System and method for determining electrode-tissue contact based on amplitude modulation of sensed signal
US8160690B2 · kind B2 · utility
297Cited by
15References
23Claims
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Key dates
| Filing date | Jun 14, 2007 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems for monitoring contact between a medical probe and tissue are provided. A medical probe is introduced into a patient adjacent the tissue. An electrical parameter, e.g., electrical admittance, is measured between a first electrode located on the medical probe and a second electrode remote from the first electrode. The electrical parameter is amplitude modulated in response to a physiological cycle of the patient. Contact between the medical probe and the tissue is detected based on the amplitude modulation of the measured electrical parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.