Determining facial metrics of a patient and identifying a custom mask for the patient therefrom

Patent metadata

Field	Value
Publication number	US-11338102-B2
Application number	US-201816220043-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Dec 19, 2017
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

A method of determining facial metrics of a patient includes: capturing a first image of the patient with an image capturing device positioned in a first known position with the assistance of a positioning device, capturing a second image of the patient with the image capturing device positioned in a second known position different that the first known position with the assistance of the positioning device, and determining facial metrics of the patient by analyzing the first image and the second image.

First claim

What is claimed is:

1. A method of determining facial metrics of a patient, the method comprising:
capturing a first image of the patient with an image capturing device positioned in a first known position with the assistance of a positioning device;
capturing a second image of the patient with the image capturing device positioned in a second known position different that the first known position with the assistance of the positioning device; and
determining facial metrics of the patient by analyzing the first image and the second image, wherein the positioning device comprises:
a first elongate arm member having a first end and an opposite second end;
an area for the patient to place their chin disposed at or about the first end;
a handle coupled at or about the first end of the first elongate arm member, the handle structured to be grasped by the patient to hold the positioning device under the chin of the patient;
a second elongate arm member having a first end coupled at or about the second end of the first elongate arm member and an opposite second end,
a third elongate arm member having a first end coupled at or about second end of the first elongate arm member and an opposite end, and
a number of regions delineated on one or both of the second and third elongate arm members for receiving the image capturing device.

2. The method of claim 1 , wherein the first image and the second image comprise 2D images.

3. The method of claim 1 , wherein the image capturing device comprises a camera of an electronic device.

4. The method of claim 3 , wherein the electronic device comprises one of a smartphone device or an electronic tablet.

5. The method of claim 4 , wherein the smartphone or tablet comprises a front-facing camera and a rear-facing camera and wherein the first image and the second image are each captured using the front facing camera.

6. The method of claim 4 , wherein the smartphone or tablet comprises a front-facing camera and a rear-facing camera and wherein the first image and the second image are each captured using the rear-facing camera.

7. The method of claim 1 , wherein the positioning device further comprises:
an infrared projector; and
an infrared sensor.

8. The method of claim 7 , wherein the positioning device is structured to provide an audible or visual feedback to the patient.

9. The method of claim 1 , wherein the positioning device includes secondary indicia indicating a position for engaging the patient with the positioning device and a position for placing the image capturing device in regard to the positioning device.

10. The method of claim 1 , wherein one of the second or third elongate arm members includes a remotely operable image capturing device, and wherein capturing one of the first image or the second image is captured by the remotely operable image capturing device.

11. A method for identifying a mask for a patient, the method comprising:
capturing a first image of the patient with an image capturing device positioned in a first known position with the assistance of a positioning device;
capturing a second image of the patient with the image capturing device positioned in a second known position different that the first known position with the assistance of the positioning device;
determining facial metrics of the patient by analyzing the first image and the second image;
determining a mask for the patient using the determined facial metrics of the patient; and
identifying the mask to the patient, wherein the positioning device comprises:
a first elongate arm member having a first end and an opposite second end;
an area for the patient to place their chin disposed at or about the first end;
a handle coupled at or about the first end of the first elongate arm member, the handle structured to be grasped by the patient to hold the positioning device under the chin of the patient;
a second elongate arm member having a first end coupled at or about the second end of the first elongate arm member and an opposite second end;
a third elongate arm member having a first end coupled at or about second end of the first elongate arm member and an opposite second end; and
a number of regions delineated on one or both of the second and third elongate arm members for receiving the image capturing device.

12. The method of claim 11 , wherein identifying the mask to the patient comprises providing the patient with a specification of the mask.

13. The method of claim 11 , wherein identifying the mask to the patient comprises providing the patient with the mask.

Assignees

• Koninklijke Philips Nv

Inventors

• Ho Peter Chi Fai
• Haibach Richard Thomas
• Steed Daniel
• Baiko Robert William

Classifications

• H04N23/90

  Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums · CPC title

• A61B5/0064 Primary

  Body surface scanning · CPC title

• A61B5/4818

  Sleep apnoea · CPC title

• A61M16/0666

  Nasal cannulas or tubing (devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02) · CPC title

• G06T7/60

  Analysis of geometric attributes · CPC title