Fluoroscopically viewable guidewire for catheters
US5253653A · kind A · utility
131Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09175
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guidewire assembly for measuring the size of occlusions in blood vessels which includes a guidewire having a flexible, distal end disposable in a blood vessel. The guidewire has a core wire disposed within it which extends to the distal tip. A linear array of radiopaque markers is disposed adjacent the distal tip of the core wire. The markers are spaced from each other at predetermined distances, whereby to enable the user to accurately measure the size and diameter of occlusions in blood vessels using radiological techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.