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:
Feb. 13, 1990
Filed:
Mar. 31, 1988
Applicant:
Inventors:
Mark D Brown, Miami, FL (US);
David C Holmes, Miami, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128781 ; 606191 ;
Abstract
An apparatus and method for measuring spinal instability provides a vertebrae distractor having a pair of distractor arms driven by a motor which separate adjacent vertebrae of a motion segment unit of the spine at a constant rate of distraction up to a predetermined maximum force and measuring the resistance of the adjacent vertebrae to the force. The changes in the resistance to distraction are detected and recorded. The data thus provided is then compared to predetermined standards. A determination concerning further treatment of the subject patient may be based upon the results obtained.