Balloon occluded double cannula for digestive tract fistula

Abstract

The utility model relates to medical instrument technical field, concretely relates to a double cannula for digestive tract fistula of balloon occlusion, including outer tube, flush pipe, connecting air bag, positioning mechanism, inner tube, the outer tube can drain flush liquid, a plurality of suction holes are arranged in the outer tube side, flush pipe can transport flush liquid, flush pipe sets up at the top of outer tube, connecting air bag sets up in one end of outer tube, positioning mechanism sets up on the outer tube, and the inner tube sets up in the inside of outer tube. In the utility model, connecting air bag is arranged in one end of outer tube, when the outer tube and flush pipe are inserted into the intestinal external fistula, can be inflated to the inside of connecting air bag, and the connecting air bag is puffed up, and the fistula on the intestinal tract is blocked through connecting air bag, in the process of washing and draining, the intestinal fistula can be blocked as far as possible through connecting air bag, thereby avoiding digestive juice leakage into the abdominal cavity as far as possible, and it is favorable to the treatment of intestinal external fistula.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a double-tube balloon closure system for gastrointestinal fistulas. Background Technology

[0002] The Li's double-lumen cannula is a special medical device mainly used for abdominal irrigation and drainage in patients with enterocutaneous fistula. When there is fluid in the abdominal cavity, the fluid enters the gap between the inner and outer tubes through the pores of the outer cannula, and is then aspirated by the inner tube with negative pressure. The outer tube blocks the inner tube, preventing the tissues and organs in the abdominal cavity from directly contacting the inner tube with negative pressure. When there is no fluid in the abdominal cavity, the inner tube can aspirate the air entering the outer tube, thus preventing tissues from being sucked into the negative pressure tube and damaged. At the same time, physiological saline can be delivered to the patient's abdominal cavity for irrigation through the provided irrigation tube. The double-lumen cannula can effectively control infection and improve the cure rate of enterocutaneous fistula. When using existing double-lumen cannulas, they are usually directly inserted into the abdominal cavity for irrigation and drainage. However, during the irrigation and drainage process, due to the presence of the enterocutaneous fistula, digestive juices in the intestine may leak into the abdominal cavity through the enterocutaneous fistula. This leakage of digestive juices into the abdominal cavity can easily cause abdominal infection, which is not conducive to the treatment of enterocutaneous fistula. Utility Model Content

[0003] The purpose of this invention is to provide a double-tube balloon occlusion system for gastrointestinal fistulas to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A double-tube balloon occlusion system for gastrointestinal fistulas includes an outer tube, an irrigation tube, a connecting balloon, a positioning mechanism, and an inner tube.

[0006] The outer tube can drain the flushing fluid, and several suction holes are provided on the side of the outer tube;

[0007] The flushing tube is capable of delivering flushing fluid and is located at the top of the outer tube;

[0008] The connecting airbag is located at one end of the outer tube;

[0009] The positioning mechanism is installed on the outer tube;

[0010] The inner tube is located inside the outer tube.

[0011] Furthermore, an elastic band is fixedly connected to one end of the flushing tube near the connecting airbag, and two plug-in blocks are fixedly connected to the inner side of the elastic band. Two limiting holes are opened on one side of the outer tube to slide and connect with the adjacent plug-in blocks.

[0012] Furthermore, a shielding ring is provided on the side of the connecting airbag corresponding to the elastic band.

[0013] Preferably, the inner side of the connecting airbag is fixedly connected to a fixed tube that communicates with the end of the outer tube, and a drainage hole is provided at the end of the fixed tube away from the outer tube. An inflation tube that communicates with the inside of the connecting airbag is provided on the inner side of the fixed tube.

[0014] Furthermore, a swivel ring is fixedly connected to the side of the outer tube away from the connecting airbag, and a limiting seat is provided on the side of the inflation tube away from the connecting airbag. A second swivel seat is rotatably connected to the side of the limiting seat and is swivelly connected to the swivel ring.

[0015] Preferably, the positioning mechanism includes a positioning frame, a hemostatic sponge, and adhesive tape;

[0016] The positioning frame is slidably connected to the side of the outer tube, and the flushing tube passes through the inside of the positioning frame;

[0017] The hemostatic sponge is placed on the inner side of the positioning frame;

[0018] The adhesive tape is used to secure the device to the side of the positioning frame.

