Invention Grant
- Patent Title: Apparatus for determining respiratory condition
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Application No.: US13901135Application Date: 2013-05-23
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Publication No.: US09848831B2Publication Date: 2017-12-26
- Inventor: Yukio Nonaka , Shiroh Isono , Tsuyoshi Shimizu
- Applicant: NIHON KOHDEN CORPORATION , National University Corporation Chiba University
- Applicant Address: JP Tokyo JP Chiba
- Assignee: NIHON KOHDEN CORPORATION,NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
- Current Assignee: NIHON KOHDEN CORPORATION,NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
- Current Assignee Address: JP Tokyo JP Chiba
- Agency: Kenealy Vaidya LLP
- Priority: JP2012-123248 20120530
- Main IPC: A61B5/087
- IPC: A61B5/087 ; A61B5/00 ; A61B5/08 ; A61M16/00 ; A61M16/06
Abstract:
An apparatus for determining a respiratory condition, the apparatus includes: a signal acquirer which is configured to acquire a signal waveform corresponding to a respiratory flow of a subject; a differential calculator which is configured to acquire a differential waveform which is obtained by performing differentiation of the signal waveform; and a first determiner which is configured to determine that inspiratory flow limitation occurs in the subject, when the differential waveform satisfies a predetermined condition in a portion of the signal waveform, which corresponds to inspiration of the subject.
Public/Granted literature
- US20130324877A1 APPARATUS FOR DETERMINING RESPIRATORY CONDITION Public/Granted day:2013-12-05
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