Hollow coil guide wire apparatus for catheters
US5931830A · kind A · utility
154Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1995 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Dec 7, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter guide wire includes a strip of material formed into an elongate coil, with a central hollow having a plurality of windings. The windings include inhibiting features to inhibit relative rotation of adjacent windings. A central wire core is inserted through the hollow of the coil and welded to some of the windings to keep them from separating longitudinally. This construction allows for lateral flexibility of the guide wire, but with desired torsional stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.