Pleuroperitoneal cavity drainage seepage collecting device
By designing a thoracic and abdominal cavity drainage exudate collection device with a fixed plate and isolation cover, the problems of drainage tube irritation of the wound and infection risk were solved, achieving stable wound fixation and multi-directional drainage of exudate, thus improving the patient's recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-07
AI Technical Summary
The existing drainage tubes, when left directly in the wound, can easily irritate surrounding tissues, increase the risk of retrograde bacterial infection, and damage the wound integrity during removal, thus affecting patient recovery.
A device for collecting pleural and abdominal cavity drainage exudate, comprising a fixation plate, an isolation cover, and a drainage tube, was designed. The fixation plate is equipped with an arc-shaped extension wing and adhesive. The isolation cover is connected to the drainage tube and is used to fix and isolate the wound outside the wound. The drainage tube is equipped with a one-way valve and a connector. The comfort and stability are improved by using medical silicone and pressure-sensitive adhesive materials.
It avoids direct irritation of the wound by the drainage tube, reduces the chance of retrograde bacterial infection, maintains wound integrity, improves comfort and fixation stability, and adapts to exudate drainage in different body positions.
Smart Images

Figure CN224085754U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a device for collecting drainage exudate from the pleural and abdominal cavities. Background Technology
[0002] In the medical field, when patients suffer from pleural effusion, peritonitis, abdominal tumors, or other thoracic and abdominal diseases, or experience thoracic and abdominal trauma, or undergo thoracic and abdominal surgery, the thoracic and abdominal wounds will continuously produce effusion and exudate. Currently, to avoid the accumulation of exudate hindering wound healing, a common clinical practice is to use a drainage tube directly inserted through the thoracic and abdominal wound to drain the exudate into a drainage bag. However, this drainage method has certain drawbacks. First, leaving the drainage tube in the wound can easily irritate the surrounding tissues, especially when the patient turns over or coughs, as the friction between the drainage tube and the wound tissue can exacerbate wound pain, which is particularly severe in the early stages of placement. Second, the direct connection between the drainage tube and the wound increases the chance of retrograde bacterial infection. Bacteria can easily enter the thoracic and abdominal cavities through the gap between the drainage tube and the wound, and improper care can easily lead to wound infection, and may even cause intrathoracic and abdominal infection. In addition, after the drainage tube is removed, the integrity of the wound will be compromised, healing will be slow, and the patient's recovery process will be delayed. Utility Model Content
[0003] To address the above problems, the purpose of this utility model is to provide a device for collecting pleural and abdominal drainage exudate, which solves the problems that directly leaving the drainage tube in the wound can easily irritate the surrounding tissues, increase the chance of retrograde bacterial infection, and damage the integrity of the wound when it is removed.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a thoracic and abdominal cavity drainage exudate collection device, comprising a fixing plate, wherein symmetrical arc-shaped extension wings are provided on both sides of the upper end and both sides of the lower end of the fixing plate to increase the adhesive area and distribute the force, an isolation cover is provided at the front end of the fixing plate, and an adhesive is coated at the rear end, a through hole is provided on the fixing plate for accommodating the wound, the isolation cover is connected to a drainage tube for draining exudate, a one-way valve is provided in the drainage tube, and a connector is provided at the tail end of the drainage tube for connecting to an external drainage bag, and release paper is adhered to the adhesive, and the release paper is provided with cutting lines and scales.
[0005] The beneficial effects of this invention are as follows: By using this device to adhere to the skin at the outer end of the wound, it can avoid the risk of directly leaving the drainage tube in the wound, which could easily irritate the surrounding tissues, and the inability to preserve the integrity of the wound when removing it. At the same time, the isolation cover isolates the wound from the outside world, which can also effectively block the passage of bacteria from the gap between the drainage tube and the wound into the thoracic and abdominal cavities, reducing the chance of retrograde bacterial infection.
[0006] To improve fixation stability:
[0007] As a further improvement to the above technical solution: the fixed disk is shaped like a butterfly.
[0008] The beneficial effects of this improvement are as follows: By setting symmetrical arc-shaped extension wings on both sides of the upper and lower ends of the fixing plate, the shape of the fixing plate resembles a butterfly. This not only increases the removal area between the fixing plate and the skin, allowing the adhesive to adhere more widely to the skin, but also evenly distributes the tension and improves the fixing stability.
