Diffusion catheter systems for delivery of fluid-based therapies

Abstract

Embodiments herein relate to devices for delivering fluid-based therapies into a target vessel of a patient. In an embodiment, an apparatus is included having a microcatheter. The microcatheter can include a catheter shaft having a lumen therein. The microcatheter can have an open end that is at a distal end of the catheter shaft. The microcatheter can have a plurality of side apertures disposed within a side wall of the catheter shaft. The plurality of side apertures allow for a fluid to pass from the lumen to the outside of the catheter shaft. The apparatus further includes a seal element configured to pass through the lumen of the microcatheter. The seal element can include a shaft and an occlusion member configured to at least partially occlude the open end of the microcatheter directing fluid flow through the plurality of side apertures. Other embodiments are also included herein.

Dependencies are inferred from the claim text.