Multifunctional drainage bag

Abstract

The utility model discloses a multifunctional drainage bag. The drainage bag comprises a bag body, a drainage catheter, a cut-through switch and a multifunctional connector, the liquid outlet end of the drainage catheter is connected with a liquid inlet of the bag body, a threaded connector is arranged at the butt joint end of the drainage catheter, the cut-through switch and the multifunctional connector are arranged between the bag body and the threaded connector, and the cut-through switch is arranged below the multifunctional connector. And a check valve for one-way circulation from outside to inside is fixedly arranged in the combined interface of the multifunctional interface. The utility model has the beneficial effects that the check valve structure with one-way circulation is arranged in the multifunctional interface, so that the application of operations such as specimen retention of drainage liquid, bladder irrigation, drug bladder perfusion chemotherapy and the like can be completed more quickly, conveniently and safely, the related operation process is simplified, the operation efficiency is improved, and the operation cost is reduced. In addition, the drainage tube can be quickly combined and connected with different drainage tubes / ureters, can be suitable for different clinical treatment operations, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, and more specifically, in particular to a multifunctional drainage bag. Background Art

[0002] A drainage bag is a disposable transparent bag used to store fluids such as bleeding and effusion from deep inside the body or local surgery after surgery. When in use, the drainage bag needs to be connected to the drainage tube to drain and store the generated fluid. The drainage bag is mainly used to collect urine for patients with urinary incontinence, patients in a coma during surgery, and people with limited mobility, or to collect drainage fluid from wounds in conjunction with other instruments.

[0003] The main functions of drainage bags are as follows:

[0004] 1. Drainage: Drainage tubes can be used to collect blood, tissue fluid or other fluids from various body cavities or organs, such as chest drainage, abdominal drainage, urine drainage, etc. By inserting the tube into the patient's body to drain into the drainage bag, the discharged fluid can be effectively collected to avoid accumulation in the patient's body, providing a clean body cavity environment, and playing a role in alleviating symptoms and promoting recovery.

[0005] 2. Assist in observing and evaluating the patient's condition: The drainage bag is usually transparent and equipped with scale lines on the surface, which can clearly display important information such as the color, nature and amount of the drainage fluid, and can help medical staff monitor changes in the amount of drainage. The information displayed by the drainage bag plays a very important role in medical staff's assessment of the patient's condition, treatment effect, and adjustment of treatment plans. During the treatment and monitoring process, medical staff can observe and record the amount of drainage to timely understand the patient's physical condition, judge the changes in the patient's condition, effectively evaluate the treatment effect, and take corresponding measures in a timely manner.

[0006] 3. Reduce the risk of infection: The sealing design of the drainage bag can prevent the drained liquid or gas from flowing back and leaking out. The use of a drainage bag can prevent the excrement drained from the body from overflowing and reduce the risk of secondary infection for medical staff. The drainage bag can effectively keep the treatment and rehabilitation environment clean and hygienic, thereby preventing the occurrence of secondary infection.

[0007] However, there are many problems with existing drainage bags during use, the main problems include:

[0008] 1) Existing drainage bags mainly consider how to store drainage fluid, but do not consider the collection and testing of drainage fluid samples, and do not have the function of sample collection. At present, when using drainage bags for sample collection, it is only possible to directly sample and retain the drainage fluid stored in the drainage bag. Since the drainage fluid in the drainage bag is accumulated and mixed after being discharged and drained at different time periods, the various indicators in the drainage fluid discharged are different due to the different physical conditions of patients in different time periods. In addition, the drainage fluid stored in the drainage bag will be affected by environmental factors such as the retention time, temperature and humidity around the drainage bag, resulting in changes in the quality of the drainage fluid in the drainage bag. Directly collecting samples from the drainage fluid in the drainage bag affects the accuracy of the test results of the retained samples.

[0009] 2) When collecting samples from the drainage fluid stored in the drainage bag, it is necessary to open the valve below the drainage bag and collect the samples through the drainage port. After opening the valve, the drainage fluid will come into contact with the inside and outside of the drainage port when passing through the drainage port, which may easily lead to secondary contamination of the drainage fluid, resulting in a decrease in the accuracy of the test results.

[0010] 3) At present, in order to improve the accuracy of specimen detection, the entire process of urine specimen collection needs to be sterile. Before the operation, the drainage tube needs to be clamped for 30 minutes to 1 hour, and the drainage bag and the catheter need to be separated after the urine reaches the required amount of specimen collection. Only then can the specimen be collected from the end of the catheter. In addition, the drainage fluid may still be contaminated during the process of separating the catheter and the drainage bag. If the drainage bag and the catheter are not separated, there is a risk of contamination at the drainage port of the drainage bag while waiting for the urine to reach the required amount of specimen collection, which will also affect the accuracy of the detection of the collected specimen.

