In 2009, EI Company was established and the EIT (Bioelectrical Impedance Tomography) project was launched
In 2011, EI Company obtained a medical device production license
In 2012, the EIT-B100 product obtained the Medical Device Product Registration Certificate issued by the National Medical Products Administration
In 2016, EIT-B200 obtained the Medical Device Product Registration Certificate
In 2017, EIT-B300 was approved for development, and EIT-B100 and EIT-B200 were recognized by the Ministry of Science and Technology as "international original" products
The research and development of EIT-B300 product was completed and registration was applied for in 2018
EIT-B300 obtained the Medical Device Product Registration Certificate in 2020; Intelligent wearable device - hassle free cerebrovascular warning headband project development

Research and development, production, sales, and service of stroke related medical devices and impedance smart wearable devices.

1. Brain impedance dynamic imaging system; Provide real-time brain image monitoring to help clinical doctors take more timely, accurate, and targeted treatment measures for stroke patients. 2. No annoying brain vascular warning headband; Provide daily monitoring and disease warning for patients with cerebrovascular disease and high-risk populations.

22 utility model patents (...). 6 software copyrights (...). 6 invention patents (under application).

National High tech Enterprise The Ministry of Science and Technology has recognized international original innovative medical devices Jiangsu Province Quality and Integrity AAA Enterprise“ Top 10 Leading Brands in China's Smart Health Technology in 2020“

Stroke patients and high-risk groups for stroke.

Three high population, people with high mental pressure in life and work, heart disease patients, diabetes patients, alcoholics, long-term smokers, people who overeat salt, etc.

Real time detection of the user's brain impedance, analyzing the impedance values and waveform indicators to determine the user's cerebrovascular health status; Analyze and establish a cerebrovascular status model from the aspects of vascular condition, regulatory ability, and degree of sclerosis, providing users with health status monitoring and stroke risk warning services.

During rapid testing, various brain health indices are checked for three minutes and a comprehensive score is given. When the score is below the health value, a red warning screen is displayed and compared with the previous test results. Through stroke self-examination, users are reminded to pay attention to their physical condition and seek medical attention if necessary; During deep monitoring, real-time monitoring of brain impedance is used to provide timely feedback on the current brain impedance value of the user. When there are abnormal fluctuations in the value, a pop-up warning is issued to inform the user, and emergency contacts can be selected for notification.

This headband is based on EIT (electrical impedance computed tomography) technology and impedance encephalography technology. Different tissues in the human body have different electrical conductivities. Experiments have shown that the electrical conductivity of various tissues in the human body varies with changes in health status, therefore some physiological and pathological changes can cause changes in electrical conductivity. This headband injects safe current into the human body through eight electrodes, measures the corresponding surface potential information, analyzes the distribution or changes of internal resistivity in the human body, and determines the user's brain health status by analyzing the brain impedance value and brain blood flow waveform.

Bioelectrical impedance detection technology is based on the basic principle that the human body is a large bioelectric conductor, and each tissue has a certain impedance. When a local tissue in the human body undergoes a lesion, the impedance of that part is inevitably different from other parts. Therefore, impedance detection can be used to diagnose tissue lesions in the human body. By injecting known voltage into specific parts of the human body to measure the current caused on the body surface, or injecting known current to measure the voltage caused on the body surface, using the measured current or voltage values, according to a certain reconstruction algorithm, the impedance of various tissues inside the human body under the action of an electric field is calculated. The product applied to brain impedance detection is used to determine the cerebrovascular health status of the human body by analyzing the impedance changes caused by changes in brain tissue and the symmetry coefficient of left and right brain impedance.

Brain impedance blood flow imaging technology is based on the principle that various body fluids have different conductivities and blood has the best conductivity. A weak low-frequency current is applied between two parts of the head. According to Ohm's law and the principle of volumetric conductivity, the current or voltage changes between the two detection electrodes can be observed to understand the instantaneous changes in blood fluid dynamics within the electric field range of the detection site. Every beat of the heart causes a change in the volume of blood vessels in the brain, leading to a regular change in electrical impedance. A time-dependent function curve waveform is plotted for this change, which is closely related to cardiac activity (inflow) and vascular elasticity. It is influenced by peripheral resistance (diameter of small and medium-sized arteries and arterioles) and blood viscosity (fluid properties), and can reflect changes in vascular tension and elasticity. Different people have different waveforms and waveform indicators due to their varying cerebrovascular health status. By comparing with normal waveforms and waveform indicators, the user's cerebrovascular health status can be determined.

EI Company has established a long-term and close cooperative relationship with Professor Dong Xiuzhen's team at the Chinese People's Liberation Army Air Force Medical University, and shared research results. Professor Dong Xiuzhen's team has been deeply involved in the research of brain impedance technology for more than 20 years. They have won the second prize of National Science and Technology Progress Award and received support from multiple key projects supported by the National Natural Science Foundation and the Ministry of Science and Technology. The company has hired Professor Dong Xiuzhen as its Chief Scientist. Provide strong support for the iterative updates of our products. The EI R&D center provides advanced cutting-edge technology for the development of our products.

