Liver disease ascites aspirator

Abstract

The utility model belongs to the field of ascites aspirators, and particularly relates to a hepatopathy ascites aspirator. The device comprises a liquid storage bottle with an upward bottle opening, the bottle opening of the liquid storage bottle is detachably sleeved with a connecting cover, a liquid suction pipe independently penetrates through the side wall of the connecting cover, an adjuster used for adjusting the flow speed of ascites is installed on the liquid suction pipe, and a puncture needle is installed at the liquid inlet end of the liquid suction pipe. A locking assembly used for locking the liquid suction pipe is arranged between the liquid suction pipe and the connecting cover, an air suction assembly used for sucking air in the liquid storage bottle is arranged at the top of the connecting cover, an insertion rod used for being independently installed in the liquid storage bottle in a penetrating mode is vertically fixed to the air suction assembly, and a clamping groove used for clamping a pipe body at the liquid outlet end of the liquid suction pipe is formed in the insertion rod. An air outlet pipe communicated with the connecting cover is connected to the side wall of the connecting cover, and a valve is installed on the air outlet pipe. Therefore, long-time manual operation is not needed, the workload of medical staff can be reduced, and the medical staff can be more relaxed.

Description

Technical Field

[0001] This utility model belongs to the field of ascites aspiration devices, and in particular relates to an ascites aspiration device for liver disease. Background Technology

[0002] Ascites refers to the accumulation of fluid in the abdominal cavity caused by liver dysfunction and portal hypertension in cirrhosis. The presence of ascites is an important marker of the progression of cirrhosis to the decompensated stage of liver function. Clinical symptoms mainly include abdominal distension, bloating, and mild abdominal pain, and may also include dyspnea, nausea, vomiting, loss of appetite, a feeling of fullness, and lower extremity edema. The formation of ascites is often related to many factors, such as portal hypertension, increased activity of the renin-angiotensin-aldosterone system, hypoalbuminemia, and lymphatic obstruction.

[0003] Therefore, when ascites is detected, it is necessary to drain the ascites promptly during treatment to prevent excessive accumulation of ascites from compressing organs and affecting their function. Currently, most methods involve medical staff using syringes, tubing, and puncture needles to aspirate the fluid. After the syringe is full, the tubing is clamped with hemostatic forceps, the syringe is removed, and the ascites fluid is injected into a waste container. This process is repeated. However, current aspiration methods are manual and require medical staff to pull the syringe. Due to the small capacity of the syringe, multiple aspirations are required, increasing the workload of medical staff and being time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to provide a liver ascites aspiration device that does not require prolonged manual operation and can reduce the workload of medical staff.

[0005] The aforementioned ascites aspiration device for liver disease includes a reservoir bottle with its opening facing upwards. A connecting cap is detachably fitted onto the opening of the reservoir bottle. A suction tube passes independently through the side wall of the connecting cap. A regulator for adjusting the ascites flow rate is installed on the suction tube. A puncture needle is installed on the inlet end of the suction tube. A locking component for locking the suction tube is provided between the suction tube and the connecting cap. An air suction component for drawing air from the reservoir bottle is provided on the top of the connecting cap. A rod for independently inserting into the reservoir bottle is vertically fixed on the air suction component. A groove is provided on the rod for engaging the outlet end of the suction tube. An air outlet pipe is connected to the side wall of the connecting cap and communicates with it. A valve is installed on the air outlet pipe.

[0006] Furthermore, the air intake assembly includes an air intake box with a cover, which is fixed to the top of the connecting cover. An air intake hole is opened at the bottom of the air intake box to connect its interior with the interior of the liquid storage bottle. A piston is installed inside the air intake box, and a moving rod is vertically fixed to the top of the piston. A through hole is opened on the cover for the moving rod to pass through independently. A top plate is detachably fixed to the top of the moving rod, and a spring is fitted on the moving rod. The spring is located between the top plate and the cover.

[0007] Furthermore, the top of the top plate is provided with anti-slip texture to increase friction with the skin.

[0008] Furthermore, the locking component includes a positioning tube, which is horizontally fixed on the side wall of the connecting cover. A through hole is provided on the side wall of the connecting cover corresponding to the positioning tube for the suction tube to pass through independently. A connecting sleeve is independently fitted on the suction tube, and the connecting sleeve is detachably installed inside the positioning tube. A first sealing ring is independently fitted on the suction tube, and the first sealing ring is located between the connecting sleeve and the connecting cover.

