WO2023066195A1

WO2023066195A1 - Smart pulse detection, alarm and first-aid guidance system for sudden cardiac arrest

Info

Publication number: WO2023066195A1
Application number: PCT/CN2022/125662
Authority: WO
Inventors: 麦惠强; 朱柳莹
Original assignee: 麦惠强
Priority date: 2021-10-22
Filing date: 2022-10-17
Publication date: 2023-04-27
Also published as: CN113951857A

Abstract

A smart pulse detection, alarm and first-aid guidance system for sudden cardiac arrest. The system comprises a processing module (1), wherein the processing module (1) is connected to a storage module (2) for storing rescue information for a case where sudden cardiac arrest occurs, an input module (3) for inputting an operation instruction and an alarm control instruction, a positioning module (4) for positioning location information, a first pulse measurement sensor module (5) for detecting whether a person to be rescued has a beating pulse, a communication module (6) for raising an alarm to a "120" center and sending the positioned location information when it is detected that said person has no beating pulse, and a display module (7) for displaying the stored rescue information when it is detected that said person has no beating pulse. The system realizes pulse sensing for a person to be rescued from sudden cardiac death, and automatically raises an alarm and displays rescue information when it is determined that said person has a beating pulse, thereby increasing the chances of rescue.

Description

Intelligent cardiac arrest pulse detection, alarm and first aid guidance system

[technical field]

The invention relates to an intelligent cardiac arrest pulse detection, alarm and first aid guidance system.

[Background technique]

About 600,000 people suffer from sudden cardiac death every year in my country, 90% of which occur outside the hospital, and the success rate of rescue is less than 2%. After cardiopulmonary arrest, the most important immediate cardiopulmonary resuscitation, the success rate of resuscitation drops by 10% every minute of delay, and it is basically hopeless after 10 minutes. It is impossible to wait for the ambulance professional medical personnel to arrive at the scene for rescue. It is very important to popularize cardiopulmonary resuscitation among the people.

At present, only two points are needed for teaching non-professionals: 1. Confused, not answering, 2. No breathing or only sigh-like breathing. However, it is still very difficult for ordinary citizens to judge whether they are breathing, so they dare not take action for a long time, resulting in missing the golden time for rescue. Of course, there will be deviations in judging the heartbeat simply by breathing. For example, in the event of a grand epileptic seizure or a severe asthma attack, there may be situations where there is no normal breathing but there is still a heartbeat. These situations do not need to be pressed.

[Content of the invention]

The invention overcomes the disadvantages of the above-mentioned technologies, and provides an intelligent cardiac arrest pulse detection, alarm and first aid guidance system.

To achieve the above object, the present invention adopts the following technical solutions:

The intelligent cardiac arrest pulse detection, alarm and first aid guidance system includes a processing module connected with a storage module for storing rescue information in the case of cardiac arrest, an input module for inputting operation instructions and alarm control instructions, A positioning module for locating position information, a first pulse measurement sensor module for detecting that the rescued person has pulse beating, a communication module that sends an alarm to the 120 center and sends positioning position information when detecting that the rescued person has no pulse beating, A display module for displaying stored rescue information when a pulseless beating of the rescued is detected.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the processing module is connected with a camera module.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the first pulse measurement sensor module is integrated into the camera module.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the first pulse measurement sensor module is a photoelectric pulse measurement sensor module.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the processing module is connected with a second pulse measurement sensor module that is in contact with the wrist for detecting its own pulse.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the photoelectric pulse measurement sensor module includes a light-emitting diode emitting a specific wavelength, a photoelectric conversion device for receiving reflected light and converting it into an electrical signal A device, an amplifier composed of a low-pass filter and an operational amplifier for amplifying the reflected light electrical signal, and a voltage dividing resistor for dividing the voltage of the amplified electrical signal to facilitate collection by the processing module.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that: the input module and the display module are combined into a touch screen module.

The above-mentioned intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that the first aid information includes pictures or videos indicating the compression location, compression depth, and compression frequency.

The beneficial effects of the present invention are:

The invention directly detects the radial arteries on both sides of the rescued person through the photoelectric pulse measurement sensor module, and can quickly and intelligently judge whether the rescued person has a pulse. If no pulse is detected, it can be judged as cardiac arrest. The 120 center calls the police, and displays rescue information through the display module, instructing rescuers to immediately perform hand-held cardiopulmonary resuscitation heart compressions for the rescued. Rescue information includes compression locations, depths, and frequency-guided compression speeds, thereby greatly improving the success rate of rescue.