[0011] Improper retention and collection operation, poor clamping and sealing, or loose connection of the drainage tube may also cause drainage fluid leakage. Drainage fluid leakage will not only contaminate the bed sheets and patient clothing, but also increase the risk of infection for operators. When used, there are high operating requirements, great operating difficulty, and easy leakage and contamination unsafe problems.

[0012] 4) When patients who use drainage bags need to receive chemotherapy via intravesical instillation, the drainage bag must be separated from the catheter first, the drug must be injected into the bladder through the catheter with a syringe, the catheter must be clamped, the syringe must be separated, and the catheter and drainage bag must be reconnected.

[0013] When it is necessary to perform bladder irrigation through a double-lumen urinary catheter for a patient using a drainage bag, the drainage bag needs to be separated and taken out from the urinary catheter, and the bladder irrigation operation needs to be performed through the urinary catheter. After the irrigation is completed, the urinary catheter and the drainage bag need to be reconnected and assembled.

[0014] During the separation and operation process, the interfaces between the tube and the drainage bag will be exposed and there is a risk of contamination. Re-combination may cause retrograde infection and affect the patient's recovery.

[0015] Based on the above analysis, in order to address the problems existing in the clinical application of the above-mentioned existing drainage bags, it is necessary to develop a drainage bag structure that can improve the efficiency of drainage fluid sample collection and the accuracy of sample collection and detection and can be more convenient for other medical care operations. Summary of the invention

[0016] The purpose of the utility model is to solve the problems existing in the practical application of the above-mentioned existing drainage bags and to provide a multifunctional drainage bag that can be applied to a variety of different treatment and medical care needs.

[0017] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0018] A multifunctional drainage bag comprises a bag body, a drainage catheter, a cut-off switch and a multifunctional interface, wherein the liquid outlet end of the drainage catheter is connected to the liquid inlet of the bag body, the butt end of the drainage catheter is provided with a threaded joint, and the drainage catheter is butt-jointed with the drainage tube via the threaded joint.

[0019] The cut-off switch and the multifunctional interface are arranged between the bag body and the threaded joint, the cut-off switch is arranged below the multifunctional interface, the cut-off switch is slidably arranged on the drainage catheter, and the cut-off switch cooperates with the multifunctional interface to realize the flow blocking and cutting-off function when it is necessary to cut off the connection between the drainage catheter and the bag body. The combination interface of the multifunctional interface is extended and arranged on the side of the drainage catheter, and a check valve is fixedly arranged in the combination interface. The flow direction of the one-way channel of the check valve is from the outside to the inside from the outer end of the combination interface to the inside of the drainage catheter. The check valve is used to directly perform operations such as specimen collection, bladder flushing, drug bladder infusion chemotherapy, etc. on the discharged drainage fluid, and prevent the drainage fluid from leaking from the combination interface after the operation is completed. The outer wall of the combination interface is provided with a bayonet, and the combination interface is also equipped with a protective cap, and the bayonet and the inner wall of the protective cap are interference fit. The protective cap is used to cover the combined interface and the drainage catheter when not in use to prevent bacteria and contaminants from entering the combined interface and the drainage catheter, thereby keeping the drainage storage environment inside the drainage bag clean. Furthermore, the bayonet cooperates with the inner wall of the protective cap to improve the sealing of the combined interface after closing.

[0020] Preferably, the outer wall of the protective cap is provided with a protrusion, and one end of the protective cap is integrally connected with an interface collar, and the interface collar is sleeved on the outer wall of the combined interface. The setting of the protrusion and the interface collar facilitates medical personnel to open the protective cap with one hand when they need to perform operations such as retention or infusion. After opening, the protective cap is still connected to the combined interface and will not be lost. After the operation is completed, the protective cap can be quickly replaced without looking for it, which better prevents bacteria from entering after the operation is completed. The interface collar is arranged on the inner side of the bayonet, and the inner diameter of the sliding opening of the interface collar is smaller than the outer diameter of the bayonet. The limiting cooperation between the interface collar and the bayonet ensures that the protective cap will not fall out of the combined interface after it is opened.

[0021] Furthermore, the inner wall of the protective cap is provided with a card slot, and the card slot and the card slot are sealed and embedded in each other, thereby improving the firmness of the protective cap and the card slot after being combined and maintaining a better sealing effect.

[0022] Furthermore, an auxiliary sealing protrusion is provided inside the protective cap, and the sealing outer wall of the auxiliary sealing protrusion is in contact with the inner edge of the combined interface.

[0023] Furthermore, the sealing outer wall of the auxiliary sealing protrusion is provided with a conical sealing surface, and the auxiliary sealing protrusion with the conical sealing surface serves as an installation guide and improves the sealing performance of the combined interface when the protective cap is covered.

[0024] Preferably, a cut-off clamping groove is connected to one side of the sliding hole of the cut-off switch, a cut-off guide arc edge is provided between the sliding hole and the cut-off clamping groove, the cut-off clamping groove and the drainage catheter are clamped and cut off, and pressing grooves are provided at both ends of the cut-off switch.

