Adjustable balloon catheter for extravasated drug delivery
US9180281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Mar 5, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/109
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adjustable balloon catheter for extravasated drug delivery is disclosed generally including an outer catheter with a first balloon and an inner catheter with a second balloon. The inner catheter is moveably disposed in a lumen of the outer catheter such that the inner catheter moves relative to the outer catheter, changing the distance between the balloons. A fluid source supplies air to the catheters via lumens therein to inflate the balloons to create a chamber between them, and at least one of the catheters has a lumen for delivering a therapeutic and/or diagnostic agent to the chamber. The inner catheter is then moved relative to the outer catheter to decrease the size of the chamber between the balloons and decrease the fluid pressure therein such that the therapeutic and/or diagnostic agent is extravasated into the surrounding tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.