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. 24, 1976
Filed:
May. 28, 1975
Alan John Lee, Devon, EN;
Robin Sydney Ling, Devon, EN;
National Research Development Corporation, London, EN;
Abstract
An endoprosthetic femoral head device comprising a ball-shaped head connected, by way of a necked portion, to the wider end of a tapered intramedullary stem is modified to facilitate implantation involving detachment and re-attachment of the greater trochanter. The modification comprises the provision of a slot which extends longitudinally along the wider end of the stem, is open at one end, and has an interior width greater than that of its longitudinal mouth. A bolt-like member is adjustably located by its head in this slot with its shaft projecting from the device for passage through a bore formed in the detached trochanter. The trochanter is thus relocated and is secured by a fastener on the shaft free end. Preferably a spider-form washer with spring legs is located between the trochanter and fastener, and a screw-in plug is applied to the slot to positively locate the bolt head.