An interface device for a chest closed drainage tube

Abstract

The utility model discloses an interface device of closed thoracic drainage pipeline, relates to the field of thoracic drainage tube, one end of first joint is provided with first annular groove, and the first annular groove is provided with the second joint of cylindrical shape, one end of second joint is provided with second annular groove, and second annular groove is provided with third joint, be provided with first acting part on second joint, and first acting part drives second joint to move up and down along the direction of first joint axis, make second joint be located in or outside first annular groove, be provided with second acting part on third joint, and second acting part drives third joint to move up and down along the direction of first joint axis, make third joint be located in or outside second annular groove. The device can match various diameter drainage tubes, when connecting, can quickly match the drainage tube of different diameter, need not to replace the joint, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of chest drainage tubes, specifically to an interface device for a closed chest drainage tube. Background Technology

[0002] A closed chest drainage tube is an important component of a closed chest drainage system. One end is placed inside the chest cavity, and the other end is connected to a water-seal bottle. It is used to drain gas and fluid (such as effusion, hemoptysis, pus, etc.) from the chest cavity, thereby preventing further infection and improving the patient's breathing and circulation. The chest cavity normally has both positive and negative pressure; the pressure can be negative during inhalation and positive during exhalation. If it is not sealed tightly, refluxed air can easily enter the chest cavity. A closed chest drainage tube, along with a water-seal bottle and other devices, ensures a sealed drainage process, preventing outside air from entering the chest cavity.

[0003] Drainage tubes are medical devices used in clinical surgery to drain pus, blood, and fluid accumulated between human tissues or in body cavities to the outside of the body, preventing postoperative infection and promoting wound healing. There are many types of surgical drainage tubes used clinically. Some are used for urinary catheterization, some for wounds, and they are used in the thoracic cavity, brain cavity, gastrointestinal tract, biliary tract, etc. Different drainage tubes have different sizes and inner diameters.

[0004] Most existing chest drainage tubes use a standard connecting tube to connect the output end of the patient's chest drainage tube to a closed chest drainage bottle. However, due to different medical practices among different medical groups, and to accelerate patient recovery, urinary catheters, gastric tubes, or even smaller diameter sterile tubes for other purposes are sometimes chosen for chest drainage. In these cases, the diameter of the drainage tube is smaller than the diameter of the closed chest drainage bottle, requiring medical staff to use connectors for connection. However, when selecting different drainage tubes, medical staff need to match different sized connectors, which is cumbersome and inefficient. Sometimes, the two cannot be tightly connected, increasing the risk of the tube dislodging from the connector. Utility Model Content

[0005] One objective of this invention is to provide an interface device for a closed thoracic drainage tube, which, through a first connector, a second connector, and a third connector, is suitable for the rapid connection of different drainage tubes.

[0006] This objective is achieved using the following technical solution:

[0007] An interface device for a closed thoracic drainage tube includes a cylindrical first connector with openings at both ends. One end of the first connector has a first annular groove, and the other end of the first connector is connected to a water seal bottle. The thickness of the first annular groove is the same as the thickness of a second connector. The first annular groove is used to house a second connector, which is also cylindrical and has openings at both ends. One end of the second connector has a second annular groove, and a third connector is disposed within the second annular groove. The second annular groove is used to house the third connector.

[0008] In its original state, the third connector is located in the second annular groove, and the second connector is located in the first annular groove; during use, the first connector, the second connector, or the third connector is selected according to the size of the drainage tube.

[0009] When the first connector is used, both the second and third connectors are located inside the first connector, and the drainage tube is connected to the first connector;

[0010] When using the second connector, slide the second connector out of the first annular groove and connect the drainage tube to the second connector;

[0011] When using the third connector, slide the second connector out of the first annular groove, and then slide the third connector out of the second annular groove. The drainage tube is then connected to the third connector.

[0012] Compared to existing structures, this structure offers multiple connection sizes, allowing for direct connection of various drainage tubes using only this device, thus simplifying operation. Furthermore, this device enables quick connection between the drainage tube and the water seal bottle, preventing contamination during connection.

