# US 2019/0167187 A1 · Detection appliance and method for observing sleep-related breathing disorders

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- Number: US 2019/0167187 A1
- Document ID: US20190167187A1
- Status: Published application
- Kind: A1
- Application number: 16/190,675
- Filed: 2018-11-14
- Published: 2019-06-06
- Earliest claimed: 2003-09-03
- Assignees: ResMed R&D Germany GmbH
- Applicants: Resmed R&D Germany GmbH
- Inventors: Stefan MADAUS; Caspar Graf von STAUFFENBERG; Harald VOGELE; Dieter Heidmann; Dieter KLAUS
- Web page: https://patentgrep.com/patent/US20190167187A1

## CPC

- A61B 5/4818: {Sleep apnoea}
- A61B 5/087: Measuring breath flow
- A61B 5/113: occurring during breathing
- A61B 5/1135: {by monitoring thoracic expansion}
- A61B 5/6825: {Hand}
- A61B 5/6831: {Straps, bands or harnesses}
- A61B 5/7232: {involving compression of the physiological signal, e.g. to extend the signal recording period}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A detection appliance and a method detect and evaluate a measuring signal that is indicative of breathing of a sleeping person, in connection with the observation of sleep-related breathing disorders. Instruments also detect signals that are indicative of breathing of a patient. The aim provides solutions that enable a reliable examination in terms of occurrence of sleep-related sleeping disorders, in the usual surroundings of the person concerned. In a first form, a mobile detection appliance is provided with a sensor device for detecting a nasal flow signal indicative of a nasal respiratory gas flow, and/or a respiratory flow signal indicative of an oral respiratory gas flow, in addition to an electronic data processing unit comprising a memory device and processing the signals indicative of temporal course of the nasal and oral respiration. The data processing device is configured to store data indicative of temporal course of the respiratory flow signals.

## Claims

### Claim 1

A mobile device comprising:
a sensor device configured to acquire a respiratory flow signal indicative of a respiratory gas flow;
an electronic data processing device configured to process the respiratory flow signal, and
a memory device;
wherein the electronic data processing device is configured to initiate a process for storing of data indicative of a temporal course of the respiratory flow signal to the memory device; and
wherein the mobile device further comprises an interface device configured to transmit the stored data to an external analysis system.

### Claim 2 (depends on 1)

A mobile device according to claim 1, wherein the interface device is configured to transmit the stored data wirelessly to the external analysis system.

### Claim 3 (depends on 2)

A mobile device according to claim 2 wherein the interface device is an infrared interface.

### Claim 4 (depends on 1)

A mobile device according to claim 1, wherein the sensor device configured to acquire the respiratory flow signal indicative of the respiratory gas flow is connected to a mask device.

### Claim 5 (depends on 1)

A mobile device according to claim 1, further comprising a power supply which is formed by a battery device.

### Claim 6 (depends on 1)

A mobile device according to claim 1, wherein the electronic data processing device is configured to:
terminate the initiated process for storing of data by evaluation of a time criterion; and/or
terminate the initiated process for storing of data when the respiratory flow signal fulfils a shutdown criterion within a shutdown time window.

### Claim 7 (depends on 1)

A mobile device according to claim 1, wherein the external analysis system is configured to generate evaluation features from the respiratory flow signal indicative of the respiratory gas flow and to generate at least one evaluation result by subjecting the evaluation features to an associative analysis.

### Claim 8 (depends on 7)

A mobile device according to claim 7, wherein the evaluation features are generated based on correlation criteria.

### Claim 9 (depends on 8)

A mobile device according to claim 8, wherein the correlation criteria are applied to a first derivative and/or a second derivative of the temporal course of the respiratory flow signal.

### Claim 10 (depends on 7)

A mobile device according to claim 7, wherein flow-limited breathing is recognised based on the associative analysis of the evaluation features.

### Claim 11 (depends on 7)

A mobile device according to claim 7, wherein at least one part of the evaluation features is generated under consideration of a first derivative and/or a second derivative of the temporal course of the respiratory flow signal.

### Claim 12 (depends on 1)

A mobile device according to claim 1, wherein the mobile device is configured such that the stored data is visualisable by a user terminal.

### Claim 13 (depends on 7)

A mobile device according to claim 7 wherein the external analysis system comprises a computer.

### Claim 14 (depends on 1)

A mobile device according to claim 1 wherein the electronic data processing device is configured with said process for storing of data by a data processing program, the data processing program being reproduced into the mobile device via the interface device.

### Claim 15

A method for a mobile device comprising:
acquiring, with a sensor of a mobile device, a respiratory flow signal indicative of a respiratory gas flow;
initiating, with an electronic data processing unit of the mobile device, a process for storing of data indicative of a temporal course of the respiratory flow signal to a memory of the mobile device; and
transmitting, with an interface device of the mobile device, the stored data to an external analysis system.

### Claim 16 (depends on 15)

A method according to claim 15, wherein the interface device wirelessly transmits the stored data to the external analysis system.

### Claim 17 (depends on 16)

The method according to claim 16 wherein the interface device is an infrared interface.

### Claim 18 (depends on 15)

A method according to claim 15, wherein for the acquiring, the sensor is connected to a mask device.

### Claim 19 (depends on 15)

A method according to claim 15, further comprising powering the mobile device with a battery.

### Claim 20 (depends on 15)

A method according to claim 15, further comprising, with the electronic data processing unit:
terminating the initiated process for storing of data by evaluation of a time criterion; and/or
terminating the initiated process for storing of data when the respiratory flow signal fulfils a shutdown criterion within a shutdown time window.

### Claim 21 (depends on 15)

A method according to claim 15, further comprising generating, with the external analysis system, evaluation features from the respiratory flow signal indicative of the respiratory gas flow and generating at least one evaluation result by subjecting the evaluation features to an associative analysis.

### Claim 22 (depends on 21)

A method according to claim 21, wherein the evaluation features are generated based on correlation criteria.

### Claim 23 (depends on 22)

A method according to claim 22, wherein the correlation criteria are applied to a first derivative and/or a second derivative of the temporal course of the respiratory flow signal.

### Claim 24 (depends on 21)

A method according to claim 21, wherein flow-limited breathing is recognised based on the associative analysis of the evaluation features.

### Claim 25 (depends on 21)

A method according to claim 21, wherein at least one part of the evaluation features is generated under consideration of a first derivative and/or a second derivative of the temporal course of the respiratory flow signal.

### Claim 26 (depends on 15)

A method according to claim 15, further comprising generating the stored data in a visualization by a user terminal.

### Claim 27 (depends on 21)

A method according to claim 21 wherein the external analysis system comprises a computer.

### Claim 28 (depends on 15)

A method according to claim 15, further comprising configuring, by a data processing program, the electronic data processing unit with said process for storing of data, the data processing program being reproduced into the mobile device via the interface device.
