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US 7,682,362 B2Granted
Lockable orientation stylus
AssigneeSmith & Nephew, Inc.
InventorRoger Ryan Dees, Jr.
Life of this patent
Estimating the term…
Abstract
The present invention relates generally to devices and methods for identifying landmarks on the anatomy of a human for reference in a surgical procedure. In certain embodiments of the present invention, a stylus body is provided with a spring member and stop with openings having different shaped portions so that when the stop is depressed it can free the stylus arm and allow rotation and/or translation and, when released, it can lock the stylus arm from rotating and/or translating.
Claims9
A device for identifying landmarks on the anatomy of a human for reference in a surgical procedure, the device comprising:
- a stylus body having an upper member with opposing first and second openings that are essentially aligned and a stylus shaft extending from the upper member, wherein the upper member and at least part of the stylus shaft comprise a cavity;
- a spring member located in the cavity;
- a stop partially located in the cavity and in communication with the spring member, the stop comprising a first hole opposing a second hole, the first hole and the second hole being essentially aligned, wherein each of the first hole and the second hole comprise a first shaped portion and a second shaped portion;
- a stylus arm comprising
- a first end for referencing a portion of the anatomy;
- an elongated portion extending from said first end, the elongated portion having first and second shaped portions;
- a second end with a detachable knob for rotating the stylus arm;
- and
- wherein the elongated portion penetrates the first and second openings of the upper member and the first and second holes of the stop and wherein at least a portion of the first hole and at least a portion of the second hole are adapted to prevent the stylus arm from rotating or translating.
6 more elements
Dependencies are inferred from the claim text.