Oxygen Port Nasal Cannula

摘要

A device for use in delivering oxygen to a human patient while measuring carbon dioxide exhaled from that patient, comprises: (a) a base member having an oxygen delivery inlet port and a carbon dioxide detection outlet port formed therein separate from the oxygen delivery port; (b) a flexible cannula extending from the base, the cannula having a proximal end portion, an intermediate portion, a distal end portion, a first lumen formed therein, and a second lumen separate from the first lumen formed therein, with the distal end portion connected to the base member, the first lumen in fluid communication with the oxygen delivery inlet port, and the second lumen in fluid communication with the carbon dioxide detection outlet port.

主权项

1. A device for use in delivering oxygen to a human patient while measuring carbon dioxide exhaled from that patient, comprising:
(a) a base member having an oxygen delivery inlet port and a carbon dioxide detection outlet port formed therein separate from said oxygen delivery port; (b) a flexible cannula extending from said base, said cannula having a proximal end portion, an intermediate portion, a distal end portion, a first lumen formed therein, and a second lumen separate from said first lumen formed therein, with said distal end portion connected to said base member, said first lumen in fluid communication with said oxygen delivery inlet port, and said second lumen in fluid communication with said carbon dioxide detection outlet port; with said proximal end portion having a blunt configuration to facilitate non-traumatic insertion through a nostril and nasal vestibule into the nasopharynx of a patient, and having at least one oxygen delivery outlet port in fluid communication with said first lumen; said intermediate portion having at least one carbon dioxide detection inlet port formed therein in fluid communication with said second lumen; and said cannula so dimensioned that said proximal tip portion is insertable through a nostril and nasal vestibule and into the nasopharynx of a patient, with said at least one carbon dioxide detection inlet port positioned in the nasal vestibule of the patient and said base member positioned outside the patient when said at least one oxygen delivery outlet port is positioned in the nasopharynx of that patient.