Scaling of electrical impedance-based navigation space using inter-electrode spacing
US10082395B2 · kind B2 · utility
23Cited by
8References
19Claims
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Key dates
| Filing date | Oct 3, 2012 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/2053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An algorithm to correct and/or scale an electrical current-based coordinate system can include the determination of one or more global transformation or interpolation functions and/or one or more local transformation functions. The global and local transformation functions can be determined by calculating a global metric tensor and a number of local metric tensors. The metric tensors can be calculated based on pre-determined and measured distances between closely-spaced sensors on a catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.