Infusion alarm

Abstract

This utility model discloses an infusion alarm, relating to the field of medical auxiliary equipment technology. A fixing mechanism is provided at the rear end of the main frame, and a detection frame is fixedly connected to the right end of the main frame. The front end of the detection frame is open, and a closing operation frame is provided below the detection frame. A limit hole is provided on the inner side of the closing operation frame, and a placement hole is provided on the front side wall of the limit hole. An operation groove is provided on the right end of the main frame, and an infusion stop mechanism is provided within the operation groove. In use, the Murphy drip tube is passed through the installation gap and placed inside the abutment tube, ensuring that the infrared transmitter and infrared receiver are below the liquid level in the Murphy drip tube. The infrared transmitter and infrared receiver work together to detect the presence of liquid in the Murphy drip tube. When no liquid is detected, the operating motor drives the operating screw to rotate, thereby pushing the moving plate to the right. The stop operation rod then squeezes the infusion tube in the limit hole, thus achieving the effect of stopping the infusion.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to an infusion alarm. Background Technology

[0002] Intravenous infusion is one of the most common treatment methods in clinical medicine, widely used in scenarios such as fluid replacement, drug administration, and nutritional support. However, the infusion process requires strict monitoring. If the infusion is not handled in a timely manner after completion, it may lead to serious complications such as air entering the blood vessel (air embolism), backflow of blood, and needle blockage, which may even endanger the patient's life.

[0003] To address the aforementioned issues, alarms are typically triggered by appropriate devices. However, existing devices generally only issue an alarm and lack automatic shut-off functionality. Medical staff may be too busy to respond promptly, leading to the IV tubing emptying and posing a safety hazard. Therefore, this application proposes an IV alarm to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an infusion alarm device that solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an infusion alarm, comprising a main frame, a microcontroller housed within the main frame, a power supply compartment housed on the left side of the main frame, a charging power supply housed within the power supply compartment, heat dissipation holes on the front side wall of the main frame, an alarm housed on the front side of the main frame, a fixing mechanism housed on the rear side of the main frame, a detection frame fixedly connected to the right side of the main frame, an opening on the front side of the detection frame, a closing operation frame below the detection frame, a limit hole on the inner side of the closing operation frame, a placement hole on the front side wall of the limit hole, a connecting hole on the left side wall of the limit hole, an operation groove on the right side of the main frame, the operation groove communicating with the limit hole through the connecting hole, and an infusion stop mechanism housed within the operation groove;

[0006] An infrared transmitter and an infrared receiver are embedded in the inner wall of the detection frame. The infrared transmitter and the infrared receiver are symmetrically arranged on the left and right sides. A connecting pipe is provided on the inner side of the detection frame. An installation gap is provided at the front end of the connecting pipe. Two through holes are opened on the connecting pipe. The two through holes are symmetrically arranged in the left and right directions. The infrared transmitter, the infrared receiver and the two through holes are coaxially arranged.

[0007] Preferably, the infusion termination mechanism includes an operating motor and an auxiliary plate. The operating motor is fixed to the left inner wall of the operating groove, and the auxiliary plate is fixed to the lower inner wall of the operating groove. An operating screw is fixedly connected to the output end of the operating motor. The right end of the operating screw is rotatably connected to the left end of the auxiliary plate. A movable plate is slidably connected inside the operating groove. The operating screw passes through the movable plate and is threadedly connected to it. A pressure detection sensor is fixedly connected to the right end of the movable plate. A termination operating rod is fixedly connected to the right end of the pressure detection sensor. An abutment block made of rubber material is fixedly connected to the right end of the termination operating rod. The termination operating rod is located above the auxiliary plate.

[0008] Preferably, the abutment tube is hollow inside and is made of opaque rubber material.

[0009] Preferably, a rubber baffle is fixedly connected to the inner right side of the placement hole, and the left end of the rubber baffle is close to the inner left side of the placement hole.

[0010] Preferably, the fixing mechanism includes a fixing frame and a clamping screw. The fixing frame is U-shaped, and a limiting groove is formed on the right inner wall of the fixing frame. The limiting groove is arc-shaped. A clamping plate is provided inside the fixing frame. The right end of the clamping plate is provided with an arc-shaped groove. The right end of the clamping screw passes through the left side wall of the fixing frame and is rotatably connected to the left end of the clamping plate. The clamping screw is threadedly connected to the left side wall of the fixing frame.

[0011] Compared with related technologies, the infusion alarm provided by this utility model has the following beneficial effects:

[0012] 1. This utility model provides an infusion alarm device. The device is equipped with a stop tube. In use, the Murphy drip tube is passed through the installation gap and placed inside the stop tube, ensuring that the infrared transmitter and infrared receiver are below the liquid level in the Murphy drip tube. The infrared transmitter and infrared receiver work together to detect whether there is liquid in the Murphy drip tube. When no liquid is detected, the microcontroller controls the operating motor in the infusion stop mechanism to drive the operating screw to rotate, thereby pushing the moving plate to the right. The stop operating rod squeezes the infusion tube in the limiting hole, thereby achieving the effect of stopping the infusion. This effectively prevents air embolism or backflow, significantly improving safety.

[0013] 2. This utility model provides an infusion alarm. The device includes a stop tube within the detection frame. The hollow rubber stop tube secures the position of the Murphy drip chamber, ensuring accurate detection. Simultaneously, a rubber baffle ensures the infusion tubing remains within the limiting hole during use, guaranteeing the function of the infusion stop mechanism. Furthermore, the stop tube is made of light-shielding rubber material, effectively reducing interference from external light on the infrared transmitter and receiver, preventing unstable infrared signals and false alarm triggering. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram showing the rear angle of the present invention.

[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the detection frame of this utility model;

[0018] Figure 5 This is a three-dimensional cross-sectional structural diagram of the detection frame of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the closing operation frame of this utility model;

[0020] Figure 7 This is a three-dimensional structural diagram of the present invention in its practical state.

[0021] In the diagram: 1. Main frame; 2. Microcontroller; 3. Power supply compartment; 4. Charging power supply; 5. Alarm; 6. Heat dissipation hole; 7. Detection frame; 8. Closing operation frame; 9. Abutment pipe; 10. Infrared transmitter; 11. Infrared receiver; 12. Through hole; 13. Limiting hole; 14. Placement hole; 15. Connecting hole; 16. Rubber baffle; 17. Operating groove; 18. Operating motor; 19. Operating screw; 20. Auxiliary plate; 21. Moving plate; 22. Abutment block; 23. Fixing frame; 24. Limiting groove; 25. Clamping plate; 26. Clamping screw; 27. Pressure detection sensor; 28. Stop operation lever. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-7 This utility model provides a technical solution: an infusion alarm, including a main frame 1, a microcontroller 2 installed inside the main frame 1, a power supply compartment 3 installed on the left side of the main frame 1, a charging power supply 4 installed inside the power supply compartment 3, a heat dissipation hole 6 installed on the front side wall of the main frame 1, an alarm 5 installed on the front side of the main frame 1, a fixing mechanism installed on the rear side of the main frame 1, a detection frame 7 fixedly connected to the right side of the main frame 1, an opening on the front side of the detection frame 7, a closing operation frame 8 installed below the detection frame 7, a limit hole 13 installed inside the closing operation frame 8, a placement hole 14 opened on the front side wall of the limit hole 13, a connecting hole 15 opened on the left side wall of the limit hole 13, an operation groove 17 opened on the right side of the main frame 1, the operation groove 17 is connected to the limit hole 13 through the connecting hole 15, and an infusion stop mechanism is installed inside the operation groove 17;

