Optical system for treatment of vascular lesions
Patent 5344418 Issued on September 6, 1994. Estimated Expiration Date: 
December 12, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 12, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3693623 3821510 Control for laser hemangioma treatment system Laser system for providing target specific energy deposition and damage Laser irradiation system for thermotherapy Method and apparatus for treating cutaneous vascular lesions Laser fusion of biological materials Method and apparatus for laser surgery Patent #: 5112328 InventorApplicationNo. 807055 filed on 12/12/1991US Classes:606/9, Dermatological606/13, Applicators607/89Laser applicationExaminersPrimary: Pellegrino, Stephen C.Assistant: Peffley, M. Attorney, Agent or FirmInternational ClassA61N 005/06AbstractAn 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.Field of SearchBeam energy control or monitoringPlaced in body With optical fiber With beam shaping or redirecting (e.g., lens) Dermatological Systems With optical fiber Condition responsive Applicators Heat application Tip or other heat concentration means Tip in electrical circuit Self-contained powersupply With thermal control means Electrical application Electromagnetic wave irradiation Systems Applicators Endoscopic Treating material applied to or removed from external surface of body, or cutaneous layer of skin (e.g., eye treatment, removal of skin impurities, etc.) With tubular injection means inserted into body With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue | |
