Method and a device for cold laser microsurgery with highly localized tissue removal
US5288288A · kind A · utility
Inventors
Key dates
| Filing date | Oct 22, 1991 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Oct 22, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00863
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for highly localized treatment of biological tissue by a laser includes a micropipette having a tip with a central opening having a diameter of less than about 10 microns. The micropipette is mounted on an articulated arm for precision motion with respect to tissue to be treated. Gas is supplied to the micropipette to prevent the entry of liquid, and laser light supplied through the articulated arm is directed into the pipette. The pipette is positioned in X, Y and Z directions with respect to the tissue to control the location and depth of treatment. A protective window may be positioned at the tip of the micropipette to prevent the entry of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.