Gasket for endoscopic surgery
Endoscopic surgical pads address the issues of slow healing and infection of gastric mucosal ulcers through a memory metal wire skeleton and a sustained-release coating, achieving suture fixation and continuous protection.
Patent Information
- Application Number
- CN202422703218.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing gastric mucosa ulcers heal slowly and are prone to infection in the acidic environment of the stomach. Ordinary pads cannot prevent sutures from cutting into internal organs.
An endoscopic surgical pad has been designed, including a delivery system and a pad system. The pad is fixed to the long and short arms of the fixator by a woven skeleton pad made of shape memory metal wire and coated with a slow-release hemostatic and antibiotic coating to reduce the risk of suture cutting and infection.
It effectively reduces the cutting of the gastric mucosa by sutures, promotes wound healing, prevents infection, and provides continuous hemostasis and anti-infection protection through a slow-release coating.
Smart Images
Figure CN223653861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an endoscopic surgical pad. Background Technology
[0002] Percutaneous endoscopic gastrostomy (PEG) is a surgical procedure performed under endoscopic guidance, involving the placement of a gastrostomy tube through a percutaneous puncture in the abdomen. It can meet the nutritional needs of patients experiencing difficulty swallowing or eating due to various reasons. During PEG, the stomach and abdominal walls are sutured and fixed 1 cm to the left and right of the puncture site, with the assistance of a gastric wall fixator. The ligation must be done with moderate force; too loose a ligation can lead to relative tissue displacement, while too tight a ligation can cause chronic cutting action of the sutures, resulting in gastric mucosal ulcers. More seriously, the gastric mucosa is constantly immersed in the acidic environment of the stomach, leading to slow healing of ulcers and a high risk of secondary infection. Ordinary gaskets can only be used on the body surface and cannot prevent the cutting action of sutures on internal organs. Therefore, it is necessary to design a gasket that can be used in endoscopic surgery.
[0003] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0004] The purpose of this invention is to solve the above-mentioned problems by designing an endoscopic surgical pad. This invention addresses the issues that existing gastric mucosa is constantly immersed in the gastric acid environment, resulting in slow ulcer healing and a high risk of secondary infection. Ordinary pads can only be applied to the body surface and cannot prevent the cutting effect of sutures on internal organs.
[0005] The technical solution of this utility model to achieve the above objectives is as follows: an endoscopic surgical pad, including a delivery system and a pad system, wherein the pad system is connected to one end of the delivery system, the delivery system includes a pusher, a handle, a delivery tube, and a connecting ring, and the pad system includes a pad, a long curved arm of a fixator, a short arm of a fixator, a pad limiting tube, and a pad limiting ring.
[0006] The handle is fixedly connected to the delivery tube and together they are fitted onto the outside of the pusher, wherein the handle is fitted onto the inlet side of the pusher and the delivery tube is fitted onto the anal side of the pusher.
[0007] The connecting ring is movably fitted inside the anal end of the delivery pipe, and the connecting ring is movably fitted inside the long curved arm of the fixer.
[0008] The long curved arm of the fixture is fixedly connected to the gasket, the short arm of the fixture is sleeved inside the long curved arm of the fixture, the gasket limiting tube is sleeved outside the conveying pipe, and the gasket limiting tube is fixedly connected to the gasket limiting ring.
[0009] Preferably, the pusher consists of a thumb ring, a push bar, a push rod, and a push block. The diameter of the push rod is smaller than that of the push bar and the push block. The thumb ring, push bar, push rod, and push block are sequentially and fixedly connected.
[0010] Preferably, the handle has handle rings on both sides, a push bar limiting groove in the middle of the handle that matches the diameter of the push bar, and a push bar channel at the front end of the handle that communicates with the push bar limiting groove and whose diameter matches the push bar.
[0011] Preferably, the conveying pipe is fixedly connected to the handle, and the outer wall of the conveying pipe is provided with a gasket limiting ring buckle for fixing the gasket limiting ring. The inner side wall of the inner head end of the conveying pipe is provided with a second limiting ring. The second limiting ring is a beveled ring that matches the shape of the first tenon. The second limiting ring is at a right angle to the wall of the conveying pipe.
