Improved multichannel drainage tube joint sealing and locking device
By setting up elastic snaps and anti-counterflow valves on the drain pipe joint, and using the bayonets and pressure holes of the joint cap, the firm connection and sealing between the drain pipe and the joint is achieved, solving the problem of leakage easily caused by rotary fixation of traditional threads.
Patent Information
- Application Number
- CN202421412604.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Due to the asymmetric double-cavity design at the connection between the existing drainage tube and the joint, traditional thread rotation fixation is prone to leakage, affecting the sealing and connection firmness.
The improved multi-channel drainage pipe joint sealing and locking device is adopted, including the connector, the drainage pipe and the connector cap. The locking is achieved by setting elastic snaps and anti-counterflow valves on the connector, and the bayonets and pressure holes of the connector cap are used to tighten and fix them through plug-and-removal methods.
Through linear pushing, the drainage pipe is locked, combined with the elastic snap-on two-speed locking and anti-counterflow valve, the leakage at the connection between the drainage pipe and the joint is effectively avoided, ensuring sealing and firmness of the connection.
Smart Images
Figure CN222899992U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to an improved multi-channel drainage tube joint sealing and locking device. Background Art
[0002] At present, the drainage tubes used clinically are gradually changing from single-lumen drainage tubes to multi-lumen drainage tubes. Double-lumen sleeve type, triple-lumen sleeve type, and four-lumen cross type have been preferred by many medical institutions for clinical use due to their large drainage volume, not easily blocked tubes, and flushing function.
[0003] However, whether it is a double-lumen or multi-lumen drainage tube, the joint end after being led out from the patient's body is basically a double-lumen structure. It is still necessary to connect the double-lumen structure end through an adapter and then connect to a negative pressure source. And currently, double-pass and three-pass joints are mainly used clinically to connect the drainage tubes, and the sealing and fixing are carried out by means of screw rotation. However, since the connection part between the drainage tube and the joint is an asymmetric double-lumen design (see Figure 1 ), the traditional screw rotation fixation easily causes the deformation of (see Figure 1 ) part A to generate leakage; at the same time, due to the deformation and displacement of the tube body under pressure during the rotation of the screw structure, the sealing between the tube body and the joint is poor, which easily leads to leakage and has an adverse impact on the drainage treatment of patients. To ensure firm connection and good connection sealing without leakage is a difficult problem faced by product manufacturers. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an improved multi-channel drainage tube joint sealing and locking device in view of the defects and deficiencies of the prior art.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an improved multi-channel drainage tube joint sealing and locking device, including a joint and a drainage tube, and the innovation lies in: it also includes a joint cap. At the same time, elastic buckles are arranged on the joint. After the joint and the drainage tube are communicated, they are locked by the joint cap and the elastic buckles; the elastic buckles are integrally a double-layer wavy structure, with high clamping points and low clamping points; a bayonet is opened at the top of the joint cap, and a pressing hole is opened on the side. The bayonet cooperates with the elastic buckles. The shape of the pressing hole of the joint cap is the same as the outer shape of the interfaces of the drainage tube and the joint, and the three are tightly fixed by means of plugging and unplugging.
[0006] Further, a pair of anti-backflow valves are arranged on the joint.
[0007] Further, the pressing hole of the joint cap has a pair of straight grooves, and at the same time, the interfaces of the drainage tube and the joint also have a pair of straight grooves.
[0008] After adopting the above structure, the beneficial effects of the utility model are as follows:
[0009] 1. The utility model locks the drainage tube on the connector through linear pushing, and the pressing hole of the connector cap is consistent with the outer shapes of the drainage tube and the connector. Through linear pushing, leakage at the connection between the drainage tube and the connector can be avoided. Then, the bayonet of the connector cap is locked with the elastic buckle on the connector, and the elastic buckle can be locked in two gears, solving the leakage problem in clinical use.
[0010] 2. The utility model can inject flushing liquid or normal saline into the drainage cavity through the anti-reflux valve for flushing the drainage cavity to eliminate blockage; it can also inject anti-infective drugs or flush with flushing liquid into the drainage tube through another anti-reflux valve to eliminate the focus. Description of the Drawings
[0011] Figure 1 It is a schematic diagram of a double cavity where the connection part between the existing drainage tube and the connector is asymmetric
[0012] Figure 2 It is a schematic structural diagram of the utility model in the first gear;
[0013] Figure 3 It is a schematic structural diagram of the utility model in the second gear;
[0014] Figure 4 It is the front view of the connector in the utility model;
[0015] Figure 5 It is the side view of the connector in the utility model;
[0016] Figure 6 It is the front view of the connector cap in the utility model;
[0017] Figure 7 It is the side view of the connector cap in the utility model.
[0018] Explanation of the Reference Numerals in the Drawings:
[0019] 1 Connector, 11 Anti-reflux Valve, 2 Drainage Tube, 3 Connector Cap, 31 Bayonet, 32 Pressing Hole, 33 Linear Groove, 4 Elastic Buckle, 41 High Locking Point, 42 Low Locking Point. Detailed Embodiment
[0020] The following further explains the utility model with reference to the drawings.
[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further details the utility model in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0022] Refer to Figure 2-7, an improved multi-channel drainage tube joint sealing and locking device, including joint 1 and drainage tube 2, further including joint cap 3. At the same time, elastic buckle 4 is provided on joint 1. After joint 1 and drainage tube 2 are connected, they are locked through joint cap 3 and elastic buckle 4; the overall elastic buckle 4 is a double-layer wavy structure, with high clamping point 41 and low clamping point 42; a bayonet 31 is opened at the top of joint cap 3, and a pressing hole 32 is opened on the side. The bayonet 31 cooperates with the elastic buckle 4. The shape of the pressing hole 32 of joint cap 3 is the same as the outer shape of the interfaces of drainage tube 2 and joint 1, and the three are pressed and fixed by means of plugging and unplugging. Specifically, first, the drainage tube 2 is sleeved on the interface of joint 1, then the joint cap 3 is sleeved on joint 1, and at the same time the bayonet 31 is sleeved on the low clamping point 42, which is the first-stage clamping (see Figure 2 ), continue to apply force to move the joint cap 3 forward, so that the bayonet 31 is simultaneously sleeved on the high clamping point 41 and the low clamping point 42, which is the second-stage clamping (see Figure 3 ), fix the joint cap 3 to the joint 1. At the same time, the shape of the pressing hole 32 of the joint cap 3 is the same as the outer shape of the interfaces of the drainage tube 2 and the joint 1. During fixation, the pressing hole 32 clamps the drainage tube 2 and the interface of the joint 1, which can prevent leakage at the connection between the drainage tube 2 and the joint 1. Then, the bayonet 31 of the joint cap 3 is locked with the elastic buckle 4 on the joint 1. The elastic buckle 4 can be locked in two stages, solving the leakage problem in clinical use; joint 1 includes double-pass joints, three-pass joints, four-pass joints, etc.
[0023] In this embodiment, a pair of anti-reflux valves 11 are provided on joint 1.
[0024] The anti-reflux valve 11 has two functions:
[0025] 1. During normal drainage, due to the increase of impurities such as blood clots, the drainage cavity may be blocked. The drainage cavity can be flushed by injecting flushing fluid or normal saline into the drainage cavity through the anti-reflux valve 11 to eliminate the blockage phenomenon;
[0026] 2. In some surgeries, due to the long placement time of the drainage tube, wound infections may occur. At this time, anti-infective drugs or flushing fluid can be injected into the drainage tube through the other anti-reflux valve 11 to eliminate the lesion.
[0027] In this embodiment, the pressing hole of the joint cap 3 has a pair of straight grooves 33, and at the same time, the interfaces of the drainage tube and the joint also have a pair of straight grooves. The straight grooves 33 are used for guiding. Through linear pushing, the connection between the drainage tube 2 and the joint 1 is firmly sealed, and through the pressing hole 32 for pressing and fixing, it can be ensured that there is no leakage at the connection between the drainage tube and the joint.
[0028] The above is only used to illustrate the technical solution of the present utility model rather than to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model shall be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.
Claims
1. An improved multi-channel drainage tube joint sealing and locking device, comprising a joint and a drainage tube, characterized in that: It also includes a connector cap, and an elastic buckle is arranged on the connector. After the connector and the drainage tube are connected, they are locked by the connector cap and the elastic buckle; the elastic buckle is a double-layer wave-shaped structure as a whole, with a high clamping point and a low clamping point; a bayonet is provided on the top of the connector cap, and a pressing hole is provided on the side, the bayonet cooperates with the elastic buckle, the shape of the pressing hole of the connector cap is consistent with the interface shape of the drainage tube and the connector, and the three are pressed and fixed by plugging and pulling.
2. The improved multi-channel drainage pipe joint sealing and locking device according to claim 1, characterized in that: A pair of anti-backflow valves are arranged on the joint.
3. The improved multi-channel drainage pipe joint sealing and locking device according to claim 1, characterized in that: The pressure hole of the joint cap is provided with a pair of linear grooves, and the interface between the drainage tube and the joint is also provided with a pair of linear grooves.