An abdominal cavity drainage assembly capable of retaining drained fluid

Abstract

The utility model discloses a kind of abdominal cavity drainage components of drainage liquid can be kept, including abdominal cavity drainage tube, drainage bag, flushing bag and sampling container, abdominal cavity drainage tube is equipped with three-way valve, abdominal cavity drainage tube includes in-vivo tube, extracorporeal tube and auxiliary pipe, in-vivo tube, extracorporeal tube and auxiliary pipe are connected to three-way valve respectively, rotatable valve core is equipped in three-way valve, by rotating valve core, so that in-vivo tube and auxiliary pipe are communicated, or in-vivo tube and extracorporeal tube are communicated.In-vivo tube end portion is placed in patient abdominal cavity, extracorporeal tube end portion is connected drainage bag, auxiliary pipe end portion is equipped with functional interface, functional interface can be selectively connected flushing bag and sampling container.Three-way valve back is connected with the fixed clamp of " " character shape, fixed clamp is equipped with mouth, mouth can be clamped and fixed bed rail, so that three-way valve is fixed on bed rail.The utility model makes abdominal cavity drainage tube have the function of perfusion flushing liquid and keep drainage liquid by three-way valve, by fixed clamp, three-way valve is fixed in different positions of bed rail and keeps three-way valve vertical.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an abdominal drainage component capable of collecting drainage fluid. Background Technology

[0002] Abdominal drainage and irrigation is a procedure that involves injecting fluid (usually saline or other solutions) into the abdominal cavity and then aspirating it to remove foreign bodies, blood clots, pus, bacteria, and other contaminants. Its purpose is to reduce the risk of intra-abdominal infection and promote postoperative recovery.

[0003] Currently, there are two common methods for collecting drainage fluid samples in clinical practice: one is to collect it from the drainage bag, and the other is to puncture the drainage tube to aspirate the fluid.

[0004] The shortcomings of the above technologies are: First, the drainage bag is not frequently changed, and there is a risk of specimen contamination when taking samples from the drainage bag, which can mislead the assessment of postoperative infection. In addition, the physicochemical properties of the fluid change after being left for a long time, leading to inaccurate test results.

[0005] Second, although using a syringe to puncture the drainage tube is relatively accurate, there is a risk of needlestick injury to medical staff, an increased risk of nosocomial infection, and leakage of drainage fluid from the puncture site.

[0006] Chinese utility model patent CN218247978U, published on January 10, 2023, discloses a drainage device for facilitating the collection of peritoneal drainage fluid specimens. The device includes a first catheter, a second catheter, a drainage fluid storage chamber, a first diversion tube, a second diversion tube, and a connecting tube. The first and second diversion tubes divide the peritoneal drainage fluid into two streams: one stream directly enters the drainage bag, and the other enters the drainage fluid storage chamber. This rapid inflow and slow outflow method keeps the drainage fluid storage chamber in a flowing state, ensuring a continuous flow of fresh bodily fluid and reducing the possibility of contamination. Furthermore, the use of a puncture device for collecting the peritoneal drainage fluid specimen minimizes the risk of puncture injury.

[0007] However, there are still shortcomings: The drainage device does not have the function of connecting a flushing bag to inject flushing fluid; The drainage fluid storage cavity cannot be fixed in position and is difficult to keep upright. Utility Model Content

[0008] The purpose of this invention is to provide an abdominal drainage assembly that can collect drainage fluid. A three-way valve enables the abdominal drainage tube to have the functions of infusing irrigation fluid and collecting drainage fluid. A fixing clip fixes the three-way valve at different positions on the bed edge and keeps the three-way valve upright.

[0009] To achieve the above objective of the utility model, the utility model adopts the following technical solution: An abdominal drainage assembly capable of collecting drainage fluid, comprising an abdominal drainage tube, a drainage bag for collecting drainage fluid, a irrigation bag for perfusing irrigation fluid, and a sampling container for collecting drainage fluid for culture. The abdominal drainage tube is provided with a three-way valve, and the abdominal drainage tube includes an in-vivo tube, an in-vitro tube and an auxiliary tube. The in-vivo tube, the in-vitro tube and the auxiliary tube are respectively connected to the three-way valve. A rotatable valve core is arranged inside the three-way valve. By rotating the valve core, the in-vivo tube is communicated with the auxiliary tube, or the in-vivo tube is communicated with the in-vitro tube. The end of the in-vivo tube is placed in the abdominal cavity of the patient, the end of the in-vitro tube is connected to the drainage bag, the end of the auxiliary tube is provided with a functional interface, and the functional interface can be selectively connected to the irrigation bag and the sampling container. A C-shaped fixing clip is connected to the back of the three-way valve, and the fixing clip is provided with a clamping opening which can clamp the edge of a bed to fix the three-way valve on the bed edge.

