Flushing drainage and leak hunting device for rectal cancer surgery

By designing a flushing and drainage device with leak detection for rectal cancer surgery, the problems of poor flushing and disinfection and inaccurate anastomotic leak detection during rectal cancer surgery were solved. This enabled depth control and precise operation, reduced intestinal wall damage and infection risk, and improved surgical efficiency.

CN223799963UActive Publication Date: 2026-01-16ZHEJIANG PROVINCIAL LITONGDE HOSPITAL (ZHEJIANG PROVINCIAL INST OF MENTAL HEALTH)
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Patent Information

Application Number
CN202520221246.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-01-16
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

Current technology lacks specialized tools for rectal cancer surgery, resulting in poor irrigation and disinfection, a high risk of intestinal wall damage, and inaccurate anastomotic leak detection, which increases infection and operation time.

Method used

A device for irrigation and drainage with leak detection in rectal cancer surgery has been designed, comprising a main body, a drainage port, an air-injection irrigation port, a drainage tube, an air-injection irrigation tube, a leak-proof plug, and a decompression expansion membrane, to achieve precise operation of depth control, drainage, and air-injection leak detection.

Benefits of technology

It enables precise control of insertion depth, reduces the risk of intestinal wall damage and infection, improves irrigation efficiency and the accuracy of anastomotic leak detection, and reduces operation time.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a washing drainage and leak hunting device for rectal cancer surgery, which comprises a main tube body (1), and the front end part of the main tube body (1) is provided with a drainage port (2) and an air injection washing port (3); the middle part of the main pipe body (1) is provided with a leakage-proof plug (6) which is movably connected with the main pipe body (1); a drainage tube (4) and an air injection flushing tube (5) are arranged on the side portion of the rear end of the main tube body (1) in a penetrating mode, the front end of the drainage tube (4) is located in the main tube body (1) and corresponds to the drainage opening (2), and the front end of the air injection flushing tube (5) is located in the main tube body (1) and corresponds to the air injection flushing opening (3). The rear end of the main pipe body (1) is provided with a pressure reduction expansion film (7) communicated with an inner cavity of the main pipe body (1). According to the utility model, the insertion depth can be controlled, drainage, flushing and air inflation leak detection can be carried out, the internal pressure condition can be directly seen in the air inflation process, the pressure can be accurately controlled, and the practicability and the reliability are good.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to a flushing drainage and leakage detection device for rectal cancer operation. BACKGROUND

[0002] The incidence of rectal cancer is high, ranking second in the digestive tract malignant tumors, and the main treatment method is surgical treatment. After the lesion is removed during the operation, the anus and intestinal canal need to be flushed and disinfected. The traditional method does not have special tools, and the flushing and disinfection is carried out by clamping a cotton ball with an oval clamp and using a blood transfusion device, which has poor effect, the depth cannot be controlled, and the operation can easily cause intestinal wall damage. The flushed sewage cannot be collected, increasing the risk of infection and pressure sores. After the intestinal segment is reconstructed, the inflation test is needed to detect the anastomotic stoma. The traditional method uses a 50ML syringe to inflate through the anus, and the inflation pressure cannot be controlled, which increases the risk of anastomotic stoma damage and cannot confirm the leakage detection effect. The whole operation process is very inconvenient and increases the operation time. SUMMARY

[0003] The utility model discloses a flushing drainage and leakage detection device for rectal cancer operation. The utility model can control the insertion depth and carry out drainage, flushing and inflation leakage detection, and the internal pressure condition can be directly observed during the inflation process, so as to accurately control the pressure, and the practicability and reliability are good.

[0004] The utility model discloses a flushing drainage and leakage detection device for rectal cancer operation, including the main pipe body, the front end part of main pipe body is equipped with the drainage port and the gas injection flushing port, the middle part of main pipe body is equipped with the movable joint's leakage prevention plug, the rear end side of main pipe body is equipped with the drainage pipe and the gas injection flushing pipe, the front end of drainage pipe is located in the main pipe body and corresponds with the drainage port, the front end of gas injection flushing pipe is located in the main pipe body and corresponds with the gas injection flushing port, the rear end of main pipe body is equipped with the pressure relief inflatable membrane that communicates with its inner chamber, and the pressure relief inflatable membrane is used for showing the internal pressure change of main pipe body.