[0024] The infusion termination mechanism includes an operating motor 18 and an auxiliary plate 20. The operating motor 18 is fixed to the left inner wall of the operating tank 17, and the auxiliary plate 20 is fixed to the lower inner wall of the operating tank 17. An operating screw 19 is fixedly connected to the output end of the operating motor 18. The right end of the operating screw 19 is rotatably connected to the left end of the auxiliary plate 20. A movable plate 21 is slidably connected inside the operating tank 17. The operating screw 19 passes through the movable plate 21 and is threadedly connected to it. A pressure detection sensor 27 is fixedly connected to the right end of the movable plate 21. A stop operation rod 28 is fixedly connected to the right end of the stop operation rod 28, and an abutment block 22 is fixedly connected to the right end of the stop operation rod 28. The abutment block 22 is made of rubber material. The stop operation rod 28 is located above the auxiliary plate 20. After the infusion is detected to be finished, the microcontroller 2 controls the operating motor 18 in the infusion stop mechanism to drive the operating screw 19 to rotate, thereby pushing the moving plate 21 to the right. The stop operation rod 28 squeezes the infusion tube in the limiting hole 13, thereby achieving the effect of stopping the infusion, effectively preventing air embolism or backflow, and significantly improving safety. At the same time, the pressure detection sensor 27 detects the pressure change when squeezing the infusion tube. When the pressure is stable, it is judged to be fully squeezed. At the same time, the setting of the rubber abutment block 22 effectively avoids damage to the infusion tube.

[0025] An infrared emitter 10 and an infrared receiver 11 are embedded in the inner wall of the detection frame 7. The infrared emitter 10 and infrared receiver 11 are symmetrically arranged on the left and right sides. A connecting tube 9 is provided inside the detection frame 7. The front end of the connecting tube 9 has an installation gap. Two through holes 12 are opened on the connecting tube 9. The two through holes 12 are symmetrically arranged in the left and right directions. The infrared emitter 10, infrared receiver 11 and the two through holes 12 are coaxially arranged. The connecting tube 9 is hollow inside and is made of opaque rubber material. The Murphy dropper is passed through the installation gap on the front side of the connecting tube 9. The tube is placed in the connecting tube 9, and the hollow structure of the connecting tube 9 ensures the stability of the Murphy drip tube. The infusion tube at the lower end of the Murphy drip tube passes through the rubber baffle 16 and is placed in the limiting hole 13. At the same time, the infrared transmitter 10 and the infrared receiver 11 are placed below the liquid surface in the Murphy drip tube. The infrared receiver 11 detects the intensity of the received light at all times. When there is no more liquid in the Murphy drip tube, the optical fiber emitted by the infrared transmitter 10 no longer passes through the liquid, which causes the intensity of the light received by the infrared receiver 11 to change. At this time, it is determined that the infusion has ended and the alarm 5 is triggered to sound an alarm.

[0026] A rubber baffle 16 is fixedly connected to the inner right side of the placement hole 14. The left side of the rubber baffle 16 is close to the inner left side of the placement hole 14. The setting of the rubber baffle 16 ensures that the infusion tube can always be located inside the limiting hole 13 when the device is in use, thereby ensuring the function of the infusion stop mechanism.

[0027] The fixing mechanism includes a fixing frame 23 and a clamping screw 26. The fixing frame 23 is U-shaped, and a limiting groove 24 is provided on the right inner wall of the fixing frame 23. The limiting groove 24 is arc-shaped. A clamping plate 25 is provided inside the fixing frame 23. The right end of the clamping plate 25 is provided with an arc-shaped groove. The right end of the clamping screw 26 passes through the left side wall of the fixing frame 23 and is rotatably connected to the left side end of the clamping plate 25. The clamping screw 26 is threadedly connected to the left side wall of the fixing frame 23. In use, the infusion stand is placed in the limiting groove 24, and the clamping screw 26 is rotated, thereby pushing the clamping plate 25 and the right side wall of the fixing frame 23 to cooperate and ensure that the main frame 1 can be tightly fitted with the infusion stand.

