Accretion drainage and extraction device for nursing

By combining the drainage and aspiration components with the blockage-clearing components, the problem of blockage in cardiology drainage equipment has been solved, achieving efficient drainage and simple unblocking of accumulated fluid, thus improving operational efficiency and convenience.

CN224180007UActive Publication Date: 2026-05-01THE 989TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 989TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2024-12-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing cardiology drainage equipment is prone to blockage during use and is difficult to clear efficiently, causing inconvenience to medical staff and patients.

Method used

A nursing fluid drainage and extraction device was designed, comprising a drainage and suction component and a blockage unblocking component. The device uses a negative pressure pump to provide suction and utilizes the unblocking groove of the blockage unblocking component to squeeze and expel the infusion tubing, thereby achieving smooth drainage of the accumulated fluid.

Benefits of technology

It improves the efficiency of drainage of accumulated fluid and the convenience of unblocking operations, ensures the stability and flexibility of the drainage process, and simplifies the process of dealing with blockages.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224180007U_ABST
    Figure CN224180007U_ABST
Patent Text Reader

Abstract

The hydrops drainage and extraction device comprises a drainage and liquid suction assembly, the drainage and liquid suction assembly comprises a liquid storage bottle and a drainage suction head, the top of the liquid storage bottle is open, and a bottle cap used for controlling the top to be opened and closed is coaxially and detachably combined with the top of the liquid storage bottle. A liquid inlet connecting pipe and an air suction connecting pipe are vertically fixed to the two sides of the top of the bottle cap in a penetrating mode respectively, and a blockage dredging assembly used for conducting blockage dredging operation on the infusion hose is arranged at the position, between the liquid inlet connecting pipe and the air suction connecting pipe, of the top face of the bottle cap in a combined mode. The device has the beneficial effects that the blockage dredging assembly is arranged, so that accumulated liquid in the infusion hose can be extruded and driven in a manner of clamping the infusion hose into the dredging groove of the blockage dredging assembly and then pulling the infusion hose to move along the axial direction of the dredging groove, and smooth dredging when the infusion hose is blocked by the accumulated liquid is realized; the dredging mode for the blockage of the infusion hose is simple and easy to realize, and the operation efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cardiology nursing auxiliary components, specifically to a nursing fluid drainage and extraction device. Background Technology

[0002] Cardiology is a clinical department set up by the internal medicine department of hospitals at all levels to diagnose and treat cardiovascular diseases. In the treatment of cardiovascular diseases, drainage equipment is an essential treatment device, which plays an important role in draining the fluid accumulated under the skin or in the cavity. However, the drainage equipment currently used generally only adopts a simple gravity drainage method. During the drainage process, the drainage tube often becomes blocked (the pleural effusion contains a relatively viscous fluid, which can cause blockage of the drainage tube during the drainage process). The drainage equipment is not easy to disassemble, clean, and disinfect, which causes great inconvenience to medical staff and patients.

[0003] In existing technologies, two methods are commonly used to solve the problem of tubing blockage during drainage. One method involves medical staff manually squeezing the drainage tubing to deform it, thereby increasing the flow rate of the accumulated fluid in the tubing and flushing away the blockage. The other method involves increasing the negative pressure of the drainage device to accelerate the flow of the accumulated fluid and flush away the blockage. However, in practice, the first method is inefficient and ineffective. While the second method is relatively better than the first, the volume of the accumulated fluid in the drainage tubing is limited, and the tubing is curved, so the unblocking effect is still limited and it is difficult to solve the blockage problem. Utility Model Content

[0004] The purpose of this invention is to provide a nursing fluid drainage and extraction device to solve the above-mentioned problems. By inserting the infusion tubing into the unblocking groove of the blockage unblocking component and pulling the infusion tubing along the axial direction of the unblocking groove, the fluid in the infusion tubing can be squeezed and driven out, thereby achieving smooth unblocking when the infusion tubing is blocked by fluid accumulation. See the following description for details.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a nursing fluid drainage and aspiration device, including a drainage and aspiration assembly. The drainage and aspiration assembly includes a storage bottle and a drainage suction head. The top of the storage bottle is open and coaxially detachable with a bottle cap for controlling the opening and closing of the top. An inlet tube and a suction tube are vertically inserted and fixed on both sides of the top of the bottle cap. The bottom inner ends of the inlet tube and the suction tube are located inside the storage bottle. The top outer ends of the inlet tube and the suction tube are respectively fixedly connected to an infusion tubing and a suction power assembly through a pipe joint. The outer end of the infusion tubing is fixedly connected to the drainage suction head for extending to the drainage position to aspirate the fluid.

