Air bag drainage tube
By setting up a variable volume airbag body on the drainage tube and using the combination of the conduit and gas check valve, the problems of drainage tube slippage and oral effluent are solved, achieving higher stability and safety, and reducing medical care Workload and financial burden.
Patent Information
- Application Number
- CN202411695026.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing drainage tubes often have slippage and oral fluid problems in clinical applications, resulting in the need to repeatedly replace dressings and re-implant the drainage tube, which increases the medical workload and economic burden.
Design an airbag drainage tube. By setting a variable volume airbag body on the middle outer side wall of the drainage tube body, and using the conduit one and gas check valve, medical staff can control the expansion and contraction of the airbag body to improve the The stability and safety of the drainage tube.
The design significantly improves the stability of the drainage tube, prevents slippage and oral effusion, reduces the need for repeated dressing changes and re-implantation, reduces the financial burden and pain of patients, and improves the convenience and safety of medical operations. .
Smart Images
Figure CN119386358A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of drainage devices, and in particular to an air bag drainage tube. Background Art
[0002] In the medical field, especially in surgical operations and trauma treatment, drainage tubes are widely used. They are designed to drain accumulated fluids (such as blood, pus or other exudates) from wounds or surgical sites to promote wound healing and prevent infection. However, complications often occur in clinical applications. Common complications are: 1. Slippage of drainage tube: The reasons for analysis are: ① The suture fixation is not firm; ② The drainage tube is placed for too long, and edema at the suture fixation causes the fixation line to fall off or slip off; ③ External force violently pulls the drainage tube off. 2. Exudation at the drainage tube mouth: The reasons for analysis are: ① The drainage tube wound is too large and the suture is not tight; ② The drainage tube is placed for too long, and the drainage tube wound is edematous and enlarged; ③ The drainage tube is placed for too long, and the suture is edematous and falls off. Once the above complications occur, the dressing needs to be changed repeatedly, additional medical work needs to be added, and even the drainage tube needs to be re-implanted, which increases the economic burden and pain.
[0003] To address this issue, researchers and medical device manufacturers are constantly exploring new drain designs to improve their stability and safety. Summary of the invention
[0004] The purpose of the present invention is to overcome the problems existing in the prior art and provide an airbag drainage tube. By setting a volume-variable airbag on the outer wall of the middle part of the drainage tube body, and using the catheter 1 and the gas check valve together, medical staff can easily control the expansion and contraction of the airbag. When the airbag expands, it can slightly pull out the drainage tube, so that it forms a tighter fit with the wound, thereby significantly improving the stability of the drainage tube. At the same time, the setting of the gas check valve ensures that the gas can only flow in one direction, preventing the airbag from shrinking uncontrollably, and further enhancing the safety and reliability of the drainage process.
[0005] The present invention is achieved through the following technical scheme: an air bag drainage tube, comprising a drainage tube body, a volume-variable air bag body is arranged on the middle outer wall of the drainage tube body, the chamber of the air bag body is connected with a catheter 1, the catheter 1 is arranged in the tube cavity of the drainage tube body, and the free end of the catheter 1 passes through the drainage tube body and is provided with a gas check valve.
[0006] In order to further optimize the present invention, the following technical solutions may be preferably used:
[0007] Preferably, the airbag is spherical, elliptical or conical. These airbag shapes can more effectively fit the tissue around the wound, provide uniform support, reduce the pressure concentration points caused by irregular shapes, and thus reduce the patient's discomfort. At the same time, these shapes also facilitate the expansion and contraction control of the airbag, improving the convenience of use.
[0008] Preferably, the airbag body includes two airbag units arranged oppositely on the outer side wall of the drainage tube body, and the two airbag units share a catheter. The two oppositely arranged airbag units share a catheter, which not only simplifies the structure but also enhances the stability of the drainage tube at the wound. The design of the double airbag unit enables the drainage tube to disperse the pressure more evenly when subjected to external force, further reducing the risk of falling off.
[0009] Preferably, the two airbag units are distributed in an "H" shape, which enables the two airbag units to form a stable support structure on the drainage tube body, thereby enhancing the overall stability of the drainage tube. At the same time, this distribution method also helps to reduce the pressure of the airbag body on the surrounding tissues and improve the comfort of the patient.
[0010] Preferably, a second catheter is further provided in the lumen of the drainage tube body, one end of which extends to the drainage end of the drainage tube body, and the other end of which penetrates the drainage tube body and is provided with a water injection cleaning valve. The provision of the second catheter enables medical staff to conveniently flush the interior of the drainage tube through the water injection cleaning valve, effectively remove accumulated impurities and blockages, and keep the drainage tube unobstructed. This is of great significance for improving drainage effects and reducing infection risks.
[0011] Preferably, the first and second catheters are arranged in close contact with the inner wall of the drainage tube body. This design reduces the gap between the catheter and the drainage tube body, and reduces the risk of bacterial growth caused by residual liquid. At the same time, the catheter that fits the inner wall also reduces the obstruction to the flow of drainage fluid and improves the drainage efficiency.
[0012] Preferably, the drainage end side wall of the drainage tube body is evenly distributed with holes, and the evenly distributed hole design allows the drainage fluid to enter the drainage tube more evenly, avoiding the problem of poor drainage caused by excessive local pressure. At the same time, this design also helps to reduce the accumulation of drainage fluid around the wound and promote wound healing.
[0013] Preferably, the first and second catheters are integrally formed with the drainage tube body. The integrally formed design improves the overall strength and stability of the drainage tube and reduces the risk of failure caused by loose or falling parts. At the same time, this design also simplifies the production process and reduces manufacturing costs. In addition, the integrally formed drainage tube is smoother during use and reduces the resistance caused by friction between parts.
[0014] Preferably, the inner wall of the drainage tube body is provided with an interlayer, a spiral channel is provided in the interlayer, and a plurality of spiral channels form a catheter.
[0015] In view of the many disadvantages of traditional drainage tubes in clinical applications, especially the common complications such as drainage tube slippage and drainage tube orifice leakage, this program specially designed this air bag drainage tube (anti-drop type).
[0016] This solution has the following advantages:
[0017] 1) Anti-drop design: A volume-variable airbag is set on the outer wall of the middle part of the drainage tube body. Through the precise control of the catheter and the gas check valve, medical staff can easily adjust the volume of the airbag. When the airbag expands, it can slightly pull out the drainage tube and form a tight fit with the tissue around the wound, thereby effectively preventing the drainage tube from slipping due to external pulling, loose suture fixation or edema.
[0018] 2) Reduce the risk of exudation: Due to the close fit between the balloon and the wound, the possibility of liquid leaking from the drainage tube is reduced. At the same time, this design also helps to reduce the exudation problem caused by excessive wounds, loose sutures or edema, reduces the need for repeated dressing changes and re-implantation of drainage tubes, and reduces the economic burden and pain of patients.
[0019] 3) Improve patient comfort: The soft material and adjustability of the balloon body allow the drainage tube to maintain stability while reducing pressure and friction on surrounding tissues, thus improving patient comfort. This is especially important for patients who need to wear drainage tubes for a long time.
[0020] 4) Simplify medical operations: Medical staff can control the volume change of the airbag through simple operations without complicated fixing steps or additional auxiliary tools, thereby simplifying the medical operation process and improving work efficiency.
[0021] 5) Enhanced medical safety: The design of the balloon drainage tube effectively reduces the medical risks caused by complications such as drainage tube detachment or exudation, ensuring the safety of patients and treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the overall structure of the drainage tube in Example 1;
[0023] Figure 2 Schematic diagram of the internal structure of the drainage tube in Example 1;
[0024] Figure 3 Schematic diagram of the overall structure of the drainage tube in Example 2;
[0025] Figure 4 Schematic diagram of the internal structure of the drainage tube in Example 2;
[0026] Figure 5 This is a schematic diagram of the overall structure of the drainage tube in Example 3;
[0027] Figure 6 Schematic diagram of the internal structure of the drainage tube in Example 3;
[0028] Figure 7 is a schematic diagram of the overall structure of the drainage tube in Example 4;
[0029] Figure 8 Schematic diagram of the internal structure of the drainage tube in Example 4;
[0030] Fig. 9 Schematic diagram of the sandwich structure of the drainage tube in Example 1.
[0031] Among them, 1-drainage tube body; 2-airbag body; 3-catheter one; 4-gas check valve; 5-hole; 6-airbag unit; 7-catheter two; 8-water injection and cleaning valve; 9-spare drainage hole. DETAILED DESCRIPTION
[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.
[0034] Example 1
[0035] like Figure 1-2As shown, as a type I drainage tube, an airbag drainage tube includes a drainage tube body 1, a volume-variable airbag body 2 is installed on the middle outer wall of the drainage tube body, the chamber of the airbag body is connected to a catheter 1, a catheter 1 3 is installed in the lumen of the drainage tube body, and the free end of the catheter 1 penetrates the drainage tube body and is installed with a gas check valve 4, wherein the airbag body is spherical, elliptical or conical, and the airbag bodies of these shapes can more effectively fit the tissue around the wound, provide uniform support, reduce the pressure concentration points caused by irregular shapes, and thus reduce the patient's discomfort. At the same time, these shapes also facilitate the expansion and contraction control of the airbag body, improving the convenience of use.
[0036] The gas check valve 4 in the drawings of this embodiment is only for illustration, and its main function is to prevent gas or fluid from flowing back in the pipeline, thereby ensuring the smoothness and safety of the drainage process. The following types can be selected:
[0037] 1. Spring-type gas check valve: The spring-type gas check valve controls the opening and closing of the valve through the action of the spring. When the gas pressure in the drainage pipeline is greater than the external pressure, the spring will be compressed, the valve will open, and the gas will flow out; when the pressure in the pipeline decreases or the external pressure increases, the spring will return to its original state, push the valve to close, and prevent the gas from flowing back. 2. Ball-type gas check valve: The ball-type gas check valve uses the floating of the ball to control the flow of gas. When the gas in the drainage pipeline flows forward, the ball will be pushed up by the gas, thereby opening the valve; when the gas flows back, the ball will be pressed by the gas, thereby closing the valve. This valve has a simple structure, is easy to maintain, and has good sealing performance. 3. Other types of gas check valves: In addition to spring-type and ball-type gas check valves, other types of gas check valves may be used in medical drains, such as swing type, lifting type, etc. The working principles and applicable scenarios of these valves are different, but they can effectively prevent gas backflow and ensure the safety and smoothness of the drainage process.
[0038] The drainage end side wall of the drainage tube body 1 is evenly provided with holes 5, and the evenly distributed hole design allows the drainage fluid to enter the drainage tube more evenly, avoiding the problem of poor drainage caused by excessive local pressure. At the same time, this design also helps to reduce the accumulation of drainage fluid around the wound and promote the healing of the wound. In addition, the drainage end side wall of the drainage tube body 1 is also virtual cut with a spare drainage hole 9, so that a new hole can be opened as needed.
[0039] like Fig. 9 As shown, the inner wall of the drainage tube body is provided with an interlayer, and a spiral channel is designed in the interlayer. A plurality of spiral channels form a catheter 3. Ventilation through the spiral channel can realize the inflation of the airbag on the one hand, and at the same time inflate the drainage tube body to prevent deformation and blockage of the drainage tube.
