ICU clinical drainage device for intensive care unit and method of use thereof

CN122499381APending Publication Date: 2026-08-04XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-06
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

现有的引流装置通常依靠负压系统实现引流,但在实际临床使用中,引流管路容易因血块、组织碎片或粘稠液体而发生堵塞,导致引流中断,增加感染风险和患者痛苦

Benefits of technology

0.本发明通过设有凸轮组件与平移组件,有利于利用多个凸轮件对引流管体进行周期性挤压形成局部高压,依次推动或碾碎血块等堵塞物,配合负压持续吸走,实现自动化疏通,避免手动操作风险与污染。

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Abstract

This invention relates to the field of drainage device technology, and more specifically discloses a drainage device for clinical use in ICU and its method of use, including a support assembly with a weighing assembly hanging on it; two turning pipes are connected through the top of the weighing assembly; a movable stop for providing support at different pipe diameters and a straightening assembly for straightening the drainage tube are slidably connected to the top of the support assembly; a movable assembly is installed on one side of the support assembly; multiple translational assemblies are installed above the movable assembly; and a cam assembly is provided on one side of the translational assembly. This invention, by providing the cam assembly and translational assembly, facilitates the use of multiple cams to periodically compress the drainage tube, creating localized high pressure, sequentially pushing or crushing blood clots and other blockages, and continuously suctioning them away with negative pressure, achieving automated unblocking and avoiding the risks and contamination of manual operation.
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Description

Technical Field

[0001] This invention relates to the field of drainage device technology, and more specifically to a drainage device for clinical use in ICU and its method of use. Background Technology

[0002] Drainage devices are commonly used medical instruments in ICUs to drain fluid, blood, or secretions from a patient's body. Existing drainage devices typically rely on negative pressure systems for drainage; however, in clinical use, drainage lines are prone to blockage by blood clots, tissue fragments, or viscous fluids, leading to drainage interruption, increased infection risk, and patient discomfort. Some devices attempt to alleviate blockage through manual squeezing or flushing, but manual squeezing is difficult to control, flushing can introduce contamination, and continuous, automated cleaning of the lines is not possible.

[0003] On the other hand, ICU clinical surgical situations are complex and diverse, and different surgeries require different diameters of drainage tubes. However, most existing drainage devices can only be adapted to a single diameter and cannot adjust the support and compression structure according to the actual diameter. This results in poor adaptability to drainage tubes of different diameters, affecting the drainage effect and surgical convenience. This has become the second technical problem that urgently needs to be solved.

[0004] Furthermore, existing devices generally lack real-time monitoring and automatic switching capabilities for drainage volume, often requiring a pause in drainage when changing collection containers, thus disrupting treatment continuity. Simultaneously, bends in the drainage tubing can create flow resistance, further increasing the risk of blockage. Therefore, there is an urgent need for an ICU clinical drainage device that can automatically clear blockages and adapt to different tubing diameters. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a drainage device for clinical use in ICU intensive care unit to solve the problems existing in the background art.

[0006] This invention provides the following technical solution: a drainage device for clinical use in ICU, comprising a support assembly, on which a weighing assembly is hung; two bend pipes are connected through the top of the weighing assembly, and the two bend pipes are connected through a tee; a sealing assembly is provided on one side of each bend pipe; a movable stop for providing support under different pipe diameters and a straightening assembly for straightening the drainage tube are slidably connected to the top of the support assembly; a drainage tube is connected through the upper end of the tee; a movable assembly is installed on one side of the support assembly; multiple translational assemblies are installed above the movable assembly; a cam assembly for rotating and squeezing the drainage tube to clear blockages is provided on one side of the translational assembly; a negative pressure assembly is provided inside the bend pipe, and the negative pressure assembly is located at the bottom of the sealing assembly; the movable stop has an adjustable electrically telescopic stop to fit drainage tubes of different diameters; the cam assembly forms local high pressure by periodically squeezing the drainage tube to push or crush blockages; Furthermore, the movable stop includes a first motor, the housing of which is fixedly connected to the top of the working plate of the support assembly; a gear is fixedly connected to the shaft of the first motor; a rack is meshed with the bottom of the gear; the electric telescopic stop is fixedly connected to the inner side of the rack; a first T-shaped block is fixedly connected to the bottom of the electric telescopic stop; the first T-shaped block is slidably connected to a first T-shaped groove on the working plate, and the rack is also slidably connected to the first T-shaped groove.