[0007] The top surface of the bottle cap is provided with a blockage-clearing component for clearing blockages in the infusion tubing at a position between the inlet connector and the suction connector.

[0008] Preferably, the liquid storage bottle is a transparent bottle with graduations, and the bottle cap is coaxially and detachably connected to the liquid storage bottle by means of a threaded connection.

[0009] Preferably, both the liquid inlet pipe and the air intake pipe are L-shaped tubes with their horizontal portions located at the top and extending outwards. The bottom inner end of the liquid inlet pipe is located at the bottom of the liquid storage bottle, and the bottom inner end of the air intake pipe is located at the top of the liquid storage bottle.

[0010] Preferably, a shut-off valve for controlling opening and closing is coaxially mounted on the outer periphery of the horizontal portion at the top of the inlet pipe.

[0011] Preferably, all the pipe fittings are quick connectors, the drainage pipette is a hollow tube with a closed front end, and multiple suction holes are evenly distributed around the periphery of the drainage pipette.

[0012] Preferably, the suction power assembly includes a negative pressure pump body and a control button. The connecting air pipe at the top of the negative pressure pump body is fixedly connected to the outer end of the suction pipe through the pipe joint, and the control button for adjusting the working state is provided on the front of the top of the negative pressure pump body.

[0013] Preferably, the blockage clearing component includes a fixing block and a vertical plate. The fixing block is fixed on the top surface of the bottle cap at a position between the inlet tube and the suction tube. The top surface of the fixing block has a slot vertically formed. The front of the fixing block has a through hole along the longitudinal direction, and the through hole is vertically connected to the slot. The vertical plate is inserted into the slot in a vertical sliding fit. The bottom front of the vertical plate has a locking hole along the longitudinal direction, and the locking hole is coaxial with the through hole. The top front of the vertical plate has a clearing groove along the longitudinal direction that can hold the infusion tubing. The clearing groove is a through groove in the longitudinal direction, and the top of the clearing groove is open.

[0014] Preferably, the cross-sectional shape of the unblocking groove along the horizontal vertical plane is semi-elliptical with its major axis set vertically, and the top opening width of the unblocking groove is not greater than the diameter of the infusion tubing, and flat collars are installed on the upper parts of both sides of the upright plate.

[0015] Preferably, the insertion hole and the locking hole are coaxially and detachably fitted with a locking rod, and the front end of the locking rod is coaxially fixed with a gripping end for easy holding and applying force.

[0016] Preferably, both the insertion hole and the locking hole are threaded holes, the locking rod is a stud, and the locking rod is coaxially and detachably connected to both the insertion hole and the locking hole through a threaded engagement.

[0017] When using the aforementioned pleural effusion drainage and aspiration device in a cardiology department for the drainage and aspiration of pleural effusion, the drainage suction head is inserted into the location of the pleural effusion. The negative pressure pump is then energized and the shut-off valve is opened. Suction is generated by the negative pressure pump through the connecting tubing and the suction tube. During this process, the effusion enters through the suction hole of the drainage suction head and passes through the infusion tubing and the inlet tube into the collection bottle for collection. Thus, by placing the drainage suction head of the drainage and aspiration assembly at the location of the effusion and drawing in the effusion through the suction hole, the effusion can be drained. The fluid enters the storage bottle through the infusion tubing and the inlet connector and is collected. The drainage and aspiration method is simple and easy to implement. Simultaneously, the negative pressure pump body of the suction power assembly, through the suction connector, provides suction, enabling the drainage head to efficiently and stably aspirate the accumulated fluid, thus improving drainage efficiency. During the drainage process, if the infusion tubing becomes blocked and needs to be cleared, the blockage clearing component allows the infusion tubing to be inserted into the clearing groove of the component and then pulled axially along the clearing groove to clear the blockage. The fluid accumulated inside the infusion tubing is squeezed and expelled to smoothly clear any blockages. This method of clearing blockages in the infusion tubing is simple, easy to implement, and highly efficient. Specifically, during the pulling process, the infusion tubing is inserted into the clearing groove near the suction head, and then pulled. During this process, the negative pressure pump can be in operation to assist in clearing the blockage through negative pressure suction. Regarding the assembly and disassembly of the upright plate on the top of the bottle cap, the upright plate vertically engages with the slot, and the locking rod passes through the mounting hole. The locking hole's longitudinal engagement allows the upright plate to be detachably attached to the top of the bottle cap. Simply disengaging the locking rod longitudinally from the locking hole allows the upright plate to slide vertically out of the slot and detach from the top of the bottle cap. The assembly and disassembly of the upright plate on the top of the bottle cap is simple and easy to implement. This facilitates the use and storage of the unblocking channel when the upright plate is attached to the top of the bottle cap, while also allowing the unblocking channel to actively move along the infusion tubing by holding the upright plate after it has been removed, ensuring good flexibility during use.

