Guide wire for catheter
US4925445A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Feb 9, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guide wire for a catheter having a body portion comparatively high in rigidity and a distal end portion comparatively flexible. At least portions of the body portion and the distal end portion are formed of a super-elastic metallic member. At least portions of inner core portions on the body portion's side and on the distal end portion's side, both of which are coated by a plastic, are formed of the super-elastic metallic member, and at least a portion of the inner core portion on the distal end portion's side is made smaller in cross-section than the inner core portion on the body portion's side. In consequence, the catheter can be reliably and readily introduced to a predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.