Institut National De La Sante Et De La Recherche Medicale

Bruno Buys

Yves J Moschetto

Jean-Pierre Sozanski

Serge Mordon

Jean-Marc Brunetaud

Jacques Charlier

Pierre Francois

Jean-Claude Hache

The invention relates to a process of treatment in the field of dermatology, for the treatment of cutaneous angio dysplasias, using the energy emitted by a laser source, as well as to an apparatus for the treatment of skin angiomas implementing the process. The apparatus includes a laser source suitable for supplying laser radiation, a treatment instrument for receiving the laser radiation from the source and whereby a plurality of consecutive laser shots is effected to form a plurality of resulting impacts on the area of the body to be treated. Following each shot, the area of the body thus treated has, at the resulting impact, at least a given relaxation time. The apparatus includes a support frame, an optical fiber disposed in the frame. The optical fiber has two ends, the first of the ends being suitable for connection to the laser source via the connecting means, the second end being mobile and suitable for generating a displaceable laser spot. An automatic control unit with memory controls in time and space sequential scanning of the second end of the optical fiber, and permits a sequence of consecutive laser shots such that two consecutive laser shots form two resulting impacts, which are not contiguous, if the time lapse between the two consecutive laser shots is less than the given thermal relaxation time, and the impacts of the different consecutive laser shots completely cover the surface through the contiguous juxtaposition of the different impacts resulting from the different laser shots.

Process for treatment by irradiating an area of a body, and treatment

This invention relates to a cupola-type visual stimulation ophthalmological pparatus for examining the visual field of a patient and performing electrophysiological examinations. It comprises a projection screen consisting of the inner surface of a hemispherical cupola, the patient's eye being disposed centrally of the cupola during the examination. A device for projecting visual stimuli on the screen is provided in the upper portion of the cupola and comprises essentially a casing incorporating a light source, filter means, an object mask, a lens and a movable reflecting mirror located in the vicinity of the cupola center. This mirror is adapted to project toward any desired point of the screen a luminous stimulus perceived by the patient for measuring the extent of the patient's visual field. Moreover, with the projection device it is possible to illuminate the complete visual field according to criteria relating specifically to electrophysiological examinations. For this purpose, the casing comprises a window adapted to be masked for examining the visual field and to be opened for making electrophysiological examinations, the light rays from the light source being deflected through the window for illuminating the complete screen surface. The various optical control members necessary for performing visual tests can also be used for electrophysiological examinations since the projection device is polyvalent and thus capable of accomplishing both types of examinations.

Cupola-type ophthalmological apparatus the visual field and the

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Lille, France

Bruno Buys