Pinch off infusion monitor

Abstract

This utility model belongs to the field of medical auxiliary equipment technology, specifically relating to a clamping infusion monitor, including a sliding cover, an elastic element, a middle frame, a clamping block, an eccentric wheel, a motor, a monitoring PCB, a main PCB, a bottom cover, a button battery, a battery cover, a first monitoring switch, a second monitoring switch, a third monitoring switch, an LED, and a buzzer. The motor, eccentric wheel, and clamping block are all located within the middle frame. The motor's output shaft is connected to the eccentric wheel, and the eccentric wheel is drivenly connected to the clamping block. An LED is fixedly mounted on the top of the main PCB, and a buzzer is fixedly mounted on the bottom of the main PCB. This utility model can detect the position of the clamping block through the first monitoring switch to determine whether the infusion tube is clamped and whether the clamping block position is normal. If the position is abnormal, the first monitoring switch can automatically correct the position, reducing damage to the product due to abnormal position and avoiding the problems of easy motor damage and increased power consumption caused by the lack of position detection in existing products.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary equipment technology, specifically, it relates to a clamp-off infusion monitor. Background Technology

[0002] Intravenous infusion is a common treatment method in clinical medical practice, where medication is continuously delivered into the patient's body through an infusion tube to achieve therapeutic effects. However, if the infusion is not detected and addressed promptly after the medication has finished flowing into the infusion tubing, backflow of blood can easily occur. This not only increases patient discomfort but may also lead to complications such as vascular blockage, posing a potential risk to the patient's treatment safety. Therefore, real-time monitoring of the fluid status within the infusion tubing and timely alerts when the medication has run out are crucial for ensuring infusion safety.

[0003] Currently, there are various infusion empty tube monitoring products on the market, but they still have many defects and shortcomings in practical applications, as follows:

[0004] 1. Inappropriate power supply: Most similar products use rechargeable batteries. When the battery is low, the monitor needs to be removed from the infusion tubing and charged using a dedicated power adapter, a process that takes a long time. This not only affects the continuous use of the monitor but may also create safety hazards because the infusion process cannot be effectively monitored during charging.

[0005] 2. Cumbersome operation process: When the monitor needs to be reused after the infusion tubing has been clamped, the operation steps of the existing products are relatively complicated. Usually, the unlock button needs to be pressed first to release the clamping state, and then the device shell needs to be opened to remove the monitor from the infusion tubing. The operation process is time-consuming and laborious, causing inconvenience to medical staff or patients.

[0006] 3. Design flaws in the motor and clamping mechanism: Existing products generally lack the function to detect the position of the clamping block. Their clamping method for the infusion tube often relies on extending the motor's running time, keeping the motor in a continuously stalled state to achieve clamping. This design not only severely affects the motor's lifespan due to prolonged stalling, but also significantly increases power consumption during motor stalling, accelerating battery drain. Furthermore, when the clamping block becomes abnormally positioned due to installation errors or mechanical wear, the product cannot detect and correct it in time. It can only rely on the motor continuously stalling until the program-set stop time, after which the user must manually press a switch to unlock and reset, further reducing the product's reliability and stability.

[0007] 4. Insufficient alarm accuracy: Some similar products have the abnormal phenomenon of issuing false alarm signals when the infusion tube is not clamped. Such false alarms not only interfere with the work judgment of medical staff, but may also cause medical staff to ignore the real alarm signals, affecting the effective protection of infusion safety.

[0008] In summary, existing infusion empty tube monitoring products have room for improvement in terms of power supply convenience, ease of operation, equipment durability, and alarm accuracy. There is an urgent need for a clamp-on infusion monitor that can solve the above problems. Utility Model Content

[0009] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a clamping infusion monitor.

[0010] According to the present invention, a clamping infusion monitor includes a sliding cover, an elastic element, a middle frame, a clamping block, an eccentric wheel, a motor, a monitoring PCB, a main PCB, a bottom cover, a button battery, a battery cover, a first monitoring switch, a second monitoring switch, a third monitoring switch, an LED, and a buzzer. The motor, eccentric wheel, and clamping block are all located within the middle frame. The output shaft of the motor is connected to the eccentric wheel, and the eccentric wheel is connected to the clamping block via a transmission connection. The motor can drive the eccentric wheel to rotate, thereby causing the clamping block to move linearly. The first, second, and third monitoring switches are all mounted on the top of the main PCB and are electrically connected to the main PCB. An LED is fixedly mounted on the top of the main PCB, and a buzzer is fixedly mounted on the bottom of the main PCB.

[0011] In a preferred embodiment: the middle frame is provided with a groove for placing the infusion tube, and a receiving groove is opened on the side wall of the groove near the sliding cover. An elastic element is disposed in the receiving groove. The elastic element includes a spring. One end of the elastic element is fixedly connected to the bottom extension of the sliding cover, and the other end of the elastic element is fixedly connected to the wall of the receiving groove, so that the sliding cover and the middle frame are slidably connected.

[0012] In a preferred embodiment: the first monitoring switch is disposed at the position of the clamping block within the middle frame, and is used to detect the position of the clamping block.

[0013] In a preferred embodiment: the second monitoring switch is located within the middle frame at the position corresponding to the sliding cover, and is used to control the motor to retract the clamping block when the sliding cover is pushed.

[0014] In a preferred embodiment: the third monitoring switch is disposed in the groove of the middle frame and is used to detect whether an infusion tube is placed in the groove of the middle frame.

[0015] In a preferred embodiment: the monitoring PCB is installed at the top center of the main PCB, the monitoring PCB is electrically connected to the main PCB through wires, and the monitoring PCB monitors the liquid state in the infusion tube through optical sensing or infrared detection.

[0016] In a preferred embodiment: the rim of the eccentric wheel contacts the end of the clamping block, and when the eccentric wheel rotates, the clamping block is driven to make linear reciprocating motion along the guide structure of the middle frame by the change of eccentricity.

[0017] In a preferred embodiment: the main PCB integrates a control chip that can receive signals from each monitoring switch and the monitoring PCB and output control commands.

[0018] In a preferred embodiment: the bottom cover is located below the middle frame, and the bottom cover and the middle frame are detachably connected to facilitate the installation and maintenance of internal components.

[0019] In a preferred embodiment: the button battery is mounted on the bottom cover via a battery cover, the battery cover and the bottom cover are detachably connected, and the button battery is electrically connected to the motor, the monitoring PCB, the main PCB, the first monitoring switch, the second monitoring switch and the third monitoring switch respectively.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This utility model reduces power consumption by monitoring the switch and using a low-power motor, while ensuring motor torque. The reduced power consumption allows the use of button batteries for power supply. When the battery is low, it can be directly replaced to continue use, saving charging time and solving the problem of inconvenient charging in existing products.

[0022] 2. This utility model allows for direct opening and removal of the cover. The sliding cover operation triggers the second monitoring switch, which in turn controls the motor via the main PCB to retract the clamping block, achieving integrated opening and unlocking. This design is convenient for users and solves the problem of cumbersome operation in existing products.

[0023] 3. This utility model can detect the position of the clamping block through the first monitoring switch, determine whether the infusion tube is clamped and whether the position of the clamping block is normal. If the position is abnormal, the position can be automatically corrected through the first monitoring switch, reducing the damage to the product due to abnormal position and avoiding the problems of easy motor damage and increased power consumption caused by the lack of position detection in existing products.

[0024] 4. This utility model uses a third monitoring switch to detect whether an infusion tube is placed in the groove of the middle frame, which can effectively solve the abnormal alarm phenomenon when the infusion tube is not clamped. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a top view of the main PCB of this utility model;

[0028] Figure 3 This is a bottom view of the main PCB of this utility model;

[0029] 1. Sliding cover; 2. Elastic element; 3. Middle frame; 4. Clamping block; 5. Deflecting wheel; 6. Motor; 7. Monitoring PCB; 8. Main PCB; 9. Bottom cover; 10. Button battery; 11. Battery cover; 12. First monitoring switch; 13. Second monitoring switch; 14. Third monitoring switch; 15. LED; 16. Buzzer. Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] like Figure 1-3As shown, this utility model discloses a clamping infusion monitor, including a sliding cover 1, an elastic element 2, a middle frame 3, a clamping block 4, a deflecting wheel 5, a motor 6, a monitoring PCB 7, a main PCB 8, a bottom cover 9, a button battery 10, a battery cover 11, a first monitoring switch 12, a second monitoring switch 13, a third monitoring switch 14, an LED 15, and a buzzer 16. The middle frame 3 is provided with a groove for placing the infusion tube. A receiving groove is formed on the wall of the groove near the sliding cover 1. The elastic element 2 is disposed in the receiving groove. The elastic element 2 includes a spring. One end of the elastic element 2 is fixedly connected to the bottom extension of the sliding cover 1, and the other end is fixedly connected to the wall of the receiving groove, so that the sliding cover 1 and the middle frame 3 are correspondingly slidably connected. Opening the sliding cover 1 compresses the elastic element 2. After releasing, the elastic element 2 pushes the sliding cover 1 back to its original position. The bottom cover 9 is located below the middle frame 3 and is detachably connected to the middle frame 3 for easy installation and maintenance of internal components. The button battery 10 is installed on the bottom cover 9 through the battery cover 11, which is detachably connected to the bottom cover 9 for easy replacement of the button battery 10. The button battery 10 is electrically connected to the motor 6, monitoring PCB 7, main PCB 8, first monitoring switch 12, second monitoring switch 13, and third monitoring switch 14. The motor 6, eccentric wheel 5, and clamping block 4 are all located inside the middle frame 3. The output shaft of the motor 6 is connected to the eccentric wheel 5, and the eccentric wheel 5 is connected to the clamping block 4 via a transmission connection. The motor 6 can drive the eccentric wheel 5 to rotate to drive the clamping block 4. The clamping block 4 moves linearly to clamp and release the infusion tube. Monitoring PCB 7 is installed at the top center of the main PCB 8 and is electrically connected to the main PCB 8 via wires. Monitoring PCB 7 is used to monitor the fluid level inside the infusion tube. The first monitoring switch 12, the second monitoring switch 13, and the third monitoring switch 14 are all installed at the top of the main PCB 8 and are electrically connected to the main PCB 8. The first monitoring switch 12 is located within the middle frame 3 at the position corresponding to the clamping block 4 and is used to detect the position of the clamping block 4, determining whether the infusion tube is clamped and whether the position of the clamping block 4 is normal. When the clamping block 4 moves to a preset position, it triggers the first monitoring switch. Switch 12 and second monitoring switch 13 are located in the middle frame 3 at the position corresponding to the sliding cover 1. They are used to control motor 6 to retract clamping block 4 when the sliding cover 1 is pushed. When the sliding cover 1 is pushed, the sliding cover 1 can trigger the second monitoring switch 13. Third monitoring switch 14 is located in the groove of the middle frame 3. It is used to detect whether there is an infusion tube in the groove of the middle frame 3. When the infusion tube is placed in the groove, it can trigger the third monitoring switch 14. LED 15 is fixedly installed on the top of the main PCB8 and buzzer 16 is fixedly installed on the bottom of the main PCB8. When the monitoring PCB7 detects that there is no liquid in the infusion tube, the main PCB8 can control motor 6 to run to drive clamping block 4 to clamp the infusion tube, and at the same time control LED 15 to flash and buzzer 16 to sound.

[0032] Working principle

[0033] In use, this utility model achieves infusion monitoring, automatic clamping, and alarm reminders through the coordinated operation of mechanical structure and electronic control: During initial installation, manually push open the sliding cover 1 to compress the elastic element 2, place the infusion tube into the groove of the middle frame 3, and then release the sliding cover. The spring pushes the sliding cover back to clamp the infusion tube, and at the same time, the infusion tube triggers the third monitoring switch 14. After receiving the signal, the main PCB8 starts the monitoring PCB7 to monitor the liquid in the tube in real time. When the monitoring PCB detects that the liquid infusion is complete, it immediately sends a signal to the main PCB8. The main PCB synchronously controls the motor 6 to start, and the motor output shaft drives the eccentric wheel 5 to rotate and convert it into linear thrust, pushing the clamping block 4 to clamp. The infusion tube simultaneously triggers the first monitoring switch 12 to stop the motor, preventing increased power consumption and mechanical damage. The main PCB controls the LED 15 to flash and the buzzer 16 to sound to indicate the end of the infusion. When unlocking, pushing the sliding cover triggers the second monitoring switch 13, and the main PCB controls the motor to rotate in reverse, driving the eccentric wheel and clamping block to reset and release the clamp, making it easy to remove the monitor. After the sliding cover is released, the spring pushes it to reset, and the device returns to the standby state. Throughout the process, the main PCB reduces power consumption through signal-triggered control of the monitoring switches and the selection of a low-power motor. The button battery 10 provides continuous power, and the battery can be directly replaced when the power is low, ensuring continuous operation of the device.

[0034] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "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 application 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 limitations on this application.

[0035] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A pinch-off infusion monitor, characterized in that, The components include a sliding cover (1), an elastic element (2), a middle frame (3), a clamping block (4), an eccentric wheel (5), a motor (6), a monitoring PCB (7), a main PCB (8), a bottom cover (9), a button battery (10), a battery cover (11), a first monitoring switch (12), a second monitoring switch (13), a third monitoring switch (14), an LED (15), and a buzzer (16). The motor (6), the eccentric wheel (5), and the clamping block (4) are all located inside the middle frame (3). The output shaft of the motor (6) is connected to the eccentric wheel (5). (5) is connected to the clamping block (4) for transmission. The motor (6) can drive the eccentric wheel (5) to rotate so as to drive the clamping block (4) to make linear motion. The first monitoring switch (12), the second monitoring switch (13) and the third monitoring switch (14) are all installed on the top of the main PCB (8). The first monitoring switch (12), the second monitoring switch (13) and the third monitoring switch (14) are all electrically connected to the main PCB (8). An LED (15) is fixedly installed on the top of the main PCB (8), and a buzzer (16) is fixedly installed on the bottom of the main PCB (8).

2. The pinch-off infusion monitor according to claim 1, characterized in that, The middle frame (3) is provided with a groove for placing the infusion tube. A receiving groove is opened on the side wall of the groove near the sliding cover (1). An elastic element (2) is set in the receiving groove. The elastic element (2) includes a spring. One end of the elastic element (2) is fixedly connected to the bottom extension of the sliding cover (1), and the other end of the elastic element (2) is fixedly connected to the wall of the receiving groove, so that the sliding cover (1) and the middle frame (3) are slidably connected.

3. The pinch-off infusion monitor according to claim 1, characterized in that, The first monitoring switch (12) is set in the middle frame (3) at the position corresponding to the clamping block (4) to detect the position of the clamping block (4).

4. The pinch-off infusion monitor according to claim 1, characterized in that, The second monitoring switch (13) is located in the middle frame (3) at the position corresponding to the sliding cover (1), and is used to control the motor (6) to retract the clamping block (4) when the sliding cover (1) is pushed.

5. The pinch-off infusion monitor according to claim 1, characterized in that, The third monitoring switch (14) is located in the tank of the middle frame (3) and is used to detect whether an infusion tube is placed in the tank of the middle frame (3).

6. The pinch-off infusion monitor according to claim 1, characterized in that, The monitoring PCB (7) is installed at the top center of the main PCB (8). The monitoring PCB (7) and the main PCB (8) are electrically connected by wires. The monitoring PCB (7) monitors the liquid status in the infusion tube by means of optical sensing or infrared detection.

7. The pinch-off infusion monitor according to claim 1, characterized in that, The rim of the eccentric wheel (5) contacts the end of the clamping block (4). When the eccentric wheel (5) rotates, it drives the clamping block (4) to make linear reciprocating motion along the guide structure of the middle frame (3) through the change of eccentricity.

8. The pinch-off infusion monitor according to claim 1, characterized in that, The main PCB (8) integrates a control chip that can receive signals from each monitoring switch and the monitoring PCB and output control commands.

9. The pinch-off infusion monitor according to claim 1, characterized in that, The bottom cover (9) is located below the middle frame (3). The bottom cover (9) and the middle frame (3) are detachably connected, which facilitates the installation and maintenance of internal components.

10. The pinch-off infusion monitor according to claim 1, characterized in that, The button battery (10) is installed on the bottom cover (9) through the battery cover (11). The battery cover (11) and the bottom cover (9) are detachably connected. The button battery (10) is electrically connected to the motor (6), the monitoring PCB (7), the main PCB (8), the first monitoring switch (12), the second monitoring switch (13) and the third monitoring switch (14).

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