Nasal interface and system including ventilation insert
First Claim
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1. A ventilation interface, comprising:
- a cannula with at least one nasal insert and at least one exhaust port;
the cannula forming a first portion of an input gas flow passage to supply the ventilation gas to the user, the first portion of the input gas flow passage defined by a first passage disposed at a first distal end of the cannula where the cannula is connected to a first source of ventilation gas and a second passage disposed at a second distal end of the cannula where the cannula is connected to a second source of ventilation gas;
the at least one nasal insert forming second and third portions of the input gas flow passage from the cannula to a distal end of the nasal insert that are substantially axially aligned with the first passage disposed at the first distal end of the cannula where the cannula is connected to a first source of ventilation gas and the second passage disposed at the second distal end of the cannula where the cannula is connected to the second source of ventilation gas; and
a seal portion adapted to engage at least a portion of the nares, the seal portion being provided on the distal end of the at least one nasal insert.
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Abstract
A ventilation or CPAP interface system adapted to be inserted into a nares of a user to secure the interface. A cannula adapted to be connected to a source of ventilation gas forms a first portion of an input gas flow passage to supply the ventilation gas to the user. A nasal insert adapted to be inserted the nares of the user forms a second portion of the input gas flow passage from the cannula to a distal end of the nasal insert. A seal portion adapted to engage a portion of the first naris is provided adjacent the distal end of the nasal insert. Ventilation interface system may optionally include feed tubes, y-connector, tube holder, and headgear.
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Citations
28 Claims
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1. A ventilation interface, comprising:
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a cannula with at least one nasal insert and at least one exhaust port;
the cannula forming a first portion of an input gas flow passage to supply the ventilation gas to the user, the first portion of the input gas flow passage defined by a first passage disposed at a first distal end of the cannula where the cannula is connected to a first source of ventilation gas and a second passage disposed at a second distal end of the cannula where the cannula is connected to a second source of ventilation gas;the at least one nasal insert forming second and third portions of the input gas flow passage from the cannula to a distal end of the nasal insert that are substantially axially aligned with the first passage disposed at the first distal end of the cannula where the cannula is connected to a first source of ventilation gas and the second passage disposed at the second distal end of the cannula where the cannula is connected to the second source of ventilation gas; and a seal portion adapted to engage at least a portion of the nares, the seal portion being provided on the distal end of the at least one nasal insert. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A ventilation interface, comprising:
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means for forming a first input gas flow portion having input gas flow passages disposed at a first and a second distal end of the first input gas flow portion where the first input gas flow portion connects to a source of ventilation gas, the input gas flow passages being substantially axially aligned with a second portion of the input gas flow passage; means for forming a second portion of the input gas flow passage from the means for forming the first portion to a first naris of the nares of the user; and means for engaging a portion of the nares provided on the means for forming a second portion of the input gas flow passage.
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28. A ventilation or CPAP interface system, comprising:
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a cannula, nasal inserts, seal portions and exhaust ports; a first feed tube, a second feed tube and a Y-connector; a tubing connector; head gear; the cannula is adapted to be connected to the first feed tube, second feed tube and Y-connector, the cannula forming a first portion of an input gas flow passage, the first portion of the input gas flow passage defined by a first passage that connects to the first feed tube and a second passage that connects to a second feed tube; the first passage and the second passage of the input gas flow passage being substantially axially aligned with the nasal inserts; the nasal inserts form a second portion of the input gas flow passage from the cannula to a distal end of the nasal inserts; and a seal portion adapted to engage at least a portion of the nares, the seal portion provided adjacent a distal end of the nasal insert.
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Specification