Drainage tube with air bag

Abstract

The utility model discloses a drainage tube with an air bag, which relates to the technical field of medical instruments and comprises a drainage tube body, a drainage head is mounted at one end of the drainage tube body, a drainage bag connector is mounted at the other end of the drainage tube body, and a drainage head limiting component is arranged on the outer side of the drainage tube body. One side of the drainage tube body is connected with an inflation assembly, one side of the drainage tube body is communicated with a normal saline injection tube, a closed switch is arranged on the outer side of the drainage tube body in a sliding mode, and the closed switch is installed between a drainage bag connector and the normal saline injection tube. The closed switch is arranged to close the drainage tube, normal saline is prevented from flowing to the drainage bag during injection, the closing tightness of the closed switch is larger than that of a flow rate switch used on a common medical hose, the situation that the closing effect is weakened due to the fact that a knob is loosened is avoided, and operation is quite easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a drainage tube with an airbag. Background Technology

[0002] A drainage tube is a medical device used for surgical drainage in clinical practice. It guides pus, blood, and other fluids accumulated between tissues or in body cavities to the outside of the body, thereby preventing postoperative infection and accelerating wound healing. In clinical medicine, there are many types of drainage tubes because they are used in different locations of the patient's wound. Some are used in the urethra, some in the pleural cavity and brain cavity, some in the gastrointestinal tract, and some in the biliary tract, etc.

[0003] Fluid drained from a drainage tube usually needs to be stored and collected using a drainage bag. The drainage bag is generally marked with graduations. By observing the graduations on the drainage bag, the amount of fluid drained from the patient's body can be quantitatively collected. Medical staff can then conduct tests and analyses on the appropriate amount of fluid collected in the drainage bag to determine the patient's current physical condition and illness.

[0004] The use of drainage tubes is relatively simple. After patients or their families cooperate with medical staff to install them several times and become proficient, they can try to install and use them independently. When using existing drainage tubes, the drainage port may be blocked by fluid accumulation in the patient's body. In this case, normal saline is needed to clear the blockage. When clearing the drainage tube, the drainage bag needs to be sealed. However, the existing sealing method is generally to seal the drainage tube by rotating a button. This sealing method is not tight enough, and the button is easy to loosen, causing normal saline to divert into the drainage bag, thereby weakening the clearing effect of normal saline. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a drainage tube with an airbag to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage tube with an airbag, comprising a drainage tube body, a drainage head installed at one end of the drainage tube body, a drainage bag connector installed at the other end of the drainage tube body, a drainage head limiting component on the outer side of the drainage tube body, an inflation component connected to one side of the drainage tube body, a saline injection tube connected to one side of the drainage tube body, a slidable sealing switch on the outer side of the drainage tube body, the sealing switch being installed between the drainage bag connector and the saline injection tube, the sealing switch comprising a switch housing, the switch housing being slidably installed on the outer side of the drainage tube body, a pressure block slidably provided on the top of the switch housing, two symmetrical sliding grooves opened on the inner side of the switch housing, a locking hole opened through the switch housing on one side of the sliding groove, two sliding holes opened on the symmetrical sides of the pressure block, a locking buckle slidably provided in the sliding hole, a first pressure spring installed at the bottom of the sliding hole, the locking buckle being connected to the bottom of the sliding hole through the first pressure spring, a second pressure spring installed at the bottom of the sliding groove, the second pressure spring being located below the locking buckle.

[0007] By employing the above technical solutions, a drainage head is used to drain accumulated fluid from the patient's body. A drainage bag connector facilitates connection with the drainage bag. A drainage head limiting component restricts the drainage head, ensuring a more secure and tight connection within the patient's body. This prevents the drainage head from being accidentally pulled out of the wound, which could lead to infection and discomfort. An inflation component inflates and deflates the drainage head limiting component, controlling its limiting effect and facilitating its placement and removal. A saline infusion tube allows for unblocking of the drainage tube by injecting saline solution. A sealing switch seals the drainage tube, preventing saline from flowing into the drainage bag during injection. Furthermore, the sealing tightness of the shut-off switch is greater than that of the flow rate switches used on general medical tubing, preventing the sealing effect from weakening due to loose knobs. The pressure block is used to press the drainage tube body to seal the tube. The use of a latch, a first pressure spring, and a sliding hole makes the latch elastic and allows it to slide and extend / retract within the sliding hole. The use of a sliding groove and a locking hole allows the latch to slide up and down within the sliding groove along with the pressure block. When the pressure block completely presses and seals the drainage tube body, the latch slides to the locking hole and is springed into the locking hole by the first pressure spring to lock. The use of a second pressure spring prevents the pressure block from pressing and restricting the flow of the drainage tube body when no external force is applied, and when the shut-off switch is unlocked, the pressure block is automatically springed back to its original position by the second pressure spring.

