Anti-backflow exhaust drainage bag structure

Abstract

The utility model relates to the technical field of drainage bags, in particular to an anti-backflow exhaust drainage bag structure which comprises a drainage bag body, a liquid inlet pipe is communicated with the top face of the drainage bag body, a non-return assembly is connected to the liquid inlet pipe in an inserted mode, a non-return pipe is arranged on the non-return assembly, and a liquid drainage sealing pipe is communicated with the bottom face of the drainage bag body. One end of the bottom face of the drainage bag body is communicated with an exhaust pipe, an exhaust assembly is inserted into the upper end of the exhaust pipe, an insertion pipe is arranged on the exhaust assembly, the peripheral wall of the insertion pipe is slidably connected with the inner wall of the exhaust pipe, and the upper end of the insertion pipe is in threaded connection with a connecting round block through an internal thread. And the inner wall of the screw cap is in threaded connection with the external thread on the peripheral wall of the upper end of the exhaust pipe through the internal thread. According to the drainage bag, liquid backflow is prevented, safety and reliability in the drainage process are guaranteed, exhaust use of the drainage bag body is facilitated, the non-return assembly and the exhaust assembly are reused after disinfection treatment, the medical cost is reduced, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage bags, in particular to a drainage bag structure which is anti-backflow and can be vented. Background Art

[0002] Drainage bags are widely used in the medical field, especially in situations where liquids or gases need to be discharged from the human body, such as urine, bile, gastric juice, etc. The design of this drainage bag is to ensure that the liquid or gas will not flow back into the body when it flows out, so as to avoid contamination or damage.

[0003] After searching, a Chinese patent with publication number CN213251670U was found, which provides a disposable drainage bag with one-way exhaust and backflow prevention functions. The exhaust pipe is installed at the upper edge of the drainage bag. The upper part of the exhaust pipe is located outside the drainage bag and is equipped with a one-way exhaust nozzle. The one-way exhaust nozzle can effectively exhaust air outward and automatically prevent external air from entering the drainage bag. The liquid inlet anti-backflow nozzle is installed at the inner opening of the liquid inlet pipe. The liquid inlet anti-backflow nozzle replaces the existing anti-backflow film, avoids gas accumulation in the drainage bag, ensures smooth drainage, and can effectively prevent backflow.

[0004] However, it was found during use that most drainage bags are disposable, but the anti-backflow and exhaust structures are usually fixedly installed on the drainage bags. Both the drainage bags and the anti-backflow and exhaust structures are disposable. For patients and medical institutions, the cost of disposable use is high, resulting in unnecessary waste of resources and cost increases, which is not conducive to the widespread use of drainage bags. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a drainage bag structure with anti-backflow and exhaust function, which prevents liquid backflow, ensures the safety and reliability of the drainage process, and facilitates the exhaust of the drainage bag body. The reuse of the anti-backflow component and the exhaust component after disinfection reduces medical costs and reduces resource waste.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a drainage bag structure with anti-backflow and exhaust function, comprising a drainage bag body, the top surface of the drainage bag body is connected to a liquid inlet pipe, the liquid inlet pipe is plugged with a non-return assembly, the non-return assembly is provided with a non-return pipe, the bottom surface of the drainage bag body is connected to a drainage sealing pipe, one end of the bottom surface of the drainage bag body is connected to an exhaust pipe, the upper end of the exhaust pipe is plugged with an exhaust assembly, the exhaust assembly is provided with a cannula, the outer peripheral wall of the cannula is slidably connected to the inner wall of the exhaust pipe, the upper end of the cannula is threadedly connected to a connecting round block via an internal thread, the top surface of the connecting round block is fixed with a screw cover, the inner wall of the screw cover is threadedly connected to the external thread of the outer peripheral wall of the upper end of the exhaust pipe via an internal thread, and a plurality of ventilation holes are respectively provided on the connecting round block and the screw cover.

[0007] Preferably, two easy-folding grooves are provided on the outer peripheral wall of the liquid discharge sealing tube.

[0008] Through the above technical solution, after the drainage sealing tube is broken through the easy-to-break groove, the liquid inside the drainage bag body is discharged, and the drainage bag body after drainage can be placed in a medical supplies recycling box, which facilitates the collection and use of the drainage bag body.

[0009] Preferably, the anti-return assembly includes a clamping tube, and two of the clamping tubes are symmetrically structured. The two clamping tubes are respectively fixedly connected to the anti-return tube, and two anti-slip rings are sleeved on the outer peripheral wall of the clamping tube. The clamping tube and the anti-slip ring at the lower end are respectively plugged into and matched with the liquid inlet pipe.