[0007] Furthermore, the straightening assembly includes a second hydraulic cylinder, the cylinder body of which is fixedly connected to a second T-slot on the working plate of the support assembly; a second T-block is fixedly connected to the piston rod of the second hydraulic cylinder; a U-shaped plate is fixedly connected to the top of the second T-block; and the second T-block is slidably connected to the second T-slot.

[0008] Furthermore, the moving component includes a second motor, the shaft of which is fixedly connected to a screw; one side of the screw is helically connected to a sliding block; the other side of the sliding block is slidably connected to a guide block; the guide block and the upper and lower ends of the screw are respectively rotatably connected to support frames, and the two support frames are fixedly connected by a connecting plate; the lower support frame is fixedly connected to the support base plate of the support component, and the housing of the second motor is fixedly connected to the upper support frame.

[0009] Furthermore, the translation component includes multiple third hydraulic cylinders. The cylinder body of the first third hydraulic cylinder is fixedly connected to the top of the sliding block of the moving component. The piston rod of the third hydraulic cylinder is fixedly connected to the moving block, and the cylinder bodies of the remaining third hydraulic cylinders are fixedly connected to the moving block. A fourth hydraulic cylinder is fixedly connected to the side of the moving block, and the fourth hydraulic cylinder is perpendicular to the third hydraulic cylinder. The piston rod of the fourth hydraulic cylinder is fixedly connected to a mounting box. The third motor housing of the cam component is fixedly connected to the mounting box.

[0010] Furthermore, the cam assembly includes a third motor, the shaft of which is fixedly connected to a cam member; the major diameter of the cam member is used to press the drainage tube body of the drainage tube, and the minor diameter of the cam member is used to move away from the drainage tube body.

[0011] Furthermore, the weighing assembly includes a receiving cylinder with an external through hole at its top; a protruding arc block is fixedly connected to the outer side of the receiving cylinder, and the protruding arc block hangs above the gripper of the support assembly; a pressure-bearing sealing plate is slidably and sealingly connected inside the receiving cylinder; a telescopic rod is fixedly connected between the pressure-bearing sealing plate and the bottom of the receiving cylinder; a spring is sleeved on the outer side of the telescopic rod, and the two ends of the spring are fixedly connected to the bottom of the pressure-bearing sealing plate and the bottom of the receiving cylinder, respectively; a displacement sensor is fixedly connected to the bottom of the receiving cylinder, and the displacement sensor is located inside the spring.

[0012] Furthermore, the sealing assembly includes a first hydraulic cylinder, the piston rod of which is fixedly connected to a stop block; the turning pipe includes a turning pipe body, the bottom side wall of which is provided with an insertion groove, and the stop block is slidably sealed to the insertion groove; the negative pressure assembly includes a fourth motor, the shaft of which is fixedly connected to a blower fan, and the housing of which is fixedly connected to the inner wall of the turning pipe body; the drainage pipe includes a drainage pipe body, a front force ring, a rear force ring, and a needle, the front force ring and the rear force ring being fixedly connected to the drainage pipe body in sequence, the needle being fixedly connected to the front end of the drainage pipe body, and the opening of the U-shaped plate being larger than the diameter of the drainage pipe body but smaller than the outer diameter of the front and rear force rings.