[0013] Furthermore, the second connector is provided with a first actuating element, which drives the second connector to move up and down along the direction of the axis of the first connector, so that the second connector is located inside or outside the first annular groove;

[0014] The third connector is provided with a second action member, which drives the third connector to move up and down along the direction of the axis of the first connector, so that the third connector is located inside or outside the second annular groove.

[0015] The first and second actuators enable the second and third connectors to slide out or in quickly, simplifying operation. Specifically, the first and second actuators can have various structures. For example, the first actuator can be a thread located in the first annular groove and on the second connector, with the second connector connected to the first annular groove via a thread; the second actuator can be a thread located in the second annular groove and on the third connector, with the third connector connected to the second annular groove via a thread.

[0016] When the second connector is needed, operate it by rotating the second connector. When the third connector is needed, first rotate the second connector, and then rotate the third connector.

[0017] On the other hand, the inventors provide a simpler operating method that avoids contaminating the drainage tube connection during operation. Specifically, the first actuating element includes a first actuating rod disposed on the second connector and a first sliding groove disposed on the first connector. One end of the first actuating rod passes through the first sliding groove, and the straight line of the first sliding groove is parallel to the axis of the first connector. A first locking groove is disposed at the upper end of the first sliding groove, and the first sliding groove communicates with the first locking groove.

[0018] The second actuating element includes a second actuating rod disposed on the third connector and a second sliding groove disposed on the second connector. One end of the second actuating rod passes through the second sliding groove, and the straight line of the second sliding groove is parallel to the axis of the first connector. A second locking groove is disposed at the upper end of the second sliding groove, and the second locking groove communicates with the second sliding groove.

[0019] When the second connector is needed, it acts on the first actuating rod, causing the first actuating rod to slide upward in the first sliding groove. When the first actuating rod slides to the upper end of the first sliding groove, the second connector moves upward. It acts on the first actuating rod to make the first actuating rod position in the first locking groove. During this process, the first actuating rod drives the second connector to rotate circumferentially. When the first actuating rod is in the first locking groove, the sliding out and position fixing of the second connector is completed.

[0020] When the third connector is needed, the second connector is first slid out. Then, the second actuating rod is applied to the second connector, causing it to move upwards in the second groove, thus sliding the third connector upwards. Once the second actuating rod reaches the upper end of the second groove, it is slid into the second locking groove, causing the third connector to rotate circumferentially, completing the sliding out and fixing of the third connector. Preferably, the angle between the line containing the second locking groove and the line containing the second groove is less than or equal to 90 degrees. The angle between the line containing the first locking groove and the line containing the first groove is also less than or equal to 90 degrees.

[0021] The straight line containing the second locking groove is the sliding direction of the second actuating rod in the second locking groove, and the straight line containing the second sliding groove is the sliding direction of the second actuating rod in the second sliding groove. The straight line containing the first locking groove is the sliding direction of the second actuating rod in the first locking groove, and the straight line containing the first sliding groove is the sliding direction of the second actuating rod in the first sliding groove. The straight lines containing the first and second sliding grooves are parallel to the axis of the first joint.

[0022] Compared with existing connectors, this device is simpler to operate by sliding out the second and third connectors from the sides of the first and second connectors, and it will not come into contact with the connection point to the drainage tube, making it safer and pollution-free.

[0023] Preferably, the end of the second actuating rod furthest from the second connector has a telescopic end. The telescopic end extends or retracts to position one end of the second actuating rod within or through the second slide groove. When it is necessary to slide out the third connector, the second actuating rod extends, with one end outside the second slide groove, facilitating operation by the operator. When it is not necessary to slide out the third connector, the telescopic end of the second actuating rod retracts, positioning one end of the second connector within the second slide groove, thus not obstructing the sliding out of the second connector.

