Suturing device for digestive endoscopic surgery

Abstract

The present invention discloses a suturing device for digestive endoscopic surgery, belonging to the technical field of medical suturing instruments. The suturing device for digestive endoscopic surgery comprises: an operating handle, wherein a through groove is provided in the operating handle, and an opening is provided at the front end of the through groove; a spring tube is installed at the opening of the through groove; the present invention can firmly lock the suturing needle in the cross groove of the steel pipe, so that the suturing needle can move synchronously with the operating handle, improve the stability and efficiency of suturing, and can make the hook extend and retract freely, and can automatically clamp and lock the suturing needle at the same time. By making the front section of the suturing needle have multiple barbs and making the suture line fishbone-shaped design, it can have a limiting function, so when suturing, the suturing needle and the suture line will not slip off the stomach wall tissue, the stability is high, the difficulty of suturing is effectively reduced, and the work efficiency is improved, so that it is convenient for medical staff to better operate, and it is suitable for popularization and use.

Description

Technical Field

[0001] The invention relates to the technical field of medical suturing instruments, in particular to a suturing device for digestive endoscopic surgery. Background Art

[0002] Malignant tumors of the digestive tract are common and frequently occurring diseases of the digestive tract, which seriously threaten human life and health. As we enter an aging society, the detection rate of malignant tumors of the digestive tract is also increasing. For early-stage tumors of the digestive tract, minimally invasive treatment under endoscopy can be used to remove the tumor, which can achieve a radical effect.

[0003] Among all the suturing techniques for gastrointestinal perforation, surgical suturing is the most basic and reliable. It can achieve full-thickness suturing of the gastrointestinal wall, which is an important factor in tissue healing and preventing postoperative leakage of the digestive cavity. However, due to the limited space of the digestive endoscope channel, the number of instruments that can be placed in such a narrow space is very limited, so the above suturing technology is difficult to achieve.

[0004] In the 2019 Jiading District Science and Technology Commission project "Design of a New Suturing Instrument and Experimental Study on Colonoscopic Repair of Pig Large Intestine Perforation", it was proposed that perforation repair and suture can be completed under double-channel forceps or colonoscopic auxiliary sheath, but most hospitals do not have double-channel colonoscopes, colonoscopic auxiliary sheaths, and the suture needles and sutures do not have a limiting function during the operation. During suturing, the suture needles and sutures can easily slip off the gastric wall tissue, making suturing difficult, greatly affecting the operation process, and low work efficiency. For this reason, the needle holders and sutures need to be redesigned and improved. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the above-mentioned background technology and to propose a suturing device for digestive endoscopic surgery.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A suturing device for digestive endoscopic surgery comprises: an operating handle, wherein a through groove is provided in the operating handle, and an opening is provided at the front end of the through groove; a spring tube installed at the opening of the through groove; a steel tube fixedly connected to the end of the spring tube away from the operating handle, wherein a cross groove is provided at the front end of the steel tube, and an arc-shaped protrusion is provided between each two grooves in the cross groove, the steel tube and the spring tube are fixedly connected through a connecting base, a T-block is fixedly connected to the connecting base, an annular limiting groove is provided at the end of the steel tube away from the cross groove, and the connecting base and the steel tube are rotatably connected through the T-block; a hook is arranged in the steel tube; a driving retracting component is slidably connected in the through groove, wherein the retracting end of the driving retracting component penetrates the spring tube and the steel tube forward and is fixedly connected to the hook; a suturing needle with a plurality of barbs at the front section is clamped in the cross groove of the steel tube through the hook; a suture thread is connected to the tail end of the suture needle, wherein the suture thread is in the shape of a fish bone.

[0008] Preferably, the driving and pulling component includes a slide cylinder, a slider, a slip ring, a steel wire rope, and a tensioning spring. The slide cylinder is slidably connected to the operating handle, the slider is fixedly connected in the slide cylinder, and is slidably connected in the through groove of the operating handle, the slip ring is symmetrically fixedly connected to both sides of the slide cylinder, one end of the steel wire rope is fixedly connected to the slider, the other end of the steel wire rope passes through the spring tube and the steel tube, and is fixedly connected to the hook, and the two ends of the tensioning spring are respectively fixedly connected to the opening of the through groove and the slider, and are sleeved on the outside of the steel wire rope.

