Endoscopic digestive tract folding device and puncture stitching instrument assembly

Abstract

The utility model discloses an endoscope alimentary canal folding device and a puncture stitching instrument assembly, and the endoscope alimentary canal folding device comprises a mounting tube, a deformation tube, a clamping part and a control cable. By means of the device, the alimentary canal wall is extruded before puncture, especially the device is applied to gastric fundus cardia folding, so that the gastric fundus and the esophagus are close to each other, the puncture stroke is shortened, visceral organ blood vessels on the puncture path are pushed away, the puncture safety is greatly improved, and meanwhile puncture can be completed more efficiently. In addition, by means of the device, the suture piece can be released through visual puncture under an existing ultrasonic endoscope, and new equipment is not needed. In addition, the endoscope alimentary canal folding device is simple in structure, an operator can complete operation more quickly, and operation errors are not prone to occurring.

Description

Technical Field

[0001] This application relates to the field of medical device technology for endoscopic minimally invasive surgery, and in particular to an endoscopic digestive tract folding device and a puncture and suturing device assembly. Background Technology

[0002] Gastroesophageal reflux disease (GERD) is a common digestive tract disease with an increasing incidence rate. The proportion of patients who do not respond effectively to lifestyle and dietary adjustments and medication is also rising. For these patients, flexible endoscopic fundoplication is a good option. Currently, only a few fundoplication instruments are available, all of which are imported and have complex structures. They cannot be performed using existing endoscopic systems for visualization, requiring a completely new set of equipment, resulting in high medical costs and hindering widespread adoption to benefit most patients. Utility Model Content

[0003] In a first aspect, embodiments of this application provide an endoscopic digestive tract folding device for use with an endoscope and endoscope accessories, comprising: an installation tube having an observation window at one end, the observation window being located on the wall of the installation tube, and the installation tube having a through-hole configured for the endoscope and endoscope accessories to pass through; a deformable tube having one end disposed at the end of one end of the installation tube, the deformable tube being configured to bend and deform; a clamping part disposed at the other end of the deformable tube; and a control cable connected to the clamping part, the control cable being configured to control the clamping part to move toward the installation tube, so that the clamping part cooperates with the installation tube to compress digestive tract tissue.

[0004] In some embodiments, the deformable tube is a spring tube; or the deformable tube includes at least one connecting ring.

[0005] In some embodiments, when the deformable tube is a spring tube, the mounting tube, the deformable tube, and the clamping part are integrally formed as a single structure.

[0006] In some embodiments, the device further includes a guide structure disposed at one end of the mounting tube, wherein the control cable passes around the guide structure and is connected to the clamping portion.

[0007] In some embodiments, the guide structure is a fixed pulley, which is rotatably mounted on the mounting tube.

[0008] In some embodiments, the endoscopic digestive tract folding device further includes: a control conduit connected to the mounting tube, one end of the control cable passing through the control conduit and connected to the clamping portion; or one end of the control cable passing through a channel of the mounting tube and connected to the clamping portion.

[0009] In some embodiments, the number of control cables is two, and the two control cables are connected to two connecting portions symmetrically arranged on the clamping portion.

[0010] In some embodiments, the mounting tube has one or more parallel channels for the endoscope fitting to pass through.

[0011] In some embodiments, the clamping portion is provided with a through hole configured for the puncture needle of the suture device to pass through.

[0012] In some embodiments, the clamping portion is provided with a receiving groove configured to receive digestive tract tissue.

[0013] Compared with existing technologies, the above technical solution has the following advantages:

[0014] During the procedure, the endoscopic gastrointestinal folding device is inserted into the stomach through the esophagus. An auxiliary component then extends through the observation window to pull the gastric fundus. A control cable moves the clamping part closer to the insertion tube, causing the clamping part to bring the gastric fundus towards the esophagus. Finally, the clamping part and the insertion tube work together to press the gastric fundus against the esophagus. A suture device is then inserted through the observation window to suture the overlapping gastric fundus and esophagus together. In this process, the endoscopic gastrointestinal folding device compresses the gastrointestinal wall before puncture, especially in the folding of the gastric fundus and cardia, bringing the gastric fundus closer to the esophagus. This shortens the puncture distance and pushes aside organs and blood vessels along the puncture path, greatly improving the safety of the puncture and completing it more efficiently. Furthermore, this device allows the use of existing endoscopic ultrasound-guided visualization for suture release, eliminating the need for new equipment. Additionally, the simple structure of the endoscopic gastrointestinal folding device allows the operator to complete the procedure more quickly and reduces the risk of errors.