[0009] Furthermore, a second sealing ring is fitted onto the mouth of the liquid storage bottle, and the second sealing ring is located between the connecting cap and the body of the liquid storage bottle.

[0010] Furthermore, the slot has a "U" shaped structure.

[0011] Furthermore, the liquid storage bottle has graduations on its body for measuring the volume of ascites fluid.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The regulator seals the suction tube, allowing air to circulate at the outlet. Air is drawn from the reservoir via the suction assembly, creating negative pressure. The tip of the puncture needle then penetrates the patient's skin and abdominal muscles into the abdominal cavity. The regulator is then slowly adjusted to seal the suction tube, gradually generating suction at the puncture needle to draw out the accumulated ascites. The aspirated fluid is then drained into the reservoir through the suction tube for storage. The regulator can be adjusted according to the flow rate at the suction tube outlet to prevent excessive suction at the puncture needle from causing patient discomfort. This eliminates the need for prolonged manual operation, reducing the workload of medical staff and making their work easier.

[0014] 2. The liquid outlet of the suction tube is locked in the slot and will not easily come out of the slot. This positions the liquid outlet of the suction tube to prevent it from swinging and affecting its insertion into the storage bottle. This makes it easier and more convenient to insert the liquid outlet of the suction tube into the storage bottle, making the process of changing the storage bottle simpler and faster. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of region a in the middle;

[0017] Figure 3 for Figure 1 Sectional view at point AA;

[0018] Figure 4 This is a perspective view of the present utility model;

[0019] Figure 5 This is an exploded view of the present invention;

[0020] The components in the diagram are as follows: 1. Puncture needle; 2. Suction tube; 3. Regulator; 4. Air inlet box; 5. Box cover; 6. Piston; 7. Spring; 8. Top plate; 9. Moving rod; 10. Air outlet pipe; 11. Valve; 12. Insert rod; 13. Liquid storage bottle; 14. Connecting cap; 15. Second sealing ring; 16. Positioning tube; 17. Connecting sleeve; 18. First sealing ring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0022] Example 1

[0023] This embodiment describes a liver disease ascites aspiration device, such as... Figure 1 , Figure 4 and Figure 5 As shown, the device includes a liquid storage bottle 13 with its opening facing upwards. A connecting cap 14 is detachably fitted onto the opening of the liquid storage bottle 13. The connecting cap 14 is detachably connected via threads. The inner wall of the connecting cap 14 has internal threads, and the opening of the liquid storage bottle 13 has external threads. The engagement of the internal and external threads allows the connecting cap 14 to be detachably fitted onto the opening of the liquid storage bottle 13, facilitating the replacement of the liquid storage bottle 13 when it is full. After use, the connecting cap 14 and the liquid storage bottle 13 can be disassembled for easy rinsing and disinfection, allowing for subsequent reuse and thus saving the cost of aspirating ascites.

[0024] The bottle mouth of the liquid storage bottle 13 is fitted with a second sealing ring 15. The second sealing ring 15 is located between the connecting cap 14 and the bottle body of the liquid storage bottle 13. After the connecting cap 14 is installed on the bottle mouth of the liquid storage bottle 13, it will squeeze the second sealing ring 15, so that the second sealing ring 15 can seal the gap between the connecting cap 14 and the bottle body of the liquid storage bottle 13, preventing air leakage from the liquid storage bottle 13.

[0025] The body of the reservoir bottle 13 is marked with graduations for measuring the volume of ascites fluid. The reservoir bottle 13 is made of transparent material. Medical personnel can determine the volume of ascites fluid in the bottle by observing whether the water level in the reservoir bottle 13 is aligned with the graduations.

[0026] A suction tube 2 is independently passed through the side wall of the connecting cover 14, and a perforation is provided on the cover for the moving rod 9 to pass through independently, so that the liquid outlet end of the suction tube 2 passes through the perforation and is located inside the storage bottle 13, so that the ascites discharged from the liquid outlet end of the suction tube 2 can be stored in the storage bottle 13.

