Nasal Mask
First Claim
1. A nasal mask comprising:
- a main body unit including a main body defining a chamber, two connection members respectively connected to two opposite sides of said main body, and two engaging holes each formed in proximity to a junction between one of said connection members and said main body, said main body having an inner end that is adapted to contact a user'"'"'s face and that has an annular inner rim defining an inner opening communicating spatially with said chamber, and an outer end that is opposite to said inner end and that has an annular outer rim defining a connecting hole communicating spatially with said chamber, said annular inner rim being recessed steppedly to form an annular recess that extends around said inner opening, and an annular shoulder that is formed as an annular floor for said annular recess and that faces in a direction toward the user'"'"'s face, said annular inner rim being formed with a seal ring that projects from said annular shoulder;
a head strap unit having two opposite ends connected respectively to said connection members;
a nose unit including a main plate having a peripheral edge received engagingly in said annular recess and abutting against said annular shoulder and said seal ring, two nasal prong members connected to said main plate, and two engaging plates projecting respectively from two opposite sides of said peripheral edge to engage said engaging holes, respectively; and
an air supply unit opposite to said nose unit and connected to said annular outer rim.
1 Assignment
0 Petitions
Accused Products
Abstract
A nasal mask includes a main body having an annular inner rim and an annular outer rim, two connection members respectively connected to two opposite sides of the main body, and two engaging holes each formed in proximity to a junction between one connect ion member and the main body. The inner rim is formed with an annular shoulder and a seal ring that projects from the shoulder. A head strap unit has two opposite ends connected to the connect ion members. A nose unit includes a main plate having a peripheral edge abutting against the shoulder and the seal ring, two nasal prong members connected to the main plate, and two engaging plates to engage the engaging holes. An air supply unit is connected to the outer rim.
79 Citations
6 Claims
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1. A nasal mask comprising:
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a main body unit including a main body defining a chamber, two connection members respectively connected to two opposite sides of said main body, and two engaging holes each formed in proximity to a junction between one of said connection members and said main body, said main body having an inner end that is adapted to contact a user'"'"'s face and that has an annular inner rim defining an inner opening communicating spatially with said chamber, and an outer end that is opposite to said inner end and that has an annular outer rim defining a connecting hole communicating spatially with said chamber, said annular inner rim being recessed steppedly to form an annular recess that extends around said inner opening, and an annular shoulder that is formed as an annular floor for said annular recess and that faces in a direction toward the user'"'"'s face, said annular inner rim being formed with a seal ring that projects from said annular shoulder; a head strap unit having two opposite ends connected respectively to said connection members; a nose unit including a main plate having a peripheral edge received engagingly in said annular recess and abutting against said annular shoulder and said seal ring, two nasal prong members connected to said main plate, and two engaging plates projecting respectively from two opposite sides of said peripheral edge to engage said engaging holes, respectively; and an air supply unit opposite to said nose unit and connected to said annular outer rim. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification