Empty liquid prompting device for infusion
By designing an empty infusion indicator device, a buoy triggers a photoelectric switch to activate the warning light and buzzer, and an electromagnet clamps the infusion tubing, the problem of medical staff being unable to detect when the medication is used up is solved, ensuring safe and undamaged infusion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
- Filing Date
- 2024-12-04
- Publication Date
- 2026-05-26
AI Technical Summary
During intravenous infusion, medical staff may be unable to detect when the medication is running out due to insufficient manpower, which may cause local tissue damage or hematoma to the patient due to the needle.
Design an empty infusion device that uses a float to trigger a photoelectric switch as the liquid level drops, activating an alarm light and buzzer to alert medical staff. It also uses an electromagnet to clamp the infusion tubing to prevent injury to the patient.
It enables timely notification to medical staff to handle empty infusions, preventing patient injury, and ensures infusion safety through a combination of photoelectric switches and electromagnets.
Smart Images

Figure CN224269856U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and in particular relates to an empty fluid indicator device for infusion. Background Technology
[0002] Intravenous infusion therapy is a treatment method that delivers drugs or nutrients directly into the human circulatory system via intravenous injection. It can quickly replenish body fluids, electrolytes, and nutrients, and treat conditions such as dehydration, electrolyte imbalance, and malnutrition. In addition, intravenous infusion therapy can also be used for drug administration, especially for drugs that cannot be taken orally or are poorly absorbed orally. Intravenous infusion ensures that the drug enters the bloodstream directly and exerts its therapeutic effect rapidly.
[0003] During intravenous infusion, due to the large number of patients and insufficient medical staff in the hospital, medical staff may not be able to detect when the patient's medication runs out in time, thus failing to handle the situation promptly. This may cause local tissue damage or hematoma to the patient.
[0004] To address these issues, we provide an empty infusion device for intravenous infusion to provide an empty infusion indicator. Utility Model Content
[0005] The purpose of this invention is to provide an empty infusion device. As the liquid level in the infusion chamber drops, the float moves downward, connecting the photoelectric switch generator and the photoelectric switch receiver. This activates the warning light and buzzer to alert medical staff, solving the problem that medical staff cannot promptly handle empty infusions when patients are receiving infusions.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is an empty infusion indicator device, including a drip chamber, a detection component, a power supply chamber, and an infusion stop component; the detection component is disposed outside the drip chamber, and the infusion stop component is disposed on the top of the drip chamber;
[0008] The detection assembly includes a mounting ring that is movably fitted onto the outside of the drip chamber. A photoelectric switch generator and a photoelectric switch receiver are mounted on the outside of the mounting ring and are positioned opposite each other. A float is movably fitted inside the drip chamber. A fixing assembly is fixedly connected to the top of the mounting ring.
[0009] The front of the power supply compartment is fixedly connected to a warning light and a buzzer. The inside of the power supply compartment is equipped with a storage battery, and the photoelectric switch generator, photoelectric switch receiver, warning light and buzzer are all electrically connected to the storage battery.
[0010] The present invention is further configured such that the fixing component includes a clamping sleeve, the top of the clamping sleeve is comb-shaped, and a fastening ring is movably sleeved on the outside of the clamping sleeve.
[0011] The present invention is further configured such that the infusion stop component includes a mounting frame, an electromagnet is fixedly connected inside the mounting frame, a clamping plate is movably sleeved inside the mounting frame, an iron plate is fixedly connected to the side of the clamping plate facing the electromagnet, and the iron plate and the electromagnet are located on both sides of the infusion tube, and the electromagnet is electrically connected to the storage battery.
[0012] The present invention is further configured such that the mounting bracket includes a first frame and a second frame, two sliding columns are fixedly connected to the inner side of the first frame, and the first frame and the clamping plate are movably sleeved on the outside of the two sliding columns, and two fastening screws are rotatably connected to the inside of the second frame, and the two fastening screws are threaded into the inside of the first frame.
[0013] The present invention is further configured such that the tops of the first frame and the second frame are both arc-shaped, and the inner sides of the first frame and the second frame are both fixedly connected with inner lining pads.
[0014] The present invention is further configured such that the drip chamber includes a chamber body and a cap, the cap is fixedly connected to the top of the chamber body, and the buoy is movably sleeved inside the chamber body.