[0019] Furthermore, a connecting ring is provided on the side of the outer tube corresponding to the positioning frame. One end face of the connecting ring is rotatably connected to a screw seat that is screwed into the positioning frame. Two fixing blocks are fixedly connected to the other end face of the connecting ring. Two elastic bands are fixedly connected to the two fixing blocks. An insertion block is fixedly connected to the inner side of the elastic band that slides into the adjacent suction hole.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. A connecting balloon is installed at one end of the outer tube. When the outer tube and the flushing tube are inserted into the enterocutaneous fistula, air can be inflated into the connecting balloon to block the fistula opening in the intestine. Then, flushing fluid, i.e., physiological saline, can be delivered into the abdominal cavity through the flushing tube. The flushing fluid and any leaked digestive fluids in the abdominal cavity can pass through the suction hole into the interior of the outer tube. Then, negative pressure aspiration is performed through the inner tube to draw the fluid in the outer tube out of the body. Digestive fluids in the intestine can be drained through the fixing tube and the outer tube. During the flushing and drainage process, the connecting balloon can be used to block the intestinal fistula opening as much as possible, thereby minimizing the leakage of digestive fluids into the abdominal cavity, which is beneficial for the treatment of enterocutaneous fistula. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a double-tube balloon occlusion system for gastrointestinal fistulas according to this utility model.

[0023] Figure 2 This is a front view schematic diagram of the internal structure of the outer tube in this utility model;

[0024] Figure 3This is a top view of the internal structure of the outer tube in this utility model;

[0025] Figure 4 This is a schematic diagram of the flushing pipe structure in this utility model;

[0026] Figure 5 This is a schematic diagram of the positioning mechanism in this utility model;

[0027] Figure 6 This is a schematic diagram of the limiting seat structure in this utility model.

[0028] In the diagram: 1. Outer tube; 11. Suction hole; 12. Limiting hole; 13. Engaging ring; 2. Flushing tube; 21. Elastic band one; 22. Insertion block one; 3. Connecting airbag; 31. Fixing tube; 32. Inflation tube; 33. Shielding ring; 4. Positioning mechanism; 41. Positioning frame; 42. Hemostatic sponge; 43. Adhesive tape; 5. Inner tube; 6. Connecting ring; 61. Engaging seat one; 62. Fixing block; 63. Elastic band two; 64. Insertion block two; 7. Limiting seat; 71. Engaging seat two. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 In this embodiment of the present invention, a double-tube balloon occlusion method for gastrointestinal fistula includes an outer tube 1, a flushing tube 2, a connecting balloon 3, a positioning mechanism 4, and an inner tube 5.

[0031] The outer tube 1 can drain the flushing fluid. Several suction holes 11 are opened on the side of the outer tube 1. The flushing tube 2 can deliver the flushing fluid. The flushing tube 2 is located at the top of the outer tube 1. A round hole is opened on the side of the flushing tube 2 near the connecting airbag 3. The connecting airbag 3 is located at one end of the outer tube 1. A fixing tube 31 communicating with the end of the outer tube 1 is fixedly connected to the inner side of the connecting airbag 3. A drainage hole is opened at the end of the fixing tube 31 away from the outer tube 1. An inflation tube 32 communicating with the inside of the connecting airbag 3 is provided on the inner side of the fixing tube 31. The positioning mechanism 4 is located on the outer tube 1. The inner tube 5 is located on the outer tube. Inside the outer tube 1, the inflation tube 32 extends into the inner tube 1. A screw ring 13 is fixedly connected to the side of the outer tube 1 away from the connecting airbag 3. A limiting seat 7 is provided on the side of the inflation tube 32 away from the connecting airbag 3. Both the inflation tube 32 and the inner tube 5 pass through the interior of the limiting seat 7. The limiting seat 7 can limit the inflation tube 32 and the inner tube 5. A second screw seat 71 is rotatably connected to the side of the limiting seat 7 and screws into the screw ring 13. The inner side of the second screw seat 71 screws into the outer side of the screw ring 13. The screw ring 13 can limit the position of the limiting seat 7 through the second screw seat 71.

[0032] Specifically, the inner tube 5 can pass through the inside of the limiting seat 7 and then into the inside of the outer tube 1. The second screw seat 71 can rotate relative to the limiting seat 7 and screw the second screw seat 71 onto the screw ring 13. The limiting seat 7 supports the inflation tube 32 and the inner tube 5. Two rubber rings can be fixedly installed on the inner side of the limiting seat 7 so that the sides of the inflation tube 32 and the inner tube 5 are in contact with the inner side of the adjacent rubber rings. The rubber rings increase the resistance to the movement of the inflation tube 32 and the inner tube 5 relative to the limiting seat 7, thereby minimizing the possibility of the inflation tube 32 and the inner tube 5 moving freely relative to the limiting seat 7. In this way, the limiting seat 7 can roughly limit the movement of the inflation tube 32 and the inner tube 5.

