A drainage device for use in the care of a gastrointestinal tumor

Abstract

This invention belongs to the field of medical drainage technology, specifically a drainage device for the care of gastrointestinal tumors. It includes a valve assembly, a valve adjustment assembly, an automatic cleaning assembly, a frame assembly, a liquid storage assembly, and a gas filtration assembly. The valve assembly is mounted on the frame assembly, and the valve adjustment assembly and the automatic cleaning assembly are located within the valve assembly. This invention cleverly utilizes changes in negative pressure within the valve body to trigger a cleaning action. When deposits on the inner wall obstruct the airflow, the reduced air pressure automatically overcomes the spring force, causing the piston to slide. This, in conjunction with a scraper ring, mechanically scrapes away the blockage from the inner wall of the valve body and pushes the obstruction into an independent storage bottle. This process achieves in-situ unblocking without disassembling the tubing, effectively preventing drainage interruption and significantly reducing the probability of cross-infection.

Description

Technical Field

[0001] This invention belongs to the field of medical drainage technology, specifically referring to a drainage device for the care of digestive tract tumors. Background Technology

[0002] Patients with gastrointestinal tumors often require drainage tubes after surgery or during conservative treatment to drain ascites, exudate, and necrotic tissue. Existing medical drainage devices mostly rely on continuous suction from an external negative pressure source, but they have the following significant drawbacks in practical clinical application: First, the drainage fluid has a high viscosity and is prone to mixing with tissue debris or blood clots, which can easily adhere to the valve body and the inner wall of the tubing, causing blockage and resulting in a sharp drop in drainage efficiency. Second, traditional devices lack an in-situ cleaning mechanism. Once a blockage occurs, the machine usually needs to be stopped and the tubing disassembled for manual unblocking, which is not only cumbersome and increases the burden on medical staff, but also significantly increases the risk of iatrogenic cross-infection. Secondly, the existing device has insufficient gas-liquid separation and gas filtration performance. If the bacteria-laden humid gas is directly introduced into the negative pressure pump without sufficient disinfection, it will easily cause corrosion and damage to the pump body, and there is also a risk of bacterial aerosol leakage. Finally, the device lacks a reliable mechanical sealing structure when not in drainage or transport mode, making it susceptible to backflow of fluid due to residual negative pressure or misconnection of tubing, which could affect patient safety. Therefore, there is an urgent need for a drainage device for gastrointestinal tumor care that features automatic anti-clogging and clearing, efficient gas-liquid separation, and manually controllable sealing. Summary of the Invention

[0003] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a drainage device for the care of gastrointestinal tumors. This device cleverly utilizes changes in negative pressure within the valve body to trigger a cleaning action. When deposits on the inner wall obstruct the airflow, the reduced air pressure automatically overcomes the spring force, causing the piston to slide. This, in conjunction with a scraping ring, mechanically scrapes away the blockage from the inner wall of the valve body and pushes the obstruction into an independent storage bottle. This process achieves in-situ unblocking without disassembling the tubing, effectively preventing drainage interruptions and significantly reducing the probability of cross-infection.

[0004] Furthermore, the tension spring ensures that the piston automatically resets after unblocking, restoring normal drainage. The threaded fit between the adjusting screw and the end seat allows medical staff to manually and precisely adjust the position of the plunger to control the piston stroke, or completely block the valve body passage. In non-drainage, fluid change, or emergency situations, it effectively prevents fluid backflow and misoperation, improving clinical safety.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a drainage device for the nursing of digestive tract tumors, including a valve assembly, a valve adjustment assembly, an automatic cleaning assembly, a frame assembly, a liquid storage assembly and a gas filtration assembly. The valve assembly is disposed on the frame assembly, and the valve adjustment assembly and the automatic cleaning assembly are disposed in the valve assembly. The liquid storage assembly and the gas filtration assembly are both fixed to the side of the frame assembly. The valve assembly includes a valve body, on which a liquid inlet connector and a liquid outlet connector are provided.

[0006] Furthermore, the valve regulating assembly also includes a piston and a valve seat, the piston being engaged and slidably disposed in the valve body, the valve seat being disposed on the frame assembly, and the valve body being fixedly connected to the valve seat.

[0007] Preferably, the valve regulating assembly includes an end seat and a tension spring, the end seat being fixed to one end of the valve body, and the tension spring being disposed between the end seat and the piston.

[0008] When the valve body is blocked, the drainage channel becomes obstructed, which reduces the air pressure inside the valve body. This causes the piston to slide against the elastic force of the tension spring. During this process, the sliding of the scraper ring can scrape off the blockage and push it into the storage bottle.

