Anti-blocking subcutaneous negative pressure flushing drainage tube

Abstract

The utility model provides an anti-clogging subcutaneous negative pressure flushing drainage tube which comprises a drainage main tube, a water inlet tube and an air inlet tube, one end of the drainage main tube is communicated with the water inlet tube and the air inlet tube at the same time, and a plurality of drainage holes are formed in the end of the drainage main tube; the diameter of the air inlet pipe is larger than that of the water inlet pipe. The drainage tube is prevented from being pressed and blocked while the drainage tube drains hydrops or necrotic tissues in a wound under continuous negative pressure.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an anti-clogging subcutaneous negative pressure flushing drainage tube. Background Art

[0002] For surgical wounds with a large amount of body fluid outflow after surgery, it is necessary to timely retain a drainage tube for drainage and flushing while protecting the wound surface of the body, so as to timely guide the body fluid outflowing from the wound surface to promote wound healing as soon as possible. At present, the drainage tube is generally made of materials such as silicone rubber or polyurethane. When used, one end of the drainage tube is inserted into the part of the body that needs drainage, sutured and fixed at the entrance of the skin, and the other end can be connected to a negative pressure ball, flushing fluid, suction device and other devices outside the body. However, due to its soft texture, it is easy to be flattened by pressure, resulting in poor drainage, which affects the recovery effect after surgery. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a subcutaneous negative pressure flushing drainage tube that is anti-clogging, so that the drainage tube can drain the accumulated fluid or necrotic tissue in the wound under continuous negative pressure while avoiding blockage due to pressure on the drainage tube.

[0004] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is:

[0005] A subcutaneous negative pressure flushing drainage tube that prevents clogging comprises a main drainage tube, a water inlet tube and an air inlet tube. One end of the main drainage tube is connected to both the water inlet tube and the air inlet tube. The main drainage tube is provided with a plurality of drainage holes at the end. The diameter of the air inlet tube is larger than that of the water inlet tube.

[0006] The air inlet end of the air inlet pipe of the utility model is provided with an air inlet cap, and an air semi-permeable membrane is provided inside the air inlet cap.

[0007] The outer side of the drainage main pipe of the utility model is provided with an elastic pipe sleeve which can move axially.

[0008] Preferably, a dressing is included, the elastic tube sleeve is arranged on one side of the dressing, and an adhesive layer is arranged on the other side of the dressing.

[0009] Preferably, the elastic tube sleeve is made of elastic TPU material or silicone material.

[0010] The diameter of the water inlet pipe of the utility model is 3mm, and the diameter of the air inlet pipe is 5mm. The water inlet pipe diameter control is convenient for mastering the water inlet speed (20 drops = 1ml ± 0.1ml), and the air inlet pipe diameter control has the best anti-blocking effect on the pipeline.

[0011] The beneficial effects of the utility model are:

[0012] 1. An air inlet pipe is added to the water inlet end of the drainage pipe. Under the action of negative pressure, air continues to enter the air inlet pipe so that the drainage main pipe will not be flattened and blocked.

[0013] 2. Install an air semipermeable membrane at the air inlet of the air inlet pipe to prevent impurities in the air from entering the body and causing infection.

[0014] 3. An elastic tube sleeve is arranged outside the drainage main tube, and the elastic tube sleeve is moved just outside the body to facilitate the collection of the long water inlet tube and air inlet tube, which is convenient for surgical operation. Furthermore, a dressing with an adhesive layer is added outside the elastic tube sleeve to facilitate the positioning of the elastic tube sleeve and prevent the drainage tube from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the structure of the anti-clogging subcutaneous negative pressure flushing drainage tube.

[0016] Figure 2 Schematic diagram of the structure of the anti-clogging subcutaneous negative pressure flushing drainage tube of Examples 2 and 3.

[0017] Figure 3 This is a schematic diagram of the structure of the anti-clogging subcutaneous negative pressure flushing drainage tube of Example 4.

[0018] Marked in the figure are: 1. drainage main pipe, 2. water inlet pipe, 3. air inlet pipe, 4. drainage hole, 5. air inlet cap, 6. water inlet joint, 7. air semipermeable membrane, 8. elastic tube sleeve, 9. dressing. DETAILED DESCRIPTION

[0019] In order to explain the purpose and technical solution of the utility model more clearly and in detail, the utility model is further described below through relevant embodiments. The following embodiments are only for specific explanation of the implementation method of the utility model, and do not limit the protection scope of the utility model.

