Hydrops drainage device for tumor nursing

The dynamic multi-stage filtration rotary adjustment disk and three-layer structure design solves the problem of easy clogging of the filter screen of the tumor care effusion drainage device, achieves continuous drainage and negative pressure stability, and reduces the risk of infection and the difficulty of disassembly.

CN120789370AInactive Publication Date: 2025-10-17AFFILIATED HOSPITAL OF JIANGNAN UNIV
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Patent Information

Application Number
CN202511077778.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-10-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing tumor care fluid drainage devices are easily clogged by protein flocs, requiring frequent drainage interruptions to replace filters, increasing the risk of infection. In addition, multiple components need to be disassembled when replacing filters or cleaning pipelines, affecting negative pressure stability.

Method used

It adopts a dynamic multi-stage filtration rotary adjustment disk. By turning the adjustment disk, you can switch between filters with different pore sizes to adapt to high-viscosity and low-viscosity fluids, reduce clogging problems, and quickly switch to another filter after clogging to achieve continuous use; the three-layer structure of the top plate, adjustment disk and bottom plate is locked with a single bolt, reducing assembly complexity and facilitating disassembly and cleaning.

Benefits of technology

It effectively reduces filter clogging, enables continuous use of uninterrupted drainage, maintains negative pressure stability, reduces infection risks and disassembly complexity, and facilitates cleaning and disinfection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The effusion drainage device comprises a drainage box, a drainage mechanism is installed at the top of the drainage box, a fixing cylinder is fixedly installed on the front surface of the drainage box through bolts, a pump machine is installed at the lower end of the fixing cylinder, a drainage pipe is installed at the lower end of the side wall of the drainage box, and a negative pressure pump is installed in the drainage box. According to the dynamic multi-stage filtration rotary adjusting disc, the filter screens with different apertures are switched by rotating the adjusting disc, the adjusting disc adapts to high-viscosity / low-viscosity accumulated liquid, the blocking problem is reduced, the adjusting disc can be rapidly switched to another connecting hole with the filter screen after being blocked, continuous use can be achieved, and after the blocked filter screen rotates to a washing position, the filter screen can be continuously washed. And blocking dirt in the filter screen is flushed out in a back flushing manner and is stored by the sewage cylinder. The three-layer structure of the top plate, the adjusting disc and the bottom plate is locked through a single bolt, so that the assembly complexity is reduced, and disassembly, cleaning and disinfection after use are facilitated.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a hydrops drainage device for tumor care. BACKGROUND

[0002] In clinical care of tumors, malignant hydrops is a common and serious complication, mainly caused by recurrence and metastasis of malignant tumors. According to statistics, as high as 50% of patients with advanced tumors will have abdominal or chest hydrops, which not only leads to deterioration of the patient's condition, but also seriously affects the quality of life. The root causes of hydrops formation include excessive secretion of tumor cells, backflow obstruction caused by lymphatic obstruction, and pathological changes such as increased vascular permeability. The most common primary tumor types of malignant hydrops include ovarian cancer (accounting for 52.3%), cervical cancer (24.6%), breast cancer liver metastasis (15.4%), and other abdominal metastatic carcinomas.

[0003] The existing hydrops drainage device for tumor care is mostly blocked by protein floc with single-layer filter screen, and needs to be frequently interrupted for drainage and filter screen replacement, which increases the risk of infection. When replacing the filter screen or cleaning the pipeline, many components need to be disassembled, which affects the stability of the negative pressure. Therefore, a hydrops drainage device for tumor care is proposed. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present application provides a hydrops drainage device for tumor care, which solves the problems of the existing hydrops drainage device for tumor care, which is mostly blocked by protein floc with single-layer filter screen, and needs to be frequently interrupted for drainage and filter screen replacement, which increases the risk of infection. When replacing the filter screen or cleaning the pipeline, many components need to be disassembled, which affects the stability of the negative pressure.