[0024] Furthermore, a first locking slot is vertically connected to a first fixing slot, the first fixing slot communicates with the first locking slot, and the first fixing slot is located below the first locking slot. A second locking slot is vertically connected to a second fixing slot, the second fixing slot communicates with the second locking slot, and the second fixing slot is located below the second locking slot. The first fixing slot and the second fixing slot can further fix the positions of the first actuating rod and the second actuating rod.

[0025] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0026] This invention relates to an interface device for closed thoracic drainage tubes. This device can accommodate drainage tubes of various diameters, allowing for quick and easy connection without the need to change connectors, making operation simple and convenient. Furthermore, by adjusting the connectors, the device allows for the sliding out of the second and third connectors to accommodate drainage tubes of different sizes, making it even more suitable for clinical procedures. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the original state of the device in Example 1;

[0029] Figure 2 This is a schematic diagram of the device structure when the first actuating rod slides to the lower end of the first groove in Embodiment 2.

[0030] Figure 3 This is a schematic diagram of the device structure when the first actuating rod slides to the upper end of the first sliding groove in Embodiment 2.

[0031] Figure 4 This is a schematic diagram of the device structure when the first actuating rod slides into the first locking groove in Embodiment 2.

[0032] Figure 5 This is a schematic diagram of the device structure when the second actuating rod slides to the upper end of the second slide groove in Embodiment 2.

[0033] Figure 6 This is a schematic diagram of the device structure when the second actuating rod slides into the second locking groove in Embodiment 2.

[0034] Figure 7 This is a schematic diagram of the first locking groove and the first fixing groove in Embodiment 2.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 1-First connector, 2-Second connector, 3-Third connector, 4-First slide groove, 5-First locking groove, 51-First fixing groove, 6-First actuating rod, 7-Second slide groove, 8-Second locking groove, 9-Second actuating rod. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0038] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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 limiting the scope of protection of this utility model.

[0039] Example 1

[0040] like Figure 1 As shown, it includes a cylindrical first connector 1, which is open at both the top and bottom. One end of the first connector 1 is provided with a first annular groove, and the other end of the first connector 1 is connected to a water seal bottle. A cylindrical second connector 2 is provided in the first annular groove. The end of the second connector 2 away from the water seal bottle is provided with a second annular groove, and a third connector 3 is provided in the second annular groove.

[0041] In its original state, such as Figure 1As shown, the second connector 2 is located in the first annular groove, and the third connector 3 is located in the second annular groove. When the first connector is needed for connection, the first connector provides two interfaces, namely the inner ring connection of the first connector and the outer ring connection of the first connector. In use, the connection to the inner ring connection of the first connector or the outer ring connection of the first connector is selected according to the size of the drainage tube.

[0042] When it is necessary to connect the second connector, slide the second connector out of the first annular groove and fix the position of the second connector in the first annular groove. When in use, select to connect to the inner ring connection of the second connector or the outer connection of the second connector according to the size of the drainage tube.

[0043] When the third connector needs to be connected, slide out and fix the second connector, then slide the third connector out of the second annular groove and fix the position of the third connector in the second annular groove. When using, select to connect it to the inner ring connection or the outer connection of the third connector according to the size of the drainage tube.

[0044] In this device, when connecting the third connector, the drainage tube does not need to be connected to the second and first connectors; it can be directly connected to the third connector. When connecting the second connector, the drainage tube does not need to be connected to the first and third connectors. The third connector is located in the second annular groove. Therefore, during connection, it can be directly inserted for connection, making the operation simple and convenient.

[0045] In some embodiments, the second connector is threadedly connected to the first annular groove, and the third connector is threadedly connected to the second annular groove. During use, the positions of the first and third connectors are adjusted by rotation.

[0046] In some embodiments, the second connector 2 is provided with a first actuating member, which drives the second connector 2 to move up and down along the axis of the first connector 1, so that the second connector 2 is located inside or outside the first annular groove; the third connector 3 is provided with a second actuating member, which drives the third connector 3 to move up and down along the axis of the first connector 1, so that the third connector 3 is located inside or outside the second annular groove. In some embodiments, the first actuating member and the second actuating member can be any structure that can achieve the above-mentioned effect.