[0018] The beneficial effects are as follows: 1. This utility model is equipped with a blockage-clearing component. By inserting the infusion tubing into the unblocking groove of the blockage-clearing component and then pulling the infusion tubing to move along the unblocking groove axially, the accumulated liquid in the infusion tubing can be squeezed and driven away, thereby achieving smooth unblocking when the infusion tubing is blocked by accumulated liquid. The method of unblocking the infusion tubing is simple, easy to implement, and has high operating efficiency.

[0019] 2. The upright plate can be detachably assembled on the top of the bottle cap by vertically engaging the upright plate with the slot and longitudinally engaging the locking rod through the mounting hole and the locking hole. The upright plate can be detached from the top of the bottle cap by simply disengaging the locking rod longitudinally from the locking hole. The assembly and disassembly of the upright plate on the top of the bottle cap is simple and easy to implement. It is convenient to use and store the unblocking channel in a stationary state after assembling the upright plate on the top of the bottle cap. At the same time, it is convenient to remove the upright plate and move the unblocking channel along the infusion tube by holding the upright plate to clear blockages. This ensures that the upright plate has good flexibility when in use.

[0020] 3. By placing the drainage suction head of the drainage and aspiration assembly at the location of the accumulated fluid and drawing it in through the suction hole, the accumulated fluid can be collected in the storage bottle via the infusion tubing and inlet connector. The drainage and aspiration method is simple and easy to implement. At the same time, the suction power assembly provides suction through the suction connector, which enables the drainage suction head to efficiently and stably draw in the accumulated fluid, thus improving the drainage and aspiration efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall isometric schematic diagram of this utility model;

[0023] Figure 2 This is a utility model Figure 1 Cross-section diagram Figure 1 ;

[0024] Figure 3 This is a utility model Figure 1 Cross-section diagram Figure 2 ;

[0025] Figure 4 This is a utility model Figure 3 A magnified view of part A;

[0026] Figure 5 This is a utility model Figure 1 A frontal view diagram.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Drainage and aspiration assembly; 101. Suction hole; 102. Drainage suction tip; 103. Pipe connector; 104. Infusion tubing; 105. Storage bottle; 106. Bottle cap; 107. Inlet pipe; 108. Shut-off valve; 109. Suction pipe; 2. Blockage clearing assembly; 201. Stand plate; 202. Clearing groove; 203. Collar; 204. Fixing block; 205. Holding end; 206. Slot; 207. Locking hole; 208. Locking rod; 209. Through hole; 3. Suction power assembly; 301. Connecting air pipe; 302. Negative pressure pump body; 303. Control buttons. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] See Figures 1-5 As shown, this utility model provides a nursing fluid drainage and aspiration device, including a drainage and aspiration assembly 1. The drainage and aspiration assembly 1 includes a storage bottle 105 and a drainage suction head 102. The top of the storage bottle 105 is open and coaxially detachable, with a bottle cap 106 for controlling the opening and closing of the top. An inlet tube 107 and an air suction tube 109 are vertically inserted and fixed on both sides of the top of the bottle cap 106, respectively. The bottom inner ends of the inlet tube 107 and the air suction tube 109 are both located inside the storage bottle 105. The top outer ends of the inlet tube 107 and the air suction tube 109 are respectively fixedly connected to an infusion tubing 104 and a suction power assembly 3 through a pipe connector 103. The outer end of the infusion tubing 104 is fixedly connected to the drainage suction head 102 for extending to the drainage position to aspirate the fluid through the pipe connector 103. The drainage suction head 102 has evenly distributed openings around its periphery. Multiple suction holes 101 are provided. Specifically, the suction power assembly 3 includes a negative pressure pump body 302 and a control button 303. The connecting air pipe 301 at the top of the negative pressure pump body 302 is fixedly connected to the outer end of the suction pipe 109 through the pipe joint 103. The front of the top of the negative pressure pump body 302 is provided with a control button 303 for adjusting the working state. The purpose of this arrangement is that after the suction head 102 of the suction assembly 1 is placed at the liquid accumulation position, the liquid can be sucked up through the suction holes 101, so that the liquid can enter the storage bottle 105 through the infusion tubing 104 and the inlet pipe 107 and be collected. The method of suctioning the liquid accumulation is simple and easy to implement. At the same time, the suction provided by the negative pressure pump body 302 of the suction power assembly 3 through the suction pipe 109 enables the suction head 102 to efficiently and stably suck up the liquid accumulation.

