Respiratory monitoring system
The respiratory monitoring system uses a laryngeal movement detection sensor and pyroelectric sensor to analyze airflow temperature changes, enabling accurate evaluation of swallowing and breathing coordination without interference, addressing the limitations of existing systems.
JP7887170B2Active Publication Date: 2026-07-09IWATE UNIVERSITY
Patent Information
- Application Number
- JP2022174361
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-10-31
- Publication Date
- 2026-07-09
- Estimated Expiration
- 2042-10-31
Smart Images
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Abstract
To provide a respiration monitoring system capable of evaluating a coordination pattern of swallowing and respiration without disturbing a meal.SOLUTION: A respiration monitoring system is characterized by: specifying a larynx closing start timing and a larynx closing end timing by a larynx movement detection sensor 1; detecting a temperature change of a respiratory air flow from the nostril by a pyroelectric sensor 2 to acquire an output waveform in which one projecting peak point appears in an exhalation period, and the other projecting peak point appears in an inhalation period; detecting from the output waveform, a projecting peak point before swallowing, appearing at first before the larynx closing start timing, and a projecting peak point after swallowing, appearing at first after the larynx closing end timing; determining that the period before the start of larynx closing is the exhalation period, when the projecting peak point before swallowing is one projecting peak point; determining that the period before the start of larynx closing is the inhalation period, when the projecting peak point before swallowing is the other projecting peak point; determining that the period after the end of larynx closing is the exhalation period, when the projecting peak point after swallowing is one projecting peak point; and determining that the period after the end of larynx closing is the inhalation period, when the projecting peak point after swallowing is the other projecting peak point.SELECTED DRAWING: Figure 1
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Citation Information
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