[0047] Example 2

[0048] Based on the above embodiments, such as Figure 2As shown, the first actuating element includes a first actuating rod 6 disposed on the second connector 2 and a first sliding groove 4 disposed on the first connector 1. The straight line of the first sliding groove 4 is parallel to the axis of the first connector 1. One end of the first actuating rod 6 passes through the first sliding groove 4, and the other end of the first actuating rod 6 is connected to the outer surface of the second connector 2. A first locking groove 5 is disposed at the upper end of the first sliding groove 4, and the first sliding groove 4 communicates with the first locking groove 5. The angle between the straight line of the first locking groove 5 and the straight line of the first sliding groove 4 is less than or equal to 90 degrees.

[0049] The second actuating element includes a second actuating rod 9 disposed on the third connector 3 and a second sliding groove 7 disposed on the second connector 2. One end of the second actuating rod 9 passes through the second sliding groove 7, and the straight line of the second sliding groove 7 is parallel to the axis of the first connector 1. A second locking groove 8 is disposed at the upper end of the second sliding groove 7, and the second locking groove 8 communicates with the second sliding groove 7. The angle between the straight line of the second locking groove 8 and the straight line of the second sliding groove 7 is less than or equal to 90 degrees.

[0050] When the first connector is needed, the first action rod 6 is located at the lower end of the first slide groove 4, the second connector is located inside the first connector, and the third connector is located inside the second connector.

[0051] When the second connector is needed, the first actuating rod 6 slides upward in the first groove. When the first actuating rod slides to the upper end of the first groove, the second connector is located outside the first connector, as shown below. Figure 3 As shown. Then, the first actuating rod 6 is slid into the first locking groove 5. During this process, the first actuating rod drives the second connector to rotate circumferentially, as shown. Figure 4 As shown, the second connector is located outside the first connector, and the position of the second connector is fixed. After the second connector is slid out and fixed in position, the operator connects the drainage tube to the outer or inner connection of the second connector.

[0052] When the third connector is needed, after the second connector slides out and is fixed in position, the second actuating rod 9 is slid upward in the second groove. When the second actuating rod slides to the upper end of the second groove, as... Figure 5 As shown, the third connector is located outside the second connector. Then, the second actuating rod slides into the second locking groove 8. During this process, the second actuating rod drives the third connector to rotate circumferentially, as... Figure 6 As shown, the second action rod and the third connector are fixed in position, and the third connector is slid out and fixed in position. The operator connects the drainage tube to the outer or inner connection of the third connector.

[0053] In some embodiments, such as Figure 7As shown, a first locking groove 5 is vertically connected to a first fixing groove 51, the first fixing groove 51 communicates with the first locking groove 5, and the first fixing groove 51 is located below the first locking groove 5. A second locking groove 8 is vertically connected to a second fixing groove, the second fixing groove communicates with the second locking groove 8, and the second fixing groove is located below the second locking groove 8.

[0054] During use, the length of the second connector outside the first connector and the length of the third connector outside the second connector can be adjusted as needed. Furthermore, the inner and outer diameters of the first, second, and third connectors can also be adjusted according to actual usage requirements.

[0055] Example 3

[0056] Based on the above embodiments, the inner bottom of the first annular groove is connected to the lower end of the first elastic block, the upper end of the first elastic block is connected to the lower end of the second connector, and a first movable groove is provided in the lower end of the second connector. When the second connector rotates, the upper end of the first elastic block slides in the first movable groove.

[0057] The bottom of the second annular groove is connected to the lower end of the second elastic block, the upper end of the second elastic block is connected to the lower end of the third connector, and a second movable groove is provided in the lower end of the third connector. When the third connector rotates, the upper end of the second elastic block slides in the second movable groove.

[0058] The first and second elastic blocks are elastic. When the second and third joints move upward, the first and second elastic blocks stretch. When the second and third joints move downward, the second elastic block shortens.