[0027] A regulator 3 is installed on the suction tube 2 to adjust the flow rate of ascites. The regulator 3 is a medical flow rate regulator, which consists of a roller and a housing. It is commonly used on infusion tubes to adjust the flow rate of the medication in the tube and to open and close the flow of the medication. In this embodiment, the regulator 3 can adjust the flow rate of ascites in the suction tube 2 and open and close the suction tube 2. According to the patient's physical condition, the flow rate of ascites in the suction tube 2 can be reasonably adjusted, thereby significantly reducing the amount of fluid in the abdominal cavity in the shortest time and thus rapidly improving the patient's quality of life under reasonable conditions.

[0028] A puncture needle 1 is installed on the inlet end of the suction tube 2. The puncture needle 1 is a medical puncture needle, mainly used to penetrate the skin and abdominal muscles and directly enter the abdominal cavity, so as to extract the accumulated ascites.

[0029] To elaborate further, such as Figure 1 , Figure 2 and Figure 5As shown, this embodiment preferably includes a positioning tube 16, which is horizontally fixed to the side wall of the connecting cover 14. A through hole is provided on the side wall of the connecting cover 14 corresponding to the positioning tube 16 for the independent passage of the suction tube 2. A connecting sleeve 17 is independently fitted onto the suction tube 2. The connecting sleeve 17 is detachably inserted into the positioning tube 16 via threads. External threads are provided on the outer side wall of the connecting sleeve 17, and internal threads are provided on the inner wall of the positioning tube 16, thus allowing the connecting sleeve 17 to be detached. The first sealing ring 18 is independently fitted onto the suction tube 2, located between the connecting sleeve 17 and the connecting cap 14. The first sealing ring 18 is made of medical-grade silicone, fluororubber, polyurethane, natural rubber, nitrile rubber, etc. In use, the connecting sleeve 17 is fitted onto the suction tube 2, and the outlet end of the suction tube 2 passes through the positioning tube 16, the first sealing ring 18, and the through hole, so that the tube body of the outlet end of the suction tube 2 is located inside the storage bottle 13. Then, the connecting sleeve 17 is fitted into the positioning tube 16, and the tube is rotated. The movable connecting sleeve 17 compresses the first sealing ring 18, causing it to deform. The deformed first sealing ring 18 then adheres tightly to the connecting cover 14 and the suction tube 2, sealing the gap at the through hole and securing the suction tube 2, thus facilitating its replacement. After use, the connecting sleeve 17 can be disassembled for easy rinsing and disinfection, allowing for reuse and saving on the cost of aspirating ascites. This entire design constitutes a locking assembly for securing the suction tube 2. The fixing component can also use a T-shaped sleeve. The outer wall of the T-shaped sleeve has external threads, and the side wall of the connecting cover 14 has internal and external threaded holes. A rubber ring is fitted on the T-shaped sleeve. The T-shaped sleeve is fitted onto the suction tube 2. The threaded end of the puncture needle 1 is inserted into the threaded hole. Rotating the T-shaped sleeve moves it into the threaded hole. The protrusion on the T-shaped sleeve squeezes the rubber ring, causing the rubber ring to deform. The deformed rubber ring will fit tightly against the protrusion on the T-shaped sleeve and the suction tube 2, sealing the gap and fixing the suction tube 2.

[0030] To elaborate further, such as Figure 1 , Figure 4 and Figure 5As shown, this embodiment preferably includes an air intake box 4 with a cover. The air intake box 4 has a circular cross-section. The cover 5 is detachably connected to the air intake box 4 via threads. The inner wall of the cover 5 has internal threads, and the outer wall of the upper end of the air intake box 4 has external threads. The cooperation of the internal and external threads allows the cover 5 to be opened or closed, facilitating the disassembly and assembly of internal components and the disinfection and cleaning of the air intake box 4. After disinfection and cleaning, it can be reused, saving the cost of suctioning ascites fluid. The cover 5 has inlet and outlet holes for air intake and exhaust. Fixed to the top of the connecting cover 14, the bottom of the air inlet box 4 has an air inlet hole that connects its interior to the interior of the liquid storage bottle 13. Air from the liquid storage bottle 13 can enter the air inlet box 4 through the air inlet hole, and air from the connecting cover 14 can enter the liquid storage bottle 13 through the air inlet hole. A piston 6 is installed inside the air inlet box 4. The piston 6 is made of materials such as silicone, butyl rubber, butyl styrene, and vulcanized rubber. The piston 6 and the inner wall of the air inlet box 4 are interference fit, so that the piston 6 can seal the gap between itself and the inner wall of the air inlet box 4 through its own characteristics to prevent air leakage.

[0031] A movable rod 9 is vertically fixed to the top of the piston 6. A through hole is provided on the cover for the movable rod 9 to pass through independently. A top plate 8 is detachably fixed to the top of the movable rod 9. A spring 7 is fitted onto the movable rod 9, located between the top plate 8 and the cover. The top plate 8 is fixed to the top of the movable rod 9 with screws, allowing for easier replacement and disassembly of the spring. After disassembly, the piston 6, movable rod 9, and spring 7 can be rinsed and disinfected. They can be reused after disinfection and cleaning, saving the cost of aspirating ascites. During use, pressing down on the top plate 8 causes the spring 7 to contract under the pressure of the top plate 8. This, in turn, pushes the movable rod 9 downwards, which in turn pushes the piston 6 downwards within the air inlet box 4, expelling air from the lower half of the air inlet box 4 and allowing it to enter the storage bottle 13. The air in the storage bottle 13 is then discharged to the outside through the air outlet pipe 10. When the air outlet pipe 10 is closed, releasing the pressure on the top plate 8 causes the spring 7 to push downwards through its own elasticity. The top plate 8 moves upward to return to its original position, and the moving rod 9 pulls the piston 6 upward, causing the air in the liquid storage bottle 13 to be gradually drawn into the air intake box 4 through the air inlet, creating a negative pressure inside the liquid storage bottle 13. This scheme constitutes an air intake assembly for drawing air from the liquid storage bottle 13. Of course, the air intake assembly can also be an air intake pump, i.e., a miniature vacuum pump or miniature suction pump. Its working principle is the same as that of a miniature vacuum pump. Both are based on the circular motion of the motor, which causes the diaphragm inside the pump to reciprocate through a mechanical device. This compresses and stretches the air in the fixed-volume pump chamber to form a vacuum (negative pressure). A pressure difference is generated between the pump's air intake port and the external atmospheric pressure. Under the action of the pressure difference, the gas is forced (drawn) into the pump chamber and then discharged from the exhaust port. The air intake pump is installed on the top of the connecting cover 14, and the air intake port of the air intake pump is connected to the inside of 14. The air intake pump draws out the air from the liquid storage bottle 13, creating a negative pressure inside the liquid storage bottle 13.

[0032] The top of the top plate 8 is provided with anti-slip texture to increase friction between the skin and the top plate 8; the anti-slip texture can enhance the friction between the skin and the top plate 8 and prevent slippage when the hand presses down on the top plate 8;

[0033] The bottom of the air inlet box 4 is vertically fixed with an insert rod 12 for independent insertion into the liquid storage bottle 13. The insert rod 12 is a round rod, but a square rod or other shapes of rod can also be used.

[0034] The insert rod 12 has a slot for engaging the liquid outlet end of the suction tube 2. The slot has a "U" shape. When the liquid outlet end of the suction tube 2 is engaged in the slot, there is an interference fit between the suction tube 2 and the slot, which allows the liquid outlet end of the suction tube 2 to be tightly engaged in the slot and not easily come out of the slot. This positions the liquid outlet end of the suction tube 2 and prevents it from swinging and affecting its insertion into the storage bottle 13. When the connecting cap 14 is installed at the bottle mouth, the insert rod 12 will be inserted into the storage bottle 13, making it easier and more convenient to insert the liquid outlet end of the suction tube 2 into the storage bottle 13, making the process of replacing the storage bottle 13 simpler and faster.

[0035] A vent pipe 10 is connected to the side wall of the connecting cover 14 and communicates with it. A valve 11 is installed on the vent pipe 10. The valve is a control component in the fluid transport system and has functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. When it is necessary to discharge the air in the liquid storage bottle 13, the valve 11 is opened to allow the air in the liquid storage bottle 13 to be discharged to the outside through the vent pipe 10. Then, the valve 11 is closed to prevent air circulation between the inside and outside of the liquid storage bottle 13.

