Adjustable nasal cannula
First Claim
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1. A nasal cannula for delivering gas to a patient, comprising:
- a pair of lengths of substantially continuous, constant diameter flexible tubes having opposite ends and means on one of their ends for connection to a supply of gas;
the other ends of the tubes terminating adjacent to one another and being normally curved at an angle relative to the lengths of tubes to define a pair of form-retaining narine tubes for insertion into the nares of a patient; and
a formable bridge means comprising a length of shape-retaining wire-like material secured to said tubes at said other ends in spanning relationship thereto for holding the narine tubes in predetermined solid angular and spaced relationship relative to one another, said formable bridge means being easily formed to change the angular and spaced relationship between the narine tubes.
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Accused Products
Abstract
A nasal cannula is disclosed which may be easily and quickly adjusted to custom fit individual wearers. The nasal cannula comprises lengths of tubing with the ends formed to provide narine tubes which project into the nares of the wearer, and does not have any cavity-forming structure which might promote growth of bacteria or result in resonant flow noises. The formed ends of the tubing are secured to a formable bridge or saddle which spans the distance between the narine tubes, whereby the angular position as well as the spacing between the narine tubes may be quickly and easily adjusted by suitably forming the bridge.
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Citations
9 Claims
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1. A nasal cannula for delivering gas to a patient, comprising:
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a pair of lengths of substantially continuous, constant diameter flexible tubes having opposite ends and means on one of their ends for connection to a supply of gas; the other ends of the tubes terminating adjacent to one another and being normally curved at an angle relative to the lengths of tubes to define a pair of form-retaining narine tubes for insertion into the nares of a patient; and a formable bridge means comprising a length of shape-retaining wire-like material secured to said tubes at said other ends in spanning relationship thereto for holding the narine tubes in predetermined solid angular and spaced relationship relative to one another, said formable bridge means being easily formed to change the angular and spaced relationship between the narine tubes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification