# US 2013/0152938 A1 · Patient interface device with auto-adjusting cushion

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- Number: US 2013/0152938 A1
- Document ID: US20130152938A1
- Status: Published application
- Kind: A1
- Application number: 13/818,181
- Filed: 2011-08-18
- Published: 2013-06-20
- Earliest claimed: 2010-08-30
- Assignees: Koninklijke Philips Electronics N.V.
- Inventors: Gregory John Jablonski
- Web page: https://patentgrep.com/patent/US20130152938A1

## CPC

- A61M 16/0683: {Holding devices therefor}
- A61M 16/06: Respiratory or anaesthetic masks
- A61M 16/0605: {Means for improving the adaptation of the mask to the patient}
- A61M 16/0057: {Pumps therefor}
- A61M 16/0622: {having an underlying cushion}
- 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)}
- A61M 16/0816: {Joints or connectors}
- A61M 16/0875: {Connecting tubes}
- A61M 2016/0661: {with customised shape}
- A61M 2205/0216: Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
- A61M 2210/0618: Nose
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A patient interface device (2) includes a frame member (4) and a cushion (6) having a main body, a sealing portion, and first and second posts extending from the main body. The frame member defines a first orifice and a second orifice. The first post of the cushion is rotateably received within the first orifice and the second post is rotateably received within the second orifice in a manner that permits the cushion to rotate relative to the frame member.

## Claims

### Claim 1

A patient interface device, comprising:
a frame member defining a first orifice and a second orifice, the frame member including a generally annular central member defining a central orifice, a first main arm that extends from a first side of the central member and a second main arm extends from a second side of the central member; and
a cushion having a main body, a sealing portion provided at a first end of cushion, and a first post extending from a first side of the main body and a second post extending from a second side of the main body, wherein a second end of the cushion opposite the sealing portion defines a fluid coupling orifice structured to be coupled to a fluid connector, wherein the second end including the fluid coupling orifice is inserted through the central orifice of the central member of the frame member, and wherein the first post is rotateably received within the first orifice and the second post is rotateably received within the second orifice in a manner that permits the cushion to rotate relative to the frame member.

### Claim 2 (depends on 1)

The patient interface device according to claim 1, wherein the first orifice and the second orifice are circular and the first post and the second post are cylindrical.

### Claim 3 (depends on 2)

The patient interface device according to claim 2, wherein the first post and the second post each include an inner cylindrical portion, an outer cylindrical portion, and an enlarged portion provided between the inner cylindrical portion and the outer cylindrical portion.

### Claim 4 (depends on 1)

The patient interface device according to claim 1, wherein the first main arm includes a first branching member extending upwardly from a first end of the first main arm and a second branching member extending downwardly from the first end of the first main arm, and the second main arm includes a third branching member extending upwardly from a first end of the second arm and a fourth branching member extending downwardly from the first end of the second main arm.

### Claim 5 (depends on 4)

The patient interface device according to claim 4, wherein the first orifice is provided in a second end of the first main arm and the second orifice is provided in a second end of the second main arm.

### Claim 6

(canceled)

### Claim 7 (depends on 4)

The patient interface device according to claim 4, wherein the first main arm and the second main arm are structured to extend horizontally from the central member when the patient interface device is donned by a patient.

### Claim 8 (depends on 7)

The patient interface device according to claim 7, wherein the first and third branching members are structured to be positioned behind the eyes of the patient and the second and fourth branching members are structured to be positioned behind the mouth of the patient when the patient interface device is donned by the patient.

### Claim 9 (depends on 8)

The patient interface device according to claim 8, wherein each of the first, second, third and fourth branching members includes a connector member for connecting to a respective strap of a headgear assembly.

