Method and apparatus for surgical navigation
AssigneeMedtronic Navigation, Inc.
InventorsJohn H. Dukesherer, Bruce M. Burg, Bradley A. Jascob, Paul Kessman
Life of this patent
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Abstract
A surgical navigation system for navigating a region of a patient includes a non-invasive dynamic reference frame and/or fiducial marker, sensor tipped instruments, and isolator circuits. The dynamic reference frame may be repeatably placed on the patient in a precise location for guiding the instruments. The instruments may be precisely guided by positioning sensors near moveable portions of the instruments. Electrical sources may be electrically isolated from the patient.
Claims26
In a surgical navigation system a substantially minimally invasive dynamic reference frame for dynamically referencing portions of an anatomy, comprising:
- a body portion selectively attachable to a portion of the anatomy, the body portion having a sidewall defining an exterior perimeter defining an interior portion and a passage through the sidewall into the interior portion;
- a navigation portion to at least one of sense, transmit, or combinations thereof a characteristic operable to pass through the passage defined by the sidewall and be positioned in the interior portion;
- and
- a holding section to hold said body portion relative to the portion of the anatomy;
- wherein said holding section substantially non-invasively holds said body portion relative to the portion of the anatomy;
- wherein the navigation portion is operable to be selectively positioned in the interior portion through the passage through the sidewall.
In a surgical navigation system a substantially minimally invasive dynamic reference frame for dynamically referencing a portion of an anatomy, comprising:
- a body portion selectively attachable to the portion of the anatomy;
- a navigation portion associated with the body portion to at least one of sense a characteristic, transmit a characteristic, or combinations thereof;
- a holding section operable to contact an exterior of the portion of the anatomy to assist in holding the body portion relative to the portion of the anatomy;
- a fiducial portion operable to be imaged and determined in the image data;
- wherein the body portion defines a volume enclosed by an outer surface and a recess within the outer surface of the body portion;
- wherein the body portion defines a concave area operable to engage at least a portion of a tensioning member to assist in holding the body portion relative to the portion of the anatomy;
- wherein said body portion further defines a recess within the volume to receive the navigation portion;
- wherein the navigation portion is operable to be selectively positioned in the recess through a passage through the outside surface;
- wherein the navigation portion is operable to be removed from the recess during imaging of the anatomy to assist in eliminating any distortion that may be caused by the navigation portion.
In a surgical navigation system having a substantially minimally invasive dynamic reference frame for dynamically referencing a portion of an anatomy, the surgical navigation system comprising:
- a first section defining a volume sized and operable to be positioned relative to the portion of the anatomy;
- a tracking device associated with the first section to at least one of sense a characteristic, transmit a characteristic, or combinations thereof;
- and
- a holding section associated with the first section and operable to assist in holding the first section relative to the portion of the anatomy;
- wherein at least one of the first section, the holding section, or combinations thereof defines a recess that is complementary in shape to the tracking device and is operable to receive the tracking device substantially within the volume.
In a surgical navigation system having a substantially minimally invasive dynamic reference frame for dynamically referencing a portion of an anatomy, the surgical navigation system comprising:
- a first section defining a volume sized and operable to be positioned relative to the portion of the anatomy;
- a tracking device associated with the first section to at least one of sense a characteristic, transmit a characteristic, or combinations thereof;
- a holding section associated with the first section and operable to assist in holding the first section relative to the portion of the anatomy;
- and
- a tensioning member;
- wherein the tensioning member extends over and engages at least a portion of the concave regions defined by the holding section to assist in holding the first section relative to the anatomy.
Dependencies are inferred from the claim text.