[0013] A method for using a drainage device in ICU clinical settings includes the following steps: S1. The second cylinder of the straightening assembly drives the U-shaped plate, pushing the rear and front force rings to straighten the drainage tube; the moving assembly adjusts the height of the cam assembly, and the translation assembly adjusts the spacing between the cam components; the electric telescopic stop of the moving stop fits against the drainage tube body. S2. Activate the first cylinder of the sealing component to close one bend in the pipe and open the other; activate the fourth motor of the negative pressure component to drive the blower fan to generate negative pressure, and the accumulated liquid enters the receiving cylinder through the needle, drainage tube, and tee. S3. The third motor of the starting cam assembly drives the cam components to rotate, periodically squeezing the drainage tube along its long diameter, creating localized high pressure to push or crush the blockage; multiple cam components squeeze sequentially to prevent the pressure wave from rebounding, pushing the blockage to the receiving cylinder. S4. As the liquid volume increases, the pressure sealing plate of the weighing component compresses the spring to contract, and the displacement sensor monitors the descent height. After the receiving cylinder is full, the sealing component switches to another turning pipe and receiving cylinder to continue the drainage.

[0014] The technical effects and advantages of this invention are as follows: 0. The present invention, by providing a cam assembly and a translation assembly, facilitates the use of multiple cam components to periodically squeeze the drainage tube body to form local high pressure, thereby sequentially pushing or crushing blockages such as blood clots, and continuously suctioning them away with negative pressure, achieving automated unblocking and avoiding the risks and contamination of manual operation.

[0015] 0. The present invention, by providing a movable stop and a straightening component, facilitates the automatic adjustment and fit of the electrically telescopic stop according to the diameter of the drainage tube, providing support. At the same time, the straightening component straightens the tube to reduce bending resistance, adapting to the tube diameter required for different surgeries and improving the drainage effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a schematic diagram of the weighing component of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the sealing component and the negative pressure component of the present invention inside the turning pipe; Figure 5 This is a schematic diagram of the assembly structure of the movable stop and the straightening assembly of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the straightening component and the drainage tube of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the moving component, translation component, and cam component of the present invention.

[0017] The attached figures are labeled as follows: 1. Support assembly; 101. Support base plate; 102. Working plate; 103. Gripper; 104. First T-slot; 105. Second T-slot; 2. Weighing assembly; 201. Receiving cylinder; 202. External through hole; 203. Protruding arc block; 204. Pressure-bearing sealing plate; 205. Telescopic rod; 206. Spring; 207. Displacement sensor; 3. Sealing assembly; 301. First hydraulic cylinder; 302. Stop block; 4. Moving stop; 401. First motor; 402. Gear; 403. Rack; 404. Electric telescopic stop block; 405. First T-block; 5. Straightening assembly; 501. Second hydraulic cylinder; 502. U-shaped plate; 503. 6. T-shaped block; 7. Moving component; 8. Second motor; 9. Screw; 10. Sliding block; 11. Guide block; 12. Support frame; 13. Connecting plate; 14. Translation component; 15. Third cylinder; 16. Moving block; 17. Fourth cylinder; 18. Mounting box; 19. Cam assembly; 10. Third motor; 10. Cam component; 11. Negative pressure component; 12. Fourth motor; 13. Blower fan; 14. Tee; 15. Drainage pipe fitting; 16. Drainage pipe body; 17. Front force ring; 18. Rear force ring; 19. Needle; 10. Turning pipe fitting; 11. Turning pipe body; 11. Insertion slot. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The ICU clinical drainage device and its usage method involved in the present invention are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figure 1 , Figure 2 and Figures 4-7This invention provides a drainage device for clinical use in ICU and its method of use, including a support assembly 1. The support assembly 1 includes a support base plate 101, a working plate 102 fixedly connected to the top of the support base plate 101, two grippers 103 fixedly connected to the side wall of the working plate 102, a second T-slot 105 and a first T-slot 104 provided on the top of the working plate 102, the first T-slot 104 and the second T-slot 105 being perpendicular to each other, a weighing assembly 2 hanging above the grippers 103, and a bending pipe 12 connected through the top of the weighing assembly 2. The bend pipe 12 is connected through the two lower ends of the tee 10. A sealing component 3 is provided on one side of the bend pipe 12. A movable stop 4 is slidably connected to the top of the working plate 102. Two straightening components 5 are slidably connected inside the second T-slot 105. A drainage pipe 11 is connected through the upper end of the tee 10. A movable component 6 is installed on one side of the working plate 102. Multiple translation components 7 are installed above the movable component 6. A cam component 8 is provided on one side of the translation component 7. A negative pressure component 9 is provided inside the bend pipe 12. The negative pressure component 9 is located at the bottom of the sealing component 3. The movable stop 4 includes a first motor 401. The housing of the first motor 401 is fixedly connected to the top of the working plate 102. A gear 402 is fixedly connected to the shaft of the first motor 401. A rack 403 is meshed with the bottom of the gear 402. An electric telescopic stop 404 is fixedly connected to the inner side of the rack 403. A first T-shaped block 405 is fixedly connected to the bottom of the electric telescopic stop 404. The first T-shaped block 405 is slidably connected to the first T-shaped groove 104. The rack 403 is slidably connected to the first T-shaped groove 104. The cam assembly 8 includes a third motor 801, and the shaft of the third motor 801 is fixedly connected to a cam component 802; The drainage tube fitting 11 includes a drainage tube body 1101, a front force ring 1102 fixedly connected to the front side of the drainage tube body 1101, a rear force ring 1103 fixedly connected to the end of the front force ring 1102, and a needle 1104 fixedly connected to the front end of the drainage tube body 1101. In this embodiment, it should be specifically noted that the electric telescopic stop 404 is a bidirectional synchronous telescopic electric push rod, whose two telescopic ends can extend outward simultaneously to adapt to and fit the outer wall of the drainage tube 1101 of different diameters.

