Abstract: An apparatus for laying a paver has a body portion having a top side and an underside. A raised paver guide is located on the top side and is positioned to receive the paver when the paver is against the top side. The underside is at least partially hollow.

Abstract: An apparatus for laying a paver has a body portion having a top side and an underside. A raised paver guide is located on the top side and is positioned to receive the paver when the paver is against the top side. The underside is at least partially hollow.

Abstract: An apparatus for laying a paver has a body portion having a top side and an underside. A raised paver guide is located on the top side and is positioned to receive the paver when the paver is against the top side. The underside is at least partially hollow.

Abstract: An apparatus for laying a paver has a body portion having a top side and an underside. A raised paver guide is located on the top side and is positioned to receive the paver when the paver is against the top side. The underside is at least partially hollow.

Abstract: A method of performing 3-dimensional skeletal analysis on a patient using an apparatus which includes a digitizer, the digitizer being adapted to accept either a scanning digitizer tip or a point digitizer tip, includes the steps of placing the patient in a variety of positions relevant to musculoskeletal problems and performing a series of rolling scans, with the scanning digitizer tip and single point landmark digitizations of musculoskeletal landmarks, with the point digitizer tip to obtain 3-dimensional skeletal data. The data is analyzed in order to provide clinically relevant 3-dimensional information relating to musculoskeletal quantities and imbalances. An apparatus for carrying out the method includes an upright column support and a retractable column support movable along the support column for supporting the patient. A digitizer measures the position of a point, or a group of points, on the patient's body in 3-dimensional space.

Abstract: An article of wearing apparel, to be worn on the upper body of a subject, includes a portion for covering the back of the subject. Sensors for sensing the changes in posture of the subject and providing electrical signals proportional to the degree of change in posture are removably mounted on the portion for covering the back of the subject. Electronic circuitry analyzes the electrical signals to provide an output, which can be sensed by the subject, when the posture of the subject deviates from a pre-set postural position by a predetermined amount. The electronic circuit is disposed in a carrier which is also removably mounted from the article of clothing apparel.

Abstract: The spaced beam and bearing arrangements each comprise a deflection beam and a support. The platform is disposed on and supported by the support for receiving and being deflected by an applied force. Thus, deflection of the platform is transmitted to the deflection beams to cause deflection of the deflection beams. The beam and bearing arrangements isolate beam deflections to two mutually perpendicular directions, which mutually perpendicular directions are both perpendicular to the longitudinal axis of each deflection beam. The deflection of the deflection beams is measured in the two directions thereof and the deflection beams are arranged such that no two redundant directions of the deflection beams are permissible.

Abstract: A method for measuring parameters relating to the stability of joints in a patient's body includes the steps of securing a reference portion of the joint (that portion of the joint closest to the body) to a fixed location. A three dimensional digitization of the size, shape, position and coordinate system of the two portions is performed. A soft tissue compensation procedure is performed by applying forces to the reference portion of the joint to thereby determine the amount of reference portion motion, in the soft tissue surrounding the reference portion, due to these forces. A variety of forces are applied to the relative portion of a joint, which is movable relative to the reference portion thereof, and the total motion of the reference and relative portions associated with the forces are measured.

Abstract: The invention relates to a knee laxity evaluator which consists of an instrumented seat, a restraint means for restraining the thigh of a patient to the instrumented seat, a motion module for measuring motion of the unrestrained part of the leg relative to the thigh of the patient, and processor means for analyzing outputs of the instrumented seat and the motion module to provide indications of applied force and relative motion. The invention also relates to a specific motion module/digitizer combination which can be used as a part of the knee laxity evaluator, or which can be used independently or in alternate systems. The invention also relates to a novel dynanometer for use in the knee laxity evaluator which includes a triple beam arrangement.

Abstract: The invention relates to a knee laxity evaluator which consists of an instrumented seat, a restraint means for restraining the thigh of a patient to the instrumented seat, a motion module for measuring motion of the unrestrained part of the leg relative to the thigh of the patient, and processor means for analyzing outputs of the instrumented seat and the motion module to provide indications of applied force and relative motion. The invention also relates to a specific motion module/digitizer combination which can be used as a part of the knee laxity evaluator, or which can be used independently or in alternate systems. The invention also relates to a novel dynanometer for use in the knee laxity evaluator which includes a triple beam arrangement.