[0005] The utility model discloses a flushing drainage and leakage detection device for rectal cancer operation, including the main pipe body, the front end part of main pipe body is equipped with the drainage port and the gas injection flushing port, the middle part of main pipe body is equipped with the movable joint's leakage prevention plug, the rear end side of main pipe body is equipped with the drainage pipe and the gas injection flushing pipe, the front end of drainage pipe is located in the main pipe body and corresponds with the drainage port, the front end of gas injection flushing pipe is located in the main pipe body and corresponds with the gas injection flushing port, the rear end of main pipe body is equipped with the pressure relief inflatable membrane that communicates with its inner chamber, and the pressure relief inflatable membrane is used for showing the internal pressure change of main pipe body.

[0006] The utility model discloses a flushing drainage and leakage detection device for rectal cancer operation, including the main pipe body, the front end part of main pipe body is equipped with the drainage port and the gas injection flushing port, the middle part of main pipe body is equipped with the movable joint's leakage prevention plug, the rear end side of main pipe body is equipped with the drainage pipe and the gas injection flushing pipe, the front end of drainage pipe is located in the main pipe body and corresponds with the drainage port, the front end of gas injection flushing pipe is located in the main pipe body and corresponds with the gas injection flushing port, the rear end of main pipe body is equipped with the pressure relief inflatable membrane that communicates with its inner chamber, and the pressure relief inflatable membrane is used for showing the internal pressure change of main pipe body.

[0007] The utility model discloses a flushing drainage and leakage detection device for rectal cancer operation, including the main pipe body, the front end part of main pipe body is equipped with the drainage port and the gas injection flushing port, the middle part of main pipe body is equipped with the movable joint's leakage prevention plug, the rear end side of main pipe body is equipped with the drainage pipe and the gas injection flushing pipe, the front end of drainage pipe is located in the main pipe body and corresponds with the drainage port, the front end of gas injection flushing pipe is located in the main pipe body and corresponds with the gas injection flushing port, the rear end of main pipe body is equipped with the pressure relief inflatable membrane that communicates with its inner chamber, and the pressure relief inflatable membrane is used for showing the internal pressure change of main pipe body.

[0008] The leakage-proof plug comprises an annular body, and a sealing ring is arranged on the inner wall of the annular body and is attached to the outer wall of the main pipe body.

[0009] The front part of the annular body is conical.

[0010] The outer side wall of the front part of the main pipe body is provided with an axial scale.

[0011] The front end of the main pipe body is semispherical.

[0012] The rear end of the drainage pipe and the gas injection and flushing pipe are provided with quick connectors.

[0013] Compared with the prior art, the rear end of the drainage pipe is connected with the drainage pump before use, the rear end of the gas injection and flushing pipe is connected with the air charging pump and the water injection pump respectively, the leakage-proof plug is moved to the required position, and the distance between the leakage-proof plug and the front end of the main pipe body is the insertion depth, so that the user can accurately control; the front end of the main pipe body is inserted into the rear leakage-proof plug to be attached to the anus of the patient to realize the sealing of the intestinal canal, the water injection pump injects liquid into the gas injection and flushing pipe, and then the intestinal wall is flushed and disinfected through the gas injection and flushing port, and at the same time, the drainage pump sucks and discharges the liquid after flushing through the drainage pipe and the drainage port, so as to reduce the risk of infection and pressure sores; after the intestinal segment is reconstructed, the air charging pump charges the intestinal canal through the gas injection and flushing pipe and inspects the anastomotic stoma, and the change of the internal pressure of the intestinal canal will act on the main pipe body through the gas injection and flushing port, and then the pressure relief inflatable film is deformed, on the one hand, the internal pressure can be reduced, and on the other hand, the internal leakage result can be observed from the outside, and the use is convenient and the reliability is good. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model;

[0015] Figure 2 It is a cross section structure schematic view of the utility model.

