Endoscopic bite block

摘要

According to a preferred embodiment of the present invention there is provided a bite block assembly adapted for capnography and oxygen delivery to a subject, the bite block assembly (50) including a first capnography passageway adapted for passage therethrough of exhaled breath from the subject to a capnograph and a second oxygen delivery passageway, separate from the first passageway, adapted for passage therethrough of oxygen from an oxygen source to the mouth of the subject.

主权项

1. A detachably connectable bite block assembly comprising:
(a) an oral-nasal cannula configured to collect exhaled breath for capnographic monitoring and to deliver oxygen, said oral-nasal cannula comprising:
an oxygen delivery bore in fluid connection with at least one delivery opening and an oxygen supply tube, andan exhaled breath collection bore in fluid connection with an oral prong, at least one nasal prong and a breath collection tube; and (b) a bite block comprising:
a hollow tubular portion configured for insertion into a subject's mouth, said hollow tubular portion configured to engage, on an outer portion thereof, said oxygen supply tube and thereby to detachably connect said bite block with said oral-nasal cannula, such that when said oxygen supply tube is engaged on said hollow tubular portion a valve is configured to open, and when said oxygen supply tube is disassembled from said hollow tubular portion the valve is configured to close; anda main body portion from which said hollow tubular portion extends, said main body portion comprising a longitudinal groove configured to detachably accommodate said oral prong of said oral-nasal cannula, such that oral breath exhaled through said hollow tubular portion is directed towards said groove for collection by said oral prong.