Automatic kneading and monitoring device for drainage tube

The automatic squeezing and monitoring device for drainage tubes solves the problems of manual squeezing and non-real-time monitoring required by traditional drainage tubes, realizing automated operation and real-time monitoring, thus improving medical work efficiency and treatment effectiveness.

CN224345283UActive Publication Date: 2026-06-12GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA
Filing Date
2025-04-10
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional drainage tubes require manual squeezing and cannot be monitored in real time, resulting in a heavy workload for medical staff and poor drainage effect, making it difficult to deal with blockages or abnormal situations in a timely manner.

Method used

Design an automatic squeezing and monitoring device for drainage tubes, comprising a housing assembly, a monitoring and control assembly, and an action assembly. The device utilizes a PLC control module, a flow sensor, a geared motor, and an electric push rod to achieve automatic squeezing and real-time monitoring, and uses a buzzer and indicator lights to indicate abnormalities.

Benefits of technology

It reduced the workload of medical staff, improved medical efficiency, enabled real-time monitoring and timely treatment of drainage tubes, and avoided treatment delays.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical instrument technical field, the utility model discloses a drainage tube automatic extrusion and monitoring device, including box body subassembly, install monitoring control subassembly and action subassembly on box body subassembly, and monitoring control subassembly includes control unit and detection unit, and action subassembly includes the extrusion mechanism and the clamping mechanism of installation box on installation box. The utility model has the advantages as follows: through automatic extrusion and monitoring function, the work burden of medical staff is greatly reduced, need not frequent manual extrusion drainage tube, let medical staff can invest more time and energy into other critical medical task, effectively improve medical work efficiency, and the flow sensor of detection unit can real -time monitoring the flow -through condition of drainage tube, and will signal feedback control unit, once appears the blockage or abnormality, and control unit can make the reaction quickly, through the buzzer alarm, the light indication and so on mode, let medical staff detect in time and handle, effectively avoid the delay of patient treatment process.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an automatic squeezing and monitoring device for drainage tubes. Background Technology

[0002] In the medical field, drainage tubes are widely used, playing a crucial role in draining accumulated fluid, blood, and other secretions, promoting wound healing, and preventing infection. However, traditional drainage tube manipulation methods have several drawbacks. Medical staff need to manually squeeze the drainage tube periodically to prevent blockage and ensure smooth drainage. This manual operation not only consumes a significant amount of time and energy but also suffers from inconsistent frequency and pressure due to the inherent instability of manual manipulation, potentially leading to poor drainage. Furthermore, the patency of the drainage tube currently relies heavily on periodic observation by medical staff, making real-time and precise monitoring impossible. If blockage or other abnormalities occur, they are difficult to detect and address promptly, potentially delaying the patient's treatment and negatively impacting their recovery. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide an automatic squeezing and monitoring device for a drainage tube, which can automatically squeeze the drainage tube and monitor its flow in real time.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an automatic squeezing and monitoring device for drainage tubes, comprising:

[0005] A housing assembly, a monitoring and control assembly, and an action assembly mounted on the housing assembly;

[0006] The box assembly includes a mounting box, a cover plate hinged to the mounting box, and a hanging rope disposed on the mounting box. A placement cavity is also provided on the side wall of the mounting box so that the drainage tube is placed in the placement cavity.

[0007] The monitoring and control component includes a control unit and a detection unit. The detection unit is signal-connected to the control unit and feeds back the detection signal to the control unit, which then sends control commands.

[0008] The actuation components include a squeezing mechanism and a clamping mechanism mounted on the mounting box.

[0009] Preferably, magnetic blocks that attract each other are provided on the side wall of the mounting box and the cover plate that are in contact with each other, away from the hinge side.

[0010] Preferably, the control unit includes a PLC control module installed in the mounting box and a battery, a buzzer, an indicator light, a display screen, and control buttons electrically connected to the PLC control module. The battery and the buzzer are installed in the mounting box, and the indicator light, the display screen, and the control buttons are disposed on the cover plate.

