Systems and methods for respiration measurement
First Claim
Patent Images
1. A portable data acquisition unit, comprising:
- a pressure sensor that is configured to measure pressure signals at a high-frequency rate, the signals pertaining to patient breathing;
a microcontroller that receives pressure signals measured by the pressure sensor and determines clocks times associated with the pressure signals; and
an interface that is configured to output sleep session data from the data acquisition unit to another device.
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Abstract
In one embodiment, a portable data acquisition unit includes a pressure sensor that is configured to measure pressure signals at a high-frequency rate, the signals pertaining to patient breathing, a microcontroller that receives pressure signals measured by the pressure sensor and determines clocks times associated with the pressure signals, and an interface that is configured to output sleep session data from the data acquisition unit to another device.
102 Citations
47 Claims
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1. A portable data acquisition unit, comprising:
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a pressure sensor that is configured to measure pressure signals at a high-frequency rate, the signals pertaining to patient breathing;
a microcontroller that receives pressure signals measured by the pressure sensor and determines clocks times associated with the pressure signals; and
an interface that is configured to output sleep session data from the data acquisition unit to another device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A portable data acquisition unit configured to collect patient information during a sleep session, the unit comprising:
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a housing that is configured to be attached to a patient or clothing of the patient;
a solid-state pressure sensor that is configured to measure pressure signals collected by a patient interface positioned adjacent nostrils of the patient;
an amplifier that amplifies the pressure signals measured by the pressure sensor;
an analog-to-digital converter that converts the amplified pressure signals into digital signals;
a microprocessor that receives the digital signals from the analog-to-digital converter and determines clocks times associated with the digital signals;
a battery that powers the data acquisition unit; and
an interface that is configured to transfer pressure and time data from the data acquisition unit to another device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A data acquisition program stored on a computer-readable medium, the program comprising:
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logic configured to receive measured pressure signals collected at a high-frequency rate and store the signals as pressure data;
logic configured to determine times at which the measured pressure signals were measured and store the times as time data;
logic configured to transmit the pressure and time data to a computer. - View Dependent Claims (22, 23, 24, 25)
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26. A method of collecting sleep session data for the purpose of identifying sleep disordered breathing of a patient, the method comprising:
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providing a portable data acquisition unit to the patient, the data acquisition unit being configured to collect pressure data at a high-frequency rate;
measuring pressure signals that pertain to patient breathing with the data acquisition unit at a high-frequency rate as the patient sleeps and recording a time at which each pressure signal is collected;
downloading pressure data and time data from the data acquisition unit to a computer; and
manipulating the downloaded data with the computer. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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34. A data analysis program stored on a computer-readable medium, the program comprising:
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logic configured to receive pressure and time data collected by a portable data acquisition unit during a patient sleep session;
logic configured to analyze the pressure and time data to determine sleep disordered breathing events; and
logic configured to generate a graph that plots pressure versus time, the graph including markers that identify the determined sleep disordered breathing events. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. A user interface for presenting sleep session data to a user, the interface comprising:
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a patient information screen with which information concerning a patient whose breathing was monitored during a sleep session using a portable data acquisition unit can be collected;
a select a data file screen with which a pre-existing file containing raw data collected during the sleep session can be selected for the purpose of creating a sleep session file that includes the raw data and the patient information; and
a sleep disordered breathing screen generated using the created sleep session file, the sleep disordered breathing screen displaying a plot of pressure data versus time data in a graph, the sleep disordered breathing screen further displaying markers in the graph that identify automatically-determined sleep disordered breathing events to the user. - View Dependent Claims (42, 43, 44, 45, 46, 47)
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Specification