Agent delivery catheter having a radially expandable centering support members
US8075519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for delivering an agent to an injection site in a wall of a patient's body lumen, with an elongated shaft having a needle-through lumen slidably containing a needle therein, and an expandable member on the distal shaft section which has a collapsed configuration and a radially expanded configuration. In the radially expanded configuration, the expandable member supports the shaft in a position spaced away from the body lumen wall, and the needle slidably exits the needle-through lumen in the extended configuration through the port spaced away from the body lumen wall as a portion of the expandable member maintains the position of the port section of the shaft in the body lumen. The expandable member typically has an open-walled, helical, or lobed configuration providing a perfusion path along the expandable member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.