly 400 pulls the fixing assembly 300 under the control of the control assembly 500, the elastic member 310 will be deformed by the combined action of the traction device and the wall of the second through hole 114, so that the fixing assembly 300 can be separated from the station 112 through the second through hole 114, and the anvil 200 can be separated.

[0073] It is worth noting that the block 320 can also prevent the fixing assembly 300 from being deformed and separated from the workstation 112 due to only slight force, thereby preventing the anvil 200 from being separated from the main working end 100 due to medical staff accidentally touching the control assembly 500, thereby improving the practicality of the stapling device provided in this embodiment.

[0074] Preferably, the length of the block 320 is less than 1 / 4 of the total length of the fixing component 300. In this way, when the fixing component 300 is deformed by force, the blocks 320 at both ends will not interfere with the second through hole 114, thereby causing jamming, which can effectively prevent the fixing component 300 from being unable to detach from the workstation 112.

[0075] Of course, in actual production, the specific length of the block 320 and the total length of the fixing assembly 300 can be flexibly set according to actual conditions, which are not described here one by one and are all within the protection scope of the present invention.

[0076] Specifically, see Figures 8 to 10 , the elastic member 310 is a spring, and the block 320 should be a columnar structure, and a third through hole 321 is provided along its length direction. In this embodiment, the elastic member 310 is a spring, and the block 320 is a columnar structure, so that the fixing assembly 300 can better fit the contour shape of the first through hole 113 and the station 112. At the same time, the block 320 is provided with a third through hole 321 along its length direction, which can play a certain role in weight reduction and save materials.

[0077] Specifically, see Figure 1 , Figure 8 , Fig. 9 and Fig.10 The traction assembly 400 includes a traction line group 410 and a connector 420 provided at one end of the traction line group 410. One end of the traction line group 410 away from the connector 420 is fixed to the control assembly 500, and the connector 420 is provided with a through hole 421 for the fixing assembly 300 to pass through. When installing the fixing assembly 300, the connector 420 can be first inserted into the station 112 through the second through hole 114, and then the fixing assembly 300 can be inserted into the through hole 421 of the connector 420 through the first through hole 113, and the fixing assembly 300 is located in the space formed by the first through hole 113 and the station 112, so as to complete the assembly between the anvil 200, the main body working end 100, the fixing assembly 300 and the traction assembly 400.

[0078] In one embodiment, see Figure 1 and Figure 8 , the number of the fixing components 300 is multiple, and the traction line group 410 includes multiple first lines 411, an integration piece 412 for integrating the multiple first lines 411, and a second line 413 provided on the integration piece 412. The first lines 411 are arranged one-to-one with the fixing components 300, and the integration piece 412 is provided at one end of the first lines 411 away from the fixing components 300, so as to fix together one end of the multiple first lines 411 away from the fixing components 300. The second line 413 is provided at one end of the integration piece 412 away from the first lines 411, so as to dock with the control component 500.

[0079] In this embodiment, by providing an integration part 412, the line arrangement of the entire traction assembly 400 is made neater and less cluttered. At the same time, the control assembly 500 can simultaneously control multiple first lines 411 via the second line 413, so that multiple fixing assemblies 300 are simultaneously detached from the anvil 200 and the working end 100 of the main body, thereby allowing the anvil 200 and the working end 100 of the main body to be quickly separated. The integration is high, and the jamming time of the stapling device is greatly reduced, thereby reducing the harm to the patient.

[0080] Preferably, there are two fixing components 300, which are symmetrically distributed on two opposite sides of the cutting board 200, so that the cutting board 200 can be more firmly fixed to the working end 100 of the body, will not get loose easily, and has strong stability.

[0081] Specifically, see Fig.11 The control assembly 500 includes a housing 510, a rotating wheel 520 disposed on the inner side wall of the housing 510, and a handle 530 disposed on the outer side wall of the housing 510. The rotating wheel 520 and the handle 530 are coaxially arranged, and a fixed axis 531 is disposed on the side of the handle 530 facing the rotating wheel 520. The housing 510 is provided with an avoidance hole for the fixed axis 531 to pass through at a position corresponding to the fixed axis 531, and the end of the fixed axis 531 away from the handle 530 is fixedly connected to the rotating wheel 520. At this time, the end of the traction line group 410 away from the joint 420 is wound around the rotating wheel 520. When the medical staff rotates the handle 530, the fixed axis 531 on the handle 530 drives the rotating wheel 520 to rotate synchronously, so that the rotating wheel 520 drives the traction line group 410 to move away from the working end 100 of the body, and then drives the fixing assembly 300 to separate from the body and the anvil 200. The operation is convenient and quick, which is conducive to the medical staff to quickly perform emergency treatment and reduce the stuck time.

