System for determining the position and orientation of a catheter
US7197354B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jun 14, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Electromagnetic field detector located within a catheter, for determining the position and orientation of the catheter according to an electromagnetic field generated in the vicinity of the catheter, the electromagnetic field detector including a ferromagnetic core having a perforation and at least one winding wound around the ferrous core, the perforation providing communication between a first side of the ferrous core and a second side of the ferrous core, the first side facing a proximal side of the catheter and the second side facing a distal side of the catheter, the winding producing a current according to the electromagnetic field, wherein the ferrous core increases the sensitivity of the electromagnetic field detector to the electromagnetic field, by increasing a proportionality factor between the current and the electromagnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.