[0033] The outer tube 1 and the flushing tube 2 can be inserted into the enterocutaneous fistula. The fixing tube 31 can be moved by pushing the outer tube 1, thereby extending the connecting balloon 3 to the corresponding position. Then, air can be inflated into the connecting balloon 3 through the inflation tube 32, causing the connecting balloon 3 to inflate and block the fistula opening on the intestine, separating the inside of the intestine from the inside of the abdominal cavity as much as possible. Then, flushing fluid, which can be physiological saline, can be delivered into the abdominal cavity through the flushing tube 2. The flushing fluid can enter the abdominal cavity through the round hole. The inner tube 5 can be connected to a negative pressure device to generate negative pressure inside the inner tube 5. In this way, the flushing fluid and leaked digestive fluid in the abdominal cavity can pass through the suction hole 11 into the inside of the outer tube 1. The inner tube 5 can perform negative pressure suction on the inside of the outer tube 1, and the liquid in the outer tube 1 can be suctioned out of the body through the inner tube 5, thereby draining the fluid in the abdominal cavity. When there is no fluid in the abdominal cavity, air can pass through. The inner tube 5 enters the outer tube 1 through the suction port 11 outside the abdominal cavity. The inner tube 5 draws air from the outer tube 1. When it is necessary to drain the intestine, the inner tube 5 can be used to apply negative pressure to the outer tube 1. The digestive juice in the intestine can enter the fixed tube 31 through the drainage port, and then enter the outer tube 1. The digestive juice is then drained out through the inner tube 5, minimizing leakage of digestive juice into the abdominal cavity and preventing intestinal obstruction. When the flushing and drainage are completed and the tube needs to be removed, the gas in the connecting balloon 3 can be expelled. Then, while moving the outer tube 1, the fixed tube 31 and the connecting balloon 3 can be moved to remove the tube. During the flushing and drainage process, the connecting balloon 3 can be used to block the intestinal fistula as much as possible, and the drainage of digestive juice can minimize leakage of digestive juice into the abdominal cavity, which is beneficial for the treatment of enterocutaneous fistula.

[0034] Example 1

[0035] like Figure 2-4 As shown, in this embodiment, an elastic band 21 is fixedly connected to one end of the flushing tube 2 near the connecting airbag 3. Two plug-in blocks 22 are fixedly connected to the inner side of the elastic band 21. Two limiting holes 12 are opened on one side of the outer tube 1 and are slidably connected to the adjacent plug-in blocks 22. A shielding ring 33 is provided on the side of the connecting airbag 3 corresponding to the elastic band 21. The shielding ring 33 can block the elastic band 21. Both the connecting airbag 3 and the shielding ring 33 are made of silicone material.

[0036] In practice, under the action of the elastic band 21, the insertion block 22 can be kept inserted inside the limiting hole 12. In this way, the position of the elastic band 21 relative to the outer tube 1 can be restricted by the limiting hole 12 and the insertion block 22. Then, the end of the flushing tube 2 can be connected to the outer tube 1. The elastic band 21 is covered by the shielding ring 33. When the outer tube 1 and the flushing tube 2 are inserted into the enterocutaneous fistula, the elastic band 21 will not come into direct contact with the abdominal tissue. This avoids the situation where the elastic band 21 flips over and the insertion block 22 is dislodged from the limiting hole 12 due to the resistance of the abdominal tissue to the movement of the flushing tube 2. This is conducive to the smooth delivery of the outer tube 1 and the flushing tube 2 into the abdominal cavity. The elastic band 21 can be pulled to separate the insertion block 22 from the limiting hole 12. Then, the elastic band 21 can be removed from the outer tube 1, and the outer tube 1 and the flushing tube 2 can be separated.

[0037] like Figure 2-5 As shown, in this embodiment, the positioning mechanism 4 includes a positioning frame 41, a hemostatic sponge 42, and an adhesive tape 43;

[0038] The positioning frame 41 is slidably connected to the side of the outer tube 1. The positioning frame 41 can move along the side of the outer tube 1. The flushing tube 2 passes through the inside of the positioning frame 41. The hemostatic sponge 42 is set on the inner side of the positioning frame 41. The flushing tube 2 can pass through the inside of the hemostatic sponge 42. The adhesive tape 43 is fixedly connected to the side of the positioning frame 41.

[0039] In practice, after inserting the outer tube 1 and the flushing tube 2 into the abdominal cavity, they can be attached to the patient's skin with adhesive tape 43 so that the hemostatic sponge 42 is tightly attached to the external fistula on the abdominal cavity. During the aspiration process, the hemostatic sponge 42 can absorb the fluid leaking from the abdominal cavity, thus minimizing the amount of dirt caused by fluid leakage.