[0082] Preferably, see Figure 1 and Fig.11 The side wall of the rotating wheel 520 is provided with a wire groove 521 for the traction wire group 410 to be wound, which is more conducive to the second connecting line 413 being wound on the rotating wheel 520, making it easier for medical staff to control the traction assembly 400, and the second connecting line 413 will not spread out from the edge of the rotating wheel 520.

[0083] Further, see Figure 1 and Fig.11 At least one support 511 is provided on the inner wall of the housing 510 on the side of the rotating wheel 520 facing the traction device, and a wire harness through hole is provided on the top of the support 511 for the end of the traction wire group 410 away from the connector 420 to pass through.

[0084] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0085] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An endoscopic stapling device for fundus folding, characterized in that: include: Main body, cutting board, fixing assembly, traction assembly and control assembly; The body has a working end and a control end, the anvil is fixed to the working end of the body through the fixing assembly, and the control assembly is fixed to the control end of the body; The traction assembly is used to connect the fixing assembly and the control assembly, and pull the fixing assembly under the control of the control assembly to separate the fixing assembly from the body and the anvil, thereby separating the anvil from the working end of the body; Wherein, a mounting groove for mounting the cutting board is provided on a side of the working end of the body away from the pulling assembly; a first docking groove is provided on at least one side wall of the cutting board, a second docking groove is provided on a side wall of the mounting groove corresponding to the first docking groove, and the first docking groove and the second docking groove together form a station for placing the fixing assembly; and a first through hole connected to the station is provided on an outer side wall of the working end of the body corresponding to the station, and the fixing assembly enters the station through the first through hole, thereby fixing the cutting board to the mounting groove; A second through hole is provided on one side of the workstation close to the traction assembly, the fixing assembly includes an elastic member and blocks provided at both ends of the elastic member, one end of the traction assembly away from the control assembly is fixed to the elastic member via the second through hole, and under the traction action of the traction assembly, the fixing assembly is detached from the workstation via the second through hole, so that the anvil is detached from the mounting groove.

2. The stapling device according to claim 1, characterized in that: The length of the clamping block is less than 1 / 4 of the total length of the fixing assembly.

3. The stapling device according to claim 1, characterized in that: The elastic member is a spring, and the clamping block is provided with a third through hole along its length direction.

4. The stapling device according to claim 1, characterized in that: The traction assembly includes a traction line group and a connector provided at one end of the traction line group; One end of the pulling line group away from the joint is fixed to the control component, and the joint is provided with a through hole for the fixing component to pass through.

5. The stapling device according to claim 4, characterized in that: The number of the fixing components is multiple, and the pulling line group includes multiple first connecting lines, an integrating piece for integrating the multiple first connecting lines, and a second connecting line provided on the integrating piece; The first connecting wires are arranged in one-to-one correspondence with the fixing components, and the integrating component is arranged at one end of the first connecting wire away from the fixing component, so as to fix together the ends of the first connecting wires away from the fixing component; and The second connection line is disposed at an end of the integration piece away from the first connection line, and is used for docking with the control component.

6. The stapling device according to claim 4 or 5, characterized in that: The control assembly includes a housing, a rotating wheel disposed on the inner wall of the housing, and a handle disposed on the outer wall of the housing; The rotating wheel and the handle are coaxially arranged, and a fixed axis is arranged on the side of the handle facing the rotating wheel, and a avoidance hole for the fixed axis to pass through is arranged on the housing corresponding to the fixed axis, and an end of the fixed axis away from the handle is fixedly connected to the rotating wheel; One end of the traction wire group away from the joint is wound around the rotating wheel. When the handle is rotated, the fixed axis on the handle drives the rotating wheel to rotate synchronously, so that the rotating wheel drives the traction wire group to move away from the working end of the main body, thereby driving the fixing assembly to separate from the main body and the anvil.

7. The stapling device according to claim 6, characterized in that: The side wall of the rotating wheel is provided with a wire groove for winding the traction wire group.

8. The stapling device according to claim 6, characterized in that: At least one support seat is provided on the inner side wall of the housing, located on the side of the rotating wheel facing the traction assembly; A wire harness through hole is provided on the top of the support for the end of the traction wire group away from the connector to pass through.

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