Optical system for treatment of vascular lesions

Details Optical system for treatment of vascular lesions Optical system for treatment of vascular lesions

1991-12-12

1994-09-06

Pellegrino, Stephen C.

Surgery

Instruments

Light application

606 13, 607 89, A61N 506

Patent

active

053444183

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.

REFERENCES:
patent: 3693623 (1972-09-01), Harte et al.
patent: 3821510 (1974-06-01), Muncheryan
patent: 4316467 (1982-02-01), Muckerheide
patent: 4733660 (1988-03-01), Itzkan
patent: 5050597 (1991-09-01), Daikuzono
patent: 5057104 (1991-10-01), Chess
patent: 5071417 (1991-12-01), Sinofsky
patent: 5112328 (1992-05-01), Taboada

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