Catheter including a foam generation assembly

Abstract

A catheter includes a catheter shaft extending from a proximal catheter end to a distal catheter end. A plurality of lumens are housed with the catheter shaft and each configured to separately convey respective substances, such as a drug/therapy solution in a first lumen and a gas in a second lumen, from a proximal lumen end disposed adjacent the proximal catheter end to a distal lumen end. A foam generation assembly extends from an entrance end fluidly connected to the distal lumen ends for receiving the respective substances to an exit end disposed adjacent or in spaced relationship with the distal catheter end of the catheter shaft. The foam generation assembly includes a plurality of shearing structures arranged between the entrance and exit ends for mixing the respective substances as they are conveyed through the foam generation assembly to generate a foam at the exit end.

Dependencies are inferred from the claim text.