Pericardial mediastinal drainage device
By introducing a one-way valve and a squeezing device into the pericardial-mediastinal drainage device, the problems of tube blockage and air leakage were solved, enabling smooth collection of drainage fluid and maintenance of negative pressure, improving drainage efficiency and safety, and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE UNIVERSITY OF HONG KONG SHENZHEN HOSPITAL
- Filing Date
- 2025-03-25
- Publication Date
- 2026-07-14
Smart Images
Figure CN224484582U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage device technology, and more specifically, to a pericardial mediastinal drainage device. Background Technology
[0002] In the course of cardiac surgery, pericardial-mediastinal drainage is an important part of postoperative management. The main purpose of pericardial-mediastinal drainage is to remove blood and fluid accumulation in the pericardial cavity and mediastinal area to prevent complications such as cardiac tamponade and mediastinal infection. However, existing pericardial-mediastinal drainage devices have a series of problems in use.
[0003] Existing pericardial-mediastinal drainage devices on the market are prone to blockage and air leakage during clinical use. Blockage can lead to poor drainage and affect treatment outcomes, while air leakage can cause serious consequences such as infection. Therefore, we have made improvements to address these issues and proposed a new pericardial-mediastinal drainage device. Utility Model Content
[0004] The purpose of this invention is to address the problems of tube blockage and air leakage that occur easily in the clinical use of existing pericardial mediastinal drainage devices.
[0005] In order to achieve the above-mentioned objectives, this utility model provides a pericardial mediastinal drainage device to improve the above-mentioned problems.
[0006] The application is as follows:
[0007] A pericardial mediastinal drainage device, comprising:
[0008] The connecting tube and the guide tube are both equipped with one-way valves, and the connecting tube is connected to a drainage component.
[0009] An extrusion device is connected between the guide pipe and the connecting pipe, and the extrusion device generates negative pressure through extrusion;
[0010] A collection component, which is connected to a squeezing device, is used to collect drainage fluid and has a graduation scale.
[0011] As a preferred technical solution of this application, the one-way valve is a double-valve structure, and the one-way valve opens when the squeezing device squeezes, allowing the drainage fluid to flow, and the one-way valve remains in a sealed state when the squeezing device is not used.
[0012] As a preferred technical solution of this application, the extrusion device is specifically a transparent hollow elastic ball.
[0013] As a preferred technical solution of this application, the outer surface of the extrusion device is provided with anti-slip texture, which is distributed in a grid pattern.
[0014] As a preferred technical solution of this application, the drainage assembly includes a mediastinal drainage tube and a pericardial drainage tube, both of which are fixedly connected to the end of the connecting tube away from the compression device.
[0015] As a preferred technical solution of this application, the collection component includes a sub-bag connected to the guide tube, and a mother bag is provided on the outer surface of the sub-bag, with scales provided on the mother bag and the sub-bag.
[0016] As a preferred technical solution of this application, the guide tube and the sub-bag are connected by a detachable spiral interface.
[0017] As a preferred technical solution of this application, the bottom of the sub-bag has a liquid discharge switch.
[0018] As a preferred technical solution of this application, both the mother bag and the daughter bag are transparent to allow for observation of the drainage fluid in conjunction with the scale.
[0019] As a preferred technical solution of this application, a drain valve is provided at the bottom of the mother bag, which is used to drain the liquid inside the mother bag.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] In the scheme of this application:
[0022] To address the issues of tube blockage and air leakage that commonly occur with existing mediastinal drainage devices in clinical use, this application introduces a one-way valve and a squeezing device. This design enables easy collection of drainage fluid and maintenance of negative pressure, effectively reducing the risk of tube blockage and air leakage, thereby improving drainage efficiency and safety. Specifically, the one-way valve opens when the squeezing device is applied, allowing drainage fluid to flow. When the device is not squeezed, the one-way valve remains closed. Repeated squeezing of the device generates negative pressure, helping the drainage fluid to flow out more smoothly, thus reducing the risk of tube blockage and air leakage. Attached Figure Description
[0023] Figure 1 A schematic diagram of the pericardial mediastinal drainage device provided in this application;
[0024] Figure 2 A front view schematic diagram of the pericardial mediastinal drainage device provided in this application;
[0025] Figure 3 A partial cross-sectional structural schematic diagram of the pericardial mediastinal drainage device provided in this application;
[0026] Figure 4 This is a schematic diagram of the structure of the mother bag and daughter bag of the pericardial mediastinal drainage device provided in this application.
