Navigation and positioning instruments for joint repair
First Claim
1. A guidance instrument for controlled delivery of a device to a target area of a bone, comprising:
- a guide frame having at least one rail arm and a plurality of device portals on the arm arranged in a grid pattern and configured for locating the target area, each portal defining an angular trajectory and being configured to provide controlled delivery of the device to the target area, the guide frame further including at least one visual marker that enables the guide frame to be aligned relative to an anatomical landmark on the bone to be treated by visualization of the marker; and
a stabilizer element including an engagement portion configured to contact the bone or surrounding tissue.
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Accused Products
Abstract
An instrument for controlled delivery of a device to a target area near a defect of a bone is provided. The instrument comprises a guide frame having a plurality of device portals, each portal defining a trajectory. The guide frame further includes visual markers for aligning the guide frame to an anatomical landmark on the bone to be treated. The instrument also includes a holder for releasable attachment with the guide frame. Each device portal is configured to provide accurate and controlled delivery of the device to the target area. In one example, the markers are radiopaque, and are visualized through fluoroscopy. A method of using the instrument is also provided.
280 Citations
19 Claims
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1. A guidance instrument for controlled delivery of a device to a target area of a bone, comprising:
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a guide frame having at least one rail arm and a plurality of device portals on the arm arranged in a grid pattern and configured for locating the target area, each portal defining an angular trajectory and being configured to provide controlled delivery of the device to the target area, the guide frame further including at least one visual marker that enables the guide frame to be aligned relative to an anatomical landmark on the bone to be treated by visualization of the marker; and a stabilizer element including an engagement portion configured to contact the bone or surrounding tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A guidance instrument or controlled delivery of a device to a target area of a bone, comprising:
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a guide frame having at least one rail arm and a plurality of device portals arranged in two or more zones relative to the guide frame and configured for locating the target area, each portal defining an angular trajectory and being configured to provide controlled delivery of the device to the target area, the angular trajectories of the device portals arranged to form a targeting portal grid; and a stabilizer element including an engagement portion configured to stabilize the guide frame and register a position of the guide frame relative to the target area of the bone. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A guidance instrument for controlled delivery of a device to a target area of a bone, comprising:
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a guide frame having a first guide portion and a second guide portion, the first and second guide portions each including at least one device portal defining an angular trajectory and a visual marker, wherein the angular trajectories of the device portals are arranged to form a targeting portal grid, and wherein the guide frame can be aligned relative to an anatomical landmark on the bone by aligning the visual marker of the first guide portion with the visual marker of the second guide portion; and a stabilizer element including an engagement portion configured to be positioned against the bone or surrounding tissue. - View Dependent Claims (18, 19)
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Specification