Alarm device capable of preventing unplanned extubation of patient

The infrared sensor monitors the position changes of the catheter and combines the alarm module to realize sound-light alarm and remote communication, which solves the problem of unplanned extubation caused by the unfixed catheter and improves patient safety and treatment effects.

CN223284658UActive Publication Date: 2025-08-29ZHONGSHAN HOSPITAL AFFILIATED TO FUDAN UNIV XIAMEN HOSPITAL
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Patent Information

Application Number
CN202422605951.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-08-29
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

In the prior art, catheters are prone to accidental disengagement due to unfixed fixation rather than planned extubation, which increases patient pain and medical risks, and lacks an effective early warning mechanism.

Method used

Infrared sensors are used to monitor the position changes of the catheter and skin, and notify medical staff in real time through signal transmitters and alarm modules, including microcontrollers, signal receivers, prompt lights and buzzers, to realize sound-light alarms and remote communication.

Benefits of technology

Effectively prevent unplanned catheter extubation, promptly notify medical staff, reduce accidents, and reduce patients' pain and medical risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an alarm device capable of preventing unplanned extubation of patient, which comprises a monitoring module, an alarm module and a communication module, the monitoring module comprises a base, an infrared sensor and a signal transmitter, when a catheter fixing adhesive tape is separated from a catheter or the skin of patient, the base is separated or displaced along with the catheter fixing adhesive tape, and the communication module is communicated with the communication module. The infrared sensor collects position data and sends the position data to the alarm module through the signal emitter, the alarm module comprises a microcontroller, a signal receiver, a signal receiving prompt lamp, an alarm prompt lamp and a buzzer, when an abnormity occurs, the microcontroller controls the alarm prompt lamp to be normally on or flicker, and when the abnormity occurs, the signal receiver sends the alarm prompt lamp to the buzzer. Meanwhile, the buzzer is controlled to give out alarm sound, and alarm signals are sent to a nurse station end through the communication module. According to the utility model, the unplanned extubation of a patient can be prevented, and when the unplanned extubation occurs, the on-duty medical staff is immediately notified, so that accidents are prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an alarm device capable of preventing unplanned extubation of a patient. Background Art

[0002] Unplanned extubation, also known as accidental extubation, refers to the patient's intubation when the catheter slips off on its own or the patient removes it without the medical staff's consent. It also includes the medical staff removing the catheter prematurely or the tube falling out due to improper operation. It is one of the common adverse events in clinical practice. Unplanned extubation can be caused by a variety of factors and can lead to bleeding, infection, and suffocation in patients, increasing patient pain, affecting treatment effectiveness, thereby prolonging hospitalization and increasing medical costs. In order to reduce and prevent the occurrence of unplanned extubation, medical staff generally adopt risk assessment, multidisciplinary management, the use of sedatives, improved tube fixation methods and physical restraints. Common catheters in clinical practice include nasogastric tubes, urinary catheters, anal tubes, chest drainage tubes, abdominal drainage tubes, etc. After the drainage tube is placed in the human body, it is usually fixed by suture, balloon or catheter fixation tape. Taking the nasogastric tube as an example, the nasogastric tube is inserted from the nasal cavity through the esophagus into the stomach to achieve the purpose of eating or drainage. The nasogastric tube is only fixed with a catheter fixing tape, which is easy to fall out. When it falls out, the catheter fixing tape is often separated from the skin of the nose, and the other end of the catheter fixing tape is still stuck to the catheter. In addition, unplanned extubation is more likely to occur in ordinary wards. If it is not discovered in time, adverse events or even medical accidents are likely to occur. Therefore, it is necessary to design an alarm device that can prevent patients from unplanned extubation and provide early warning for medical staff. When unplanned extubation occurs, the medical staff on duty will be notified immediately to prevent accidents. Utility Model Content

[0003] The purpose of the utility model is to provide an alarm device which can prevent the patient from unplanned extubation.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An alarm device that can prevent patients from unplanned extubation includes a monitoring module, an alarm module and a communication module. The monitoring module includes a base, an infrared sensor and a signal transmitter. The base is arranged on the inner side of the catheter fixing tape and is fixed to the catheter and the patient's skin through the catheter fixing tape. The infrared sensor is arranged on the base, and its monitoring head is closely attached to the patient's skin for monitoring its position relative to the patient's skin. When the catheter fixing tape is detached from the catheter or the patient's skin, the base follows the detachment or displacement. The infrared sensor collects position data and sends it to the alarm module through the signal transmitter. The alarm module includes a microcontroller, a signal receiver, a signal receiving prompt light, an alarm prompt light and a buzzer. The microcontroller receives signal data from the signal transmitter through the signal receiver. When no abnormality occurs, the microcontroller controls the signal receiving prompt light to be constantly on or flashing. When an abnormality occurs, the microcontroller controls the alarm prompt light to be constantly on or flashing, and simultaneously controls the buzzer to sound an alarm and sends the alarm signal to the nurse station through the communication module.