[0020] Example 1

[0021] like Figure 1 As shown, a blockage-resistant subcutaneous negative pressure flushing drainage tube comprises a main drainage pipe 1, a water inlet pipe 2 and an air inlet pipe 3. One end of the main drainage pipe 1 is connected to the water inlet pipe 2 and the air inlet pipe 3 at the same time. The main drainage pipe 1 is provided with a plurality of drainage holes 4 at this end. The diameter of the air inlet pipe 3 is thicker than that of the water inlet pipe 2.

[0022] The drainage hole of the drainage main pipe is buried in the subcutaneous tissue, and saline is flushed from the water inlet pipe. The other end of the drainage main pipe is connected to a negative pressure device to maintain continuous negative pressure suction. Under the action of negative pressure, air continues to enter the air inlet pipe, so that the drainage main pipe will not be flattened and blocked.

[0023] Example 2

[0024] like Figure 2 As shown, a blockage-resistant subcutaneous negative pressure flushing drainage tube comprises a main drainage pipe 1, a water inlet pipe 2 and an air inlet pipe 3. One end of the main drainage pipe 1 is connected to the water inlet pipe 2 and the air inlet pipe 3 at the same time. The main drainage pipe 1 is provided with a plurality of drainage holes 4 at this end. The diameter of the air inlet pipe 3 is thicker than that of the water inlet pipe 2.

[0025] An air inlet cap 5 is disposed at the air inlet end of the air inlet pipe 3 , and an air semi-permeable membrane 7 is disposed inside the air inlet cap 5 .

[0026] The diameter of the water inlet pipe is 3 mm, and the diameter of the air inlet pipe is 5 mm.

[0027] Example 3

[0028] like Figure 2 As shown, a blockage-resistant subcutaneous negative pressure flushing drainage tube comprises a main drainage pipe 1, a water inlet pipe 2 and an air inlet pipe 3. One end of the main drainage pipe 1 is connected to the water inlet pipe 2 and the air inlet pipe 3 at the same time. The main drainage pipe 1 is provided with a plurality of drainage holes 4 at this end. The diameter of the air inlet pipe 3 is thicker than that of the water inlet pipe 2.

[0029] An air inlet cap 5 is disposed at the air inlet end of the air inlet pipe 3 , and an air semi-permeable membrane 7 is disposed inside the air inlet cap 5 .

[0030] An axially movable elastic tube sleeve 8 is arranged on the outside of the drainage main tube 1. The elastic tube sleeve is just moved outside the body to facilitate the folding of the relatively long water inlet tube and air inlet tube, which is convenient for surgical operation.

[0031] The elastic sleeve 8 is made of elastic TPU material.

[0032] Example 4

[0033] This embodiment is based on Embodiment 3:

[0034] like Figure 3 As shown, it includes a dressing 9, the elastic tube sleeve 8 is arranged on one side of the dressing 9, and an adhesive layer is arranged on the other side of the dressing 9. Through the adhesive dressing, it is convenient to position the drainage tube from outside the body without sliding up and down.

[0035] The elastic tube sleeve 8 is made of silicone.

[0036] The connection methods not mentioned in the present invention are clamping, riveting, threaded connection or bonding.

[0037] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A subcutaneous negative pressure flushing and drainage tube that prevents clogging, characterized in that: It comprises a drainage main pipe, a water inlet pipe and an air inlet pipe. One end of the drainage main pipe is connected to the water inlet pipe and the air inlet pipe at the same time. The drainage main pipe is provided with a plurality of drainage holes at the end. The diameter of the air inlet pipe is thicker than that of the water inlet pipe.

2. The anti-clogging subcutaneous negative pressure flushing drainage tube according to claim 1, characterized in that: An air intake cap is arranged at the air intake end of the air intake pipe, and an air semi-permeable membrane is arranged inside the air intake cap.

3. The anti-clogging subcutaneous negative pressure flushing drainage tube according to claim 1, characterized in that: An axially movable elastic sleeve is arranged on the outer side of the drainage main pipe.

4. The anti-clogging subcutaneous negative pressure flushing drainage tube according to claim 3, characterized in that: The dressing comprises a dressing, wherein the elastic tube sleeve is arranged on one side of the dressing, and an adhesive layer is arranged on the other side of the dressing.

5. The anti-clogging subcutaneous negative pressure flushing drainage tube according to claim 3, characterized in that: The elastic tube sleeve is made of elastic TPU material or silicone material.

6. The anti-clogging subcutaneous negative pressure flushing drainage tube according to claim 1, characterized in that: The diameter of the water inlet pipe is 3 mm, and the diameter of the air inlet pipe is 5 mm.

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