Balloon plugging catheter structure for colorectal operation

By designing a balloon occlusion catheter with double balloon occlusion and adjustable drainage tube, the problems of intestinal fluid leakage and unstable drainage after anastomotic leakage in colorectal surgery were solved, achieving stable intestinal closure and drainage, and simplifying postoperative care.

CN223654297UActive Publication Date: 2025-12-12NANJING HOSPITAL OF TCM
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Patent Information

Application Number
CN202520237442.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-12
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing catheters for preventing anastomotic leakage after colorectal surgery have problems with intestinal fluid leakage and unstable drainage, which affect treatment outcomes and patient recovery.

Method used

A balloon occlusion catheter comprising a main tube, a positioning disc, a drainage component, and a double balloon structure was designed. Through double-end occlusion and an adjustable drainage tube, combined with fixation by an adsorption disc, stable occlusion and drainage of the intestine are achieved.

Benefits of technology

It improves the stability of intestinal fistula closure, avoids intestinal fluid leakage, reduces the risk of infection, maintains drainage stability, and simplifies the surgical procedure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a balloon plugging catheter structure for colorectal surgery, which belongs to the technical field of catheter structure buckles and comprises a main catheter, the top end of the main catheter is connected with a positioning disc, the top end of the positioning disc is connected with a drainage component, the main catheter comprises a main tube, one end of the main tube is connected with a first balloon, and the other end of the main tube is connected with a second balloon. The other end of the main tube is connected with a second balloon, the bottom end of the second balloon is connected with a drainage tube, open holes are formed in the periphery of the drainage tube, the outer wall of one side of the drainage tube is connected with an auxiliary tube, and a folding opening is formed in the outer wall of one side of the auxiliary tube. The main tube part of the catheter structure is communicated with the corresponding saccules through each group of cavity tubes and can be matched with expansion of the two groups of saccules, double-end blocking is formed during placement and fixation, the sealing stability of the intestinal fistula part is improved, intestinal juice is prevented from overflowing, a subsequent secondary retraction operation is not needed, and the main tube part can be matched with connection of a traction rope to adjust the bending degree of a drainage tube; the intestinal inner wall is prevented from being attached during drainage, and drainage stability is kept.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of catheter structure, specifically is a kind of balloon occlusion catheter structure for colorectal surgery. BACKGROUND

[0002] Colorectal cancer is one of the most common malignant tumors in digestive tract, with high incidence and high mortality rate, etc., at present, surgical resection is the most effective treatment for colorectal cancer. After resection of colorectal tumor in clinic, the proximal and distal colon stumps need to be anastomosed. Anastomotic leakage is a common complication in clinic, with an incidence of about 20% of surgical patients in Europe and the United States, and about 5% in China. Anastomotic leakage is difficult to treat, and patients need to stay in hospital for a long time, which is costly and even life-threatening in severe cases. Domestic and foreign medical institutions usually use colostomy or terminal ileostomy to prevent anastomotic leakage. This active fistula method is usually used with a catheter, which can guide the contents of the intestine out in advance, so that they do not pass through the anastomotic stoma, in order to prevent or reduce anastomotic leakage.

[0003] China Patent Network published (public application number CN219700789U) a kind of lower digestive tract intestinal fistula prevention catheter, including catheter main body, catheter main body one end is opened with several drainage ports, catheter main body other end is communicated with extracorporeal drainage device, catheter main body one end with drainage port is equipped with occlusion balloon, drainage pipe head end is equipped with catheter fixing ring, occlusion balloon surface is equipped with three balloon fixing rings, occlusion balloon is connected with intestinal wall by balloon fixing ring, catheter main body one end with drainage port is equipped with catheter fixing ring, catheter main body is connected with intestinal wall by catheter fixing ring, balloon fixing ring and pipe fixing ring are made of human absorbable material or disintegrable material.