[0015] Secondly, embodiments of this application provide a puncture suture assembly for use with an endoscope, comprising the aforementioned endoscopic digestive tract folding device; and a suture, wherein the puncture needle of the suture is inserted into the working channel of the endoscope and extends to the end of the mounting tube, the suture being configured to secure a suture to digestive tract tissue.

[0016] In some embodiments, the puncture needle is a needle tube configured to guide a suture through digestive tract tissue.

[0017] In some embodiments, the puncture suture assembly further includes a suture element disposed within the needle tube, the suture element including a suture and a limiting structure.

[0018] Compared with existing technologies, the above technical solution has the following advantages:

[0019] The puncture suture assembly significantly improves the safety of punctures while enabling more efficient puncture procedures. Furthermore, it utilizes existing endoscopic ultrasound-guided puncture and release sutures, eliminating the need for new equipment. Additionally, the assembly's simple structure allows operators to complete the procedure more quickly and reduces the likelihood of errors. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a first embodiment of the endoscopic digestive tract folding device provided in some embodiments of this application;

[0022] Figure 2 A schematic diagram of a second embodiment of the endoscopic digestive tract folding device provided in some embodiments of this application;

[0023] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the endoscopic digestive tract folding device shown.

[0024] Figure 4 A schematic diagram of the third embodiment of the endoscopic digestive tract folding device provided in some embodiments of this application;

[0025] Figure 5 A schematic diagram of the structure of a first embodiment of the puncture suture assembly provided in some embodiments of this application;

[0026] Figure 6 A schematic diagram of the fourth embodiment of the endoscopic digestive tract folding device provided in some embodiments of this application;

[0027] Figure 7 for Figure 6 A partial structural schematic diagram of the endoscopic digestive tract folding device shown in the figure;

[0028] Figure 8 A schematic diagram of a second embodiment of the puncture suture assembly provided in some embodiments of this application;

[0029] Figure 9 A schematic diagram of the fifth embodiment of the endoscopic digestive tract folding device provided in some embodiments of this application;

[0030] Figure 10 for Figure 9 A schematic diagram of the exploded structure of the endoscopic digestive tract folding device shown.

[0031] Figure 11 for Figure 9 A partially exploded view of the puncture suture assembly shown.

[0032] Figure 12 A schematic diagram of the structure in a first state when suturing digestive tract tissue, provided in some embodiments of this application;

[0033] Figure 13 This is a schematic diagram of the structure in a second state when suturing digestive tract tissue, as provided in some embodiments of this application.

[0034] The attached figures are labeled as follows:

[0035] 10. Installation pipe; 11. Observation window; 12. Passageway;

[0036] 20. Deformable tube; 21. Connecting ring;

[0037] 30. Clamping part; 31. Through hole; 32. Receiving groove;

[0038] 40. Control cable;

[0039] 50. Guide structure; 51. Fixed pulley;

[0040] 100. Endoscopic digestive tract folding device; 200. Suturer; 300. Endoscope; 400. Digestive tract tissue; 500. Suture post; 501. Fixation post; 502. Connecting suture; 600. Auxiliary instruments. Detailed Implementation

[0041] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and the foregoing description of this application are intended to cover non-exclusive inclusion.

[0043] The term "embodiment" as used in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0044] The specific term "exemplary" used in this application means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0045] In the description of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In the description of this application, "multiple" means two or more (including two), unless otherwise expressly and specifically defined.

[0047] In the description of this 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. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0048] like Figures 1 to 10 As shown, an embodiment of the first aspect of this application provides an endoscopic digestive tract folding device 100 for use with an endoscope 300 and a suture device 200, comprising: an installation tube 10, a deformable tube 20, a clamping part 30, and a control cable 40.