[0020] Reference Figures 1-3The weighing assembly 2 includes a receiving cylinder 201. The top of the receiving cylinder 201 has an external through hole 202. A protruding arc block 203 is fixedly connected to the outside of the receiving cylinder 201. The protruding arc block 203 is hung above the gripper 103. A pressure-bearing sealing plate 204 is slidably and sealingly connected inside the receiving cylinder 201. A telescopic rod 205 is fixedly connected to the bottom of the pressure-bearing sealing plate 204 and the receiving cylinder 201. A spring 206 is sleeved on the outside of the telescopic rod 205. The two ends of the spring 206 are fixedly connected to the bottom of the pressure-bearing sealing plate 204 and the bottom of the receiving cylinder 201, respectively. A displacement sensor 207 is fixedly connected to the bottom of the receiving cylinder 201. The displacement sensor 207 is located inside the spring 206.

[0021] In this embodiment, it should be specifically explained that: when the receiving cylinder 201 continuously draws in liquid, the pressure sealing plate 204 compresses the spring 206 to contract, and the pressure sealing plate 204 also continuously descends. The displacement sensor 207 can sense the height of the descent of the pressure sealing plate 204.

[0022] Reference Figure 2 and Figure 4 The sealing component 3 includes a first hydraulic cylinder 301, and the piston rod of the first hydraulic cylinder 301 is fixedly connected to a stop block 302.

[0023] In this embodiment, it should be specifically noted that the first hydraulic cylinder 301 is an existing structure, and the specific structure and connection method of the first hydraulic cylinder 301 will not be described in detail in this embodiment.

[0024] Reference Figure 2 and Figure 6 The straightening assembly 5 includes a second hydraulic cylinder 501. The cylinder body of the second hydraulic cylinder 501 is fixedly connected to the second T-slot 105. The piston rod of the second hydraulic cylinder 501 is fixedly connected to a second T-block 503. A U-shaped plate 502 is fixedly connected to the top of the second T-block 503. The second T-block 503 is slidably connected to the second T-slot 105. The U-shaped plate 502 can push the corresponding rear force ring 1103 and front force ring 1102 to move. The opening size of the U-shaped plate 502 is between the diameter of the drainage tube body 1101 and the outer diameter of the front force ring 1102.

