Pelvic registration device for medical navigation
AssigneeBrainlab AG
InventorStefan Henning
Life of this patent
Estimating the term…
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.
Claims15
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 each one of the positioning elements is laterally spaced apart from and laterally movable relative to another one of the positioning elements 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.
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 each one of the positioning elements is laterally spaced apart from and laterally movable relative to another one of the positioning elements 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:
- 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.
Dependencies are inferred from the claim text.