[0006] (II) Technical solutions

[0007] In order to achieve the above purpose, the present application is realized by the following technical solutions: a hydrops drainage device for tumor care, comprising a drainage box, a drainage mechanism is installed on the top of the drainage box, a fixed cylinder is fixedly installed on the front surface of the drainage box by bolts, a pump is installed at the lower end of the fixed cylinder, a drainage pipe is installed at the lower end of the side wall of the drainage box, and a negative pressure pump is installed inside the drainage box. The drainage mechanism comprises a top plate, an adjusting disc, a bottom plate and a bolt, the adjusting disc is rotationally connected between the top plate and the bottom plate, a plurality of connecting holes in annular distribution are formed in the surface of the adjusting disc, a filter screen is mounted in the connecting hole, a through hole is symmetrically formed in the surface of the top plate and the bottom plate and is located on the rotation path of the connecting hole, one end of the through hole in the surface of the bottom plate is connected with a negative pressure pump, the other end of the through hole is provided with a catheter, the end of the catheter is connected with a pump, a backwater pipe and a drainage pipe are respectively mounted on the through hole in the surface of the top plate. The inner part of the fixing cylinder is embedded with a clean water cylinder and a sewage cylinder, the sewage cylinder is embedded in the upper end of the clean water cylinder, and the upper end of the sewage cylinder is connected with the end of the backwater pipe.

[0008] As a further preferred mode of the present application, the top surface and the bottom surface of the adjusting disc are respectively provided with a movable groove, a positioning pin and a spring are movably mounted in the movable groove, one end of the spring is connected with the inner wall of the movable groove, the other end of the spring is connected with one end of the positioning pin, the other end of the positioning pin extends out of the movable groove, and a plurality of positioning grooves in annular equidistant distribution are uniformly formed in the surface of the top plate and the bottom plate.

[0009] As a further preferred mode of the present application, the bolt penetrates the top plate and the adjusting disc and is threadedly connected with the bottom plate, four equidistantly distributed push plates are fixedly mounted on the outer wall of the adjusting disc.

[0010] As a further preferred mode of the present application, the end of the backwater pipe is connected with a flexible hose, the end of the flexible hose is fixedly connected with a cannula, and a plurality of rubber anti-falling rings are arranged on the surface of the cannula.

[0011] As a further preferred mode of the present application, the backwater pipe is communicated with the catheter through the through hole and the connecting hole, and the drainage pipe is communicated with the negative pressure pump through the through hole and the connecting hole.

[0012] As a further preferred mode of the present application, the top part of the sewage cylinder and the clean water cylinder is threadedly provided with a cover plate, a joint is mounted on the top surface of the cover plate, the joint of the sewage cylinder is embeddedly connected with the cannula, and an embedding groove is formed in the bottom part of the sewage cylinder.

[0013] As a further preferred mode of the present application, a limiting groove is symmetrically formed in the outer wall of the fixing cylinder, and a handle is mounted on the outer wall of the sewage cylinder and the clean water cylinder and is embedded into the limiting groove.

[0014] As a further preferred mode of the present application, a one-way valve is mounted on the bottom part of the clean water cylinder, and a connecting pipe is mounted on the inner bottom part of the fixing cylinder and the end of the connecting pipe is connected with the pump.

[0015] (Three) beneficial effects

[0016] The application provides an effusion drainage device for tumor care. The dynamic multi-stage filtering rotary adjusting disc of the application can switch different aperture filtering screens by rotating the adjusting disc, adapt to high viscous / low viscous effusion, reduce the problem of blockage, and quickly switch to another connecting hole with a filtering screen after blockage, so that the device can be continuously used. After the blocked filtering screen is rotated to a flushing position, the blocked dirt in the filtering screen is flushed out by back flushing and stored by the sewage cylinder. The three-layer structure of the top plate, the adjusting disc and the bottom plate is locked by a single bolt, which reduces the assembly complexity and facilitates disassembly and cleaning after use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The application provides an effusion drainage device for tumor care. Figure 2 The application provides an effusion drainage device for tumor care. Figure 3 The application provides an effusion drainage device for tumor care. Figure 4 The application provides an effusion drainage device for tumor care. Figure 5 The application provides an effusion drainage device for tumor care.