[0025] The design of the sliding cut-off switch is convenient for the operator to operate the cut-off switch with one hand. By using the pressing groove and the cut-off clamp groove, the operator only needs to gently push the cut-off switch to quickly complete the cut-off of the drainage catheter and restore the flow control.

[0026] Preferably, the cut-off switch is provided with a cut-off pressing plate and a cut-off locking plate, the cut-off locking plate is arranged obliquely upward, the front end of the cut-off locking plate is provided with a cut-off sliding guide inclined surface, the cut-off sliding guide inclined surface is in sliding fit with the front end of the cut-off pressing plate, the inner side of the cut-off sliding guide inclined surface is provided with a locking protrusion, the locking protrusion is in limiting fit with the front end of the cut-off pressing plate, and the inner side of the cut-off pressing plate and the inner wall of the cut-off switch are provided with cut-off protrusions facing each other.

[0027] The design of the cut-off switch not only allows the operator to complete the cut-off operation of the drainage catheter with one hand through the limited cooperation between the cut-off pressing plate and the blocking protrusion on the cut-off blocking plate, but also allows the cut-off protrusions on both sides to clamp the drainage catheter tightly after being brought together to the middle, and the cut-off drainage catheter has a better blocking effect and provides a better cut-off sealing effect. Furthermore, the operator can separate the front end of the cut-off pressing plate from the blocking protrusion by lightly pressing the cut-off blocking plate downward, so as to achieve the purpose of quickly resuming the flow of the drainage catheter.

[0028] Preferably, a centrally symmetrical concave arc-shaped drainage bottom edge is provided at the bottom of the bag body, a drainage liquid drainage port is provided in the middle of the concave arc-shaped drainage bottom edge, the drainage liquid drainage port is connected to a drainage pipe assembly, and a drainage valve is provided in the middle of the drainage pipe. The structural design of the concave arc-shaped drainage bottom edge and the drainage liquid drainage port allows the liquid in the bag body to flow out of the drainage liquid drainage port along the concave arc-shaped drainage bottom edge when being discharged, and no residual liquid will be left in the bag body.

[0029] Preferably, the multifunctional interface is a T-shaped interface structure formed by the combination interface and the upper and lower connection ports, one of the connection ports is tightly connected to the lower end tube body of the threaded joint, and the other connection port is tightly connected to the upper end tube body of the drainage catheter.

[0030] Preferably, the threaded joint is a tapered threaded joint that is narrow at the top and wide at the bottom, and the outer edge of the docking port of the threaded joint is provided with a docking combination rounded corner. The tapered threaded joint with the docking combination rounded corner can achieve more accurate docking and faster insertion when the threaded joint is combined with the drainage tube, thereby improving the docking combination efficiency of the drainage catheter.

[0031] Furthermore, a tube body butt sealing ring sleeve is slidably provided between the bottom of the threaded joint and the connection port of the multifunctional interface, and a tube body butt sealing convex point is provided on the inner side of the tube body butt sealing ring sleeve. After the threaded joint is connected to the drainage tube, the tube body butt sealing ring sleeve is slid to be combined with the combined port of the drainage tube, and the tube body butt sealing convex point cooperates with the outer wall of the drainage tube to improve the sealing performance of the drainage tube after the connection, so as to ensure the sealing performance of the liquid flowing between the drainage tubes, and no leakage will occur during the circulation process.

[0032] Compared with the prior art, the beneficial effects of the utility model include:

[0033] The utility model is provided with a one-way flow check valve structure in the multifunctional interface, which can complete the operations of drainage fluid specimen collection, bladder flushing, bladder infusion and other operations with different functional requirements more quickly and conveniently, simplify the operation process, improve the operation efficiency, and cooperate with the multiple sealing structures. The sealing structures arranged at the operation end and the liquid inlet end can effectively ensure that the flow space in the drainage bag remains effectively sealed for a long time, providing patients with better treatment and rehabilitation conditions, and at the same time avoiding accidental leakage during different operations of specimen retention and infusion, making it safer for medical staff to operate, providing operators with more comprehensive protection effects, thereby reducing the risk of infection and being infected.

[0034] The newly designed drainage bag structure adopted by the utility model allows medical staff to directly collect specimens from the drainage fluid without separating the drainage tube and the drainage bag when it is necessary to collect specimens, thereby avoiding contamination of the drainage fluid during the separation and collection process, and through the coordinated operation of the cut-off switch, the drainage tube can be cut off in a timely and rapid manner according to the detection requirements to collect the required drainage fluid specimens, thereby improving the detection accuracy of the drainage fluid and better ensuring that the test results can accurately reflect the patient's condition, so as to provide the patient with a more targeted treatment plan and enable the patient to recover faster.

[0035] The utility model provides an integrated protective cap on the combined interface so that medical staff can smoothly open the multifunctional structure even with a single operation, and quickly and timely close the multifunctional interface after completing operations such as marking and perfusion, thereby preventing bacteria from entering and contaminating the internal environment, keeping the multifunctional interface clean and sealed, and preventing drainage fluid leakage.