[0006] Furthermore, the base is provided with a bottom plate and a branch pipe, the bottom plate is provided with a channel for installing a catheter, the branch pipe is arranged on the bottom plate, the infrared sensor is installed on the support rod, and its monitoring head is arranged at the bottom of the bottom plate through the branch pipe, the bottom plate and the monitoring head are attached to the patient's skin and are adhered to the bottom plate and the patient's skin through the catheter fixing tape.

[0007] Furthermore, the monitoring module also includes a first shell and a first battery, the first shell is installed on the support pole, the infrared sensor, signal transmitter and first battery are installed in the first shell, and the first battery is connected to and supplies power to the infrared sensor and signal transmitter.

[0008] Furthermore, the monitoring module also includes a first charging interface for charging the first battery.

[0009] Furthermore, the alarm module also includes a second shell and a second battery, and the microcontroller, signal receiver, signal reception indicator light, alarm indicator light, buzzer and second battery are installed in the second shell, and the second battery is connected to and powers the microcontroller, signal receiver, signal reception indicator light, alarm indicator light and buzzer.

[0010] Furthermore, the alarm module also includes a second charging interface for charging a second battery.

[0011] Furthermore, the second housing is provided with a switch button, and the switch button is connected to a microcontroller to control its on / off.

[0012] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0013] The utility model utilizes the infrared reflection principle to monitor whether the catheter fixed on the patient's skin is displaced through the infrared sensor of the monitoring module, and sends a signal to the alarm module in real time. When the catheter fixing tape fixing the catheter is loose or displaced, the medical staff is notified in time to rush to the scene, thus avoiding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the monitoring module of the utility model;

[0016] Figure 3 This is a schematic diagram of the alarm module of the utility model.

[0017] Description of reference numerals:

[0018] Monitoring module 1; alarm module 2; communication module 3; nurse station 4; base 11; infrared sensor 12; signal transmitter 13; first battery 14; microcontroller 21; signal receiver 22; signal reception indicator light 23; alarm indicator light 24; buzzer 25; second battery 26. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are all based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element of the present invention must have a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] Example

[0022] Cooperate Figures 1 to 3As shown, the utility model discloses an alarm device that can prevent patients from unplanned extubation, including a monitoring module 1, an alarm module 2 and a communication module 3. The monitoring module 1 includes a base 11, an infrared sensor 12 and a signal transmitter 13. The base 11 is arranged on the inner side of the catheter fixing tape and is fixed to the catheter and the patient's skin through the catheter fixing tape. The infrared sensor 12 is arranged on the base 11, and its monitoring head is closely attached to the patient's skin for monitoring the position relative to the patient's skin. When the catheter fixing tape is separated from the catheter or the patient's skin, the base 11 is separated or displaced accordingly, and the infrared sensor 12 collects position data and sends it to the alarm module 2 through the signal transmitter 13. The alarm module 2 includes a microcontroller 21, a signal receiver 22, a signal receiving prompt light 23, an alarm prompt light 24 and a buzzer 25. The microcontroller 21 receives the signal data of the signal transmitter 13 through the signal receiver 22. When no abnormality occurs, the microcontroller 21 controls the signal receiving prompt light 23 to be always on or flashing. When an abnormality occurs, the microcontroller 21 controls the alarm prompt light 24 to be always on or flashing, and at the same time controls the buzzer 25 to sound an alarm and send the alarm signal to the nurse station 4 through the communication module 3.

[0023] The communication module 3 of this embodiment is preferably a GPRS module, a Bluetooth module or a WiFi module.

[0024] This embodiment utilizes the infrared reflection principle. The infrared sensor 12 of the monitoring module 1 monitors whether the catheter fixed on the patient's skin has moved, and sends a signal to the alarm module 2 in real time. When the catheter fixing tape fixing the catheter becomes loose or the pipeline shifts, medical staff is notified in time to rush to the scene, thus avoiding accidents.

[0025] The base 11 is provided with a bottom plate and a branch pipe. The bottom plate is provided with a channel for installing a catheter. The branch pipe is arranged on the bottom plate. The infrared sensor 12 is installed on the support rod. Its monitoring head passes through the branch pipe and is arranged at the bottom of the bottom plate. The bottom plate and the monitoring head are attached to the patient's skin and are adhered to the bottom plate and the patient's skin through the catheter fixing tape.

[0026] The monitoring module 1 also includes a first shell and a first battery 14. The first shell is installed on the support pole. The infrared sensor 12, the signal transmitter 13 and the first battery are installed in the first shell. The first battery 14 is connected to and supplies power to the infrared sensor 12 and the signal transmitter 13.

[0027] The monitoring module 1 further comprises a first charging interface for charging the first battery, preferably a USB charging interface.

[0028] The monitoring module 1 further includes a monitoring controller for receiving data from the infrared sensor 12 and controlling the signal transmitter 13 to send signal data to the alarm module 2 .