[0009] In order to increase the friction between the medical staff's hand and the end of the operating handle and the slip ring 202, further, an anti-slip sleeve is sleeved on the end of the operating handle away from the opening of the through slot and the slip ring.

[0010] In order to facilitate the connection between the suture needle and the suture thread, preferably, the tail end of the suture needle is fixedly connected to a connecting hollow tube, and one end of the suture thread is clamped in the connecting hollow tube.

[0011] In order to facilitate the taking and placing of the suture needle, preferably, the suture needle is made of superelastic nickel-titanium memory alloy wire.

[0012] In order to improve the applicability of the suture needle, further, the suture needle is flat in shape.

[0013] In order to avoid the need for suture removal, the suture is further made of polyglycolic acid polymer that can be absorbed by the human body.

[0014] In order to facilitate not only medical personnel to disassemble the device and clean its parts, but also to facilitate its storage, the operating handle is further connected to a tapered sleeve by a threaded rotation at a position near the opening of the through slot, the spring tube is fixedly connected to a hollow connecting tube at one end away from the steel tube, the hollow connecting tube and the tapered sleeve are connected by a threaded rotation, the end of the wire rope near the slider is fixedly connected to a connecting block, the end of the slider near the wire rope is provided with a screw hole, and the connecting block is connected to the screw hole of the slider by a threaded rotation.

[0015] In order to ensure the hygienic safety of the device, further, the steel wire rope, spring tube, steel tube, hook, conical sleeve, hollow connecting tube and connecting block are all made of metal materials that meet the medical and sanitary standards.

[0016] In order to improve the firmness between the steel wire rope and the hook, further, the steel wire rope and the hook are connected by welding.

[0017] Compared with the prior art, the present invention provides a suturing device for digestive endoscopic surgery, which has the following beneficial effects:

[0018] 1. The suturing device for digestive endoscopic surgery can effectively improve the stability of the suturing needle by making the curved hook firmly lock the suturing needle in the cross groove of the steel pipe, so that when the medical staff rotates and moves the operating handle, the suturing needle can be rotated and moved synchronously, thereby facilitating the medical staff to better operate the suturing needle for suturing, improving the stability and efficiency of suturing, and having high practicality;

[0019] 2. The suturing device for digestive endoscopic surgery can freely extend and retract the hook by driving the retracting component, and can automatically clamp and lock the suturing needle, thereby increasing the locking firmness and facilitating operation, thus overcoming the inconvenience of operation in the prior art.

[0020] 3. The suturing device for digestive endoscopic surgery has a limiting function by designing the front section of the suturing needle with multiple barbs and the suture thread to be in the shape of a fishbone. Therefore, when suturing, the suturing needle and the suture thread will not slip off the stomach wall tissue, and the stability is high, which effectively reduces the difficulty of suturing and improves work efficiency.

[0021] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can firmly lock the suture needle in the cross groove of the steel pipe so that the suture needle can move synchronously with the operating handle, thereby facilitating the medical staff to better operate the suture needle for suture operation, improving the stability and efficiency of suture, and during operation, the curved hook can be extended and retracted freely, and the suture needle can be automatically clamped and locked, which is convenient for operation and overcomes the defects of inconvenient operation in the prior art. By making the front section of the suture needle have multiple barbs and making the suture thread into a fishbone-shaped design, it can be made to have a limiting function. Therefore, when suturing, the suture needle and the suture thread will not slip off the gastric wall tissue, and the stability is relatively high, which effectively reduces the difficulty of suturing and improves work efficiency, thereby facilitating medical staff to better operate and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of the suturing device for digestive endoscopic surgery provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the suturing device for digestive endoscopic surgery proposed by the present invention;

[0024] Figure 3 An exploded view of the connection base, T-block, steel pipe and cross groove in the suturing device for digestive endoscopic surgery proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the suture thread, suture needle, and connecting hollow tube in the suture device for digestive endoscopic surgery proposed by the present invention;

[0026] Figure 5 Suturing device for digestive endoscopic surgery proposed by the present invention Figure 2 The structural diagram of part A in the figure;

