Image-guided fracture reduction
First Claim
Patent Images
1. A method of aligning segments of a fractured bone, comprising:
- attaching a first reference to a first segment of a fractured bone;
recording a position and orientation of the first reference relative to a first datum;
recording a position and orientation of the first segment relative to a second datum;
locating the first segment relative to the first reference;
attaching a second reference to a second segment of a fractured bone;
recording a position and orientation of the second reference relative to a third datum;
recording a position and orientation of the second segment relative to a fourth datum;
locating the second segment relative to the second reference;
attaching a third reference to a reducer operable to align segments of a fractured bone;
recording a position and orientation of the third reference relative to a fifth datum;
locating the reducer relative to the third reference;
inserting the reducer into a medullary canal of the first segment;
aligning the reducer with a representation of the second segment; and
inserting the reducer into a medullary canal of the second segment, wherein the reducer is used to assist aligning the segments of the fractured bone.
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Accused Products
Abstract
Embodiments of the present invention include products and methods for reducing fractures with the aid of image guidance. In one embodiment, products and methods are directed to reduction for the placement of an intramedullary nail.
440 Citations
45 Claims
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1. A method of aligning segments of a fractured bone, comprising:
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attaching a first reference to a first segment of a fractured bone; recording a position and orientation of the first reference relative to a first datum; recording a position and orientation of the first segment relative to a second datum; locating the first segment relative to the first reference; attaching a second reference to a second segment of a fractured bone; recording a position and orientation of the second reference relative to a third datum; recording a position and orientation of the second segment relative to a fourth datum; locating the second segment relative to the second reference; attaching a third reference to a reducer operable to align segments of a fractured bone; recording a position and orientation of the third reference relative to a fifth datum; locating the reducer relative to the third reference; inserting the reducer into a medullary canal of the first segment; aligning the reducer with a representation of the second segment; and inserting the reducer into a medullary canal of the second segment, wherein the reducer is used to assist aligning the segments of the fractured bone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of aligning segments of a fractured bone comprising:
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inserting a reducer operable to aligning segments of a fractured bone into a medullary canal of a first segment of fractured bone; attaching a reference to a second segment of a fractured bone; recording a position and orientation of the reference relative to a first datum. recording a position and orientation of the second segment relative to a second datum; locating the second segment relative to the reference; attaching a reducer reference to the reducer; recording a position and orientation of the reducer reference relative to a third datum; locating the reducer relative to the reducer reference; aligning the reducer with a representation of the second segment; and Inserting the reducer into a medullary canal of the second segment, wherein the reducer is used to assist aligning the segments of the fractured bone. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of aligning segments of a fractured bone, comprising:
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inserting a reducer operable to align segments of a fractured bone into a medullary canal of a first segment of fractured bone; attaching a first reference to the first segment; recording a position and orientation of the first reference relative to a first datum; recording a position and orientation of the first segment relative to a second datum; locating the first segment relative to the first reference; attaching a second reference to a second segment of a fractured bone; recording a position and orientation of the second reference relative to a third datum; recording a position and orientation of the second segment relative to a fourth datum; locating the second segment relative to the second reference; aligning the first segment with a representation of the second segment; and inserting the reducer into a medullary canal of the second segment, wherein the reducer is used to assist aligning the segments of a fractured bone. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A method of aligning segments of a fractured bone comprising:
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inserting a reducer operable to align segments of a fractured bone into a medullary canal of a first segment of fractured bone; attaching a reference to a second segment of a fractured bone; recording a position and orientation of the reference relative to a first datum; recording a position and orientation of the second segment relative to a second datum including detecting at least a portion of the second segment through the skin of a patient; locating the second segment relative to the reference; attaching a reducer reference to the reducer, recording a position and orientation of the reducer reference relative to a third datum; locating the reducer relative to the reducer reference; generating an image that comprises a representation of the second segment and a representation of the reducer; aligning the reducer with the second segment by viewing the generated image and moving the first segment and the reducer relative to the second segment; and Inserting the reducer into a medullary canal of the second segment in order to align the segments.
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45. A system for aligning segments of a fractured bone, comprising:
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a first reference configured to attach to a first segment of a fractured bone; a first datum configured to provide a first relative reference for recording a position and orientation of the first reference; a second datum configured to provide a second relative reference for recording a position and orientation of the first segment; a second reference configured to attach to a second segment of a fractured bone; a third datum configured to provide a third relative reference for recording a position and orientation of the second reference; a fourth datum configured to provide a fourth relative reference for recording a position and orientation of the second segment; a third reference configured to attach to a reducer operable to align segments of a fractured bone; a fifth datum configured to provide a fifth relative reference for recording a position and orientation of the third reference; and a data processing device for locating the first segment relative to the first reference, locating the second segment relative to the second reference, and locating the reducer relative to the third reference.
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Specification