[0010] Through the above technical solution, the connection stability of the non-return pipe is improved by preventing the ring from falling off.

[0011] Preferably, a guide block is fixedly provided on the middle side wall of the non-return tube, a rotating shaft is rotatably connected to the guide block, a non-return plate is fixedly provided on the rotating shaft, a baffle is abutted at the top edge of the non-return plate, and the baffle is fixedly provided on the inner wall of the non-return tube.

[0012] Through the above technical solution, the liquid flows into the drainage bag body through the check tube and the liquid inlet tube, and the liquid is drained through the guide block, pushing the check plate and the rotating shaft to rotate along the guide block.

[0013] Preferably, a tension spring is installed on the top surface of the anti-return plate through a mounting seat, and the tension spring is fixedly connected to the inner wall of the anti-return tube. A limit block is fixed on the bottom surface of the guide block, and the side wall of the limit block is inclined.

[0014] Through the above technical solution, the anti-return plate is separated from the baffle and the tension spring is stretched. At this time, the anti-return plate abuts against the limit block to limit the position.

[0015] Preferably, the exhaust assembly includes a filter block, a circular ring is mounted on the filter block, the outer peripheral wall of the filter block is plug-fitted with the inner wall of the lower end of the insert tube, and the outer peripheral wall of the circular ring is slidably connected with the inner wall of the exhaust pipe.

[0016] Preferably, a plurality of elastic clamps are fixedly provided on the top surface of the circular ring in a uniformly arranged structure, an annular groove is provided on the outer peripheral wall of the lower end of the insert tube, and the protrusion of the elastic clamp is engaged with the annular groove.

[0017] Through the above technical solution, the filter block is plugged into the cannula, and the elastic clamp is clamped into the annular groove.

[0018] Preferably, a placement cavity is opened at the upper end of the insertion tube, a hollow block is installed on the bottom surface of the placement cavity, and a waterproof breathable membrane is embedded on the bottom surface of the hollow block.

[0019] Through the above technical solution, the filtered gas passes through the waterproof breathable membrane and the hollow block, enters the placement cavity, is adsorbed and deodorized by adsorption materials such as activated carbon, and is discharged to the outside through the vent, which facilitates the exhaust use of the drainage bag body.

[0020] Beneficial effects of the utility model:

[0021] 1. Connect the check tube with the liquid inlet tube, connect the upper end of the check tube with the drainage tube on the patient, and improve the connection stability of the check tube through the anti-slip ring, so that the liquid in the drainage tube flows into the drainage bag body through the check tube and the liquid inlet tube. The liquid is drained through the guide block, pushing the check plate and the rotating shaft to rotate along the guide block. The check plate is separated from the baffle and the tension spring is stretched. At this time, the check plate abuts against the limit block for limiting. When the liquid stops flowing in, the tension spring resets, driving the check plate back to its original position and abutting against the baffle, thereby preventing the liquid from flowing back and ensuring the safety and reliability of the drainage process.

[0022] 2. When there is too much gas in the drainage bag body, the gas is exhausted through the exhaust pipe and the exhaust assembly, thereby avoiding patient discomfort caused by excessive gas in the drainage bag body; after the drainage bag body completes collection, the check tube is disassembled and disinfected, so that it is convenient to replace it with a new drainage bag body for reuse. After the drainage bag body completes collection, the drainage sealing tube of the drainage bag body is rotated to the upper end, and the drainage sealing tube is broken through the easy-to-break groove to discharge the liquid inside the drainage bag body. The drainage bag body after drainage can be placed in a medical supplies recycling box, which facilitates the collection and use of the drainage bag body, avoids patient discomfort caused by gas accumulation, improves patient comfort, reduces medical costs, reduces resource waste, simplifies the medical waste treatment process, and improves work efficiency.

[0023] 3. When there is too much gas in the drainage bag body, the gas enters the lower end of the cannula through the exhaust pipe, and the gas is filtered by the filter block. After the filtered gas passes through the waterproof breathable membrane and the hollow block, it enters the placement cavity and is adsorbed and deodorized by adsorption materials such as activated carbon, and then discharged to the outside through the vent, which facilitates the exhaust of the drainage bag body. The filter block effectively removes impurities and particles in the gas, and the adsorption and deodorization effect of adsorption materials such as activated carbon further purifies the gas, ensuring the purity and harmlessness of the discharged gas.

[0024] 4. After the drainage bag body has completed collection, when a new drainage bag body needs to be replaced, the cannula is disassembled and disinfected, and the corresponding filter block, activated carbon and other adsorption materials are replaced according to the usage before reuse. This reduces the cost of using the drainage bag body, reduces the waste of medical resources and the consumption of disposable medical supplies, reduces the amount of medical waste generated, and helps promote environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is an enlarged schematic diagram of the structure at point A of the present utility model;

[0027] Figure 3 This is a schematic structural diagram of the anti-return component of the utility model;

[0028] Figure 4 This is a bottom-up perspective view of the limit block structure of the present utility model;

[0029] Figure 5 This is a schematic diagram of the assembly of the screw cap structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the assembly of the cannula structure of the present invention;

[0031] Figure 7 This is a bottom-up stereoscopic view of the elastic clamp structure of the present invention.

[0032] In the figure: 1. Drainage bag body; 2. Liquid inlet pipe; 3. Anti-return assembly; 301. Anti-return pipe; 302. Clamping pipe; 303. Anti-slip ring; 304. Guide block; 305. Rotating shaft; 306. Anti-return plate; 307. Baffle; 308. Tension spring; 309. Limit block; 4. Drain sealing pipe; 5. Exhaust pipe; 6. Exhaust assembly; 601. Intubation; 602. Connecting round block; 603. Tightening cover; 604. Filter block; 605. Ring; 606. Elastic clamp; 607. Annular groove; 608. Placement cavity; 609. Vent; 610. Hollow block; 611. Waterproof and breathable membrane; 7. Easy-to-fold groove. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0034] like Figure 1-4As shown, this embodiment provides a drainage bag structure with anti-backflow and exhaust function, including a drainage bag body 1, the top surface of the drainage bag body 1 is connected to a liquid inlet pipe 2, a non-return assembly 3 is inserted on the liquid inlet pipe 2, and a non-return pipe 301 is provided on the non-return assembly 3, the bottom surface of the drainage bag body 1 is connected to a drainage sealing pipe 4, one end of the bottom surface of the drainage bag body 1 is connected to an exhaust pipe 5, an exhaust assembly 6 is inserted inside the upper end of the exhaust pipe 5, and a cannula 601 is provided on the exhaust assembly 6, the outer peripheral wall of the cannula 601 is slidably connected to the inner wall of the exhaust pipe 5, the upper end of the cannula 601 is threadedly connected to a connecting round block 602 through an internal thread, and a screw cover 603 is fixed on the top surface of the connecting round block 602, the inner wall of the screw cover 603 is threadedly connected to the external thread of the outer peripheral wall of the upper end of the exhaust pipe 5 through an internal thread, and a plurality of ventilation holes 609 are respectively provided on the connecting round block 602 and the screw cover 603.

[0035] Two easy-to-break grooves 7 are provided on the outer wall of the drainage sealing tube 4; after breaking the drainage sealing tube 4 through the easy-to-break grooves 7, the liquid inside the drainage bag body 1 is discharged, and the drainage bag body 1 after drainage can be placed in a medical supplies recycling box, which facilitates the collection and use of the drainage bag body 1.

[0036] The anti-return assembly 3 includes a clamping tube 302, which is a symmetrical structure with two clamping tubes 302. The two clamping tubes 302 are fixedly connected to the anti-return tube 301 respectively. Two anti-slip rings 303 are sleeved on the outer peripheral wall of the clamping tube 302. The clamping tube 302 and the anti-slip ring 303 at the lower end are respectively plugged into and matched with the liquid inlet pipe 2; the anti-slip ring 303 improves the connection stability of the anti-return tube 301.

[0037] A guide block 304 is fixedly provided on the middle side wall of the non-return tube 301, and a rotating shaft 305 is rotatably connected to the guide block 304. A non-return plate 306 is fixedly provided on the rotating shaft 305. A baffle 307 is abutted at the edge of the top surface of the non-return plate 306, and the baffle 307 is fixedly provided on the inner wall of the non-return tube 301; the liquid flows into the drainage bag body 1 through the non-return tube 301 and the liquid inlet pipe 2, and the liquid is drained through the guide block 304, pushing the non-return plate 306 and the rotating shaft 305 to rotate along the guide block 304.

