A new medical drainage bag

By designing a new type of medical drainage bag, and utilizing the combination of components such as the drainage bag body, drainage tube, through hole, auxiliary components and disinfection bag, the problems of interface contamination and cumbersome disinfection when collecting specimens with drainage bags are solved, and safe and efficient drainage fluid extraction and disinfection are achieved.

CN224331283UActive Publication Date: 2026-06-09JIANGXI CHEST HOSPITAL (THIRD PEOPLES HOSPITAL OF JIANGXI PROVINCE)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI CHEST HOSPITAL (THIRD PEOPLES HOSPITAL OF JIANGXI PROVINCE)
Filing Date
2025-04-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing drainage bags are prone to causing interface contamination and cross-infection when collecting specimens, and the disinfection process is cumbersome and time-consuming, increasing the workload and infection risk of medical staff.

Method used

A novel medical drainage bag has been designed, comprising a drainage bag body, a drainage tube, a through hole, auxiliary components, a sterilization bag, a through groove, a rubber ring, and protective components. Through the cooperation of these components, drainage fluid can be drawn without directly connecting a syringe and the sterilization process can be simplified, avoiding cross-infection and cumbersome operation.

Benefits of technology

It enables flexible control of the amount of drainage fluid extracted, avoids cross-infection, simplifies disinfection procedures, improves safety and efficiency, and reduces the workload of medical staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a novel medical drainage bag, comprising a drainage bag body and a drainage tube fixedly connected to the drainage bag body. The top of the drainage bag body has a through hole, within which an auxiliary component is disposed. A sterilization bag is fixedly connected to the lower end of one side of the drainage bag body. A first through groove is formed at the lower end of one side of the drainage bag body, and a second through groove is formed on the side of the sterilization bag. A rubber ring is fixedly installed between the inner walls of the first and second through grooves, and a sealing block is fixedly connected to the inner side of the rubber ring. Two protective components are symmetrically arranged on the drainage bag body. Compared with existing technologies, this novel medical drainage bag is simple, practical, convenient, and safer, meeting hospital infection control requirements, avoiding the environmental impact of medical waste, and reducing the workload of medical staff in practical applications.
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Description

Technical Field

[0001] This utility model relates to the field of drainage bag technology, and in particular to a novel medical drainage bag. Background Technology

[0002] Currently, with the continuous development of medical technology, effusions inside the body can be drained through thoracic and abdominal catheters. Thoracic and abdominal drainage is also a major method for treating pleural and abdominal effusions. Drainage bags are bags used by internal medicine and surgical patients to store drainage fluid after draining blood or effusions from deep within the body or surgical site. They are commonly used medical supplies in clinical practice.

[0003] However, the drainage bags commonly used in clinical practice are of the ordinary type, with only a single drain valve to discharge fluid. Clinically, various drainage fluid samples are frequently collected based on changes in the patient's condition, and the methods for collecting samples are inconsistent each time. Some use a syringe directly connected to the drainage tube to draw the fluid, which easily leads to interface contamination; others drain the drainage fluid into a container before collecting the sample, which cannot accurately measure the sample volume, and the exposed bodily fluids are easily contaminated, posing a risk of cross-infection and harming both patients and medical staff. Furthermore, to comply with hospital infection control regulations, current drainage bags require disinfection of the drainage fluid inside after drainage before disposal to avoid medical waste impacting the environment. Currently, the drainage fluid is drained from the bag before disinfection, a cumbersome, time-consuming, and labor-intensive process that increases the workload of medical staff, and medical staff are also prone to infection during handling. Therefore, we propose a new type of medical drainage bag. Utility Model Content

[0004] The main objective of this invention is to propose a novel medical drainage bag that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel medical drainage bag, comprising a drainage bag body and a drainage tube fixedly connected to the drainage bag body, a through hole at the top of the drainage bag body, an auxiliary component disposed within the through hole, a sterilization bag fixedly connected to the lower end of one side of the drainage bag body, a first through groove at the lower end of one side of the drainage bag body, a second through groove at one side of the sterilization bag, a rubber ring fixedly installed between the inner walls of the first through groove and the second through groove, a sealing block fixedly connected to the inner side of the rubber ring, and two protective components symmetrically disposed on the drainage bag body.

[0006] As a further description of the above technical solution, the first through groove corresponds to the second through groove and has the same cross-sectional area.

[0007] As a further description of the above technical solution, the auxiliary component includes a fixing tube, and a rubber column is fixedly connected inside the fixing tube.

[0008] As a further description of the above technical solution, the fixing tube is adapted to the through hole and is fixedly connected inside the through hole, and the fixing tube is connected to the inside of the drainage bag body.

[0009] As a further description of the above technical solution, the protective component includes two fixing rods, each of which has an adhesive piece fixedly connected to one side, and several protective plates are symmetrically fixedly connected between the two fixing rods.

