Abstract: This invention is a device (500) for sealing a hole in a blood vessel, comprising a ring (504); a plurality of spikes (506) extending from said ring towards a center of said ring, and to first direction along an axis of said ring, said spikes being adapted for engaging a blood vessel; a plurality of tabs (502) extending substantially radially from said ring, wherein rotating said tabs around said ring distorts said ring such that said spikes are rotated in a same direction as said tabs.

Abstract: Various camera arrangements are disclosed comprising a camera and an optical element. The camera is configured to record an image defined by light rays directed thereto. The optical element is configured to deflect rays from a scene to the camera for recording thereby. The optical element is further configured to deflect the rays such that, if the rays were undeflected, the rays would instead be tangent to a viewing device of predetermined shape, such as a circle. Optical elements may be in the form of curved mirrors or lenses. The camera arrangements are configured to record images in the form of left or right panoramic images of a stereo panoramic image pair, and several stereo panoramic camera arrangements are described, including one or more camera arrangements, for contemporaneously recording both left or right panoramic images of a stereo panoramic image pair.

Abstract: The invention concerns a dental water pulse operating on a running water pipe system as it can be connected to a running water faucet spout (3) and an anti-splash aerator.

Abstract: An optoelectronic shutter for radiation, comprising an input plate and an output plate, comprising material substantially transparent to the radiation, each plate having an outer and an inner surface, wherein a recess is formed in the inner surface of at least one of the plates, and wherein respective non-recessed portions of the inner surfaces of the plates are bonded together, and the recess defines a vacuum chamber enclosed by the two plates; a photocathode fixed to the inner surface of the input plate, adjacent the chamber, and a photo-emissive anode, fixed to the inner surface of the output plate, adjacent the chamber and opposite the photocathode.