System, device, and method for determining a position of an object
First Claim
1. A system for determining a position and a change in the position of an anatomical structure, comprising:
- a surgical navigation system;
a substrate including means for removably attaching the substrate to an outer surface of a body, wherein the body includes an anatomical structure;
a sensor attached to the substrate that can be tracked by the surgical navigation system to determine a position of the sensor;
a magnetic transmitter attached to the substrate;
a magnetic sensor comprising means for attachment to the anatomical structure,wherein the magnetic transmitter and the magnetic sensor are utilized to determine a position of the anatomical structure relative to the sensor;
a first circuit for calculating a global position of the anatomical structure by concatenating the position of the sensor and the position of the anatomical structure relative to the sensor; and
a second circuit for displaying the global position of the anatomical structure on a display unit.
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Accused Products
Abstract
A system is disclosed for determining a position and a change in the position of an anatomical structure. The system utilizes a surgical navigation system and a substrate that is capable of being removably mounted to an outer surface of a patient'"'"'s body. The substrate includes a sensor that is tracked by the surgical navigation system and a positional device that determines the position of an anatomical structure relative to the sensor. The concatenation of the position of the sensor and the relative position of the anatomical structure allows a global position of the anatomical structure to be determined by a computer system and displayed to the user.
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Citations
24 Claims
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1. A system for determining a position and a change in the position of an anatomical structure, comprising:
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a surgical navigation system; a substrate including means for removably attaching the substrate to an outer surface of a body, wherein the body includes an anatomical structure; a sensor attached to the substrate that can be tracked by the surgical navigation system to determine a position of the sensor; a magnetic transmitter attached to the substrate; a magnetic sensor comprising means for attachment to the anatomical structure, wherein the magnetic transmitter and the magnetic sensor are utilized to determine a position of the anatomical structure relative to the sensor; a first circuit for calculating a global position of the anatomical structure by concatenating the position of the sensor and the position of the anatomical structure relative to the sensor; and a second circuit for displaying the global position of the anatomical structure on a display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining a position and a change in the position of an anatomical structure using a surgical navigation system, the method comprising the steps of:
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providing a surgical navigation system; attaching a substrate in a removable manner to an outer surface of a body, the substrate having an associated sensor and having a positional device for determining a position of the anatomical structure relative to the sensor, where in the positional device includes a magnetic transmitter attached to the substrate and a magnetic sensor comprising means for attachment to the anatomical structure, and wherein the body includes an anatomical structure spaced interiorly from the outer surface, the magnetic transmitter and the magnetic sensor are utilized to determine a position of the anatomical structure relative to the sensor, and the sensor is tracked by the surgical navigation system to determine a position of the sensor; determining the global position of the anatomical structure by concatenating the position of the sensor and the position of the anatomical structure relative to the sensor; tracking the position of the anatomical structure with the surgical navigation system; and displaying the position of the anatomical structure on a display unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification