Invention Grant
- Patent Title: Apnea and hypopnea detection
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Application No.: US14020729Application Date: 2013-09-06
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Publication No.: US09668692B2Publication Date: 2017-06-06
- Inventor: Leonardo Alberto Baloa Welzien , Enrico Bambrilla , Samir S. Ahmad
- Applicant: Breathe Technologies, Inc.
- Applicant Address: US CA Irvine
- Assignee: Breathe Technologies, Inc.
- Current Assignee: Breathe Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Agency: Stetina Brunda Garred and Brucker
- Agent Mark B. Garred
- Main IPC: A61B5/087
- IPC: A61B5/087 ; A61M16/06 ; A61B5/00 ; A61M16/00

Abstract:
The identification of obstructed breathing, including an apnea condition and a hypopnea condition, is disclosed. A signal representative of a flow rate of therapeutic gas being delivered to the patient is received. A peak flow value and a minimum flow value over a predetermined time window encompassing a plurality of respiration cycles is derived. A polynomial difference equation from the peak flow values and the minimum flow values is generated, and a respiration index from a minimum of the polynomial difference equation is derived. The apnea and/or hypopnea condition is indicated based upon a comparison of the respiration index to a predefined obstruction threshold over a predefined obstruction time period.
Public/Granted literature
- US20150073291A1 APNEA AND HYPOPNEA DETECTION Public/Granted day:2015-03-12
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