Hydrops discharge device for tumor nursing

Abstract

The invention belongs to the technical field of tumor nursing, and particularly relates to an effusion discharge device for tumor nursing, which comprises an effusion cylinder, the top of the effusion cylinder is in threaded connection with a suction cylinder, and the top of the suction cylinder is fixedly connected with a fixed seat; through the arrangement of a pressing block and a rubber strip, friction force of different degrees can be applied to a pressing rod, and the suction speed generated at the effusion position of a patient during sliding of a piston is adjusted, so that adjustment is conducted according to the effusion type and the effusion discharge amount of the effusion position of the patient, and manual suction experience of medical staff is not needed; through the arrangement of the positioning block and the positioning groove, when stable negative pressure is needed, the rotating cap is fixed at a needed angle, the friction force between the rubber strip and the pressing rod is fixed, the rotating cap is rapidly pressed down and rotated, the rotating cap is loosened after being aligned with a needed gear, and then the negative pressure for effusion drainage can be temporarily adjusted.

Description

Technical Field

[0001] This invention belongs to the field of tumor care technology, specifically a fluid drainage device for tumor care. Background Technology

[0002] Tumor care fluid drainage devices are medical devices specifically designed for pathological fluid accumulation in the pleural cavity, abdominal cavity, and other areas of cancer patients. Their function is to safely and effectively drain abnormally accumulated fluid from the body, helping to alleviate patient discomfort, reduce the risk of complications, and provide necessary fluid management for subsequent treatment. Currently, most tumor care fluid drainage devices are syringes or balloons. Medical staff use syringes to draw out the fluid accumulated at the tumor site or press the balloon to create negative pressure for suction.

[0003] Since manual operation relies on the user's strength and frequency, it requires skilled operation. When medical staff lack experience, the negative pressure during drainage of pleural effusion in tumor care devices can be unstable. Excessive negative pressure may damage surrounding tissues or cause pain to the patient, while insufficient negative pressure will result in incomplete aspiration, affecting the treatment effect. Furthermore, for patients with pleural effusion due to tumors, unstable negative pressure during drainage may pose a potential risk of causing re-expansion pulmonary edema or circulatory fluctuations. Therefore, this invention provides a pleural effusion drainage device for tumor care. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a fluid drainage device for tumor care.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a tumor care fluid drainage device, including a fluid collection cylinder, a suction cylinder threadedly connected to the top of the fluid collection cylinder, a fixed base fixedly connected to the top of the suction cylinder, a pressing rod slidably connected to the middle of the fixed base, a piston slidably connected inside the suction cylinder, a bottom end of the pressing rod fixedly connected to the piston, a spring provided between the top of the piston and the fixed base, a suction adjustment mechanism provided on the top of the fluid collection cylinder and the fixed base, the suction adjustment mechanism including a sliding groove opened on the fixed base, a sliding plate movably connected inside the sliding groove, the top end of the pressing rod passing through the sliding plate, four pressure blocks rotatably connected at equal intervals to the top of the sliding plate, metal springs fixedly connected to the inner side of the four pressure blocks, rubber strips fixedly connected to the side of the four metal springs away from the pressure blocks, and a fixed shaft fixedly connected to the top of one side of each of the four pressure blocks.

[0006] Preferably, a rotating cap is rotatably connected to the top of the sliding plate, the rotating cap is rotatably connected to the first sliding groove, and a rotating disk is fixedly connected to the inner top of the rotating cap. Four arc-shaped grooves are equidistantly opened on the first rotating disk, and the top ends of the four fixed shafts are slidably connected to the arc-shaped grooves.

[0007] Preferably, limit blocks are fixedly connected to both sides of the sliding plate, and two limit grooves are symmetrically opened in the fixed seat. The two limit grooves are connected to the sliding groove, and the two limit blocks are slidably connected to the limit grooves. A second spring is provided between the bottom of the sliding plate and the inner bottom of the limit groove.

[0008] Preferably, two positioning blocks are symmetrically fixedly connected to the side of the rotating cap, and two sets of positioning grooves are symmetrically opened inside the fixing seat. The positioning grooves are arranged in groups of six, and the two positioning blocks are slidably connected to the positioning grooves.

[0009] Preferably, the top of the rotating cap is symmetrically fixedly connected to two pointers, and the top of the fixed base is symmetrically provided with two sets of scale lines, with six scale lines forming a group.

