Patent ID: 9381316
Filing Date: 2016-07-05
CPC Classification: A61M,Y10T

Claim Text:
1. An interchangeable mask system for delivering breathable gas to a patient, comprising: at least first and second cushion components that are different structurally from one another in at least one aspect, each of the cushion components including a front portion and a cushion structured to engage a patient's face, the front portion and the cushion of each of the at least first and second cushion components defining a mask interior breathing chamber, the front portion of each of the at least first and second cushion components having an opening by which the breathable gas is delivered to the mask interior breathing chamber thereof; and a common frame configured to interchangeably interface with each of the at least first and second cushion components, wherein the common frame is external to the mask interior breathing chamber defined by each of the at least first and second cushion components, wherein the common frame does not define part of the mask interior breathing chamber defined by each of the at least first and second cushion components, wherein the front portion, the cushion, and the mask interior breathing chamber thereof of each of the at least first and second cushion components form a unit that as a whole is interchangeable with the common frame, wherein the common frame includes a first opening having a closed shape and a second opening having a closed shape that is spaced apart and superior to the first opening, and the front portion of each of the at least first and second cushion components includes a protrusion that is spaced apart and superior to the opening of each of the at least first and second cushion components, and the protrusion of each of the at least first and second cushion components is received within and exposed through the second opening of the common frame towards a front side of the common frame when each of the at least first and second cushion components is provided to the common frame to at least assist in preventing rotation between each of the at least first and second cushion components and the common frame, and wherein each of the at least first and second cushion components is structured to engage with the common frame in a fixed, non-adjustable position to prevent any relative or adjustable movement between each of the at least first and second cushion components and the common frame.