[0011] Preferably, the detection unit includes a flow sensor installed on the mounting box. The flow sensor is signal-connected to the PLC control module. The flow sensor monitors the drainage tube placed in the placement cavity, determines its flow status, and provides feedback.

[0012] Preferably, the squeezing mechanism includes a geared motor installed in the mounting box and signal-connected to the PLC control module, and a turntable fixedly connected to the drive shaft of the geared motor. A drainage tube placement channel is formed between the turntable and the side wall of the placement cavity. A pair of mounting plates are symmetrically arranged on the side wall of the turntable along its axial direction. A squeezing roller that can rotatably abut against the side wall of the placement cavity is arranged between the mounting plates. As the geared motor works, the squeezing roller rotates accordingly to squeeze the drainage tube to form a squeezing effect.

[0013] Preferably, the clamping mechanism includes an electric push rod that is signal-connected to the PLC control module. The telescopic end of the electric push rod is connected to a squeezing block. As the electric push rod operates, the squeezing block moves accordingly to pressurize the drainage tube and achieve clamping.

[0014] Preferably, the side wall of the placement cavity is provided with a locking claw for limiting the position.

[0015] With the above structure, this utility model has the following advantages:

[0016] This application significantly reduces the workload of medical staff through automatic squeezing and monitoring functions, eliminating the need for frequent manual squeezing of the drainage tube. This allows medical staff to devote more time and energy to other critical medical tasks, effectively improving medical work efficiency. The flow sensor in the detection unit can monitor the flow of the drainage tube in real time and feed the signal back to the control unit. Once a blockage or abnormality occurs, the control unit can react quickly, using methods such as buzzer alarms and indicator lights to allow medical staff to detect and handle the situation in a timely manner, effectively avoiding delays in the patient's treatment process. The clamping mechanism can precisely control the pressure applied to the drainage tube by the squeezing block, achieving flexible clamping operations and meeting the needs of drainage tube clamping in different medical scenarios.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the open state of this utility model.

[0021] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0022] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0023] As shown in the figure: 1. Mounting box; 2. Cover plate; 3. Indicator light; 4. Display screen; 5. Control buttons; 6. Placement cavity; 7. Electric push rod; 8. Extrusion block; 9. Flow sensor; 10. Turntable; 11. Claw; 12. Mounting plate; 13. Extrusion roller; 14. Gear motor; 15. Buzzer; 16. PLC control module. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Combined with appendix Figures 1-4 An automatic squeezing and monitoring device for a drainage tube includes a box assembly, a monitoring and control assembly and an action assembly mounted on the box assembly. The monitoring and control assembly includes a control unit and a detection unit. The detection unit is signal-connected to the control unit and feeds back the detection signal to the control unit, which then sends control commands. The action assembly includes a squeezing mechanism and a clamping mechanism mounted on the mounting box 1.

[0027] The box assembly includes a mounting box 1, a cover plate 2 hinged to the mounting box 1, and a suspension rope on the mounting box 1 for easy hanging of the device beside the hospital bed. The side wall of the mounting box 1 also has a placement cavity 6 for placing the drainage tube. The two ends of the placement cavity 6 extend to the upper and lower end faces of the mounting box 1, respectively, for easy placement of the drainage tube. The side wall of the placement cavity 6 is provided with a locking claw 11 for limiting the position. On the side wall of the mounting box 1 and the cover plate 2 that are in contact with each other, a magnetic block that attracts each other is provided on the side away from the hinge. The magnetic block is made of neodymium iron boron permanent magnet material, which has strong magnetic force and can ensure that the cover plate 2 is tightly attached to the mounting box 1 when closed, while also making it easy for medical staff to open and close with one hand.

