Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1993-06-16
1995-04-11
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820525, 12820329, 128912, 128DIG26, 12820513, A61M 1600, A62B 700, A62B 1802
Patent
active
054048737
ABSTRACT:
A breathing circuit is provided for conveying an inspiratory gas from a gas dispensing apparatus to a patient, and for conveying an expiratory gas from the patient. The circuit includes a corrugated expiratory tube having a first end and a second end. The expiratory tube has a relaxed length. A corrugated inspiratory tube is provided which is disposed generally colinearly and interiorly of the expiratory tube. The inspiratory tube has a first end disposed adjacent to the first end of the expiratory tube, a second end disposed adjacent to the second end of the expiratory tube, and a relaxed length greater than the relaxed length of the expiratory tube such that the inspiratory tube normally exerts a longitudinally directed pressure on the circuit. A first end coupling member is fixedly coupled to both the inspiratory tube and the expiratory tube. The first end coupling member is generally transparent and hollow, and has an interior and an exterior. The first end coupling member is generally more rigid than the expiratory tube. A second end coupling member is fixedly attachable to the second end of the expiratory tube. The second end coupling member includes a positioning member receiving portion. A positioning member for positioning the second end of the inspiratory tube relative to the positioning end receiving portion of the second end coupling member is also provided.
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Burrow Kevin D.
Leagre Michael A.
Asher Kimberly L.
King System Corporation Division of Barco Molding, Inc.
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