[0010] Compared with the prior art, the abdominal drainage assembly capable of collecting drainage fluid adopting the above technical solution has the following beneficial effects: By adopting the abdominal drainage assembly capable of collecting drainage fluid of the utility model, when perfusing irrigation fluid, medical staff connects the functional interface to the irrigation bag, then rotates the valve core to communicate the in-vivo tube with the auxiliary tube, so that the irrigation fluid flows from the irrigation bag to the abdominal cavity of the patient through the abdominal drainage tube; when discharging drainage fluid, the medical staff rotates the valve core to communicate the in-vivo tube with the in-vitro tube, so that the drainage fluid flows from the abdominal cavity of the patient to the drainage bag through the abdominal drainage tube; when collecting drainage fluid, the medical staff connects the functional interface to the sampling container, then rotates the valve core to communicate the in-vivo tube with the auxiliary tube, so that the drainage fluid flows from the abdominal cavity of the patient to the sampling container through the abdominal drainage tube. The abdominal drainage tube of the utility model has the functions of perfusing irrigation fluid and collecting drainage fluid, can effectively reduce the occurrence of specimen contamination, also avoids puncture injury, and is easy to operate.

[0011] Medical staff can clamp the bed edge through the clamping opening of the fixing clip, and fix the three-way valve at different positions on the bed edge as required to keep the three-way valve placed upright.

[0012] Preferably, the three-way valve includes an upper port for connecting to the internal tube, a side port for connecting to the auxiliary tube, and a lower port for connecting to the external tube. The upper, side, and lower ports are respectively located on the top, side, and bottom of the three-way valve, and they intersect at the valve core. The valve core has a T-shaped channel, and by rotating the valve core, the upper port can connect to the side port, or the upper port can connect to the lower port, or the side port can connect to the lower port. The lower port is located below the upright three-way valve, ensuring that the drainage bag is positioned below the patient's abdominal cavity. The side port is located on the side of the upright three-way valve, facilitating the use of the functional interfaces: when connecting the irrigation bag, the auxiliary tube tilts upward, suspending the irrigation bag above the patient's abdominal cavity; when connecting the sampling container, the auxiliary tube hangs downward, allowing the sampling container to be held below the patient's abdominal cavity. When changing the drainage bag, medical staff can turn the valve core to connect the side port and the bottom port, thereby blocking the internal tube connection and preventing the drainage fluid from flowing out of the external tube and the auxiliary tube and causing contamination. The operation is simple.

[0013] Preferably, the three-way valve has an external knob with a circular end face and anti-slip texture on its outer circumference. A "T"-shaped pointer is marked on the knob end face. The valve core is fixed relative to the knob, and the T-shaped channel and the pointer tip point in the same direction. The pointer direction allows medical staff to know the current valve core status, i.e., the alignment position of the T-shaped channel. The anti-slip texture increases the friction on the outer circumference of the knob, making it easier for medical staff to turn the knob to change the valve core status.

[0014] Preferably, the clamping jaws are equipped with magnets at the point where they abut against the side wall of the bed, and the clamping jaws are magnetically secured to the bed edge. The magnets increase the clamping jaws' stability and prevent the bed edge from accidentally detaching from the clamping jaws.

[0015] Preferably, the drainage bag has a bag inlet at the top, which uses a positive pressure connector. The end of the external tube has a fluid outlet, which uses a Luer connector. The fluid outlet and bag inlet are threaded together, and the inner tube of the Luer connector pushes open the piston rod of the positive pressure connector. The Luer connector provides a secure and well-sealed connection, preventing leakage after the fluid outlet and bag inlet are connected. When changing the drainage bag, disconnecting the fluid outlet from the bag inlet will automatically seal the bag inlet, preventing odors from the drainage fluid from contaminating the outside air. Medical staff do not need to manually seal the bag inlet, reducing workload.

