Abstract: An exercise device having a coupling member movable by the user between rest and end limit of travel positions, a constant weight, and a weight-lifting arm operatively connected to the weight and movable through a vertical plane to move the weight between rest and elevated positions corresponding to the rest and end limit positions of the coupling member. The device further includes a pivot arm pivotally movable through a pivot arm plane having a user-selectable angular orientation to transmit a selectable force between the coupling member and weight dependent upon the selected angular orientation. A link arm is connected between the pivot arm and the weight-lifting arm to transmit force therebetween. The pivot arm is pivotally attached to a rotatable pivot arm support which is selectively rotated by a lever arm moved by an electric motor and screw arrangement to selectively change the angular orientation of the pivot arm plane.
October 2, 1992
Date of Patent:
February 7, 1995
Stairmaster Sports/Medical Products, Inc.
Abstract: An apparatus for exercising a bed-ridden patient includes a frame; a load movably supported by the frame and having a load attachment point for movably carrying a limb of the patient, the load including a wheeled carriage, the frame including a track for guiding the carriage; a drive for repetitively cycling the load in a carriage path relative to the frame and including a first crank driven by a motor, and a first connecting rod pivotally connected to the first crank for reciprocating the carriage along the track; a base for supportively anchoring the apparatus; a pivot for adjustably orienting the frame in a fixed position relative to the base, the pivot having a first position for horizontally orienting the track for lateral movement of the limb and a second position for vertically orienting the track for raising and lowering the limb; and a base plate, the frame being supported by the base plate, the lift attachment point being fixably located relative to the base plate, a clamp arm pivotally connected be
Abstract: An electromagnetic acoustic pressure pulse source has a membrane with at least one electrically conductive region, the membrane being disposed for interacting on one side with an acoustic propagation medium, and having an opposite side facing a flat, spiral coil arrangement. The coil arrangement is driven with high-voltage pulses which cause the membrane to be rapidly repelled from the coil arrangement, thereby generating a pressure pulse in the acoustic propagation medium. The potential difference between the turns of the coil arrangement and the electrically conductive region of the membrane varies across the membrane, and the membrane is provided with a depression on the side thereof facing the coil arrangement in a region of high potential difference between the turns of the coil and the electrically conductive region of the membrane.
Abstract: A device and method are provided the purpose of increasing arterial blood flow to the lower leg, calf, ankle and foot. The device is a compression boot, or cast, and consists of a mono-compartment bladder enclosed in a non-elastic outer envelope connected to an air compressor with regulator valve, providing fast inflation to pressures over 80 mm Hg, within 0.5 seconds. This high pressure compression phase is sustained for 2 seconds. Decompression occurs rapidly, within 0.5 seconds, by venting a large valve to the atmosphere. During the resulting low pressure phase (pressure 0-30 mm Hg), which lasts between 8-14 seconds, there is a marked increase in arterial blood flow.