초록 ▼

An apparatus for insufflating a treating gas into a patient and for measuring a carbon dioxide content exhaled by the patient includes a hollow body with a partitioning wall separating the body into inhalation and exhalation manifolds. Two hollow prongs have coaxial openings close to the body which

An apparatus for insufflating a treating gas into a patient and for measuring a carbon dioxide content exhaled by the patient includes a hollow body with a partitioning wall separating the body into inhalation and exhalation manifolds. Two hollow prongs have coaxial openings close to the body which allow gas exchange for breathing and carbon dioxide measuring purposes. The holes are of a size such that suction drawn through the holes is limited while still allowing accurate gas analysis.

대표청구항 ▼

1. An apparatus for insufflating a treating gas into a nostril of a patient and for measuring a carbon dioxide content exhaled from a nostril of the patient, the apparatus comprising:an elongated hollow body including a tubular portion for positioning adjacent a nose of the patient; a partitioning w

1. An apparatus for insufflating a treating gas into a nostril of a patient and for measuring a carbon dioxide content exhaled from a nostril of the patient, the apparatus comprising:an elongated hollow body including a tubular portion for positioning adjacent a nose of the patient; a partitioning wall located within the hollow body and separating the hollow body into an inhalation manifold and an exhalation manifold, the partitioning wall providing a gas-tight seal positively preventing fluid communication between the inhalation manifold and the exhalation manifold, and the inhalation manifold having a single gas entrance and the exhalation manifold having a single gas exit; a first hollow prong having a fixed length, a first free end of the first hollow prong being opened and sized to be received with a first nasal passage of the nose for insufflating the treating gas into the nose of the patient and a second end of the first hollow prong being connected to the inhalation manifold to provide fluid communication with the single gas entrance of the inhalation manifold; a wall of the inhalation manifold only having the single gas entrance and an opening for the attachment to the first prong and being devoid of any other openings therein; gas supply means for connection to the single gas entrance of the inhalation manifold to supply the treating gas to the inhalation manifold and the first prong; a second hollow prong having a fixed length, a first free end of the second hollow prong being opened and sized to be received with a second nasal passage of the nose for receiving gases exhaled from the nose of the, patient and a second end of the second hollow prong being connected to the exhalation manifold to provided fluid communication with the single gas exit of the exhalation manifold; a pair of coaxial opposed openings provided in the second prong, and the pair of coaxial opposed openings communicate with the hollow interior of the second prong and the exhalation manifold; each opening having a diameter of between about 0.05 to 0.07 inches; and exhaled gas means for coupling to the exhalation manifold and withdrawing a gas sample exhaled from the patient via the exhalation manifold and the second prong, and carbon dioxide concentration means for coupling to the exhaled gas means and measuring a concentration of carbon dioxide in the withdrawn gas sample.