Method and device for electro microsurgery in a physiological liquid environment
US6620160B2 · kind B2 · utility
70Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/856
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and device for electrical emulation of pulsed laser is disclosed. The device utilizes high voltage electrical discharges of sub-microsecond duration in a liquid medium to produce cavitation bubbles of sub-millimeter size for use in high speed precision cutting. Such bubbles are produced by a micro-electrode (1.6) having a central wire having a diameter of 1 microns to 100 microns embedded in an insulator. A coaxial electrode (1.9) surrounds the insulator, and may be spaced from the outer surface of insulator to provide a path for removing tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.