Occlusion bypassing apparatus with varying flexibility and methods for bypassing an occlusion in a blood vessel
US10456557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An occlusion bypassing apparatus is disclosed for re-entering the true lumen of a vessel after subintimally bypassing an occlusion in a vessel. The apparatus includes an outer shaft component, an inner shaft component disposed within the outer shaft component, and a needle component slidably disposed within the inner shaft component. The inner shaft component includes a body portion and a needle housing, which is distal to the body portion. The needle housing is less flexible than the body portion. In order to smooth the transition between the body portion and the needle housing, the needle housing includes a transition portion that has a variable flexibility along its length that decreases in a distal direction. A curved distal end of the needle component is distally advanced relative to the inner shaft component to pierce through the intima of the vessel and thereafter enter the true lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.