[0025] In this embodiment, it should be specifically explained that: the second hydraulic cylinder 501 corresponding to the rear force ring 1103 is activated, and the second hydraulic cylinder 501 drives the U-shaped plate 502 and the second T-shaped block 503 to move forward force ring 1102. The movement of the U-shaped plate 502 drives the rear force ring 1103 to move forward force ring 1102, so that the connection part of the drainage tube body 1101 from the rear force ring 1103 to the tee 10 is straightened. Then, the second hydraulic cylinder 501 corresponding to the front force ring 1102 is activated, and the second hydraulic cylinder 501 drives the U-shaped plate 502 and the front force ring 1102, so that the part from the front force ring 1102 to the rear force ring 1103 in the drainage tube body 1101 is straightened.

[0026] Reference Figure 1 , Figure 2 and Figure 7 The moving component 6 includes a screw 602 fixedly connected to the shaft of the second motor 601. The outer side of the screw 602 is helically connected to one side of the sliding block 603. The other side of the sliding block 603 is slidably connected to the guide block 604. The guide block 604 and the upper and lower ends of the screw 602 are respectively rotatably connected to the support frame 605. The support frames 605 are fixedly connected to each other through the connecting plate 606. The lower support frame 605 is fixedly connected to the support base plate 101. The housing of the second motor 601 is fixedly connected to the upper support frame 605.

[0027] In this embodiment, it should be specifically explained that when the second motor 601 is started, the second motor 601 drives the screw 602 to rotate, causing the sliding block 603 to rise or fall, which in turn drives the cam assembly 8 to rise or fall until the center height of the cam 802 is the same as the height of the front force ring 1102 and the rear force ring 1103 in the drainage pipe 11.

[0028] Reference Figure 1 , Figure 2 and Figure 7 The translation component 7 includes multiple third cylinders 701. The cylinder body of the first third cylinder 701 is fixedly connected to the top of the sliding block 603. The piston rod of the third cylinder 701 is fixedly connected to the moving block 702. The cylinder bodies of the remaining third cylinders 701 are fixedly connected to the moving block 702. A fourth cylinder 703 is fixedly connected to the side of the moving block 702. The fourth cylinder 703 is perpendicular to the third cylinder 701. The piston rod of the fourth cylinder 703 is fixedly connected to the mounting box 704. The housing of the third motor 801 is fixedly connected to the mounting box 704.

[0029] In this embodiment, it should be specifically explained that: all the third cylinders 701 are driven to move synchronously, which drives the moving block 702 to move, thereby driving the cam 802 to move, so that the distance between the cams 802 meets the negative pressure generated by the negative pressure component 9, so that when the cam 802 squeezes the drainage tube 1101, the blockage inside the drainage tube 1101 can be sucked into the receiving cylinder 201.

[0030] Reference Figure 1 and Figure 4 The negative pressure component 9 includes a fourth motor 901, the shaft of which is fixedly connected to a blower fan 902. The turning pipe component 12 includes a turning pipe body 1201, the bottom side wall of which is provided with an insertion groove 1202. The stop block 302 is slidably sealed to the insertion groove 1202. The housing of the fourth motor 901 is fixedly connected to the inner wall of the turning pipe body 1201.

[0031] In this embodiment, it should be specifically explained that: the corresponding first hydraulic cylinder 301 is activated, causing the stop block 302 to close the corresponding turning pipe 1201 and shut down the corresponding fourth motor 901. At the same time, another first hydraulic cylinder 301 is activated, driving the stop block 302 to connect the other turning pipe 1201 with the other receiving cylinder 201. Simultaneously, the corresponding fourth motor 901 is activated to generate negative pressure, causing the liquid to enter the other receiving cylinder 201, replacing the full receiving cylinder 201 with a new receiving cylinder 201.

