초록 ▼

A nose mask for administering one or more gases such as oxygen to a human being comprises, in combination, (I) a shell having a front portion, a rear portion and a first opening comprising substantially the entire horizontal area beneath the wearer\s nose and (II) a hollow gas delivery tube containi

A nose mask for administering one or more gases such as oxygen to a human being comprises, in combination, (I) a shell having a front portion, a rear portion and a first opening comprising substantially the entire horizontal area beneath the wearer\s nose and (II) a hollow gas delivery tube containing at least one gas delivering and dispersing means. The mask enables a wearer to breathe, eat and converse in a substantially normal fashion while efficiently providing the wearer with a cloud of gas (enriched in the gas or gases being delivered) directly beneath the nose and in front of the mouth of the wearer. The mask is particularly useful in long-term oxygen therapy applications.

대표청구항 ▼

A nose mask for administering at least one type of gas to a human being, which comprises, in combination: (I) a shell having a rear portion, a front portion, and a first opening, said shell having a shape such that: (a) the rear portion has edges which substantially conform to the face of a wearer,

A nose mask for administering at least one type of gas to a human being, which comprises, in combination: (I) a shell having a rear portion, a front portion, and a first opening, said shell having a shape such that: (a) the rear portion has edges which substantially conform to the face of a wearer, (b) the front portion is adapted to extend over the nose of the wearer from the bridge of the nose down to a point just above the upper lip of the wearer thereby enabling the wearer to breathe, eat and converse in a substantially normal fashion, and (c) the first opening consists of the entire horizontal area situated beneath the wearer\s nose extending from the front portion to the rear portion of the shell along a line parallel to said point above the upper lip of the wearer and perpendicular to the face of the wearer; and (II) a length of hollow gas delivery tube contained within an inside region of the shell which region is defined as being the area between both sides of the front portion of the shell and the area between the lower edge of the wearer\s nose and said point above the wearer\s upper lip, the gas delivery tube extending from one side of the shell to the other in a straight line beneath the nose of the wearer, being affixed to the shell by a suitable attachment means and being adapted to receive at least one gas supply tube, any remaining end of said tube being sealed by a suitable sealing means when only one gas supply tube is employed to provide a source of gas to said delivery tube, said gas delivery tube containing two distinct gas delivering and dispersing means which are two rows of six round gas delivery openings separated by a 90°angle wherein the openings pass through one wall of said gas delivery tube and wherein adjacent openings are equally spaced from each other across the length of said tube and are situated such that the center of each row is located on a line which corresponds to the center of the wearer\s nose, one row being positioned such that the gas being delivered is directed up to the wearer\s nose and the other row being positioned such that the gas being delivered is directed at the front portion of the shell, at least one of said rows extending longitudinally over the surface of the gas delivery tube for a distance which is greater than the internal diameter of said hollow delivery tube.