[0009] After the blockage is cleared, the air passage becomes smooth, and the air pressure in the valve body is restored; the piston will also return to its original position under the tension of the tension spring.

[0010] Preferably, the valve regulating assembly further includes an regulating screw, which is threadedly driven to the end seat. One end of the regulating screw is provided with a top that abuts against the piston, and the other end of the regulating screw is provided with a handle.

[0011] The position of the top head can be adjusted by adjusting the screw, thereby adjusting the position of the piston while the piston is under the tension of the tension spring, and thus controlling the opening and closing of the valve body.

[0012] Furthermore, the automatic cleaning assembly includes a scraper ring, a connecting rod, and a storage bottle. The scraper ring is slidably engaged within the valve body. The two ends of the connecting rod are respectively fixed to the scraper ring and the piston. The storage bottle is located at the other end of the valve body.

[0013] As the scraper ring moves along with the piston, it can scrape the inner wall of the valve body, thereby cleaning the deposits on the inner wall and pushing them into the storage bottle.

[0014] Furthermore, the frame assembly includes a column and casters, the valve seat is fixed to the top of the column, the bottom of the column is provided with legs evenly distributed in a ring, and the casters are located below the legs.

[0015] Furthermore, the liquid storage assembly includes a liquid storage bottle, a liquid outlet pipe, and a negative pressure pipe. The liquid storage bottle is located on the side of the column, the liquid outlet pipe is located between the liquid outlet connector and the liquid storage bottle, and one end of the negative pressure pipe is located on the liquid storage bottle.

[0016] Furthermore, the gas filtration assembly includes a filter bottle, a vacuum pump, and a vacuum connecting pipe. The filter bottle and the vacuum pump are located on the side of the column, the other end of the negative pressure pipe is located in the filter bottle, and the vacuum connecting pipe is located between the filter bottle and the vacuum pump.

[0017] Preferably, the negative pressure tube is located below the liquid surface in the filter bottle, and the vacuum pump is located above the liquid surface in the filter bottle.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows: (1) When the inside of the valve body is blocked, the drainage channel is obstructed, which will reduce the air pressure inside the valve body, thereby driving the piston to slide against the elastic force of the tension spring. During this process, the blockage can be scraped off and pushed into the storage bottle by the sliding of the scraper ring.

[0019] (2) After the blockage is cleared, the air passage becomes smooth and the air pressure in the valve body is restored; the piston will also reset under the tension of the tension spring.

[0020] (3) The position of the top head can be adjusted by adjusting the screw, so that the position of the piston can be adjusted while the piston is subjected to the tension of the tension spring, thereby realizing the opening and closing control of the valve body.

[0021] (4) As the scraper ring moves with the piston, it can scrape the inner wall of the valve body, thereby cleaning the deposits on the inner wall and pushing them into the storage bottle. Attached Figure Description

[0022] Figure 1 This is a perspective view of a drainage device for the care of digestive tract tumors proposed in this invention; Figure 2 This is a front view of a drainage device for the care of digestive tract tumors proposed in this invention; Figure 3 This is a left view of a drainage device for the care of digestive tract tumors proposed in this invention; Figure 4 This is a top view of a drainage device for the care of digestive tract tumors proposed in this invention; Figure 5 for Figure 3 A cross-sectional view along section line AA; Figure 6 for Figure 2 A cross-sectional view along the cutting line BB; Figure 7 for Figure 3 A cross-sectional view along the section line CC; Figure 8 This is an exploded structural diagram of a drainage device for the care of digestive tract tumors proposed in this invention; Figure 9for Figure 6 A magnified view of a section at point I; Figure 10 for Figure 7 Enlarged view of a section at point II; Figure 11 for Figure 8 A magnified view of a section at point III.

[0023] The components include: 1. Valve assembly; 2. Valve adjustment assembly; 3. Automatic cleaning assembly; 4. Frame assembly; 5. Liquid storage assembly; 6. Gas filtration assembly; 11. Valve body; 12. Piston; 13. Valve seat; 21. End seat; 22. Tension spring; 23. Adjusting screw; 31. Scraper ring; 32. Connecting rod; 33. Storage bottle; 41. Column; 42. Casters; 51. Liquid storage bottle; 52. Liquid outlet pipe; 53. Negative pressure pipe; 61. Filter bottle; 62. Vacuum pump; 63. Vacuum connection pipe; 111. Liquid inlet connector; 112. Liquid outlet connector; 231. Top head; 232. Handle; 411. Support leg.

