Treatment apparatus and methods for delivering energy at multiple selectable depths in tissue
US8702691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2006 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1467
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Treatment apparatus and methods for delivering energy at multiple selectable tissue depths as selected by a clinician. The treatment apparatus includes at least two electrodes that are electrically isolated from each other, which permits each electrode to be independently energized for selecting different treatment depths. The electrodes may be concurrently energized with high frequency energy of the same polarity in a monopolar mode to deliver energy at a relatively deep depth into a patient's tissue, or with high frequency energy of a different polarity in a bipolar mode to provide a shallower penetration depth. Alternatively, the depth of energy delivery may be modified by energizing less than all of the electrodes. The electrodes may be energized with high frequency energy of different phase relationships to deliver energy concurrently in both monopolar and bipolar modes with the phase difference determining a depth of energy delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.