[0029] The alarm module 2 also includes a second shell and a second battery 26. The microcontroller 21, signal receiver 22, signal reception indicator light 23, alarm indicator light 24, buzzer 25 and second battery are installed in the second shell. The second battery is connected to and supplies power to the microcontroller 21, signal receiver 22, signal reception indicator light 23, alarm indicator light 24 and buzzer 25.

[0030] The alarm module 2 further comprises a second charging interface for charging the second battery, preferably a USB charging interface.

[0031] The second housing is provided with a switch button, which is connected to the microcontroller 21 to control its on / off.

[0032] The catheter fixing tape of this embodiment is preferably an I-shaped catheter fixing tape.

[0033] This embodiment can also be connected to the alarm module 2 through a remote APP. The alarm module 2 is equipped with a WiFi module for network communication, and medical staff can monitor remotely. When the alarm module 2 sounds an alarm, the nurse station 4 also receives the alarm information at the same time, and takes remedial measures in time to avoid the occurrence of unplanned extubation.

[0034] One alarm module 2 can simultaneously receive signal sources from multiple monitoring modules 1 and can therefore be used for patients with multiple catheters.

[0035] The signal receiver 22 and the signal transmitter 13 of this embodiment can perform data transmission via a Bluetooth module.

[0036] Taking the gastric tube as an example, an I-shaped catheter fixing tape is cut from a piece of elastic soft cotton catheter fixing tape with a length of 6 cm and a width of 5 cm. It has the characteristics of high breathability, strong adhesion and low allergy. The catheter fixing tape is adhered to the nose, and the monitoring module 1 is attached to the skin of the patient's nose. The base 11 is covered on the catheter and tightly attached to the patient's skin, which plays a role in fixing the gastric tube; an infrared sensor 12 is installed on the bottom plate of the base 11 for position monitoring; an alarm module 2 has a microcontroller 21, a switch button, a signal receiving indicator light 23, an alarm indicator light 24, a second charging connector and a hook. When the signal receiving indicator light 23 receives a signal, it flashes. When displacement occurs, the alarm indicator light 24 and the buzzer 25 immediately emit sound and light alarms. A light can also be provided for lighting at night.

[0037] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An alarm device capable of preventing unplanned extubation of a patient, characterized by: The invention comprises a monitoring module, an alarm module and a communication module. The monitoring module comprises a base, an infrared sensor and a signal transmitter. The base is arranged on the inner side of the catheter fixing tape and is fixed to the catheter and the patient's skin through the catheter fixing tape. The infrared sensor is arranged on the base, and its monitoring head is tightly attached to the patient's skin for monitoring the position relative to the patient's skin. When the catheter fixing tape is detached from the catheter or the patient's skin, the base follows the detachment or displacement. The infrared sensor collects position data and sends it to the alarm module through the signal transmitter. The alarm module comprises a microcontroller, a signal receiver, a signal receiving prompt light, an alarm prompt light and a buzzer. The microcontroller receives signal data from the signal transmitter through the signal receiver. When no abnormality occurs, the microcontroller controls the signal receiving prompt light to be constantly on or flashing. When an abnormality occurs, the microcontroller controls the alarm prompt light to be constantly on or flashing, and at the same time controls the buzzer to sound an alarm and sends the alarm signal to the nurse station through the communication module.

2. The alarm device for preventing unplanned extubation of a patient according to claim 1, characterized in that: The base is provided with a bottom plate and a branch pipe, the bottom plate is provided with a channel for installing a catheter, the branch pipe is arranged on the bottom plate, the infrared sensor is installed on the support rod, and its monitoring head is arranged at the bottom of the bottom plate through the branch pipe. The bottom plate and the monitoring head are attached to the patient's skin and are adhered to the bottom plate and the patient's skin through the catheter fixing tape.

3. The alarm device for preventing unplanned extubation of a patient according to claim 2, characterized in that: The monitoring module also includes a first shell and a first battery. The first shell is installed on the support pole. The infrared sensor, signal transmitter and first battery are installed in the first shell. The first battery is connected to and supplies power to the infrared sensor and signal transmitter.

4. The alarm device for preventing unplanned extubation of a patient according to claim 3, characterized in that: The monitoring module further includes a first charging interface for charging the first battery.

5. The alarm device for preventing unplanned extubation of a patient according to claim 3, characterized in that: The alarm module also includes a second shell and a second battery. The microcontroller, signal receiver, signal reception indicator light, alarm indicator light, buzzer and second battery are installed in the second shell. The second battery is connected to and supplies power to the microcontroller, signal receiver, signal reception indicator light, alarm indicator light and buzzer.

6. The alarm device for preventing unplanned extubation of a patient according to claim 5, characterized in that: The alarm module further includes a second charging interface for charging a second battery.

7. The alarm device for preventing unplanned extubation of a patient according to claim 6, characterized in that: The second housing is provided with a switch button, and the switch button is connected to the microcontroller to control its on / off.