[0010] As a further description of the above technical solution, the length of the fixing rod is greater than the height of the rubber ring, and the two fixing rods are respectively attached to the drainage bag body and the disinfection bag by adhesive patches.

[0011] As a further description of the above technical solution, the protective plate includes two connecting parts and a protective part, the protective part is disposed between the two connecting parts, the connecting parts and the protective part are integrally formed, the two connecting parts are respectively fixedly connected to two fixing rods, and the protective part has an arched structure.

[0012] As a further description of the above technical solution, the drainage bag body is provided with scale lines, and the sealing block is made of polyethylene material.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up the drainage bag body, drainage tube, through hole and auxiliary components to cooperate, when collecting drainage fluid in the drainage bag body, there is no need to use a syringe to directly connect to the drainage tube to draw it out, nor is it necessary to drain the drainage fluid into a container and then collect the specimen. You only need to use the needle of the syringe to insert into the drainage bag body through the rubber column on the auxiliary component to draw it out. Moreover, the amount of fluid drawn can be flexibly controlled, which is convenient and quick, avoids cross-infection and is safer.

[0015] 2. By setting up a drainage bag body, drainage tube, through hole, auxiliary components, disinfection bag, first through groove, second through groove, rubber ring, sealing block, and protective components, when disinfecting the drainage fluid inside the drainage bag body after drainage, it is not necessary to drain the drainage fluid from the drainage bag before disinfection. Simply tear off the two protective components from the drainage bag body and the disinfection bag, and then firmly pinch the connection between the drainage bag body and the disinfection bag, that is, the location of the rubber ring and the sealing block. Simply crush the sealing block to mix the disinfectant in the disinfection bag with the drainage fluid in the drainage bag body for disinfection. This method is time-saving, labor-saving, simple, quick, and safer.

[0016] 3. By setting up a drainage bag body, drainage tube, through hole, auxiliary components, disinfection bag, first through groove, second through groove, rubber ring, sealing block and protective components in combination, if there is too much drainage fluid in the drainage bag body and the disinfection bag has a limited amount of disinfectant that is not enough to completely disinfect the drainage fluid, the needle of the syringe containing disinfectant can be inserted into the drainage bag body through the rubber column on the auxiliary component to inject a certain amount of disinfectant into the drainage bag body, which is more convenient and faster and avoids the phenomenon of wasting disinfectant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a novel medical drainage bag according to this utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of a novel medical drainage bag according to the present invention from a second perspective.

[0019] Figure 3 This is a cross-sectional view of the overall structure of a novel medical drainage bag according to this utility model;

[0020] Figure 4 This is an exploded view of the auxiliary component structure of a novel medical drainage bag according to this utility model;

[0021] Figure 5 This is a schematic diagram of the protective component structure of a novel medical drainage bag according to this utility model.

[0022] In the diagram: 1. Drainage bag body; 2. Drainage tube; 3. Through hole; 4. Auxiliary component; 5. Disinfection bag; 6. First through groove; 7. Second through groove; 8. Rubber ring; 9. Sealing block; 10. Protective component; 41. Fixing tube; 42. Rubber column; 101. Fixing rod; 102. Adhesive piece; 103. Protective plate; 1031. Connecting part; 1032. Protective part. Detailed Implementation

[0023] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a novel medical drainage bag, comprising a drainage bag body 1 and a drainage tube 2 fixedly connected to the drainage bag body 1. The top of the drainage bag body 1 is provided with a through hole 3. A disinfection bag 5 is fixedly connected to the lower end of one side of the drainage bag body 1. The drainage bag body 1 is provided with scale lines. The disinfection bag 5 contains a disinfectant solution for disinfecting and sterilizing the drainage fluid. It is hereby specified that the content of the disinfectant solution is a dose that can disinfect 500ml of drainage fluid.

[0027] An auxiliary component 4 is provided inside the through hole 3. The auxiliary component 4 includes a fixing tube 41, which is adapted to the through hole 3 and fixedly connected inside the through hole 3. The fixing tube 41 is connected to the inside of the drainage bag body 1. A rubber column 42 is fixedly connected inside the fixing tube 41. When collecting the drainage fluid in the drainage bag body 1, it is not necessary to use a syringe to directly connect to the drainage tube 2 to draw it out, nor is it necessary to drain the drainage fluid into a container and then collect the sample. It is only necessary to use the needle of the syringe to insert from the rubber column 42 on the auxiliary component 4 into the drainage bag body 1 to draw it out. If the drainage fluid content in the drainage bag body 1 exceeds 500ml, the disinfectant content in the disinfection bag 5 is not enough to completely disinfect the drainage fluid. At this time, the needle of the syringe containing disinfectant can be inserted from the rubber column 42 on the auxiliary component 4 into the drainage bag body 1 to inject a certain amount of disinfectant into the drainage bag body 1 to complete the disinfection and sterilization.