[0031] See Figures 1-3 As shown, a blockage-clearing component 2 for unblocking the infusion tubing 104 is assembled on the top surface of the bottle cap 106 between the inlet tube 107 and the suction tube 109. Specifically, the blockage-clearing component 2 includes a fixing block 204 and a vertical plate 201. The fixing block 204 is fixed on the top surface of the bottle cap 106 between the inlet tube 107 and the suction tube 109, and a slot 206 is vertically formed on the top surface of the fixing block 204. An insertion hole 209 is formed on the front of the fixing block 204 along the longitudinal direction, and the insertion hole 209 is vertically connected to the slot 206. The vertical plate 201 is inserted into the slot 206 in a vertical sliding fit. The bottom front of the upright plate 201 has a locking hole 207 longitudinally arranged, and the locking hole 207 is longitudinally coaxial with the insertion hole 209. The top front of the upright plate 201 has a clearing groove 202 that can hold the infusion tubing 104. The clearing groove 202 is a through groove in the longitudinal direction, and the top of the clearing groove 202 is open. The purpose of this setting is that by inserting the infusion tubing 104 into the clearing groove 202 of the blockage clearing component 2 and pulling the infusion tubing 104 along the axial direction of the clearing groove 202, the accumulated liquid in the infusion tubing 104 can be squeezed and driven out, thereby realizing the smooth clearing of the blockage when the infusion tubing 104 is blocked by accumulated liquid.

[0032] See Figures 1-3 As shown, the drainage and aspiration component 1 and the blockage clearing component 2 have been optimized as follows. Specifically, for the drainage and aspiration component 1, the storage bottle 105 is a transparent bottle with graduations. The bottle cap 106 is coaxially and detachably connected to the storage bottle 105 by means of a threaded connection, so that the changes in the liquid level in the storage bottle 105 can be clearly seen. At the same time, the bottle cap 106 can be quickly assembled and disassembled with the storage bottle 105 by twisting, which is convenient for subsequent cleaning operations. Optionally, both the inlet connector 107 and the suction connector 109 are L-shaped tubes with their horizontal portions located at the top and extending outwards. The inner bottom end of the inlet connector 107 is located at the inner bottom of the storage bottle 105, and the inner bottom end of the suction connector 109 is located at the inner top of the storage bottle 105. Preferably, the inner bottom end of the suction connector 109 is located at a height close to the mouth of the storage bottle 105. During use, the storage bottle 105 should be kept upright to prevent liquid accumulated in the storage bottle 105 from entering the suction connector 109. Optionally, a shut-off valve 108 for controlling opening and closing is coaxially installed on the outer periphery of the horizontal portion at the top of the inlet connector 107. This allows for pausing the drainage and suction process by closing the shut-off valve 108, and also prevents backflow of accumulated liquid into the infusion tubing 104. Alternatively, all pipe fittings 103 are quick-connect fittings, and the drainage suction head 102 is a hollow tube with a closed front end. This configuration facilitates the quick assembly and disassembly of pipes through the pipe fittings 103, and also makes it convenient.

