Improved thoracic cavity closed drainage device
By introducing an extension tube, heparin cap, stop valve, roller adjustment switch and anti-bending structure into the closed chest drainage device, the infection and bending problems caused by poor drainage are solved, and a safe and controllable drainage effect is achieved.
Patent Information
- Application Number
- CN202422198731.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing closed chest drainage devices are prone to bacterial infection when drainage is not smooth, and lack effective anti-bending and control structures, which affects the drainage effect.
An extension tube and a heparin cap are set at the side opening of the three-way connection, equipped with a stop valve and a roller adjustment switch, and an anti-bending structure and anti-pulling design are added to ensure the airtightness and controllability of the drainage tube.
Effectively prevent bacterial infection, ensure smooth drainage, control drainage volume, avoid bending of drainage tube, and improve safety of use and convenience of operation.
Smart Images
Figure CN223365954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chest cavity closed drainage, in particular to an improved chest cavity closed drainage device. Background Art
[0002] Closed chest drainage is widely used in the drainage of hemothorax, pneumothorax, empyema and after thoracotomy to drain the gas and liquid in the chest cavity, reestablish the negative pressure in the pleural cavity and promote lung re-expansion. Figure 1 As shown, it includes a first drainage tube on the upper side, a connector is fixedly provided on the top of the first drainage tube, the bottom of the first drainage tube is fixedly connected to the upper opening of the vertical tee, a second drainage tube is provided below the tee, the top of the second drainage tube is connected to the lower opening of the tee through a joint, an end cap 21 is provided at the side opening of the tee, the lower end of the second drainage tube is connected to the drainage bottle, an air filter plug is provided on the top of the drainage bottle, and a drain pipe is provided at the bottom of one side of the drainage bottle.
[0003] The above-mentioned drainage device can discharge the gas and liquid in the chest cavity. However, when the conventional chest closed drainage device is blocked, it is usually necessary to use a syringe to connect the side opening of the tee to perform negative pressure suction to prevent blockage. Every time the side opening of the tee is connected to a syringe for negative pressure suction, the end cap 21 needs to be unscrewed. After the end cap 21 is unscrewed, the third joint is in an open state, which makes it easy for bacteria and viruses to enter and cause infection in the patient. In addition, there is no switch on the drainage pipeline, which is not convenient for handling when the drainage is blocked. There is no anti-bending structure on the drainage tube, and the drainage tube may be bent and cut off. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides an improved closed chest drainage device. The device is equipped with an extended suction structure at the three-way side opening to prevent bacteria from entering through the opening. It is also equipped with a switch and an anti-bending structure to prevent pressure and control the opening and closing of the drainage tube, effectively solving the problems raised in the background technology.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an improved closed chest drainage device, comprising a first drainage tube on the upper side, a connector fixedly provided at the top of the first drainage tube, a bottom of the first drainage tube fixedly connected to the upper opening of a vertical tee, a second drainage tube provided below the tee, the top of the second drainage tube connected to the lower opening of the tee via a connector, the lower end of the second drainage tube connected to a drainage bottle, an air filter plug provided at the top of the drainage bottle, a drain pipe provided at the bottom of one side of the drainage bottle, the side opening of the tee fixedly connected to one end of an extension tube, and a heparin cap provided at the outer end of the extension tube;
[0006] The extension pipe is provided with a stop valve;
[0007] The first drainage tube is provided with a roller adjustment switch.
[0008] As a preferred technical solution, both the first drainage tube and the second drainage tube are provided with an anti-bending structure.
[0009] As a preferred technical solution, the anti-bending structure includes hard rings fixedly sleeved on the first drainage tube and the second drainage tube at intervals.
[0010] As a preferred technical solution, the damping rotating sleeve on the lower side of the tee is provided with an anti-pull structure.
[0011] As a preferred technical solution, the anti-pull structure includes a sleeve that is rotated and damped on the tee, the outer side of the sleeve is bonded and fixed to the outer surface of the fixing belt, and the two ends of the fixing belt are respectively provided with matching Velcro strips.
