Electromagnetic distortion detection and compensation
US11324558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2020 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Sep 1, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G13/101
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for electromagnetic (EM) distortion detection and compensation are disclosed. In one aspect, the system includes an instrument, the system configured to: determine a reference position of the distal end of the instrument at a first time based on EM location data, determine that the distal end of the instrument at a second time is static, and determine that the EM location data at the second time is indicative of a position of the distal end of the instrument having changed from the reference position by greater than a threshold distance. The system is further configured to: determine a current offset based on the distance between the position at the second time and the reference position at the first time, and determine a compensated position of the distal end of the instrument based on the EM location data and the current offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.