Flexible Bronchoscopy
via these devices often encounter
resistance and ventilation difficulties
secondary to unsuitable airway to
bronchoscope diameter (ABD) ratios
and device buckling, requiring lubricants
(Fig.1A, B) and oral devices to avoid
bronchoscope damage (Fig. 1C)
Supraglottic devices require multiple sizes
to ensure optimal fit and airway seal (Fig 2A).
Occasionally, poor seals require intubations
with ETT.
Interruptions of procedures related
to disconnections of proximal ETT
connectors (during bronchoscope
manipulations) (Fig. 3A).
RB intubation relies on operator’s
competence to avoid airway injury,
requiring adjunct devices and techniques
for protection and optimization of
oxygenation/ventilation (Fig. 4A).
5A. Finite Element Analysis-sagittal
plane of device bent at 90° angle.
5B. Bend test of device in ISO 11712 jig.
6A. Device at 180° accommodating
14mm rigid rod.
6B. Computational Flow Analysis Seal
Test of Inner-luminal O-Ring.
7A. Balloon Seal test with Pressure-
Time graph depicting conserved
inspiratory and expiratory pressures.
7B. Model of preliminary balloon
seal test.