[0004] The above-mentioned intestinal fistula catheter, when in use, blocks the intestinal contents by using the balloon and the protruding fixing ring of the drainage end head to prevent contamination of the anastomotic stoma, thereby preventing the occurrence of anastomotic leakage, but this catheter only uses one group of balloons to occlude the intestinal tract, and there is still a part of intestinal fluid leakage during intestinal peristalsis, and the occlusion structure is insufficient, which can easily lead to fistula infection, and the drainage tube part can generate negative pressure during drainage, so that the tube end head adheres to the intestinal wall, thereby affecting the normal drainage effect of the catheter. Therefore, we propose a balloon occlusion catheter structure for colorectal surgery. UTILITY MODEL CONTENT

[0005] The content part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] The utility model discloses a purpose at providing a kind of balloon occlusion catheter structure for colorectal surgery, to solve the problem presented in the above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of balloon occlusion catheter structure for colorectal surgery, including main catheter, the top end of the main catheter is connected with positioning disc, and the top end of positioning disc is connected with drainage assembly, the main catheter includes main pipe, and one end of main pipe is connected with first balloon, the other end of main pipe is connected with second balloon, and the bottom end of second balloon is connected with drainage tube, the periphery of drainage tube is equipped with aperture, and the outer wall of one side of drainage tube is connected with auxiliary pipe, the outer wall of one side of auxiliary pipe is equipped with folding mouth, and the center of folding mouth is equipped with traction rope, the inner wall of one side of main pipe is provided with first cavity pipe, and the inner wall of other side of main pipe is provided with second cavity pipe.

[0008] Further, the folding mouth is equidistantly equipped along the outer wall of auxiliary pipe, and the traction rope is sequentially equipped along the folding mouth and is connected with positioning disc.

[0009] Further, the drainage tube is connected with main pipe, and the first cavity pipe and the second cavity pipe in the inner wall of main pipe are respectively communicated with first balloon and second balloon.

[0010] Further, the positioning disc includes adsorption disc, and silica gel pad is embedded in the bottom surface of adsorption disc, one side of the top surface of adsorption disc is provided with winding frame, the bottom end of winding frame is connected with traction rope, and one end of winding frame is connected with knob, and the side of knob is equipped with plug bolt.

[0011] Further, the knob is clamped with one end of winding frame through plug bolt, and adsorption disc is fixedly connected with winding frame.

[0012] Further, the drainage assembly includes drainage outer tube, the bottom end of drainage outer tube is connected with main pipe, and the top end of drainage outer tube is connected with main end head, one side of main end head is provided with first valve pipe, and the other side of main end head is provided with second valve pipe.

[0013] Further, the first valve pipe and the second valve pipe are communicated with the inside of main pipe through drainage outer tube.

[0014] Further, the drainage outer tube is fixedly connected with the top end of main pipe, and main end head is communicated with the top end of drainage outer tube.

[0015] Further, the auxiliary pipe is integrally connected with the outer wall of main pipe, and the bottom end of traction rope is fixed with the end of auxiliary pipe.

[0016] Compared with prior art, the utility model has the beneficial effects that:

[0017] The main pipe part of the catheter structure is communicated with the corresponding balloon through each group of cavity tubes, and can form double-end blocking after being placed in the intestinal tract, cooperate with the inflation of the two groups of balloons, keep fixed, improve the stability of the intestinal fistula part, avoid intestinal fluid overflow, and avoid subsequent secondary reinsertion surgery.

[0018] The adsorption disc part of the catheter structure is adsorbed and fixed to the skin of the abdomen of the patient through the silica gel pad at the bottom, and the inflated first balloon in the intestinal wall is assisted to clamp and keep blocking stable.

[0019] The drainage outer tube at the top end of the catheter structure is connected with the main end head, the communication between the main pipe and the drainage outer tube can facilitate the drainage of intestinal fluid, and the first valve tube and the second valve tube are connected with the corresponding first cavity tube and second cavity tube, so that the adjustment of the first balloon and the second balloon is facilitated, and convenience is provided for the placement and removal process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the main catheter of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the drainage tube in the main catheter of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the drainage tube in the utility model;

[0023] Figure 4 It is a schematic diagram of the cross section of the main catheter of the utility model;

[0024] Figure 5 It is a schematic diagram of the internal structure of the positioning disc of the utility model;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the drainage assembly of the utility model;

[0026] Figure 7 It is a schematic diagram of the catheter after being placed.

[0027] In the drawing: 1, main catheter; 101, main pipe; 102, first balloon; 103, second balloon; 104, drainage tube; 105, opening; 106, auxiliary pipe; 107, folding opening; 108, traction rope; 109, first cavity tube; 110, second cavity tube; 2, positioning disc; 201, adsorption disc; 202, silica gel pad; 203, winding frame; 204, knob; 205, plug; 3, drainage assembly; 301, drainage outer tube; 302, main end head; 303, first valve tube; 304, second valve tube. DETAILED DESCRIPTION

