Lockable orientation stylus
First Claim
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1. 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 hole with a first shaped portion and a second shaped portion;
a stylus arm comprising a first end for referencing an portion of anatomy;
an elongated portion extending from said first end, the elongated portion having first and second shaped portion;
a second end with a detachable knob for rotating the stylus arm; and
wherein the elongated portion penetrates the first and second opening of the upper member and the hole of the stop and the stop is adapted to prevent the stylus arm from rotating or translating.
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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.
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Citations
25 Claims
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1. A device for identifying landmarks on the anatomy of a human for reference in a surgical procedure, the device comprising:
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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 hole with a first shaped portion and a second shaped portion;
a stylus arm comprising a first end for referencing an portion of anatomy;
an elongated portion extending from said first end, the elongated portion having first and second shaped portion;
a second end with a detachable knob for rotating the stylus arm; and
wherein the elongated portion penetrates the first and second opening of the upper member and the hole of the stop and the stop is adapted to prevent the stylus arm from rotating or translating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for locking an orientation stylus that is used to identify landmarks on the anatomy of a human for reference in a surgical procedure, the process comprising:
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providing a stylus body having an upper member and an elongated stylus shaft extending from the upper member, wherein the upper member has openings that are opposite from one another and the upper member and a portion of the shaft include a cavity;
providing a stop, wherein the stop includes holes opposite one another and on the side of the stop, the holes comprising a first portion and second portion that are different in shape providing a stylus arm with a first end, a second end, and an elongated portion between said first and second end, the elongated portion having a first and second shaped portion;
depressing the stop until the first portion of the stop opening is essentially aligned with the upper member openings;
inserting the stylus arm through said upper member openings and first portion of the stop openings;
moving the stylus arm in the rotational or translational direction; and
locking the stylus arm rotationally and translationally by releasing the stop. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A process for using a stylus to identify landmarks on the anatomy of a human for reference in a surgical procedure, the process comprising:
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providing 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;
providing a stop partially located in the cavity and in communication with the spring member, the stop comprising a hole with a first shaped portion and a second shaped portion;
providing a stylus arm comprising a first end for referencing an portion of anatomy;
an elongated portion extending from said first end, the elongated portion having first and second shaped portion;
a second end with a detachable knob for rotating the stylus arm;
locating the stylus arm in the first and second opening of the upper member and the hole of the stop;
depressing the stop until the first portion of the stop opening is essentially aligned with the upper member openings;
moving the stylus arm in the rotational or translational direction to a reference position to locate a reference on the human anatomy;
releasing the stop to lock the stylus arm from rotating or translating;
depressing the stop to unlock the stylus;
moving the stylus arm in the rotational or translational direction to remove the stylus arm from the reference position. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification