Device for preventing gas, digestive juice and tumors from entering abdominal cavity during endoscopic full-thickness surgery

Abstract

The invention discloses a device for preventing gas, digestive juice and tumors from entering an abdominal cavity during endoscopic full-thickness surgery, which comprises a pipe sleeve, a ring enclosed by inner-layer metal wires and a ring enclosed by outer-layer metal wires are arranged at the front end of the pipe sleeve, the diameter of the ring enclosed by the inner-layer metal wires is smaller than that of the ring enclosed by the outer-layer metal wires, and the diameter of the ring enclosed by the outer-layer metal wires is smaller than that of the ring enclosed by the inner-layer metal wires. A ring defined by the inner-layer metal wires and a ring defined by the outer-layer metal wires are connected through a transparent film layer, the rear end of the pipe sleeve is connected with a handle, and the ring defined by the outer-layer metal wires is covered with an outer-layer film. The intravascular stent not only can be embedded into a perforated part, but also can prevent gas, liquid and tumors in a lumen from entering an abdominal cavity.

Description

Technical Field

[0001] The invention relates to a device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during endoscopic full-thickness surgery, and belongs to the technical field of medical products. Background Art

[0002] For tumors that grow in the muscularis propria, serosa, and outside the cavity, in order to completely remove the tumor, the entire layer of the digestive tract wall is often damaged during the removal process. After the tumor is removed, it is sutured endoscopically, which is called endoscopic full-thickness resection (EFTR). After the entire layer is damaged, the tumor must be removed, but the gas in the digestive tract cavity will enter the abdominal and pelvic cavities. Without gas support, the digestive tract will collapse and the local field of vision will deteriorate. In addition, the fluid in the cavity, such as gastric juice, intestinal juice, and even fecal water, will flow into the abdominal and pelvic cavities, causing flora displacement and peritonitis, and the risk of surgical trauma and infection will increase significantly. The most serious is that after the entire layer of the wall is damaged, after the tumor is removed, there is a risk of falling into the abdominal and pelvic cavities at any time with the peristalsis of the gastrointestinal tract. Once it falls in, it must be transferred to surgery, and the risk of abdominal and pelvic implantation and metastasis is also greatly increased. Summary of the invention

[0003] The technical problem to be solved by the present invention is: during full-thickness endoscopic surgery, how to prevent the intracavitary fluid or the removed tumor from flowing into the abdominal cavity and pelvic cavity along with the fluid.

[0004] In order to solve the above technical problems, the technical solution of the present invention is to provide a device for preventing gas, digestive fluid and tumors from entering the abdominal cavity during full-thickness endoscopic surgery, characterized in that it includes a tube sleeve, a front end of the tube sleeve is provided with a circle formed by an inner metal wire and a circle formed by an outer metal wire, the diameter of the circle formed by the inner metal wire is smaller than the diameter of the circle formed by the outer metal wire, the circle formed by the inner metal wire and the circle formed by the outer metal wire are connected by a transparent film layer, the rear end of the tube sleeve is connected with a handle, and the circle formed by the outer metal wire is covered with an outer film.

[0005] Preferably, the two ends of the inner metal wire are arranged in the tube sleeve, and the middle section is bent into a ring structure. The two ends of the outer metal wire are arranged in the tube sleeve, and the middle section is bent into a ring structure. The handle is provided with an inner metal wire adjustment rod and an outer metal wire adjustment rod for respectively adjusting the diameters of the circles formed by the inner metal wire and the outer metal wire. One end of the inner metal wire is connected to the inner metal wire adjustment rod, and the other end of the inner metal wire is connected to the inner metal wire adjustment rod or the tube sleeve. One end of the outer metal wire is connected to the outer metal wire adjustment rod, and the other end of the outer metal wire is connected to the outer metal wire adjustment rod or the tube sleeve.

[0006] Preferably, the inner wire adjustment rod and the outer wire adjustment rod are both rotatably arranged on the handle, and the rotation axes of the inner wire adjustment rod and the outer wire adjustment rod are perpendicular to the length direction of the pipe sleeve.