[0016] Preferably, the functional interface has a flexible strap on its outer side, and a cap at one end of the strap to cover the functional interface. When the functional interface is not in use, the cap prevents contamination of the interface. The flexible strap secures the cap to the functional interface to prevent loss.

[0017] Preferably, the sample also includes a puncture catheter with a connector and a needle at each end. The sampling container cap has a rubber stopper, through which the needle can puncture the stopper to enter the sampling container. The flushing bag has an infusion tube with an injection connector at the end. The functional interface can be either a threaded connection to the injection connector or a connector. Medical personnel insert the needle into the sampling container by puncturing the rubber stopper. The needle flow is relatively small, and the cap seals the sampling container, preventing excessive drainage from overflowing. The drainage fluid inside the sampling container is not exposed to the outside air, further reducing the risk of sample contamination.

[0018] Preferably, the three-way valve and the retaining clip are detachably connected. Healthcare professionals can install different sized retaining clips on the three-way valve as needed, ensuring the clips can securely grip the bed edge, suitable for bed edges of varying heights. The retaining clips are reusable, reducing costs.

[0019] Preferably, the fixing clip has a shelf attached to its side for temporarily placing blood collection containers. The back of the shelf rests against the side of the bed edge, and the shelf has slots for inserting sampling containers. When collecting drainage fluid, medical staff can simply remove the sampling container from the slot without needing to obtain it elsewhere, thus improving work efficiency.

[0020] Preferably, the shelf and the fixing clip are detachably connected. Healthcare workers can attach the shelf to the fixing clip as needed. The shelf is reusable, reducing costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the abdominal drainage component in the embodiment.

[0022] Figure 2 This is a schematic diagram of the valve core in different states in the embodiment.

[0023] Figure 3 This is a schematic diagram of the structure when the functional interface is connected to the sampling container in the embodiment.

[0024] Figure 4 This is a schematic diagram of the puncture catheter in the embodiment.

[0025] Figure 5 This is a schematic diagram of the structure when the functional interface is connected to the rinsing bag in the embodiment.

[0026] Figure 6 This is a schematic diagram of the structure of the three-way valve, fixing clamp, placement rack and sampling container in the embodiment.

[0027] Figure 7 This is a structural schematic diagram of the front of the fixing clip in the embodiment.

[0028] Figure 8 This is a schematic diagram of the structure on the back of the fixing clip in the embodiment.

[0029] Figure 9 is a schematic structural view of the placement rack in the embodiment.

[0030] Figure 10 is a schematic structural view of the back surface of the three-way valve in the embodiment.

[0031] Figure 11 is a schematic usage view of the three-way valve in the embodiment when fixed on the bed edge.

[0032] Reference signs of the accompanying drawings: 1. Abdominal drainage tube; 10. Liquid outlet interface; 11. Intracorporeal tube; 12. Extracorporeal tube; 13. Auxiliary tube; 14. Functional interface; 15. Sealing cover; 16. Soft band; 2. Drainage bag; 20. Bag interface; 3. Three-way valve; 30. Valve core; 31. Upper port; 32. Side port; 33. Lower port; 34. T-shaped passage; 35. Knob; 36. Anti-slip pattern; 37. Pointer; 38. Recess; 4. Fixing clip; 40. Clip opening; 41. Protruding block; 42. Magnet; 43. Buckle groove; 5. Placement rack; 50. Slot; 51. Buckle block; 6. Irrigation bag; 60. Infusion tube; 61. Liquid injection joint; 7. Sampling container; 70. Tube cap; 71. Rubber stopper; 72. Puncture catheter; 73. Needle; 74. Butt joint; 8. Bed edge. Detailed Description of the Preferred Embodiments

