System and method for detecting sheathing and unsheathing of localization elements
US10188314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Nov 3, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0266
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of detecting a localization element/sheath state change with a localization system includes establishing a localization field using a plurality of localization field generators, obtaining first and second localization signals from first and second catheter-borne localization elements within the localization field, respectively, comparing the quadrature components of the first and second localization signals, and detecting a localization element/sheath state change for one of the catheter-borne localization elements based on the comparison between quadrature components. For example, withdrawal of a localization element into an introducer sheath can be detected when the comparison between quadrature components exceeds a preset amount. Conversely, re-emergence of the localization element from the introducer sheath can be detected when the comparison between quadrature components returns below the preset amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.