Effective parasitic capacitance minimization for micro ablation electrode
US11207125B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jun 1, 2020 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jun 1, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flexible catheter has an ablation electrode disposed in its distal segment. The ablation electrode a cavity formed in its external surface, a microelectrode configured to fit into the cavity, a conductive wire lead connecting the microelectrode to receiving circuitry, and an electrical shield surrounding the wire lead. A power generator is connected to the ablation electrode and the electrical shield in a generator circuit. A back patch electrode adapted to contact with the subject is connected in the generator circuit. The microelectrodes can be active while energizing the ablation electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.