[0012] Preferably, the connecting ring has a protruding first tenon and a second tenon on its outside. The first tenon is at an obtuse angle to the outer wall of the connecting ring and is adapted to the inclined surface shape of the first limiting ring and the second limiting ring. The second tenon is at a right angle to the outer wall of the connecting ring. The connecting ring has a push block separation groove adapted to the size of the push block and a push rod channel adapted to the diameter of the push rod inside the ring. The push block separation groove and the push rod channel are connected.
[0013] Preferably, the gasket is made of a memory metal wire woven skeleton. The gasket is gathered in the gasket limiting tube. The head end of the long curved arm of the fixer is J-shaped and fixedly connected to the gasket. The front end of the J-shaped arm is provided with a long curved arm toothed comb. The main body of the long curved arm of the fixer is cylindrical. The inner wall of the cylindrical arm is provided with a long curved arm limiting protrusion. The tail end of the cylindrical inner arm is provided with a first limiting ring. The first limiting ring is obtuse at the inner wall of the long curved arm of the fixer and is adapted to the shape of the first tenon. The head end of the short arm of the fixer is I-shaped and the top end is provided with a short arm toothed comb. The shape of the short arm toothed comb is adapted to the long curved arm toothed comb. The short arm of the fixer is cylindrical. The outer side of the cylindrical wall is provided with inwardly recessed slide rails on both sides. The slide rails are provided with inwardly recessed small dots called short arm limiting grooves. The opening below the short arm of the fixer is a hollow groove, which is a short arm pushing groove and is adapted to the shape of the pushing block.
[0014] Preferably, the short arm of the retainer is fitted inside the long curved arm of the retainer, the limiting protrusion of the long curved arm is located inside the slide rail, and the shim limiting ring and the shim limiting ring are connected by a buckle.
[0015] Preferably, the short arm of the fixation device is equipped with a wireless GPS positioning system.
[0016] Preferably, the pad has anti-slip grooves or anti-slip particles.
[0017] Preferably, the gasket is coated with a sustained-release hemostatic coating and a sustained-release antibiotic coating.
[0018] Beneficial effects
[0019] An endoscopic surgical pad manufactured using the technical solution of this utility model is delivered into the body through the endoscopic biopsy channel via a set delivery and installation structure. It is placed between the sutures and internal organs, reducing the cutting effect of the sutures on the internal organs and preventing ulcers caused by suture cutting. The short-arm comb and the long-arm comb interlock with each other to fix the surgical sutures and prevent them from dislodging. The pad is coated with a slow-release hemostatic coating and a slow-release antibiotic coating, which helps to stop bleeding and prevent infection of the wound and stoma, promoting wound healing at the suture site. The pad also has anti-slip grooves or anti-slip particles to facilitate the fixation of the surgical sutures and prevent slippage. Attached Figure Description
[0020] Figure 1 This is a frontal three-dimensional structural diagram of an endoscopic surgical pad according to the present invention.
[0021] Figure 2 This is a cross-sectional view of the endoscopic surgical pad of the present invention in its contracted state.
[0022] Figure 3 This is a cross-sectional view of the unfolded state of the endoscopic surgical pad described in this utility model.
[0023] Figure 4 This is a cross-sectional view of the endoscopic surgical pad of the present invention after its release.
[0024] Figure 5 This is a schematic diagram of the delivery system for an endoscopic surgical pad according to the present invention.
[0025] Figure 6 This is a three-dimensional structural diagram of the connecting ring of the endoscopic surgical pad described in this utility model.
[0026] Figure 7 This is a three-dimensional structural diagram of the short arm of the fixation device for an endoscopic surgical pad according to the present invention.
[0027] Figure 8 This is a three-dimensional structural diagram of the long curved arm of the fixation device for an endoscopic surgical pad according to the present invention.
[0028] Figure 9 This is a schematic diagram of the unfolded structure of the endoscopic surgical pad described in this utility model.
[0029] Figure 10 This is an enlarged structural diagram of section "A" of the endoscopic surgical pad described in this utility model.
[0030] Figure 11 This is an enlarged structural diagram of section "B" of the endoscopic surgical pad described in this utility model.
[0031] Figure 12 This is a schematic diagram of the endoscopic surgical pad of the present invention in its unfolded state within the gastric cavity.
[0032] Figure 13 This is a schematic diagram illustrating the operation steps of the endoscopic surgical pad described in this utility model.