[0049] An observation window 11 is provided at one end of the installation tube 10. The observation window 11 is located on the tube wall of the installation tube 10, and the installation tube 10 has a channel 12 passing through it. The channel 12 is configured to allow the endoscope 300 and the suture device 200 to pass through.

[0050] One end of the deformable tube 20 is located at one end of the mounting tube 10, and the deformable tube 20 is configured to be bent and deformed.

[0051] The clamping part 30 is located at the other end of the deformable tube 20.

[0052] The control cable 40 is connected to the clamping part 30. The control cable 40 is configured to control the clamping part 30 to move closer to the mounting tube 10, so that the clamping part 30 cooperates with the mounting tube 10 to squeeze the digestive tract tissue 400. For ease of operation, an operating handle may be provided at the end of the control cable 40.

[0053] Taking the esophageal, gastric fundus, and cardia as the operating sites, the operation of the endoscopic digestive tract folding device 100 provided in this application is as follows:

[0054] 1. The endoscopic digestive tract folding device 100 is fitted onto the endoscope 300. Under the guidance of the endoscope 300, the operator inserts the endoscopic digestive tract folding device into the esophagus and stomach. The observation window 11 of the installation tube 10 is located at the cardia of the esophagus, and the clamping part 30 is located at the fundus of the stomach.

[0055] 2. The operator inserts the field of view lens of the endoscope 300 (e.g., an ultrasound endoscope) into the installation tube 10, and ensures that both the field of view lens and the working channel of the endoscope 300 are located at the observation window 11. The field of view lens of the endoscope 300 can scan the digestive tract tissue 400 through the observation window 11 to observe the situation outside the digestive tract lumen.

[0056] 3. The operator manipulates the control cable to clamp and compress the gastric fundus with the clamping part 30, bringing the gastric fundus to be punctured closer to the esophagus. Specifically, the operator drags the control cable 40, which controls the clamping part 30 to move closer to the installation tube 10, so that the clamping part 30 pulls the gastric fundus towards the esophagus, ultimately pressing the gastric fundus against the esophagus through the cooperation of the clamping part 30 and the installation tube 10. Additionally, as... Figures 6 to 8 As shown, if parallel channels are provided inside, outside or inside the wall of the installation tube 10, existing endoscopic auxiliary instruments (such as endoscopic forceps) can pass through the parallel channels to grasp the gastric fundus and cardia tissue, so as to pull the gastric fundus and cardia tissue between the installation tube 10 and the clamping part 30, thereby improving the effectiveness and safety of the operation.

[0057] 4. The operator inserts the suture device 200 into the working channel of the endoscope 300, up to the observation window 11, and then performs puncture and anchoring of the suture at the puncture site.

[0058] The endoscopic digestive tract folding device 100 provided in this application, after entering the human body, can push aside organs, blood vessels, and tissues along the operating path, forming an independent operating channel 12 within the body. This avoids damage to organs and major blood vessels at the puncture site by the suture device 200 during entry into the body or puncture suturing, thus greatly improving the safety of the puncture suturing process. Furthermore, the gastric fundus is relatively free, making it difficult to penetrate during puncture from the esophagus to the gastric fundus. Therefore, the endoscopic digestive tract folding device 100 provides compression and support, making the puncture safer and more effective.

[0059] In addition, the endoscopic digestive tract folding device 100 has a simple structure with no complicated connection structure between the components, making the overall structure of the product more compact and stable. At the same time, the endoscopic digestive tract folding device 100 is easy to operate, making it easier for operators to understand its working principle and operation method. It is easy for operators to get started, allowing them to complete the operation more quickly and reducing the likelihood of operational errors.

[0060] like Figures 1 to 5 As shown, in one embodiment of this application, the deformable tube 20 is a spring tube. Alternatively, the mounting tube 10 can also be a spring tube.

[0061] The spring tube has excellent fatigue resistance, capable of withstanding repeated bending without easily being damaged. This allows the deformed tube 20 to maintain good performance even after multiple inspections, reducing the frequency of repairs and replacements due to pipe damage.

[0062] In another embodiment of this application, the deformable tube 20 includes at least one connecting ring 21.

[0063] When the deformable tube 20 bends, the stress is distributed at the hinge of the connecting ring 21, avoiding stress concentration and reducing the risk of local fatigue damage, thereby improving the durability of the deformable tube 20. In addition, the connecting ring 21 can maintain good shape stability after bending and is not prone to wobbling or deformation.

[0064] like Figure 4 and Figure 5 As shown, in one embodiment of this application, the clamping part 30 is provided with a through hole 31, which is configured to allow the puncture needle of the suture 200 to pass through.

[0065] The through hole 31 provides a puncture space for the puncture needle, so that the puncture needle can more effectively puncture the digestive tract tissue 400, that is, facilitate the puncture of the digestive tract tissue 400 by the puncture needle, so as to improve the suturing effect of the product on the digestive tract tissue 400.

[0066] In one embodiment of this application, the clamping part 30 is provided with a receiving groove 32, which is configured to receive digestive tract tissue 400.

[0067] The inclusion groove 32 allows the clamping part 30 to accommodate a larger portion of the stomach wall.

[0068] like Figure 9 and Figure 10 As shown, in one specific embodiment of this application, the deformable tube 20 includes a plurality of hinged connecting rings 21.

[0069] The deformable tube 20, with multiple connecting rings 21 hinged together, can achieve more complex and multi-dimensional bending, better adapting to various irregular shapes and complex path requirements. In addition, the hinged structure of the connecting rings 21 can more precisely control the bending angle and shape of the deformable tube 20. By adjusting the angle of each connecting ring 21, the degree of bending can be finely adjusted to meet the bending accuracy requirements in different scenarios.

[0070] In one embodiment of this application, when the deformable tube 20 is a spring tube, the mounting tube 10, the deformable tube 20, and the clamping part 30 are integrally formed into a single structure.

[0071] The above structure ensures the connection strength between the mounting tube 10, the deformable tube 20 and the clamping part 30, thereby ensuring the overall mechanical strength of the product and ensuring the reliability of the product.

[0072] like Figures 1 to 10 As shown, in one embodiment of this application, the endoscopic digestive tract folding device 100 further includes a guide structure 50.

[0073] The guide structure 50 is located at one end of the mounting tube 10, and the control cable 40 is connected to the clamping part 30 after passing around the guide structure 50.

[0074] The guide structure 50 provides stable support and constraint for the control cable 40, enabling the control cable 40 to maintain relative stability during the bending process of the deformation tube 20, thereby preventing unnecessary shaking or deviation during operation.

[0075] In addition, the guide structure 50 allows the control cable 40 to move within a specified path, avoiding unnecessary friction and collision between the control cable 40 and other components or pipe walls. This effectively reduces the wear rate of the control cable 40, extends its service life, reduces the risk of product failure due to damage to the control cable 40, and improves the overall reliability of the product.

[0076] like Figures 1 to 10 As shown, in one embodiment of this application, the guide structure 50 is a fixed pulley 51, which is rotatably mounted on the mounting tube 10.

[0077] The above structure results in rolling friction between the control cable 40 and the guide structure 50, which greatly reduces the friction between the control cable 40 and the guide structure 50, reduces the wear of the control cable 40 itself, extends its service life, and also reduces the additional power required to overcome the friction.

[0078] In addition, since the endoscopic digestive tract folding device 100 is small in size and has limited space, the fixed pulley 51 can be flexibly installed in different positions according to the actual equipment layout and operation requirements to achieve the steering of the control cable 40, which makes the design and layout of the entire product more flexible.

[0079] In one embodiment of this application, the endoscopic digestive tract folding device further includes a control conduit.

[0080] The control pipe is connected to the installation pipe, and one end of the control cable passes through the control pipe and is connected to the clamping part.

[0081] The control conduit design ensures that the control cable and other instruments are located in separate channels, preventing interference between them and allowing for smoother movement of the control cable within the conduit. This guarantees operational accuracy and significantly improves surgical efficiency and precision.