[0032] The specific steps are as follows: First, the second hydraulic cylinder 501 corresponding to the rear force ring 1103 is activated. The second hydraulic cylinder 501 drives the U-shaped plate 502 and the second T-shaped block 503 to move towards the forward force ring 1102. The movement of the U-shaped plate 502 drives the rear force ring 1103 to move towards the forward force ring 1102, thus straightening the connection part of the drainage tube body 1101 from the rear force ring 1103 to the tee 10. Then, the second hydraulic cylinder 501 corresponding to the front force ring 1102 is activated. The second hydraulic cylinder 501 drives the U-shaped plate 502 and the front force ring 1102, thus straightening the part of the drainage tube body 1101 from the front force ring 1102 to the rear force ring 1103. Then, the second hydraulic cylinder 501 is activated. The second motor 601 drives the screw 602 to rotate, causing the sliding block 603 to rise or fall, which in turn causes the cam assembly 8 to rise or fall until the center height of the cam 802 is the same as the height of the front force ring 1102 and the rear force ring 1103 in the drainage tube 11. Based on the negative pressure generated by the negative pressure assembly 9 during surgery, all the third cylinders 701 are driven to move synchronously, causing the moving block 702 to move, which in turn causes the cam 802 to move. This ensures that the distance between the cam 802 matches the negative pressure generated by the negative pressure assembly 9, facilitating the squeezing of the drainage tube 1101 by the cam 802. During compression, blockages inside the drainage tube 1101 are drawn into the receiving cylinder 201. Then, all fourth hydraulic cylinders 703 are simultaneously activated. The fourth hydraulic cylinders 703 drive the cam 802 closer until it rotates, at which point the long axis of the cam 802 presses against the drainage tube 1101, while the short axis moves away. Then, the first motor 401 is activated, driving the gear 402 to rotate. The gear 402 drives the rack 403 and the electric telescopic stop 404 to move. The electric telescopic stop 404 finally adheres to the drainage tube 1101. During this process, due to the various surgical procedures requiring the drainage tube 1101... The diameter of pipe 101 is different. Regardless of the diameter of the drainage pipe 1101, the electric telescopic stop 404 can eventually stick to the drainage pipe 1101 to provide support for the drainage pipe 1101. Then, the electric telescopic stop 404 is activated and opens until the two sides of the electric telescopic stop 404 and the rear force ring 1103 and the front force ring 1102 provide support for the rotation of the working cam 802 to press the drainage pipe 1101. Then, the first oil cylinder 301 is activated, which drives the stop block 302 to isolate one turning pipe 1201 by the stop block 302, and the other turning pipe 1201 is connected to the receiving cylinder 201. Subsequently, the doctor inserts needle 1104 into the patient's body at the drainage site, activates the corresponding fourth motor 901, which drives the blower fan 902 to rotate and generate negative pressure. This allows the accumulated fluid, blood, and secretions in the patient's body to enter the drainage tube 1101 through needle 1104, then into the three-way connector 10, and finally into the receiving cylinder 201, which connects to the bend tube 1201. Then, the third motor 801, closest to the front force ring 1102, is activated. The third motor 801 drives the cam 802 to rotate, and the long side of the cam 802 compresses the wall of the drainage tube 1101. This compression instantly creates a localized high-pressure zone between the contact point of the cam 802 and the receiving cylinder 201. This high pressure acts like a small pump, forcefully pushing the liquid and any loose blockage fragments near the moving cam 802 forward along the drainage tube 1101. Simultaneously, the continuous negative pressure system will quickly absorb this high-pressure wave and convert it into a positive flow. If the moving cam 802 happens to be pressing down on a blockage at this time, it will physically crush it like a finger, turning it into smaller particles that can be easily carried away by the liquid flow. At the moment when the cam 802 closest to the front force ring 1102 has finished squeezing and is about to lift up, the large diameter surface of the second cam 802 in the negative pressure flow direction will press down on the drainage tube 1101. This can lock the retreat path and prevent the pressure wave that pushed forward when the first cam 802 is released from rebounding. It also generates a new forward thrust to continue to push the blockage forward. In this way, new cams 802 continuously press down on the drainage tube 1101, so the blockage will be squeezed down and pressed into the inside of the receiving cylinder 201, preventing blockage inside the drainage tube 1101. As liquid continuously enters the receiving cylinder 201, the pressure sealing plate 204 compresses the spring 206, causing the pressure sealing plate 204 to descend. The displacement sensor 207 can sense the height of the descent of the pressure sealing plate 204. When the displacement sensor 207 senses that the pressure sealing plate 204 has descended to a certain height, the receiving cylinder 201 is full of liquid. At this time, the corresponding first hydraulic cylinder 301 is activated, causing the stop block 302 to close the corresponding turning pipe 1201 and shut off the corresponding fourth motor 901. At the same time, another first hydraulic cylinder 301 is activated, driving the stop block 302 to connect the other turning pipe 1201 with the other receiving cylinder 201. Simultaneously, the corresponding fourth motor 901 is activated, generating negative pressure, allowing the liquid to enter the other receiving cylinder 201, replacing the full receiving cylinder 201 with a new one.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage device for clinical use in ICU (Intensive Care Unit), comprising a support assembly (1), characterized in that: A weighing component (2) is hung on the support component (1); two bend pipes (12) are connected through the top of the weighing component (2), and the two bend pipes (12) are connected through the tee (10); a sealing component (3) is provided on one side of the bend pipe (12); a movable stop (4) for providing support under different pipe diameters and a straightening component (5) for straightening the drainage pipe are slidably connected to the top of the support component (1); a drainage pipe (11) is connected through the upper end of the tee (10); a movable component (6) is installed on one side of the support component (1); Multiple translational components (7) are installed above the moving component (6); a cam assembly (8) for rotating and squeezing the drainage tube (11) to clear the blockage is provided on one side of the translational component (7); a negative pressure component (9) is provided inside the turning tube (12), and the negative pressure component (9) is located at the bottom of the closing component (3); the moving stop (4) has an adjustable electric telescopic stop (404) to fit the drainage tube (11) of different diameters, and the cam assembly (8) forms local high pressure by periodically squeezing the drainage tube (11) to push or crush the blockage.