[0033] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended purpose of the utility model, the specific implementation, structure, features and effects of the present utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0034] As shown in Figures 1 to 11 the abdominal drainage assembly capable of retaining drainage fluid comprises an abdominal drainage tube 1, a drainage bag 2, an irrigation bag 6 and a sampling container 7. The drainage bag 2 is used for collecting drainage fluid, the irrigation bag 6 is used for perfusing irrigation fluid, and the sampling container 7 is used for retaining drainage fluid for culture. The abdominal drainage tube 1 is provided with a three-way valve 3. The abdominal drainage tube 1 comprises an intracorporeal tube 11, an extracorporeal tube 12 and an auxiliary tube 13. The intracorporeal tube 11, the extracorporeal tube 12 and the auxiliary tube 13 are all flexible tubes. The intracorporeal tube 11, the extracorporeal tube 12 and the auxiliary tube 13 are respectively connected to the three-way valve 3. A rotatable valve core 30 is arranged in the three-way valve 3. By rotating the valve core 30, the intracorporeal tube 11 is communicated with the auxiliary tube 13, or the intracorporeal tube 11 is communicated with the extracorporeal tube 12. The end of the intracorporeal tube 11 is placed in the abdominal cavity of a patient, the end of the extracorporeal tube 12 is connected to the drainage bag 2, the end of the auxiliary tube 13 is provided with a functional interface 14, and the functional interface 14 can be selectively connected to the irrigation bag 6 and the sampling container 7. The back surface of the three-way valve 3 is connected with a fixing clip 4 in a "C" shape. The fixing clip 4 is provided with a clip opening 40, and the clip opening 40 can clamp and fix the bed edge 8, so that the three-way valve 3 is fixed on the bed edge 8. Reference Figure 5During irrigation, medical staff connect the functional interface 14 to the irrigation bag 6, and then connect the internal tube 11 to the secondary tube 13 by rotating the valve core 30. The irrigation fluid flows from the irrigation bag 6 into the patient's abdominal cavity through the abdominal drainage tube 1. When draining the drainage fluid, medical staff connect the internal tube 11 to the external tube 12 by rotating the valve core 30. The drainage fluid flows from the patient's abdominal cavity into the drainage bag 2 through the abdominal drainage tube 1. (Refer to...) Figure 3 When collecting drainage fluid, medical staff connect the functional interface 14 to the sampling container 7, and then connect the internal tube 11 to the secondary tube 13 by rotating the valve core 30. The drainage fluid flows from the patient's abdominal cavity to the sampling container 7 through the abdominal drainage tube 1. The abdominal drainage tube 1 of this invention has the functions of perfusion and drainage fluid collection, and can effectively reduce the occurrence of specimen contamination, avoid puncture injury, and is easy to operate.

[0035] Among them, medical staff can use the clamp 40 of the fixing clip 4 to fix the bed edge 8, and fix the three-way valve 3 at different positions on the bed edge 8 as needed and keep the three-way valve 3 upright.

[0036] Reference Figure 2 The three-way valve 3 includes an upper port 31 for connecting to the inner tube 11, a side port 32 for connecting to the auxiliary tube 13, and a lower port 33 for connecting to the outer tube 12. The upper port 31, side port 32, and lower port 33 are respectively located on the top, side, and bottom of the three-way valve 3, and they intersect at the valve core 30. The valve core 30 has a T-shaped channel 34. By rotating the valve core 30, the upper port 31 and the side port 32 are connected. Figure 2 (in state a), or the upper port 31 is connected to the lower port 33 ( Figure 2 (middle b state), or the side port 32 is connected to the lower port 33 ( Figure 2 (In the middle c state). The lower port 33 is below the upright three-way valve 3, ensuring that the drainage bag 2 is positioned below the patient's abdominal cavity. The side port 32 is on the side of the upright three-way valve 3, facilitating the use of the functional interface 14: when connecting the irrigation bag 6, the auxiliary tube 13 tilts upward, suspending the irrigation bag 6 above the patient's abdominal cavity; when connecting the sampling container 7, the auxiliary tube 13 hangs downward, allowing the sampling container 7 to be held below the patient's abdominal cavity. When changing the drainage bag 2, medical staff can rotate the valve core 30 to connect the side port 32 with the lower port 33, thus blocking the connection of the internal tube 11 and preventing drainage fluid from flowing out of the external tube 12 and auxiliary tube 13, causing contamination. The operation is simple.

[0037] Reference Figure 6The three-way valve 3 has a knob 35 on its exterior. The knob 35 has a circular end face and anti-slip texture 36 on its outer circumference. A "T"-shaped pointer 37 is marked on the end face of the knob 35. The valve core 30 is fixed relative to the knob 35, and the T-shaped channel 34 and the tip of the pointer 37 point in the same direction. The pointer 37 indicates the current state of the valve core 30, i.e., the alignment position of the T-shaped channel 34. The anti-slip texture 36 increases the friction on the outer circumference of the knob 35, making it easier for medical staff to turn the knob 35 to change the state of the valve core 30.

