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:
Mar. 07, 1995
Filed:
Sep. 21, 1993
Thomas D Petersen, La Mesa, CA (US);
Dennis W Burke, Milton, MA (US);
Other;
Abstract
An extramedullary proximal tibial guide includes a distal end carrying a vertically adjustable ankle bracket as well as an ankle pointer, and a proximal end carrying a saw guide. The saw guide includes a saw guiding slot which is so configured as to have an open area between the bottom of a slot rail and portions of the top of the bone which is to be resected so that the surgeon may precisely view the location of engagement of the surgical saw with the bone structure. The surface area of engagement between the saw guide and the bone is made quite small with a sharp bone contacting edge to facilitate micro adjustment. Laterally of the saw guiding slot, side flares are provided which are designed to protect the patellar tendon and soft tissues during resection. The ankle bracket is held in place about the ankle of the patient through the use of a fastener including a ball chain and a spring. The inventive guide is provided with structures permitting the various required adjustments, which structures are recessed within the guide structure to avoid protrusions which could interfere with the surgical procedure.