[0007] Preferably, the transparent film layer is an annular structure, and its inner and outer edges are respectively sleeved on the circle formed by the inner metal wire and the circle formed by the outer metal wire.

[0008] Preferably, the outer film is movably sleeved on the circle formed by the outer metal wire; or, the outer film is fixedly wrapped on the outer metal wire.

[0009] The present invention provides a device for temporarily sealing a full-thickness defect of the digestive tract during endoscopic EFTR surgery, wherein the inner metal wire is on the mucosal side, the outer metal wire is on the serosal side, and a thin film is covered on the outer metal wire to seal the outer layer, which can be embedded in the perforated part and prevent the gas, liquid and tumor in the lumen from entering the abdominal cavity. The present invention can facilitate the continuation of surgery, and when the tumor is completely peeled off and removed and the wound surface needs to be closed, the device can be taken out, which is particularly suitable for lesions with larger lesions and longer peeling time. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The schematic diagram is a structural diagram of a device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery;

[0011] Figure 2 for Figure 1 A local enlarged schematic diagram of the M position in the middle. DETAILED DESCRIPTION

[0012] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0013] The present invention provides a device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during endoscopic full-thickness surgery. Figure 1 , Figure 2 As shown, it includes a tube sleeve 4, a front end of which is provided with a circle formed by an inner metal wire 1 and a circle formed by an outer metal wire 3, the diameter of the circle formed by the inner metal wire 1 is smaller than the diameter of the circle formed by the outer metal wire 3, the circle formed by the inner metal wire 1 and the circle formed by the outer metal wire 3 are connected by a transparent film layer 2, a handle 5 is provided at the rear end of the tube sleeve 4, and the circle formed by the outer metal wire 3 is covered with an outer film.

[0014] The two ends of the inner metal wire 1 are arranged in the tube sleeve 4, and the middle section is bent into a ring structure; similarly, the two ends of the outer metal wire 3 are arranged in the tube sleeve 4, and the middle section is bent into a ring structure.

[0015] The handle 5 is provided with an inner wire adjustment rod 51 and an outer wire adjustment rod 52 for adjusting the diameter of the inner wire 1 and the outer wire 3, respectively. One end of the inner wire 1 is connected to the inner wire adjustment rod 51, and the other end of the inner wire 1 is connected to the inner wire adjustment rod 51 or the sleeve 4. One end of the outer wire 3 is connected to the outer wire adjustment rod 52, and the other end of the outer wire 3 is connected to the outer wire adjustment rod 52 or the sleeve 4. The inner wire adjustment rod 51 and the outer wire adjustment rod 52 are both rotatably arranged on the handle 5, and the rotation axes of the inner wire adjustment rod 51 and the outer wire adjustment rod 52 are perpendicular to the length direction of the sleeve 4.

[0016] The transparent film layer 2 is an annular structure, and its inner and outer edges are respectively sleeved on the circle formed by the inner metal wire 1 and the circle formed by the outer metal wire 3. Even if the diameters of the circle formed by the inner metal wire 1 and the circle formed by the outer metal wire 3 change, it can ensure that the inner and outer sides of the transparent film layer 2 are respectively connected to the circle formed by the inner metal wire 1 and the circle formed by the outer metal wire 3. The outer film can be movably sleeved on the circle formed by the outer metal wire 3 (the principle is the same as that of the transparent film layer 2 connecting the inner and outer metal wire circles); or, the outer film is directly wrapped and fixed on the outer metal wire 3. Regardless of the size of the circle formed by the outer metal wire 3, the outer film can ensure that the circle formed by the outer metal wire 3 at the front end of the pipe sleeve 4 is covered with the outer film.

[0017] When the inner wire adjusting rod 51 is rotated forward, the end of the inner wire 1 can be gradually wound around the inner wire adjusting rod 51, thereby reducing the diameter of the circle formed by the inner wire 1 at the front end of the pipe sleeve 4; when the inner wire adjusting rod 51 is rotated reversely, the end of the inner wire 1 can be gradually released from the inner wire adjusting rod 51, thereby increasing the diameter of the circle formed by the inner wire 1 at the front end of the pipe sleeve 4.

[0018] Similarly, when the outer wire adjusting rod 52 is rotated forward, the end of the outer wire 3 can be gradually wound around the outer wire adjusting rod 52, thereby reducing the diameter of the circle formed by the outer wire 3 at the front end of the pipe sleeve 4; when the outer wire adjusting rod 52 is rotated reversely, the end of the outer wire 3 can be gradually released from the outer wire adjusting rod 52, thereby increasing the diameter of the circle formed by the outer wire 3 at the front end of the pipe sleeve 4.

[0019] The device of the present invention is guided by an endoscope from outside the body and enters the wound surface. The head end can be a circle formed by inner and outer double-layer metal wires (i.e., inner metal wire 1 and outer metal wire 3). The circle formed by the double-layer metal wires is connected by a transparent film layer 2. The two layers of metal wires and the middle transparent film layer 2 can be embedded in the damaged digestive tract wall. The circle formed by the inner metal wire 1 is on the mucosal side, and the circle formed by the outer metal wire 3 is on the serosal side. However, the circle formed by the outer metal wire 3 is also covered with a film to seal the outer layer. The device of the present invention can be embedded in the perforated part and can prevent the gas, liquid and tumor in the lumen from entering the abdominal cavity. The diameters of the inner metal wire 1 and the outer metal wire 3 at the head end of the present invention can be adjusted by the handle 5 outside the body.

Claims

1. A device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery, characterized in that: The invention comprises a tube sleeve (4), wherein the front end of the tube sleeve (4) is provided with a circle formed by an inner metal wire (1) and a circle formed by an outer metal wire (3), the diameter of the circle formed by the inner metal wire (1) is smaller than the diameter of the circle formed by the outer metal wire (3), the circle formed by the inner metal wire (1) and the circle formed by the outer metal wire (3) are connected by a transparent film layer (2), the rear end of the tube sleeve (4) is connected with a handle (5), and the circle formed by the outer metal wire (3) is covered with an outer film layer.

2. A device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery as claimed in claim 1, characterized in that: The two ends of the inner metal wire (1) are arranged in the tube sleeve (4), and the middle section is bent into a ring structure. The two ends of the outer metal wire (3) are arranged in the tube sleeve (4), and the middle section is bent into a ring structure. The handle (5) is provided with an inner metal wire adjustment rod (51) and an outer metal wire adjustment rod (52) for adjusting the diameter of the circle formed by the inner metal wire (1) and the circle formed by the outer metal wire (3), respectively. One end of the inner metal wire (1) is connected to the inner metal wire adjustment rod (51), and the other end of the inner metal wire (1) is connected to the inner metal wire adjustment rod (51) or the tube sleeve (4). One end of the outer metal wire (3) is connected to the outer metal wire adjustment rod (52), and the other end of the outer metal wire (3) is connected to the outer metal wire adjustment rod (52) or the tube sleeve (4).

3. The device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery as claimed in claim 2, characterized in that: The inner metal wire adjustment rod (51) and the outer metal wire adjustment rod (52) are both rotatably arranged on the handle (5), and the rotation axes of the inner metal wire adjustment rod (51) and the outer metal wire adjustment rod (52) are perpendicular to the length direction of the pipe sleeve (4).

4. The device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery as claimed in claim 1, characterized in that: The transparent film layer (2) is an annular structure, and its inner and outer edges are respectively sleeved on the circle formed by the inner metal wire (1) and the circle formed by the outer metal wire (3).

5. The device for preventing gas, digestive fluid and tumor from entering the abdominal cavity during full-thickness endoscopic surgery as claimed in claim 1, characterized in that: The outer film is movably sleeved on the circle formed by the outer metal wire (3); or, the outer film is fixedly wrapped on the outer metal wire (3).

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