[0033] Specifically, regarding the blockage unblocking component 2, the unblocking groove 202 has a semi-elliptical cross-sectional shape along its horizontal vertical plane with its major axis set vertically. At the same time, the top opening width of the unblocking groove 202 is not greater than the diameter of the infusion tubing 104, so that the shape of the unblocking groove 202 can hold the infusion tubing 104 in place and can cause the infusion tubing 104 to be squeezed and deformed to a certain extent during the holding process. Optionally, flat collars 203 can be installed on the upper part of both sides of the upright plate 201, so that after the upright plate 201 is removed from the top of the bottle cap 106, the upright plate 201 can be stably held by passing fingers through the collars 203. Optionally, a locking rod 208 is detachably inserted into the through hole 209 and the locking hole 207, and the front end of the locking rod 208 is coaxially fixed to a gripping end 205 for easy holding and applying force. With this configuration, it is easy to hold the gripping end 205 to drive the locking rod 208 axially. At the same time, the vertical plate 201 can be detachably assembled on the top of the bottle cap 106 by vertically engaging the vertical plate 201 with the slot 206 and longitudinally engaging the locking rod 208 through the mounting hole with the locking hole 207. The vertical plate 201 can be detached from the top of the bottle cap 106 by simply disengaging the locking rod 208 longitudinally from the locking hole 207. The assembly and disassembly of the vertical plate 201 on the top of the bottle cap 106 is simple and easy to implement. Furthermore, both the insertion hole 209 and the locking hole 207 are threaded holes, and the locking rod 208 is a stud. The locking rod 208 is coaxially and detachably connected to the insertion hole 209 and the locking hole 207 through threaded engagement. This design facilitates the quick assembly and disassembly of the locking rod 208 with the insertion hole 209 and the locking hole 207 by turning the locking rod 208.

[0034] Using the above structure, specifically for drainage and aspiration of pleural effusion in cardiology, the drainage suction head 102 is inserted into the pleural effusion location. The negative pressure pump body 302 is energized and the shut-off valve 108 is opened. Suction is generated by the negative pressure pump body 302 through the connecting trachea 301 to the inhalation tube 109. During this process, the effusion enters through the suction hole 101 of the drainage suction head 102 and is collected in the reservoir bottle 105 via the infusion tubing 104 and the inlet tube 107. Thus, by placing the drainage suction head 102 at the effusion location and drawing in the effusion through the suction hole 101, the effusion can be drawn through the infusion tubing 104. 4. The infusion tube 107 and the liquid inlet pipe 107 enter the storage bottle 105 and are collected. The drainage and aspiration method for the accumulated liquid is simple and easy to implement. At the same time, the suction provided by the negative pressure pump body 302 of the suction power component 3 through the suction pipe 109 enables the drainage head 102 to efficiently and stably aspirate the accumulated liquid, which is beneficial to improving the drainage and aspiration efficiency. During the drainage and aspiration process, when the infusion tubing 104 becomes blocked and needs to be cleared, the blockage clearing component 2 is provided. By inserting the infusion tubing 104 into the clearing groove 202 of the blockage clearing component 2 and pulling the infusion tubing 104 axially along the clearing groove 202, the accumulated liquid in the infusion tubing 104 can be cleared. Squeezing and pushing are used to smoothly clear the blockage of the infusion tubing 104 when fluid accumulates. The method of clearing the blockage of the infusion tubing 104 is simple, easy to implement, and highly efficient. Specifically, when pulling to clear the blockage, the infusion tubing 104 is inserted into the clearing groove 202 from the position near the drainage suction head 102, and then the infusion tubing 104 is pulled. During this process, the negative pressure pump body 302 can be in working state to assist the blockage clearing operation through negative pressure suction. Specifically, when assembling and disassembling the upright plate 201 on the top of the bottle cap 106, the upright plate 201 is vertically engaged with the slot 206, and the locking rod 208 passes through the mounting hole and is longitudinally engaged with the locking hole 207. The assembly method allows the upright plate 201 to be detachably attached to the top of the bottle cap 106. Simply by disengaging the locking rod 208 longitudinally from the locking hole 207, the upright plate 201 can slide vertically out of the slot 206 and be removed from the top of the bottle cap 106. The assembly and disassembly of the upright plate 201 on the top of the bottle cap 106 is simple and easy to implement. It is convenient to use and store the unblocking groove 202 in a stationary state after the upright plate 201 is attached to the top of the bottle cap 106. At the same time, it is convenient to remove the upright plate 201 and move the unblocking groove 202 along the infusion tubing 104 by holding the upright plate 201 to clear blockages. This ensures that the upright plate 201 has good flexibility when in use.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A nursing fluid drainage and aspiration device, comprising a drainage and aspiration assembly (1), characterized in that: The drainage and aspiration assembly (1) includes a storage bottle (105) and a drainage suction head (102). The top of the storage bottle (105) is open and coaxially detachable and assembled with a bottle cap (106) for controlling the opening and closing of the top. The top two sides of the bottle cap (106) are respectively vertically inserted and fixed with an inlet tube (107) and an air suction tube (109). The bottom inner ends of the inlet tube (107) and the air suction tube (109) are both located inside the storage bottle (105). The top outer ends of the inlet tube (107) and the air suction tube (109) are respectively fixedly connected to an infusion hose (104) and a suction power assembly (3) through a pipe joint (103). The outer end of the infusion hose (104) is fixedly connected to the drainage suction head (102) for extending to the drainage position to aspirate the accumulated liquid through the pipe joint (103). The top surface of the bottle cap (106) is provided with a blockage and unblocking component (2) for unblocking the infusion tubing (104) at a position between the inlet tube (107) and the suction tube (109).