[0038] A tension spring 308 is installed on the top surface of the anti-return plate 306 through a mounting seat. The tension spring 308 is fixedly connected to the inner wall of the anti-return tube 301. A limit block 309 is fixed on the bottom surface of the guide block 304, and the side wall of the limit block 309 is inclined; the anti-return plate 306 is separated from the baffle 307 and the tension spring 308 is stretched. At this time, the anti-return plate 306 abuts against the limit block 309 for limiting.

[0039] Working principle: First, the check tube 301 is connected with the liquid inlet tube 2, and the upper end of the check tube 301 is connected with the drainage tube on the patient. The anti-slip ring 303 improves the connection stability of the check tube 301, so that the liquid in the drainage tube flows into the drainage bag body 1 through the check tube 301 and the liquid inlet tube 2. The liquid is drained through the guide block 304, pushing the check plate 306 and the rotating shaft 305 to rotate along the guide block 304. The check plate 306 separates from the baffle 307 and stretches the tension spring 308. At this time, the check plate 306 abuts against the limit block 309 for limiting. When the liquid stops flowing in, the tension spring 308 resets, driving the check plate 306 back to its original position and abutting against the baffle 307, thereby preventing the liquid from flowing back and ensuring the safety and reliability of the drainage process.

[0040] When there is too much gas in the drainage bag body 1, the gas is exhausted through the exhaust pipe 5 and the exhaust assembly 6, thereby avoiding patient discomfort caused by excessive gas in the drainage bag body 1; after the drainage bag body 1 completes collection, the check tube 301 is disassembled and disinfected, so that it is convenient to replace it with a new drainage bag body 1 for reuse. After the drainage bag body 1 completes collection, the drainage sealing tube 4 of the drainage bag body 1 is rotated to the upper end, and the drainage sealing tube 4 is broken through the easy-to-break groove 7 to discharge the liquid inside the drainage bag body 1. The drainage bag body 1 after drainage can be placed in a medical supplies recycling box, which facilitates the collection and use of the drainage bag body 1, avoids patient discomfort caused by gas accumulation, improves patient comfort, reduces medical costs, reduces resource waste, simplifies the medical waste treatment process, and improves work efficiency. Example 2

[0041] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, on the basis of embodiment 1, the exhaust component 6 includes a filter block 604, a circular ring 605 is installed on the filter block 604, the outer peripheral wall of the filter block 604 is plugged into the inner wall of the lower end of the insert 601, the outer peripheral wall of the circular ring 605 is slidably connected to the inner wall of the exhaust pipe 5, the top surface of the circular ring 605 is evenly arranged and fixed with multiple elastic clamps 606, the outer peripheral wall of the lower end of the insert 601 is provided with an annular groove 607, the protrusion of the elastic clamp 606 is clipped into the annular groove 607; the filter block 604 is plugged into the insert 601, and the elastic clamp 606 is clipped into the annular groove 607.

[0042] A placement cavity 608 is provided at the upper end of the cannula 601, and a hollow block 610 is installed on the bottom surface of the placement cavity 608, and a waterproof breathable membrane 611 is embedded on the bottom surface of the hollow block 610; the filtered gas passes through the waterproof breathable membrane 611 and the hollow block 610, enters the placement cavity 608, and is adsorbed and deodorized by adsorption materials such as activated carbon, and is then discharged to the outside through the vent 609, which facilitates the exhaust use of the drainage bag body 1.

[0043] When in use, first install the ring 605 and the filter block 604 through the elastic clamp 606, so that the filter block 604 is plugged into the cannula 601, and the elastic clamp 606 is clamped into the annular groove 607. Then, the adsorption material such as activated carbon is transported to the inside of the placement cavity 608 through the upper end of the cannula 601, and then the cannula 601 is threadedly connected to the connecting round block 602. At this time, the cannula 601 is inserted into the upper end of the exhaust pipe 5 by screwing the cap 603, and the screw cap 603 is rotated to be threadedly connected to the exhaust pipe 5 to complete the installation of the cannula 601. At the same time, the cannula 601 is disassembled by screwing the cap 603. The thread directions of the screw cap 603 and the connecting round block 602 are opposite, which simplifies the operation process, improves work efficiency, and enables medical staff to easily complete the installation and replacement of the exhaust assembly 6;

[0044] When there is too much gas in the drainage bag body 1, the gas enters the lower end of the cannula 601 through the exhaust pipe 5, and the gas is filtered by the filter block 604. After the filtered gas passes through the waterproof breathable membrane 611 and the hollow block 610, it enters the placement cavity 608 and is adsorbed and deodorized by an adsorption material such as activated carbon, and then discharged to the outside through the vent 609, which facilitates the exhaust of the drainage bag body 1. The filter block 604 effectively removes impurities and particles in the gas, and the adsorption and deodorization effect of the adsorption material such as activated carbon further purifies the gas, ensuring the purity and harmlessness of the discharged gas.

