# US 11,298,556 B2 · WCD user interface response to a change in device orientation

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- Number: US 11,298,556 B2
- Document ID: US11298556B2
- Status: Granted
- Kind: B2
- Application number: 16/394,565
- Filed: 2019-04-25
- Published: 2019-10-31
- Granted: 2022-04-12
- Earliest claimed: 2018-04-25
- Assignees: West Affum Holdings Corp.
- Applicants: West Affum Holdings Corp.
- Inventors: Zoie R. Engman; Aaron J. Piazza; Erick M. Roane
- Web page: https://patentgrep.com/patent/US11298556B2

## CPC

- A61N 1/3904: {External heart defibrillators [EHD]}
- A61N 1/046: {Specially adapted for shock therapy, e.g. defibrillation}
- A61N 1/3912: {Output circuitry therefor, e.g. switches}
- A61N 1/3925: {Monitoring; Protecting}
- A61N 1/3968: {Constructional arrangements, e.g. casings (A61N1/375 takes precedence)}
- A61N 1/3975: {Power supply (A61N1/378 takes precedence)}
- A61N 1/3993: {User interfaces for automatic external defibrillators}
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

In one embodiment, a wearable cardioverter defibrillator (WCD) is described. The WCD includes a support structure worn by a patient. A processor is coupled to the support structure. The WCD also includes a discharge circuit coupled to an energy storage module, the discharge circuit configured to discharge the stored electrical charge through a body of the patient. The wearable cardioverter defibrillator also includes a user interface housing at least one sensor and responsive to changes in device orientation. The processor is configured to detect a motion at the user interface and determine when the motion is patient-activated. When the motion is patient-activated, the processor determines a direction of rotation. The processor determines an orientation of a display at the user interface based on the direction of rotation and orients the display at the user interface to appear upright to the patient.

## Claims

### Claim 1

A wearable cardioverter defibrillator (WCD), comprising:
a support structure configured to be worn by a patient;
a processor coupled to the support structure;
an energy storage module configured to store an electrical charge and in communication with the processor;
a discharge circuit coupled to the energy storage module, the discharge circuit in communication with the processor and configured to discharge the stored electrical charge through a body of the patient;
a memory coupled to the processor;
a user interface comprising at least one sensor and responsive to changes in device orientation; and
a processor configured to:
store patient orientation preferences in the memory,
detect a motion at the user interface,
determine whether the motion is patient-activated, and
when the motion is patient-activated:
determine an angle of rotation,
determine that the angle of rotation exceeds a first angular threshold,
determine an orientation of a display of the user interface, wherein a range of the orientation comprises a first range of angles that corresponds to the angle of rotation, the first range of angles comprises a first angle and a second angle, the first angle being greater than the second angle,
orient content of the display of the user interface to correlate with the first range of angles when the angle of rotation exceeds the first angle, and
maintain the orientation of the display when the angle of rotation falls below the first angle so long as the first angle of rotation exceeds the second angle,
when the motion is not patient-activated:
orient the content of the user interface to display the content based on the patient orientation preferences.

### Claim 2 (depends on 1)

The WCD of claim 1, wherein the processor is further configured to:
determine that the angle of rotation exceeds a second angular threshold,
determine a second orientation of the display, wherein a range of the second orientation comprises a second range of angles that corresponds to the angle of rotation, and
orient the content of the display to correlate with the second range of angles.

### Claim 3 (depends on 2)

The WCD of claim 2, wherein at least one of the first and the second angular threshold is between 20 and 60 degrees from a baseline plane of the user interface.

### Claim 4 (depends on 3)

The WCD of claim 3, wherein at least one of the first and the second angular threshold is between 30 and 50 degrees from the baseline plane.

### Claim 5 (depends on 2)

The WCD of claim 2, wherein the processor is further configured to:
determine an axis of rotation of the user interface.

### Claim 6 (depends on 1)

The WCD of claim 1, wherein the angle of rotation may be one of clockwise or counterclockwise.

### Claim 7 (depends on 1)

The WCD of claim 1, wherein the at least one sensor comprises one or more of an accelerometer, gyroscope, or a combination thereof.

### Claim 8 (depends on 1)

The WCD of claim 1, wherein the processor is further configured to:
provide a visual status indicator when the motion is patient-activated.

### Claim 9 (depends on 1)

The WCD of claim 1, wherein the processor is further configured to:
activate the user interface when the motion is patient-activated.