[0015] The present invention is further provided that the top of the power supply compartment is rotatably connected to a hook.
[0016] The present invention is further configured such that a through hole is provided in the middle of the buoy, and the inner side of the buoy is funnel-shaped.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model uses a buoy that moves down as the liquid level in the drip chamber drops, which connects the photoelectric switch generator and the photoelectric switch receiver. Subsequently, the battery supplies power to the warning light and buzzer, so that the warning light and buzzer can prompt medical staff to deal with the situation in a timely manner.
[0019] 2. This utility model uses a storage battery to power an electromagnet, which generates a large amount of magnetic force. The electromagnet then attracts an iron sheet, causing the clamping plate to move and thus clamping the infusion tube, preventing injury to the patient. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the back of the power supply compartment of this utility model.
[0023] Figure 3 This is a cross-sectional view of the drip chamber of this utility model.
[0024] Figure 4 This is a structural schematic diagram of the fixing component of this utility model.
[0025] Figure 5 This is a schematic diagram of the liquid shut-off assembly of this utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 100. Droplet container; 101. Container body; 102. Cover; 200. Detection component; 201. Mounting ring; 202. Photoelectric switch generator; 203. Photoelectric switch receiver; 204. Buoy; 300. Fixing component; 301. Clamping sleeve; 302. Fastening ring; 400. Power supply container; 401. Hook; 402. Battery; 500. Liquid stop component; 501. Mounting bracket; 501a. First bracket; 501b. Second bracket; 501c. Sliding column; 501d. Fastening screw; 501e. Inner liner; 502. Electromagnet; 503. Clamping plate; 504. Iron sheet; 600. Warning light; 700. Buzzer. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] Please see Figure 1-4 This utility model is an empty infusion indicator device, including a drip chamber 100, a detection component 200, a power supply chamber 400, and an infusion stop component 500; the detection component 200 is disposed outside the drip chamber 100, and the infusion stop component 500 is disposed on the top of the drip chamber 100.
[0031] The detection component 200 includes a mounting ring 201, which is movably sleeved on the outside of the drip chamber 100. A photoelectric switch generator 202 and a photoelectric switch receiver 203 are mounted on the outside of the mounting ring 201, and the photoelectric switch generator 202 and the photoelectric switch receiver 203 are arranged opposite to each other. A float 204 is movably sleeved inside the drip chamber 100. A fixing component 300 is fixedly connected to the top of the mounting ring 201.
[0032] The front of the power supply compartment 400 is fixedly connected to a warning light 600 and a buzzer 700. The power supply compartment 400 is equipped with a storage battery 402. The photoelectric switch generator 202, photoelectric switch receiver 203, warning light 600 and buzzer 700 are all electrically connected to the storage battery 402. As the liquid level in the drip chamber 100 drops, the float 204 connects the photoelectric switch generator 202 and the photoelectric switch receiver 203, thereby activating the warning light 600 and the buzzer 700 simultaneously, which can prompt medical staff to take timely action.
[0033] Specifically, the fixing component 300 includes a clamping sleeve 301, the top of which is comb-shaped, and a fastening ring 302 is movably sleeved on the outside of the clamping sleeve 301.
[0034] The top of the power supply compartment 400 is rotatably connected to a hook 401, which makes it easier to place the power supply compartment 400.
[0035] Furthermore, the drip chamber 100 includes a chamber body 101 and a cover 102. The cover 102 is fixedly connected to the top of the chamber body 101, and the float 204 is movably sleeved inside the chamber body 101.
[0036] The buoy 204 has a through hole in the middle, and the inner side of the buoy 204 is funnel-shaped.
[0037] The operation process of this embodiment is as follows: When the patient's medication is finished, the float 204 moves down as the liquid level in the drip chamber 100 drops, thereby connecting the photoelectric switch generator 202 and the photoelectric switch receiver 203. Then, the battery 402 supplies power to the warning light 600 and the buzzer 700, so that the warning light 600 and the buzzer 700 can prompt medical staff to deal with the situation in a timely manner.