[Description of drawings]

Fig. 1 is a schematic diagram of Embodiment 1 of the present invention;

Fig. 2 is the schematic diagram of embodiment two of the present invention

Fig. 3 is a schematic diagram of a photoelectric pulse measurement sensor module;

Fig. 4 is a schematic diagram of equipment according to Embodiment 1 of the present invention;

Fig. 5 is a schematic diagram of equipment according to Embodiment 2 of the present invention;

Fig. 6 is a partial view of the ambulance information in the present invention.

[Detailed ways]

A further detailed description will be made below in conjunction with the accompanying drawings and embodiments of the present invention:

Intelligent cardiac arrest pulse detection, alarm and first aid guidance system, including processing module 1, processing module 1 is connected with storage module 2 for storing rescue information in the case of pulse arrest, input for inputting operation instructions and alarm control instructions Module 3, a positioning module 4 for locating position information, a first pulse measurement sensor module 5 for detecting that the rescued person has a pulse, an alarm to the 120 center and sending positioning position information when detecting that the rescued person has no pulse beating The communication module 6 and the display module 7 for displaying the stored rescue information when no pulse of the rescued person is detected.

Embodiment 1: As shown in Figure 1 and Figure 4, when the system is applied to a smart phone, the steps of the control method are as follows:

a. When a rescued person is found lying on the ground, the rescuer can start the corresponding APP to work through the input module 3, and the processing module 1 starts the first pulse measurement sensor module 5 on the smart phone to work. The sensor module 5 respectively detects the radial artery on both sides of the rescued person;

B, processing module 1 receives first pulse measurement sensor module 5 and detects the pulse beating information and judges, when processing module 1 judges that there is no pulse beating, processing module 1 reports to the 120 center by communication module 6 and sends the location of positioning module 4 Location information, realize the automatic alarm function and enable the ambulance to arrive at the scene quickly;

c. At the same time, when the processing module 1 judges that the rescuer has no pulse, the display module 7 displays the rescue information in the storage module 2, wherein the rescue information is shown in Figure 5, including pictures indicating the pressing position, pressing depth, and pressing frequency Or videos to guide the rescuer to perform manual cardiopulmonary resuscitation heart compressions for the rescued immediately, thereby improving the success rate of rescue.

The above control method is assisted by an APP or a WeChat applet. Simultaneously in this case, when applied to smart phones, the processing module 1 is connected with a camera module 8, and the first pulse measurement sensor module 5 is integrated into the camera module 8, so that the first pulse measurement sensor module 5 is hidden in the camera module 8, without Changing the shape of the smart phone also plays a role in protecting the first pulse measurement sensor module 5 .

Embodiment two:

As shown in Figure 2 and Figure 5, when the system is applied to a sports watch, the processing module 1 is connected with a second pulse measurement sensor module 9 which is arranged on the lower side of the sports watch and is in contact with the wrist for detecting its own pulse. The sensor module 9 is a pulse measurement sensor made by pulse measurement method, electrocardiographic signal method or photoplethysmography principle.

After the user wears a sports watch, when the user suffers sudden cardiac death, the second pulse measurement sensor module 9 does not detect the user's own pulse, and when the processing module 1 judges that there is no pulse beating, the processing module 1 communicates to the 120 through the communication module 6. The center reports to the police and sends the positioning position information of the positioning module 4, realizes the automatic alarm function and enables the ambulance to arrive at the scene quickly.

When the rescued person who fell to the ground is found, the control method is the same as that in Embodiment 1, and the steps are as follows:

d. The rescuer can start the corresponding APP work through the input module 3, and the processing module 1 starts the work of the first pulse measurement sensor module 5 on the smart phone. Radial artery;

E, processing module 1 receives first pulse measurement sensor module 5 and detects the pulse beating information and judges, when processing module 1 is judged as no pulse beating, processing module 1 reports to the 120 center by communication module 6 and sends the location of positioning module 4 Location information, realize the automatic alarm function and enable the ambulance to arrive at the scene quickly;

f. At the same time, when the processing module 1 judges that the rescuer has no pulse, the rescue information in the storage module 2 is displayed through the display module 7, wherein the rescue information is shown in Figure 6, including pictures indicating the pressing position, pressing depth, and pressing frequency Or videos to guide the rescuer to perform manual cardiopulmonary resuscitation heart compressions for the rescued immediately, thereby improving the success rate of rescue.