[0027] Figure 6 Suturing device for digestive endoscopic surgery proposed by the present invention Figure 2 The structural diagram of part B;

[0028] Figure 7 Suturing device for digestive endoscopic surgery proposed by the present invention Figure 2 Schematic diagram of the structure of part C;

[0029] Figure 8 Suturing device for digestive endoscopic surgery proposed by the present invention Figure 4 The structural diagram of the D part;

[0030] Fig. 9 This is a schematic diagram of the structure of the slide cylinder, the slider and the slide ring in the suturing device for digestive endoscopic surgery proposed by the present invention.

[0031] In the figure: 1. operating handle; 101. through groove; 2. slide cylinder; 201. slider; 202. slip ring; 3. anti-slip sleeve; 4. conical sleeve; 5. tension spring; 6. steel wire rope; 7. spring tube; 8. suture needle; 9. suture thread; 10. steel pipe; 1001. connecting base; 1002. T-block; 1003. cross groove; 11. hook; 12. connecting block; 13. hollow connecting tube; 14. connecting hollow tube. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Embodiment 1:

[0035] Reference Figure 1-Figure 9 The suturing device for digestive endoscopic surgery comprises: an operating handle 1, wherein a through groove 101 is provided in the operating handle 1, and an opening is provided at the front end of the through groove 101; a spring tube 7 is installed at the opening of the through groove 101; a steel tube 10 is fixedly connected to the end of the spring tube 7 away from the operating handle 1, wherein a cross groove 1003 is provided at the front end of the steel tube 10, and an arc-shaped protrusion is provided between each two grooves in the cross groove 1003, and the steel tube 10 is fixedly connected to the spring tube 7 through a connecting base 1001, and a T-block 1002 is fixedly connected to the connecting base 1001, and the steel tube 10 is away from the cross groove 1003. One end of 3 is provided with an annular limiting groove, and the connecting base 1001 and the steel pipe 10 are rotatably connected through a T-block 1002; a hook 11 is arranged in the steel pipe 10; a driving and pulling component is slidably connected in the through groove 101, wherein the pulling end of the driving and pulling component passes through the spring tube 7 and the steel pipe 10 forward and is fixedly connected with the hook 11; a suture needle 8 with a plurality of barbs at the front section is clamped in the cross groove 1003 of the steel pipe 10 through the hook 11; a suture thread 9 is connected to the tail end of the suture needle 8, wherein the suture thread 9 is in the shape of a fishbone.

[0036] The driving and pulling components include a slide cylinder 2, a slider 201, a slip ring 202, a steel wire rope 6, and a tensioning spring 5. The slide cylinder 2 is slidably connected to the operating handle 1, the slider 201 is fixedly connected in the slide cylinder 2, and is slidably connected in the through groove 101 of the operating handle 1, the slip ring 202 is symmetrically fixedly connected to both sides of the slide cylinder 2, one end of the steel wire rope 6 is fixedly connected to the slider 201, and the other end of the steel wire rope 6 passes through the spring tube 7 and the steel tube 10, and is fixedly connected to the hook 11, and the two ends of the tensioning spring 5 are respectively fixedly connected to the opening of the through groove 101 and the slider 201, and are sleeved on the outside of the steel wire rope 6.

