# US 11,305,084 B2 · Respiratory mask and related portions, components or sub-assemblies

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- Number: US 11,305,084 B2
- Document ID: US11305084B2
- Status: Granted
- Kind: B2
- Application number: 16/677,496
- Filed: 2019-11-07
- Published: 2020-04-23
- Granted: 2022-04-19
- Earliest claimed: 2014-08-25
- Assignees: Fisher & Paykel Healthcare Limited
- Applicants: Fisher & Paykel Healthcare Limited
- Inventors: Gregory James Olsen; Melissa Catherine Bornholdt; Campbell Neil Addison Martin; Tony William Spear; Simon Mittermeier; Hamish Joshua Rose; Max Leon Betteridge; Christopher Earl Nightingale; Matthew James Pedersen; Sophia Adele Johnson; Mark John Arrowsmith
- Web page: https://patentgrep.com/patent/US11305084B2

## CPC

- A61M 16/0622: {having an underlying cushion}
- A61M 16/0611: {with a gusset portion}
- A61M 16/0616: {with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure}
- A61M 16/0633: {with forehead support}
- A61M 16/0683: {Holding devices therefor}
- A61M 16/0694: {Chin straps}
- A61M 16/0825: {with ball-sockets}
- A61M 16/0875: {Connecting tubes}
- A62B 18/08: Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices (eye-pieces for protective goggles A61F9/02; composition of materials for the windows or other transparent parts A62D7/00)
- A61M 2202/0225: Carbon oxides, e.g. Carbon dioxide
- 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)}
- A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00)

## Abstract

A respiratory mask for providing positive pressure therapy and a bias-flow venting system configured to reduce discernable draft generated by exhausted air are disclosed herein. The respiratory mask has a ball jointed elbow, one or more detachable forehead pieces and a headgear with a spacer fabric region. The elbow is configured to be removable when oriented to a predetermined position. The forehead pieces are provided in one or more sizes. The spacer fabric region having two or more layers wherein the raw edges are turned to the inside of the layers. The seal having improved seal performance and accommodating a wider variety of facial geometries. The bias-flow system having a tube and exhaust holes radially aligned on a bead of the tube. The bias-flow system also having an annular component exhaust holes and a shroud having a plenum chamber around the exhaust holes.

## Claims

### Claim 1

A respiratory mask comprising:
a frame portion configured to support a seal, wherein the seal is configured to form a substantially airtight seal with a user's face; and
a conduit connector comprising a ball joint end;
wherein the frame portion defines an opening configured to receive the ball joint end of the conduit connector, the frame portion comprising a conduit connector removal notch configured to provide a leverage point for removal of the conduit connector;
wherein the conduit connector comprises a portion configured to be received in the conduit connector removal notch to facilitate removal of the conduit connector from the frame portion.

### Claim 2 (depends on 1)

The respiratory mask of claim 1, wherein the ball joint end includes an end surface, the end surface comprising a tapered chamfer that defines an angle relative to a remainder of the end surface.

### Claim 3 (depends on 1)

The respiratory mask of claim 1, wherein the opening is defined by an insert of the frame portion.

### Claim 4 (depends on 1)

The respiratory mask of claim 1, wherein the conduit connector is an elbow.

### Claim 5 (depends on 1)

The respiratory mask of claim 1, wherein the frame portion comprises a cushion module that supports the seal and a headgear connector portion configured to be connected to a headgear.

### Claim 6 (depends on 1)

The respiratory mask of claim 1, wherein the frame portion further comprises a male forehead piece connector configured to connect to a separate forehead piece, which provides for a connection to a headgear.