Guidewire for precision catheter positioning
US6406442B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1999 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Apr 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/09083
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention comprises a guidewire having a compressible guide section capable of deflecting a catheter to abut a lumen wall. The compressible guide section exerts an outward radial force while it is at least partially compressed within a lumen. The guide section permits a physician to precisely locate a catheter within a body lumen and adjust a catheter tip orientation to be directed to a particular side of a body lumen. A method is disclosed for properly matching a guidewire and a catheter to operate together in the present invention, along with a force measuring instrument to assist in measuring a catheter's resistance force value. This method and systems of the present invention involve determining the exact force relationship between the compressible guide section and the resistance of the catheter in vitro.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.