Hip replacement navigation system and method
First Claim
1. A hip joint navigation system, comprising:
- a jig having an anchor portion configured to be immovably connected to the pelvis, the jig having a connector;
a landmark acquisition probe coupled with the connector, the connector configured to move in at least two degrees of freedom relative to the jig, the landmark acquisition probe configured to move in at least one additional degree of freedom relative to the connector;
a first inertial navigation device configured to be immovably connected to the jig; and
a second inertial navigation device configured to determine the orientation of the landmark acquisition probe when the landmark acquisition probe is moved to touch an anatomical landmark,wherein the first inertial navigation device, the second inertial navigation device, or the first inertial navigation device and the second inertial navigation device comprises software incorporated into a processor configured to calculate the orientation of an anatomical plane based on data from at least one of the first inertial navigation device and the second inertial navigation device.
2 Assignments
0 Petitions
Accused Products
Abstract
In another embodiment, a hip joint navigation jig is provided that includes an anatomical interface comprising a bone engagement portion. A registration jig is also provided that is coupled, e.g., removeably, with the anatomical interface. A rotatable member is provided for rotation about an axis that is not vertical when the jig is mounted to the bone adjacent to a hip joint and the registration jig is coupled with the anatomical interface. An anatomy engaging probe is coupled with the rotatable member for rotation about the axis and is translatable to enable the probe to be brought into contact with a plurality of anatomical landmarks during a procedure. An inertial sensor is coupled with the probe to indicate orientation related to the landmarks, the sensor being disposed in a different orientation relative to horizontal when the probe is in contact with the landmarks.
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Citations
26 Claims
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1. A hip joint navigation system, comprising:
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a jig having an anchor portion configured to be immovably connected to the pelvis, the jig having a connector; a landmark acquisition probe coupled with the connector, the connector configured to move in at least two degrees of freedom relative to the jig, the landmark acquisition probe configured to move in at least one additional degree of freedom relative to the connector; a first inertial navigation device configured to be immovably connected to the jig; and a second inertial navigation device configured to determine the orientation of the landmark acquisition probe when the landmark acquisition probe is moved to touch an anatomical landmark, wherein the first inertial navigation device, the second inertial navigation device, or the first inertial navigation device and the second inertial navigation device comprises software incorporated into a processor configured to calculate the orientation of an anatomical plane based on data from at least one of the first inertial navigation device and the second inertial navigation device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A hip joint navigation system, comprising:
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a jig having an anchor portion configured to be immovably connected to the pelvis, the jig having a connector; a landmark acquisition probe coupled with the connector, the connector configured to move in at least two degrees of freedom relative to the jig, the landmark acquisition probe configured to move in at least one additional degree of freedom relative to the connector; a first inertial navigation device configured to be immovably connected to the jig; and a second inertial navigation device configured to generate spatial location information related to a point when the landmark acquisition probe contacts the point, wherein the first inertial navigation device, the second inertial navigation device, or the first inertial navigation device and the second inertial navigation device is or are configured to record the spatial location information of the point. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A hip joint navigation system, comprising:
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a jig having an anchor portion configured to be immovably connected to the pelvis, the jig having a connector; a landmark acquisition probe coupled with the connector, the connector configured to move in at least two degrees of freedom relative to the jig, the landmark acquisition probe configured to move in at least one additional degree of freedom relative to the connector; a first inertial navigation device configured to be immovably connected to the jig; and a second inertial navigation device configured to determine at least one of a position and an orientation of a tip of the landmark acquisition probe when the tip of the landmark acquisition probe contacts a landmark, wherein the first inertial navigation device, the second inertial navigation device, or the first inertial navigation device and the second inertial navigation device comprise software incorporated into a processor configured to calculate at least one of the position and the orientation of an anatomical plane based on a plurality of landmarks contacted by the tip of the landmark acquisition probe. - View Dependent Claims (22, 23)
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24. A hip joint navigation system, comprising:
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a jig having an anchor portion configured to be immovably connected to the pelvis, the jig having a connector; a landmark acquisition probe coupled with the connector, the connector configured to move in at least two degrees of freedom relative to the jig, the landmark acquisition probe configured to move in at least one additional degree of freedom relative to the connector; a first inertial navigation device configured to be immovably connected to the jig; and a second inertial navigation device configured to output position signals, orientation signals, or position and orientation signals indicative of the position, orientation, or position and orientation of the landmark acquisition probe in a plurality of positions of the landmark acquisition probe, wherein the first inertial navigation device, the second inertial navigation device, or the first inertial navigation device and the second inertial navigation device is configured to display information based on the position signals, orientation signals, or position and orientation signals. - View Dependent Claims (25, 26)
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Specification