State of Oregon

Derald E Herling

David G Ullman

Eric L Sauers

Katharine M Hunter-Zaworski

Garrett E Clark

Paul A Borsa

Joseph R Zaworski

An instrumented arthrometer includes displacement sensors configured to be attached to joint-reference locations. An applied force produces a joint displacement that is indicated by the displacement sensors. A force sensor measures the force applied to produce a corresponding displacement, and force/displacement data are stored on a hard disk or other computer-readable medium. A controller displays displacement/force data with comparison data based on a displacement/force data for the same joint prior to therapy or with a normal range of joint displacement/force data. In a specific example, the displacement sensors are electromagnetic sensors that measure displacement in three dimensions, and stiffness/displacement data is displayed in three dimensions.

Methods and apparatus for joint laxity measurements

A securement system is provided for a rollable mobility aid with a frame and rollers, which aid is located adjacent surrounding structure such as the interior of a vehicle. The system includes protruding structure attached to such frame, with a substantially rigid, operative section that includes a broad engaging expanse. Also included is upright receiver (or capture) structure fixedly attached to such vehicle in a receiving position, and including a receiving section that is correspondingly broad with respect to the engaging expanse. The receiving section further includes a selectively actuable securement/release mechanism for securing the operative section to the vehicle. The protruding structure is shown as plural spaced members, with the receiver structure being constructed with receiving sections to receive each member. The receiver structure is shown as capable of selective rotation about its vertical axis and selective translation with respect to its receiving position. The system is also shown with indicator structure operatively connected to the securement/release mechanism and structured to provide an indication of whether a securement condition exists. Plural types of actuators for the securement/release mechanism are also provided.

Securement system for a rollable mobility aid

Growing community of inventors

Corvallis, OR, United States of America

Derald E Herling