Invention Grant
- Patent Title: Systems and methods for determining respiration information from a physiological signal using amplitude demodulation
- Patent Title (中): 使用幅度解调从生理信号确定呼吸信息的系统和方法
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Application No.: US13759943Application Date: 2013-02-05
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Publication No.: US09560978B2Publication Date: 2017-02-07
- Inventor: Braddon M. Van Slyke , Ronald Kadlec , Scott McGonigle
- Applicant: Covidien LP
- Applicant Address: US MA Mansfield
- Assignee: Covidien LP
- Current Assignee: Covidien LP
- Current Assignee Address: US MA Mansfield
- Agency: Shvarts & Leiz LLP
- Main IPC: A61B5/02
- IPC: A61B5/02 ; A61B5/024 ; A61B5/0205 ; A61B5/00 ; A61B5/08 ; A61B5/1455
Abstract:
A patient monitoring system may receive a physiological signal such as a photoplethysmograph (PPG) signal. The PPG signal may include a pulsatile component that functions as a carrier signal and an amplitude modulation component that represents respiration information. The patient monitoring system may move the amplitude modulation component to a baseline component of the PPG signal. Respiration information may be calculated based on the amplitude modulation component.
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