[0045] When the drainage bag body 1 has completed collection and needs to be replaced with a new drainage bag body 1, the cannula 601 is disassembled and disinfected, and the corresponding filter block 604, activated carbon and other adsorption materials are replaced according to the usage before being reused. This reduces the cost of using the drainage bag body 1, reduces the waste of medical resources and the consumption of disposable medical supplies, reduces the amount of medical waste generated, and helps promote environmental protection.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drainage bag structure with anti-backflow and ventilating function, comprising a drainage bag body (1), characterized in that: The top surface of the drainage bag body (1) is connected to a liquid inlet pipe (2), a non-return assembly (3) is plugged into the liquid inlet pipe (2), and a non-return pipe (301) is provided on the non-return assembly (3). The bottom surface of the drainage bag body (1) is connected to a liquid discharge sealing pipe (4), and one end of the bottom surface of the drainage bag body (1) is connected to an exhaust pipe (5), an exhaust assembly (6) is plugged into the upper end of the exhaust pipe (5), and an intubation pipe (601) is provided on the exhaust assembly (6). The outer peripheral wall of the insert tube (601) is slidably connected to the inner wall of the exhaust pipe (5); the upper end of the insert tube (601) is threadedly connected to a connecting round block (602) via an internal thread; a screw cap (603) is fixedly provided on the top surface of the connecting round block (602); the inner wall of the screw cap (603) is threadedly connected to the outer peripheral wall of the upper end of the exhaust pipe (5) via an internal thread; and a plurality of vent holes (609) are respectively provided on the connecting round block (602) and the screw cap (603).

2. The anti-backflow and ventilated drainage bag structure according to claim 1, characterized in that: Two easy-to-break grooves (7) are provided on the outer peripheral wall of the liquid discharge sealing tube (4).

3. The anti-backflow and ventilated drainage bag structure according to claim 1, characterized in that: The anti-return assembly (3) comprises a clamping tube (302), two clamping tubes (302) are symmetrically arranged, the two clamping tubes (302) are respectively fixedly connected to the anti-return tube (301), two anti-slip rings (303) are sleeved on the outer peripheral wall of the clamping tube (302), and the clamping tube (302) and the anti-slip ring (303) at the lower end are respectively plugged into and matched with the liquid inlet pipe (2).

4. The anti-backflow and ventilated drainage bag structure according to claim 1, characterized in that: A guide block (304) is fixedly provided on the middle side wall of the anti-return pipe (301); a rotating shaft (305) is rotatably connected to the guide block (304); a anti-return plate (306) is fixedly provided on the rotating shaft (305); a baffle (307) is abutted at the top edge of the anti-return plate (306); and the baffle (307) is fixedly provided on the inner wall of the anti-return pipe (301).

5. The anti-backflow and ventilated drainage bag structure according to claim 4, characterized in that: A tension spring (308) is mounted on the top surface of the anti-return plate (306) via a mounting seat. The tension spring (308) is fixedly connected to the inner wall of the anti-return tube (301). A limit block (309) is fixedly mounted on the bottom surface of the guide block (304). The side wall of the limit block (309) is inclined.

6. The anti-backflow and ventilated drainage bag structure according to claim 1, characterized in that: The exhaust assembly (6) comprises a filter block (604), a circular ring (605) is mounted on the filter block (604), the outer peripheral wall of the filter block (604) is plug-fitted with the inner wall of the lower end of the insert tube (601), and the outer peripheral wall of the circular ring (605) is slidably connected with the inner wall of the exhaust pipe (5).

7. The anti-backflow and ventilated drainage bag structure according to claim 6, characterized in that: The top surface of the circular ring (605) is fixed with a plurality of elastic clamps (606) in a uniformly arranged structure, and an annular groove (607) is provided on the outer peripheral wall of the lower end of the insertion tube (601), and the protrusion of the elastic clamp (606) is engaged with the annular groove (607).

8. The anti-backflow and ventilated drainage bag structure according to claim 7, characterized in that: The upper end of the cannula (601) is provided with a placement cavity (608), the bottom surface of the placement cavity (608) is provided with a hollow block (610), and the bottom surface of the hollow block (610) is embedded with a waterproof breathable membrane (611).

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