[0008] The present invention is further configured such that the drainage head limiting component consists of two thin film airbags, and two grooves are formed on the outer side of the drainage tube body, with thin film airbags installed on the outer side of the grooves.

[0009] By adopting the above technical solution, the groove facilitates the installation of the membrane airbag. When air is inflated into the groove, the membrane airbag expands and gets stuck in the patient's body cavity, thus limiting the drainage head. Since the internal air pressure of the two membrane airbags is the same, the size of the membrane airbag outside the patient can be observed, thereby controlling the size of the membrane airbag inside the patient and keeping the size of the membrane airbag inside the patient within a suitable range to avoid causing discomfort to the patient.

[0010] The present invention is further configured such that the inflation assembly includes an inflation branch pipe, the inflation branch pipe is connected to one side of the drainage pipe body, a valve is installed on the outside of the inflation branch pipe, an inflation connector is installed at the outer end of the inflation branch pipe, a connecting strap is connected to one side of the inflation connector, and a piston is connected to the other end of the connecting strap, the piston being snapped into the inflation connector.

[0011] By adopting the above technical solution, an inflation tube is used to inflate and deflate the membrane airbag. A valve is used to control the deflation of the membrane airbag, so that the gas in the membrane airbag is released after drainage, allowing the drainage head to be removed. An inflation connector is used to facilitate the connection of the syringe. A piston is used to seal the inflation connector to prevent dust from entering and clogging the tube when it is not in use. A connecting strap is used to connect the piston and the inflation connector to prevent the piston from falling off and being lost.

[0012] The present invention is further provided that an injection connector is installed at the outer end of the saline injection tube.

[0013] By adopting the above technical solution, the injection connector facilitates the connection of the saline syringe.

[0014] The present invention is further configured such that a plurality of square holes are provided on the outer side of the drainage head.

[0015] By adopting the above technical solution, the flow area of ​​the drainage head is increased, and the occurrence of drainage head blockage is reduced.

[0016] The present invention is further configured such that an air groove is formed inside the pipe wall of the drainage tube body.

[0017] By adopting the above technical solution, the two thin-film airbags and the inflation component are connected.

[0018] The present invention is further configured such that a one-way valve is installed on the inner side of the injection connector.

[0019] By adopting the above technical solution, the injection connector can only be injected in one direction, and the drained fluid or injected saline will not flow out from the injection connector.

[0020] The present invention is further configured such that the piston is made of medical-grade rubber.

[0021] By adopting the above technical solution, the piston and the air inlet connector are more tightly engaged and will not easily come loose.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model uses a sealing switch to seal the drainage tube, preventing saline from flowing into the drainage bag during injection. By using a buckle and a locking hole, when the pressure block completely presses and seals the drainage tube, the buckle slides into the locking hole and is locked by the first pressure spring. The sealing tightness of this sealing switch is greater than that of the flow switch used on general medical tubing, and there will be no situation where the knob is loose and the sealing effect is weakened. The operation is also very simple and convenient.

[0024] 2. This utility model limits the drainage head by setting a drainage head limiting component, making the connection of the drainage head in the patient's body more stable and tight, and preventing the drainage head from being accidentally pulled out of the patient's wound, which could lead to wound infection and discomfort to the patient. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of one side of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the disassembled structure of the drainage head limiting component of this utility model;

[0027] Figure 3 This is an enlarged structural schematic diagram of the inflatable component of this utility model;

[0028] Figure 4 This is a cross-sectional structural diagram of some parts of this utility model;

[0029] Figure 5 This is a schematic cross-sectional view of the closed switch structure of this utility model;