[0038] Reference Figure 8 The clamping jaw 40 of the fixing clip 4 is equipped with a magnet 42 at the point where it abuts against the side wall of the bed edge 8. The fixing clip 4 and the bed edge 8 are magnetically secured together by the magnet 42. The magnet 42 increases the firmness of the fixing clip 4 and prevents the bed edge 8 from accidentally detaching from the clamping jaw 40 of the fixing clip 4.

[0039] Reference Figure 1 The drainage bag 2 has a bag inlet 20, which is a positive pressure connector. The external tube 12 has a discharge inlet 10, which is a Luer connector. The discharge inlet 10 and the bag inlet 20 are threaded together, with the inner tube of the Luer connector pushing open the piston rod of the positive pressure connector. The Luer connector provides a secure and well-sealed connection, preventing leakage after the discharge inlet 10 is connected to the bag inlet 20. When replacing the drainage bag 2, disconnecting the discharge inlet 10 from the bag inlet 20 will automatically seal the bag inlet 20, preventing odors from the drainage fluid inside the bag 2 from contaminating the outside air. Medical staff do not need to manually seal the bag inlet 20, reducing workload.

[0040] The functional interface 14 is provided with a flexible strap 16 on its outer side, and a cover 15 is provided at the end of the flexible strap 16. The cover 15 can cover the functional interface 14. When the functional interface 14 is not in use, the cover 15 closes the functional interface 14 to prevent the inside of the functional interface 14 from being contaminated. The cover 15 is fixed to the functional interface 14 by the flexible strap 16 to prevent the cover 15 from being lost.

[0041] Reference Figure 3 , Figure 4 and Figure 6 It also includes a puncture catheter 72, with a connector 74 and a needle 73 at each end. A rubber stopper 71 is located on the cap 70 of the sampling container 7. The needle 73 can puncture the rubber stopper 71 to enter the sampling container 7. The flushing bag 6 is equipped with an infusion tube 60, with an injection connector 61 at the end of the infusion tube 60. The functional interface 14 can optionally connect the injection connector 61 and the connector 74 via a threaded connection. Medical personnel insert the needle 73 into the sampling container 7 through the rubber stopper 71. The needle 73 draws a small flow, and the cap 70 seals the sampling container 7, preventing excessive drainage from overflowing. The drainage fluid inside the sampling container 7 is not exposed to the outside air, further reducing the risk of sample contamination.

[0042] Reference Figure 7 and Figure 10 The three-way valve 3 and the fixing clip 4 are detachably connected. The back of the three-way valve 3 has a groove 38, and the front of the fixing clip 4 has a protrusion 41 that matches the groove 38. The protrusion 41 and the groove 38 are threaded together. Medical staff can install fixing clips 4 of different sizes on the three-way valve 3 as needed, ensuring that the clamping jaws 40 of the fixing clip 4 can firmly clamp the bed edge 8, which is suitable for bed edges 8 of different heights. The fixing clip 4 can be used continuously, reducing costs.

[0043] Reference Figure 7 , Figure 9 and Figure 11 The fixing clip 4 has a placement rack 5 attached to its side. The placement rack 5 is used to temporarily place the blood collection container. The back of the placement rack 5 is attached to the side of the bed edge 8. The placement rack 5 has a slot 50, in which the sampling container 7 is inserted. When collecting drainage fluid, medical staff can simply remove the sampling container 7 from the slot 50 without having to go elsewhere to obtain the sampling container 7, thus improving work efficiency.

