Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis
US4931047A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/014
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus having a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip. A connection to an electrosurgical unit provides for delivery of RF cutting current, RF coagulating current or a blend thereof to the tip so that electrosurgical procedures can be conducted separately or simultaneously with ultrasonic aspiration through the tip. It thus is now possible, for example, to electrocauterize simultaneously with ultrasonic fragmentation with a single handheld surgical device. The simultaneous delivery of ultrasonic vibrations and RF current to the tip also has been found to increase the tissue fragmentation rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.