[0036] The utility model can be quickly combined and connected with different drainage tubes / urinary catheters, can be suitable for different clinical treatment operations, has a wide range of applications, improves operating efficiency, can complete the cutoff and flow processing of the drainage tube with one hand, is easy to use, convenient and safe to operate, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the utility model.

[0038] Figure 2 It is a schematic diagram of the structure of the cut-off switch of the utility model in the closed state.

[0039] Figure 3 It is a schematic diagram of the internal structure of the multifunctional interface and the cross-sectional structure of the protective cap of the utility model.

[0040] Figure 4 It is a structural schematic diagram of the second embodiment of the utility model.

[0041] Figure 5It is a schematic diagram of the truncation action of the second embodiment of the utility model.

[0042] Figure 6 It is a structural schematic diagram of the sixth embodiment of the utility model.

[0043] Figure 7 It is a half-section assembly schematic diagram of a pipe body butt-jointed sealing ring sleeve of the utility model.

[0044] Description of Figure Numbers:

[0045] Bag body-1, drainage catheter-2, cut-off switch-3, multifunctional interface-4, threaded joint-5, tube body docking sealing ring sleeve-6, check valve-7, bayonet-8, protective cap-9, interface ring-10, drainage liquid discharge port-11, discharge pipe-12, discharge valve-13, concave arc-shaped discharge bottom edge-14, sliding hole-31, cut-off clamping groove-32, cut-off guide arc edge-33, pressing groove-34, cut-off pressing plate-35, cut-off clamping plate-36, cut-off sliding guide inclined surface-37, clamping protrusion-38, cut-off protrusion-39, combined interface-41, combined chamfered corner-51, tube body docking sealing convex point-61, clamping groove-91, auxiliary sealing convex block-92, protrusion-93. DETAILED DESCRIPTION

[0046] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0047] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0048] The present invention is further described below with reference to specific embodiments and accompanying drawings:

[0049] Figures 1 to 7The utility model is a schematic diagram of each structure of the utility model. Further, the utility model is a multifunctional drainage bag, comprising a bag body 1, a drainage catheter 2, a cut-off switch 3 and a multifunctional interface 4, the liquid outlet end of the drainage catheter 2 is connected to the liquid inlet of the bag body 1, and the butt end of the drainage catheter 2 is provided with a threaded joint 5, and the drainage catheter 2 is butt-jointed with the drainage tube through the threaded joint 5.

[0050] The cut-off switch 3 and the multifunctional interface 4 are arranged between the bag body 1 and the threaded joint 5, the cut-off switch 3 is arranged below the multifunctional interface 4, the cut-off switch 3 is slidably arranged on the drainage catheter 2, and the cut-off switch 3 cooperates with the multifunctional interface 4 to realize the flow blocking and cutting function when it is necessary to cut off the connection between the drainage catheter 2 and the bag body 1. The combination interface 41 of the multifunctional interface 4 is extended and arranged on the side of the drainage catheter 2, and a check valve 7 is fixedly arranged in the combination interface 41. The flow direction of the one-way channel of the check valve 7 is from the outside to the inside from the outer end of the combination interface 41 to the inside of the drainage catheter 2. The check valve 7 is used to directly perform operations such as specimen collection, bladder flushing, drug bladder infusion chemotherapy, etc. on the discharged drainage fluid, and prevent the drainage fluid from leaking from the combination interface 41 after the operation is completed. The outer wall of the combination interface 41 is provided with a bayonet 8, and the combination interface 41 is also equipped with a protective cap 9, and the bayonet 8 and the inner wall of the protective cap 9 are interference fit. The protective cap 9 is used to cover the combination interface 41 and the drainage catheter 2 when it is not in use, so as to prevent bacteria and contaminants from entering the combination interface 41 and the drainage catheter 2, thereby keeping the drainage storage environment inside the drainage bag clean. Furthermore, the bayonet 8 cooperates with the inner wall of the protective cap 9 to improve the sealing performance of the combination interface 41 after closing.

[0051] Preferably, the outer wall of the protective cap 9 is provided with a protrusion 93, and one end of the protective cap 9 is integrally connected with an interface ring 10, and the interface ring 10 is sleeved on the outer wall of the combination interface 41. The setting of the protrusion 93 and the interface ring 10 facilitates medical personnel to open the protective cap 9 with one hand when they need to perform operations such as retention or infusion. After opening, the protective cap 9 is still connected to the combination interface 41 and will not be lost. After the operation is completed, the protective cap 9 can be quickly replaced without looking for it, which better avoids bacteria from entering after the operation is completed. The interface ring 10 is arranged on the inner side of the bayonet 8, and the inner diameter of the sliding opening of the interface ring 10 is smaller than the outer diameter of the bayonet 8. The limiting cooperation between the interface ring 10 and the bayonet 8 ensures that the protective cap 9 will not fall out of the combination interface 41 after it is opened.