[0040] The above structural design has the following advantages: (1) Dual functions and efficient utilization: The design uses the spiral channel as both the inflation channel of the airbag and the function of inflating the drainage tube body. The realization of this dual function not only simplifies the structure and reduces the complexity of components, but also improves the efficiency of resource utilization. When operating, medical staff can complete two key tasks at the same time, thereby improving work efficiency. (2) Enhanced stability of the drainage tube: By inflating the drainage tube body, its shape can be effectively supported to prevent deformation or distortion caused by external forces or the internal environment. The stable drainage tube shape helps to keep the drainage channel unobstructed and reduce the risk of blockage caused by deformation. This is particularly important for patients who need to have a drainage tube for a long time, as it can ensure the continuity and effectiveness of the drainage process. (3) Reduced risk of blockage: The stable support of the drainage tube body reduces the narrow space caused by deformation, reducing the risk of drainage fluid accumulation and blockage in such space. At the same time, the design of the spiral channel also helps to guide the drainage fluid to flow more smoothly, further reducing the possibility of blockage. (4) Improve patient comfort: A stable drainage tube reduces the pressure and irritation on surrounding tissues caused by deformation, thereby reducing the patient's discomfort. This is of great significance for improving the patient's treatment experience and satisfaction, and helps promote the patient's recovery process. (5) Enhance safety: This design also indirectly improves the safety of the drainage tube body by increasing its stability. A stable drainage tube is less likely to accidentally fall off due to external force, thereby reducing the risk of complications caused by this. This is undoubtedly an important safety measure for patients who need to strictly control the treatment process. In summary, the preferred scheme achieves the dual inflation function of the airbag and the drainage tube body by opening a layer on the inner wall and designing a spiral channel as a catheter. This innovative design has shown significant beneficial effects in improving the stability of the drainage tube, reducing the risk of blockage, improving patient comfort and enhancing safety.
[0041] Embodiment 2:
[0042] like Figure 3-4As shown, as a type II drainage tube, this embodiment adds an inverted airbag of the same shape on the basis of the type I drainage tube in embodiment 1 (at the proximal end of the airbag), that is, the airbag body includes two airbag units 6 relatively installed on the outer wall of the drainage tube body 1, and the two airbag units use the same catheter 3. The two relatively installed airbag units 6 use the same catheter 3, which not only simplifies the structure but also enhances the stability of the drainage tube at the wound. The design of the double airbag unit enables the drainage tube to disperse the pressure more evenly when subjected to external force, further reducing the risk of falling off; the two airbag units are distributed in an "H" shape, and the "H" shape distribution enables the two airbag units to form a stable support structure on the drainage tube body, thereby enhancing the overall stability of the drainage tube. At the same time, this distribution method also helps to reduce the pressure of the airbag body on the surrounding tissues and improve the comfort of the patient.
[0043] Embodiment 3:
[0044] like Figure 5-6 As shown, as a type III drainage tube, this embodiment designs a flushing structure based on the type I drainage tube in embodiment 1, that is, a catheter 2 7 is also installed in the lumen of the drainage tube body, one end of the catheter 2 extends to the drainage end of the drainage tube body, and the other end of the catheter 2 penetrates the drainage tube body and is installed with a water injection cleaning valve 8. The installation of the catheter 2 enables medical staff to conveniently flush the inside of the drainage tube through the water injection cleaning valve, effectively remove accumulated impurities and blockages, and keep the drainage tube unobstructed. This is of great significance for improving the drainage effect and reducing the risk of infection.
[0045] The catheter 1 3 and the catheter 2 7 are both installed in close contact with the inner wall of the drainage tube body 1. This design reduces the gap between the catheter and the drainage tube body, and reduces the risk of bacterial growth caused by liquid residue. At the same time, the catheter that fits the inner wall also reduces the obstruction to the flow of drainage fluid and improves the drainage efficiency.
[0046] The catheter 1 3, the catheter 2 7 and the drainage tube body 1 are all integrally formed. The integrally formed design improves the overall strength and stability of the drainage tube and reduces the risk of failure caused by loose or falling parts. At the same time, this design also simplifies the production process and reduces manufacturing costs. In addition, the integrally formed drainage tube is smoother during use and reduces the resistance caused by friction between components.
[0047] Embodiment 4:
[0048] like Figure 7-8As shown, as a type IV drainage tube, this embodiment designs a flushing structure based on the type II drainage tube in embodiment 2, that is, a catheter 2 is also installed in the lumen of the drainage tube body, one end of the catheter 2 extends to the drainage end of the drainage tube body, and the other end of the catheter 2 penetrates the drainage tube body and is installed with a water injection cleaning valve. The installation of the catheter 2 enables medical staff to conveniently flush the inside of the drainage tube through the water injection cleaning valve, effectively remove accumulated impurities and blockages, and keep the drainage tube unobstructed. This is of great significance for improving drainage effects and reducing infection risks.
[0049] The catheter 1 3 and the catheter 2 7 are both installed in close contact with the inner wall of the drainage tube body 1. This design reduces the gap between the catheter and the drainage tube body, and reduces the risk of bacterial growth caused by liquid residue. At the same time, the catheter that fits the inner wall also reduces the obstruction to the flow of drainage fluid and improves the drainage efficiency.
[0050] The catheter 1 3, the catheter 2 7 and the drainage tube body 1 are all integrally formed. The integrally formed design improves the overall strength and stability of the drainage tube and reduces the risk of failure caused by loose or falling parts. At the same time, this design also simplifies the production process and reduces manufacturing costs. In addition, the integrally formed drainage tube is smoother during use and reduces the resistance caused by friction between components.
[0051] The above-mentioned drainage tubes have the following advantages: the balloon drainage tube can prevent falling off and extravasation due to the function of its proximal balloon; the distal end is the drainage end, with side holes, which plays a role in drainage, and its length and side holes can be appropriately trimmed during surgery. The two balloons in the II and IV type drainage tubes are in an "H" shape to play a role in fixation and leakage prevention, and no suture fixation is required; the III and IV type drainage tubes have water injection and flushing valves, which play a role in flushing.
[0052] Operation method: appropriately trim the length and side hole of the drainage tube, inject gas through the gas check valve after inserting it into the body cavity, expand the balloon, and gently pull out the drainage tube to make the balloon and the drainage tube wound fit tightly, and fix it with sutures on the skin side of the wound. If the diameter of the drainage tube increases due to long-term placement of the drainage tube, the gas in the balloon can be increased to increase the balloon volume so that it fits tightly with the wound. The two balloons of the II and IV type drainage tubes are "H" shaped, which plays a role in fixing and preventing them from falling off and body fluid extravasation, and avoiding suture fixation or suture falling off.
[0053] Scope of application: drainage and flushing after abdominal surgery, drainage and flushing after thoracic surgery, drainage and flushing of abscess cavity, drainage and flushing of cystostomy, jejunal nutrition tube, long-term body cavity drainage, etc.
[0054] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An air bag drainage tube, comprising a drainage tube body, characterized in that: A volume-variable airbag is arranged on the middle outer wall of the drainage tube body, the chamber of the airbag is connected with a catheter 1, the catheter 1 is arranged in the lumen of the drainage tube body, and the free end of the catheter 1 passes through the drainage tube body and is provided with a gas check valve.
2. The balloon drainage tube according to claim 1, characterized in that: The air bag body is spherical, elliptical or conical.
3. The balloon drainage tube according to claim 1, characterized in that: The airbag body comprises two airbag units which are arranged oppositely on the outer side wall of the drainage tube body, and the two airbag units share the same catheter.
4. The balloon drainage tube according to claim 3, characterized in that: The two airbag units are arranged in an "H" shape.
5. The balloon drainage tube according to any one of claims 1 to 4, characterized in that: A second catheter is also arranged in the lumen of the drainage tube body, one end of which extends to the drainage end of the drainage tube body, and the other end of which penetrates the drainage tube body and is provided with a water injection and cleaning valve.
6. The balloon drainage tube according to claim 5, characterized in that: The first catheter and the second catheter are both arranged in close contact with the inner wall of the drainage tube body.
7. The balloon drainage tube according to claim 1, characterized in that: The side wall of the drainage end of the drainage tube body is evenly distributed with holes.
8. The balloon drainage tube according to claim 1, characterized in that: The inner wall of the drainage tube body is provided with an interlayer, and a spiral channel is provided in the interlayer, and a plurality of spiral channels form a catheter.