Novel digestive endoscope suturing auxiliary device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a novel digestive endoscope suturing auxiliary device which comprises a handle, a plastic outer sleeve installed at one end of the handle and a telescopic assembly installed on the handle and inside the plastic outer sleeve. The telescopic assembly comprises an operation sliding sleeve, a steel wire and an umbrella-shaped film. The operation sliding sleeve is slidably installed on the handle and fixedly connected with one end of the steel wire in the handle, the steel wire is located in the plastic outer sleeve, and the other end of the steel wire is fixedly connected with the umbrella-shaped film. The umbrella-shaped film slides on the handle through the operation sliding sleeve and can extend out of the end, away from the handle, of the plastic outer sleeve or retract into the plastic outer sleeve. The device is simple in structure and convenient to operate, can effectively solve the problem of lodging of the hemostatic clip in the purse-string suture process, improves the operation efficiency and suture quality, reduces the operation risk and ensures the safety of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a novel digestive endoscope suturing auxiliary device. Background Art

[0002] Gastric muscularis propria tumors, that is, gastric submucosal tumors originating from the muscularis propria, are mostly raised lesions with no typical clinical symptoms and are usually discovered during gastroscopy. The pathological types of gastric muscularis propria tumors are mainly leiomyoma and stromal tumor, both of which require surgical resection. The current surgical resection method for gastric muscularis propria tumors is endoscopic full-thickness resection, which is developed on the basis of endoscopic submucosal dissection and has a high complete resection rate; endoscopic full-thickness resection can completely remove the tumor while maintaining the integrity of the digestive tract structure, perform precise histological examinations, prevent residual and recurrence, and achieve the same therapeutic effect as surgery.

[0003] At present, with the rapid development of endoscopic treatment technology, suturing technology and instruments are also constantly developing and innovating. Endoscopy can now independently complete the closure of postoperative wounds. Common endoscopic closure methods include metal clip closure, purse-string suture technology, and rake-shaped metal clip closure system. Among them, endoscopic purse-string suture is widely used in the closure of larger gastrointestinal wall defects. The operating steps of the single-cavity purse-string suture technique are as follows: withdraw the endoscope from the body, install the nylon rope on the releaser, extend part of the nylon rope out of the plastic sleeve, and then send the disposable hemostatic clip with a pusher that can be opened and closed repeatedly through the biopsy channel to the front end exit of the endoscope. After opening, clamp the nylon rope, retract the hemostatic clip into the transparent cap, so that the nylon rope and the releaser enter the body with the endoscope and reach the wound site, slowly open the nylon rope, use the hemostatic clip to adjust the position of the nylon rope, and then cover the entire gastric wall defect area with the nylon rope. The nylon rope is fixed between the clamp and the stomach wall. After the hemostatic clip is opened, clamp it. Observe whether the position is good. If the position is not good, open and close it repeatedly until it is in a good position and then release the hemostatic clip. Try to clamp the entire layer of the stomach wall or the muscle layer with the clamp. Use the repeated opening and closing characteristics of the hemostatic clip to adjust the position of the nylon rope and then clamp it. Repeat the above steps to fix it around the wound with 2-6 titanium clips, push the nylon rope plastic sleeve forward, the wound disappears completely, and several standing clips can be seen. Tighten the nylon rope and release it.

[0004] Single-laparoscopic purse-string suture has the advantages of low equipment requirements, easy popularization, simple and fast operation, and reliable efficacy. However, to ensure the smooth completion of the suture, it is necessary to first confirm that all hemostatic clips are perpendicular to the wound surface. When the nylon rope is tightened, all hemostatic clips can be exposed as much as possible in the digestive tract lumen to ensure that there is no gap in the suture. In actual operation, especially for suture of larger digestive tract defects greater than 3 cm, even if the hemostatic clip is fixed in a vertical position, it will fall down to a certain extent during the process of shrinking the nylon rope, causing individual clips to enter the outside of the digestive tract wall. It takes a lot of time and energy to adjust the position of the hemostatic clip, and even suture failure. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a novel digestive endoscopic suturing auxiliary device, through which the hemostatic clamp is supported to prevent it from falling over during the tightening of the nylon rope, so that the nylon rope can be tightened smoothly, thereby achieving fast and efficient suturing of larger digestive tract wall defects, reducing the surgical risks of patients and ensuring their safety.