[0052] Furthermore, the inner wall of the protective cap 9 is provided with a card slot 91, and the card slot 91 and the bayonet 8 are sealed and embedded in each other, thereby improving the firmness of the protective cap 9 and the bayonet 8 after being combined and maintaining a better sealing effect.

[0053] Furthermore, an auxiliary sealing protrusion 92 is provided inside the protective cap 9 , and a sealing outer wall of the auxiliary sealing protrusion 92 is in contact with an inner edge of the combined interface 41 .

[0054] Furthermore, the sealing outer wall of the auxiliary sealing protrusion 92 is provided with a conical sealing surface, and the auxiliary sealing protrusion 92 with the conical sealing surface serves as an installation guide and improves the sealing performance of the combined interface 41 when the protective cap 9 is covered.

[0055] Preferably, a cut-off clamping groove 32 is connected to one side of the sliding hole 31 of the cut-off switch 3, a cut-off guide arc edge 33 is provided between the sliding hole 31 and the cut-off clamping groove 32, the cut-off clamping groove 32 and the drainage catheter 2 are clamped and cut off, and pressing grooves 34 are provided at both ends of the cut-off switch 3.

[0056] Furthermore, the sliding cut-off switch is convenient for the operator to operate the cut-off switch 3 with one hand. By using the pressing groove 34 and the cut-off clamping groove 32 , the operator only needs to gently push the cut-off switch 3 to quickly complete the cut-off and resumption of flow control of the drainage catheter 2 .

[0057] Preferably, the cut-off switch 3 is provided with a cut-off pressing plate 35 and a cut-off locking plate 36, the cut-off locking plate 36 is arranged obliquely upward, and a cut-off sliding guide inclined surface 37 is provided at the front end of the cut-off locking plate 36, and the cut-off sliding guide inclined surface 37 is slidably matched with the front end of the cut-off pressing plate 35, and a locking protrusion 38 is provided on the inner side of the cut-off sliding guide inclined surface 37, and the locking protrusion 38 is limitedly matched with the front end of the cut-off pressing plate 35, and a cut-off protrusion 39 is provided on the inner side of the cut-off pressing plate 35 and opposite to the inner wall of the cut-off switch 3.

[0058] Furthermore, the design of the cut-off switch 3 not only allows the operator to complete the cut-off operation of the drainage catheter 2 with one hand through the limited cooperation between the cut-off pressing plate 35 and the blocking protrusion 38 of the cut-off blocking plate 36, but also allows the cut-off protrusion 39 after the two sides are brought together to the middle to clamp the drainage catheter 2 tightly and make the clamped and cut-off drainage catheter 2 have a better blocking and flow-blocking effect, providing a better cut-off sealing effect. Furthermore, the operator can separate the front end of the cut-off pressing plate 35 from the blocking protrusion 38 by lightly pressing the cut-off blocking plate 36 downward, so as to achieve the purpose of quickly restoring the flow of the drainage catheter 2.

[0059] Preferably, a centrally symmetrical concave arc-shaped drainage bottom edge 14 is provided at the bottom of the bag body 1, a drainage liquid drainage port 11 is provided in the middle of the concave arc-shaped drainage bottom edge 14, the drainage liquid drainage port 11 is combined and connected with a drainage pipe 12, and a drainage valve 13 is provided in the middle of the drainage pipe 12. The structural design of the concave arc-shaped drainage bottom edge 14 and the drainage liquid drainage port 11 allows the liquid in the bag body 1 to flow out of the drainage liquid drainage port 11 along the concave arc-shaped drainage bottom edge 14 when being discharged, and no residual liquid will be left in the bag body 1.

[0060] Preferably, the multifunctional interface 4 is a T-shaped interface structure formed by the combination interface 41 and the upper and lower connection ports, one of the connection ports is tightly connected to the lower end tube body of the threaded joint 5, and the other connection port is tightly connected to the upper end tube body of the drainage catheter 2.

[0061] Preferably, the threaded joint 5 is a tapered threaded joint 5 that is narrow at the top and wide at the bottom, and the outer edge of the docking port of the threaded joint 5 is provided with a docking combination chamfer 51. The tapered threaded joint with the docking combination chamfer 51 can be more accurately docked and inserted more quickly when the threaded joint 5 is assembled to the drainage tube, thereby improving the docking and assembly efficiency of the drainage catheter 2.

[0062] Furthermore, a tube body butt sealing ring sleeve 6 is slidably provided between the lower part of the threaded joint 5 and the connection port of the multifunctional interface 4, and a tube body butt sealing convex point 61 is provided on the inner side of the tube body butt sealing ring sleeve 6. After the threaded joint 5 is connected to the drainage tube, the tube body butt sealing ring sleeve 6 is slid to be combined with the combined port of the drainage tube, and the tube body butt sealing convex point 61 cooperates with the outer wall of the drainage tube to improve the sealing performance of the drainage catheter 2 after the connection with the drainage tube, so as to ensure the sealing performance of the liquid flowing between the drainage tube and the drainage catheter 2, and no leakage will occur during the circulation process.