[0016] The marks in the drawings are: 1, main pipe body; 2, drainage port; 3, gas injection and flushing port; 4, drainage pipe; 5, gas injection and flushing pipe; 6, leakage-proof plug; 7, pressure relief inflatable film; 8, partition plate; 9, through hole; 10, anti-skid handle; 11, annular body; 12, sealing ring; 13, arc-shaped elastic check piece; 14, scale; 15, quick connector. DETAILED DESCRIPTION

[0017] The utility model is further illustrated below in combination with the drawings and examples, but is not taken as the basis of limiting the utility model.

[0018] Embodiment: a flushing drainage device for rectal cancer surgery with leakage detection, as shown in the accompanying drawings Figure 1 and the accompanying drawings Figure 2As shown, including the main pipe body 1, the front end of the main pipe body 1 is provided with drainage port 2 and gas flushing port 3; The side of the main pipe body 1 is provided with drainage tube 4 and gas flushing tube 5 through the opening, the opening is fixed and sealed by sealing glue, the front end of the drainage tube 4 is located in the main pipe body 1 and corresponds to the drainage port 2, the front end of the gas flushing tube 5 is located in the main pipe body 1 and corresponds to the gas flushing port 3; The middle part of the main pipe body 1 is movably connected with the leak-proof plug 6; The rear end of the main pipe body 1 is adhered with the spherical medical silica gel material pressure relief expansion film 7 which is communicated with the inner cavity of the main pipe body 1, and the whole is a structure capable of deforming with the change of internal pressure, the deformation degree of the pressure relief expansion film 7 is proportional to the internal pressure of the main pipe body, the adhesion ensures the sealing of the connection and the accuracy of the pressure transmission, after the intestinal segment reconstruction, the internal pressure of the intestinal tube changes and acts on the main pipe body through the gas flushing port, and then the pressure relief expansion film deforms, on the one hand, the internal pressure is reduced, and on the other hand, the internal leakage result is convenient to observe from the outside; The front part of the inner cavity of the main pipe body 1 is integrally formed with the polycarbonate material partition plate 8, the drainage port 2 is located in front of the partition plate 8, and the gas flushing port 3 is located behind the partition plate 8; The partition plate 8 is provided with the through hole 9 matched with the drainage tube 4, the drainage tube is fixed on the through hole by sealing glue, the inner cavity of the main pipe body for drainage is isolated from the inner cavity of the main pipe body for gas flushing, so that the drainage liquid does not pollute the flushing liquid, thereby reducing the infection rate, at the same time, the drainage position is located inside the flushing position, the drainage range is expanded, the integrated connection mode makes the connection between the partition plate and the main pipe body firm and reliable, which can effectively prevent the partition plate from loosening and falling off during use, and ensure the normal operation of the device, the drainage tube is fixed by using sealing glue at the through hole of the partition plate, which further enhances the sealing between the drainage tube and the partition plate, preventing liquid leakage; The drainage port 2 is provided with a plurality of openings and is uniformly distributed along the peripheral wall of the main pipe body 1, which increases the drainage area to improve the efficiency; The gas flushing port 3 is provided with a plurality of openings and is uniformly distributed along the peripheral wall of the main pipe body 1, which increases the gas flushing area to improve the efficiency; The rear outer wall of the main pipe body 1 is fixed with the anti-skid handle 10, which is convenient for reliable holding; The leak-proof plug 6 comprises an annular body 11, a sealing ring 12 is adhered to the inner circle wall of the annular body 11 and is matched with the outer wall of the main pipe body 1, which is used to match to reduce the gap and improve the sealing performance; The annular body 11 is adhered with the arc-shaped elastic check piece 13 made of rubber material and matched with the wall of the main pipe body 1, the arc-shaped elastic check piece naturally stretches without extrusion and small friction force when pushed forward, the arc-shaped elastic check piece is deformed and bent when pulled back, the friction force between the arc-shaped elastic check piece and the wall of the main pipe body increases, thereby avoiding the accidental back pushing of the leak-proof plug, facilitating positioning and improving the reliability of use; The front part of the annular body 11 is conical, which is convenient for matching the anus; The outer side wall of the front part of the main pipe body 1 is processed with the axially distributed scale 14, which is convenient for the user to accurately know and control the insertion depth; The front end of the main pipe body 1 is semispherical, which avoids the intestinal wall damage during operation;The rear end of the drainage tube 4 and the gas injection flushing tube 5 is fixed with a quick connector 15, the quick connector on the drainage tube is a single-head quick connector, used for connecting a drainage pump, and has a spiral sealing cover for sealing when injecting gas, the quick connector on the gas injection flushing tube is a double-head quick connector, used for connecting a gas filling pump and a water injection pump respectively, and has a spiral sealing cover, the quick connector is a technical component familiar to and mastered by those skilled in the art, and will not be described here.

