Title:
METHOD, APPARATUS, PROCESSING DEVICE AND SYSTEM FOR EXTRACTING RESPIRATORY SIGNAL
Document Type and Number:
WIPO Patent Application WO/2020/024311
Kind Code:
A1
Abstract:
A method, apparatus, processing device and system for extracting a respiratory signal. The method comprises: acquiring a waveform of a heart beat monitoring signal (S101); and according to the waveform of the heart beat monitoring signal, acquiring a time interval between two different feature events in the same cardiac cycle, and acquiring a respiratory waveform according to a change in the time interval between the two different feature events over time (S102). By means of the method, impacts on a respiratory signal and even distortion thereof caused by a weak respiratory signal or outside low frequency disturbance in some scenarios can be prevented, the respiratory signal can be acquired more accurately, in addition, an expiration or inspiration process can be directly determined by means of rise or fall of a respiratory waveform acquired by the method, and the respiratory signal can be more conveniently combined with parameters related to the heart to carry out clinical analysis and calculation so as to meet more clinical requirements.
Inventors:
YE FEI (CN)
Application Number:
PCT/CN2018/099248
Publication Date:
February 06, 2020
Filing Date:
August 07, 2018
Export Citation:
Assignee:
SHENZHEN DARMA TECH CO LTD (CN)
International Classes:
A61B5/0205; A61B5/08
Foreign References:
| CN104107040A | 2014-10-22 | |||
| CN103596492A | 2014-02-19 | |||
| CN108056769A | 2018-05-22 | |||
| CN105147293A | 2015-12-16 | |||
| CN105286868A | 2016-02-03 | |||
| US5913308A | 1999-06-22 |
Attorney, Agent or Firm:
CHINA RANKTOP IP OFFICE (CN)
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