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:
Sep. 07, 1993
Filed:
Aug. 01, 1991
Kenneth A Pettine, Ft. Collins, CO (US);
James D Stice, Minneapolis, MN (US);
Timothy J Ley, Minneapolis, MN (US);
Other;
Abstract
An orthopedic bone probing device to locate cavities, holes, and crevices in bones. For instance, where holes are drilled in bones to accommodate fastening devices it is important to ascertain if there are any sites where the drilling penetrated the entire side wall of the bone resulting in an undesirable hole in the side wall of the bone. The device of this invention consists of a cannula containing a shaft of superelastic material that assumes a retractable position angular to the axis of the cannula upon being ejected from one end of the cannula and the other end of the cannula is retained by a plunger that limits the amount of shaft that can be ejected and necessitates the removal of the shaft if the cannula is to be removed.