[0028] Working principle: During use, the main frame 1 is connected to the infusion stand using a fixing mechanism. The infusion stand is placed in the limiting groove 24. Rotating the clamping screw 26 pushes the clamping plate 25 and the right side wall of the fixing frame 23 to ensure a tight fit between the main frame 1 and the infusion stand. The Murphy drip tube is passed through the installation gap on the front side of the abutment tube 9 and placed in the abutment tube 9. The hollow structure of the abutment tube 9 ensures the stability of the Murphy drip tube. The infusion tube at the lower end of the Murphy drip tube passes through the rubber baffle 16 and is placed in the limiting hole 13. At the same time, the infrared transmitter 10 and the infrared receiver 11 are placed below the liquid surface in the Murphy drip tube. The infrared... Receiver 11 continuously monitors the intensity of the received light. When there is no more liquid in the Murphy drip chamber, the optical fiber emitted by infrared transmitter 10 no longer passes through the liquid, causing a change in the intensity of the light received by infrared receiver 11. At this point, it is determined that the infusion has ended, triggering alarm 5. Simultaneously, the microcontroller 2 controls the operating motor 18 in the infusion termination mechanism to rotate the operating screw 19, which in turn pushes the moving plate 21 to the right. The termination operating rod 28 then squeezes the infusion tube in the limiting hole 13, thereby achieving the effect of stopping the infusion and effectively preventing air embolism or backflow, significantly improving safety. At the same time, the pressure sensor 27 detects the pressure change when the infusion tube is squeezed. When the pressure stabilizes, it is determined that the tube is fully squeezed. The rubber abutment block 22 effectively prevents damage to the infusion tube.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An infusion alarm comprising a main body (1), characterized in that: A microcontroller (2) is installed inside the main frame (1). A power supply compartment (3) is installed on the left side of the main frame (1). A charging power supply (4) is installed inside the power supply compartment (3). A heat dissipation hole (6) is installed on the front side wall of the main frame (1). An alarm (5) is installed on the front side of the main frame (1). A fixing mechanism is installed on the rear side of the main frame (1). A detection frame (7) is fixedly connected to the right side of the main frame (1). The front end of the detection frame (7) has an opening. A closing operation frame (8) is provided below the detection frame (7). A limit hole (13) is provided on the inner side of the closing operation frame (8). A placement hole (14) is provided on the front side wall of the limit hole (13). A connecting hole (15) is provided on the left side wall of the limit hole (13). An operation groove (17) is provided on the right side of the main frame (1). The operation groove (17) is connected to the limit hole (13) through the connecting hole (15). An infusion stop mechanism is provided in the operation groove (17). An infrared transmitter (10) and an infrared receiver (11) are embedded on the inner wall of the detection frame (7). The infrared transmitter (10) and the infrared receiver (11) are symmetrically arranged on the left and right sides. An abutment tube (9) is provided on the inner side of the detection frame (7). An installation gap is provided on the front end of the abutment tube (9). Two through holes (12) are opened on the abutment tube (9). The two through holes (12) are symmetrically arranged in the left and right directions. The infrared transmitter (10), the infrared receiver (11) and the two through holes (12) are coaxially arranged.

2. An infusion alarm according to claim 1, characterized in that: The infusion termination mechanism includes an operating motor (18) and an auxiliary plate (20). The operating motor (18) is fixed on the left inner wall of the operating groove (17), and the auxiliary plate (20) is fixed on the lower inner wall of the operating groove (17). An operating screw (19) is fixedly connected to the output end of the operating motor (18). The right end of the operating screw (19) is rotatably connected to the left end of the auxiliary plate (20). A movable plate (21) is slidably connected inside the operating groove (17). The operating screw (19) passes through the movable plate (21) and is threadedly connected to the movable plate (21). A pressure detection sensor (27) is fixedly connected to the right end of the movable plate (21). A termination operating rod (28) is fixedly connected to the right end of the pressure detection sensor (27). An abutment block (22) is fixedly connected to the right end of the termination operating rod (28). The abutment block (22) is made of rubber material. The termination operating rod (28) is located above the auxiliary plate (20).

3. An infusion alarm according to claim 1, wherein: The abutment tube (9) is hollow inside and is made of opaque rubber material.

4. The infusion alarm of claim 1, wherein: A rubber baffle (16) is fixedly connected to the inner right side of the placement hole (14), and the left end of the rubber baffle (16) is close to the inner left side of the placement hole (14).

5. The infusion alarm of claim 1, wherein: The fixing mechanism includes a fixing frame (23) and a clamping screw (26). The fixing frame (23) is U-shaped. A limiting groove (24) is provided on the inner right side wall of the fixing frame (23). The limiting groove (24) is arc-shaped. A clamping plate (25) is provided inside the fixing frame (23). The right end of the clamping plate (25) is provided with an arc-shaped groove. The right end of the clamping screw (26) passes through the left side wall of the fixing frame (23) and is rotatably connected to the left side end of the clamping plate (25). The clamping screw (26) is threadedly connected to the left side wall of the fixing frame (23).

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