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. 19, 1994
Filed:
Aug. 20, 1993
Jeffrey T Prince, Grass Valley, CA (US);
Glen R Mangseth, El Dorado Hills, CA (US);
Malcolm L Bond, Davis, CA (US);
John Bouwman, Vacaville, CA (US);
Philip T Dempster, St. Helena, CA (US);
Loredan Biomedical, Inc., West Sacramento, CA (US);
Abstract
A recumbent bilateral reciprocal isokinetic leg exerciser wherein first and second reciprocating members are slidingly coupled to a linear track so that they move with linear bilateral reciprocal motion. Both reciprocating members are coupled to associated hydraulic cylinders so that hydraulic fluid is drawn into or forced out of the hydraulic cylinders as the reciprocating members move along the track. A valve assembly is coupled to the hydraulic cylinders for controlling fluid flow into and out of the hydraulic cylinders so that the reciprocating members move isokinetically. The valve assembly may be set for simultaneous movement of the first and second reciprocating members or for movement of one reciprocating member by itself. To ensure accurate measurement of patient effort, a strain gauge assembly is disposed on each reciprocating member for detecting deformation of the reciprocating member along multiple axes. The information obtained by the strain gauge assembly then may be used to calculate the actual forces being applied in a desired direction.