[0010] Preferably, a puncture tube is fixedly connected to the side of the liquid collection cylinder.

[0011] Preferably, the fixed base is provided with a release mechanism, which includes a rotating groove formed in the fixed base, a rotating disk II rotatably connected in the rotating groove, twelve sliding grooves II are equally spaced in the fixed base, each of the twelve sliding grooves II has a slider slidably connected in it, and each of the twelve sliding grooves II is connected to the rotating groove, twelve guide grooves are equally spaced on the rotating disk II, and a guide shaft is fixedly connected to the bottom of the end of each of the twelve sliders away from the pressing rod, and each of the twelve guide shafts is slidably connected to the guide groove, and an annular groove is formed on the surface of the pressing rod, with the twelve sliders engaging with the annular groove.

[0012] Preferably, the side of the fixed base is provided with a toggle groove, which is connected to the rotation groove. The side of the fixed base is symmetrically provided with two locking grooves centered on the toggle groove. Both locking grooves are connected to the toggle groove. A lever is provided in the toggle groove, and the lever is rotatably connected to the side of the rotating disk.

[0013] Preferably, a torsion spring is provided at the connection between the lever and the rotating disk II.

[0014] The beneficial effects of this invention are as follows: By setting up the pressure block and rubber strip, different degrees of friction can be applied to the pressure rod, adjusting the speed at which the pressure rod slides when the spring contracts, and changing the speed at which the pressure rod drives the piston to slide. This allows for adjustment of the suction speed generated at the patient's fluid accumulation site when the piston slides, thus adjusting according to the type of fluid accumulation and the amount of fluid to be drained. This eliminates the need to rely on the manual suction experience of medical staff, making it safer. By setting up positioning blocks and positioning grooves, the rotating cap can be fixed at multiple angles. When a stable negative pressure is required, the rotating cap can be fixed at the required angle, which fixes the friction between the rubber strip and the pressing rod. When the negative pressure needs to be adjusted during the suction process, quickly press down on the rotating cap and rotate it to align it with the required position before releasing it. This will temporarily adjust the negative pressure of the liquid discharge. The operation is simple, and the need to press down on the rotating cap for adjustment reduces the risk of accidental contact during the liquid discharge process. By using the lever, pressing the lever into the suction cylinder causes the piston to expel the air from the cylinder. Pressing the lever down and sliding it into another locking slot will lock the lever in place. When suction is needed, pressing the lever again and sliding it back into the initial locking slot will release the lever and begin suctioning the fluid from the patient's affected area. This makes the fluid drainage device more convenient to use, and the torsion spring further reduces the risk of accidental activation during fluid drainage, improving safety. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional view of the overall structure of the present invention; Figure 2 This is the invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a three-dimensional cross-sectional view of the main structure of the present invention; Figure 4 This is the invention Figure 3 Enlarged view of point B in the middle; Figure 5 This is a three-dimensional schematic diagram of the sliding plate and its top structure of the present invention; Figure 6 This is a schematic diagram of the fixed shaft and arc groove structure of the present invention in use; Figure 7 This is a three-dimensional schematic diagram of the positioning groove structure of the present invention; Figure 8 This is a schematic diagram of the slider and annular groove of the present invention in use; Figure 9 This is a schematic diagram of the sliding groove II and the slider structure of the present invention in use; Figure 10 This is a schematic diagram of the guide groove and guide shaft structure of the present invention in use; In the picture: 1. Collection cylinder; 2. Suction cylinder; 3. Fixing base; 4. Pressing rod; 5. Piston; 6. Spring 1; 7. Puncture tube; 8. Suction adjustment mechanism; 81. Sliding groove one; 82. Sliding plate; 83. Pressure block; 84. Metal spring; 85. Rubber strip; 86. Fixed shaft; 87. Rotating cap; 88. Rotating disk one; 89. Arc groove; 810. Limiting block; 811. Limiting groove; 812. Spring two; 813. Positioning block; 814. Positioning groove; 815. Pointer; 816. Scale line; 9. Release mechanism; 91. Rotating groove; 92. Rotating disk II; 93. Sliding groove II; 94. Slider; 95. Guide groove; 96. Guide shaft; 97. Annular groove; 98. Actuating groove; 99. Locking groove; 910. Lever. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1 to 10 As shown, the present invention provides a technical solution: a tumor care fluid drainage device, comprising a fluid collection cylinder 1, a suction cylinder 2 threadedly connected to the top of the fluid collection cylinder 1, a fixed base 3 fixedly connected to the top of the suction cylinder 2, a pressing rod 4 slidably connected to the middle of the fixed base 3, a piston 5 slidably connected inside the suction cylinder 2, the bottom end of the pressing rod 4 fixedly connected to the piston 5, a spring 6 disposed between the top of the piston 5 and the fixed base 3, the two ends of the spring 6 being fixedly connected to the piston 5 and the fixed base 3 respectively, a puncture tube 7 fixedly connected to the side of the fluid collection cylinder 1, and a suction adjustment mechanism 8 disposed on the top of the fixed base 3 of the fluid collection cylinder 1. The suction adjustment mechanism 8 includes a sliding groove 81 formed on the fixed base 3, a sliding plate 82 movably connected inside the sliding groove 81, the top end of the pressing rod 4 passing through the sliding plate 82, and the sliding plate... Four pressure blocks 83 are rotatably connected at equal intervals to the top of 82. All pressure blocks 83 are arc-shaped, and the inner curvature is the same as that of the pressing rod 4. Metal springs 84 are fixedly connected to the inner side of the four pressure blocks 83. When not compressed, the metal springs 84 deform and bulge towards the pressing rod 4. Rubber strips 85 are fixedly connected to the side of the four metal springs 84 away from the pressure blocks 83. Fixed shafts 86 are fixedly connected to the top of one side of each of the four pressure blocks 83. The fixed shafts 86 are located on the side away from the rotatable connection between the pressure blocks 83 and the sliding plate 82. Rotating caps 87 are rotatably connected to the top of the sliding plate 82. Rotating caps 87 are rotatably connected to the sliding groove 81. Rotating disk 88 is fixedly connected to the inner top of rotating cap 87. Four arc-shaped grooves 89 are equidistantly opened on the rotating disk 88. The top ends of the four fixed shafts 86 are slidably connected to the arc-shaped grooves 89.