2. The drainage device for clinical use in ICU critical care medicine according to claim 1, characterized in that: The movable stop (4) includes a first motor (401), the housing of the first motor (401) is fixedly connected to the top of the working plate (102) of the support assembly (1); the shaft of the first motor (401) is fixedly connected to a gear (402); the bottom of the gear (402) is meshed with a rack (403); the inner side of the rack (403) is fixedly connected to the electric telescopic stop (404); the bottom of the electric telescopic stop (404) is fixedly connected to a first T-shaped block (405); the first T-shaped block (405) is slidably connected to the first T-shaped groove (104) on the working plate (102), and the rack (403) is also slidably connected to the first T-shaped groove (104).

3. The drainage device for clinical use in ICU critical care medicine according to claim 2, characterized in that: The straightening assembly (5) includes a second hydraulic cylinder (501), the cylinder body of which is fixedly connected to a second T-slot (105) on the working plate (102) of the support assembly (1); the piston rod of the second hydraulic cylinder (501) is fixedly connected to a second T-block (503); a U-shaped plate (502) is fixedly connected to the top of the second T-block (503); and the second T-block (503) is slidably connected to the second T-slot (105).

4. The drainage device for clinical use in ICU critical care medicine according to claim 3, characterized in that: The moving component (6) includes a second motor (601), the shaft of which is fixedly connected to a screw (602); the outer side of the screw (602) is helically connected to one side of a sliding block (603); the other side of the sliding block (603) is slidably connected to a guide block (604); the guide block (604) and the upper and lower ends of the screw (602) are respectively rotatably connected to support frames (605), and the two support frames (605) are fixedly connected to each other by a connecting plate (606); the lower support frame (605) is fixedly connected to the support base plate (101) of the support component (1), and the housing of the second motor (601) is fixedly connected to the upper support frame (605).

5. The drainage device for clinical use in ICU critical care medicine according to claim 4, characterized in that: The translation component (7) includes multiple third cylinders (701). The cylinder body of the first third cylinder (701) is fixedly connected to the top of the sliding block (603) of the moving component (6). The piston rod of the third cylinder (701) is fixedly connected to the moving block (702), and the cylinder bodies of the remaining third cylinders (701) are fixedly connected to the moving block (702). A fourth cylinder (703) is fixedly connected to the side of the moving block (702), and the fourth cylinder (703) is perpendicular to the third cylinder (701). The piston rod of the fourth cylinder (703) is fixedly connected to the mounting box (704). The housing of the third motor (801) of the cam component (8) is fixedly connected to the mounting box (704).

