專業(yè)的心臟速率監(jiān)視器IC克服心電噪聲和功率的挑戰(zhàn)

　　個(gè)人和遠(yuǎn)程醫(yī)療監(jiān)控的可穿戴式心電圖（ECG）設(shè)備的需求正在增加，并與它的準(zhǔn)確性，可靠性和更長的電池壽命的要求。這挑戰(zhàn)設(shè)計(jì)師心電圖讀數(shù)是高度敏感的運(yùn)動(dòng)和其他干擾源，和ECG信號(hào)的處理消耗了可用的電池電量。

　　提高可靠性和用戶體驗(yàn)，可穿戴設(shè)備的設(shè)計(jì)者需要一個(gè)解決方案，可以提取，放大，濾波小生物信號(hào)，而功耗最小。為此，新的ECG心率監(jiān)視器集成電路可以發(fā)揮核心作用，創(chuàng)造下一代心臟監(jiān)測。

　　Taking the pulse of ECG requirements in wearables

　　An ECG measures heart rhythm and helps to diagnose cardiac issues in patients， including heart attack， poor blood flow to the heart， and other abnormal heart conditions.

　　The ECG records the electrical activity generated by heart muscle tissue. This activity produces a voltage， or “biopotential，” that spreads to the skin. Though the biopotential is in the microvolt range， it can be measured reliably in a noninvasive fashion using ECG electrodes attached to the skin.

　　Professional ECG systems can use up to 10 electrodes connected to the chest and limbs. Wearable ECG systems， such as chest straps and smart shirts， employ fewer electrodes and often use two or three electrode configurations. This approach reduces the footprint of ECG systems to increase the comfort level for patients， but comfort must be balanced with accuracy and reliability.