New smart health sensor for more professional and portable health management

Health is a topic related to everyone’s life, and we often talk about these in our lives. In many cases, the disease is often discovered when the hospital is diagnosed, and the treatment is relatively difficult at that time.

Health is a topic related to everyone’s life, and we often talk about these in our lives. In many cases, the disease is often discovered when the hospital is diagnosed, and the treatment is relatively difficult at that time. If we can predict the onset of disease in advance, we may be able to prevent it from happening earlier. To prevent diseases, we need to take care of our own health. In addition to our usual living habits, we also need to conduct regular disease inspections. However, the diagnosis of some diseases can only be found on the equipment in the hospital, such as cardiovascular disease, many people do not have much time, energy and financial resources to support regular regular inspections. In the busy modern society, many people tend to ignore some changes in their bodies and can only rely on a few physical examinations to prevent diseases. For everyone, the necessity of periodic health management is self-evident.

Cardiovascular disease health management

Cardiovascular disease is a general term for cardiovascular diseases, which generally refers to ischemic or hemorrhagic diseases of the heart and systemic tissues caused by hyperlipidemia, blood viscosity, atherosclerosis, and hypertension. For the prevention of cardiovascular disease, hospitals usually focus on routine examinations such as heart rate, blood pressure, and electrocardiogram, which can early detect whether there are abnormal phenomena in the body, adjust their living and eating habits, and treat them when necessary. Even such a basic inspection can only be realized on the professional equipment of the hospital. At the same time, the time interval between short-term inspections is long, and there will be missed and misdiagnosed cases. If we can monitor these data of the body for a long time in daily life, form a dynamic database, and ensure the traceability of the data, we can better prevent the occurrence of diseases and minimize the incidence of diseases.

In recent years, with the rapid development of technology, a large number of wearable devices have emerged, such as bracelets, smart watches, smart shoes, etc. Some wearable devices can be worn directly on the body in daily activities, monitoring heart rate, blood oxygen, blood pressure and other data at all times, and can sense, record, analyze, manage health data and disease prevention with the support of related software. Currently, a common problem with these devices is that their data measurement accuracy is not high. Often under the interference of unfavorable factors such as the shaking of the body itself and the surrounding environment, the signal acquisition and recognition of the sensor is affected, resulting in inaccurate measurement data, which is too different from the professional equipment in the hospital, which makes health management impossible. As mentioned above, users are not very motivated to use wearable health devices for health management. We need a high-precision health detection sensor to change this situation.

AS7026 Cardiovascular Health Monitoring Sensor Will Bring Good News

The AS7026, an optical sensor for continuous monitoring of cardiovascular health, launched by ams AG, can be embedded in consumer devices such as health monitoring wristbands or smart watches to continuously monitor heart rate and heart rate variability. , blood pressure and electrocardiogram (ECG) measurements.

New smart health sensor for more professional and portable health management

The AS7026 combines advanced optical semiconductor technology with sophisticated algorithms to enable unprecedented levels of measurement accuracy in wearable devices. The blood pressure measurement algorithm used by the AS7026 has been tested to be medical grade (Class B) for accuracy according to the IEEE 1708-2014 industry standard. The sensor’s high-accuracy cardiovascular measurement capabilities create new potential for consumer and lifestyle devices such as smartwatches to provide valuable health monitoring data around the clock, which often requires the use of dedicated medical equipment and only It can only be obtained in a hospital or doctor’s operating room.

The AS7026 is a 6.2mm x 2.8mm x 1.0mm monolithic optical module with ultra-low power consumption for 24/7 life-saving smart health monitoring from battery powered devices. The small sensor opens up a wide range of innovative applications for health monitoring technology, from in-ear devices like headphones and hearing aids to toilet seats.

The AS7026 utilizes photoplethysmography (PPG) technology for human exercise heart rate monitoring and electrocardiogram (ECG) implementation. PPG is the most commonly used HRM method. It measures pulse rate by sampling light modulated by blood vessels. Changes in blood flow through blood vessels when the heart contracts and expands will cause blood vessels to expand and contract to modulate light. By measuring The modulated light can calculate the heart rate.. An electrocardiogram is a graph of changes in potential references in various forms of biopotentials produced by the heart.

The AS7026 utilizes high-performance optical stacking components to achieve high sensitivity, low noise, and high ambient light immunity, and the small batteries included in wearable and mobile devices enable significantly lower power consumption. The sensor converts PPG and ECG readings into digital high-precision optical heart rate measurements (HRM), heart rate variability (HRV) measurements and continuous blood pressure values ​​through a special algorithm developed by ams. Cuffless blood pressure measurement has been optimized to fully comply with IEEE Std 1708-2014 standard.

The AS7026 is a single-chip integrated solution sensor consisting of a linear regulator, photoelectric sensor, low noise optical analog front end (AFE), programmable sequencer, HP filter, sequencer, and LEDs. These include 5 photosensors (4 for PPG, 1 for Prox), 3 LEDs (2 green, 1 IR). In addition to measuring HRM/HRV and blood pressure, the sensor can also connect other external sensors through the interface to achieve skin temperature and skin resistivity measurement. In addition, the AS7026’s new optical stacking element enables excellent signal quality for every skin tone in the von Luschan skin tone distribution map.

AS7026 Evaluation Kit Eval Kit

The AS7026 Evaluation Kit Eval Kit can be used to evaluate all the functions of the AS7026G Vital Signs sensor and test it in various applications. The evaluation kit connects to a PC via USB and features a graphical GUI that allows the user to change AS7026 register settings and view measurement results through the graphical software. An SDK (Software Development Kit) is provided with the evaluation kit, the SDK currently contains algorithms for HRM, HRV and BP, and the compiled firmware can run on an STM32 ARM Cortex-M4 low-power MCU.

For full flexibility, biosensors (AS7026), temperature sensors (AS6200), accelerometers (LIS2DH12) and electrodes are located on the PCB for any application and are connected to the main board via FPC cables, with the option to connect different electrode. With the board disconnected, additional boards can also be connected with FPC cables or wrist straps with PicoBlade connectors, and any signals important to development can be easily extended and probed on the pin interface.

Smart Health Mobile Accessories VivaVita

VivaVita is a productized mobile accessory solution that fully demonstrates the functions and blood pressure algorithm of AS7026, and has obtained FDA certification.

The VivaVita is only 5cm x 5cm in size, uses built-in electrodes and an optical interface on the top of the device to measure health parameters, and can be connected to a mobile phone via Bluetooth for wireless charging.

VivaVita can measure multiple vital signs, including HRM, Vegal Tone, SDNN, where blood pressure reaches class B, compliant with IEEE Std 1708-2014 (accuracy 5-6 mmHg), and provides blood pressure measurement even without calibration. Its built-in algorithms can convert the captured data into accurate heart rate, PPG, ECG, blood pressure and nerve tone information. Additionally, on the IOS and Android mobile apps, connecting to the VivaVita via Bluetooth, can Display a variety of personal health parameters: pulse bpm, medical grade blood pressure, Vegal Tone (as a conservative risk indicator) and SDNN (overall heart rhythm).

The low-power design and small footprint of the AS7026 are ideal for product applications such as wristbands, smart watches, sports watches, and smart patches where board space is limited. Through these devices, users can monitor their normal blood pressure and other key indicators of heart health at all times, just as they are familiar with physical indicators such as height and weight. Using this data, more active and informed choices about personal health management and lifestyle can be made, making it possible to prevent the occurrence of cardiovascular disease.

The Links:   SP14N002 6MBP20JB060-03