6. The drainage device for clinical use in ICU critical care medicine according to claim 5, characterized in that: The cam assembly (8) includes a third motor (801), the shaft of which is fixedly connected to a cam element (802); the major diameter of the cam element (802) is used to press the drainage tube body (1101) of the drainage tube (11), and the minor diameter of the cam element (802) is used to move away from the drainage tube body (1101).

7. A drainage device for clinical use in ICU critical care medicine according to claim 6, characterized in that: The weighing component (2) includes a receiving cylinder (201), the top of which is provided with an external through hole (202); a protruding arc block (203) is fixedly connected to the outside of the receiving cylinder (201), the protruding arc block (203) is hung above the gripper (103) of the support component (1); a pressure-bearing sealing plate (204) is slidably and sealingly connected inside the receiving cylinder (201); a telescopic rod (205) is fixedly connected between the pressure-bearing sealing plate (204) and the bottom of the receiving cylinder (201); a spring (206) is sleeved on the outside of the telescopic rod (205), the two ends of the spring (206) are fixedly connected to the bottom of the pressure-bearing sealing plate (204) and the bottom of the receiving cylinder (201) respectively; a displacement sensor (207) is fixedly connected to the bottom of the receiving cylinder (201), the displacement sensor (207) is located inside the spring (206).

8. A drainage device for clinical use in ICU critical care medicine according to claim 7, characterized in that: The sealing assembly (3) includes a first hydraulic cylinder (301), the piston rod of which is fixedly connected to a stop block (302); the turning pipe (12) includes a turning pipe body (1201), the bottom side wall of which is provided with an insertion groove (1202), the stop block (302) and the insertion groove (1202) are slidably sealed together; the negative pressure assembly (9) includes a fourth motor (901), the shaft of which is fixedly connected to a blower fan (902), the housing of which is connected to the blower fan (902). The inner wall of the turning tube body (1201) is fixedly connected; the drainage tube fitting (11) includes a drainage tube body (1101), a front force ring (1102), a rear force ring (1103) and a needle (1104). The front force ring (1102) and the rear force ring (1103) are fixedly connected to the drainage tube body (1101) in sequence. The needle (1104) is fixedly connected to the front end of the drainage tube body (1101). The opening of the U-shaped plate (502) is larger than the diameter of the drainage tube body (1101) and smaller than the outer diameter of the front force ring (1102) and the rear force ring (1103).

9. A method of using a drainage device for clinical use in an ICU, comprising the drainage device for clinical use in an ICU as described in claim 8, characterized in that, Includes the following steps: S1. The second cylinder (501) of the straightening assembly (5) drives the U-shaped plate (502) to push the rear force ring (1103) and the front force ring (1102) to straighten the drainage tube (11); the moving assembly (6) adjusts the height of the cam assembly (8), and the translation assembly (7) adjusts the distance between the cam components (802); the electric telescopic stop (404) of the moving stop (4) fits against the drainage tube body (1101). S2. Start the first cylinder (301) of the sealing component (3) to close one bend pipe (12) and open the other by the stop block (302); start the fourth motor (901) of the negative pressure component (9) to drive the blower fan (902) to generate negative pressure, and the accumulated liquid enters the receiving cylinder (201) through the needle (1104), the drainage tube (1101) and the tee (10). S3. The third motor (801) of the starting cam assembly (8) drives the cam component (802) to rotate, periodically squeezing the drainage tube body (1101) with a long diameter, forming a local high pressure to push or crush the blockage; multiple cam components (802) squeeze in sequence to prevent the pressure wave from rebounding back, pushing the blockage to the receiving cylinder (201). S4. The pressure sealing plate (204) of the weighing component (2) compresses the spring (206) to contract as the liquid volume increases, and the displacement sensor (207) monitors the descent height. After the receiving cylinder (201) is full, the sealing component (3) switches to another turning pipe (12) and receiving cylinder (201) to continue the drainage.