### Claim 10 (depends on 1)

The patient interface device according to claim 1, wherein the first main arm has a first outer surface, a first inner surface, a first top edge and a first bottom edge, wherein the first main arm is free to flex in a direction that is generally parallel to the first top edge and the first bottom edge, and is not free to flex in a direction that is generally perpendicular to the first top edge and the first bottom edge, wherein the first branching member has a second outer surface, a second inner surface, a second top edge and a second bottom edge, wherein the first branching member is free to flex in a direction that is generally parallel to the second top edge and the second bottom edge, and is not free to flex in a direction that is generally perpendicular to the second top edge and the second bottom edge, and wherein the second branching member has a third outer surface, a third inner surface, a third top edge and a third bottom edge, wherein the second branching member is free to flex in a direction that is generally parallel to the third top edge and the third bottom edge, and is not free to flex in a direction that is generally perpendicular to the third top edge and the third bottom edge.

### Claim 11 (depends on 1)

The patient interface device according to claim 1, wherein the first post and the second post are each provided on the main body at a respective position about midway between the first end and the second end of the cushion.

### Claim 12

(canceled)

### Claim 13

A method of adjusting a patient interface device structured to deliver a flow of breathing gas to an airway of a patient, comprising:
(a) donning the patient interface device, wherein the patient interface device includes:
a frame member defining a first orifice and a second orifice, the frame member including a generally annular central member defining a central orifice, a first main arm that extends from a first side of the central member and a second main arm extends from a second side of the central member; and
a cushion having a main body, a sealing portion provided at a first end of cushion, and a first post extending from a first side of the main body and a second post extending from a second side of the main body, wherein a second end of the cushion opposite the sealing portion defines a fluid coupling orifice structured to be coupled to a fluid connector, wherein the second end including the fluid coupling orifice is inserted through the central orifice of the central member of the frame member, and wherein the first post is rotateably received within the first orifice and the second post is rotateably received within the second orifice in a manner that permits the cushion to rotate relative to the frame member; and
(b) causing the cushion to rotate relative to the frame member when the sealing portion is engaged with the face of the patient.

### Claim 14 (depends on 13)

The method according to claim 13, wherein the first main arm includes a first branching member extending upwardly from a first end of the first main arm and a second branching member extending downwardly from the first end of the first main arm, the second main arm includes a third branching member extending upwardly from a first end of the second arm and a fourth branching member extending downwardly from the first end of the second main arm, the frame member, wherein the method further includes causing one or more of the first main arm, the second main arm, the first branching member, second branching member, third branching member and the fourth branching member to flex when the patient interface device is donned by the patient.

### Claim 15 (depends on 14)

The method according to claim 14, wherein the first main arm and the second main arm are structured to extend horizontally from the central member responsive to the donning.

### Claim 16 (depends on 15)

The method according to claim 15, wherein the first and third branching members are structured to be positioned behind the eyes of the patient and the second and fourth branching members are structured to be positioned behind the mouth of the patient responsive to the donning.

### Claim 17 (depends on 14)

The method according to claim 14, wherein the first main arm has a first outer surface, a first inner surface, a first top edge and a first bottom edge, wherein the first main arm is caused to flex in a direction that is generally parallel to the first top edge and the first bottom edge, wherein the first branching member has a second outer surface, a second inner surface, a second top edge and a second bottom edge, wherein the first branching member is caused to flex in a direction that is generally parallel to the second top edge and the second bottom edge, and wherein the second branching member has a third outer surface, a third inner surface, a third top edge and a third bottom edge, wherein the second branching member is caused to flex in a direction that is generally parallel to the third top edge and the third bottom edge.

### Claim 18

A cushion for a patient interface device, comprising:
a main body;
a sealing portion provided at a first end the main body, wherein a second end of the main body opposite the sealing portion defines a fluid coupling orifice structured to be coupled to a fluid connector;
a first post extending from a first side of the main body and structured to be rotateably received within a first orifice of a frame member of the patient interface device; and
a second post extending from a second side of the main body and structured to be rotateably received within a second orifice of a frame member of the patient interface device, wherein the first post and the second post are cylindrical and wherein the first post and the second post each include an inner cylindrical portion, an outer cylindrical portion, and an enlarged portion provided between the inner cylindrical portion and the outer cylindrical portion.

### Claim at position 19

19-20. (canceled)