[0037] When in use, the medical staff first takes the device to the operating table, then sends the gastroscope into the gastric cavity, and then fixes the suture thread 9 to the tail end of the suture needle 8, and then sends the suture needle 8 and the suture thread 9 into the gastric cavity where the wound needs to be sutured through the suture needle releasing and recovering device. The suture needle releasing and recovering device is a well-known technology, and the suture needle 8 and the suture thread 9 are sent into the gastric cavity where the wound needs to be sutured by the method and equipment in the prior art. When the suture needle 8 and the suture thread 9 are checked through the gastroscope to have moved to the specified position, Then, the suture needle 8 and the suture thread 9 are released through the suture needle release and recovery device, and then the suture needle release and recovery device is taken out, and then the suture device is taken out, and then the medical staff slowly inserts the spring tube 7 into the gastric cavity along the gastroscope channel through the operating handle 1. When the spring tube 7 appears in the field of view of the gastroscope, the spring tube 7 is controlled to move toward the position of the suture needle 8 through the operating handle 1, and then the medical staff controls the slide tube 2 to move to the front end through the slip ring 202, and the slide tube 2 overcomes the elastic force of the tension spring 5 through the slider 201 to drive the wire rope 6 to move forward, so that the hook 11 moves out The medical staff then controls the hook 11 through the operating handle 1 to fine-tune the position so that it hooks the tail section of the suture needle 8, and then releases the slip ring 202. At this time, the slider 201 will automatically move back under the action of the retraction elasticity of the tensioning spring 5, and then the wire rope 6 will pull the suture needle 8 into the cross groove 1003 of the steel pipe 10 through the hook 11. Among them, an arc-shaped protrusion is provided between each two grooves in the cross groove 1003, and the steel pipe 10 and the connecting base 1001 are rotatably connected through the T-block 1002, so the steel pipe 10 can rotate freely around the connecting base 1001. When the curved hook 11 pulls the suture needle 8 and the suture needle 8 is just stuck between the two grooves, as the steel wire 6 pulls back the curved hook 11, the suture needle 8 will be easily pulled into the groove along the inclined surface of the arc-shaped protrusion, so that the curved hook 11 will firmly lock the suture needle 8 in the cross groove 1003 of the steel pipe 10, effectively improving the stability of the suture needle 8, so that when the medical staff rotates and moves the operating handle 1, the suture needle 8 can be rotated and moved synchronously, so that it is convenient for the medical staff to better operate the suture needle 8 to perform suture operations, improve the stability and efficiency of suture, and have high practicality. Then the medical staff sutures the part to be sutured by controlling the operating handle 1. When the forward needle is poked, the curved hook 11 needs to hook the front part of the suture needle 8 again. When the needle is hooked back, since the front part of the suture needle 8 has barbs, when the hook head of the curved hook 11 is unhooked from the suture needle 8, the suture needle 8 will not retract. When the suture needle 8 is pulled out, the suture is tightened, and the needle is inserted again, because the suture line 9 is in the shape of a fishbone, it has a limiting effect, so the stomach wall tissue will not slip during suturing, which is highly practical, effectively reduces the difficulty of suturing, and improves work efficiency.When the suturing is completed, the device is removed from the stomach cavity, and finally the suture needle 8 is taken out through the needle remover to complete the entire suturing work. The hook 11 firmly locks the suture needle 8 in the cross groove 1003 of the steel pipe 10, which effectively improves the stability of the suture needle 8, so that when the medical staff rotates and moves the operating handle 1, the suture needle 8 can be rotated and moved synchronously, so that the medical staff can better operate the suture needle 8 for suturing, improve the stability and efficiency of suturing, and have high practicality. By driving the setting of the retracting component, the hook 11 can be extended and recovered freely, and the suture needle 8 can be automatically clamped and locked at the same time, increasing the locking firmness, convenient operation, and overcoming the defects of the inconvenient operation in the prior art. By making the front section of the suture needle 8 have multiple barbs and the suture line 9 is designed to be fishbone-shaped, it can have a limiting function. Therefore, when suturing, the suture needle 8 and the suture line 9 will not slip off the stomach wall tissue, and the stability is high, which effectively reduces the difficulty of suturing and improves the work efficiency, so that it is convenient for medical staff to better operate and is suitable for promotion and use.

[0038] Embodiment 2:

[0039] Reference Figure 1-Figure 9 The suturing device for digestive endoscopic surgery is basically the same as that of Example 1, and further, an anti-slip sleeve 3 is sleeved on the end of the operating handle 1 away from the opening of the through groove 101 and the slip ring 202. By sleeved on the end of the operating handle 1 away from the opening of the through groove 101 and the slip ring 202, when the medical staff holds the device for suturing, the friction between the medical staff's hand and the end of the operating handle 1 and the slip ring 202 can be increased, thereby improving the stability of the medical staff holding the device when working.