[0018] In the figure: 1, drainage box; 2, drainage pipe; 3, catheter; 4, pump; 5, fixed cylinder; 6, drainage mechanism; 7, cannula; 8, flexible hose; 9, backwater pipe; 10, push plate; 11, bolt; 12, drainage tube; 13, top plate; 14, adjusting disc; 15, bottom plate; 16, connecting hole; 17, filtering screen; 18, movable groove; 19, spring; 20, positioning pin; 21, positioning groove; 22, sewage cylinder; 23, joint; 24, cover plate; 25, handle; 26, limiting groove; 27, water purification cylinder; 28, one-way valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0020] Please refer to Figures 1-5, an embodiment of the present invention provides a technical solution: a fluid drainage device for tumor care, comprising a drainage box 1, a drainage mechanism 6 is installed on the top of the drainage box 1, a fixed cylinder 5 is fixedly installed on the front surface of the drainage box 1 by bolts 11, a pump 4 is installed at the lower end of the fixed cylinder 5, a drain pipe 2 is installed at the lower end of the side wall of the drainage box 1, and a negative pressure pump is installed inside the drainage box 1; the drainage mechanism 6 comprises a top plate 13, an adjusting disk 14, a bottom plate 15 and bolts 11, the adjusting disk 14 is rotatably connected between the top plate 13 and the bottom plate 15, a plurality of connecting holes 16 distributed in an annular shape are opened on the surface of the adjusting disk 14, a filter screen 17 is installed inside the connecting hole 16, and through holes are symmetrically opened on the surfaces of the top plate 13 and the bottom plate 15 and the through holes are located at the connecting hole 1 6, one end of the through hole on the surface of the bottom plate 15 is connected to the negative pressure pump, and the other end of the through hole is installed with a conduit 3, the end of the conduit 3 is connected to the pump 4, and the through holes on the surface of the top plate 13 are respectively installed with a return pipe 9 and a drainage pipe 12. The regulating disk 14 has a plurality of connection holes 16 with filters distributed in a ring. When the working filter is blocked, it is rotated to switch to the spare filter to achieve non-stop replacement and avoid repeated disassembly and interruption of drainage; the through holes of the top plate 13 / bottom plate 15 are aligned with the rotation path of the connection hole 16 to ensure that the pipeline is automatically connected after any switching to maintain the stability of the negative pressure; the interior of the fixed cylinder 5 is inlaid with a clean water cylinder 27 and a sewage cylinder 22, and the sewage cylinder 22 is embedded in the upper end of the clean water cylinder 27, and the upper end of the sewage cylinder 22 is connected to the end of the return pipe 9.

[0021] As a further improvement, the top and bottom surfaces of the adjusting disk 14 are respectively provided with movable grooves 18, and the interior of the movable groove 18 is movably installed with a positioning pin 20 and a spring 19, one end of the spring 19 is connected to the inner wall of the movable groove 18, and the other end is connected to one end of the positioning pin 20, and the other end of the positioning pin 20 extends to the outside of the movable groove 18, and the surfaces of the top plate 13 and the bottom plate 15 are evenly provided with a number of positioning grooves 21 distributed in an annular shape and at equal distances. The positioning pin 20 and the positioning groove 21 are used in conjunction with each other, and the spring 19 pushes the positioning pin 20 to be stuck into the positioning groove 21 of the top plate 13 / bottom plate 15, so that the next group of connecting holes 16 with the cleaning filter are precisely aligned with the through hole, so as to realize uninterrupted drainage and switching of the filter unit.

[0022] As a further improvement, the bolt 11 passes through the top plate 13 and the adjusting disk 14 and is threadedly connected to the bottom plate 15. Four equally spaced push plates 10 are fixedly mounted on the outer wall of the adjusting disk 14, and the adjusting disk 14 is driven to rotate by pushing the push plates 10.

[0023] As a further improvement, the end of the return pipe 9 is connected to a telescopic hose 8, and the end of the telescopic hose 8 is fixedly connected to a cannula 7. The surface of the cannula 7 is provided with several rubber anti-slip rings to improve the connection stability between the cannula 7 and the joint 23.

[0024] Further improved, the backwater pipe 9 is communicated with the catheter 3 through the through hole and the connecting hole 16, and the drainage pipe 12 is communicated with the negative pressure pump through the through hole and the connecting hole 16, and the negative pressure pump generates negative pressure to guide the liquid into the drainage pipe 12.

