Niti-type medical guide wire and method of producing the same
US6508803B1 · kind B1 · utility
355Cited by
2References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 6, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21F9/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A medical guidewire comprised of an NiTi-based alloy having a high elasticity over a wide range of strain, excellent straightness, and preferable shape and characteristics of a stress-strain curve in a tensile test. The wire is obtained by applying a predetermined tension to a cold drawn NiTi-based alloy wire and mechanical straightening it under conditions of a predetermined torsional shear strain and temperature and shows superior pushability, torque transmission, and reinsertability as a medical guidewire, so is preferable for a catheter guidewire, endoscope guidewire, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.