[0027] The image shows:
[0028] 1. Drainage assembly; 101. Mediastinal drainage tube; 102. Pericardial drainage tube; 2. Connecting tube; 3. Compression device; 5. Mother bag; 501. Drainage valve; 503. Daughter bag; 6. One-way valve; 7. Drainage tube. Detailed Implementation
[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0032] Example 1, please refer to Figures 1-4 A pericardial mediastinal drainage device, comprising:
[0033] The connecting tube 2 and the guide tube 7 are both equipped with one-way valves 6, and the connecting tube 2 is connected to the drainage component 1.
[0034] The squeezing device 3 is connected between the drainage tube 7 and the connecting tube 2. The squeezing device 3 forms negative pressure by squeezing to keep the drainage smooth. The squeezing device 3 generates negative pressure by applying external force. This negative pressure can actively overcome the resistance that may be encountered during the drainage process. The continuous and stable negative pressure environment can make the drainage fluid flow out of the patient's body continuously.
[0035] The collection component, connected to the squeezing device 3, is used to collect drainage fluid and has a scale. The precise markings on the scale allow medical staff to read the drainage volume intuitively and accurately at the first moment without the need for additional measuring tools and complicated measurement procedures. This convenient design provides key data support for medical diagnosis and treatment. Doctors can adjust the treatment plan in a timely manner and judge the patient's condition trend based on the real-time drainage volume data.
[0036] Furthermore, the one-way valve 6 has a double-valve structure. The one-way valve 6 opens when the squeezing device 3 is squeezed, allowing the drainage fluid to flow. The one-way valve 6 remains in a closed state when the squeezing device 3 is not squeezed. When the one-way valve 6 is squeezed, the two valves of the one-way valve 6 will open, allowing the liquid to flow downward. When not squeezed, it remains in a closed state, reducing leakage and contamination of the drainage fluid, while also meeting the control and sensing requirements.
[0037] Furthermore, the squeezing device 3 is specifically a transparent hollow elastic ball. The use of transparent material allows medical staff to clearly observe the drainage fluid in the squeezing device 3, as well as the operating status of the squeezing device 3 itself. This helps medical staff to promptly identify potential problems, such as poor drainage or device damage, and take corresponding solutions. At the same time, the elastic design of the elastic ball provides medical staff with a comfortable and efficient squeezing experience. During the squeezing process, the elastic ball can quickly return to its original shape, facilitating the next squeezing operation, greatly improving drainage efficiency and reducing the operational burden on medical staff.
[0038] Furthermore, the outer surface of the squeezing device 3 is provided with anti-slip texture, which is distributed in a grid pattern to increase the friction between the hands of medical staff and the squeezing device 3 during squeezing operations, and reduce the squeezing device 3 from slipping during operation.
[0039] Example 2 further optimizes the pericardial mediastinal drainage device provided in Example 1, specifically, as follows: Figures 1-3 As shown, the drainage assembly 1 includes a mediastinal drainage tube 101 and a pericardial drainage tube 102. Both the mediastinal drainage tube 101 and the pericardial drainage tube 102 are fixedly connected to the end of the connecting tube 2 away from the compression device 3. The two drainage tubes are precisely targeted at the mediastinum and the pericardium, respectively, and can carry out drainage work at the same time. This efficient design can significantly reduce drainage time and reduce the potential risks caused by multiple operations or long-term drainage with a single drainage tube.
[0040] Example 3 further optimizes the pericardial-mediastinal drainage device provided in Example 1 or 2, specifically, as follows: Figure 2 and Figure 4 As shown, the collection assembly includes a sub-bag 503 connected to the drainage tube 7. A mother bag 5 is provided on the outer surface of the sub-bag 503. Scales are provided on the mother bag 5 and the sub-bag 503, allowing the drainage volume to be read directly on the sub-bag 503 and the mother bag 5 without having to pour it out for precise measurement. This improves the accuracy of measurement, especially when the pleural fluid is very small.
[0041] Furthermore, the guide tube 7 is connected to the sub-bag 503 via a detachable spiral interface, which greatly facilitates the replacement, cleaning, and disinfection of the sub-bag 503.
[0042] Furthermore, the bottom of the sub-bag 503 has a drain valve, so that when it is necessary to drain the drainage fluid in the sub-bag 503, medical staff can directly open the drain valve to drain it.
[0043] Furthermore, the mother bag 5 is transparent to allow for observation of the drainage fluid in conjunction with the scale. Changes in the color of the drainage fluid may indicate bleeding or infection in the patient, and changes in its properties, such as whether it is cloudy or contains flocculent material, can also provide doctors with important diagnostic clues. This intuitive information is of great significance for doctors to understand changes in the patient's condition in a timely manner and make accurate diagnostic and treatment decisions.
[0044] Furthermore, such as Figure 2 As shown, a drain valve 501 is provided at the bottom of the mother bag 5, which is used to drain the liquid inside the mother bag 5.
[0045] The sub-bag 503 is connected to the drainage tube 7 and can directly receive the drainage fluid flowing out of the patient's body through the squeezing device 3 and the drainage tube 7, playing a role in preliminary collection and measurement. The bottom of the sub-bag 503 is pointed, which further improves the measurement accuracy of small amounts of drainage fluid. When the amount of drainage fluid is small, the liquid will accumulate at the pointed bottom, making the liquid level corresponding to the scale clearer, and medical staff can read the volume of drainage fluid more accurately. The mother bag 5, as the main container for the final collection of drainage fluid, has a large capacity and can store a large amount of drainage fluid flowing in from the sub-bag 503, ensuring that there is enough storage space for drainage fluid throughout the drainage process.
[0046] Traditional drainage bottle designs often present the problem of inconvenience in pouring, especially when the drainage fluid is small, making accurate measurement extremely difficult. This not only affects the accuracy of treatment but also increases the difficulty of operation for nurses. In addition, although some drainage bottles are equipped with graduations, in actual operation, it is still necessary to pour out the drainage fluid for accurate measurement. This step is not only cumbersome but also prone to cross-infection, which does not meet the infection control requirements of modern medicine.
[0047] This application, through the design of the squeezing device 3, the one-way valve 6, and the mother bag 5, can collect the inflowing drainage fluid. The graduated mother bag 5 and daughter bag 503 design allows the drainage fluid to be accurately measured directly in the mother bag 5 and daughter bag 503 without having to pour it out and then measure it, which greatly simplifies the operation process, reduces the workload of nurses, and also reduces the risk of cross-infection.
[0048] The design of the drain valve 501 at the bottom of the mother bag 5 solves the problem of the existing drainage bottle having its pouring spout at the top, making it inconvenient to pour liquid.
[0049] In use, the drainage fluid enters the connecting tube 2 through the mediastinal drainage tube 101 and the pericardial drainage tube 102. When the squeezing device 3 is squeezed, the one-way valve 6 opens, allowing the drainage fluid to enter the sub-bag 503 through the squeezing device 3 and the guide tube 7 for measurement. The drainage fluid can be measured by observing the scale on the sub-bag 503. After measurement, the drain valve is opened to allow the drainage fluid in the sub-bag 503 to enter the mother bag 5, and the drain valve 501 is opened to drain the liquid in the mother bag 5.
[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0051] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A pericardial mediastinal drainage device, characterized in that, include: The connecting tube (2) and the guide tube (7) are provided with one-way valves (6), and the connecting tube (2) is connected to the drainage component (1); The extrusion device (3) is connected between the guide pipe (7) and the connecting pipe (2), and the extrusion device (3) generates negative pressure by extrusion; A collection component is connected to the squeezing device (3) for collecting drainage fluid, and the collection component has a scale.
2. The pericardial mediastinal drainage device according to claim 1, characterized in that, The one-way valve (6) has a double valve structure, and the one-way valve (6) opens when the squeezing device (3) squeezes, allowing the drainage fluid to flow. The one-way valve (6) remains sealed when the squeezing device (3) is not squeezed.
3. A pericardial mediastinal drainage device according to claim 1 or 2, characterized in that, The extrusion device (3) is specifically a transparent hollow elastic ball.
4. A pericardial mediastinal drainage device according to claim 3, characterized in that, The outer surface of the extrusion device (3) is provided with anti-slip texture, which is distributed in a grid pattern.
5. A pericardial mediastinal drainage device according to claim 1, characterized in that, The drainage assembly (1) includes a mediastinal drainage tube (101) and a pericardial drainage tube (102), both of which are fixedly connected to the end of the connecting tube (2) away from the compression device (3).
6. A pericardial mediastinal drainage device according to claim 1, characterized in that, The collection assembly includes a sub-bag (503) connected to the guide tube (7), and a mother bag (5) is provided on the outer surface of the sub-bag (503). Scales are provided on the mother bag (5) and the sub-bag (503).
7. A pericardial mediastinal drainage device according to claim 6, characterized in that, The guide tube (7) and the sub-bag (503) are connected by a detachable spiral interface.
8. A pericardial mediastinal drainage device according to claim 6, characterized in that, The bottom of the sub-bag (503) has a liquid discharge switch.
9. A pericardial mediastinal drainage device according to claim 6, characterized in that, Both the mother bag (5) and the daughter bag (503) are transparent to allow for observation of the drainage fluid in conjunction with the scale.
10. A pericardial mediastinal drainage device according to claim 6, characterized in that, The bottom end of the mother bag (5) is provided with a drain valve (501), which is used to drain the liquid inside the mother bag (5).