US 7,743,768 B2 · Patient interface device with dampening cushion

Abstract

A cushion for use with a patient interface device includes a first end portion, which typically contacts the patient's face when the patient interface device is worn, a second end and/or opposite the first end, which is typically coupled to a portion of the patient interface device, a chamber, which is typically disposed between the first and second end portions, and an orifice. The chamber is structured to receive and store a dampening medium therein; and the orifice, which is in operative communication with the chamber, controls the passage of the dampening medium into and/or out of the chamber. A patient interface device including a mask shell and the cushion is also described.

Claims13

Dependent claims

A cushion for a patient interface device, the cushion comprising:

a first end portion structured to contact a portion of a patient's face;
a second end portion structured to couple to a portion of the patient interface device, the second end portion being opposite the first end portion;
a chamber disposed between the first end portion and the second end portion, the chamber structured to receive and store a dampening medium therein;
an orifice in operative communication with the chamber, the orifice not being selectively openable and closable by a user during use and being structured to allow the continuous passage of the dampening medium to and from the chamber when the patient interface device is donned by the user;
an outer wall connecting a first edge of the first end portion to a first edge of the second end portion;
and
an inner wall connecting a second edge of the first end portion to a second edge of the second end portion, wherein the chamber is defined by the first end portion, the inner wall, the outer wall, and at least one of the second end portion and the portion of the patient interface device.

4 more elements

A cushion for a patient interface device, the cushion comprising:

a first end portion having a first end wall structured to contact a portion of a patient's face;
a second end portion having a second end wall structured to be coupled to a portion of the patient interface device, the second end portion being opposite the first end portion;
an outer wall connecting a first edge of the first end wall to a first edge of the second end wall;
and
an inner wall connecting a second edge of the first end wall to a second edge of the second end wall, wherein the first end portion, the second end portion, the inner wall, and the outer wall define a chamber therebetween;
wherein the chamber is structured to receive and store a dampening medium therein and wherein the chamber is in operative communication with an orifice, the orifice not being selectively openable and closable by a user during use and being structured to allow the continuous passage of the dampening medium to and from the chamber when the patient interface device is donned by the user.

3 more elements

Dependencies are inferred from the claim text.

Patient interface device with dampening cushion

Life of this patent

Patient interface device with dampening cushion

Life of this patent

Abstract

Claims13