Intravascular balloon catheter for embolic coil delivery
US6527790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Improved intravascular balloon catheters for the delivery of embolic agents and devices such as coils to wide-neck aneurysms. In one embodiment, the present invention provides a balloon catheter having a combined guide wire/delivery lumen and a lateral delivery hole. The balloon may comprise a multi-lobed design with the delivery hole disposed between adjacent balloon lobes. The balloon catheter preferably includes a diversion member disposed in the combined lumen to cause the embolic device to divert from the combined lumen, through the delivery hole, and into the wide-neck aneurysm. In another embodiment, the present invention provides a balloon catheter having a shaft including a shaft tube and a co-extending embolic delivery tube. The delivery tube terminates proximal of the distal end of the shaft tube for added flexibility, and the balloon may inflate eccentrically to push the distal opening of the delivery lumen adjacent the opening of the wide-neck aneurysm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.