[0028] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0029] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0030] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0031] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0032] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] This utility model provides, for example Figures 1-4 The balloon occlusion catheter structure for colorectal surgery shown includes a main tube 1, a positioning disc 2 connected to the top end of the main tube 1, and a drainage component 3 connected to the top end of the positioning disc 2. The main tube 1 includes a main tube 101, one end of which is connected to a first balloon 102, and the other end of which is connected to a second balloon 103. The bottom end of the second balloon 103 is connected to a drainage tube 104. The drainage tube 104 has openings 105 around its perimeter, and a secondary tube 106 is connected to one side of the outer wall of the drainage tube 104. A folded opening 107 is opened on one side of the outer wall of the secondary tube 106, and a traction rope 108 is threaded through the center of the folded opening 107. A first lumen 109 is provided on one side of the inner wall of the main tube 101, and a second lumen 110 is provided on the other side of the inner wall of the main tube 101.

[0034] To maintain effective occlusion and drainage of the ileum after colon surgery, such as Figures 1-4As shown, the main tube 101 of this catheter structure has a first lumen 109 and a second lumen 110 inside, and each lumen is connected to a corresponding balloon. After the catheter is inserted into the intestine, the second balloon 103 can block the ileum of the drainage tube 104. At the same time, the first balloon 102 and the positioning plate 2 keep the fistula closed and block the posterior end of the ileum again. When the catheter is fixed, it forms a double-end blockage, which improves the sealing stability of the fistula part of the intestine, avoids the leakage of intestinal fluid, and eliminates the need for a second reduction surgery.

[0035] To ensure stable drainage after the catheter is inserted into the intestine, such as Figures 1-4 As shown, the end drainage tube 104 of this catheter has openings 105 distributed around its perimeter. Intestinal fluid in the ileum can be drained through the openings 105 along with the extended drainage tube 104 and the connected main tube 101. The drainage tube 104 itself can be arranged in conjunction with the folded opening 107 of the integrated auxiliary tube 106. As the traction rope 108 is stretched, the folded opening 107 is contracted, thereby allowing the drainage tube 104 to bend upwards or downwards for adjustment. This prevents the end drainage tube 104 from sticking to the intestinal wall after the tube is inserted, thus maintaining stable drainage.

[0036] like Figure 5 As shown, the positioning disk 2 includes an adsorption disk 201, and a silicone pad 202 is embedded in the bottom surface of the adsorption disk 201. A winding frame 203 is provided on one side of the top surface of the adsorption disk 201. A traction rope 108 is connected to the bottom end of the winding frame 203, and a knob 204 is connected to one end of the winding frame 203. A plug 205 is inserted through one side of the knob 204.

[0037] To facilitate the adjustment of the traction rope 108 and ensure stable sealing of the suction plate 201 during catheter placement, such as Figure 5 As shown, the suction cup 201 of this catheter structure maintains adhesion to the patient's abdominal skin through the silicone pad 202 at the bottom, and is further clamped by the expanded first balloon 102 of the intestinal wall to maintain a stable seal. The top surface of the suction cup 201 can be rotated by the operating knob 204 to rotate the winding frame 203, so that the connected traction rope 108 can be wound or loosened, which facilitates the adjustment of the curvature of the drainage tube 104. The plug 205 of the knob 204 can be inserted and fixed to the winding frame 203 to maintain stability after adjustment.

[0038] like Figures 6-7 As shown, the drainage assembly 3 includes a drainage outer tube 301, the bottom end of which is connected to a main tube 101, and the top end of which is connected to a main end 302. A first valve tube 303 is provided on one side of the main end 302, and a second valve tube 304 is provided on the other side of the main end 302.

[0039] Finally, to facilitate drainage and balloon adjustment, such as Figures 6-7As shown, the drainage outer tube 301 at the top end of the catheter structure is connected with the main head 302, and through the communication between the main tube 101 and the drainage outer tube 301, the intestinal fluid can be conveniently drained, while the first valve tube 303 and the second valve tube 304 are connected with the corresponding first cavity tube 109 and the second cavity tube 110, facilitating the adjustment of the first balloon 102 and the second balloon 103, and providing convenience for the placement and removal process.