[0030] In the diagram: 1. Drainage tube body; 2. Drainage head; 21. Square hole; 3. Drainage bag connector; 4. Drainage head limiting component; 41. Membrane airbag; 42. Groove; 43. Air groove; 5. Inflation component; 51. Inflation branch pipe; 52. Valve; 53. Inflation connector; 54. Connecting strap; 55. Piston; 6. Saline injection tube; 61. Injection connector; 62. One-way valve; 7. Closing switch; 71. Switch housing; 72. Pressure block; 73. Slide groove; 74. Lock hole; 75. Slide hole; 76. Lock; 77. First pressure spring; 78. Second pressure spring. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] A type of drainage tube with an airbag, such as Figure 1 - Figure 5As shown, the device includes a drainage tube body 1. A drainage head 2 is installed at one end of the drainage tube body 1 to drain fluid from the patient's body. Multiple square holes 21 are provided on the outer side of the drainage head 2 to increase its flow area and reduce the likelihood of blockage. A drainage bag connector 3 is installed at the other end of the drainage tube body 1 for easy connection with a drainage bag. A drainage head limiting component 4 is provided on the outer side of the drainage tube body 1 to limit the drainage head 2, ensuring a more secure and tight connection within the patient's body. This prevents the drainage head 2 from being accidentally pulled out of the wound, which could lead to infection and other complications for the patient. The drainage tube body 1 is equipped with an inflation assembly 5 on one side. This assembly inflates and deflates the drainage head limiting assembly 4, controlling its limiting effect and facilitating the positioning and removal of the drainage head 2. A saline injection tube 6 is connected to one side of the drainage tube body 1. This allows for the injection of saline solution to clear blockages. A sealing switch 7 is slidably mounted on the outer side of the drainage tube body 1. This seals the drainage tube, preventing saline solution from flowing into the drainage bag during injection. The sealing switch 7 has a stronger sealing tightness than flow rate switches used on typical medical tubing, preventing loosening and subsequent problems. In cases where the sealing effect weakens, the sealing switch 7 is installed between the drainage bag connector 3 and the saline infusion tube 6. The sealing switch 7 includes a switch housing 71, which is slidably mounted on the outside of the drainage tube body 1. A pressure block 72 is slidably provided on the top of the switch housing 71, which can press the drainage tube body 1 to seal the tube. Two symmetrical sliding grooves 73 are opened on the inner side of the switch housing 71. A locking hole 74 is opened through the switch housing 71 on one side of the sliding groove 73. Two sliding holes 75 are opened on the two symmetrical sides of the pressure block 72. A latch 76 is slidably provided in the sliding hole 75. A first pressure spring 77 is installed at the bottom of the sliding hole 75. The latch 76 is connected to the first pressure spring 77. 7 is connected to the bottom of the sliding hole 75. A second pressure spring 78 is installed at the bottom of the sliding groove 73. The second pressure spring 78 is located below the latch 76. With the latch 76, the first pressure spring 77, and the sliding hole 75, the latch 76 is elastic and can slide and extend / retract within the sliding hole 75. With the sliding groove 73 and the locking hole 74, the latch 76 can slide up and down within the sliding groove 73 along with the pressure block 72. When the pressure block 72 completely presses and seals the drainage tube body 1, the latch 76 slides to the position of the locking hole 74 and is springed into the locking hole 74 by the first pressure spring 77 for locking. With the second pressure spring 78, the pressure block 72 will not press and restrict the flow of the drainage tube body 1 when it is not subjected to external force.Furthermore, when the closing switch 7 is unlocked, the pressure block 72 will automatically be springed back to its original position by the second pressure spring 78.

[0034] Please see Figure 1 and Figure 2 The drainage head limiting component 4 consists of two thin-film airbags 41. Two grooves 42 are provided on the outer side of the drainage tube body 1, and the thin-film airbags 41 are installed on the outer side of the grooves 42. An air groove 43 is provided in the inner wall of the drainage tube body 1. The two thin-film airbags 41 and the inflation component 5 are connected by the air groove 43. The grooves 42 facilitate the installation of the thin-film airbags 41. When air is inflated into the grooves 42, the thin-film airbags 41 expand and are locked in the patient's body cavity, thus limiting the drainage head 2. Since the internal air pressure of the two thin-film airbags 41 is the same, the size of the thin-film airbags 41 outside the patient can be observed, thereby controlling the size of the thin-film airbags 41 inside the patient and keeping the size of the thin-film airbags 41 inside the patient within a suitable range to avoid causing discomfort to the patient.

[0035] Please see Figure 1 and Figure 3 The inflation assembly 5 includes an inflation branch pipe 51, which is connected to one side of the drainage tube body 1. A valve 52 is installed on the outer side of the inflation branch pipe 51, and an inflation connector 53 is installed at the outer end of the inflation branch pipe 51. A connecting strap 54 is connected to one side of the inflation connector 53, and a piston 55 is connected to the other end of the connecting strap 54. The piston 55 can be locked into the inflation connector 53. The piston 55 is made of medical-grade rubber, which makes the locking between the piston 55 and the inflation connector 53 more secure and prevents it from easily coming loose. An inflation tube 51 allows for the inflation and deflation of the membrane airbag 41. A valve 52 controls the deflation of the membrane airbag 41, releasing the gas inside after drainage and allowing the drainage head 2 to be removed. An inflation connector 53 facilitates the connection of the syringe. A piston 55 seals the inflation connector 53 to prevent dust from entering and clogging the inflation tube 51 when not in use. A connecting strap 54 connects the piston 55 and the inflation connector 53 to prevent the piston 55 from falling off and being lost.

[0036] Please see Figure 1 and Figure 4 The outer end of the saline injection tube 6 is equipped with an injection connector 61, and a one-way valve 62 is installed on the inner side of the injection connector 61 so that the drained fluid or injected saline will not flow out from the injection connector 61. However, the saline can be injected into the drainage tube body 1 through the injection connector 61. The injection connector 61 facilitates the connection of the saline syringe.