### Claim 10 (depends on 1)

The WCD of claim 1, wherein the processor is further configured to:
determine a lateral location of the user interface on the patient; and
orient the content of the user interface to accommodate for the lateral location of the user interface.

### Claim 11

A wearable cardioverter defibrillator (WCD) system, comprising:
a support structure for wearing by a patient;
a defibrillator housing coupled to the support structure;
a discharge circuit in communication with the defibrillator housing, the discharge circuit configured to discharge a stored electrical charge through a body of the patient,
a communication device coupled to the support structure, the communication device configured to communicate a status of the WCD to the patient;
a memory coupled to the communication device;
at least one motion sensor coupled to the user interface, the motion sensor positioned to detect a movement of the user interface;
a user interface coupled to the communication device, the user interface configured to respond to changes in orientation; and
a processor within the communication device, the processor configured to:
store patient orientation preferences to the memory,
detect a motion at the user interface,
determine whether the motion is patient-activated, and
when the motion is patient-activated:
determine an angle of rotation,
determine that the angle of rotation exceeds a first angular threshold,
determine an orientation of a display of the user interface, wherein a range of the orientation comprises a first range of angles that corresponds to the angle of rotation, the first range of angles comprises a first angle and a second angle, the first angle being greater than the second angle,
orient content of the display of the user interface to correlate with the first range of angles when the angle of rotation exceeds the first angle, and
maintain the orientation of the display when the angle of rotation falls below the first angle so long as the first angle of rotation exceeds the second angle,
when the motion is not patient-activated:
orient the content of the user interface to display the content based on the patient orientation preferences.

### Claim 12 (depends on 11)

The WCD of claim 11, wherein the user interface has a baseline plane when the user interface is at rest.

### Claim 13 (depends on 12)

The WCD of claim 12, wherein the processor is further configured to:
determine that the angle of rotation exceeds a second angular threshold,
determine a second orientation of the display, wherein a range of the second orientation comprises a second range of angles that corresponds to the angle of rotation, and
orient the content of the display to correlate with the second range of angles.

### Claim 14 (depends on 13)

The WCD of claim 13, wherein at least one of the first and the second angular threshold is between 20 and 60 degrees from the baseline plane.

### Claim 15 (depends on 14)

The WCD of claim 14, wherein at least one of the first and the second angular threshold is between 30 and 50 degrees from the baseline plane.

### Claim 16 (depends on 11)

The WCD of claim 11, wherein the processor is further configured to:
determine an axis of rotation of the user interface.

### Claim 17 (depends on 11)

The WCD of claim 11, wherein the angle of rotation may be one of clockwise or counterclockwise.

### Claim 18 (depends on 11)

The WCD of claim 11, wherein the processor is further configured to:
provide a visual status indicator when the motion is patient-activated.

### Claim 19 (depends on 11)

The WCD of claim 11, wherein the processor is further configured to:
activate the user interface when the motion is patient-activated.

### Claim 20

A wearable cardioverter defibrillator (WCD) system, comprising:
a support structure for wearing by a patient;
one or more electrodes for delivering a charge to the patient, while the patient is wearing the support structure;
a discharge circuit coupled to the electrodes, the discharge circuit configured to store an electrical charge;
one or more processor(s) configured to activate the discharge circuit, the processor(s) in communication with the discharge circuit;
a communication device coupled to the support structure, the communication device configured to communicate a status of the WCD to the patient;
a memory coupled to the communication device;
a user interface coupled to the communication device, the user interface configured to respond to changes in orientation;
at least one motion sensor coupled to the user interface, the motion sensor configured to monitor a motion of the patient while the patient wears the communication device and to transmit the motion to the user interface for use in the response to the changes in orientation, wherein the one or more processor(s) further configured to:
store patient orientation preferences,
detect a motion at the user interface,
determine whether the motion is patient-activated, and
when the motion is patient-activated:
determine an angle of rotation,
determine that the angle of rotation exceeds a first angular threshold,
determine an orientation of a display of the user interface, wherein a range of the orientation comprises a first range of angles that corresponds to the angle of rotation, the first range of angles comprises a first angle and a second angle, the first angle being greater than the second angle,
orient content of the display of the user interface to correlate with the first range of angles when the angle of rotation exceeds the first angle, and
maintain the orientation of the display when the angle of rotation falls below the first angle so long as the first angle of rotation exceeds the second angle,
when the motion is not patient-activated:
orient the content of the user interface to display the content based on the patient orientation preferences.