Device for preventing drainage tube from falling off

By incorporating a puncture tube, a water-filled bladder, and a sealing device into the drainage tube, the problem of easy detachment of the drainage tube is solved, achieving stable fixation of the drainage tube, reducing the risk of infection, and promoting wound healing.

CN224220481UActive Publication Date: 2026-05-12ZHONGSHAN HOSPITAL XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HOSPITAL XIAMEN UNIV
Filing Date
2024-12-31
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, drainage tubes are easily pulled out during use due to patient pain or discomfort, leading to an increased risk of infection. Existing fixation methods are also ineffective in preventing dislodgement.

Method used

A device for preventing drainage tube dislodgement has been designed, comprising a puncture tubing, a water-filled balloon structure, and a sealing device. The drainage tube is contained within the patient by the expansion of the water-filled balloon, and the sealing structure and sealing device prevent liquid leakage, ensuring the drainage tube is securely fixed.

Benefits of technology

It effectively prevents the drainage tube from falling off, reduces the risk of infection, promotes wound healing, has a simple and practical structure, and prevents liquid leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a device for preventing a drainage tube from falling off, which comprises a drainage tube, the tail part of the drainage tube is provided with a puncture hose, the side wall of the puncture hose is provided with a plurality of liquid inlet holes, one end of the drainage tube far away from the puncture hose is provided with a liquid outlet hole, the liquid inlet holes are communicated with the liquid outlet hole through a first liquid channel, and the liquid outlet hole is connected with a drainage container; the water bag structure comprises an injection tube arranged on the side wall, close to the liquid outlet hole, of the drainage tube, a blocking structure is arranged on the injection tube, the injection tube is communicated with a second liquid channel arranged on the peripheral wall of the first liquid channel, and the other end of the second liquid channel is communicated with a water bag arranged on the side, close to the puncture hose, of the drainage bag. A water bag cavity is formed in the water bag, the injection tube is communicated with the injector, the injector is used for injecting liquid into the water bag cavity, the water bag cavity is expanded to form a water bag body, the water bag body is arranged in the body of a patient, then the drainage tube is limited, and the situation that the patient pulls the drainage tube out of the body is effectively prevented.
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Description

Technical Field

[0001] This utility model relates to a device for preventing drainage tubes from falling off, and is applied in the field of drainage tubes. Background Technology

[0002] After surgery, fluids (such as blood, exudate, and pus) or gases (such as air and carbon dioxide) may accumulate in the body. Drainage tubes can help drain these accumulations, reduce the risk of infection, and promote wound healing.

[0003] However, during the drainage process, due to pain and itching at the wound site, patients often pull out the drainage tube with their hands, causing fluid leakage and potentially leading to infection. Existing methods for addressing this issue involve using gauze or Velcro to secure the drainage tube where it contacts the patient. However, patients may unintentionally damage the securing structure. Therefore, this invention addresses this problem by designing a device to prevent the drainage tube from falling off. Utility Model Content

[0004] This invention provides a device for preventing the drainage tube from falling off, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] A device for preventing drainage tube dislodgement, comprising:

[0007] The drainage tube has a puncture tube at its tail end, and several inlet holes are provided on the side wall of the puncture tube. An outlet hole is provided at the end of the drainage tube away from the puncture tube. The inlet hole is connected to the outlet hole through a first liquid channel, and the outlet hole is connected to a drainage container.

[0008] The water-filled balloon structure includes an injection tube disposed on the side wall of the drainage tube near the outlet hole. The injection tube is provided with a sealing structure to prevent liquid from flowing out of the injection tube. The injection tube is connected to a second liquid channel disposed on the outer peripheral wall of the first liquid channel. The other end of the second liquid channel is connected to a water-filled balloon disposed on the side of the drainage bag near the puncture tubing. The water-filled balloon is provided with a water-filled balloon cavity. The injection tube is connected to a syringe, which is used to inject liquid into the water-filled balloon cavity, causing the water-filled balloon cavity to expand and form a water-filled balloon body. The water-filled balloon body is placed in the patient's body, thereby limiting the drainage tube.

[0009] As a further improvement, the sealing structure includes a rubber soft plug disposed on the inner wall of the injection tube, the rubber soft plug having a through hole, and a foldable tight-fitting sleeve disposed on the outer side of the injection tube.

[0010] As a further improvement, the length of the injection tube is 40-60 mm, the length of the rubber soft stopper is 10-15 mm, and the foldable length of the tight-fitting sleeve is 15-20 mm.

[0011] As a further improvement, the water bladder includes an inner water bladder disposed on the inner side of the outer wall of the second liquid channel, and the inner water bladder is made of one of nylon, polyester, polyurethane, and polyamide.

[0012] As a further improvement, the drainage container is a drainage bag, which includes a bag body and a drainage conduit disposed at the top of the bag body. The drainage conduit is fixed by a sealing device after being connected to the drainage tube.

[0013] As a further improvement, the sealing device includes a sliding member slidably disposed on the drainage conduit. The top of the sliding member is provided with a plurality of annularly arrayed toothed sheets. The sliding member is provided with external threads, and an abutment is sleeved on the sliding member. The abutment is provided with internal threads corresponding to the external threads. The sliding member and the abutment are screwed together and fixed by the external and internal threads. When the outlet hole is sleeved on the drainage conduit, the sliding member slides upward, causing the toothed sheets to abut against the outer wall of the drainage tube. The abutment is screwed tight relative to the sliding member, causing the abutment to tighten the toothed sheets inward, thereby fixing the drainage tube.

[0014] The beneficial effects of this invention are as follows: The puncture tubing is placed inside the patient's body, and the accumulated liquid or gas in the patient's body is drained into the drainage container through the inlet, which can effectively reduce the risk of infection and promote wound healing. Using a syringe, liquid is injected into the water-filled sac cavity, causing the sac cavity to expand and form a water-filled sac. This water-filled sac is placed inside the patient's body, thus limiting the drainage tube and effectively preventing the patient from pulling out the drainage tube due to wound pain or itching, effectively preventing the risk of further infection. After the syringe injection is completed, the sealing structure effectively prevents liquid from flowing out of the injection tube. This invention has a simple structure and is highly practical. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model.

[0017] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0018] Figure 3 yes Figure 1 A magnified structural diagram at point B in the middle.

[0019] Figure 4 This is a schematic diagram of the connection structure between the drainage tube and the drainage bag provided in this embodiment of the utility model.

[0020] Figure 5 yes Figure 4 A magnified structural diagram at point C.

[0021] The attached diagram is labeled as follows:

[0022] 10. Drainage tube; 11. Puncture tube; 111. Inlet port; 12. Outlet port; 13. First fluid channel;

[0023] 20. Water bladder structure; 21. Injection tube; 22. Sealing structure; 221. Rubber soft stopper; 222. Through hole; 223. Tight sealing sleeve; 23. Second liquid channel; 24. Water bladder; 241. Water bladder cavity; 25. Syringe;

[0024] 30. Drainage bag; 31. Bag body; 32. Drainage conduit; 33. Sealing device; 34. Sliding component; 341. Toothed sheet; 342. External thread; 35. Abutment component; 351. Internal thread. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figures 1-3 As shown, a device for preventing the drainage tube 10 from dislodging includes: a drainage tube 10, with a puncture tube 11 at the tail end of the drainage tube 10, a plurality of inlet holes 111 on the side wall of the puncture tube 11, and an outlet hole 12 at the end of the drainage tube 10 away from the puncture tube 11. The inlet hole 111 is connected to the outlet hole 12 through a first liquid channel 13, and the outlet hole 12 is connected to a drainage container. The puncture tube 11 is placed inside the patient's body, and the accumulated liquid or gas in the patient's body is drained into the drainage container through the inlet holes 111, which can effectively reduce the risk of infection and promote wound healing.