[0009] To facilitate multi-directional drainage of seepage from the isolation enclosure:
[0010] As a further improvement to the above technical solution: the upper end of the drainage tube is partially surrounded by the outer end of the isolation cover, and the part of the drainage tube that contacts the isolation cover is provided with a drainage port for draining exudate, so as to drain exudate from multiple directions and adapt to the use of the patient when standing, sitting or lying down.
[0011] The beneficial effects of this improvement are: drainage ports for draining exudate are provided at the contact points between the drainage tube and the isolation cover, allowing for multi-directional drainage while the patient is standing, sitting, or lying down.
[0012] To facilitate the removal of the release paper:
[0013] As a further improvement to the above technical solution: a release tab is provided at the edge of the release paper.
[0014] The beneficial effect of this improvement is that by setting up a peeling plate at the edge of the release paper, it is easier to peel the release paper from behind the fixing plate.
[0015] To facilitate the cutting of the expansion hole for the fixing plate:
[0016] As a further improvement to the above technical solution: the number of cutting lines is several, and the several cutting lines are all circular with gradually increasing radii, forming a multi-layered structure similar to concentric circles, and each scale value is located at each cutting line.
[0017] The beneficial effect of this improvement is that, when using it, the through hole of the fixing plate can be expanded to accommodate wounds of different sizes simply by cutting along the corresponding size cutting line according to the scale.
[0018] To facilitate connection with connectors for different types of drainage bags:
[0019] As a further improvement to the above technical solution: the connector is shaped like a pagoda.
[0020] The beneficial effect of this improvement is that the pagoda-shaped connector can be adapted to connect with different models of drainage bag connectors.
[0021] To avoid skin irritation and improve user comfort:
[0022] As a further improvement to the above technical solution: the fixing plate is made of medical-grade silicone material, and the adhesive is medical-grade pressure-sensitive adhesive.
[0023] The beneficial effects of this improvement are as follows: the fixing plate is made of medical-grade silicone material, which has excellent biocompatibility. This not only avoids skin irritation, but also, due to its good flexibility, it can adapt to the shape and movement of human skin, reducing pressure and friction on the skin and improving user comfort. The adhesive is made of medical-grade pressure-sensitive adhesive, which has good adhesion and biocompatibility, reducing skin irritation and allergic reactions.
[0024] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the front end structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the rear structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the release paper removal structure of this utility model;
[0028] Figure 4 This is a side sectional view of the present invention;
[0029] In the diagram: 1. Fixed plate; 101. Extension wing; 2. Isolation cover; 3. Adhesive; 4. Through hole; 5. Drainage tube; 6. One-way valve; 7. Connector; 8. Release paper; 801. Peeling sheet; 9. Cutting line; 10. Scale. Detailed Implementation
[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0031] like Figure 1-4As shown, a device for collecting pleural and abdominal drainage exudate includes a fixing plate 1. Symmetrical arc-shaped extension wings 101 are provided on both the upper and lower sides of the fixing plate 1 to increase the adhesive area and distribute force. An isolation cover 2 is provided at the front end of the fixing plate 1, while its rear end is coated with adhesive 3. A through hole 4 is provided on the fixing plate 1 for accommodating the wound. The isolation cover 2 is connected to a drainage tube 5 for draining exudate. A one-way valve 6 is provided in the drainage tube 5, and a connector 7 is provided at the tail end of the drainage tube 5 for connecting to an external drainage bag. Release paper 8 is adhered to the adhesive 3, and the release paper 8 has cutting lines 9 and scales 10. This device is used to adhere to the skin outside the wound, thus avoiding... Directly leaving the drainage tube 5 inside the wound avoids irritating surrounding tissues and compromises wound integrity during removal. Simultaneously, the isolation cover 2 isolates the wound from the outside environment, effectively blocking bacteria from entering the thoracic and abdominal cavities through the gap between the drainage tube 5 and the wound, reducing the chance of retrograde infection. The fixation plate 1 is butterfly-shaped, with symmetrical arc-shaped extension wings 101 on both the upper and lower sides, increasing the removal area between the fixation plate 1 and the skin, allowing the adhesive 3 