PELVIC REGISTRATION DEVICE FOR MEDICAL NAVIGATION
First Claim
1. A device for registering in a medical navigation system a position and/or orientation of a patient'"'"'s pelvis, comprising:
- a pelvic registration frame;
a plurality of positioning elements arranged on the pelvic registration frame, wherein the plurality of positioning elements are movable with respect to each other to enable placement of the positioning elements at defined pelvic points of the patient'"'"'s pelvis; and
at least one position transmitter arranged in an unambiguously defined position and/or orientation relative to the pelvic registration frame.
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Accused Products
Abstract
A device for registering in a medical navigation system a position and/or orientation of a patient'"'"'s pelvis includes a pelvic registration frame. A plurality of positioning elements are arranged on the pelvic registration frame so as to define a plane, wherein the plurality of positioning elements are movable with respect to each other to enable placement of the positioning elements at defined pelvic points of the patient'"'"'s pelvis. At least one position transmitter is arranged in an unambiguously defined position and/or orientation relative to the frame.
36 Citations
15 Claims
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1. A device for registering in a medical navigation system a position and/or orientation of a patient'"'"'s pelvis, comprising:
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a pelvic registration frame;
a plurality of positioning elements arranged on the pelvic registration frame, wherein the plurality of positioning elements are movable with respect to each other to enable placement of the positioning elements at defined pelvic points of the patient'"'"'s pelvis; and
at least one position transmitter arranged in an unambiguously defined position and/or orientation relative to the pelvic registration frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for registering in a medical navigation system a position and/or orientation of a patient'"'"'s pelvis using a pelvic registration device including a) a pelvic registration frame, b) a plurality of positioning elements arranged on the pelvic registration frame, wherein the plurality of positioning elements are movable with respect to each other to enable placement of the positioning elements at defined pelvic points of the patient'"'"'s pelvis, and c) at least one position transmitter arranged in an unambiguously defined position and/or orientation relative to the frame, said method comprising:
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attaching a trackable device to the patient'"'"'s pelvis;
placing each of said plurality of positioning elements on a corresponding pelvic point of the defined pelvic points;
obtaining x-ray images of the patient'"'"'s pelvis and the pelvic registration device, and storing a location of the trackable device as the images are obtained;
determining a plane of the registration frame based on a detected position of the at least one position transmitter; and
calculating the position and/or orientation of the patient'"'"'s pelvis based on the determined plane relative to the trackable device.
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Specification