[0012] As a preferred technical solution, vertical flexible cylinders are fixedly bonded at intervals on the inner surface of the fixing belt.
[0013] Compared with the prior art, the present invention provides an improved closed chest drainage device with the following beneficial effects:
[0014] 1. The utility model is fixedly connected to one end of the extension tube through the three-way side opening, and a heparin cap is provided at the outer end of the extension tube, and a stop valve is provided on the extension tube. When in use, the inside of the heparin cap is a rubber plug, which can maintain a sealed state and will not allow the three-way side opening to be exposed. When the chest closed drainage device is not draining smoothly, the needle of the syringe is used to pierce the rubber plug for negative pressure suction to ensure smooth drainage. When the needle is pulled out, the needle puncture hole of the rubber plug returns to its original sealed state, and bacteria and viruses will not enter, thereby preventing the patient from being infected. The stop valve plays a role in preventing reflux, and when necessary, medicine can be injected into the tube through the heparin cap.
[0015] 2. The utility model provides a roller adjustment switch on the first drainage tube. When in use, the roller adjustment switch can control the drainage amount and drainage speed. When replacing the drainage device or performing a leak test, the roller adjustment switch needs to be turned off to close the chest drainage tube. When coughing, chest pain, shortness of breath or decreased blood oxygen saturation occur after the chest drainage tube is placed, the roller adjustment switch also needs to be turned off to clamp the chest drainage tube.
[0016] 3. The utility model includes a hard collar fixedly mounted on the first drainage tube and the second drainage tube at intervals through an anti-bending structure. When in use, the hard collar can effectively resist pressure on the first drainage tube and the second drainage tube, preventing the drainage tube from bending and affecting drainage.
[0017] 4. The utility model includes an anti-pulling structure including a sleeve that is damped and rotated on the tee. The outer side of the sleeve is bonded and fixed to the outer surface of the fixing belt. The two ends of the fixing belt are respectively provided with Velcro that cooperate with each other. The inner surface of the fixing belt is fixed and bonded with vertical flexible cylinders at intervals. When in use, the tee can rotate with damping in the sleeve, which is convenient for adjusting the direction of the tee. The fixing belt can be wrapped and fixed on the patient's body (torso or arm). When the drainage tube is pulled, the tee can be pulled first, and will not cause traction on the drainage source. The flexible cylinder plays a role of spacing and ventilation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of an existing closed chest drainage device;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present utility model;
[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the third embodiment of the present utility model;
[0023] Figure 5 for Figure 4 Enlarged structural diagram of the middle anti-pull structure.
[0024] Markings in the figure: 1. First drainage tube; 11. Connector; 12. Roller adjustment switch; 2. Tee; 21. End cap; 3. Second drainage tube; 31. Connector; 4. Drainage bottle; 41. Air filter plug; 42. Drain tube; 5. Extension tube; 51. Stop valve; 6. Heparin cap; 7. Hard collar; 8. Anti-pull structure; 81. Sleeve; 82. Fixing belt; 83. Velcro; 84. Flexible cylinder. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1
[0026] like Figure 2As shown, an improved closed chest drainage device includes a first drainage tube 1 on the upper side. A connector 11 is fixedly attached to the top of the first drainage tube 1. The bottom of the first drainage tube 1 is fixedly connected to the upper opening of a vertical tee 2. A second drainage tube 3 is disposed below the tee 2. The top of the second drainage tube 3 is connected to the lower opening of the tee 2 via a connector 31. The lower end of the second drainage tube 3 is connected to a drainage bottle 4. An air filter 41 is attached to the top of the drainage bottle 4. A drain pipe 42 (equipped with a ball valve) is attached to the bottom of one side of the drainage bottle 4. The side opening of the tee 2 is fixedly connected to one end of an extension tube 5. The outer end of the extension tube 5 is provided with a heparin cap 6. A stop valve 51 is provided on the extension tube 5. The first drainage tube 1 is provided with a roller adjustment switch 12.