[0028] The water-filled sac structure 20 includes an injection tube 21 disposed on the side wall of the drainage tube 10 near the outlet hole 12. A sealing structure 22 is provided on the injection tube 21 to prevent liquid from flowing out of the injection tube 21. The injection tube 21 connects to a second liquid channel 23 disposed on the outer peripheral wall of the first liquid channel 13. The other end of the second liquid channel 23 connects to a water-filled sac 24 disposed on the side of the drainage bag 30 near the puncture tubing 11. The water-filled sac 24 contains a water-filled sac cavity 241. The injection tube 21... The syringe 25 is connected to inject liquid into the water bladder cavity 241, causing the water bladder cavity 241 to expand and form a water bladder 24 body. The water bladder 24 body is placed inside the patient's body, thereby limiting the drainage tube 10 and effectively preventing the patient from pulling out the drainage tube 10 due to wound pain and itching, thus effectively preventing the risk of further infection. After the syringe injection is completed, the sealing structure 22 can effectively prevent the liquid from flowing out of the injection tube 21. This utility model has a simple structure and strong practicality.

[0029] As a further improvement, the sealing structure 22 includes a rubber soft plug 221 disposed on the inner wall of the injection tube 21. The rubber soft plug 221 is provided with a through hole 222. A foldable tight-fitting sleeve 223 is provided on the outer side of the injection tube 21. First, the needle of the syringe 25 is inserted into the through hole 222. The tight-fitting sleeve 223 is folded over and fitted onto the needle. This can effectively prevent liquid leakage due to the needle not being inserted into the through hole 222. After the syringe 25 completes the injection, the tight-fitting sleeve 223 is folded in the opposite direction, so that the tight-fitting sleeve 223 can retract the rubber soft plug 221 inward, thereby sealing the through hole 222 and preventing liquid from flowing out of the injection tube 21.

[0030] As a further improvement, the length of the injection tube 21 is 40-60 mm, the length of the rubber soft stopper 221 is 10-15 mm, and the foldable length of the tight sealing sleeve 223 is 15-20 mm. In one embodiment, the length of the injection tube 21 is 60mm, the length of the rubber soft stopper 221 is 15mm, and the foldable length of the tight-fitting sleeve 223 is 20mm. The advantages of this arrangement are that, firstly, the length of the injection tube 21 is long enough to facilitate the setting of the rubber soft tube 221 and the injection operation of the syringe 25; secondly, the length of the foldable portion of the tight-fitting sleeve 223 is 5mm longer than the length of the rubber soft stopper 221, so that when the tight-fitting sleeve 223 is folded in the direction opposite to the syringe 25, the tight-fitting sleeve 223 can completely wrap the rubber soft stopper 221, preventing leakage from the rubber soft stopper 221. Furthermore, since the tight-fitting sleeve 223 is a foldable structure, its tightening effect will be weakened. Setting a longer tight-fitting sleeve 223 to completely wrap the rubber soft stopper 221 can completely seal the end of the through hole 222 away from the syringe 25, thereby preventing liquid leakage.

[0031] In one embodiment, the water bladder 24 includes an inner water bladder disposed on the inner side of the outer wall of the second liquid channel 23, that is, the water bladder 24 has a two-layer water bladder wall structure. The material of the inner water bladder is one of nylon, polyester, polyurethane, and polyamide. In one embodiment, the inner water bladder is made of nylon. Nylon has the characteristics of suitable elongation at break, good elasticity, wear resistance and high enthalpy, which can effectively prevent the water bladder 24 from rupturing during use in the patient's body and prevent the drainage tube 10 from being pulled out at will.

