In recent years, with the prevalence of upper respiratory tract viruses and cardiovascular diseases, issues related to cardiopulmonary health have been increasingly emphasized. Although traditional wearable electrocardiographic sensors and chest strap respiratory sensors can measure cardiopulmonary signals, prolonged wearing of patch electrodes and straps may cause discomfort such as skin allergies and chest pressure. 

The team led by Prof. Ting-Wei Wang of National Tsing Hua University has developed a wearable pocket-sized completely contactless cardiopulmonary sensor. It utilizes electromagnetic induction technology to measure the vortex damping signals generated by heart contraction and relaxation and changes in lung volume to extract heart and respiratory signals. Subsequently, it calculates important cardiopulmonary indicators such as heart rate, blood pressure, respiratory rate, lung capacity, and cardiopulmonary coordination index. 

A new breakthrough in cardiopulmonary monitoring! Contactless technology, comfortable and convenient, accurate and reliable 

The sensor only needs to be placed in the front pocket of the subject to achieve real-time cardiopulmonary signal measurement. Compared to sensors currently available on the market, it has the following advantages: 

• Contactless sensing, comfortable and convenient: No need for patch electrodes or strap fixation, it can be placed in the front pocket for measurement, solving the discomfort and limitations of traditional wearable electrocardiographic sensors and chest strap respiratory sensors during prolonged wearing. 
• Single sensor for simultaneous cardiopulmonary measurement: It can simultaneously measure heart and respiratory signals, providing cardiopulmonary coordination indicators and achieving comprehensive cardiopulmonary monitoring. 
• Adjustable sensing depth: The sensing depth can be adjusted for different users to optimize signal-to-noise ratio and measurement accuracy, providing personalized cardiopulmonary monitoring solutions. 
• Internet of Things and smart healthcare applications: It can be combined with Internet of Things and artificial intelligence technology for long-term monitoring of cardiopulmonary data, assisting in disease diagnosis and treatment, and promoting the development of smart healthcare. 

Prof. Ting-Wei Wang stated that this technology is expected to be widely used in various fields such as consumer electronics, sports and health, and medical care. Consumers can monitor their cardiopulmonary conditions and adjust their lifestyles at any time. Sports enthusiasts can optimize training effects based on cardiopulmonary coordination indicators. More importantly, medical institutions can discover the risk of cardiopulmonary diseases through long-term monitoring, formulate treatment plans to improve patient prognosis and quality of life. In the future, the team will continue to develop and promote the commercialization of the technology, hoping to bring a more comfortable and accurate cardiopulmonary monitoring experience to the public. 

Resource (Mandarin): 

顛覆傳統心肺監測！口袋型電磁感測器實現非接觸式心肺量測