[0063] First embodiment:

[0064] In this embodiment, when using the multifunctional drainage bag provided by the utility model, the threaded joint 5 of the drainage catheter 2 is combined with the connecting end of the drainage tube to connect the drainage catheter 2 with the drainage tube / urinary catheter, and the cut-off switch 3 is opened to put the drainage catheter 2 in a flow state, allowing the drainage fluid to flow smoothly into the bag body 1 for normal drainage.

[0065] When the operator needs to take a sample of the drainage fluid, the operator can hold the drainage catheter 2 with one hand and press the pressing groove 34 with the thumb, and push the sliding hole 31 in the direction of the truncation clamp groove 32, so that the drainage catheter 2 is clamped into the truncation clamp groove 32 along the truncation guide arc edge 33. The truncation clamp groove 32 clamps the drainage catheter 2 to form a truncation state, cutting off the connection between the drainage catheter 2 and the bag body 1, and opens the protective cap 9 through the protrusion 93. The syringe's collection pillow is inserted into the one-way channel of the check valve 7 and extended into the drainage catheter 2 to extract the sample of the drainage fluid. After the specimen extraction volume reaches the required amount, the connection between the syringe and the check valve 7 is separated, the check valve 7 is automatically closed, and the protective cap 9 is quickly covered so that the inner wall of the protective cap 9 is combined with the bayonet 8 of the outer wall of the combination interface 41 to restore the combination interface 41 to a sealed state.

[0066] When the drainage catheter 2 needs to be restored to flow after the specimen collection operation is completed, the pressing groove 34 on the opposite side is only needed to push the cut-off switch 3 in the opposite direction, so that the drainage catheter 2 slides from the cut-off clamping groove 32 to the sliding hole 31, and then the cut-off switch 3 is opened to restore the flow of the drainage catheter 2, and the drainage fluid can smoothly flow into the bag body 1 through the drainage catheter 2. The specimen collected in the syringe is stored for inspection, and the specimen collection operation is completed.

[0067] When bladder irrigation is needed, the cut-off switch 3 is pushed and closed in the same manner, the protective cap 9 is opened, the syringe containing the irrigation liquid is connected to the check valve 7, and the syringe is operated through the one-way channel of the check valve 7 to push the irrigation liquid into the connected urinary catheter through the clamped drainage catheter 2. After the irrigation is completed, the combination of the syringe and the check valve 7 is separated. When the irrigation time is up, the cut-off switch 3 is pushed in the opposite direction to open the drainage and cleaning operations to complete the bladder irrigation operation.

[0068] When it is necessary to perform bladder irrigation on a patient with an indwelling double-lumen urinary catheter, there is no need to separate the connection between the bag body 1 and the urinary catheter. The cut-off switch 3 can be clamped, the protective cap 9 can be opened, and the flushing infusion tube can be directly connected through the check valve 7 of the combination interface 41. The bladder can be flushed through the one-way channel of the check valve 7. After the flushing is completed, the connection between the flushing infusion tube and the check valve 7 can be separated, the protective cap 9 can be covered again, and the cut-off switch 3 can be opened to complete the bladder flushing operation.

[0069] In this embodiment, after the protective cap 9 is opened, the protective cap 9 remains connected to the combination interface 41 and will not fall off through the integrally connected interface ring 10 mounted on the combination interface 41, so that the operator can directly cover the combination interface 41 with the protective cap 9 after completing the operation without having to take the protective cap 9, thereby preventing bacteria from entering the combination interface 41 and maintaining the sealing of the multi-function interface 4.

[0070] The design of the cut-off switch 3 in this embodiment allows the operator to cut off the drainage catheter 2 and restore the drainage catheter 2 to a flowing state with one hand, which is more convenient to operate and has a good blocking and cutting effect.

[0071] Second embodiment:

[0072] This embodiment is similar to the first embodiment, except that the cut-off switch 3 provided with a cut-off pressing plate 35 and a cut-off locking plate 36 is adopted in this embodiment, the cut-off locking plate 36 is inclined upward, and a cut-off sliding guide inclined surface 37 is provided at the front end of the cut-off locking plate 36, and the cut-off sliding guide inclined surface 37 is slidably matched with the front end of the cut-off pressing plate 35, and a locking protrusion 38 is provided on the inner side of the cut-off sliding guide inclined surface 37, and the locking protrusion 38 is limitedly matched with the front end of the cut-off pressing plate 35, and a cut-off protrusion 39 is provided on the inner side of the cut-off pressing plate 35 and opposite to the inner wall of the cut-off switch 3.

