Patent ID: 8062251
Filing Date: 2011-11-22
Classification: A61F,A61M

Abstract:
1. A catheter for delivering an agent to an area of treatment, the catheter comprising: a catheter body; an inflatable balloon assembly coupled to a distal end of the catheter body, the balloon assembly having at least a proximal balloon element and a distal balloon element spaced apart relative to one another, the balloon assembly defining a treatment chamber bounded by the balloon elements and a biological path wall upon inflation; a first lumen extending along the catheter body to pass an inflation material to the balloon elements to control an inflation level thereof; a second lumen extending along the catheter body and having an outlet in the treatment chamber; and a third lumen extending through the catheter body configured for guidewire passage and to allow a biological fluid to flow through the catheter and around the treatment chamber when the balloon elements are inflated; wherein the first lumen is larger in size than the second lumen and the third lumen; and wherein the catheter further comprises a first marker and a second marker on the catheter body, wherein the first marker and the second marker are positioned at predetermined locations between the proximal balloon element and the distal balloon element to indicate a placement of the catheter relative to the treatment chamber.