# US 2026/0096743 A1 · Determining respiratory phase information

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- Number: US 2026/0096743 A1
- Document ID: US20260096743A1
- Status: Published application
- Kind: A1
- Application number: 19/351,123
- Filed: 2025-10-06
- Published: 2026-04-09
- Earliest claimed: 2024-10-04
- Assignees: Inspire Medical Systems, Inc.
- Applicants: Inspire Medical Systems, Inc.
- Inventors: Maxwell P. Lundeen; Gerardo Rodriguez Orellana
- Web page: https://patentgrep.com/patent/US20260096743A1

## CPC

- A61B 5/0816: {Measuring devices for examining respiratory frequency (measuring frequency of electric signals G01R23/00)}
- A61B 5/4818: {Sleep apnoea}
- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/087: Measuring breath flow
- A61B 5/1135: {by monitoring thoracic expansion}
- A61B 5/4815: {Sleep quality}
- A61B 5/7267: {involving training the classification device}
- A61B 5/7282: {Event detection, e.g. detecting unique waveforms indicative of a medical condition (cough events A61B5/0823; seizures A61B5/4094; sleep apnoea A61B5/4818)}
- A61B 5/7435: {Displaying user selection data, e.g. icons in a graphical user interface}
- G16H 40/67: for remote operation
- G16H 50/20: for computer-aided diagnosis, e.g. based on medical expert systems
- A61B 5/0826: {Detecting or evaluating apnoea events (sleep apnoea A61B5/4818)}
- A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A method includes receiving, at a first service provider, a sensed respiratory signal of a first respiratory sensing session. At or via the first service provider, the method includes determining respiratory phase information based on the received sensed respiratory signal.

## Claims

### Claim 1

A method comprising:
receiving, at a first service provider, a sensed respiratory signal of a first respiratory sensing session; and
determining, at the first service provider, respiratory phase information based on the received sensed respiratory signal.

### Claim 2 (depends on 1)

The method of claim 1, wherein the receiving comprises receiving the sensed respiratory signal from a medical service provider, and after the determining, communicating the determined respiratory phase information from the first service provider to the medical service provider.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first respiratory sensing session comprises a formal sleep study including polysomnographic information.

### Claim 4 (depends on 1)

The method claim 1, wherein the determining comprises:
detecting each change point of a plurality of change points in the sensed respiratory signal, wherein each change point includes:
a change in a direction of the sensed respiratory signal; and
a magnitude of the change exceeding a selectable first threshold.

### Claim 5 (depends on 4)

The method of claim 4, wherein the determining comprises:
classifying each change point as at least one of:
a first transition from an inspiration phase to an expiration phase;
a second transition from the expiration phase to an expiration pause phase; and
a third transition from the expiration pause phase to the inspiration phase.

### Claim 6 (depends on 5)

The method of claim 5, comprising:
implementing, via the first service provider, the determination via application of a constructed data model based on a current input of the received sensed respiratory signal to produce a determinable output including identification of the respective first, second, and third transitions in the received, sensed respiratory signal.

### Claim 7 (depends on 6)

The method of claim 6, comprising wherein the received, sensed respiratory signal is obtained from an airflow sensor.

### Claim 8 (depends on 6)

The method of claim 6, further comprising:
implementing construction of the constructed data model via:
a known input, which includes a previously sensed respiratory signal; and
a known output, which includes a previously performed manual identification of the inspiration phase, the expiration phase, and the expiration pause phase of the previously sensed respiratory signal.

### Claim 9 (depends on 8)

The method of claim 8, wherein the manual identification includes identification of at least one of
the first transition from the inspiration phase to the expiration phase;
a second transition from the expiration phase to the expiration pause phase; and
a third transition from the expiratory pause phase to the inspiration phase.

### Claim 10 (depends on 8)

The method of claim 8, wherein the previously performed manual identification comprises the detecting and the classifying of each change point of the previously sensed respiratory signal.

### Claim 11

A first service provider for providing sleep disordered breathing care, the first service provider comprising:
a control portion programmed to:
receive, from a medical service provider, a sensed respiratory signal of a first respiratory sensing session; and
determine, at the first service provider, respiratory phase information based on the received sensed respiratory signal.

### Claim 12 (depends on 11)

The device of claim 11, wherein the control portion is programmed to receive the sensed respiratory signal from a medical service provider, and after the determining, communicate the determined respiratory phase information from the first service provider to the medical service provider.

### Claim 13 (depends on 11)

The device of claim 11, wherein the first respiratory sensing session comprises a formal sleep study including polysomnographic information.

### Claim 14 (depends on 11)

The device method claim 11, wherein the control portion is programmed to implement the determining to comprise:
detecting each change point of a plurality of change points in the sensed respiratory signal, wherein each change point includes:
a change in a direction of the sensed respiratory signal; and
a magnitude of the change exceeding a selectable first threshold.

### Claim 15 (depends on 14)

The device of claim 14, wherein the control portion is programmed to implement the determining to comprise:
classifying each change point as at least one of:
a first transition from an inspiration phase to an expiration phase;
a second transition from the expiration phase to an expiration pause phase; and
a third transition from the expiration pause phase to the inspiration phase.

### Claim 16 (depends on 15)

The device of claim 15, wherein the control portion is programmed to implement, via the first service provider, the determination via application of a constructed data model based on a current input of the received sensed respiratory signal to produce a determinable output including identification of the respective first, second, and third transitions in the received, sensed respiratory signal.

### Claim 17 (depends on 16)

The device of claim 16, wherein the received, sensed respiratory signal is obtained from an airflow sensor.

### Claim 18 (depends on 16)

The device of claim 16, wherein the control portion is programmed to implement construction of the constructed data model via:
a known input, which includes a previously sensed respiratory signal; and
a known output, which includes a previously performed manual identification of the inspiration phase, the expiration phase, and the expiration pause phase of the previously sensed respiratory signal.

### Claim 19 (depends on 18)

The device of claim 18, the control portion is programmed to perform the manual identification to include identification of at least one of
the first transition from the inspiration phase to the expiration phase;
a second transition from the expiration phase to the expiration pause phase; and
a third transition from the expiratory pause phase to the inspiration phase.

### Claim 20 (depends on 18)

The device of claim 18, wherein the previously performed manual identification comprises the detecting and the classifying of each change point of the previously sensed respiratory signal.