[0040] In summary, in use, first, the abdominal intestinal fistula is completed, ensuring that the intestinal fistula corresponds to the corresponding abdominal fistula, and the percutaneous suture fixation is performed to make the intestinal tract adhere to the inner wall of the abdomen, and then the catheter is placed into the ileum, and during the placement, the drainage tube 104 of the catheter enters the ileum, and then the gas or liquid is transmitted to the second balloon 103 through the second cavity tube 110 to fill and expand the second balloon 103, completing the blocking of the ileum part, and then the adsorption disc 201 adheres to the outer wall of the abdomen, at this time, the first balloon 102 is inflated by cooperating the first valve tube 303 and the first cavity tube 109, at this time, the first balloon 102 and the adsorption disc 201 block the abdominal fistula and the intestinal fistula, and at the same time, the inflated first balloon 102 also keeps the other end of the ileum in a blocked state, forming a double-end blocking process, after the placement is completed, the curvature of the drainage tube 104 can be adjusted according to the needs, the traction rope 108 is wound by rotating the knob 204 to drive the winding frame 203 to wind, at this time, the auxiliary tube 106 connected at the bottom end of the traction rope 108 and the drainage tube 104 are bent upward with the pulling force, the folding opening 107 is in a contracted state, the adjustment of the bending state is completed, at this time, the drainage tube 104 is in the center of the intestinal tract and does not adhere to the inner wall, and the intestinal fluid can be drained through the holes 105 around the drainage tube 104.

[0041] The above description is only some of the preferred embodiments of the present disclosure and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form technical solutions.

Claims

1. A balloon occlusion catheter structure for colorectal surgery comprising a main catheter (1), characterized in that: The top end of the main pipe (1) is connected with a positioning disc (2), and the top end of the positioning disc (2) is connected with a drainage assembly (3), the main pipe (1) comprises a main pipe (101), one end of the main pipe (101) is connected with a first balloon (102), the other end of the main pipe (101) is connected with a second balloon (103), and the bottom end of the second balloon (103) is connected with a drainage pipe (104), a plurality of holes (105) are arranged on the periphery of the drainage pipe (104), and a side outer wall of the drainage pipe (104) is connected with a sub pipe (106), a side outer wall of the sub pipe (106) is provided with a folding opening (107), and a traction rope (108) is arranged in the center of the folding opening (107), and a first cavity pipe (109) is arranged on one side of the inner wall of the main pipe (101), and a second cavity pipe (110) is arranged on the other side of the inner wall of the main pipe (101).

2. A balloon occlusion catheter structure for colorectal surgery according to claim 1, characterized in that: The folding openings (107) are equidistantly arranged on the outer wall of the sub pipe (106), and the traction ropes (108) are sequentially arranged in the folding openings (107) and connected with the positioning disc (2).

3. The balloon occlusion catheter structure for colorectal surgery of claim 1, wherein: The drainage pipe (104) is connected with the main pipe (101), and the first cavity pipe (109) and the second cavity pipe (110) in the inner wall of the main pipe (101) are respectively connected with the first balloon (102) and the second balloon (103).

4. The balloon occlusion catheter structure for colorectal surgery of claim 1, wherein: The positioning disc (2) comprises an adsorption disc (201), and a silica gel pad (202) is embedded in the bottom surface of the adsorption disc (201), a winding frame (203) is arranged on one side of the top surface of the adsorption disc (201), the bottom end of the winding frame (203) is connected with the traction rope (108), one end of the winding frame (203) is connected with a knob (204), and one side of the knob (204) is provided with a plug (205).

5. The balloon occlusion catheter structure for colorectal surgery of claim 4, wherein: The knob (204) is clamped with one end of the winding frame (203) through the plug (205), and the adsorption disc (201) is fixedly connected with the winding frame (203).

6. The balloon occlusion catheter structure for colorectal surgery of claim 1, wherein: The drainage assembly (3) comprises a drainage outer pipe (301), the bottom end of the drainage outer pipe (301) is connected with the main pipe (101), and the top end of the drainage outer pipe (301) is connected with a main end (302), one side of the main end (302) is provided with a first valve pipe (303), and the other side of the main end (302) is provided with a second valve pipe (304).

7. The balloon occlusion catheter structure for colorectal surgery of claim 6, wherein: The first valve pipe (303) and the second valve pipe (304) are connected with the inside of the main pipe (101) through the drainage outer pipe (301).

8. The balloon occlusion catheter structure for colorectal surgery of claim 6, wherein: The drainage outer pipe (301) is fixedly connected with the top end of the main pipe (101), and the main end (302) is connected with the top end of the drainage outer pipe (301).

9. The balloon occlusion catheter structure for colorectal surgery of claim 1, wherein: The sub pipe (106) is integrally connected with the outer wall of the main pipe (101), and the bottom end of the traction rope (108) is fixedly connected with the end of the sub pipe (106).

Citation Information

Patent Citations

  • Catheter for preventing intestinal fistula in lower digestive tract

    CN219700789U