Balloon catheter with multiple distensibilities
US6004339A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1996 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Nov 13, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A balloon is disclosed that has two differing rates of distensibility. It can be used to perform angioplasty by taking advantage of its high strength and relatively low distensibility up to a predetermined range of pressure and still be used to set a stent by operating a pressure range where there is a higher distensibility. the balloon can be of a single material that is oriented less than fully or a blend of materials similarly oriented. In another embodiment, strands of a more crystalline material run longitudinally through a matrix of a less crystalline material, with the resulting balloon, when not fully biaxially oriented, exhibiting high burst strength and two different rates of distension at different applied inflation pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.