[0028] The control unit includes a PLC control module 16 installed in mounting box 1, and a battery, buzzer 15, indicator light 3, display screen 4, and control buttons 5 electrically connected to the PLC control module 16. The battery and buzzer 15 are installed in mounting box 1, and the indicator light 3, display screen 4, and control buttons 5 are located on cover plate 2. The PLC control module 16 can be a Siemens S7-200SMART series CPU. The SR20 model has 20 I / O points, including 12 input points and 8 output points, which can meet the signal connection requirements of various sensors and actuators in this device. The PLC control module 16 integrates a timer, which can stably run the control program. The indicator light 3 has three colors: red, yellow, and green. The green light indicates that the device is running normally, the red light indicates that liquid flow in the drainage tube is detected, and the yellow light indicates that the device is in standby and not running. The display screen 4 is a 1.8-inch TFT LCD screen that can display information such as battery level, power-on status, number of squeezes, number of alarms and duration. There are two control buttons 5. One is used for powering on and off, and the other is used to adjust the squeezing time interval, such as 5min, 10min, 15min, 30min, 1h, etc.

[0029] The detection unit includes a flow sensor 9 mounted on the mounting box 1. The flow sensor 9 is connected to the PLC control module 16. The flow sensor 9 monitors the drainage tube placed in the placement cavity 6, determines its flow status, and provides feedback. The flow sensor 9 is an ultrasonic flow sensor, model USF-100. This sensor uses a non-contact measurement method, monitoring the liquid flow rate in the drainage tube placed in the placement cavity 6 via ultrasound, and transmitting the real-time flow data to the PLC control module 16.

[0030] The squeezing mechanism includes a geared motor 14 installed in the mounting box 1 and connected to the PLC control module 16, and a turntable 10 fixedly connected to the drive shaft of the geared motor 14. A drainage tube placement channel is formed between the turntable 10 and the side wall of the placement cavity 6. A pair of mounting plates 12 are symmetrically arranged on the side wall of the turntable 10 along its axial direction. A squeezing roller that can rotatably abut against the side wall of the placement cavity 6 is arranged between the mounting plates 12. As the geared motor 14 works, the squeezing roller 13 rotates to squeeze the drainage tube to form a squeezing effect.

[0031] A DC geared motor 14, model GM37RG-12V, is selected. The motor has a rated voltage of 12V, an output speed of 60r / min, and an output torque of 10kg·cm. The geared motor 14 is connected to the PLC control module 16 via a control line, and receives control signals from the PLC control module to adjust the motor speed and start / stop.

[0032] The clamping mechanism includes an electric push rod 7 that is connected to the PLC control module 16. The telescopic end of the electric push rod 7 is connected to a squeezing block 8. As the electric push rod 7 works, the squeezing block 8 moves to pressurize the drainage tube and achieve clamping.

[0033] After the power is turned on, the PLC control module 16 completes initialization, and the internal timer is ready. At this time, the yellow indicator light 3 on the cover plate 2 lights up, indicating that the device is in standby mode and not running. Medical staff can start the device by pressing the power button 5 on the cover plate 2. The green indicator light 3 will then light up, indicating that the device has entered normal operating mode.

[0034] Medical staff use the suspension rope on the installation box 1 to suspend the device at a suitable position next to the hospital bed, open the cover 2 that is hinged to the installation box 1, extend the drainage tube from both ends of the placement cavity 6 to the openings on the upper and lower end faces of the installation box 1, and place it into the placement cavity 6. The drainage tube is limited and fixed by the claws 11 on the side wall to ensure its stable position. Then, the cover 2 is closed, and the magnetic block is attracted to make the cover 2 fit tightly against the installation box 1. The ultrasonic flow sensor 9 installed on the installation box 1 uses a non-contact measurement method to monitor the liquid flow rate in the drainage tube placed in the placement cavity 6 in real time, and transmits the acquired real-time flow data to the PLC control module 16.

