PATIENT INTERFACE DEVICE WITH TILT ANGLE ADJUSTING MECHANISM

• US 20140326248A1
• Filed: 10/31/2012
• Published: 11/06/2014
• Est. Priority Date: 11/15/2011
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Haibach, Richard Thomas, Andrews, Derrick Blake
• Granted Patent: US 9,901,696 B2
• Time in Patent Office: Days
• US Class Current: 128/207.18
• CPC Class Codes: A61M 16/0605 Means for improving the adaptation of the mask to the patient
• CPC Class Codes: A61M 16/0622 having an underlying cushion
• CPC Class Codes: A61M 16/0666 Nasal cannulas or tubing devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02
• CPC Class Codes: A61M 16/0683 Holding devices therefor

Abstract

A patient interface device (8) includes a cushion assembly (16) including a nasal cushion member (20), and a frame assembly (14) having frame member (48) having a first arm (54A) and a second arm (54B). The cushion assembly is rotatably coupled to the first and second arm such that the cushion assembly rotates with respect to the frame assembly about an axis extending through the first arm and the second arm. In addition, the frame assembly includes a drive mechanism (50) received and held by the frame member, the drive mechanism being operatively coupled to the cushion assembly such that actuation of the drive mechanism changes a tilt angle of the cushion assembly relative to the frame assembly.

Claims

1. A patient interface device, comprising:

a cushion assembly including a nasal cushion member and an extension member; and

a frame assembly including a frame member comprising;

a first arm,

a second arm, wherein the cushion assembly is rotatably coupled to the first arm and the second arm such that the cushion assembly is rotatable with respect to the frame assembly about an axis extending through the first arm and the second arm,

a central portion positioned below the nasal cushion member, wherein the first arm extends from a first side of the central portion and the second arm extends from a second side of the central portion, wherein the extension member extends from the cushion assembly in a direction toward the central portion, and

a drive mechanism received and held by the frame member, the drive mechanism being operatively coupled to the extension member such that actuation of the drive mechanism changes a tilt angle of the cushion assembly relative to the frame assembly.

2. The patient interface device according to claim 1, wherein the extension member has a gear element provided on a distal end of the extension member, and wherein the drive mechanism is operatively coupled to the gear element such that actuation of the drive mechanism drives the gear element and changes the tilt angle of the cushion assembly relative to the frame assembly.

3. The patient interface device according to claim 2, wherein the cushion assembly includes a first post member extending from a first side of the cushion assembly and a second post member extending from a second side of the cushion assembly, and wherein the first post member is rotatably coupled to the first arm and the second post member is rotatably coupled to the second arm such that the cushion assembly is rotatable with respect to the frame member about an axis extending through the first post member and the second post member.

4. The patient interface device according to claim 3, wherein the cushion assembly further comprises a sub-frame member coupled to the nasal cushion, the first and second post members extending from opposite sides of the sub-frame member.

5. The patient interface device according to claim 4, wherein the nasal cushion member is fluidly coupled to a first side of the sub-frame member, the patient interface device including a fluid coupling conduit fluidly coupled to a second side of the sub-frame member such that the fluid coupling conduit is in fluid communication with the nasal cushion member.

6. The patient interface device according to claim 4, wherein the sub-frame member includes the extension member extending downwardly from a side of the sub-frame member.

7. The patient interface device according to claim 4, wherein the sub-frame member includes a first arm having the first post member extending therefrom and a second arm having the second post member extending therefrom, and wherein the extension member extends downwardly from the first arm.

8. The patient interface device according to claim 2, wherein the gear element comprises a spur gear and the drive mechanism comprises a worm member.

9. The patient interface device according to claim 8, wherein the worm member is rotatably held by the first arm.

10. The patient interface device according to claim 9, wherein the drive mechanism further comprises a knob member coupled to the worm member, wherein the first arm includes a first orifice and a second orifice aligned with the first orifice, wherein a first end of the worm member is received through the first orifice and wherein the knob member is coupled to a second end of the worm member through the second orifice.

11. The patient interface device according to claim 2, wherein the gear element is an integrally formed part of the nasal cushion member.

12. The patient interface device according to claim 4, wherein the nasal cushion includes a channel having a shape matching a shape of the sub-frame member, the channel receiving therein the sub-frame member.

14. The patient interface device according to claim 1, wherein the nasal cushion member includes a main body portion having first and second nasal prongs extending from a top side thereof.

13. (canceled)