[0019] With the above technical solution, when the rotating cap 87 does not drive the rotating disk 88 to rotate, and the fixed shaft 86 is located in the arc groove 89 on the side away from the pressing rod 4, the side of the pressure block 83 connected to the fixed shaft 86 is located at the farthest point from the pressing rod 4 within the range of motion of the pressure block 83. At this time, under the action of the metal spring 84 protruding towards the pressing rod 4, only part of the rubber strip 85 contacts the pressing rod 4, generating friction on the pressing rod 4. When the pressing rod 4 slides upward under the action of the spring 6 contraction, the pressing rod 4 is subjected to the friction of the rubber strip 85 in this state. The smallest diameter ensures faster suction speed and stronger suction. When medical staff rotate the cap 87 by hand, the rotating disc 88 drives the arc groove 89 to rotate. The arc groove 89 presses against the fixed shaft 86, causing the fixed shaft 86 to approach the pressing rod 4. This causes the pressure block 83 to turn towards the pressing rod 4 and press more metal springs 84 and rubber strips 85 onto the surface of the pressing rod 4. This gradually increases the friction on the surface of the pressing rod 4, causing the speed of the pressing rod 4 to gradually slow down when it is driven by the contraction of the spring 6. This achieves the effect of adjusting the suction speed and suction force.

[0020] Specifically, such as Figures 1 to 8 As shown, limit blocks 810 are fixedly connected to both sides of the sliding plate 82. Two limit grooves 811 are symmetrically formed inside the fixed base 3, and the two limit grooves 811 are connected to the first sliding groove 81. Both limit blocks 810 are slidably connected to the limit grooves 811. The limit blocks 810 and the limit grooves 811 prevent the sliding plate 82 from rotating within the first sliding groove 81. A second spring 812 is provided between the bottom of the sliding plate 82 and the inner bottom of the limit groove 811. Two positioning blocks 813 are symmetrically fixedly connected to the side of the rotating cap 87. The interior of the fixed base 3... Two sets of positioning slots 814 are symmetrically provided, with six positioning slots 814 per set. Each set of positioning slots 814 is equidistantly arranged in the fixed base 3. Two positioning blocks 813 are slidably connected to the positioning slots 814. Two pointers 815 are symmetrically fixedly connected to the top of the rotating cap 87. Two sets of scale lines 816 are symmetrically arranged on the top of the fixed base 3. The two sets of scale lines 816 are centrally symmetrical about the pressing rod 4. Six scale lines 816 are per set. Each set of scale lines 816 is equidistantly arranged on the fixed base 3, and the spacing is the same as the spacing of the positioning slots 814.

