Abstract: A lighting system, preferably for use in operating theatres, in which at least one light source is mounted to be movable an adjustable in a single ceiling and/or wall element in the form of a prefabricated module element (4). The light sources in each module element may be controlled singly or in clusters by means of a control device designed to direct the source or sources to focus at a point defined by an optical, ultrasound or magnetic, radio frequency pointer that is seen by an appropriate sensor/camera system or receiver in the room, and which, via control means, moves the light source to the desired position. The light source consists of light-emitting diodes, halogen bulbs or the end of one or several fiber-optical cables, fixed ion a holder shaped as one half of a cup or a sphere, the holder being arranges to be movable about two perpendicular axes in the xy-plane (the ceiling plane) of the ceiling module (4).

Abstract: A lighting system, preferably for use in operating theatres, in which at least one light source is mounted to be movable an adjustable in a single ceiling and/or wall element in the form of a prefabricated module element (4). The light sources in each module element may be controlled singly or in clusters by means of a control device designed to direct the source or sources to focus at a point defined by an optical, ultrasound or magnetic, radio frequency pointer that is seen by an appropriate sensor/camera system or receiver in the room, and which, via control means, moves the light source to the desired position. The light source consists of light-emitting diodes, halogen bulbs or the end of one or several fibre-optical cables, fixed ion a holder shaped as one half of a cup or a sphere, the holder being arranges to be movable about two perpendicular axes in the xy-plane (the ceiling plane) of the ceiling module (4).

Abstract: A filtering device and method of preventing embolism and/or the distension of blood vessel walls is provided. The device can be easily put in place and can also be removed from the patient. The device comprises a spring-like active part and a rectilinear actuator. The actuator is used to prolongate or activate the active part. The active part has a shape memory corresponding to the shape of a spiral or a semi-circle. The active part can be straightened and will regain its shape memory position upon installation in the patient's vein. The filter can be used on blood vessels of various sizes because the user can vary the amount of the active part regains its original configuration in the vein. The filter can be secured into place and has the advantage of being removable when no longer needed.