[0044] The placement rack 5 and the fixing clip 4 are detachably connected. The fixing clip 4 has a groove 43 on its side, and the placement rack 5 has a buckle 51 on its side that matches the groove 43. The buckle 51 is locked into the groove 43. Medical staff can install the placement rack 5 on the fixing clip 4 as needed. The placement rack 5 is reusable, reducing costs.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An abdominal drainage assembly capable of collecting drainage fluid, characterized in that: comprising an abdominal drainage tube (1), a drainage bag (2) for collecting drainage fluid, a irrigation bag (6) for perfusing irrigation fluid, and a sampling container (7) for collecting drainage fluid for culture. The abdominal drainage tube (1) is provided with a three-way valve (3), and the abdominal drainage tube (1) includes an in-vivo tube (11), an in-vitro tube (12) and an auxiliary tube (13). The in-vivo tube (11), the in-vitro tube (12) and the auxiliary tube (13) are respectively connected to the three-way valve (3). A rotatable valve core (30) is arranged inside the three-way valve (3). By rotating the valve core (30), the in-vivo tube (11) is communicated with the auxiliary tube (13), or the in-vivo tube (11) is communicated with the in-vitro tube (12), the end of the in-vivo tube (11) is placed in the abdominal cavity of a patient, the end of the in-vitro tube (12) is connected to the drainage bag (2), the end of the auxiliary tube (13) is provided with a functional interface (14), and the functional interface (14) can be selectively connected to the irrigation bag (6) and the sampling container (7), a "C"-shaped fixing clip (4) is connected to the back of the three-way valve (3), the fixing clip (4) is provided with a clamping opening (40), and the clamping opening (40) can clamp and fix the bed edge (8), so that the three-way valve (3) is fixed on the bed edge (8).

2. The abdominal drainage assembly capable of collecting drainage fluid according to claim 1, characterized in that: The three-way valve (3) includes an upper port (31) for connecting the in-vivo tube (11), a side port (32) for connecting the auxiliary tube (13), and a lower port (33) for connecting the in-vitro tube (12). The upper port (31), the side port (32) and the lower port (33) are respectively arranged on the top, side and bottom of the three-way valve (3), and the upper port (31), the side port (32) and the lower port (33) intersect at the valve core (30). The valve core (30) is provided with a T-shaped passage (34). By rotating the valve core (30), the upper port (31) is communicated with the side port (32), or the upper port (31) is communicated with the lower port (33), or the side port (32) is communicated with the lower port (33).

3. The abdominal drainage assembly capable of collecting drainage fluid according to claim 2, characterized in that: A knob (35) is arranged outside the three-way valve (3). The end face of the knob (35) is circular, and the outer peripheral surface of the knob (35) is provided with anti-slip patterns (36). The end face of the knob (35) is marked with a T-shaped pointer (37). The valve core (30) is relatively fixed to the knob (35), and the T-shaped passage (34) points in the same direction as the tip of the pointer (37).

4. The abdominal drainage assembly capable of collecting drainage fluid according to claim 1, characterized in that: A magnet (42) is arranged at the position where the clamping opening (40) of the fixing clip (4) abuts against the side wall of the bed edge (8), and the fixing clip (4) and the bed edge (8) are fixed by magnetic attraction through the magnet (42).

5. The abdominal drainage assembly capable of collecting drainage fluid according to claim 1, characterized in that: The upper side of the drainage bag (2) is provided with a bag interface (20), the bag interface (20) adopts a positive pressure joint, the end of the in-vitro tube (12) is provided with a liquid outlet interface (10), the liquid outlet interface (10) adopts a Luer connector, the liquid outlet interface (10) is in threaded connection with the bag interface (20), and the inner tube of the Luer connector pushes open the piston core rod of the positive pressure joint.

6. The abdominal drainage assembly capable of retaining drainage fluid according to claim 1, characterized in that: A soft strap (16) is arranged on the outer side of the functional interface (14), the end of the soft strap (16) is provided with a sealing cap (15), and the sealing cap (15) can cover the functional interface (14).

7. The abdominal drainage assembly capable of collecting drainage fluid according to claim 1, characterized in that: It also includes a puncture catheter (72), which has a connector (74) and a needle (73) at both ends. The sampling container (7) has a rubber stopper (71) on its cap (70). The needle (73) can puncture the rubber stopper (71) and enter the sampling container (7). The flushing bag (6) has an infusion tube (60), which has an injection connector (61) at its end. The functional interface (14) can be threaded to connect the injection connector (61) and the connector (74).

8. The abdominal drainage assembly capable of retaining drainage fluid according to claim 1, characterized in that: The three-way valve (3) is detachably connected to the fixing clamp (4).

9. The abdominal drainage assembly capable of collecting drainage fluid according to claim 1, characterized in that: The fixing clip (4) has a shelf (5) for temporarily placing blood collection containers on its side. The back of the shelf (5) is attached to the side of the bed edge (8). The shelf (5) is provided with a slot (50) for inserting sampling containers (7).

10. The abdominal drainage assembly capable of retaining drainage fluid according to claim 9, characterized in that: The placement rack (5) and the fixing clip (4) are detachably connected.

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