Gas delivery device
First Claim
1. A system for delivery of a gas to a patient, the system comprising:
- a single tubular nasal cavity component comprising only two terminal ends, including one end for gas inlet and one end for gas outlet with a single gas flow path extending from the gas inlet end to the gas outlet ends, the tubular nasal component configured for insertion into a nostril of a patient and adapted to maintain an inserted position, the single tubular nasal cavity component comprising;
a first portion having a length H and a first longitudinal axis along the single gas flow path, and a single proximal end, the proximal end configured for insertion into a nostril of a patient, the proximal end flaring outward to increasingly wider dimensions as it extends toward the gas outlet end, anda second portion having a length T and a second longitudinal axis along the single gas flow path, the second portion having a gas inlet end configured to receive gas from a gas supply, a distal end of the second portion intersecting a distal end of the first portion in a bend portion of the single gas flow path, such that the second longitudinal axis and the first longitudinal axis intersect at an angle of between about 60 and about 80°
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wherein a ratio of H/T ranges from about 2.5 to about 1.18.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for delivery of a gas to a user has a single tubular nasal cavity component having only two terminal ends: a gas inlet and a gas outlet with a single gas flow path between. The component is configured for insertion into the nostril of a user and maintains the position without adhesive. The nasal cavity component includes a first portion having a first longitudinal axis along the single gas flow path. A proximal end of the first portion is flared outward for insertion into a nostril of a patient. A second portion has a second longitudinal axis, and a gas inlet end to receive gas from a gas supply. A distal end of the second portion intersects a distal end of the first portion in a bend portion, such that the first and second longitudinal axes intersect at an angle of between about 60 and about 80°.
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Citations
27 Claims
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1. A system for delivery of a gas to a patient, the system comprising:
a single tubular nasal cavity component comprising only two terminal ends, including one end for gas inlet and one end for gas outlet with a single gas flow path extending from the gas inlet end to the gas outlet ends, the tubular nasal component configured for insertion into a nostril of a patient and adapted to maintain an inserted position, the single tubular nasal cavity component comprising; a first portion having a length H and a first longitudinal axis along the single gas flow path, and a single proximal end, the proximal end configured for insertion into a nostril of a patient, the proximal end flaring outward to increasingly wider dimensions as it extends toward the gas outlet end, and a second portion having a length T and a second longitudinal axis along the single gas flow path, the second portion having a gas inlet end configured to receive gas from a gas supply, a distal end of the second portion intersecting a distal end of the first portion in a bend portion of the single gas flow path, such that the second longitudinal axis and the first longitudinal axis intersect at an angle of between about 60 and about 80°
;wherein a ratio of H/T ranges from about 2.5 to about 1.18. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for delivery of a gas to a patient, the system comprising:
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a single tubular nasal cavity component comprising only two terminal ends, including one end for gas inlet and one end for gas outlet with a single gas flow path extending from the gas inlet end to the gas outlet end, the tubular nasal component configured for insertion into a nostril of a patient and adapted to maintain an inserted position therein, the single tubular nasal cavity component comprising; a first portion having a length H and a first longitudinal axis along the single gas flow path, a proximal end of the first portion sized and configured for insertion into a nostril of a patient, the proximal end comprising a frusto-conical shape flaring outward to wider dimensions as it extends toward the gas outlet end, and having a cylindrical crown at the gas outlet end, and a second portion having a length T and a second longitudinal axis, the second portion having a gas inlet end to receive gas from a gas supply, a distal end of the second portion intersecting a distal end of the first portion in a bend portion of the single gas flow path, such that the second longitudinal axis and the first longitudinal axis intersect at an acute angle; wherein a ratio of H/T ranges from 2.5 to 1.18. - View Dependent Claims (22, 23, 24, 25)
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26. A system for delivery of a gas to a patient, the system comprising:
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a single tubular nasal cavity component comprising only two terminal ends, including one end for gas inlet and one end for gas outlet with a single gas flow path extending from the gas inlet end to the gas outlet end, the tubular nasal component configured for insertion into a nostril of a patient and adapted to maintain an inserted position, the single tubular nasal cavity component comprising; a first portion having a first longitudinal axis along the single gas flow path, and a single substantially frusto-conical proximal end, the proximal end configured for insertion into a nostril of a patient, the proximal end flaring outward to increasingly wider dimensions as it extends toward the gas outlet end; and a second portion having a second longitudinal axis along the single gas flow path, the second portion having a gas inlet end configured to receive gas from a gas supply, a distal end of the second portion intersecting a distal end of the first portion in a bend portion of the single gas flow path, such that the second longitudinal axis and the first longitudinal axis intersect at an angle of between about 60 and about 80°
;wherein a length of the first portion is about 3 to about 2 times an internal diameter D of the gas outlet end, and a length of the second portion is about 1.7 to about 1.2 times an internal diameter D of the gas outlet end. - View Dependent Claims (27)
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Specification