Drainage tube assembly with inner sleeve flushing function

Abstract

A drainage tube assembly with an inner sleeve for flushing relates to the technical field of medical instruments and comprises an outer sleeve and the inner sleeve, the head of the far end of the outer sleeve is closed inwards in an arc shape, a plurality of side holes used for draining seepage are formed in the tube wall of the far end of the outer sleeve, a drainage bag connector and a manifold communicated with a tube cavity of the drainage bag connector are arranged at the near end of the outer sleeve, and the manifold is communicated with the drainage bag connector. A steering strip is fixed in a far-end tube cavity of the outer sleeve, a cross-shaped silica gel valve is arranged at a manifold opening, a pull rope is wound on the steering strip, the two ends of the pull rope penetrate through the cross-shaped silica gel valve and extend to the outside of the manifold, a pull ring is fixed to one end of the pull rope, the other end of the pull rope is fixedly connected with the inner sleeve, the inner sleeve is provided with two tube cavities, and the two tube cavities are communicated with each other. The two cavities are respectively a liquid inlet cavity and a liquid extraction cavity. The assembly provided by the utility model is suitable for clinical drainage.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a drainage tube assembly with an inner sleeve for flushing. Background Technology

[0002] In postoperative drainage treatment, a drainage tube is usually placed at the lesion site to drain accumulated fluid, pus, blood, and necrotic tissue. However, because the drainage fluid often contains viscous protein, tissue debris, or blood clots, the drainage tube is prone to blockage during continuous drainage, leading to drainage failure and even serious abdominal infection.

[0003] When a drainage tube becomes blocked and medical staff need to manually flush and clear it, the usual procedure is to insert the external inlet tube and negative pressure tube as an inner sheath into the drainage tube lumen, attempting to push it to the deep part of the blockage or the actual working area in the patient's body that needs cleaning. These soft catheters are very prone to bending, curling, or even knotting when they encounter resistance, making it difficult to smoothly penetrate and reach the target working area in the patient's body that actually needs flushing or aspiration. This leads to unblocking failure, takes a long time, may increase the risk of tube contamination, and affect the patient's recovery process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a drainage tube assembly with an inner sleeve for rapid guiding and flushing.

[0005] To solve the above-mentioned technical problems, this utility model provides a drainage tube assembly with an inner sleeve for flushing, comprising an outer sleeve and an inner sleeve. The distal end of the outer sleeve has an inwardly arc-shaped opening, and multiple side holes for draining exudate are provided on the distal wall of the outer sleeve. The proximal end of the outer sleeve is provided with a drainage bag interface and a manifold communicating with its lumen, wherein:

[0006] A steering bar is fixed inside the distal end of the outer sleeve. A cross-shaped silicone valve is provided at the manifold opening. A pull rope is wound around the steering bar. Both ends of the pull rope pass through the cross-shaped silicone valve and extend to the outside of the manifold. A pull ring is fixed to one end of the pull rope, and the other end of the pull rope is fixed to the inner sleeve. The inner sleeve has two cavities, namely a liquid inlet cavity and a liquid extraction cavity.

[0007] Furthermore, the distal end of the liquid inlet chamber is provided with multiple liquid inlet holes.

[0008] Furthermore, the steering bar is provided with a pull rope groove.

[0009] The drainage tube assembly with inner sleeve flushing provided by this utility model uses a pull rope to pull the inner sleeve, which can quickly pull the inner sleeve to the far end of the outer sleeve, speeding up the drainage tube unblocking process and effectively avoiding pipeline contamination. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the drainage tube assembly with inner sleeve flushing according to an embodiment of the present invention;

[0011] Figure 2 This is a diagram showing the usage status of the drainage tube assembly with inner sleeve flushing according to an embodiment of this utility model. Detailed Implementation

[0012] The embodiments of this utility model are described in further detail below with reference to the accompanying drawings. However, these embodiments are not intended to limit this utility model. Any similar structures or variations thereof that adopt this utility model should be included in the protection scope of this utility model. The commas in this utility model all indicate the relationship between and.

[0013] like Figures 1-2 As shown in the figure, the drainage tube assembly with inner sleeve flushing provided in this utility model embodiment includes an outer sleeve 1 and an inner sleeve. The distal end of the outer sleeve 1 is arc-shaped and tapered inward. Multiple side holes 11 for draining exudate are opened on the distal end of the outer sleeve 1. The proximal end of the outer sleeve 1 is provided with a drainage bag interface and a manifold 12 communicating with its lumen.

[0014] A steering bar 13 is fixed inside the distal end of the outer sleeve 1. A cross silicone valve 14 is provided at the port of the manifold 12. A pull rope 3 is wound around the steering bar 13. Both ends of the pull rope 3 pass through the cross silicone valve 14 and extend to the outside of the manifold 12. A pull ring 31 is fixed at one end of the pull rope 3, and the other end of the pull rope 3 is fixed to the inner sleeve. The inner sleeve has two cavities, namely a liquid inlet cavity 21 and a liquid extraction cavity 22.

[0015] In this embodiment of the present invention, a plurality of liquid inlet holes 211 are provided at the distal end of the liquid inlet chamber 21, and a pull rope groove is provided on the steering bar.

[0016] The components provided by this utility model are suitable for clinical drainage.

[0017] In use, connect the proximal end of the infusion chamber 21 to the infusion bag (not shown in the figure), and connect the proximal end of the suction chamber 22 to the negative pressure device (not shown in the figure).

[0018] When the drainage tube becomes blocked, the pull rope 3 is pulled outward through the pull ring 31 from the outside. The inner cannula is pulled into the manifold 12 by the pull rope 3 and moves along the lumen of the outer cannula 1 to the distal blockage site in the patient's body. Then the negative pressure device is turned on and adjusted, and the fluid is simultaneously flushed and drained through the inner cannula.

[0019] After flushing, remove the inner cannula from the outer cannula 1. If the drainage tube becomes blocked again, repeat the above steps to clean it until the drainage treatment is completed.

Claims

1. A drainage tube assembly with an inner sleeve for flushing, comprising an outer sleeve and an inner sleeve, wherein the distal end of the outer sleeve has an inwardly arc-shaped opening, and the distal wall of the outer sleeve has multiple side holes for draining exudate, and the proximal end of the outer sleeve has a drainage bag interface and a manifold communicating with its lumen, characterized in that: A steering bar is fixed inside the distal end of the outer sleeve. A cross-shaped silicone valve is provided at the manifold opening. A pull rope is wound around the steering bar. Both ends of the pull rope pass through the cross-shaped silicone valve and extend to the outside of the manifold. A pull ring is fixed to one end of the pull rope, and the other end of the pull rope is fixed to the inner sleeve. The inner sleeve has two cavities, namely a liquid inlet cavity and a liquid extraction cavity.

2. The drainage tube assembly with inner sleeve flushing according to claim 1, characterized in that: The distal end of the liquid inlet chamber is provided with multiple liquid inlet holes.

3. The drainage tube assembly with inner sleeve flushing according to claim 1, characterized in that: The steering bar is provided with a pull rope groove.

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