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DISPOSITIF D'ANALYSE DE L'ÉTAT PHYSIOLOGIQUE ET PROGRAMME INFORMATIQUE
专利权人:
LTD.;DELTA TOOLING CO.
发明人:
FUJITA, ETSUNORI
申请号:
EP13804103
公开号:
EP2862507A4
申请日:
2013.05.30
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
A novel technique for analyzing a biological state is provided. A body trunk biological signal (aortic pulse wave) extracted from the back of a body trunk is differentiated twice. By using a resultant second derivative waveform, a waveform component of a maximum amplitude of a low frequency appearing as a result of switch of an amplitude from attenuation to amplification in transition from a contracting phase to a diastolic phase of a ventricle is specified in each period of the second derivative waveform. Inflection points are specified that appear before and after the maximum amplitude waveform component. A biological state is analyzed using information about each of the inflection points. The two inflection points obtained from a reference form of the second derivative waveform of the aortic pulse wave substantially agree in time phase with first heart sound and second heart sound (or an R wave and a T wave in an electrocardiogram) indicating the dynamic state of a cardiovascular system. This enables analysis of a biological state.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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