[0006] The technical solution adopted by the utility model is:

[0007] A novel digestive endoscope suturing auxiliary device comprises a handle, a plastic outer sleeve installed at one end of the handle, and a telescopic component installed on the handle and inside the plastic outer sleeve;

[0008] The telescopic assembly includes an operating sleeve, a steel wire and an umbrella-shaped membrane; the operating sleeve is slidably installed on the handle, the operating sleeve is fixedly connected to one end of the steel wire in the handle, the steel wire is located in the plastic outer sleeve, and the other end of the steel wire is fixedly connected to the umbrella-shaped membrane; the umbrella-shaped membrane can be extended to the outside of the plastic outer sleeve away from one end of the handle, or retracted into the plastic outer sleeve by the operating sleeve sliding on the handle.

[0009] Furthermore, the handle is a tubular structure, which is hollow inside and has a sliding groove on the tube wall to cooperate with the operating sleeve; the operating sleeve is also a tubular structure, and has a sliding block on its inner wall, which is slidably sleeved on the outside of the handle through the sliding block cooperating with the sliding groove.

[0010] Furthermore, the sliding block extends to the inside of the tube body of the handle, and a mounting plate that cooperates with the connecting wire is formed inside the tube body.

[0011] Furthermore, the operating sliding sleeve is symmetrically provided with a finger ring structure.

[0012] Furthermore, the umbrella-shaped membrane is in an unfolded state when it is outside the plastic outer sleeve, in which the umbrella mouth is located away from one end of the plastic outer sleeve, the umbrella tip is located close to one end of the plastic outer sleeve, and the umbrella tip is fixedly connected to the steel wire.

[0013] Beneficial effects of the utility model:

[0014] This new digestive endoscopic suturing auxiliary device can support the hemostatic clip when the nylon rope is tightened during the single-cavity purse-string suturing process to prevent it from falling over, thereby achieving rapid and efficient suturing of larger digestive tract wall defects. The technical effects are specifically manifested in the following aspects:

[0015] 1. Improve suturing efficiency: By supporting the hemostatic clip, it avoids the phenomenon of falling over during the tightening of the nylon rope, thereby reducing the time and energy required to adjust the position of the hemostatic clip. This greatly shortens the operation time and improves suturing efficiency.

[0016] 2. Ensure suture quality: The stable support of the hemostatic clip makes the suture process smoother, which can effectively prevent individual clips from entering the purse, ensuring seamless and tight suture. This helps reduce the risk of complications such as postoperative leakage and bleeding, and improves the suture quality.

[0017] 3. Reduce surgical risks: Since the patented auxiliary device of the present invention can simplify the surgical process and reduce the difficulty of operation, it can reduce surgical risks. At the same time, fast and efficient suturing also helps to reduce the pain and discomfort of patients during the operation.

[0018] 4. Improve patient safety: By reducing the operation time and reducing the risk of surgery, the patented invention helps improve patient safety. In addition, high-quality sutures also help promote postoperative recovery and reduce the patient's hospital stay and recovery period.

[0019] In summary, this new digestive endoscopic suturing assisting device can achieve rapid and efficient suturing of gastrointestinal wall defects, improve suturing efficiency and quality, reduce surgical risks, and improve patient safety. It has broad application prospects and important clinical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the digestive endoscope suturing auxiliary device of the utility model;

[0021] Figure 3 This is a schematic diagram of the use status of the digestive endoscope suturing auxiliary device of the utility model;

[0022] Figure 4 It is a cross-sectional view of the connection between the handle and the operating sleeve of the digestive endoscope suturing auxiliary device of the utility model;

[0023] In the figure: 1. handle; 2. plastic outer sleeve; 3. operating sleeve; 4. steel wire; 5. umbrella-shaped membrane; 6. slide groove; 7. slider; 8. mounting plate; 9. finger ring structure; 10. nylon rope; 11. hemostatic clip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] This embodiment provides a novel digestive endoscope suturing auxiliary device, which supports the hemostatic clip during the tightening of the nylon rope to prevent it from falling over, so as to smoothly tighten the nylon rope, achieve fast and efficient suturing of larger digestive tract wall defects, reduce surgical risks for patients and ensure patient safety. Figure 1 and Figure 2 As shown, the novel digestive endoscope suturing auxiliary device includes a handle 1 whose composition and structural design are as follows:

