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US 6,454,761 B1Granted
Laser surgery device and method
OwnerPhilip D. Freedmaninventor
Life of this patent
Estimating the term…
Abstract
Laser surgery is controlled by interferometry.
Claims25
A method of treating biological tissue by laser surgery, comprising detecting a limit or location of surface or mass of biological tissue by a process of interferometry and controlling the laser treating of said biological tissue according to the detected limit or location of surface or mass.
A laser surgery device, comprising:
- laser beam irradiator for applying a laser beam to a target region of biological tissue;
- interferometer for projecting a light beam onto said target region of biological tissue, including a detector for receiving a reflected interference beam from said target region, detecting a phase difference of said interference beam and providing an electrical signal according to said phase difference;
- and
- a controller responsive to said electrical signal for controlling an output of applied laser beam from said laser beam irradiator.
1 more element
Dependencies are inferred from the claim text.