Diagnostic catheter system for nasopharyngeal obstructions

Details Diagnostic catheter system for nasopharyngeal obstructions Diagnostic catheter system for nasopharyngeal obstructions

1999-07-06

2000-12-12

O'Connor, Cary

Surgery

Diagnostic testing

Respiratory

604 50, A61B 508

Patent

active

061591580

ABSTRACT:
An apparatus and method for identifying and marking regions of tissue obstruction in the upper airway of a patient. The invention provides a greatly improved method for use during a sleep apnea study to particularize the location of a region of obstruction. The precise location of the obstruction may be marked for surgical removal or reduction. Broadly speaking, the apparatus includes a multiluminate catheter having an outer wall circumscribed by multiple discrete perforate regions. The proximal portion of each lumen opens into a selected perforate region and the distal portion is coupled with a pressure transducer. Each lumen is equipped with a syringe port for injecting a tissue marking dye into the obstructing tissue region. The catheter outer wall may include a radiopaque marker in order to facilitate location of the catheter within the airway of a patient.

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