[0038] Example 2
[0039] Please see Figure 5Based on the first specific embodiment, the infusion stop assembly 500 includes a mounting frame 501. An electromagnet 502 is fixedly connected inside the mounting frame 501. A clamping plate 503 is movably sleeved inside the mounting frame 501. An iron sheet 504 is fixedly connected to the side of the clamping plate 503 facing the electromagnet 502. The iron sheet 504 and the electromagnet 502 are located on both sides of the infusion tube. The electromagnet 502 is electrically connected to the battery 402. By energizing the electromagnet 502, a large amount of magnetic force can be generated, which can attract the iron sheet 504, thereby clamping the infusion tube and preventing injury to the patient.
[0040] Specifically, the mounting bracket 501 includes a first bracket 501a and a second bracket 501b. The inner side of the first bracket 501a is fixedly connected to two sliding columns 501c, and both the first bracket 501a and the clamping plate 503 are movably sleeved on the outside of the two sliding columns 501c. The inside of the second bracket 501b is rotatably connected to two fastening screws 501d, and both fastening screws 501d are threaded into the inside of the first bracket 501a.
[0041] Furthermore, the tops of both the first frame 501a and the second frame 501b are arc-shaped, and the inner sides of both the first frame 501a and the second frame 501b are fixedly connected with inner lining pads 501e.
[0042] The operation process of this embodiment is as follows: when the patient's medication is finished, the electromagnet 502 is first powered through the storage battery 402, which generates a large amount of magnetic force. Then, the electromagnet 502 attracts the iron plate 504 and moves the clamping plate 503, thereby clamping the infusion tube and preventing the patient from being injured.
[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An empty infusion device, comprising a drip chamber (100), a detection component (200), a power supply chamber (400), and an infusion stop component (500); characterized in that: The detection component (200) is disposed outside the drip chamber (100), and the liquid stopping component (500) is disposed on the top of the drip chamber (100); The detection component (200) includes a mounting ring (201), which is movably fitted onto the outside of the drip chamber (100). A photoelectric switch generator (202) and a photoelectric switch receiver (203) are mounted on the outside of the mounting ring (201), and the photoelectric switch generator (202) and the photoelectric switch receiver (203) are arranged opposite to each other. A buoy (204) is movably fitted inside the drip chamber (100). A fixing component (300) is fixedly connected to the top of the mounting ring (201). The front of the power supply compartment (400) is fixedly connected to a warning light (600) and a buzzer (700). The power supply compartment (400) is equipped with a storage battery (402). The photoelectric switch generator (202), photoelectric switch receiver (203), warning light (600) and buzzer (700) are all electrically connected to the storage battery (402). The fixing component (300) includes a clamping sleeve (301), the top of which is comb-shaped, and a fastening ring (302) is movably sleeved on the outside of the clamping sleeve (301). The infusion stop assembly (500) includes a mounting bracket (501), an electromagnet (502) is fixedly connected inside the mounting bracket (501), a clamping plate (503) is movably sleeved inside the mounting bracket (501), an iron plate (504) is fixedly connected to the side of the clamping plate (503) facing the electromagnet (502), and the iron plate (504) and the electromagnet (502) are located on both sides of the infusion tube, and the electromagnet (502) is electrically connected to the battery (402); The mounting bracket (501) includes a first frame (501a) and a second frame (501b). The inner side of the first frame (501a) is fixedly connected to two sliding columns (501c), and the first frame (501a) and the clamping plate (503) are movably sleeved on the outside of the two sliding columns (501c). The inside of the second frame (501b) is rotatably connected to two fastening screws (501d), and the two fastening screws (501d) are threaded into the inside of the first frame (501a). The tops of the first frame (501a) and the second frame (501b) are both arc-shaped, and the inner sides of the first frame (501a) and the second frame (501b) are fixedly connected with inner pads (501e).
2. The empty fluid indicator for intravenous infusion according to claim 1, characterized in that, The drip chamber (100) includes a chamber body (101) and a cover (102). The cover (102) is fixedly connected to the top of the chamber body (101), and the buoy (204) is movably sleeved inside the chamber body (101).
3. The empty fluid indicator for intravenous infusion according to claim 1, characterized in that, The top of the power supply compartment (400) is rotatably connected to a hook (401).
4. The empty fluid indicator for intravenous infusion according to claim 1, characterized in that, The buoy (204) has a through hole in the middle, and the inner side of the buoy (204) is funnel-shaped.