Abstract: The invention relates to a method of manufacturing an primary optical array for a vehicle headlight, wherein the primary optical array comprises a first primary optical element with a light entry face, at least one second primary optical element with a light entry face, and a basic part connecting the first primary optical element mechanically to the second primary optical element, wherein a first mold and a second mold are provided, wherein the first mold comprises at least one first web for molding a side face of the first primary optical element facing the second primary optical element, and for molding a side face of the second primary optical element facing the first primary optical element, wherein the at least one first web has a web edge the width of which amounts to no more than 0.25 mm, wherein a gob is placed between the first mold and the second mold, wherein the gob is press-molded or pressed into the primary optical array by the first mold and the second mold moving towards each other.

Abstract: An insufflation system has a medical instrument, which has a channel through which an insufflation gas can be passed from the proximal end to the distal end. A first valve in the instrument can be switched between a first switching state and a second switching state. It is proposed that a pressure sensor be provided which is connected to the channel and which can detect the two switching states of the first valve. A second switch-over valve can be switched by a control unit in accordance with the detected pressure values, such that the instrument can be connected by the second switch-over valve either to a source of insufflation gas or to a source of air. The second switch-over valve is designed such that only air is delivered in the first switching state of the first valve and only insufflation gas is delivered in the second switching state.

Abstract: An insufflation system has a medical instrument, which has a channel through which an insufflation gas can be passed from the proximal end to the distal end. A first valve in the instrument can be switched between a first switching state and a second switching state. It is proposed that a pressure sensor be provided which is connected to the channel and which can detect the two switching states of the first valve. A second switch-over valve can be switched by a control unit in accordance with the detected pressure values, such that the instrument can be connected by the second switch-over valve either to a source of insufflation gas or to a source of air. The second switch-over valve is designed such that only air is delivered in the first switching state of the first valve and only insufflation gas is delivered in the second switching state.