[0027] During use, the heparin cap 6 is filled with a rubber plug, which maintains a sealed state and prevents the two side openings of the three-way connection from being exposed. When the chest closed drainage device is blocked, the needle of a syringe is inserted into the rubber plug to perform negative pressure suction to ensure smooth drainage. When the needle is removed, the needle puncture hole in the rubber plug returns to its original sealed state, preventing bacteria and viruses from entering and preventing patient infection. The stop valve 51 prevents reflux, and if necessary, medication can be injected into the tube through the heparin cap 6. The roller adjustment switch 12 can control the drainage volume and drainage speed; when replacing the drainage device or performing a leak test, the roller adjustment switch 12 needs to be turned off to close the chest drainage tube; when coughing, chest pain, shortness of breath, or decreased blood oxygen saturation occur after the chest drainage tube is placed, the roller adjustment switch 12 also needs to be turned off to clamp the chest drainage tube. Example 2
[0028] like Figure 3 As shown, the first drainage tube 1 and the second drainage tube 3 are both provided with an anti-bending structure.
[0029] The anti-bending structure includes hard collars 7 (nylon) fixedly sleeved on the first drainage tube 1 and the second drainage tube 3 at intervals.
[0030] When in use, the hard collar 7 can effectively resist pressure on the first drainage tube 1 and the second drainage tube 3, thereby preventing the drainage tubes from bending and affecting drainage. Example 3
[0031] like Figure 4 、 Figure 5 As shown, the damping rotation sleeve on the lower side of the tee 2 is provided with an anti-pull structure 8.
[0032] The anti-pull structure 8 includes a sleeve 81 (silicone) that is rotatably sleeved on the tee 2 . The outer side of the sleeve 81 is bonded and fixed to the outer surface of a fixing belt 82 . Both ends of the fixing belt 82 are provided with matching Velcro strips 83 .
[0033] Vertical flexible cylinders 84 (sponge cylinders wrapped with a cloth cover) are fixedly bonded to the inner surface of the fixing belt 82 at intervals.
[0034] During use, the tee 2 can rotate with damping in the sleeve 81, which is convenient for adjusting the direction of the tee 2. The fixing belt 82 can be wrapped and fixed on the patient's body (torso or arm). When the drainage tube is pulled, the tee 2 can be pulled first, and the source of the drainage tube will not be pulled. The flexible cylinder 84 plays a role of spacing and ventilation.
[0035] The components used in the present invention are all universal standard components or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.
[0036] It should be noted that, in this document, the directions or positional relationships indicated by the terms "first", "second", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0037] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not intended to limit the conditions under which the present invention can be implemented. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in this utility model without affecting the effects and purposes that can be achieved by the present utility model.
[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An improved closed chest drainage device, comprising a first drainage tube on the upper side, a connector fixedly provided at the top of the first drainage tube, a bottom of the first drainage tube fixedly connected to the upper opening of a vertical tee, a second drainage tube provided below the tee, the top of the second drainage tube connected to the lower opening of the tee via a connector, the lower end of the second drainage tube connected to a drainage bottle, the top of the drainage bottle being provided with an air filter plug, characterized in that: The side opening of the three-way joint is fixedly connected to one end of the extension tube, and the outer end of the extension tube is provided with a heparin cap; The extension pipe is provided with a stop valve; The first drainage tube is provided with a roller adjustment switch.
2. The improved closed chest drainage device according to claim 1, characterized in that: The first drainage tube and the second drainage tube are both provided with an anti-bending structure.
3. The improved closed chest drainage device according to claim 2, characterized in that: The anti-bending structure includes hard rings fixedly sleeved on the first drainage tube and the second drainage tube at intervals.
4. The improved closed chest drainage device according to claim 1, characterized in that: The damping rotating sleeve on the lower side of the tee is provided with an anti-pull structure.
5. The improved closed chest drainage device according to claim 4, characterized in that: The anti-pull structure includes a sleeve that is damped and rotated on the tee, the outer side of the sleeve is bonded and fixed to the outer surface of the fixing belt, and the two ends of the fixing belt are respectively provided with mutually cooperating Velcro strips.
6. The improved closed chest drainage device according to claim 5, characterized in that: The inner surface of the fixing belt is fixedly bonded with vertical flexible cylinders at intervals.