[0032] Reference Figures 4-5As shown, in one embodiment, the drainage container is a drainage bag 30, which includes a bag body 31 and a drainage conduit 32 disposed on the top of the bag body 31. The drainage conduit 32 is connected to the drainage tube 10 and then fixed by a sealing device 33. The sealing device 33 includes a sliding member 34 slidably disposed on the drainage conduit 32. The top of the sliding member 34 is provided with a plurality of annularly arrayed toothed sheets 341. The sliding member 34 is provided with an external thread 342. An abutment member 35 is sleeved on the sliding member 34. The abutment member 35 is provided with an internal thread 351 corresponding to the external thread 342. The sliding member 34 and the abutment member 35 are screwed together and fixed by the external thread 342 and the internal thread 351. When the outlet hole 12 is sleeved on the drainage conduit 32, the sliding member 34 slides upward, so that the toothed sheets 341 abut against the outer wall of the drainage tube 10. The abutment member 35 is screwed and fixed relative to the sliding member 34, so that the abutment member 35 tightens the toothed sheets 341 inward, thereby fixing the drainage tube 10. The sealing device 33 can effectively prevent the drainage tube 10 from separating from the drainage bag 30 during use, thus preventing liquid leakage. In addition, the sealing device 33 has a simple structure and is highly practical.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for preventing the drainage tube (10) from falling off, characterized in that, include: A drainage tube (10) is provided with a puncture tube (11) at its tail end. The puncture tube (11) has several inlet holes (111) on its side wall. The drainage tube (10) has an outlet hole (12) at one end away from the puncture tube (11). The inlet hole (111) is connected to the outlet hole (12) through a first liquid channel (13). The outlet hole (12) is connected to a drainage container. The water-filled balloon structure (20) includes an injection tube (21) disposed on the side wall of the drainage tube (10) near the outlet hole (12). A sealing structure (22) is provided on the injection tube (21) to prevent liquid from flowing out of the injection tube (21). The injection tube (21) is connected to a second liquid channel (23) disposed on the outer peripheral wall of the first liquid channel (13). The other end of the second liquid channel (23) is connected to a water-filled balloon (24) disposed on the side of the drainage bag (30) near the puncture tubing (11). A water-filled balloon cavity (241) is disposed inside the water-filled balloon (24). The injection tube (21) is connected to a syringe (25). The syringe (25) is used to inject liquid into the water-filled balloon cavity (241) so that the water-filled balloon cavity (241) expands to form a water-filled balloon (24). The water-filled balloon (24) is placed inside the patient's body to limit the drainage tube (10).

2. The device for preventing the drainage tube (10) from falling off according to claim 1, characterized in that, The sealing structure (22) includes a rubber soft plug (221) disposed on the inner wall of the injection tube (21), a through hole (222) is provided in the rubber soft plug (221), and a foldable tight sealing sleeve (223) is provided on the outer side of the injection tube (21).

3. The device for preventing the drainage tube (10) from falling off according to claim 2, characterized in that, The length of the injection tube (21) is 40-60 mm, the length of the rubber soft stopper (221) is 10-15 mm, and the foldable length of the tight sealing sleeve (223) is 15-20 mm.

4. The device for preventing the drainage tube (10) from falling off according to claim 1, characterized in that, The water bladder (24) includes an inner water bladder (24) disposed on the inner side of the outer wall of the second liquid channel (23), and the inner water bladder (24) is made of one of nylon, polyester, polyurethane, and polyamide.

5. The device for preventing the drainage tube (10) from falling off according to claim 1, characterized in that, The drainage container is a drainage bag (30), which includes a bag body (31) and a drainage conduit (32) disposed on the top of the bag body (31). The drainage conduit (32) is fixed by a sealing device (33) after being connected to the drainage tube (10).

6. The device for preventing the drainage tube (10) from falling off according to claim 5, characterized in that, The sealing device (33) includes a sliding member (34) slidably disposed on the drainage conduit (32). The top of the sliding member (34) is provided with a plurality of annularly arrayed toothed sheets (341). The sliding member (34) is provided with an external thread (342). An abutment (35) is sleeved on the sliding member (34). The abutment (35) is provided with an internal thread (351) corresponding to the external thread (342). 4) The abutment (35) is screwed and fixed by external thread (342) and internal thread (351). When the outlet hole (12) is sleeved on the drainage tube (32), the sliding member (34) slides upward, so that the toothed sheet (341) abuts against the outer wall of the drainage tube (10). The abutment (35) is screwed and fixed relative to the sliding member (34), so that the abutment (35) tightens the toothed sheet (341) inward, thereby fixing the drainage tube (10).