Drainage bag level alarm device

Abstract

The utility model discloses a drainage bag liquid level alarm device relates to medical auxiliary instrument technical field, aims at solving the problem of manpower consumption, easy to leak, easy to pollute and inconvenient to use in prior art, adopts the technical scheme, including surface layer, middle layer circuit board and lower layer, the surface layer with lower layer encloses into sealed cavity, and the middle layer circuit board is located in sealed cavity, surface layer, the middle layer circuit board with lower layer all adopt flexible material, and lower layer is in line with the lateral wall of drainage bag, and the liquid level detection in cooperation middle layer circuit board to drainage bag, through adopting the liquid level detection of capacitive liquid level sensor, need not contact with the liquid in drainage bag, avoids the risk of cross infection, guarantees medical safety.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, specifically a drainage bag liquid level alarm device. Background Technology

[0002] In clinical medicine, drainage bags are widely used to collect bodily fluids such as urine, pleural effusion, and ascites from patients. Medical staff need to regularly monitor the fluid level in the drainage bag to ensure timely replacement and prevent reflux due to excessive fluid levels, which could lead to complications such as infection.

[0003] Currently, medical staff mainly rely on visual inspection to determine the fluid level inside the drainage bag. This method is not only labor-intensive but also prone to oversight due to negligence or busy schedules, posing potential risks to patient treatment. Although some drainage bag fluid level monitoring devices exist on the market, most require contact with the liquid, which can easily cause contamination. Chinese patent CN201822212599.1 discloses a drainage bag fluid level monitoring and alarm device, which can achieve fluid level alarm, but the aforementioned existing patent has a rigid structure and is installed at the sealing opening of the drainage bag, making it difficult to flexibly attach to drainage bags of different shapes, resulting in poor usability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a drainage bag liquid level alarm device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses a drainage bag liquid level alarm device. The technical solution adopted is that it includes a surface layer, a middle circuit board and a lower layer, wherein the surface layer and the lower layer form a sealed cavity, and the middle circuit board is disposed in the sealed cavity.

[0006] The outer layer, the middle circuit board, and the lower layer are all made of flexible materials. The lower layer is attached to the side wall of the drainage bag and works with the middle circuit board to detect the liquid level in the drainage bag. The liquid level is detected by using a capacitive liquid level sensor, which does not need to come into contact with the liquid in the drainage bag, thus avoiding the risk of cross-infection and ensuring medical safety.

[0007] As a preferred embodiment of this utility model, both the outer layer and the lower layer are made of medical-grade silicone material, and the two are bonded together by a first adhesive layer.

[0008] As a preferred technical solution of this utility model, the middle layer circuit board includes a liquid level detection module, a control module, an alarm module and an independent power supply module. It uses a small lithium battery as an independent power supply, which does not require an external power supply and is not limited by the usage scenario, thus improving the portability and ease of use of the device.

[0009] As a preferred embodiment of this utility model, the liquid level detection module adopts a capacitive liquid level sensor, and the liquid level detection module is installed on the facing surfaces of the middle layer circuit board and the lower layer.

[0010] As a preferred technical solution of this utility model, the surface layer is provided with buttons, and there are multiple sets of buttons, and the multiple sets of buttons correspond to the positions of the middle layer circuit board for controlling the middle layer circuit board.

[0011] As a preferred technical solution of this utility model, the alarm module includes a buzzer and an LED indicator. The alarm module is located on the facing surface of the middle circuit board and the surface layer, and the alarm module is exposed on the outside of the surface layer. Through the cooperation of the liquid level detection module and the alarm module, when the liquid level in the drainage bag reaches the preset threshold, the device can promptly remind medical staff through a dual alarm method of sound and light, reducing the risk caused by human negligence and improving the efficiency and quality of nursing work.