[0035] During normal operation of the device, medical staff can adjust the squeezing time interval via control button 5, such as 5 minutes, 10 minutes, 15 minutes, 30 minutes, 1 hour, etc. The PLC control module triggers the command according to the set time interval using the integrated timer. When the squeezing command is triggered, the control signal is transmitted to the geared motor 14, which starts and drives the turntable 10 fixedly connected to its drive shaft to rotate. The squeezing rollers on the side wall of the turntable 10 rotate accordingly, cooperating with the side wall of the placement cavity 6 to squeeze the drainage tube, thereby realizing the squeezing action to prevent the drainage tube from being blocked. At the same time, the PLC control module 16 records the number of squeezings and displays it on the display screen 4.

[0036] The PLC control module 16 continuously analyzes the flow data transmitted by the flow sensor 9. If it detects that the liquid in the drainage tube has stopped flowing, i.e. there is no flow data, the control module determines that the drainage tube is blocked. At this time, the control module immediately issues a command to control the buzzer 15 to sound an alarm and to switch the indicator light 3 on the cover plate 2 to red to remind medical staff. At the same time, the display screen 4 will record information such as the number of alarms and the duration.

[0037] When it is necessary to clamp the drainage tube, such as when changing the drainage bag, the PLC control module 16 receives the corresponding instruction and controls the control circuit connected to the electric push rod 7 to make the electric push rod 7 work. The telescopic end of the electric push rod 7 pushes the squeezing block 8 to move, pressurizing the drainage tube and realizing the clamping function. When the clamping operation is completed, the PLC control module 16 controls the electric push rod 7 again to retract it and release the clamping of the drainage tube.

[0038] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An automatic squeezing and monitoring device for a drainage tube, characterized in that, include: A housing assembly, a monitoring and control assembly, and an action assembly mounted on the housing assembly; The box assembly includes a mounting box, a cover plate hinged to the mounting box, and a hanging rope disposed on the mounting box. A placement cavity is also provided on the side wall of the mounting box so that the drainage tube is placed in the placement cavity. The monitoring and control component includes a control unit and a detection unit. The detection unit is signal-connected to the control unit and feeds back the detection signal to the control unit, which then sends control commands. The actuation components include a squeezing mechanism and a clamping mechanism mounted on the mounting box.

2. The automatic squeezing and monitoring device for a drainage tube according to claim 1, characterized in that: On the side wall where the mounting box and the cover plate are in contact, magnetic blocks that attract each other are provided on the side away from the hinge.

3. The automatic squeezing and monitoring device for a drainage tube according to claim 2, characterized in that: The control unit includes a PLC control module installed in the mounting box and a battery, a buzzer, an indicator light, a display screen, and control buttons electrically connected to the PLC control module. The battery and the buzzer are installed in the mounting box, and the indicator light, the display screen, and the control buttons are located on the cover plate.

4. The automatic squeezing and monitoring device for a drainage tube according to claim 3, characterized in that: The detection unit includes a flow sensor installed on the mounting box. The flow sensor is signal-connected to the PLC control module. The flow sensor monitors the drainage tube placed in the placement cavity, determines its flow status, and provides feedback.

5. The automatic squeezing and monitoring device for a drainage tube according to claim 4, characterized in that: The squeezing mechanism includes a geared motor installed in the mounting box and signal-connected to the PLC control module, and a turntable fixedly connected to the drive shaft of the geared motor. A drainage tube placement channel is formed between the turntable and the side wall of the placement cavity. A pair of mounting plates are symmetrically arranged on the side wall of the turntable along its axial direction. A squeezing roller that can rotatably abut against the side wall of the placement cavity is arranged between the mounting plates. As the geared motor works, the squeezing roller rotates accordingly to squeeze the drainage tube and form a squeezing effect.

6. The automatic squeezing and monitoring device for a drainage tube according to claim 5, characterized in that: The clamping mechanism includes an electric push rod that is signal-connected to the PLC control module. The telescopic end of the electric push rod is connected to a squeezing block. As the electric push rod operates, the squeezing block moves accordingly to pressurize the drainage tube and achieve clamping.

7. The automatic squeezing and monitoring device for a drainage tube according to claim 6, characterized in that: The side wall of the placement cavity is provided with a locking claw for limiting the position.