[0033] In the diagram: 1. Pusher, 2. Handle, 3. Conveying pipe, 4. Connecting ring, 5. Gasket, 6. Long curved arm of retainer, 7. Short arm of retainer, 8. Gasket limiting tube, 9. Gasket limiting ring, 10. Thumb ring, 11. Pushing bar, 12. Pushing rod, 13. Pushing block, 14. Handle finger ring, 15. Pushing bar limiting groove, 16. Gasket limiting ring buckle, 17. Second limiting ring, 18. First tenon, 19. Second tenon, 20. Pushing block separation groove, 21. Pushing rod channel, 22. Long curved arm comb, 23. Long curved arm limiting protrusion, 24. First limiting ring, 25. Short arm comb, 26. Slide rail, 27. Short arm limiting groove, 28. Short arm pushing groove. Detailed Implementation
[0034] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0035] In the description of this utility model, it should be understood that, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-13 As shown, an endoscopic surgical pad includes a delivery system and a pad system. The pad system is connected to one end of the delivery system. The delivery system includes a pusher 1, a handle 2, a delivery tube 3, and a connecting ring 4. The pad system includes a pad 5, a long curved arm of a fixator 6, a short arm of a fixator 7, a pad limiting tube 8, and a pad limiting ring 9.
[0038] The handle 2 is fixedly connected to the delivery tube 3 and together they are fitted onto the outside of the pusher 1, wherein the handle 2 is fitted onto the inlet side of the pusher 1 and the delivery tube 3 is fitted onto the anal side of the pusher 1.
[0039] The connecting ring 4 is movably fitted inside the anal end of the delivery pipe 3, and the anal end of the connecting ring 4 is movably fitted inside the long curved arm 6 of the fixer.
[0040] The long curved arm 6 of the fixture is fixedly connected to the gasket 5, the short arm 7 of the fixture is sleeved inside the long curved arm 6, the gasket limiting tube 8 is sleeved outside the conveying pipe 3, and the gasket limiting tube 8 is fixedly connected to the gasket limiting ring 9.
[0041] Please see the appendix Figure 2 , 3 As shown in Figure 5, the pusher 1 is composed of a thumb ring 10, a push bar 11, a push rod 12, and a push block 13. The diameter of the push rod 12 is smaller than that of the push bar 11 and the push block 13. The thumb ring 10, the push bar 11, the push rod 12, and the push block 13 are fixedly connected in sequence.
[0042] Please see the appendix Figure 1 , 2 As shown in Figures 3 and 9, the handle 2 has handle rings 14 on both sides, a push bar limiting groove 15 in the middle of the handle 2 that matches the diameter of the push bar 11, and a push bar hole 21 at the front end of the handle 2 that communicates with the push bar limiting groove 15 and whose diameter matches the push bar 12.
[0043] Please see the appendix Figure 1 , 2 As shown in Figures 3 and 9, the conveying pipe 3 is fixedly connected to the handle 2. The outer wall of the conveying pipe 3 is provided with a gasket limiting ring buckle 16 for fixing the gasket limiting ring 9. The inner side wall of the inner head end of the conveying pipe 3 is provided with a second limiting ring 17. The second limiting ring 17 is a beveled ring shape that matches the shape of the first tenon 18. The second limiting ring 17 is at a right angle to the wall of the conveying pipe 3.
[0044] Please see the appendix Figure 2 , 4 As shown in Figures 6 and 10, the connecting ring 4 has a protruding first tenon 18 and a second tenon 19 on its outside. The first tenon 18 is at an obtuse angle to the outer wall of the connecting ring 4 and is adapted to the inclined shape of the first limiting ring 24 and the second limiting ring 17. The second tenon 19 is at a right angle to the outer wall of the connecting ring 4. The connecting ring 4 has a push block separation groove 20 adapted to the size of the push block 13 and a push rod channel 21 adapted to the diameter of the push rod 12 inside the ring. The push block separation groove 20 and the push rod channel 21 are connected.
