Catheter having enhanced distal pushability
US6960188B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Nov 30, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/1006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for enhancing pushability and minimizing kinking of a balloon catheter is provided, wherein a catheter comprises inner and outer tubes, and a balloon that is proximally affixed to the outer tube and distally affixed to the inner tube. The outer tube extends distal to the proximal affixation point and at least partially into the balloon segment to provide additional stiffness and pushability. The outer tube may taper and connect to the inner tube or to radiopaque markers disposed thereon. The outer tube further may be selectively reinforced, as by using multipart construction or using different tube textures, to selectively provide added stiffness in areas susceptible to kinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.