Patents

Patent Number: 5,344,418
Date Of Patent: September 6, 1994
OPTICAL SYSTEM FOR THE TREATMENT OF VASCULAR LESIONS
Inventor: Shahriar Ghaffari
Appl. No. 807,055
Filed: December 12, 1991

ABSTRACT: An improved optical system for treatment of disorders of the skin, especially vascular lesions, such as PortWine Stains. The system irradiates the skin with radiation at a predetermined wavelength and cools the skin during a predetermined time interval in coordination with delivery of the radiation. The absorption of the radiation by the skin and the change in temperature of the skin is monitored by the system and the operation of the radiation delivery system is controlled to optimize treatment of the vascular lesion. The source of irradiation is an arc lamp and the cooling system delivers a cooling gas to a lens in contact with the skin. The cooling gas can be Carbon Dioxide, freon, or any other appropriate gas. The lens used has a high heat conductivity and may be formed of sapphire.

Patent Number: 5,769,844
Date Of Patent: June 23, 1998
CONVENTIONAL LIGHT-PUMPED HIGH POWER SYSTEM FOR MEDICAL APPLICATIONS
Inventor: Shahriar Ghaffari
Appl. No. 480,537
Filed: June 7, 1995

ABSTRACT: An optical system which utilizes a conventional light source to produce a narrowly focused beam of radiation having intensity similar to that produced by a laser. The system broadly includes an omnidirectional light source and an elliptical reflector, wherein the physical parameters of the light source and the reflector are matched to produce a narrowly focused beam of intense radiation. The light produced by the system is coupled into a fiber optic system for delivery to the target area. In one embodiment, a mirrored surface having an aperture therein is placed at a point near the second focal point of the reflector. the aperture is positioned such that only rays meeting predetermined geometrical exit criteria can passthrough the aperture and be accepted by the fiber optic located at the second focal point. Those rays which do not meet the exit criteria are reflected by the mirrored surface toward the interior of the cavity. Some of the reflected rays provide additional amplification of the light produced by the light source and the course of these rays is altered such that they are eventually able to meet the exit criteria and pass through the aperture.

Food and Drug Administration approved:

K990417
Trade Name: DermaCool System and Handpiece
Regulatory Class: II
Product Code: GEX
Dated: Febuary 3, 1999