[0073] When the operator needs to use the cut-off switch 3 to cut off the drainage catheter 2, the operator slides and adjusts the cut-off switch 3 to a suitable position, and then presses the cut-off pressing plate 35 inwardly, so that the inner side of the cut-off pressing plate 35 and the cut-off protrusion 39 on the inner wall of the cut-off switch 3 are close to the middle. When the cut-off pressing plate 35 is pressed inwardly, the front end of the cut-off pressing plate 35 will slide toward the locking protrusion 38 along the cut-off sliding guide inclined surface 37. During the process of the cut-off pressing plate 35 moving inwardly, the cut-off locking plate 36 will be pressed downwardly until the cut-off pressing plate 35 passes through the cut-off sliding guide inclined surface 37 and is locked on the rear side of the locking protrusion 38. The cut-off locking plate 36 pops up and resets, and the position of the cut-off pressing plate 35 is fixed by the locking protrusion 38, so that the cut-off protrusions 39 on both sides of the drainage catheter 2 tightly cut off the flow of the drainage fluid in the drainage catheter 2, and the drainage catheter 2 is clamped and cut off.

[0074] When the drainage catheter 2 needs to be restored to circulation after completing operations such as specimen collection or bladder flushing, bladder injection, etc., the operator only needs to press down the cut-off locking plate 36 to release the locking protrusion 38 from the limit on the cut-off pressing plate 35, and the cut-off pressing plate 35 pops out and resets, and the cut-off protrusions 39 on both sides release the clamping of the drainage catheter 2, so that the drainage catheter 2 can be restored to circulation and restored to a connected state with the bag body 1, and drainage can continue to be used.

[0075] Third embodiment:

[0076] This embodiment is similar to the first embodiment, except that the inner wall of the protective cap 9 in this embodiment is further provided with a card slot 91. After the protective cap 9 is covered on the combination interface 41, the card slot 8 is embedded in the card slot 91 by pressing the protective cap 9 to form a sealed isolation structure, thereby more effectively isolating the combination interface 41 from the external air.

[0077] The bag body 1 in this embodiment is provided with a centrally symmetrical concave arc-shaped drainage bottom edge 14 at the bottom, a drainage liquid discharge port 11 is provided in the middle of the concave arc-shaped drainage bottom edge 14, the drainage liquid discharge port 11 is combined and connected with a drainage pipe 12, and a drainage valve 13 is provided in the middle of the drainage pipe 12. The structural design of the concave arc-shaped drainage bottom edge 14 and the drainage liquid discharge port 11 allows the liquid in the bag body 1 to flow out of the drainage liquid discharge port 11 along the concave arc-shaped drainage bottom edge 14 when being discharged, and no residual liquid will be left in the bag body 1.

[0078] When the liquid in the bag body 1 needs to be discharged, the lower end outlet of the drainage pipe 12 can be connected to the waste liquid collector, and then the drainage valve 13 is opened to allow the liquid in the bag body 1 to flow into the waste liquid collector. The residual liquid in the bag body 1 can be guided along the inner edge of the concave arc-shaped drainage bottom edge 14 through the drainage liquid discharge port 11 to flow to the waste liquid collector.

[0079] Fourth embodiment:

[0080] This embodiment is similar to the aforementioned embodiment, except that an auxiliary sealing protrusion 92 is provided inside the protective cap 9 in this embodiment, and a conical sealing surface is provided on the sealing outer wall of the auxiliary sealing protrusion 92. When the protective cap 9 is installed on the combination interface 41, the conical sealing surface cooperates with the guiding of the inner edge of the combination interface 41 to smoothly and quickly complete the cover closing operation. At the same time, the fitting of the conical sealing surface with the inner edge of the combination interface 41 can further improve the sealing performance of the multi-function interface 4 when not in use.

[0081] Fifth embodiment:

[0082] This embodiment is similar to the above embodiment, except that the threaded joint 5 in this embodiment is a tapered threaded joint that is narrow at the top and wide at the bottom, and the outer edge of the docking port of the threaded joint 5 is also provided with a docking combination chamfer 51. The design of the tapered threaded joint with the docking combination chamfer 51 can be used to quickly insert the drainage catheter 2 of the drainage bag of this embodiment into the drainage tube / urinary catheter that needs to be docked with different specifications under the sliding action between the tapered threaded joint and the docking combination chamfer 51 and the docking port of the drainage tube / urinary catheter into the drainage tube / urinary catheter, so that the drainage catheter 2 can be accurately and quickly inserted into the drainage tube / urinary catheter, and then the tapered threaded joint and the external thread and the threaded sealing combination of the inner wall of the drainage tube / urinary catheter make the drainage catheter 2 and the drainage tube / urinary catheter more tightly and sealedly connected and combined together.

[0083] Sixth embodiment:

[0084] This embodiment is similar to the aforementioned embodiment, except that a tube body docking sealing ring sleeve 6 is slidably provided between the bottom of the threaded joint 5 and the connection port of the multi-functional interface 4 in this embodiment, and a tube body docking sealing protrusion 61 is provided on the inner side of the tube body docking sealing ring sleeve 6.