[0021] Through the above technical solution, the positioning block 813 and the positioning groove 814 can lock the rotating cap 87, thereby locking the rotating disk 88. When the rotating disk 88 rotates, it drives the pressure block 83 to rotate through the arc groove 89. After adjusting the friction between the rubber strip 85 and the pressing rod 4, the friction between the rubber strip 85 and the pressing rod 4 is maintained by fixing the rotating disk 88. During adjustment, the medical staff presses the rotating cap 87 downward, causing the rotating cap 87 to press the sliding plate 82 and slide downward in the sliding groove 81, and press the spring 812, so that the positioning block 813 slides out of the positioning groove 814. At this time, the rotating cap 87 can rotate. The medical staff rotates the rotating cap 87. After the pointer 815 points to the appropriate position on the scale line 816, release the hand pressing the rotating cap 87. This causes the spring 812 to push the sliding plate 82 upwards within the sliding groove 81 under its elastic force, and drives the positioning block 813 into the corresponding positioning groove 814, thus re-fixing the rotating cap 87. This maintains the friction between the rubber strip 85 and the pressing rod 4. The suction adjustment mechanism 8 is an adjustable limiter. By sliding the sliding plate 82 within the sliding groove 81, the termination position of the pressing rod 4 in its rebound stroke is precisely set. Specifically, the rotating cap 87 drives the sliding plate 82 to rise and fall, aligning its upper edge with the negative pressure preset positions at different scales on the top of the fixed base 3. Then, the pressing rod 4 is pressed down to the bottom and locked by the release mechanism 9. During this process, the spring 6 stores potential energy. After release, the piston 5 rebounds under the drive of the spring 6. When the top of the pressing lever 4 rises to contact the sliding plate 82, the sliding plate 82 acts as a mechanical stop, immediately preventing the pressing lever 4 from moving further. At this point, the piston 5 stops at a precise position inside the suction cylinder 2, which creates a constant and predictable negative pressure value inside the effusion cylinder 1. This ensures overall negative pressure stability, and a simple safety valve can be integrated into the top of the suction cylinder 2 to automatically release pressure when the negative pressure exceeds a set safety threshold, preventing over-aspiration due to mechanical failure and increasing patient safety.

[0022] Specifically, such as Figures 1 to 4 as well as Figures 8 to 10 As shown, the fixed base 3 is equipped with a release mechanism 9. The release mechanism 9 includes a rotating groove 91 opened in the fixed base 3. A rotating disk 92 is rotatably connected in the rotating groove 91. Twelve sliding grooves 93 are equidistantly opened in the fixed base 3. A slider 94 is slidably connected in each of the twelve sliding grooves 93. Both the sliding grooves 93 and the sliders 94 are cuboids. All twelve sliding grooves 93 are connected to the rotating groove 91. Twelve guide grooves 95 are equidistantly opened on the rotating disk 92. A guide shaft 96 is fixedly connected to the bottom of the end of each of the twelve sliders 94 away from the pressing rod 4. All twelve guide shafts 96 are slidably connected to the guide grooves 95. An annular groove 97 is opened on the surface of the pressing rod 4. The twelve sliders 94 and the annular groove 97 form a snap-fit ​​engagement.

[0023] With the above technical solution, when the pressing rod 4 is pressed to the bottom, the piston 5 is located at the bottom of the suction cylinder 2, and the spring 6 is stretched to the maximum. At this time, the slider 94 is stuck in the annular groove 97, making it impossible for the pressing rod 4 to slide. When the piston 5 is located in the rotating disk 92 of the suction cylinder 2, it will squeeze the guide shaft 96 through the guide groove 95, thereby driving the guide shaft 96 to slide. When the guide shaft 96 slides away from the pressing rod 4 in the guide groove 95, the guide shaft 96 drives the slider 94 to slide away from the pressing rod 4 in the sliding groove 93, thereby driving the slider 94 to slide out of the annular groove 97. After the annular groove 97 is no longer restricted by the slider 94, it can slide upward out of the suction cylinder 2 under the action of the spring 6, thereby starting to extract the air in the effusion cylinder 1. Thus, through the negative pressure in the effusion cylinder 1 and the action of the puncture tube 7, the effusion in the patient's body is drained.