[0028] A first through groove 6 is provided on the lower end of one side of the drainage bag body 1, and a second through groove 7 is provided on one side of the disinfection bag 5. The first through groove 6 and the second through groove 7 correspond to each other and have the same cross-sectional area. A rubber ring 8 is fixedly installed between the inner walls of the first through groove 6 and the second through groove 7. A sealing block 9 is fixedly connected to the inner side of the rubber ring 8. The sealing block 9 is made of polyethylene material. Since polyethylene material is a thermoplastic resin obtained by polymerization reaction of ethylene monomer, it is odorless, non-toxic, has a waxy feel, excellent low temperature resistance (minimum operating temperature can reach -100~-70℃), good chemical stability, insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation, and good flexibility and plasticity. Its physical properties allow it to be crushed by hand.

[0029] Two protective components 10 are symmetrically arranged on the body 1 of the drainage bag. Each protective component 10 includes two fixing rods 101. The length of the fixing rods 101 is greater than the height of the rubber ring 8. An adhesive piece 102 is fixedly connected to one side of each of the two fixing rods 101. The two fixing rods 101 are respectively attached to the body 1 of the drainage bag and the disinfection bag 5 through the adhesive pieces 102. Several protective plates 103 are symmetrically fixedly connected between the two fixing rods 101. Each protective plate 103 includes two connecting parts 1031 and a protective part 1032. The protective part 1032 is located between the two connecting parts 1031 and has an arched structure. The connecting parts 1031 and the protective part 1032 are integrally formed. The two connecting parts 1031 are respectively fixedly connected to the two fixing rods 101.

[0030] It should be noted that this utility model is a novel medical drainage bag. When disinfecting the drainage fluid inside the drainage bag body 1 after drainage, it is not necessary to drain the drainage fluid from the drainage bag body 1 before disinfection. Simply tear the two protective components 10 from the drainage bag body 1 and the disinfection bag 5, then firmly pinch the connection between the drainage bag body 1 and the disinfection bag 5, i.e., the location of the rubber ring 8 and the sealing block 9. Simply crushing the sealing block 9 will allow the disinfectant in the disinfection bag 5 to mix and disinfect with the drainage fluid in the drainage bag body 1. Compared with existing novel medical drainage bags, this utility model is simple, practical, convenient, quick, and safer, meeting hospital infection control requirements, avoiding the environmental impact of medical waste, and reducing the workload of medical staff in practical applications.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel medical drainage bag, comprising a drainage bag body (1) and a drainage tube (2) fixedly connected to the drainage bag body (1), characterized in that, The top of the drainage bag body (1) is provided with a through hole (3), and an auxiliary component (4) is provided in the through hole (3). A disinfection bag (5) is fixedly connected to the lower end of one side of the drainage bag body (1). A first through groove (6) is provided at the lower end of one side of the drainage bag body (1), and a second through groove (7) is provided on one side of the disinfection bag (5). A rubber ring (8) is fixedly installed between the inner walls of the first through groove (6) and the second through groove (7). A sealing block (9) is fixedly connected to the inner side of the rubber ring (8). Two protective components (10) are symmetrically arranged on the drainage bag body (1).

2. The novel medical drainage bag according to claim 1, characterized in that, The first through groove (6) corresponds to the second through groove (7) and has the same cross-sectional area.

3. The novel medical drainage bag according to claim 1, characterized in that, The auxiliary component (4) includes a fixing tube (41), and a rubber column (42) is fixedly connected inside the fixing tube (41).

4. A novel medical drainage bag according to claim 3, characterized in that, The fixing tube (41) is adapted to the through hole (3) and is fixedly connected inside the through hole (3). The fixing tube (41) is connected to the inside of the drainage bag body (1).

5. A novel medical drainage bag according to claim 1, characterized in that, The protective component (10) includes two fixing rods (101), each of which is fixedly connected to one side with an adhesive piece (102), and a plurality of protective plates (103) are symmetrically fixedly connected between the two fixing rods (101).

6. A novel medical drainage bag according to claim 5, characterized in that, The length of the fixing rod (101) is greater than the height of the rubber ring (8), and the two fixing rods (101) are respectively attached to the drainage bag body (1) and the disinfection bag (5) by adhesive strips (102).

7. A novel medical drainage bag according to claim 5, characterized in that, The protective plate (103) includes two connecting parts (1031) and a protective part (1032). The protective part (1032) is disposed between the two connecting parts (1031). The connecting parts (1031) and the protective part (1032) are integrally formed. The two connecting parts (1031) are respectively fixedly connected to two fixing rods (101). The protective part (1032) has an arched structure.

8. A novel medical drainage bag according to claim 1, characterized in that, The drainage bag body (1) is provided with scale lines, and the sealing block (9) is made of polyethylene material.