Techniques for extracting breathing parameters from noisy short-duration thoracic impedance measurements

• Main Authors: JAYARAMAN, RAVIPRAKASH, BHATT NARENDRA SINGH, REYNOLDS AARON, SUH JUNGWON, ACKLER, THOMAS, J, GANESAN SRIRAM, GOPINATHAN, VENUGOPAL, PAN GUOLIN
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

One example is a method of extracting a respiratory parameter from a short duration thoracic impedance ("TI") signal, the method comprising pre-processing a TI measurement signal to obtain a respiratory signal therefrom; evaluating the respiratory signal for at least one of signal quality and signal integrity; at least one of an autocorrelation algorithm and a time-domain zero-crossing algorithm is applied to the respiratory signal to extract at least one respiratory parameter therefrom, the at least one respiratory parameter including at least one of a respiratory rate ("RR") and a tidal volume ("TV"). 一个示例是从短持续时间胸阻抗("TI")信号中提取呼吸参数的方法，该方法包括对TI测量信号进行预处理以从中获得呼吸信号；针对信号质量和信号完整性中的至少一个来评估呼吸信号；对所述呼吸信号实施自相关算法和时域过零算法中的至少一个，以从中提取至少一个呼吸参数，所述至少一个呼吸参数包括呼吸速率("RR")和潮气量("TV")中的至少一个。