[0040] Embodiment 3:

[0041] Reference Figure 1-Figure 9 The suturing device for digestive endoscopic surgery is basically the same as that of Example 1, and further, the tail end of the suture needle 8 is fixedly connected with a connecting hollow tube 14, and one end of the suture thread 9 is clamped in the connecting hollow tube 14, wherein the connecting hollow tube 14 can be made of a metal material with lower hardness, so that after one end of the suture thread 9 is placed in the connecting hollow tube 14, a pliers can be used to clamp the tube wall of the connecting hollow tube 14 to compress it into a flat shape, so as to fix the suture thread 9 to the needle tail of the suture needle 8, improve its stability, and after the suturing is completed, it is also easy to separate it, which provides convenience for medical staff to operate;

[0042] The suture needle 8 is made of superelastic nickel-titanium memory alloy wire. By making the suture needle 8 made of superelastic nickel-titanium memory alloy wire, the suture needle 8 in the device can be conveniently passed through the release tube, does not deform, has good elasticity, and has moderate hardness, thus overcoming the problems of high hardness, poor elasticity, difficulty in passing through the release tube, and being pushed out of the release tube to become straight, making it impossible to perform suture operations, and having high practicality;

[0043] The suture thread 9 is made of polyglycolic acid polymer absorbable by the human body. By making the suture thread 9 made of polyglycolic acid polymer absorbable by the human body, foreign body reaction is reduced.

[0044] Embodiment 4:

[0045] Reference Figure 1-Figure 9 The suturing device for digestive endoscopic surgery is basically the same as that of Example 1, and furthermore, the operating handle 1 is connected to a tapered sleeve 4 by a threaded rotation at a position near the opening of the through groove 101, the end of the spring tube 7 away from the steel pipe 10 is fixedly connected to a hollow connecting tube 13, the hollow connecting tube 13 and the tapered sleeve 4 are connected by a threaded rotation, the end of the wire rope 6 near the slider 201 is fixedly connected to a connecting block 12, the end of the slider 201 near the wire rope 6 is provided with a screw hole, the connecting block 12 is connected to the screw hole of the slider 201 by a threaded rotation, and the arrangement of the tapered sleeve 4, the hollow connecting tube 13, and the connecting block 12 facilitates the rapid disassembly and assembly of the device, which is not only convenient for medical staff to disassemble the device for cleaning its parts, but also convenient for storage, effectively improving the practicality of the device;

[0046] The steel wire rope 6, the spring tube 7, the steel tube 10, the hook 11, the conical sleeve 4, the hollow connecting tube 13, the connecting block 12, the slider 201, and the suture needle 8 are all made of metal materials that meet the medical and health standards. The steel wire rope 6, the spring tube 7, the steel tube 10, the hook 11, the conical sleeve 4, the hollow connecting tube 13, the connecting block 12, the slider 201, and the suture needle 8 are all made of metal materials that meet the medical and health standards.

[0047] The steel wire rope 6 and the hook 11 are connected by welding. By welding the steel wire rope 6 and the hook 11, the firmness of the connection between the steel wire rope 6 and the hook 11 can be improved, and the connection between the steel wire rope 6 and the hook 11 can be prevented from breaking after long-term use, thereby affecting the accuracy and efficiency of suturing, thereby effectively improving the practicality of the device.