[0059] The first elastic block is used to prevent the second connector from sliding out of the first annular groove. The second elastic block is used to prevent the third connector from sliding out of the first annular groove.

[0060] In some embodiments, the end of the second actuating rod 9 away from the second connector 2 is provided with a telescopic end, which extends and retracts to place one end of the second actuating rod 9 in or through the second slide groove 7.

[0061] When the second connector is located in the first annular groove, the telescopic end shortens, so that one end of the second action rod is located in the second slide groove 7, thus preventing the second connector from being obstructed when it slides into the first annular groove.

[0062] When the second connector is outside the first connector, the telescopic end extends, so that one end of the second action rod is outside the second slide groove 7, making the operation more convenient when the operator acts on the second action rod.

[0063] In some embodiments, the telescopic end can be an elastic wedge. When the second joint is located inside the first joint, the wedge is subjected to pressure and moves toward the inside of the second groove under the action of the first joint. When the second joint is located outside the first joint, the wedge is not subjected to external force and moves toward the direction away from the inside of the second groove, so that one end of the second action rod is located outside the second groove 7.

[0064] The terms "first," "second," and "third" used in this document are merely for clarity of description and are not intended to restrict any order or emphasize importance. Furthermore, the term "connection" used in this document, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An interface device for a closed thoracic drainage tube, characterized in that, The device includes a first cylindrical connector (1), one end of which is provided with a first annular groove, a second cylindrical connector (2) is provided inside the first annular groove, one end of which is provided with a second annular groove, and a third connector (3) is provided inside the second annular groove; a first actuating element is provided on the second connector (2), and the first actuating element drives the second connector (2) to move up and down along the axis of the first connector (1), so that the second connector (2) is located inside or outside the first annular groove; The third connector (3) is provided with a second action member. The second action member drives the third connector (3) to move up and down along the axis of the first connector (1) so that the third connector (3) is located inside or outside the second annular groove. The first action member includes a first action rod (6) provided on the second connector (2) and a first sliding groove (4) provided on the first connector (1). One end of the first action rod (6) passes through the first sliding groove (4). The straight line of the first sliding groove (4) is parallel to the axis of the first connector (1). The upper end of the first sliding groove (4) is provided with a first locking groove (5). The first sliding groove (4) is connected to the first locking groove (5).

2. The interface device for a closed thoracic drainage tube according to claim 1, characterized in that, The second action component includes a second action rod (9) disposed on the third connector (3) and a second slide groove (7) disposed on the second connector (2). One end of the second action rod (9) passes through the second slide groove (7), and the straight line of the second slide groove (7) is parallel to the axis of the first connector (1).

3. The interface device for a closed thoracic drainage tube according to claim 2, characterized in that, The upper end of the second slide (7) is provided with a second locking groove (8), which is connected to the second slide (7).

4. The interface device for a closed thoracic drainage tube according to claim 3, characterized in that, The angle between the straight line containing the second locking groove (8) and the straight line containing the second sliding groove (7) is less than or equal to 90 degrees.

5. The interface device for a closed thoracic drainage tube according to claim 2, characterized in that, The second action rod (9) is provided with a telescopic end at the end away from the second joint (2). The telescopic end extends and retracts so that one end of the second action rod (9) is located in or passes through the second slide groove (7).

6. The interface device for a closed thoracic drainage tube according to claim 1, characterized in that, The first locking groove (5) is vertically connected to the first fixing groove (51), the first fixing groove (51) is connected to the first locking groove (5), and the first fixing groove (51) is located below the first locking groove (5).

7. The interface device for a closed thoracic drainage tube according to claim 3, characterized in that, The second locking groove (8) is vertically connected to the second fixing groove, the second fixing groove is connected to the second locking groove (8), and the second fixing groove is located below the second locking groove (8).

8. The interface device for a closed thoracic drainage tube according to claim 1, characterized in that, The angle between the straight line containing the first locking groove (5) and the straight line containing the first sliding groove (4) is less than or equal to 90 degrees.

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