Guide wire
US7922673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09108
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guide wire includes a first wire disposed on the distal side of the guide wire and a second wire disposed on the proximal side from the first wire. The first wire and the second wire are joined to each other by welding. A welded portion formed by welding has a projection projecting in the outer peripheral direction. The height of the projection may be in a range of 0.001 to 0.3 mm. The first wire may be made from a superelastic alloy, and the second wire be made from a stainless steel. The first wire and the second wire are welded to each other by a butt resistance welding process. Such a guide wire has a high joining strength between the first wire and the second wire, to thereby improve the operationality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.