Abstract: A system including a set of at least three horizontal tread surfaces, and a drive system for displacing the tread surfaces vertically to form a set of stairs with a range of different rise heights. One end of a ramp is hingedly connected to the last tread surface so as to define a walking surface having a variable angle of inclination varying as a function of a vertical position of the last tread surface. The tread surfaces can assume a fully-lowered state in which the set of tread surfaces are juxtaposed as a continuous flat surface, and in which a support configuration supports the second end of the ramp so that, in the fully-lowered state, the walking surface of the ramp is horizontal, so that the tread surfaces and the walking surface together forming a continuous horizontal walkway.

Abstract: A computer-aided physiotherapeutic stair & gait system has a set of at least three horizontal tread surfaces and an associated drive system for adjusting a rise height between adjacent of the tread surfaces to form a set of stairs with uniform pitch for a range of different rise heights. A sensor set measures parameters related to physiotherapy performed using the set of stairs and provides an output to a computer system. The sensors include one or more of: a rise height sensor for sensing the pitch of the stairs, a heart rate sensor, a handrail grip position sensor, and load cells for analyzing the distribution of the weight of a patient during use of the system.

Abstract: A computer-aided physiotherapeutic stair & gait system has a set of at least three horizontal tread surfaces and an associated drive system for adjusting a rise height between adjacent of the tread surfaces to form a set of stairs with uniform pitch for a range of different rise heights. A sensor set measures parameters related to physiotherapy performed using the set of stairs and provides an output to a computer system. The sensors include one or more of: a rise height sensor for sensing the pitch of the stairs, a heart rate sensor, a handrail grip position sensor, and load cells for analyzing the distribution of the weight of a patient during use of the system.

Abstract: A physiotherapeutic device for ascent and decent of stairs to be used by professional physiotherapists, and a preferred embodiment to be used at home, in order to rehabilitate patients or maintain health and physical fitness, the device also being useful as a safe ladder for the elderly and those who suffer from physical handicaps, including a plurality of substantially longitudinal step members arranged adjacent to each other, a body pivotally attached to each of the step members and an elevator coupled to the axis. Additionally, the device may be used as an elevator or stair lift assisting handicapped and wheelchair ridden individuals to ascend or descend to or from one level to another. Alternatively, the device may be used to raise or lower heavy or bulky items from one level to another, especially in the home where such tasks are very tasking if done unaided.

Abstract: A poly-scissors device and a scissors connector, both aimed at simultaneously cutting two or more cuts in a medium, which cuts are at a constant distance from one another along their length. The poly-scissors includes two elements, each of which includes a spacer, two cutting ends and an operating end. The cutting ends are connected to the spacer in a substantially parallel and spaced apart orientation and the operating end is connected to the spacer in an opposite direction. The first cutting end of the first element is pivotally connected to the first cutting end of the second element while the second cutting end of the first element is pivotally connected to the second cutting end of the second element. The scissors connector is aimed at substantially parallel connecting at least two pairs of scissors, each of which has a pair of handles. The scissors connector includes two connecting members which connect the two pairs of handles.