Trajectory guide with angled or patterned lumens or height adjustment
First Claim
Patent Images
1. An apparatus comprising:
- a base, sized and shaped to be secured in or about a pre-existing entry portal in a human or animal 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 first lumen extending through the instrument guide coaxially to the first axis, the instrument guide also including a second lumen extending through the instrument guide to define a second axis nonparallel to the first axis, the second axis extending through the same entry portal as the first axis, the instrument guide additionally including a third lumen extending through the instrument guide to define a third axis nonparallel to the first and second axes, the third axis extending through the same entry portal as the first and second axes, the third axis intersecting the first and second axes at a point spaced apart from the instrument guide, wherein the instrument guide is coupled to the base with at least an adjustable coupling configured to position the instrument guide at an adjustable height above the entry portal, the adjustable coupling including a sleeve on the instrument guide that is received in a collar on the base.
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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.
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Citations
23 Claims
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1. An apparatus comprising:
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a base, sized and shaped to be secured in or about a pre-existing entry portal in a human or animal 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 first lumen extending through the instrument guide coaxially to the first axis, the instrument guide also including a second lumen extending through the instrument guide to define a second axis nonparallel to the first axis, the second axis extending through the same entry portal as the first axis, the instrument guide additionally including a third lumen extending through the instrument guide to define a third axis nonparallel to the first and second axes, the third axis extending through the same entry portal as the first and second axes, the third axis intersecting the first and second axes at a point spaced apart from the instrument guide, wherein the instrument guide is coupled to the base with at least an adjustable coupling configured to position the instrument guide at an adjustable height above the entry portal, the adjustable coupling including a sleeve on the instrument guide that is received in a collar on the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23)
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20. An apparatus comprising:
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a base, sized and shaped to be secured in or about a pre-existing entry portal in a human or animal 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; a saddle that is rotatably coupled to the base, the saddle defining a receptacle; and an instrument guide moveably coupled to the saddle, the instrument guide including a first lumen with a first axis that extends through the instrument guide and the entry portal toward the target, the instrument guide further including a second lumen extending through the instrument guide to define a second axis nonparallel to the first axis, the second axis extending through the same entry portal as the first axis, the instrument guide further including a third lumen extending through the instrument guide to define a third axis nonparallel to the first and second axes, the third axis extending through the same entry portal as the first and second axes, the third axis intersecting the first and second axes at a point spaced apart from the instrument guide, wherein the instrument guide includes a ball that is rotatably received in the receptacle of the saddle, and wherein the instrument guide includes a sleeve that is adjustably received in the ball such that the instrument guide is adjustable in height relative to the base.
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Specification