[0025] Further improved, the top of the sewage cylinder 22 and the clean water cylinder 27 is threadedly installed with a cover plate 24, the top surface of the cover plate 24 is installed with a connector 23, the connector 23 of the sewage cylinder 22 is inlayed and connected with the cannula 7, the bottom of the sewage cylinder 22 is provided with an inlaying groove, and the sewage cylinder 22 and the clean water cylinder 27 can be stacked by inlaying.

[0026] Further improved, the outer wall of the fixed cylinder 5 is symmetrically provided with a limiting groove 26, the outer wall of the sewage cylinder 22 and the clean water cylinder 27 is installed with a handle 25 and the handle 25 is embedded into the limiting groove 26, and the clean water cylinder 27 and the sewage cylinder 22 are conveniently taken out after the handle 25 is pulled up.

[0027] Further improved, the bottom of the clean water cylinder 27 is installed with a one-way valve 28, the inner bottom of the fixed cylinder 5 is installed with a connecting pipe and the end of the connecting pipe is connected with the pump 4, after the upper end of the connecting pipe is embedded into the one-way valve 28, the pump 4 is started to pump out the clean water in the clean water cylinder 27 and spray out from the upper end of the catheter 3 to flush the filter screen 17.

[0028] Working principle: the negative pressure pump is started to form negative pressure in the drainage pipe 12, the accumulated liquid in the patient is pumped into the drainage box 1 for temporary storage through the drainage pipe 12, the through hole of the top plate 13, the connecting hole 16 of the adjusting disc 14 and the through hole of the bottom plate 15; the accumulated liquid passes through the filter screen 17, the large-particle impurities are intercepted on the surface of the filter screen, and the preliminary filtered liquid enters the box body. When the filter screen is blocked to cause the negative pressure to drop, the adjusting disc 14 pushes the plate 10 to rotate around the screw 11, the spring 19 pushes the positioning pin 20 to be clamped into the positioning groove 21 of the top plate 13 / bottom plate 15, the next set of connecting holes 16 with clean filter screens are accurately aligned with the through holes to realize uninterrupted drainage switching of the filter units; the top plate 13-adjusting disc 14-bottom plate 15 are pressed tightly through the screw 11 to prevent negative pressure leakage during rotation. The pump 4 pumps the liquid in the clean water cylinder 27 into the catheter 3, and then flushes into the connecting hole 16 to flush the blocked filter screen 17, and the flushed liquid is guided into the sewage cylinder 22 for storage through the backwater pipe 9.

