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. 08, 2005
Filed:
Dec. 14, 2001
Jeremy J. Nathanson, Vista, CA (US);
Dylann D. Ceriani, San Diego, CA (US);
Richard Gildersleeve, Escondido, CA (US);
Daniel S. Pflaster, Carlsbad, CA (US);
David L. Churchill, Burlington, VT (US);
Stephen J. Incavo, South Burlington, VT (US);
Bruce D. Beynnon, South Burlington, VT (US);
Jeremy J. Nathanson, Vista, CA (US);
Dylann D. Ceriani, San Diego, CA (US);
Richard Gildersleeve, Escondido, CA (US);
Daniel S. Pflaster, Carlsbad, CA (US);
David L. Churchill, Burlington, VT (US);
Stephen J. Incavo, South Burlington, VT (US);
Bruce D. Beynnon, South Burlington, VT (US);
Orthopaedic Designs, LLC, Burlington, VT (US);
Abstract
An internal osteotomy fixation apparatus is provided. The device comprises a distal plate including a channel. A slide is slidably received within the channel such that the slide is translatable with respect to the distal plate along a first axis. A proximal plate is hingedly connected to the slide, such that the proximal plate has two degrees of freedom relative to the distal plate. A ledge protruding from a first portion of the proximal plate is configured to support a proximal bone segment when the device is implanted. The slide includes ratchet teeth. A ratchet arm including teeth is attached to the distal plate, and configured to engage the slide ratchet teeth. A cross-section of the ratchet arm is configured to maintain a constant stress level along a flexed portion of the arm. The distal plate includes a shelf upon which the ratchet arm rests. Compressive loads borne by the device are translated through the shelf to the distal plate. A minimum length of the device is related to the longer of the ratchet arm or the segment of teeth on the slide. The distal plate includes a hole through which a release mechanism is accessible.