Traditional medical imaging: X-ray, CT, MRI, and near-infrared spectroscopy are generally used. Currently, X-ray, CT, and MRI technologies can only be used for medical equipment and cannot be wearable. Moreover, the detection is not non-invasive to the human body and cannot be monitored in real time; Near infrared spectroscopy has poor accuracy due to limited illumination depth. Brain vascular warning headband: using bioelectrical impedance technology, it can continuously and dynamically monitor brain information in real time, 1. Non invasive and non-invasive detection of the human body. 2. Real time reflection of changes in electrical resistivity within the human body, which in turn reflects physiological, pathological activities, and health status. 3. The device is simple, easy to use, and the portable device is easy to operate, which is more conducive to daily household use.

Unified specifications and sizes, available in three colors: Moonlight White, Crystal Purple, and Swallow Feather Grey. Designed according to the contours of the Asian brain, it is adjustable and adaptable to all user head shapes.

Detachable strap: Fixed headband to prevent electrode from not fitting tightly. Mastoid electrode: Monitor in contact with the skin. Indicator lights: battery level indicator and operating status indicator. Button: Power on/off button. Forehead electrode: Monitor in contact with the skin. Charging port: Connect the charging cable for charging. Axis structure: Rotate and adjust to ensure a tight fit between the mastoid electrode and the skin. Stretching structure: Front to back stretching achieves adaptive head circumference.

Scan the QR code inside the packaging box to download the free brain app, open the app and enter your phone number to obtain the SMS verification code, and complete the registration.

Scan the QR code inside the packaging box to achieve one click binding or complete the binding by entering the device serial number and verification code.

Adjust the extension structure of the headband to fit the circumference of the head. Hold both sides of the headband with both hands and gently stretch it to complete the wearing. Tighten the headband after wearing to prevent it from loosening and slipping, and ensure that the forehead electrode is in contact with the skin. Adjust the pivot structure to ensure that the mastoid electrode is in contact with the skin, ensuring that the electrode contact area is clean and free of broken hair obstruction. When gently shaking the head, if the headband is not loose or abnormal, it indicates that the wearing is complete.

Click the power button on the headband to open the brain free app (keep the phone's Bluetooth on), and click "Connect headband" inside the app to complete the connection.

The comprehensive health score includes: vascular age determination, vascular elasticity index, blood flow regulation index, brain health and safety index, heart rate analysis, and rehabilitation recommendations.

Age determination of cerebral blood vessels (reflecting the degree of aging of cerebral blood vessels) Under normal circumstances, the difference between the age of human blood vessels and actual age should not exceed 5 years. If the difference is greater than 5 years old, it indicates that the cerebral blood vessels are in a sub healthy state and need to be taken care of in daily life. If the difference is greater than 10 years old, it means that the aging of cerebral blood vessels is very serious, and there is a risk of rupture or blockage in the future. It is recommended to go to the hospital for relevant examinations in a timely manner

Vascular elasticity index (reflecting the degree of cerebral vascular sclerosis) Blood vessels are like water pipes. Over time, various impurities will remain inside the pipes, slowing down the flow rate of water. As the human body ages and various unhealthy lifestyle habits occur, impurities and dirt in the blood increase. If the body cannot excrete them in time, they will adhere and accumulate on blood vessels. Over time, the blood vessel wall thickens and hardens, losing elasticity and flexibility, leading to narrowing of the lumen and poor blood flow. In severe cases, it can cause arteriosclerosis. If blood vessels are blocked, it can cause various cerebrovascular diseases, such as cerebral thrombosis, cerebral embolism and other ischemic stroke diseases.

Blood flow regulation index (reflecting the brain's self-protection ability) The cerebral blood vessels have automatic regulation function, which can ensure stable and continuous blood supply to the brain. When blood pressure suddenly rises in the human body, a large amount of blood will rush into the cerebral blood vessels. At this time, the blood vessels will automatically narrow their diameter, increase resistance, slow down blood flow, and avoid brain injury. When the blood pressure in the human body suddenly drops and there is insufficient blood and oxygen supply to the brain, the blood vessels will automatically dilate, allowing more blood to flow into the brain. Poor blood flow regulation ability leads to poor adaptability of the brain to sudden changes in blood pressure, which can easily cause brain diseases such as cerebral hemorrhage, cerebral ischemia, migraine, etc.

Blood flow fluctuation index (representing whether there is a risk of pathological damage to your brain) Under normal circumstances, various indicators of cerebral blood vessels should be continuous and stable over a period of time, without significant fluctuations. If the value of a certain indicator suddenly increases, decreases, or even disappears in a short period of time, it is likely that cerebrovascular disease is about to occur or is currently occurring, and the condition is showing a worsening trend. The higher the blood flow fluctuation index, the healthier your brain is.

The number of heartbeats per minute when the human body is quiet.

Three minutes.

Quick detection can detect up to 75 times;

Wear the free brain vascular warning headband - turn on the headband - open the free brain APP (keep the phone Bluetooth on) - click "Connect headband" to complete the connection - click the quick detection button.

Keep quiet and do not walk around casually. Ensure that the electrodes are tightly adhered to the skin.

Real time viewing of left and right brain impedance data and impedance changes. If there is an abnormal impedance, a warning prompt will appear

Real time monitoring of brain lesion risk, can be worn for a long time.

24 hours.

Wear the free brain vascular warning headband - turn on the headband - open the free brain APP (keep the phone Bluetooth on) - click "Connect headband" to complete the connection - click the depth monitoring button.

Avoid vigorous exercise.

There is an after-sales phone number on the user app and product packaging. If you have any questions, please contact the customer service center.