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figures 1-11 As shown, the present invention proposes a drainage device for the care of gastrointestinal tumors, including a valve assembly 1, a valve adjustment assembly 2, an automatic cleaning assembly 3, a frame assembly 4, a liquid storage assembly 5, and a gas filtration assembly 6. The valve assembly 1 is disposed on the frame assembly 4, and the valve adjustment assembly 2 and the automatic cleaning assembly 3 are disposed in the valve assembly 1. The liquid storage assembly 5 and the gas filter assembly 6 are both fixed to the side of the frame assembly 4. The valve assembly 1 includes a valve body 11, on which a liquid inlet connector 111 and a liquid outlet connector 112 are provided.

[0028] The valve regulating assembly 2 also includes a piston 12 and a valve seat 13. The piston 12 is engaged and slidably disposed in the valve body 11, and the valve seat 13 is disposed on the frame assembly 4. The valve body 11 is fixedly connected to the valve seat 13.

[0029] The valve regulating assembly 2 includes an end seat 21 and a tension spring 22. The end seat 21 is fixed to one end of the valve body 11, and the tension spring 22 is located between the end seat 21 and the piston 12.

[0030] When the inside of the valve body 11 is blocked, the drainage channel is obstructed, which will reduce the air pressure inside the valve body 11. This will cause the piston 12 to slide against the elastic force of the tension spring 22. During this process, the blockage can be scraped off and pushed into the storage bottle 33 by the sliding of the scraper ring 31.

[0031] After the blockage is cleared, the air passage becomes smooth, and the air pressure in the valve body 11 is restored; the piston 12 will also reset under the tension of the tension spring 22.

[0032] The valve regulating assembly 2 also includes an regulating screw 23, which is threadedly driven to the end seat 21. One end of the regulating screw 23 is provided with a top head 231 that abuts against the piston 12, and the other end of the regulating screw 23 is provided with a handle 232.

[0033] The position of the top head 231 can be adjusted by adjusting the screw 23, thereby adjusting the position of the piston 12 while the piston 12 is pulled by the tension spring 22, and thus controlling the opening and closing of the valve body 11.

[0034] The automatic cleaning component 3 includes a scraper ring 31, a connecting rod 32, and a storage bottle 33. The scraper ring 31 is engaged and slidably disposed in the valve body 11. The two ends of the connecting rod 32 are respectively fixed to the scraper ring 31 and the piston 12. The storage bottle 33 is disposed at the other end of the valve body 11.

[0035] As the scraper ring 31 moves along with the piston 12, it can scrape the inner wall of the valve body 11, thereby cleaning the deposits on the inner wall and pushing them into the storage bottle 33.

[0036] The frame assembly 4 includes a column 41 and casters 42. The valve seat 13 is fixed to the top of the column 41. The bottom of the column 41 is provided with legs 411 evenly distributed in a ring. The casters 42 are located below the legs 411.

[0037] The liquid storage assembly 5 includes a liquid storage bottle 51, a liquid outlet pipe 52, and a negative pressure pipe 53. The liquid storage bottle 51 is located on the side of the column 41, the liquid outlet pipe 52 is located between the liquid outlet connector 112 and the liquid storage bottle 51, and one end of the negative pressure pipe 53 is located on the liquid storage bottle 51.

[0038] The gas filtration assembly 6 includes a filter bottle 61, a vacuum pump 62, and a vacuum connection pipe 63. The filter bottle 61 and the vacuum pump 62 are located on the side of the column 41. The other end of the negative pressure pipe 53 is located in the filter bottle 61, and the vacuum connection pipe 63 is located between the filter bottle 61 and the vacuum pump 62.

[0039] The negative pressure tube 53 is located below the liquid surface in the filter bottle 61, and the vacuum pump 62 is located above the liquid surface in the filter bottle 61.

[0040] In practical use, the operator first needs to start the vacuum pump 62 to reduce the air pressure in the vacuum connection tube 63 by extracting air, thereby opening the entire gas flow channel. The air at the end of the drainage tube carries the liquid to be extracted through the drainage tube into the liquid inlet connector 111, and then through the liquid outlet connector 112 and the liquid outlet tube 52 into the liquid storage bottle 51. The drained liquid will be stored in the liquid storage bottle 51; the gas will continue to flow and enter the filter bottle 61 through the negative pressure tube 53. Since the end of the negative pressure tube 53 is below the liquid surface in the filter bottle 61, impurities and bacteria in the gas will be eliminated and dissolved by the liquid, and finally the gas will be drawn to the outside by the vacuum pump 62.

[0041] When the valve body 11 is blocked to a certain extent, the gas flow is obstructed, and the gas pressure in the valve body 11 will be further reduced, thereby overcoming the elastic force of the tension spring 22 and causing the piston 12 to slide and leave the top head 231. When the piston 12 slides, it drives the scraper ring 31 to slide through the connecting rod 32, thereby scraping off the deposits on the inner wall of the valve body 11 and pushing them into the storage bottle 33.