[0026] (1) Handle design: As the main operating part of the device, the handle 1 is designed to be ergonomic and convenient for doctors to hold and operate. Therefore, it is made of a tube structure, and a hanging ring is designed at one end of the handle 1 to facilitate the placement of the new digestive endoscopic suturing auxiliary device when it is not in use. Since the handle 1 needs to cooperate with the telescopic component, the tube body of the handle 1 in this embodiment adopts a hollow tube body.

[0027] (2) Plastic outer sleeve design: The plastic outer sleeve 2 adopts a slender hollow tube structure and is installed at the end of the handle 1 away from the hanging ring. The diameter of the plastic outer sleeve needs to meet the size requirements of passing through the endoscopic biopsy channel, and its length needs to meet the requirements of being able to extend to the suture site.

[0028] (3) Telescopic component design: Figure 1 and Figure 2 As shown, the telescopic assembly in this embodiment includes three parts: an operating sleeve 3, a steel wire 4 and an umbrella-shaped membrane 5; wherein the operating sleeve 3 is slidably mounted on the handle 1, the operating sleeve 3 is fixedly connected to one end of the steel wire 4 in the handle 1, the steel wire 4 is located in the plastic outer sleeve 2, and the other end of the steel wire 4 is fixedly connected to the umbrella-shaped membrane 5. The steel wire 4, as a connecting component between the operating sleeve 3 and the umbrella-shaped membrane 5, has sufficient flexibility and strength to ensure that the operating sleeve 3 can drive the umbrella-shaped membrane 5 to move at the same time when sliding on the handle 1, so that the umbrella-shaped membrane 5 extends to the outside of the plastic outer sleeve 2 away from one end of the handle 1, or shrinks into the plastic outer sleeve 2.

[0029] The umbrella-shaped membrane 5 in this embodiment is made of an elastic and flexible material with good biocompatibility, and is in an umbrella-shaped unfolded state in a normal state; Figure 1 and Figure 2 As shown, in the present embodiment, the umbrella-shaped membrane 5 has its opening side located away from one end of the plastic outer tube 2 in the unfolded state, and its umbrella tip side located close to one end of the plastic outer tube 2, and one side of the umbrella tip is fixedly connected to the steel wire 4. When the operating sleeve 3 slides backward on the handle 1, the steel wire 4 pulls the umbrella-shaped membrane 5 toward the plastic outer tube 2, and the tube wall at the tube opening causes the umbrella-shaped membrane 5 to elastically deform, and causes the unfolded part of the umbrella-shaped membrane 5 to shrink toward the center; conversely, when the operating sleeve 3 slides forward on the handle 1, the rigidity of the steel wire 4 is used to push the umbrella-shaped membrane 5 out of the plastic outer tube 2, and the umbrella-shaped membrane 5 restores the conventional umbrella shape. Since the umbrella-shaped membrane 5 is made of an elastic and flexible material with good biocompatibility, it can fit the wall of the digestive tract when unfolded, and will not cause damage to the surrounding tissues.

[0030] The usage and operation process of the new digestive endoscopic suturing auxiliary device are as follows:

[0031] (1) Equipment preparation:

[0032] Before use, the steel wire 4 is pulled back by operating the sliding sleeve 3 to completely retract the umbrella-shaped membrane 5 into the plastic outer sleeve 2, so that the diameter of the device is reduced to a size that can pass through the endoscopic biopsy channel.

[0033] (2) Device delivery and positioning:

[0034] During purse-string suturing, Figure 3 As shown, first fix the hemostatic clip 11 on the wound surface to be sutured, and use nylon rope 10 for pre-fixation. Then, the plastic outer sleeve 2 is sent into the lumen of the digestive tract through the endoscopic biopsy channel, and the sliding sleeve 3 is pushed to unfold the umbrella membrane 5 at the wound surface. Through endoscopic observation, adjust the position of the umbrella membrane 5 to ensure that it covers the root of the hemostatic clip 11 to provide support for the hemostatic clip 11.

