The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1999
Filed:
Mar. 27, 1996
Alexei J Marko, Vancouver B.C., CA;
James A McEwen, Richmond, B.C., CA;
Brian Day, Vancouver B.C., CA;
Michael Jameson, North Vancouver B.C., CA;
Septimiu E Salcudean, Vancouver B.C., CA;
Peter D Lawrence, Vancouver B.C., CA;
Other;
Abstract
Apparatus for evaluating the stability of the shoulder joint of a human subject includes a rotatable, elbow-holding assembly that has sensors and associated processing components for producing an indication of the rotational angle of the long axis of the humerus of the subject relative to a reference. Sensors measure muscle activity as the humerus is rotated. Changes in the muscle activity measurement are processed to produce an indication of the changes in the subject's apprehension as the humerus is moved. The apparatus may include a clock that indicates the times when muscle activity occurs. The levels of muscle activity may be recorded at different times and indicated to the operator. Pressure can be applied in a direction normal to the long axis of the humerus, and sensors produce an indication of the level of the applied pressure and corresponding apprehension of the subject. Also available is an indication of the level of muscle activity that occurs when such pressure is applied.