Abrading balloon catheter for extravasated drug delivery
US8597239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of extravasated drug delivery is disclosed, including inserting a catheter with a first balloon, a second balloon, and a third balloon positioned between the first and second balloons and having a wall with an abrasive outer surface, into a bodily cavity, inflating the first and second balloons to create a chamber therebetween, stimulating a flow of blood cells by inflating the third balloon until the abrasive outer surface abrades tissue, and delivering the agent to the chamber. A balloon catheter system is also provided including a balloon having a wall with an abrasive outer surface for abrading tissue, a catheter having a first lumen for supplying fluid to the balloon to inflate the balloon such that the abrasive surface stimulates a flow of blood cells, and a second lumen for supplying an agent to tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.