[0019] Working principle: before use, connect the drainage pump to the rear end of the drainage tube 4, and connect the gas filling pump and the water injection pump to the rear end of the gas injection flushing tube 5 respectively, move the leak-proof plug 6 to the desired position, the distance between the leak-proof plug 6 and the front end of the main pipe body 1 is the insertion depth, which is convenient for the user to accurately control; insert the front end of the main pipe body 1 into the patient's anus to realize the sealing of the intestinal canal, inject liquid into the gas injection flushing tube 5 through the water injection pump, and then flush and disinfect the intestinal wall through the gas injection flushing port 3, at the same time, the drainage pump sucks and discharges the liquid after flushing through the drainage tube 4 and the drainage port 2, thereby reducing the risk of infection and pressure sores; after the intestinal segment is reconstructed, the gas filling pump inflates the intestinal canal through the gas injection flushing tube 5 and performs anastomotic port inspection, during which the change of the internal pressure of the intestinal canal will act on the main pipe body 1 through the gas injection flushing port 3, thereby causing the deformation of the pressure relief expansion film 7, on the one hand, the internal pressure can be reduced, and on the other hand, the internal leakage result can be observed from the outside, and the convenience and reliability are good.

[0020] The above embodiments only express the implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent, and in the above embodiment, up, down, left, right, front and back only represent their relative positions and not their absolute positions. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A device for irrigation and drainage with leakage detection for rectal cancer surgery, characterized in that: The utility model provides a kind of medical drainage tube, including main pipe body (1), the front end of main pipe body (1) is equipped with drainage port (2) and gas injection flushing port (3);The middle part of the main pipe body (1) is equipped with movable connection's leakproof plug (6);The rear end side of the main pipe body (1) is equipped with drainage tube (4) and gas injection flushing tube (5), and the front end of drainage tube (4) is located in main pipe body (1) and corresponds with drainage port (2), and the front end of gas injection flushing tube (5) is located in main pipe body (1) and corresponds with gas injection flushing port (3);The rear end of the main pipe body (1) is equipped with with its inner cavity communication's pressure relief inflatable membrane (7), and pressure relief inflatable membrane (7) is used to show the pressure change inside main pipe body (1).

2. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 1, characterized in that: The front part of the inner cavity of the main pipe body (1) is equipped with partition plate (8), and the drainage port (2) is located in front of partition plate (8), and the gas injection flushing port (3) is located in rear of partition plate (8);Partition plate (8) is equipped with the through hole (9) that is adapted with drainage tube (4) on it.

3. The device according to claim 1, characterized in that it is a device for the irrigation and drainage of the surgical site in rectal cancer surgery with leak detection. The drainage port (2) is provided with multiple and is evenly distributed along the peripheral wall of main pipe body (1);The gas injection flushing port (3) is provided with multiple and is evenly distributed along the peripheral wall of main pipe body (1).

4. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 1, characterized in that: The rear part of the main pipe body (1) is equipped with anti-skid handle (10).

5. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 1, characterized in that: The leakproof plug (6) includes annular body (11), and the inner circle wall of annular body (11) is equipped with sealing ring (12) that is attached with the outer wall of main pipe body (1);The rear part of the annular body (11) is equipped with arc-shaped elastic check piece (13) that is attached with the wall of main pipe body (1).

6. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 5, characterized in that: The front part of the annular body (11) is conical.

7. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 1, characterized in that: The outside wall of the front part of the main pipe body (1) has axial distribution scale (14).

8. The device for rectal cancer surgery with irrigation and drainage and leakage detection according to claim 1, characterized in that: The front end of the main pipe body (1) is hemispherical.

9. The device for rectal cancer surgery with irrigation and drainage with leakage detection according to claim 1, characterized in that: The rear end of the drainage tube (4) and gas injection flushing tube (5) is equipped with quick connector (15).