Automatic identification of tracked surgical devices using an electromagnetic localization system
First Claim
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1. A navigation system to navigate a procedure on an anatomy, comprising:
- an instrument having a first portion and a second portion configured to be moved relative to the anatomy, wherein at least one of the first portion or the second portion comprises a passage;
an identification member including field distortion members coupled to one of the first portion or the second portion;
a tracking device passed through the passage comprised in the first portion or the second portion of the instrument and configured to be tracked, the tracking device responsive to the field distortion members to obtain identification information regarding an identification of the instrument; and
a processor operable to identify the instrument based at least in part on the identification information obtained from the tracking device.
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Abstract
A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly.
57 Citations
22 Claims
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1. A navigation system to navigate a procedure on an anatomy, comprising:
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an instrument having a first portion and a second portion configured to be moved relative to the anatomy, wherein at least one of the first portion or the second portion comprises a passage; an identification member including field distortion members coupled to one of the first portion or the second portion; a tracking device passed through the passage comprised in the first portion or the second portion of the instrument and configured to be tracked, the tracking device responsive to the field distortion members to obtain identification information regarding an identification of the instrument; and a processor operable to identify the instrument based at least in part on the identification information obtained from the tracking device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A navigation system to navigate a procedure on an anatomy, comprising:
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an instrument operable to be moved relative to the anatomy, the instrument defining a channel in and through at least a portion of a length of the instrument; at least one conductive identification band positioned around the channel in the instrument; an electromagnetic tracking device moveable within the channel of the instrument and responsive to the at least one conductive identification band to obtain identification information regarding an identification of the instrument and further configured to move with the instrument to be tracked in physical space; a tracking system that generates an electromagnetic field for tracking the electromagnetic tracking device as the electromagnetic tracking device and the associated instrument move in physical space; and a processor that identifies the instrument based at least in part on the identification information obtained by the tracking device from the identification band. - View Dependent Claims (16, 17)
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18. A navigation system to navigate a procedure on an anatomy, comprising:
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an instrument to move relative to the anatomy, the instrument having a handle member and a plurality of tip members, each of the plurality of tip members comprising a channel in and through at least a portion of a length of respective tip members; at least one conductive identification band positioned around each channel in each of the plurality of tip members; a tracking system having, a localizer that generates an electromagnetic field;
an electromagnetic tracking device moveable within the channel of the tip member and past the at least one conductive identification band to obtain identification information regarding an identification of the instrument at least by shielding the electromagnetic tracking device from the generated electromagnetic field and further configured to move with the instrument to be tracked in physical space;a tracking processor for tracking the electromagnetic tracking device as the electromagnetic tracking device and the associated instrument move in physical space; and processor that identifies which of the plurality of tip members is presently positioned over the electromagnetic tracking device based at least in part on the identification information obtained by the tracking device from the identification band. - View Dependent Claims (19, 20, 21, 22)
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Specification