[0082] like Figures 1 to 10 As shown, in another embodiment of this application, one end of the control cable 40 passes through the channel 12 of the mounting tube 10 and is connected to the clamping part 30.

[0083] The above structure allows the control cable 40 to share a channel 12 with other instruments. On the one hand, this facilitates the integration of different instruments and makes the cooperation between them closer. On the other hand, it makes the overall structure of the product more compact and easier to operate.

[0084] like Figures 1 to 10 As shown, in one embodiment of this application, there are two control cables 40, and the two control cables 40 are connected to two connecting portions symmetrically arranged on the clamping portion 30.

[0085] The above structure enables the control cable 40 to precisely operate the connecting part. The two symmetrically arranged control cables 40 can apply tension to the clamping part 30 from different directions, thereby enabling precise control of the position, angle and direction of movement of the clamping part 30, just like manipulating a robotic arm, improving the accuracy and safety of product operation.

[0086] In addition, the symmetrically arranged control cables 40 can balance the force on the connecting part and prevent the clamping part 30 from shaking due to the tension in one direction. This ensures that the clamping part 30 remains stable and prevents operational errors or damage to surrounding tissues due to shaking, thereby improving the accuracy and safety of product operation.

[0087] In one embodiment of this application, a (e.g.,) is provided inside the mounting tube. Figures 1 to 5 (as shown) or multiple (such as) Figures 6 to 8 As shown, parallel channels 12 allow endoscope fittings to pass through.

[0088] Because the multiple channels 12 are relatively independent, different instruments can enter different channels 12 without interfering with each other. This allows for smoother movement of instruments within the tube, enabling more precise positioning of the target location. Simultaneously, it ensures operational accuracy and significantly improves surgical efficiency and safety. Figure 8 As shown, during the procedure, existing endoscopic forceps (endoscopic accessories) are inserted through parallel channels 12 to clamp and pull the gastrointestinal wall tissue (digestive tract tissue 400), making puncture more effective. At the same time, the puncture site can be kept away from organs and blood vessels outside the lumen, improving the safety of the operation.

[0089] like Figure 5 or Figure 8 As shown, an embodiment of the second aspect of this application provides a puncture and suturing device assembly for use with an endoscope 300, including an endoscopic digestive tract folding device 100 and a suturing device 200.

[0090] The puncture needle of the suture device 200 is inserted into the working channel of the endoscope 300 and extends to the end of the mounting tube 10. The suture device 200 is configured to fix the suture to the digestive tract tissue 400.

[0091] The puncture suture assembly provided in this application applies pressure to the digestive tract wall before puncture, particularly at the folds of the gastric fundus and cardia, bringing the gastric fundus closer to the esophagus. This shortens the puncture path and pushes aside organs and blood vessels along the puncture route. Simultaneously, it fixes the relatively mobile gastric fundus, improving puncture safety and efficiency. This device allows for the use of existing endoscopic ultrasound-guided puncture and suture release devices, eliminating the need for new equipment. Visualization of the puncture path provides clear observation, significantly improving safety and accuracy. Furthermore, the puncture suture assembly has a simple structure, allowing operators to complete the procedure more quickly and reducing the risk of errors.

[0092] In one embodiment of this application, the puncture needle is a needle tube configured to guide the suture through digestive tract tissue 400.

[0093] The suture is restrained inside the needle, preventing it from swinging or bending freely. This effectively prevents the needle from excessively penetrating or tearing tissue, thus reducing additional damage to the stomach tissue during surgery. When the suture passes through the needle for suturing, the needle's guiding effect allows it to reach the required suturing site more precisely, avoiding suture position deviations and facilitating accurate suturing of the digestive tract tissue. Furthermore, in situations with limited operating space, using the needle to assist suturing allows the operator to better control the direction and depth of the suture. Simultaneously, the needle can also serve as a temporary support structure, helping to stabilize the suture site and making the suturing process smoother.

[0094] In one embodiment of this application, the puncture suture assembly further includes a suture.

[0095] The suture is placed inside the needle tube and is configured to suture digestive tract tissue 400.

[0096] The suture can be a puncture needle or a suture post. For example... Figure 11 As shown, the suture post 500 includes at least two fixation posts 501 and a connecting line 502 connecting the two fixation posts 501. Depending on the specific surgical needs, multiple fixation posts 501 connected in series in the connecting line / suture 502 can be set to achieve continuous puncture suturing.

[0097] If the suture can be a puncture needle, after the needle tube passes through the digestive tract tissue 400, the suture, carrying the suture thread, passes back and forth through the needle tube to puncture the digestive tract tissue 400 to suture it. For example... Figure 12 and Figure 13 As shown, if the needle suture can be a suture post 500, after the needle passes through the digestive tract tissue 400, a fixing post 501 is pushed out of the needle. Then the needle is withdrawn. Since the fixing post 501 is limited by the digestive tract tissue 400, the suture post 500 is gradually pulled out of the needle during the withdrawal process until the next fixing post 501 comes out of the needle. The two fixing posts 501 are located on both sides of the digestive tract tissue 400 respectively. Then the connecting line 502 is pulled back so that the two fixing posts 501 suture the human digestive tract tissue 400 together.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An endoscopic gastrointestinal folding device for use in cooperation with an endoscope and an endoscopic accessory, characterized by, The endoscopic digestive tract folding device includes: An installation tube is provided with an observation window at one end, the observation window is located on the tube wall of the installation tube, and the installation tube has a through-hole configured for the endoscope and endoscope accessories to pass through. A deformable tube, one end of which is disposed at one end of the mounting tube, the deformable tube being configured to bend and deform. A clamping part is disposed at the other end of the deformable tube; and A control cable is connected to the clamping part, and the control cable is configured to control the clamping part to move toward the mounting tube so that the clamping part cooperates with the mounting tube to squeeze the digestive tract tissue.

2. The endoscopic digestive tract folding device according to claim 1, characterized in that, The deformable tube is a spring tube; or The deformable tube includes at least one connecting ring.

3. The endoscopic digestive tract folding device according to claim 2, characterized in that, When the deformable tube is a spring tube, the mounting tube, the deformable tube, and the clamping part are integrally formed into a single structure.

4. The endoscopic digestive tract folding device according to claim 1, characterized in that, It also includes: a guide structure, which is disposed at one end of the mounting tube, and the control cable passes around the guide structure and is connected to the clamping part.

5. The endoscopic digestive tract folding device according to claim 4, characterized in that, The guide structure is a fixed pulley, which is rotatably mounted on the mounting tube.

6. The endoscopic digestive tract folding device according to claim 1, characterized in that, It also includes: a control conduit connected to the mounting pipe, one end of the control cable passing through the control conduit and connected to the clamping part; or One end of the control cable passes through the channel of the mounting tube and connects to the clamping part.

7. The endoscopic digestive tract folding device according to claim 1, characterized in that, The number of control cables is two, and the two control cables are connected to two connecting parts symmetrically arranged on the clamping part.

8. The endoscopic digestive tract folding device according to claim 1, characterized in that, The installation tube has one or more parallel channels for the endoscope accessories to pass through.

9. The endoscopic digestive tract folding device according to claim 1, characterized in that, The clamping part is provided with a through hole, which is configured to allow the puncture needle of the suture device to pass through.

10. The endoscopic digestive tract folding device according to claim 9, characterized in that, The clamping part is provided with a receiving groove, which is configured to receive digestive tract tissue.

11. A puncture stapler assembly for use in conjunction with an endoscope, comprising: include: The endoscopic digestive tract folding device as described in any one of claims 1 to 10; as well as A suture device, wherein the puncture needle of the suture device is inserted into the working channel of the endoscope and extends to the end of the mounting tube, the suture device being configured to secure a suture to the digestive tract tissue.

12. The puncture suture assembly according to claim 11, characterized in that, The puncture needle is a needle tube configured to guide the suture through the digestive tract tissue.

13. The puncture suture assembly according to claim 12, characterized in that, It also includes: a suture, which is disposed inside the needle tube, and the suture includes a suture and a limiting structure.

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