[0042] Once the blockage is cleared, the gas flow in the valve body 11 becomes smooth, and the gas pressure inside the valve body 11 is restored. At this time, the piston 12 will be reset with the scraper ring 31 under the elastic force of the tension spring 22.

[0043] When not in the drainage state, simply rotate the handle 232. Through the threaded transmission between the adjusting screw 23 and the end seat 21, the adjusting screw 23 moves toward the valve body 11. The top head 231 will press against the piston 12 and slide it against the elastic force of the tension spring 22 between the liquid inlet connector 111 and the liquid outlet connector 112. At this time, even if the vacuum pump 62 is turned on, the gas cannot flow, thus avoiding the danger caused by accidental suction.

[0044] As another embodiment of the present invention, a mesh plate may be provided at the end of the negative pressure pipe 53 to reduce the size of the bubbles discharged from the negative pressure pipe 53, thereby achieving more complete dissolution of impurities and disinfection of pathogens.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A drainage device for use in the care of a digestive tract tumor, characterized in that: It includes a valve assembly (1), a valve regulating assembly (2), an automatic cleaning assembly (3), a frame assembly (4), a liquid storage assembly (5), and a gas filtration assembly (6). The valve assembly (1) is mounted on the frame assembly (4), and the valve regulating assembly (2) and the automatic cleaning assembly (3) are located in the valve assembly (1). The liquid storage assembly (5) and the gas filtration assembly (6) are both fixed to the side of the frame assembly (4). The valve assembly (1) includes a valve body (11), and the valve body (11) is provided with an inlet connector (111) and an outlet connector (112).

2. A drainage device for use in the care of a digestive tract tumour according to claim 1, characterised in that: The valve regulating assembly (2) further includes a piston (12) and a valve seat (13). The piston (12) is engaged and slidably disposed in the valve body (11). The valve seat (13) is disposed on the frame assembly (4). The valve body (11) is fixedly connected to the valve seat (13).

3. A drainage device for use in the care of a digestive tract tumour according to claim 2, characterised in that: The valve regulating assembly (2) includes an end seat (21) and a tension spring (22). The end seat (21) is fixed to one end of the valve body (11), and the tension spring (22) is located between the end seat (21) and the piston (12).

4. A drainage device for use in the care of a digestive tract tumour according to claim 3, characterised in that: The valve regulating assembly (2) further includes an regulating screw (23), which is threadedly driven with the end seat (21). One end of the regulating screw (23) is provided with a top head (231) that abuts against the piston (12), and the other end of the regulating screw (23) is provided with a handle (232).

5. A drainage device for use in the care of a digestive tract tumour according to claim 4, characterised in that: The automatic cleaning assembly (3) includes a scraper ring (31), a connecting rod (32), and a storage bottle (33). The scraper ring (31) is engaged and slidably disposed in the valve body (11). The two ends of the connecting rod (32) are respectively fixed to the scraper ring (31) and the piston (12). The storage bottle (33) is disposed at the other end of the valve body (11).

6. A drainage device for use in the care of a digestive tract tumour according to claim 5, characterised in that: The frame assembly (4) includes a column (41) and casters (42). The valve seat (13) is fixed to the top of the column (41). The bottom of the column (41) is evenly distributed with legs (411) in a ring. The casters (42) are located below the legs (411).

7. A drainage device for use in the care of a digestive tract tumour according to claim 6, characterised in that: The liquid storage assembly (5) includes a liquid storage bottle (51), a liquid outlet pipe (52), and a negative pressure pipe (53). The liquid storage bottle (51) is located on the side of the column (41), the liquid outlet pipe (52) is located between the liquid outlet connector (112) and the liquid storage bottle (51), and one end of the negative pressure pipe (53) is located on the liquid storage bottle (51).

8. A drainage device for use in the care of a digestive tract tumour according to claim 7, characterised in that: The gas filtration assembly (6) includes a filter bottle (61), a vacuum pump (62) and a vacuum connecting pipe (63). The filter bottle (61) and the vacuum pump (62) are located on the side of the column (41). The other end of the negative pressure pipe (53) is located in the filter bottle (61). The vacuum connecting pipe (63) is located between the filter bottle (61) and the vacuum pump (62).

9. A drainage device for use in the care of a digestive tract tumour according to claim 8, characterised in that: The negative pressure tube (53) is located below the liquid surface in the filter bottle (61), and the vacuum pump (62) is located above the liquid surface in the filter bottle (61).

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