Variable length catheter for drug delivery
US9028442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Dec 17, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for localized delivery of a therapeutic or diagnostic agent within a vessel is provided. The method provides for adjustability of the length of the treatment area and for reducing of pressure within the treatment area. A catheter system includes an inner elongated element, an outer elongated element positioned coaxially with respect to the inner elongated element, and a blood-release element at a distal end of the inner elongated element. A proximal occlusion element is positioned at the distal end of the outer elongated element, proximal to an outlet port. A distal occlusion element is positioned at a distal end of the inner elongated element. The distal end of the inner elongated element is distal to and movable with respect to the outer elongated element distal end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.