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. 21, 1989
Filed:
Dec. 03, 1987
John A Engelhardt, Warsaw, IN (US);
Richard R Tarr, Warsaw, IN (US);
Boehringer Mannheim Corporation, Indianapolis, IN (US);
Abstract
A modular intramedullary nail system for the repair of long bone fractures. The system comprises several base nails of different lengths and diameters, each of which may be anatomically curved, and several extension members of different lengths and diameters. By selection of various combinations of base nails and extension members, nails of substantially any length and diameter can be constructed at the time of surgery. Nails for left and right bones are interchangeable. A unique construction enables an extension member to be readily and fixedly joined to the trailing end of a base nail so as to prevent inadvertent separation of the base nail and extension member while maximizing strength of the modular nail. The base nail is preferably tri-flanged, each flange terminating at a sharp point at its distal end. Cross screws may also be employed to prevent relative motion between the bone and the nail and also serve to prevent unlocking of the extension member from the base nail.