[0012] As a preferred technical solution of this utility model, the lower layer and the opposite surface of the drainage bag are further provided with a second adhesive layer for bonding. Both the surface layer and the lower layer are made of medical-grade silicone material, which can be flexibly attached to drainage bags of different shapes and sizes, with a wide range of applications, and the adhesion is firm and not easy to fall off.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention uses a capacitive liquid level sensor for liquid level detection, eliminating the need for contact with the liquid inside the drainage bag, thus avoiding the risk of cross-infection and ensuring medical safety; both the surface and bottom layers are made of medical-grade silicone material, allowing for flexible attachment to drainage bags of different shapes and sizes, resulting in a wide range of applications and a firm, non-detachable fit; a small lithium battery serves as an independent power source, eliminating the need for an external power supply and limiting usage scenarios, thereby improving the device's portability and ease of use; through the cooperation of the liquid level detection module and the alarm module, when the liquid level inside the drainage bag reaches a preset threshold, the device can promptly alert medical staff through both sound and light alarms, reducing the risk of human negligence and improving the efficiency and quality of nursing care; the control module uses a low-power microcontroller, with all modules working collaboratively, reducing the device's power consumption and extending battery life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a partial sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the middle layer circuit board of this utility model.

[0018] In the diagram: 1. Surface layer; 2. Middle layer circuit board; 3. Lower layer; 4. Sealed cavity; 5. First adhesive layer; 6. Second adhesive layer; 11. Button; 21. Control module; 22. Capacitive liquid level sensor; 23. Alarm module. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0020] like Figures 1 to 4 As shown, this utility model discloses a drainage bag liquid level alarm device. The technical solution adopted includes a surface layer 1, a middle circuit board 2 and a lower layer 3. The surface layer 1, the middle circuit board 2 and the lower layer 3 are all made of flexible material. The surface layer 1 and the lower layer 3 form a sealed cavity 4. The surface layer 1 and the lower layer 3 are both made of medical grade silicone material and are bonded together by a first adhesive layer 5.

[0021] Made of medical-grade silicone material, it has good flexibility and adhesion, and can adapt to drainage bags of different shapes and sizes, ensuring that the device can be stably attached to the outer wall of the drainage bag without damaging it.

[0022] The lower layer 3 is attached to the side wall of the drainage bag and works with the middle circuit board 2 to detect the liquid level in the drainage bag. A second adhesive layer 6 for bonding is also provided on the facing surface of the lower layer 3 and the drainage bag.

[0023] The middle layer circuit board 2 is disposed inside the sealed cavity 4;

[0024] The middle circuit board 2 includes a liquid level detection module, a control module 21, an alarm module 23, and an independent power supply module.

[0025] Control module 21: Employs a low-power microcontroller and is electrically connected to the liquid level detection module, alarm module 23, and independent power supply module. Control module 21 has a preset liquid level threshold. When the liquid level detected by the liquid level detection module reaches or exceeds this threshold, control module 21 sends a trigger signal to alarm module 23.

[0026] Independent power supply module: Utilizing a small lithium battery, this module provides power to the liquid level detection module, control module 21, and alarm module 23. The lithium battery is small, has a large capacity, and is rechargeable, ensuring the device can operate independently for extended periods. Additionally, a charging interface is provided for convenient charging of the lithium battery.

[0027] The liquid level detection module uses a capacitive liquid level sensor 22, and the liquid level detection module is installed on the facing surfaces of the middle layer circuit board 2 and the lower layer 3.

[0028] Liquid level detection module: A capacitive liquid level sensor 22 is used. This sensor is installed on the inner side of the lower layer 3, in contact with the outer wall of the drainage bag. It realizes liquid level monitoring and warning functions by identifying two different media, air and liquid, and does not need to be in direct contact with the liquid, effectively avoiding the risk of contamination.

[0029] Its working principle is as follows: The capacitive liquid level sensor 22 utilizes the difference between the capacitance value when in contact with air and the capacitance value when in contact with liquid, and realizes liquid level measurement and height determination after electrical signal conversion.

[0030] The surface layer 1 is provided with buttons 11, and there are multiple sets of buttons 11. The multiple sets of buttons 11 correspond to the positions of the middle circuit board 2 and are used to control the middle circuit board 2.

[0031] The alarm module 23 includes a buzzer and an LED indicator. The alarm module 23 is disposed on the facing surface of the middle layer circuit board 2 and the surface layer 1, and the alarm module 23 is exposed on the outside of the surface layer 1.

[0032] Alarm module 23 includes a buzzer and an LED indicator, both electrically connected to control module 21. When a trigger signal is received from control module 21, the buzzer sounds an audible alarm, and the LED indicator emits a visual alarm, providing a dual reminder to medical staff that the fluid level in the drainage bag has reached the threshold.

[0033] The working principle of this utility model:

[0034] During assembly, the liquid level detection module, control module 21, alarm module 23, and independent power supply module are connected via wires according to the circuit connection relationship. Then, each module is fixed to the lower layer 3, ensuring that the detection surface of the capacitive liquid level sensor 22 faces the inside of the lower layer 3, and that the buzzer and LED indicator are exposed on the surface layer 1 for easy sound transmission and light observation. Finally, the device is encapsulated, ensuring a secure connection between modules and a certain degree of waterproofing.

[0035] When using, clean the area on the outer wall of the drainage bag where the device will be attached, removing surface grease and dust.

[0036] Peel off the protective film on the second adhesive layer 6, attach the device to the clean position of the drainage bag, and gently press to ensure that the lower layer 3 is tightly attached to the outer wall of the drainage bag. According to the actual situation of the drainage bag, use the button 11 on the surface layer 1 in conjunction with the control module 21 to preset the liquid level threshold. The liquid level threshold is the position where the device is attached to the drainage bag. Turn on the power switch, and the device will start working normally. When the liquid level reaches the threshold, the device will alarm. After the medical staff handles the situation accordingly, press the reset button to stop the alarm.

[0037] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0038] Components not described in detail in this article are existing technologies.

[0039] 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. A liquid level alarm device for a drainage bag, characterized in that: It includes a top layer (1), a middle layer circuit board (2) and a bottom layer (3), the top layer (1) and the bottom layer (3) forming a sealed cavity (4), and the middle layer circuit board (2) is disposed inside the sealed cavity (4); The surface layer (1), the middle circuit board (2) and the lower layer (3) are all made of flexible material, and the lower layer (3) is attached to the side wall of the drainage bag, and works with the middle circuit board (2) to detect the liquid level in the drainage bag.

2. The drainage bag liquid level alarm device according to claim 1, characterized in that: Both the surface layer (1) and the lower layer (3) are made of medical-grade silicone material, and they are bonded together by a first adhesive layer (5).

3. The drainage bag liquid level alarm device according to claim 1, characterized in that: The middle layer circuit board (2) includes a liquid level detection module, a control module (21), an alarm module (23), and an independent power supply module.

4. The drainage bag liquid level alarm device according to claim 3, characterized in that: The liquid level detection module uses a capacitive liquid level sensor (22), and the liquid level detection module is installed on the facing surfaces of the middle layer circuit board (2) and the lower layer (3).

5. The drainage bag liquid level alarm device according to claim 3, characterized in that: The surface layer (1) is provided with buttons (11), and there are multiple sets of buttons (11), and the multiple sets of buttons (11) correspond to the positions of the middle circuit board (2) for controlling the middle circuit board (2).

6. The drainage bag liquid level alarm device according to claim 3, characterized in that: The alarm module (23) includes a buzzer and an LED indicator. The alarm module (23) is located on the facing surfaces of the middle layer circuit board (2) and the surface layer (1), and the alarm module (23) is exposed outside the surface layer (1).

7. The drainage bag liquid level alarm device according to claim 1, characterized in that: The lower layer (3) and the drainage bag facing each other are provided with a second adhesive layer (6) for bonding.

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