Patent ID: 8573215
Filing Date: 2013-11-05
Classification: A61M,A62B,Y10T

Abstract:
1. A method of making a series of full-face cushions for patient interfaces that deliver breathable gas to patients, each of the full-face cushions including a nasal bridge region, cheek regions and a chin region, each of the full-face cushions defining, at least in part, a breathing cavity, the method comprising: making a first full-face cushion, the first full-face cushion comprising a first membrane including a first nasal bridge region, first cheek regions and a first chin region forming a first continuous sealing structure to form a continuous seal on a nasal bridge region, cheek regions, and a chin region of the patient's face, the first membrane having an inner edge that defines a first triangular-shaped aperture to receive the patient's nose and mouth, the first triangular-shaped aperture including a lower portion having a first mouth width; making a second full-face cushion, the second full-face cushion comprising a second membrane including a second nasal bridge region, second cheek regions and a second chin region forming a second continuous sealing structure to form a continuous seal on a nasal bridge region, cheek regions, and a chin region of the patient's face, the second membrane having an inner edge that defines a second triangular-shaped aperture to receive the patient's nose and mouth, the second triangular-shaped aperture including a lower portion having a second mouth width; making a third full-face cushion, the third full-face cushion comprising a third membrane including a third nasal bridge region, third cheek regions and a third chin region forming a third continuous sealing structure to form a continuous seal on a nasal bridge region, cheek regions, and a chin region of the patient's face, the third membrane having an inner edge that defines a third triangular-shaped aperture to receive the patient's nose and mouth, the third triangular-shaped aperture including a lower portion having a third mouth width; and making a fourth full-face cushion, the fourth full-face cushion comprising a fourth membrane including a fourth nasal bridge region, fourth cheek regions and a fourth chin region forming a fourth continuous sealing structure to form a continuous seal on a nasal bridge region, cheek regions, and a chin region of the patient's face, the fourth membrane having an inner edge that defines a fourth triangular-shaped aperture to receive the patient's nose and mouth, the fourth triangular-shaped aperture including a lower portion having a fourth mouth width, wherein, in a front view, each of the first, second, third and fourth triangular-shaped apertures has a different height, and the first, second, third, and fourth mouth widths are the same.