[0029] 1, drainage box; 2, drainage pipe; 3, catheter; 4, pump; 5, fixed cylinder; 6, drainage mechanism; 7, cannula; 8, flexible hose; 9, backwater pipe; 10, push plate; 11, bolt; 12, drainage tube; 13, top plate; 14, adjusting disc; 15, bottom plate; 16, connecting hole; 17, filter screen; 18, movable groove; 19, spring; 20, positioning pin; 21, positioning groove; 22, sewage cylinder; 23, joint; 24, cover plate; 25, handle; 26, limiting groove; 27, clean water cylinder; 28, one-way valve, the components are all general standard components or components known to those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through technical manuals or through conventional experimental methods, the problem solved by the present application is that the existing tumor nursing effusion drainage device mostly adopts a single layer filter screen which is easy to be blocked by protein flocculation, and the filter screen needs to be frequently replaced, increasing the risk of infection, and when the filter screen or the pipeline is replaced, many components need to be disassembled, affecting the stability of the negative pressure, through the mutual combination of the above components, the dynamic multi-stage filter rotating adjusting disc 14 of the present application, by rotating the adjusting disc 14 to switch different aperture filter screens 17, adapts to high viscous / low viscous effusion, reduces the problem of blockage, and after blockage, the filter screen 17 can be quickly switched to another connecting hole 16 with a filter screen 17, and can be continuously used, after the blocked filter screen 17 is rotated to the flushing position, the blocked dirt in the filter screen 17 is flushed out by backflushing and stored by the sewage cylinder 22. The three-layer structure of the top plate 13, the adjusting disc 14 and the bottom plate 15 is locked by a single bolt 11, reducing the assembly complexity and facilitating disassembly, cleaning and disinfection after use. The above shows and describes the basic principles and main features of the present application and the advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A fluid drainage device for tumor care, comprising a drainage box (1), characterized in that: A drainage mechanism (6) is installed on the top of the drainage box (1), a fixed cylinder (5) is fixedly installed on the front surface of the drainage box (1) by means of bolts (11), a pump (4) is installed at the lower end of the fixed cylinder (5), a drainage pipe (2) is installed at the lower end of the side wall of the drainage box (1), and a negative pressure pump is installed inside the drainage box (1); The drainage mechanism (6) includes a top plate (13), an adjusting disk (14), a bottom plate (15) and a bolt (11), wherein the adjusting disk (14) is rotatably connected between the top plate (13) and the bottom plate (15), and a plurality of connecting holes (16) distributed in an annular pattern are provided on the surface of the adjusting disk (14), and a filter screen (17) is installed inside the connecting hole (16). Through holes are symmetrically provided on the surfaces of the top plate (13) and the bottom plate (15), and the through holes are located on the rotation path of the connecting hole (16). One end of the through hole on the surface of the bottom plate (15) is connected to the negative pressure pump, and a conduit (3) is installed at the end of the other through hole, and the end of the conduit (3) is connected to the pump (4). A return pipe (9) and a drainage pipe (12) are respectively installed on the through holes on the surface of the top plate (13); A clean water cylinder (27) and a sewage cylinder (22) are embedded in the interior of the fixed cylinder (5). The sewage cylinder (22) is embedded in the upper end of the clean water cylinder (27). The upper end of the sewage cylinder (22) is connected to the end of the return pipe (9).

2. The fluid drainage device for tumor care according to claim 1, characterized in that: The top and bottom surfaces of the adjusting disk (14) are respectively provided with movable grooves (18), and a positioning pin (20) and a spring (19) are movably installed inside the movable groove (18). One end of the spring (19) is connected to the inner wall of the movable groove (18), and the other end is connected to one end of the positioning pin (20). The other end of the positioning pin (20) extends outside the movable groove (18). The surfaces of the top plate (13) and the bottom plate (15) are evenly provided with a plurality of positioning grooves (21) distributed in an annular shape and at equal intervals.

3. The fluid drainage device for tumor care according to claim 1, characterized in that: The bolt (11) passes through the top plate (13) and the adjustment disk (14) and is threadedly connected to the bottom plate (15). Four push plates (10) are fixedly mounted on the outer wall of the adjustment disk (14) and are distributed at equal distances.

4. The fluid drainage device for tumor care according to claim 1, characterized in that: The end of the return pipe (9) is connected to a telescopic hose (8), and the end of the telescopic hose (8) is fixedly connected to a plug (7), and the surface of the plug (7) is provided with a plurality of rubber anti-slip rings.

5. The fluid drainage device for tumor care according to claim 1, characterized in that: The return pipe (9) is connected to the conduit (3) through the through hole and the connecting hole (16), and the drainage pipe (12) is connected to the negative pressure pump through the through hole and the connecting hole (16).

6. The fluid drainage device for tumor care according to claim 1, characterized in that: The tops of the sewage barrel (22) and the clean water barrel (27) are both threadedly mounted with cover plates (24), and the top surfaces of the cover plates (24) are both mounted with joints (23). The joints (23) of the sewage barrel (22) are inlaid and connected to the insert pipe (7), and an inlay groove is provided at the bottom of the sewage barrel (22).

7. The fluid drainage device for tumor care according to claim 1, characterized in that: The outer wall of the fixed cylinder (5) is symmetrically provided with limiting grooves (26), and the outer walls of the sewage cylinder (22) and the clean water cylinder (27) are both provided with handles (25), and the handles (25) are embedded in the limiting grooves (26).

8. The fluid drainage device for tumor care according to claim 1, characterized in that: A one-way valve (28) is installed at the bottom of the water purification cylinder (27), and a connecting pipe is installed at the inner bottom of the fixed cylinder (5), and the end of the connecting pipe is connected to the pump (4).