[0037] The working principle of this utility model is as follows: When using this device, firstly, connect the drainage tube body 1 to the drainage bag through the drainage bag connector 3, then fix the drainage tube body 1 below the patient's wound to prevent backflow. Next, insert the drainage head 2 into the wound requiring drainage, open the piston 55, and use the syringe connected to the inflation connector 53 to inject gas into the inflation branch tube 51. Observe the external membrane airbag 41. When the membrane airbag 41 inflates to a suitable size, close the valve 52, withdraw the syringe, and close the piston 55. At this time, the drainage head 2 is fully positioned and will not be easily pulled out. Open the sealing switch 7 to start drainage. When the drainage tube has been used for a long time and is blocked by fluid accumulation in the patient's body, close the sealing switch 7. At this time, the pressure block 72 drives the locking buckle 76 to slide downwards. When the pressure block 72 presses and seals the drainage tube, the latch 76 slides into the locking hole 74 and is springed into the locking hole 74 by the first pressure spring 77 to lock. This locking method is very stable and will not cause the sealing effect to weaken due to loose knob. Then, use a saline syringe connected to the injection connector 61 to inject saline into the saline injection tube 6 to clear the blockage. After clearing the blockage, open the sealing switch 7. Simply press the latch 76 out of the locking hole 74. At this time, the latch 76 will be driven by the elastic force of the second pressure spring 78 to automatically return the pressure block 72 to its original position to unlock, so that drainage can continue. After the accumulated fluid is drained, open the piston 55 and valve 52 to release the gas in the membrane airbag 41, and then remove the drainage head 2 to end the drainage work.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A drainage tube with an airbag, comprising a drainage tube body (1), wherein a drainage head (2) is installed at one end of the drainage tube body (1), and a drainage bag connector (3) is installed at the other end of the drainage tube body (1), characterized in that: The drainage tube body (1) is provided with a drainage head limiting component (4) on its outer side. An inflation component (5) is connected to one side of the drainage tube body (1). A saline injection tube (6) is connected to one side of the drainage tube body (1). A sealing switch (7) is slidably provided on the outer side of the drainage tube body (1). The sealing switch (7) is installed between the drainage bag connector (3) and the saline injection tube (6). The sealing switch (7) includes a switch housing (71). The switch housing (71) is slidably installed on the outer side of the drainage tube body (1). A pressure block (72) is slidably provided on the top of the switch housing (71). The inner side of the switch housing (71) is provided with two symmetrical sliding grooves (73). One side of the sliding groove (73) passes through the switch housing (71) and provides a lock hole (74). The pressure block (72) has two symmetrical sliding holes (75) on both sides. A latch (76) is slidably provided in the sliding hole (75). A first pressure spring (77) is installed at the bottom of the sliding hole (75). The latch (76) is connected to the bottom of the sliding hole (75) through the first pressure spring (77). A second pressure spring (78) is installed at the bottom of the sliding groove (73). The second pressure spring (78) is located below the latch (76).

2. The drainage tube with an airbag according to claim 1, characterized in that: The drainage head limiting assembly (4) consists of two thin film airbags (41). Two grooves (42) are opened on the outer side of the drainage tube body (1), and the thin film airbags (41) are installed on the outer side of the grooves (42).

3. A drainage tube with an airbag according to claim 1, characterized in that: The inflation assembly (5) includes an inflation branch pipe (51), which is connected to one side of the drainage pipe body (1). A valve (52) is installed on the outside of the inflation branch pipe (51), and an inflation connector (53) is installed at the outer end of the inflation branch pipe (51). A connecting strap (54) is connected to one side of the inflation connector (53), and a piston (55) is connected to the other end of the connecting strap (54). The piston (55) can be snapped into the inflation connector (53).

4. A drainage tube with an airbag according to claim 3, characterized in that: An injection connector (61) is installed at the outer end of the saline injection tube (6).

5. A drainage tube with an airbag according to claim 1, characterized in that: The drainage head (2) has multiple square holes (21) on its outer side, thereby increasing the flow area of ​​the drainage head (2) and reducing the occurrence of blockage of the drainage head (2).

6. A drainage tube with an airbag according to claim 3, characterized in that: The drainage tube body (1) has an air groove (43) inside its pipe wall, which connects the two thin film airbags (41) and the inflation component (5).

7. A drainage tube with an airbag according to claim 4, characterized in that: A one-way valve (62) is installed on the inner side of the injection connector (61), so that the injection connector (61) can only inject in one direction, and the drained fluid or injected saline will not flow out from the injection connector (61).

8. A drainage tube with an airbag according to claim 3, characterized in that: The piston (55) is made of medical-grade rubber, which makes the piston (55) and the inflation connector (53) fit more tightly and will not easily come loose.

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