Deploying a balloon expandable stent to induce spiral flow
US10492937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A balloon expanded stent delivery system includes an inflation constraint, such as a wire, spirally wound about the longitudinal axis in contact with a balloon and attached to an underlying catheter. A balloon expanded stent is mounted about the balloon and the inflation constraint. The delivery system has a predeployment configuration with the balloon deflated and the stent unexpanded. The system has a deployment configuration in which the inflation constraint constrains the inflated balloon to a spiral shape, the stent is expanded and in contact with the balloon, and the stent has a flow directing surface with a spiral contour that matches the spiral shape of the balloon. In a postdeployment configuration, the stent retains the flow directing surface with the spiral contour.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.