[0040] Example 2

[0041] Based on Example 1, such as Figure 5 As shown, in this embodiment, a connecting ring 6 is provided on the side of the outer tube 1 corresponding to the positioning frame 41. One end face of the connecting ring 6 is rotatably connected to a screw seat 61 that is screwed into the positioning frame 41. The inner side of the screw seat 61 is screwed into the side of the positioning frame 41. Two fixing blocks 62 are fixedly connected to the other end face of the connecting ring 6. Two elastic bands 63 are fixedly connected to the two fixing blocks 62. An insertion block 64 that is slidably inserted into the adjacent suction hole 11 is fixedly connected to the inner side of the elastic band 63.

[0042] In specific implementation, under the action of the elastic band 63, the insertion block 64 can be kept inserted inside the corresponding suction hole 11. Thus, the fixing block 62 and the elastic band 63 are connected to the outer tube 1 through the insertion block 64 and the suction hole 11, thereby restricting the position of the connecting ring 6 relative to the outer tube 1. The connecting ring 6 can be connected to the positioning frame 41 through the screw seat 61. In this way, the positioning mechanism 4 and the outer tube 1 can be connected to each other. After the adhesive tape 43 is attached to the patient's body, the position of the outer tube 1 can be restricted, which is conducive to positioning the outer tube 1. Before use, the elastic band 63 can be pulled to separate the insertion block 64 from the corresponding suction hole 11, thereby adjusting the position of the connecting ring 6 and the positioning frame 41. The screw seat 61 can also be rotated relative to the connecting ring 6, causing the positioning frame 41 to move along the inside of the screw seat 61, adjusting the distance between the positioning frame 41 and the connecting ring 6. Thus, after the adhesive tape 43 is attached to the patient's body, the length of the outer tube 1 inserted into the abdominal cavity can be adjusted.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-cannula for balloon closure of a gastrointestinal fistula, characterized in that, include: The outer tube (1) is capable of draining the flushing fluid, and the outer tube (1) has several suction holes (11) on its side; A flushing pipe (2) is provided on top of the outer pipe (1) to deliver flushing fluid. Connect the airbag (3) and set it at one end of the outer tube (1); Positioning mechanism (4) is installed on outer tube (1); The inner tube (5) is located inside the outer tube (1).

2. The double-cannula balloon-sealed gastrointestinal fistula according to claim 1, characterized in that, The flushing tube (2) is fixedly connected to an elastic band (21) at one end near the connecting airbag (3). Two plug-in blocks (22) are fixedly connected to the inner side of the elastic band (21). Two limiting holes (12) are opened on one side of the outer tube (1) and are slidably connected to the adjacent plug-in blocks (22).

3. The double-cannula for balloon-sealed gastrointestinal fistulas according to claim 2, characterized in that, A shielding ring (33) is provided on the side of the connecting airbag (3) corresponding to the elastic band (21).

4. The double-cannula for balloon closure of a gastrointestinal fistula according to claim 1, characterized in that, The inner side of the connecting airbag (3) is fixedly connected to a fixed tube (31) that communicates with the end of the outer tube (1). A drainage hole is provided at the end of the fixed tube (31) away from the outer tube (1). An inflation tube (32) that communicates with the inside of the connecting airbag (3) is provided on the inner side of the fixed tube (31).

5. The double-cannula balloon-sealed gastrointestinal fistula according to claim 4, characterized in that, A screw ring (13) is fixedly connected to the side of the outer tube (1) away from the connecting airbag (3), and a limiting seat (7) is provided on the side of the inflation tube (32) away from the connecting airbag (3). A second screw seat (71) that is screwed into the screw ring (13) is rotatably connected to the side of the limiting seat (7).

6. The double-cannula for balloon closure of a gastrointestinal fistula according to claim 1, characterized in that, The positioning mechanism (4) includes: The positioning frame (41) is slidably connected to the side of the outer tube (1), and the flushing tube (2) passes through the inside of the positioning frame (41); A hemostatic sponge (42) is placed on the inner side of the positioning frame (41); Adhesive tape (43) is fixedly connected to the side of the positioning frame (41).

7. The double-cannula for balloon-sealed gastrointestinal fistulas according to claim 6, characterized in that, The outer tube (1) is provided with a connecting ring (6) on the side corresponding to the positioning frame (41). One end face of the connecting ring (6) is rotatably connected to a screw seat (61) that is screwed into the positioning frame (41). The other end face of the connecting ring (6) is fixedly connected to two fixing blocks (62). The two fixing blocks (62) are fixedly connected to two elastic bands (63). The inner side of the elastic bands (63) is fixedly connected to a plug block (64) that is slidably inserted into the adjacent suction hole (11).

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