Intravascular guidewire
US5836893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 8, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intravascular guidewire providing enhanced steerability and radioscopic visibility. The guidewire has an elongated selectively formable core and a plastic jacket including proximal and distal jacket portions, where the distal jacket portion is further divided into a proximal jacket section and a distal jacket section. The distal jacket portion incorporates means for enhancing the radiopaque properties of the distal jacket portion relative to the proximal jacket portion. The distal jacket section has a different radiopacity than the proximal jacket section, making the distal jacket section more easily viewable under radioscopy. One embodiment provides enhanced steerability with a distal jacket section made of softer material than the proximal jacket section. Another embodiment provides enhanced steerability with a distal jacket cross-section smaller than the proximal jacket cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.