to adhere more extensively to the skin, and evenly distributing tension to improve fixation stability. The upper end of the drainage tube 5 is partially enclosed by the outer end of the isolation cover 2, and openings are provided at the points where the drainage tube 5 contacts the isolation cover 2. The device includes drainage ports for draining exudate, allowing for multi-directional drainage to accommodate patients in standing, sitting, or lying positions. Drainage ports are located at the contact points between the drainage tube 5 and the isolation cover 2, enabling multi-directional drainage from the patient's position. A peeler 801 is provided at the edge of the release paper 8, facilitating easy removal of the release paper 8 from behind the fixing plate 1. Several cutting lines 9 are present, each ring-shaped with gradually increasing radii, forming a multi-layered structure resembling concentric circles. Each scale 10 value is located at a specific cutting line 9. During use, the device simply cuts the paper according to the scale 10, following the corresponding dimensions. Line 9 cuts the through hole 4 of the fixing plate 1 to expand the through hole 4 to accommodate wounds of different sizes. The connector 7 is shaped like a pagoda, which allows it to be connected to different types of drainage bag connectors. The fixing plate 1 is made of medical-grade silicone material, while the adhesive 3 is made of medical-grade pressure-sensitive adhesive. The fixing plate 1, being made of medical-grade silicone material, has excellent biocompatibility, which not only avoids skin irritation but also adapts to the shape and movement of human skin due to its good flexibility, reducing pressure and friction on the skin and improving user comfort. The adhesive 3, being medical-grade pressure-sensitive adhesive, has good adhesion and biocompatibility, reducing skin irritation and allergic reactions.
[0032] The working principle of this utility model is as follows: When in use, simply cut the fixing plate 1 along the corresponding size cutting line 9 to expand the through hole 4 to accommodate wounds of different sizes. Then, by pinching the peeling piece 801 at the edge of the release paper 8, the release paper 8 is peeled off from the back of the fixing plate 1. At this time, simply align the through hole 4 with the wound and use the adhesive 3 to fix the position of the fixing plate 1. When the fixing plate 1 is located at the outer end of the wound, the isolation cover 2 at the front end of the fixing plate 1 can cover the wound, isolate the wound from the external environment, and thus reduce the chance of bacterial infection. When exudation occurs, the exudate flows into the isolation cover 2 and can be drained through the drainage tube 5 connected to the drainage bag.
[0033] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A device for collecting pleural and abdominal cavity drainage exudate, comprising a fixing plate (1), characterized in that: The upper and lower sides of the fixing plate (1) are provided with symmetrical arc-shaped extension wings (101) to increase the bonding area and distribute the force. The fixing plate (1) is provided with an isolation cover (2) at the front end and coated with adhesive (3) at the rear end. The fixing plate (1) is provided with a through hole (4) to accommodate the wound. The isolation cover (2) is connected to the drainage tube (5) for drainage of exudate. The drainage tube (5) is provided with a one-way valve (6) and the tail end of the drainage tube (5) is provided with a connector (7) for connecting to an external drainage bag. The adhesive (3) is covered with release paper (8) and the release paper (8) is provided with cutting lines (9) and scales (10).
2. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: The fixed disk (1) is shaped like a butterfly.
3. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: The upper end of the drainage tube (5) is partially surrounded by the outer end of the isolation cover (2), and the drainage tube (5) is provided with drainage ports for draining exudate at the part that contacts the isolation cover (2) for multi-directional drainage of exudate, so as to adapt to the use of the patient standing, sitting or lying down.
4. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: A release tab (801) is provided at the edge of the release paper (8).
5. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: The number of cutting lines (9) is several, and the cutting lines (9) are all circular with gradually increasing radii, forming a multi-layered structure similar to concentric circles. Each scale (10) value of the scale (10) is located at each cutting line (9).
6. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: The connector (7) is shaped like a pagoda.
7. The device for collecting pleural and abdominal cavity drainage exudate according to claim 1, characterized in that: The fixing plate (1) is made of medical silicone material, while the adhesive (3) is medical pressure-sensitive adhesive.