[0045] Please see the appendix Figure 3 , 4As shown in Figures 7, 8, and 11, the gasket 5 is made of a skeleton woven from memory metal wire, with an outer gasket film. The gasket film has moderate softness and hardness and a non-slip surface. The gasket 5 is folded into the gasket limiting tube 8. The end of the long curved arm 6 of the retainer is J-shaped and fixedly connected to the gasket 5. The front end of the J-shaped arm is provided with a long curved arm comb 22. The main body of the long curved arm 6 of the retainer is cylindrical, and the inner wall of the cylindrical body is provided with a long curved arm limiting protrusion 23. The tail end of the cylindrical inner arm is provided with a first limiting ring 24. The first limiting ring 24 forms an obtuse angle with the inner wall of the long curved arm 6 of the retainer and is shaped with the first tenon 18. The short arm 7 of the fixture is I-shaped at the head and has a short arm comb 25 at the top. The short arm comb 25 is adapted to the shape of the long curved arm comb 22. The short arm 7 of the fixture is cylindrical. The outer side of the cylindrical wall has inwardly recessed slide rails 26 on both sides. The slide rails 26 have inwardly recessed small dots called short arm limiting grooves 27. The short arm 7 of the fixture is fitted inside the long curved arm 6 of the fixture. The long curved arm limiting protrusion 23 is located inside the slide rail 26. The opening at the bottom of the short arm 7 is a hollow groove called the short arm pushing groove 28, which is adapted to the shape of the pushing block 13.
[0046] Please see the appendix Figure 1 , 2 As shown, the gasket limiting ring 9 and the gasket limiting ring buckle 16 are connected by a buckle.
[0047] The short arm 7 of the fixation device is equipped with a wireless GPS positioning system.
[0048] Please see the appendix Figure 3 , 4 As shown in Figures 8 and 9, the pad 5 has anti-slip grooves or anti-slip particles.
[0049] Please see the appendix Figure 3 , 4 As shown in Figures 8 and 9, the gasket 5 is coated with a sustained-release hemostatic coating and a sustained-release antibiotic coating.
[0050] The procedure for applying endoscopic surgical pads includes the following steps:
[0051] Step 1. The retracted state of the endoscopic surgical pad: The endoscopic surgical pad must be kept in the retracted state before use.
[0052] ① Please refer to the appendix Figure 1 , 2 The gasket limiting ring 9 and the gasket limiting ring buckle 16 are fixed by the buckle structure, so that the gasket limiting tube 8 is sleeved on the outside of the gasket 5, and the gasket 5 is kept in a contracted state.
[0053] ②Please refer to the appendix Figure 2 , 610. The conveying pipe 3 and the long curved arm 6 of the fixture are connected by a connecting ring 4. The first tenon 18 on the connecting ring 4 is inserted into the first limiting ring 24 at the tail of the long curved arm 6 of the fixture, and the second tenon 19 on the connecting ring 4 is inserted into the second limiting ring 17 at the head of the conveying pipe 3. In this way, the connection between the conveying pipe 3 and the long curved arm 6 of the fixture is completed.
[0054] ③ Please refer to the appendix Figure 2 The short arm 7 of the retainer is fitted inside the long curved arm 6 of the retainer. The long curved arm comb 22 and the short arm comb 25 are in an open state. The push block 13 is located in the push groove 28 of the short arm.
[0055] Step 2. Deployment of the endoscopic surgical pad: After the endoscopic surgical pad is delivered into the body cavity through the endoscopic biopsy channel, it must first be deployed within the body cavity:
[0056] Please see the appendix Figure 3 , 9 Open the gasket limiting buckle 16 to separate the gasket limiting ring 9 from the gasket limiting ring buckle. Pull the gasket limiting tube 8 backward to unfold the gasket 5. Since the gasket 5 is a memory metal wire braided skeleton, when the gasket limiting tube 8 is pulled backward to expose the gasket 5, the gasket 5 automatically unfolds into a sheet shape.
[0057] Step 3. Fixing the endoscopic surgical pad: Secure the unfolded pad to the surgical sutures.
[0058] Please see the appendix Figure 3 , 5 7, 8, 9, 11, 12, 13: Hang the long curved arm 6 of the fixator on the surgical suture, push the pusher 1 forward, so that the short arm 7 of the fixator slides forward within the long curved arm 6 of the fixator, and completes the engagement of the long curved arm comb 22 and the short arm comb 25, so that the endoscopic surgical pad is placed between the surgical suture and the human tissue and is fixed. During this process, push the thumb ring 10 forward, and push the pusher 11 forward to the top of the pusher limit groove 15. At this time, the pusher block 13 pushes the short arm 7 of the fixator forward, and the long curved arm limit protrusion 23 slides within the slide rail 26 and slides into the short arm limit groove 27, so that the short arm 7 of the fixator and the long curved arm 6 of the fixator are fixed in position.
[0059] Step 4. Release of the endoscopic surgical pad: After the endoscopic surgical pad is secured, the delivery system and the pad system need to be separated and released.
[0060] Please see the appendix Figure 4 , 5 6. Pull the thumb ring 10 backward to push the push block 13 into the push block separation groove 20, and continue to pull backward to disengage the first tenon 18 from the first limiting ring 24, thereby completing the release of the delivery system and the pad system, leaving the pad system in the body cavity, and withdrawing the delivery system through the biopsy channel of the endoscope.
[0061] Example: Please refer to the appendix. Figure 1-13 As shown, during the percutaneous endoscopic gastrostomy, the physician first passes the surgical suture through the abdominal wall to the stomach cavity via the gastric wall fixator in the gastrostomy kit, leaving a loose semi-circular surgical suture in the stomach cavity. The physician then sends the endoscopic surgical pad 5 into the stomach cavity along the endoscopic biopsy channel. The nurse inserts her right thumb into the thumb ring 10 and her right index and middle fingers into the handle finger rings 14 on both sides of the handle 2 to fix the handle 2. She opens the pad limiting ring buckle 16, causing the pad limiting ring 9 to separate from the pad limiting ring buckle 16. Pulling the pad limiting ring 9 backward moves the pad limiting tube 8 backward, and the pad 5 disengages from the pad limiting tube 8, completing the release of the endoscopic surgical pad 5.
[0062] The physician adjusts the endoscope so that the exposed long curved arm 6 of the fixator is hooked onto the semi-circular surgical suture. The thumb ring 10 is pushed forward so that the pusher block 13 enters the short arm pusher groove 28, pushing the short arm 7 of the fixator to slide along the slide rail 26. The long curved arm limiting protrusion 23 just slides into the short arm limiting groove 27, and the long curved arm comb 22 just bites into the short arm comb 25. The short arm 7 of the fixator and the long curved arm 6 of the fixator form a closed ring, completing the fixation of the endoscopic surgical pad 5.
[0063] The endoscopic surgical pad 5 is then fixed to the surgical suture. Physician 1 tightens the suture externally, while Physician 2, using the endoscope, adjusts the endoscopic surgical pad 5 to the desired position. Physician 1 externally ties the suture in place. The nurse pulls the thumb ring 10 backward, causing the pusher block 13 to retract to the pusher block separation groove 20. Further pulling causes the first tenon 18 to disengage from the first limiting ring 24 and retract to the second limiting ring 17, completing the separation of the endoscopic surgical pad 5. Physician 2 pulls the remaining portion out of the endoscopic biopsy channel to check the position of the suture and the endoscopic surgical pad 5. The pad 5 can be released in various forms, such as umbrella-shaped, folded, spiral, or petal-shaped, to adapt to different surgical requirements. The pad 5 is coated with... It has a sustained-release hemostatic coating and a sustained-release antibiotic coating, which can slowly release hemostatic drugs and antibiotics to reduce bleeding and infection at the fistula. The long curved arm 6 of the fixator has a first limiting ring 24 at its tail end. When the sutures are removed two weeks after the gastrostomy, the first doctor first clamps the first limiting ring 24 with a foreign body forceps under endoscopy. The second doctor cuts and removes the sutures. The first doctor then removes the endoscopic surgical pad 5 through the esophagus under endoscopy. However, in some patients with esophageal tumors, the esophagus is already severely narrowed when the sutures are removed, and it is impossible to remove the endoscopic surgical pad 5 through the esophagus. In this case, the endoscopic surgical pad 5 will fall into the stomach cavity after the sutures are removed and be excreted with feces through the intestines. The patient can use a mobile phone to connect to the built-in GPS positioning system to observe the position of the endoscopic surgical pad 5 and whether it has been excreted.
[0064] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.
Claims
1. An endoscopic surgical pad, comprising a delivery system and a pad system, characterized in that, The gasket system is connected to one end of the conveying system. The conveying system includes a pusher (1), a handle (2), a conveying pipe (3), and a connecting ring (4). The gasket system includes a gasket (5), a long curved arm of a retainer (6), a short arm of a retainer (7), a gasket limiting tube (8), and a gasket limiting ring (9). The handle (2) is fixedly connected to the delivery tube (3) and together they are fitted on the outside of the pusher (1), wherein the handle (2) is fitted on the inlet side of the pusher (1) and the delivery tube (3) is fitted on the anal side of the pusher (1); The connecting ring (4) is movably fitted inside the anal end of the delivery pipe (3), and the connecting ring (4) is movably fitted inside the long curved arm (6) of the fixer. The long curved arm (6) of the fixture is fixedly connected to the gasket (5), the short arm (7) of the fixture is sleeved inside the long curved arm (6), the gasket limiting tube (8) is sleeved outside the conveying pipe (3), and the gasket limiting tube (8) is fixedly connected to the gasket limiting ring (9).