[0035] (3) Synchronous operation to achieve suturing:

[0036] During the process of tightening the nylon rope 10, the operating sleeve 3 is operated synchronously to make the umbrella-shaped membrane 5 slowly shrink into the plastic outer sleeve 2. Figure 3 As shown, since the umbrella-shaped membrane 5 is located at the center of the wound surface, it can support the several hemostatic clips 11 on the surrounding side to prevent them from falling into the wound surface. As the nylon rope 10 is gradually tightened, the wound surface is effectively sutured, and the hemostatic clips 11 remain upright to ensure the firmness and aesthetics of the suture.

[0037] (4) Device recovery and termination operation:

[0038] After the suturing is completed, the umbrella-shaped membrane 5 is completely recovered into the plastic outer tube 2, and the plastic outer tube 2 is removed from the endoscopic biopsy hole. The suturing effect is checked to ensure that the digestive tract wall is tightly closed and there is no bleeding before the operation is terminated.

[0039] In summary, the novel digestive endoscopic suturing auxiliary device can support the hemostatic clip 11 during the single-cavity purse-string suturing process to prevent it from falling over, thereby achieving rapid and efficient suturing of larger digestive tract wall defects.

[0040] Furthermore, as a preferred technical solution of this embodiment, this embodiment also provides a specific sliding connection method between the handle 1 and the operating sleeve 3, such as Figure 4 As shown, in this embodiment, two slide grooves 6 cooperating with the operating sleeve 3 are symmetrically arranged on the tube wall of the handle 1 tube body, and a slider 7 is provided on the inner wall of the operating sleeve 3. The operating sleeve 3 can be slidably sleeved on the outside of the handle 1 through the slider 7 cooperating with the slide groove 6, and the slide groove 6 limits the maximum displacement position of the operating sleeve 3. The slider 7 extends to the inside of the tube body of the handle 1, and a mounting plate 8 cooperating with the connecting steel wire 4 is formed inside the tube body, and one end of the steel wire 4 is fixedly connected to the operating sleeve 3 in the handle 1 through the mounting plate 8.

[0041] Furthermore, as a preferred technical solution of this embodiment, considering the convenience of operating the operating sleeve 3, as Figure 1 and Figure 2 As shown, in this embodiment, a finger ring structure 9 is symmetrically provided on the operating sleeve 3.

[0042] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A novel digestive endoscopy suturing auxiliary device, characterized in that: The novel digestive endoscope suturing auxiliary device comprises a handle, a plastic outer sleeve installed at one end of the handle, and a telescopic component installed on the handle and inside the plastic outer sleeve; The telescopic assembly includes an operating sleeve, a steel wire and an umbrella-shaped membrane; the operating sleeve is slidably installed on the handle, the operating sleeve is fixedly connected to one end of the steel wire in the handle, the steel wire is located in the plastic outer sleeve, and the other end of the steel wire is fixedly connected to the umbrella-shaped membrane; the umbrella-shaped membrane can be extended to the outside of the plastic outer sleeve away from one end of the handle, or retracted into the plastic outer sleeve by the operating sleeve sliding on the handle.

2. The novel digestive endoscopy suturing auxiliary device according to claim 1 is characterized in that: The handle is a tubular structure, which is hollow inside and has a sliding groove on the tube wall to match the operating sliding sleeve; the operating sliding sleeve is also a tubular structure, and has a sliding block on its inner wall, which is slidably sleeved on the outside of the handle through the sliding block matching the sliding groove.

3. The novel digestive endoscopy suturing auxiliary device according to claim 2 is characterized in that: The slide block extends to the inside of the tubular body of the handle, and a mounting plate matching the connecting wire is formed inside the tubular body.

4. The novel digestive endoscopy suturing auxiliary device according to claim 1 is characterized in that: The operating sliding sleeve is symmetrically provided with a finger ring structure.

5. The novel digestive endoscopy suturing auxiliary device according to claim 1 is characterized in that: The umbrella-shaped membrane is in an unfolded state when it is outside the plastic outer sleeve. In the unfolded state, the umbrella mouth is located away from one end of the plastic outer sleeve, the umbrella tip is located close to one end of the plastic outer sleeve, and the umbrella tip is fixedly connected to the steel wire.

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