Disclosed is a hybrid virtualization method for an interrupt controller in nested virtualized environment, which can reduce guest interrupt latency. The device comprises a housing having a first end defining a fluid port, an opposite end defining a suction port, and a valve member disposed between the fluid port and the reservoir. The first cathode and the second cathode are configured to operate simultaneously at different voltages. The compression element is collapsed when the distal end of the catheter is enclosed within the introducer. The mirror orienting unit is also arranged to orient the spatial sector on a vertical plane and the optical head can be translated vertically. The diffraction grating includes a set of non-parallel and non-equidistant lines andor the support of diffraction grating is aspherical in order to form an image of the entry port in the exit plane of improved image quality and of very low distortion.