In this case, the first pulse measurement sensor module 5 is a photoelectric pulse measurement sensor module. The photoelectric pulse measurement sensor module includes a light-emitting diode that emits a specific wavelength, a photoelectric converter for receiving reflected light and converting it into an electrical signal, and a low-pass pulse measurement sensor module. The filter and the operational amplifier form an amplifier for amplifying the reflected optical signal, and a voltage dividing resistor for dividing the voltage of the amplified electrical signal to facilitate the collection by the processing module 1 .

As shown in Figure 4, the photoelectric pulse measurement sensor module adopts the photoelectric volumetric method. The basic principle is to use the difference in light transmittance caused by human tissue when the blood vessels pulsate to measure the pulse. The sensor it uses consists of two parts: a light source and a photoelectric transducer. The light source generally adopts a light-emitting diode with a certain wavelength of 500nm-700nm that is selective to oxygen and hemoglobin in arterial blood. When the light beam passes through the peripheral blood vessels of the human body, the light transmittance of the light beam changes due to the change of the arterial pulsation and congestion volume. At this time, the photoelectric converter receives the light reflected by the human body tissue, converts it into an electrical signal, and amplifies and outputs it. Since the pulse is a signal that changes periodically with the beating of the heart, the volume of the arterial blood vessel also changes periodically, so the change cycle of the electrical signal of the photoelectric transducer is the pulse rate. According to relevant literature and experimental results, waves with a wavelength of about 560nm can reflect the information of the superficial arterioles of the skin, and are suitable for extracting pulse signals. The sensor uses a green LED with a peak wavelength of 515nm, the model is AM2520, and the optical receiver uses APDS‐9008, with a peak wavelength of 565nm. The peak wavelengths of the two are similar and the sensitivity is high. In addition, because the frequency band of the pulse signal is generally between 0.05 and 200 Hz, the signal amplitude is very small, generally at the level of millivolts, and is easily interfered by various signals. A low-pass filter and an amplifier composed of an operational amplifier MCP6001 are used behind the sensor to amplify the signal by 330 times. At the same time, a voltage dividing resistor is used to set the DC bias voltage to 1/2 of the power supply voltage, so that the amplified signal can be easily Well captured by processing module 1.

Claims

The intelligent cardiac arrest pulse detection, alarm and first aid guidance system is characterized in that it includes a processing module (1), and the processing module (1) is connected with a storage module (2) for storing rescue information in the case of cardiac arrest, An input module (3) for inputting operation instructions and alarm control instructions, a positioning module (4) for locating position information, a first pulse measurement sensor module (5) for detecting that the rescued person has a pulse beat, and A communication module (6) that sends an alarm to the 120 center and sends positioning position information when the rescued person is detected without a pulse, and a display module (7) that displays stored rescue information when the rescued person is detected without a pulse.
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 1, characterized in that: the processing module (1) is connected with a camera module (8).
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 2, characterized in that: the first pulse measurement sensor module (5) is integrated into the camera module (8).
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 1 is characterized in that: the first pulse measurement sensor module (5) is a photoelectric pulse measurement sensor module.
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 1, characterized in that: the processing module (1) is connected with a second pulse measurement sensor module (9) that is in contact with the wrist for detecting its own pulse .
According to the intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 4, it is characterized in that: the photoelectric pulse measurement sensor module includes a light-emitting diode emitting a specific wavelength for receiving reflected light and converting it into an electrical signal A photoelectric converter, an amplifier composed of a low-pass filter and an operational amplifier for amplifying the reflected light electrical signal, and a voltage dividing resistor for dividing the voltage of the amplified electrical signal to facilitate collection by the processing module (1).
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 1, characterized in that: the input module (3) and the display module (7) are combined into a touch screen module.
The intelligent cardiac arrest pulse detection, alarm and first aid guidance system according to claim 1, characterized in that: the rescue information includes pictures or videos indicating the compression location, compression depth, and compression frequency.