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:
Aug. 29, 1989
Filed:
Aug. 08, 1988
John R Davey, Toronto, CA;
William H Harris, Belmont, MA (US);
The General Hospital Corporation, Boston, MA (US);
Abstract
A drill alignment apparatus for a drill adapted for osteoplastic surgery comprises an alignment rod mounted thereto and a clamp element. The alignment rod is parallel to and disposed a predetermined distance (D) from a shaft of the drill. The clamp element includes an aperture which permits passage of the rod. The clamp element is adapted to be affixed to a bone, such as a femur, so that the aperture is displaced from the central axis of the bone by substantially the same distance which the center axis of the alignment rod is displaced from the center axis of the drill shaft. When drilling is commenced, the forward end of the alignment rod is placed within the aperture of the clamp element. As drilling progresses, the rod passes through the aperture, thereby ensuring that drilling occurs along a predetermined drilling path extending along the bone axis.