Field concentrating antennas for magnetic position sensors
US10898104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2016 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Oct 31, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0223
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device is configured for diagnosis or treatment of a tissue within a body. The medical device comprises an elongate member and a position sensor. The elongate member is configured to be received within the body, and has a lumen extending between a proximal end and a distal end. The position sensor is disposed within the lumen proximate the distal end of the deformable member. The position sensor comprises a coil wound to form a central passage and configured to generate a current flow when subject to a magnetic field, and a high-permeability antenna having at least a portion disposed outside the central passage to concentrate the magnetic field into the coil and increase the current flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.