Method and Device for the Sonographic Navigated Repositioning of Bone Fragments
First Claim
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1. A method for aligning a first fragment and a second fragment of a fractured bone relative to each other, comprising:
- using an ultrasound device to identify at least one landmark on each of the first fragment of the bone and the second fragment of the bone;
determining a spatial position and/or orientation of each of the identified landmarks; and
using the determined spatial position and/or orientation of each of the identified landmarks to determine an alignment of the first and second fragments of the bone that satisfies a predetermined criteria.
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Abstract
A method and device for aligning the first and second fragments of a fractured bone relative to each other, wherein the bone fragments may be aligned using images from an ultrasound device that is tracked by a navigation system. The positions and/or orientations of landmarks on each of the bone fragments may be used to set the bone alignment for more precise healing.
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Citations
20 Claims
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1. A method for aligning a first fragment and a second fragment of a fractured bone relative to each other, comprising:
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using an ultrasound device to identify at least one landmark on each of the first fragment of the bone and the second fragment of the bone; determining a spatial position and/or orientation of each of the identified landmarks; and using the determined spatial position and/or orientation of each of the identified landmarks to determine an alignment of the first and second fragments of the bone that satisfies a predetermined criteria. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A computer program embodied on a computer readable medium for aligning a first fragment and a second fragment of a fractured bone relative to each other, comprising
code that identifies at least one landmark on each of the first fragment of the bone and second fragment of bone from imaging data of the first and second fragments of the bone; -
code that determines a spatial position and/or orientation of each of the identified landmarks; and code that uses the determined spatial position and/or orientation of each of the identified landmarks to determine an alignment of the first and second fragments of the bone that satisfies a predetermined criteria.
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18. A system for aligning a first fragment and a second fragment of a fractured bone relative to each other, said first and second fragments each having a tracking reference attached thereto, comprising:
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an ultrasound device including a tracking reference; a tracking system configured to spatially track the tracking references; and a computational unit operatively coupled to said tracking system and said ultrasound device, said computational unit comprising a processor and memory, and logic stored in the memory and executable by the processor, said logic including i) logic that identifies at least one landmark on each of the first fragment of the bone and second fragment of bone from imaging data of the fragments of the bone obtained from the ultrasound device, ii) logic that determines a spatial position and/or orientation of each of the identified landmarks from tracking data provided by the tracking system, and iii) logic that uses the determined spatial position and/or orientation of each of the identified landmarks to determine an alignment of the first and second fragments of the bone that satisfies a predetermined criteria. - View Dependent Claims (19, 20)
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Specification