Patent ID: 6159158
Filing Date: 2000-12-12
Classification: A61B,A61M

Abstract:
A catheter for insertion into the airway of a patient for locating an obstruction and comprising:a) walls forming a plurality of elongated lumens extending in parallel relation from a respective proximal end to a respective distal end of each lumen;b) an elongated tubular outer wall encasing said walls forming said lumen;c) a plurality of perforate regions spaced along said outer wall, each perforate region having a plurality of perforations formed through said outer wall; andd) each lumen having gas pressure communicated thereto at an aperture at a selected location therealong through said perforations at a respective one of said perforate regions for measurement in such a manner that indications of substantially instantaneous gas pressures existing respectively at said perforate regions are obtained and provide a determination of a location of an obstruction in said airway.