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. 01, 1998
Filed:
Oct. 22, 1996
Michael Antony Tuke, Guildford, GB;
Robert Michael Wozencroft, Surbiton, GB;
Finsbury (Instruments) Limited, Leatherhead Surrey, GB;
Abstract
The present invention relates to a surgical tool for use in knee arthroplasty. The tool is designed to assist a surgeon to implant a knee prosthesis which will be stable when the knee is in flexion and in extension. The tool comprises a parallel pair of paddle flanges adapted for insertion into the flexion or extension gap located between resected surfaces of a proximal tibia and a corresponding distal femur. The paddle flanges are incrementally movable relative to each other to define a range of gaps extending between a minimum gap and a maximum gap between exterior surfaces thereof. The incremental movement is provided by a racked member on which one of the paddle flanges is mounted, the racked member being movable by hand operable means connected thereto and which racked member engages with a pawl to prevent movement thereof in a gap-decreasing direction when the tool is in use.