2. The endoscopic surgical pad according to claim 1, characterized in that, The pusher (1) consists of a thumb ring (10), a push bar (11), a push rod (12), and a push block (13). The diameter of the push rod (12) is smaller than that of the push bar (11) and the push block (13). The thumb ring (10), the push bar (11), the push rod (12), and the push block (13) are fixedly connected in sequence.
3. An endoscopic surgical pad according to claim 2, characterized in that, The handle (2) has handle rings (14) on both sides, a push bar limiting groove (15) in the middle of the handle (2) that matches the diameter of the push bar (11), and a push rod hole (21) at the front end of the handle (2) that communicates with the push bar limiting groove (15) and whose diameter matches the push rod (12).
4. An endoscopic surgical pad according to claim 3, characterized in that, The conveying pipe (3) is fixedly connected to the handle (2). The outer wall of the conveying pipe (3) is provided with a gasket limiting ring buckle (16) for fixing the gasket limiting ring (9). The inner side wall of the inner head end of the conveying pipe (3) is provided with a second limiting ring (17). The second limiting ring (17) is a beveled ring that matches the shape of the first tenon (18). The second limiting ring (17) is perpendicular to the wall of the conveying pipe (3).
5. An endoscopic surgical pad according to claim 4, characterized in that, The connecting ring (4) has a protruding first tenon (18) and a second tenon (19) on the outside. The first tenon (18) is at an obtuse angle to the outer wall of the connecting ring (4) and is adapted to the inclined shape of the first limiting ring (24) and the second limiting ring (17). The second tenon (19) is at a right angle to the outer wall of the connecting ring (4). The connecting ring (4) has a push block separation groove (20) adapted to the size of the push block (13) and a push rod channel (21) adapted to the diameter of the push rod (12). The push block separation groove (20) and the push rod channel (21) are connected.
6. An endoscopic surgical pad according to claim 1, characterized in that, The gasket (5) is made of a memory metal wire skeleton. The gasket (5) is gathered inside the gasket limiting tube (8). The head end of the long curved arm (6) of the retainer is in a "J" shape and is fixedly connected to the gasket (5). The front end of the "J"-shaped arm is provided with a long curved arm comb (22). The main body of the long curved arm (6) of the retainer is cylindrical. The inner wall of the cylindrical body is provided with a long curved arm limiting protrusion (23). The tail end of the cylindrical inner arm is provided with a first limiting ring (24). The first limiting ring (24) forms an obtuse angle with the inner wall of the long curved arm (6) of the retainer and with the first tenon (18). The shape is adapted, the head end of the short arm (7) of the fixture is "I" shaped, and the top end is provided with a short arm toothed comb (25). The short arm toothed comb (25) is adapted to the shape of the long curved arm toothed comb (22). The short arm (7) of the fixture is cylindrical, and the outer side of the cylindrical wall is provided with inwardly recessed slide rails (26). The slide rails (26) are provided with inwardly recessed small round dots called short arm limiting grooves (27). The opening below the short arm (7) of the fixture is a hollow groove called a short arm pushing groove (28), which is adapted to the shape of the pushing block (13).
7. An endoscopic surgical pad according to claim 6, characterized in that, The short arm (7) of the fixture is fitted inside the long curved arm (6) of the fixture. The limiting protrusion (23) of the long curved arm is located inside the slide rail (26). The gasket limiting ring (9) and the gasket limiting ring buckle (16) are connected by a buckle.
8. An endoscopic surgical pad according to claim 7, characterized in that, The short arm (7) of the fixture is equipped with a wireless GPS positioning system.
9. An endoscopic surgical pad according to claim 8, characterized in that, The pad (5) has anti-slip grooves or anti-slip particles.
10. An endoscopic surgical pad according to claim 9, characterized in that, The gasket (5) is coated with a sustained-release hemostatic coating and a sustained-release antibiotic coating.