[0085] After the threaded joint 5 is connected to the drainage tube / urinary catheter, in order to further improve the sealing performance of the connection between the drainage catheter 2 and the drainage tube / urinary catheter, the tube body docking sealing ring sleeve 6 is pushed up to the docking port combination of the drainage tube / urinary catheter, and the tube body docking sealing protrusion 61 cooperates with the outer wall of the drainage tube / urinary catheter to tightly lock the drainage tube / urinary catheter on the drainage catheter 2 to ensure that during the drainage process, the liquid in the tube will not leak from the connection combination.

[0086] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A multifunctional drainage bag, characterized in that: The invention comprises a bag body (1), a drainage catheter (2), a cut-off switch (3) and a multifunctional interface (4), wherein the liquid outlet end of the drainage catheter (2) is connected to the liquid inlet of the bag body (1), the butt end of the drainage catheter (2) is provided with a threaded joint (5), the cut-off switch (3) and the multifunctional interface (4) are arranged between the bag body (1) and the threaded joint (5), the cut-off switch (3) is arranged below the multifunctional interface (4), and the cut-off switch (3) is slidably arranged on the drainage catheter (2). The combination interface (41) of the multifunctional interface (4) extends out from the side of the drainage catheter (2), a check valve (7) is fixedly arranged in the combination interface (41), and the flow direction of the one-way channel of the check valve (7) is from the outside to the inside, from the outer end of the combination interface (41) to the inside of the drainage catheter (2), and the outer wall of the combination interface (41) is provided with a bayonet (8), and the combination interface (41) is also installed with a protective cap (9), and the bayonet (8) and the inner wall of the protective cap (9) are interference fit.

2. The multifunctional drainage bag according to claim 1, characterized in that: The outer wall of the protective cap (9) is provided with a protrusion (93), one end of the protective cap (9) is integrally connected with an interface ring (10), the interface ring (10) is sleeved on the outer wall of the combined interface (41), the interface ring (10) is arranged on the inner side of the bayonet (8), and the inner diameter of the sliding opening of the interface ring (10) is smaller than the outer diameter of the bayonet (8).

3. The multifunctional drainage bag according to claim 2, characterized in that: The inner wall of the protective cap (9) is provided with a card slot (91), and the card slot (91) and the card slot (8) are mutually sealed and embedded in a combined manner.

4. The multifunctional drainage bag according to any one of claims 1 to 3, characterized in that: An auxiliary sealing protrusion (92) is provided inside the protective cap (9), and the sealing outer wall of the auxiliary sealing protrusion (92) is in contact with the inner edge of the combined interface (41).

5. The multifunctional drainage bag according to claim 4, characterized in that: The sealing outer wall of the auxiliary sealing protrusion (92) is provided with a conical sealing surface.

6. The multifunctional drainage bag according to claim 1, characterized in that: A cut-off clamping groove (32) is connected to one side of the sliding hole (31) of the cut-off switch (3); a cut-off guide arc edge (33) is provided between the sliding hole (31) and the cut-off clamping groove (32); the cut-off clamping groove (32) and the drainage catheter (2) are in a clamping and cutting cooperation; and pressing grooves (34) are provided at both ends of the cut-off switch (3).

7. The multifunctional drainage bag according to claim 1, characterized in that: The cut-off switch (3) is provided with a cut-off pressing plate (35) and a cut-off locking plate (36); the cut-off locking plate (36) is arranged to be inclined upward; a cut-off sliding guide inclined surface (37) is provided at the front end of the cut-off locking plate (36); the cut-off sliding guide inclined surface (37) is in sliding engagement with the front end of the cut-off pressing plate (35); a locking protrusion (38) is provided on the inner side of the cut-off sliding guide inclined surface (37); the locking protrusion (38) is in limiting engagement with the front end of the cut-off pressing plate (35); a cut-off protrusion (39) is provided on the inner side of the cut-off pressing plate (35) and opposite to the inner wall of the cut-off switch (3).

8. The multifunctional drainage bag according to claim 1, characterized in that: A centrally symmetrical concave arc-shaped drainage bottom edge (14) is provided below the bag body (1); a drainage liquid discharge port (11) is provided in the middle of the concave arc-shaped drainage bottom edge (14); the drainage liquid discharge port (11) is combined and connected with a drainage pipe (12); and a drainage valve (13) is provided in the middle of the drainage pipe (12).

9. The multifunctional drainage bag according to claim 1, characterized in that: The threaded joint (5) is a tapered threaded joint (5) that is narrow at the top and wide at the bottom, and a butt joint combined chamfer (51) is provided on the outer edge of the butt joint port of the threaded joint (5).

10. The multifunctional drainage bag according to claim 1 or 9, characterized in that: A pipe body butt joint sealing ring sleeve (6) is slidably provided between the bottom of the threaded joint (5) and the connection port of the multifunctional interface (4), and a pipe body butt joint sealing protrusion (61) is provided on the inner side of the pipe body butt joint sealing ring sleeve (6).

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