Deep organ access device and method
AssigneesImage-Guided Neurologics, Inc., Mayo Foundation for Medical Education and Research
InventorsJames G. Skakoon, Robert Wharen, Matthew S. Solar, Kari Parmer, Rudy A. Mazzocchi, John David, Frank Murdock, David Hatcher, Thomas I. Miller, Timothy Alan Parmer, Charles L. Truwit
Life of this patent
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Abstract
Devices and methods provide accurate targeting, placement, and/or stabilization of an electrode or other instrument(s) into the brain or other body organ, such as to treat severe tremor or other neurological disorders. Targeting is performed using any form of image-guidance, including real-time MRI, CT, or frameless surgical navigation systems.
Claims45
An access device for guiding an instrument along a trajectory through an entry portal in a surface, the entry portal defining an entry plane and a rotation axis normal to the entry plane, the access device including:
- a base, configured to be mounted to the surface in or about the entry portal;
- an instrument guide assembly, rotatably coupled to the base to allow rotation of the instrument guide assembly about the rotation axis;
- an instrument guide, including at least one first guide lumen for guiding the instrument, the at least one first guide lumen defining a corresponding at least one first insertion axis, the instrument guide coupled to the instrument guide assembly using an arc-shaped sliding joint capable of adjusting an insertion angle of the at least one insertion axis with respect to the rotation axis;
- and
- wherein the base and the instrument guide assembly are sized and shaped to allow viewing of the entry portal during the insertion of the instrument through the entry portal as directed by the instrument guide.
An access device for guiding an instrument along a trajectory though an entry portal in a surface, the entry portal defining an entry plane and a rotation axis normal to the entry plane, the access device including:
- a base, configured to be mounted to the surface in or about the entry portal;
- and
- an instrument guide, adjustably coupled to the base for adjusting and fixing the trajectory, the instrument guide including a plurality of guide lumens arranged in a predetermined spatial relationship, the guide lumens including:
- a central guide lumen, defining a central insertion axis that intersects the rotation axis at the entry plane;
- and
- four peripheral guide lumens, offset from the central guide lumen, the peripheral guide lumens defining corresponding peripheral insertion axes that are parallel to the first insertion axis.
A method including:
- securing a base portion of a multiple guide lumen carrying assembly around an entry portal in a surface;
- rotating at least a portion of the guide lumen carrying assembly about a first axis that is substantially concentric to the entry portal and substantially orthogonal to the surface;
- tilting at least a portion of the assembly so that a second axis, extending concentrically through one of the guide lumens in the guide lumen carrying assembly, is at a desired angle with the entry portal in the surface;
- and
- fixing a position of the guide lumen, including securing the rotating portion of the guide-lumen assembly and securing the tilting portion of the guide-lumen carrying assembly in a manner to allow viewing of the entry portal during insertion of an instrument through the entry portal as directed by the guide lumen of the instrument guide.
Dependencies are inferred from the claim text.