Catheters with improved transition
US6702802B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a balloon catheter, such as a dilatation catheter and a stent delivery catheter with improved stiffness transition and specifically with no sudden changes in stiffness along the catheter length. The balloon catheters of the present invention may be used alone or be mounted with a stent in. The balloon catheters of the present invention may be used in peripheral, coronary, or neurovascular applications. The present catheter has more than one portion with different bending stiffness values, each portion comprising of components that gradually transition the bending stiffness of that portion to an adjacent portion, thus reducing the differential in bending stiffness in moving from one region to another, when the catheter is used alone or in combination with a stent in a stent delivery system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.