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US 5,658,323 AGranted
Method and apparatus for dermatology treatment
OwnerIain D. Millerinventor
Life of this patent
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Abstract
A laser treatment method is provided which removes vascular and pigmented lesions from the skin of a living human. The methodology involves a carefully designed treatment protocol utilizing a modified optical apparatus. The apparatus is a modified diode laser system, designed for optimal therapeutic selectivity.
Claims11
A laser treatment method for the removal of unwanted leg veins and other vascular and pigmented lesions from the skin of a human, said method comprising the steps of
- irradiating on a first occasion a chosen treatment site with pulsed coherent light with wavelength in the range 700-1000 nm, said irradiating light having an exposure spot size from 0.5 to 1.0 mm at the treatment site and having a power level of 20-60 Watts and a pulse duration of 30-99 milliseconds, said pulse duration being selected for partial conduction in the surrounding dermis, said treatment site containing vessels with diameter in the range 0.1-1.0 mm.
- allowing the skin to heal typically for a time period of 2-16 weeks, and
- irradiating on 0-5 subsequent occasions each vessel so previously treated with pulsed coherent light with a wavelength in the range 700-1000 nm, said light having a power level of 20-60 Watts and a pulse duration of 30-99 milliseconds.
A therapeutic treatment device for removal of unwanted leg veins and other vascular and pigmented lesions from the skin of a human, said device comprising
- a laser head containing power source, laser source, controls, and cooling electronics,
- an optical fiber connector and light guide optically coupled to the laser head for receiving light produced by the laser head,
- a dermatology handpiece and distance gauge for distance control of tissue contact, connected to the optical fiber, and
- control circuitry electronically connected to said laser head and controlling the generation of pulsewidths in the range 1-99 milliseconds, for effecting said removal of lesions.
1 more element
Dependencies are inferred from the claim text.