2. The nursing fluid drainage and extraction device according to claim 1, characterized in that: The liquid storage bottle (105) is a transparent bottle with graduations, and the bottle cap (106) is coaxially and detachably connected to the liquid storage bottle (105) by means of threaded engagement.

3. The nursing fluid drainage and extraction device according to claim 1, characterized in that: Both the liquid inlet pipe (107) and the air intake pipe (109) are L-shaped pipes with their horizontal portions located at the top and extending outwards. The bottom inner end of the liquid inlet pipe (107) is located at the inner bottom of the liquid storage bottle (105), and the bottom inner end of the air intake pipe (109) is located at the inner top of the liquid storage bottle (105).

4. The nursing fluid drainage and extraction device according to claim 1, characterized in that: A shut-off valve (108) for controlling opening and closing is coaxially mounted on the outer periphery of the horizontal portion at the top of the liquid inlet pipe (107).

5. The nursing fluid drainage and extraction device according to claim 1, characterized in that: All the pipe fittings (103) are quick connectors, the drainage pipette (102) is a hollow tube with a closed front end, and the drainage pipette (102) has multiple suction holes (101) evenly distributed around its periphery.

6. A nursing fluid drainage and extraction device according to any one of claims 1-5, characterized in that: The suction power assembly (3) includes a negative pressure pump body (302) and a control button (303). The connecting air pipe (301) at the top of the negative pressure pump body (302) is fixedly connected to the outer end of the suction pipe (109) through the pipe joint (103). The control button (303) for adjusting the working state is provided on the front of the top of the negative pressure pump body (302).

7. The nursing fluid drainage and extraction device according to claim 6, characterized in that: The blockage clearing component (2) includes a fixing block (204) and a vertical plate (201). The fixing block (204) is fixed on the top surface of the bottle cap (106) between the liquid inlet pipe (107) and the air intake pipe (109). The top surface of the fixing block (204) has a slot (206) vertically formed. The front of the fixing block (204) has a through hole (209) longitudinally formed, and the through hole (209) is vertically connected to the slot (206). The upright plate (201) is inserted into the slot (206) in a vertical sliding fit. The bottom front of the upright plate (201) has a locking hole (207) along the longitudinal direction, and the locking hole (207) is coaxial with the insertion hole (209) in the longitudinal direction. The top front of the upright plate (201) has a clearing groove (202) that can hold the infusion tubing (104) along the longitudinal direction. The clearing groove (202) is a through groove in the longitudinal direction, and the top of the clearing groove (202) is open.

8. The nursing fluid drainage and extraction device according to claim 7, characterized in that: The cross-sectional shape of the unblocking groove (202) along the horizontal vertical plane is semi-elliptical and the major axis is set vertically. At the same time, the top opening width of the unblocking groove (202) is not greater than the diameter of the infusion hose (104). Flat collars (203) are installed on the upper part of both sides of the upright plate (201).

9. A nursing fluid drainage and extraction device according to claim 7 or 8, characterized in that: The insertion hole (209) and the locking hole (207) are coaxially and detachably fitted with a locking rod (208), and the front end of the locking rod (208) is coaxially fixed with a holding end (205) for easy gripping and applying force.

10. The nursing fluid drainage and extraction device according to claim 9, characterized in that: Both the insertion hole (209) and the locking hole (207) are threaded holes, and the locking rod (208) is a stud. The locking rod (208) is coaxially and detachably connected to both the insertion hole (209) and the locking hole (207) through a threaded engagement.