[0048] The present invention enables the curved hook 11 to firmly lock the suture needle 8 in the cross groove 1003 of the steel pipe 10, thereby effectively improving the stability of the suture needle 8, so that when the medical staff rotates and moves the operating handle 1, the suture needle 8 can be rotated and moved synchronously, thereby facilitating the medical staff to better operate the suture needle 8 for suturing operations, improving the stability and efficiency of suturing, and having high practicality. By driving the setting of the retracting component, the curved hook 11 can be extended and retracted freely, and at the same time, the suture needle 8 can be automatically clamped and locked, thereby increasing the locking firmness and being easy to operate, overcoming the defects of the inconvenient operation in the prior art. By providing the front section of the suture needle 8 with multiple barbs and the suture thread 9 being designed in the shape of a fishbone, the suture needle 8 can have a limiting function, so that when suturing, the suture needle 8 and the suture thread 9 will not slip off the gastric wall tissue, having high stability, effectively reducing the difficulty of suturing, and improving work efficiency, thereby facilitating the medical staff to better operate, and being suitable for popularization and use.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suturing device for digestive endoscopic surgery, characterized in that: include: Operating handle (1), Wherein, a through slot (101) is provided in the operating handle (1), and an opening is provided at the front end of the through slot (101); A spring tube (7) is installed at the opening of the through groove (101); The steel tube (10) is fixedly connected to the end of the spring tube (7) away from the operating handle (1). The front end of the steel pipe (10) is provided with a cross groove (1003), and an arc-shaped protrusion is provided between each two grooves in the cross groove (1003). The steel pipe (10) and the spring tube (7) are fixedly connected via a connecting base (1001), and a T-block (1002) is fixedly connected to the connecting base (1001). An annular limiting groove is provided at one end of the steel pipe (10) away from the cross groove (1003), and the connecting base (1001) and the steel pipe (10) are rotatably connected via the T-block (1002); A hook (11) is arranged in the steel pipe (10); The driving and pulling component is slidably connected in the through slot (101), The retracting end of the driving retracting component penetrates the spring tube (7) and the steel tube (10) forward and is fixedly connected to the hook (11); The front section of the suture needle (8) has a plurality of barbs, which is clamped into the cross groove (1003) of the steel pipe (10) through the curved hook (11); A suture thread (9) is connected to the tail end of the suture needle (8). Wherein, the suture (9) is in the shape of a herringbone; The driving and pulling component comprises a slide cylinder (2), a slider (201), a slip ring (202), a steel wire rope (6), and a tensioning spring (5); the slide cylinder (2) is slidably connected to the operating handle (1); the slider (201) is fixedly connected in the slide cylinder (2) and slidably connected in the through groove (101) of the operating handle (1); the slip ring (202) is symmetrically fixedly connected to both sides of the slide cylinder (2); one end of the steel wire rope (6) is fixedly connected to the slider (201); the other end of the steel wire rope (6) passes through the spring tube (7) and the steel tube (10) and is fixedly connected to the hook (11); the two ends of the tensioning spring (5) are respectively fixedly connected to the opening of the through groove (101) and the slider (201), and are sleeved on the outside of the steel wire rope (6).

2. The suturing device for digestive endoscopic surgery according to claim 1, characterized in that: An anti-slip sleeve (3) is sleeved on the end of the operating handle (1) away from the opening of the through slot (101) and the slip ring (202).

3. The suturing device for digestive endoscopic surgery according to claim 1, characterized in that: The tail end of the suture needle (8) is fixedly connected to a connecting hollow tube (14), and one end of the suture thread (9) is clamped in the connecting hollow tube (14).

4. The suturing device for digestive endoscopic surgery according to claim 1, characterized in that: The suturing needle (8) is made of superelastic nickel-titanium memory alloy wire.

5. The suturing device for digestive endoscopic surgery according to claim 4, characterized in that: The suture needle (8) is flat in shape.

6. The suturing device for digestive endoscopic surgery according to claim 5, characterized in that: The suture thread (9) is made of polyglycolic acid polymer that can be absorbed by the human body.

7. The suturing device for digestive endoscopic surgery according to claim 1, characterized in that: The operating handle (1) is connected to a conical sleeve (4) by means of a threaded rotation at a position close to the opening of the through groove (101); the end of the spring tube (7) away from the steel tube (10) is fixedly connected to a hollow connecting tube (13); the hollow connecting tube (13) and the conical sleeve (4) are connected by means of a threaded rotation; the end of the steel wire rope (6) close to the slider (201) is fixedly connected to a connecting block (12); the end of the slider (201) close to the steel wire rope (6) is provided with a screw hole; the connecting block (12) is connected to the screw hole of the slider (201) by means of a threaded rotation.

8. The suturing device for digestive endoscopic surgery according to claim 7, characterized in that: The steel wire rope (6), spring tube (7), steel tube (10), hook (11), conical sleeve (4), hollow connecting tube (13), connecting block (12), slider (201), and suture needle (8) are all made of stainless steel that meets medical and sanitary standards.

9. The suturing device for digestive endoscopic surgery according to claim 7, characterized in that: The steel wire rope (6) and the hook (11) are connected by welding.

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