[0036] In actual use, firstly, the suction tube 2 is sealed by the regulator 3, then the valve 11 is opened to allow air to circulate through the vent pipe 10. The top plate 8 is then pressed down, causing the spring 7 to contract under the pressure of the top plate 8. The top plate 8 pushes the moving rod 9 downwards, which in turn pushes the piston 6 downwards within the air inlet box 4, expelling the air from the lower half of the air inlet box 4 and allowing it to enter the storage bottle 13. The air in the storage bottle 13 is then expelled to the outside through the vent pipe 10. After the air in the air inlet box 4 is emptied, the valve 11 is closed, releasing the pressure on the top plate 8. The spring 7, through its elasticity, pushes the top plate 8 upwards to return to its original position. The moving rod 9 pulls the piston 6 upwards, causing the air to flow out of the storage bottle 13. Air in the reservoir 13 is gradually drawn into the air inlet box 4 through the air inlet, creating negative pressure inside the reservoir 13. Then, the tip of the puncture needle 1 penetrates the patient's skin and abdominal muscles and enters the abdominal cavity. The regulator 3 is slowly adjusted to seal the suction tube 2, gradually generating suction at the puncture needle 1 to draw out the ascites accumulated in the abdominal cavity. The ascites drawn out by the puncture needle 1 is then discharged into the reservoir 13 for storage through the suction tube 2. The regulator 3 can be adjusted according to the flow rate at the outlet of the suction tube 2 to avoid excessive suction at the puncture needle 1, which could cause discomfort to the patient. This eliminates the need for prolonged manual operation, reducing the workload of medical staff and making their work easier.

Claims

1. A liver disease ascites suction apparatus comprising a reservoir bottle (13) with its mouth facing upward, characterized in that: The bottle mouth of the liquid storage bottle (13) is detachably sleeved with a connecting cover (14), a suction tube (2) is independently penetrated through the sidewall of the connecting cover (14), an adjuster (3) for adjusting the flow rate of ascites is mounted on the suction tube (2), a puncture needle (1) is mounted on the liquid inlet end of the suction tube (2), a locking assembly for locking the suction tube (2) is arranged between the suction tube (2) and the connecting cover (14), an air suction assembly for sucking air in the liquid storage bottle (13) is arranged on the top of the connecting cover (14), a plug rod (12) for being independently penetrated into the liquid storage bottle (13) is vertically fixed on the air suction assembly, a clamping groove for clamping the liquid outlet end tube body of the suction tube (2) is formed on the plug rod (12), an air outlet tube (10) in communication with the connecting cover (14) is connected to the sidewall of the connecting cover (14), and a valve (11) is mounted on the air outlet tube (10).

2. The ascites pump for liver disease according to claim 1, characterized by: The air suction assembly comprises an air inlet box (4) with a box cover, the air inlet box (4) is fixed to the top of the connecting cover (14), an air inlet hole for connecting the inside of the air inlet box (4) with the inside of the liquid storage bottle (13) is formed on the bottom of the air inlet box (4), a piston (6) is penetrated into the air inlet box (4), a moving rod (9) is vertically fixed to the top of the piston (6), a perforation for the moving rod (9) to be independently penetrated through is formed on the box cover, a top plate (8) is detachably fixed to the top of the moving rod (9), a spring (7) is sleeved on the moving rod (9), and the spring (7) is located between the top plate (8) and the box cover.

3. The ascites drainage device for liver disease according to claim 2, characterized by: Anti-skid lines are formed on the top of the top plate (8) for increasing the friction with the skin.

4. The ascites drainage device for liver disease according to claim 1, characterized by: The locking assembly comprises a positioning tube (16) which is horizontally fixed to the sidewall of the connecting cover (14), a through hole for the suction tube (2) to be independently penetrated through is formed on the sidewall of the connecting cover (14) corresponding to the positioning tube (16), a connecting sleeve (17) is independently sleeved on the suction tube (2), the connecting sleeve (17) is detachably penetrated into the positioning tube (16), and a first sealing ring (18) is independently sleeved on the suction tube (2) and located between the connecting sleeve (17) and the connecting cover (14).

5. The ascites drainage device for liver disease according to claim 1, characterized by: A second sealing ring (15) is sleeved on the bottle mouth of the liquid storage bottle (13) and located between the connecting cover (14) and the bottle body of the liquid storage bottle (13).

6. The ascites drainage device for liver disease according to claim 1, characterized by: The clamping groove is in a "U" type structure.

7. The ascites drainage device for liver disease according to claim 1, characterized by: A scale for measuring the volume of ascites is formed on the bottle body of the liquid storage bottle (13).

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