Trajectory guide with angled or patterned lumens or height adjustment
AssigneesMedtronic, Inc., The University of South Florida Research Foundation, Inc.
InventorsRudy A. Mazzocchi, Matthew S. Solar, Thomas B. Freeman
Life of this patent
Estimating the term…
Abstract
This document discusses trajectory guides that include an instrument guide with at least one lumen angled with respect to an orthogonal or other through-axis. In one example, patterned lumens on the instrument guide provide a mirror image pattern of trajectory axes intersecting a target plane. In another example, height adjustment of the instrument guide extends these or other targeting techniques to a three-dimensional volume. This document also describes a method of manufacturing such an instrument guide, which is also applicable to manufacturing an instrument guide providing parallel lumens.
Claims42
An apparatus comprising:
- a base, sized and shaped to be secured in or about an entry portal in a subject that includes a target within the subject beyond the entry portal, the entry portal defining an entry plane, and the target defining a target plane that is substantially parallel to the entry plane;
- and
- an instrument guide, coupled to the base and configured to be oriented with respect to the base to define a first axis extending through the instrument guide and the entry portal toward the target, the instrument guide including a second lumen extending through the instrument guide to define a second axis nonparallel to the first axis.
A method comprising:
- securing a position of an instrument guide with respect to an entry portal in a subject to obtain a first axis that passes substantially through a center of the entry portal toward a target in the subject;
- and
- providing a second trajectory through the instrument guide along a second axis directed through the entry portal, to obtain a nonzero first angle between the first and second axes.
A method comprising:
- securing a position of an instrument guide with respect to an entry portal in a subject to obtain a first trajectory along a first axis that passes through a first access point on an outer surface of the instrument guide and passes substantially through a center of the entry portal toward a target in the subject, the first axis defining a range plane that is orthogonal to the first axis at a first range point on the first axis that is within the subject beyond the entry portal, the first axis also defining a first distance between the first access point and the first range point;
- and
- providing a second trajectory through the instrument guide along a second axis that passes through a second access point on the outer surface of the instrument guide and through the entry portal, to obtain a nonzero first angle between the first and second axes, and to obtain a second distance between the second access point and a second range point at an intersection between the second access and the range plane, wherein the second distance is equal to the first distance.
A method comprising:
- disposing at least one tube in a desired orientation within at least a portion of a bushing;
- introducing a flowable hardening agent about the tube within at least a portion of the bushing;
- and
- allowing the agent to harden.
Dependencies are inferred from the claim text.