[0024] Specifically, such as Figure 1 , Figure 2 as well as Figures 8 to 10 As shown, a toggle groove 98 is provided on the side of the fixed base 3. The toggle groove 98 is connected to the rotation groove 91. Two locking grooves 99 are symmetrically provided on the side of the fixed base 3 with the toggle groove 98 as the center. Both locking grooves 99 are connected to the toggle groove 98. A lever 910 is provided in the toggle groove 98. The lever 910 is rotatably connected to the side of the rotating disk 92. A torsion spring is provided at the connection between the lever 910 and the rotating disk 92. When the torsion spring is naturally extended, the lever 910 rotates upward and is locked in the locking groove 99.

[0025] With the above technical solution, when the lever 910 is located in the locking groove 99 shown in the figure, the slider 94 is stuck in the annular groove 97. The medical staff presses the lever 910 down, so that it slides into the actuation groove 98, and then continues to push the lever 910 to slide to the other side, so that the lever 910 drives the rotating disk 92 to rotate, thereby squeezing the guide shaft 96 through the guide groove 95 to slide away from the pressing rod 4, and then driving the slider 94 to slide out of the annular groove 97. At this time, after the medical staff releases their hands, the lever 910 will rotate upward under the action of the torsion spring and be stuck into another locking groove 99 for fixation.

[0026] In use, medical staff hold the fixed base 3 and press down on the pressing rod 4, causing the pressing rod 4 to push the piston 5 towards the bottom of the suction cylinder 2 and stretch the spring 6, thereby squeezing out the air inside the suction cylinder 2. After the piston 5 slides to the bottom of the suction cylinder 2, the medical staff press down on the lever 910, causing it to slide into the actuating groove 98, and then continue to push the lever 910 to slide to the other side, causing the lever 910 to drive the rotating disk 92 to rotate, thereby squeezing the guide shaft 96 through the guide groove 95 towards the pressing rod 4, and thus driving the slider 94. The pressing rod 4 is fixed in the annular groove 97, keeping the spring 6 in a stretched state. Then, the medical staff presses down on the rotating cap 87, causing it to press against the sliding plate 82, making it slide downwards within the sliding groove 81 and pressing against the spring 812. This causes the positioning block 813 to slide out of the positioning groove 814. At this point, the rotating cap 87 can rotate. The medical staff rotates the rotating cap 87, causing the rotating disk 88 to rotate, which in turn causes the arc-shaped groove 89 to rotate. The arc-shaped groove 89 presses against the fixed shaft 86, bringing the fixed shaft 86 closer to the pressing rod 4, thereby moving the pressure block 83. The pressure lever 4 is turned so that more metal springs 84 and rubber strips 85 are pressed against its surface, gradually increasing the friction on the surface until the pointer 815 points to the appropriate position on the scale 816. Then, the medical staff thread the suction cylinder 2 onto the effusion cylinder 1 and connect the puncture tube 7 to the puncture needle. After the puncture needle is inserted into the effusion site, the medical staff press the lever 910 downwards again, causing it to slide into the actuating groove 98, and continue to push the lever 910 to the other side, causing the lever 910 to rotate the rotating disk 92. Thus, the guide shaft 96 is pushed away from the pressing rod 4 by the guide groove 95, which in turn drives the slider 94 to slide out of the annular groove 97. After the slider 94 slides out of the annular groove 97, the pressing rod 4 can slide, so the spring 6 begins to contract and drives the piston 5 to slide upward in the suction cylinder 2, thereby starting to extract the air in the effusion cylinder 1. Through the negative pressure in the effusion cylinder 1, the effusion in the patient's body is discharged and the effusion in the patient's body is drawn into the effusion cylinder 1. After the suction is completed, the suction cylinder 2 can be unscrewed from the effusion cylinder 1 to process the liquid in the effusion cylinder 1.

