Reduction of catheter electrode loading
US8583215B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Aug 16, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/2051
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for position sensing includes inserting a probe having a first probe-electrode and a second probe-electrode into a body of a subject, and coupling body-surface electrodes to a surface of the body. Currents passing between the first probe-electrode and the body-surface electrodes are measured, using first circuitry coupled to at least the first probe-electrode and having a first electrical ground, and position coordinates of the probe are determined responsively to the measured currents. Second circuitry, having a second electrical ground, is coupled to at least the second probe-electrode, and the first electrical ground is isolated from the second electrical ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.