[0027] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0028] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for draining effusion in tumor care, characterized in that, The system includes a liquid collection cylinder (1), a suction cylinder (2) is threadedly connected to the top of the liquid collection cylinder (1), a fixed seat (3) is fixedly connected to the top of the suction cylinder (2), a pressing rod (4) is slidably connected to the middle of the fixed seat (3), a piston (5) is slidably connected inside the suction cylinder (2), the bottom end of the pressing rod (4) is fixedly connected to the piston (5), a spring (6) is provided between the top of the piston (5) and the fixed seat (3), and a suction adjustment mechanism (8) is provided on the top of the liquid collection cylinder (1) and the fixed seat (3). The suction adjustment mechanism (8) includes a sliding groove (81) opened on the fixed base (3). A sliding plate (82) is movably connected inside the sliding groove (81). The top end of the pressing rod (4) passes through the sliding plate (82). Four pressure blocks (83) are equidistantly rotatably connected to the top of the sliding plate (82). Metal springs (84) are fixedly connected to the inner side of the four pressure blocks (83). Rubber strips (85) are fixedly connected to the side of the four metal springs (84) away from the pressure blocks (83). A fixed shaft (86) is fixedly connected to the top of one side of each of the four pressure blocks (83).

2. The tumor care fluid drainage device according to claim 1, characterized in that, The top of the sliding plate (82) is rotatably connected to a rotating cap (87), which is rotatably connected to a sliding groove (81). The top of the rotating cap (87) is fixedly connected to a rotating disk (88), which has four arc-shaped grooves (89) equidistantly spaced on it. The top ends of the four fixed shafts (86) are slidably connected to the arc-shaped grooves (89).

3. The tumor care fluid drainage device according to claim 2, characterized in that, Both sides of the sliding plate (82) are fixedly connected to limit blocks (810). Two limit grooves (811) are symmetrically opened in the fixed seat (3). The two limit grooves (811) are connected to the first sliding groove (81). The two limit blocks (810) are slidably connected to the limit grooves (811). A second spring (812) is provided between the bottom of the sliding plate (82) and the inner bottom of the limit groove (811).

4. The tumor care fluid drainage device according to claim 3, characterized in that, The rotating cap (87) has two symmetrically fixedly connected positioning blocks (813) on its side. The fixed base (3) has two sets of symmetrically opened positioning grooves (814) inside. The positioning grooves (814) are six in a group, and the two positioning blocks (813) are slidably connected to the positioning grooves (814).

5. The tumor care fluid drainage device according to claim 4, characterized in that, The top of the rotating cap (87) is symmetrically fixed with two pointers (815), and the top of the fixed base (3) is symmetrically provided with two sets of scale lines (816), with six scale lines (816) forming a group.

6. The tumor care fluid drainage device according to claim 1, characterized in that, A puncture tube (7) is fixedly connected to the side of the liquid collection cylinder (1).

7. A tumor care fluid drainage device according to claim 5, characterized in that, The fixed base (3) is provided with a release mechanism (9). The release mechanism (9) includes a rotating groove (91) opened in the fixed base (3). A rotating disk (92) is rotatably connected in the rotating groove (91). Twelve sliding grooves (93) are equally spaced in the fixed base (3). Sliding blocks (94) are slidably connected in each of the twelve sliding grooves (93). The twelve sliding grooves (93) are all connected to the rotating groove (91). Twelve guide grooves (95) are equally spaced on the rotating disk (92). A guide shaft (96) is fixedly connected to the bottom of the end of each of the twelve sliders (94) away from the pressing rod (4). The twelve guide shafts (96) are slidably connected to the guide grooves (95). An annular groove (97) is opened on the surface of the pressing rod (4). The twelve sliders (94) and the annular groove (97) form a snap-fit ​​engagement.

8. A tumor care fluid drainage device according to claim 7, characterized in that, The fixed base (3) has a toggle groove (98) on its side, which is connected to the rotation groove (91). The fixed base (3) has two locking grooves (99) symmetrically arranged on its side with the toggle groove (98) as the center. Both locking grooves (99) are connected to the toggle groove (98). A lever (910) is provided in the toggle groove (98), which is rotatably connected to the side of the rotating disk (92).

9. A tumor care fluid drainage device according to claim 8, characterized in that, A torsion spring is provided at the connection between the lever (910) and the rotating disk (92).

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