摘要:
A method for tracking trackable objects using a medical tracking device, the tracking device being a camera or an EM transmitter, during a medical workflow comprising a plurality of workflow steps, wherein each trackable object has at least one marker and the method comprises the steps of: —acquiring a set of camera positions, wherein each tracking device position is associated with at least one workflow step; —identifying a workflow; —sequentially and automatically moving the tracking device to the camera positions associated with the workflow steps; and—performing a tracking step only when the tracking device is in a fixed position.
摘要:
A system (1), in particular for image-guided surgery, comprising: at least two display devices (2, 3); a position de-terminator (8) for determining the relative position of the display devices; and an image generator (9) for generating images, which are to be displayed by the display devices, in accordance with the determined relative position.
摘要:
A method of determining the position of a medical device to be localized, comprising: a) acquiring main position data comprising reference structure position information which describes the position of a reference structure in a global coordinate system, the main position data having been gathered by a main detection device; b) acquiring supplement position data comprising relative position information which describes the position of the medical device relative to the position of the reference structure in a reference coordinate system, the supplement position data having been gathered by a supplement detection device; c) determining, based on the relative position information and the reference structure position information, medical device position data comprising medical device position information which describes the position of the medical device in the global coordinate system.
摘要:
The invention is in particular directed to a data processing method for use in computer-assisted surgery, comprising the following steps: a) providing marker data which describe a spatial arrangement of at least one marker device and/or a change in a relative spatial arrangement of at least two marker devices (5, 6, 7); b) providing condition data which describe a condition for the spatial arrangement of at least one marker device and/or a condition for the change in the relative spatial arrangement of the at least two marker devices (5, 6, 7); and c) controlling a control flow of the data processing method on the basis of the marker data and the condition data.
摘要:
A method of determining the position of a medical device to be localized, comprising: a) acquiring main position data comprising reference structure position information which describes the position of a reference structure in a global coordinate system, the main position data having been gathered by a main detection device; b) acquiring supplement position data comprising relative position information which describes the position of the medical device relative to the position of the reference structure in a reference coordinate system, the supplement position data having been gathered by a supplement detection device; c) determining, based on the relative position information and the reference structure position information, medical device position data comprising medical device position information which describes the position of the medical device in the global coordinate system.
摘要:
The invention is in particular directed to a data processing method for use in computer-assisted surgery, comprising the following steps: a) providing marker data which describe a spatial arrangement of at least one marker device and/or a change in a relative spatial arrangement of at least two marker devices (5, 6, 7); b) providing condition data which describe a condition for the spatial arrangement of at least one marker device and/or a condition for the change in the relative spatial arrangement of the at least two marker devices (5, 6, 7); and c) controlling a control flow of the data processing method on the basis of the marker data and the condition data.
摘要:
A patient positioning system associated with an electromagnetic field generator includes a patient fixation unit for fixing a patient or a part of the patient's body so as to be immobile with respect to the patient positioning system. The patient fixation unit and the electromagnetic field generator are installed so as to retain their position with respect to each other. A method for navigating a patient or a part of the patient's body by means of a medical navigation system is provided, wherein the patient or part of the patient's body is positioned by such a patient positioning system.
摘要:
The invention relates to a calibration method for an axially determinate medical instrument, wherein: the instrument, which is situated within the localization range of a medical tracking system, is positioned such that it can be rotated about its spatially fixed or spatially determinate axis; the instrument is rotated about the axis, wherein a reference which is situated on the instrument or is arranged on and/or fastened to the instrument such that it is spatially fixed relative to the instrument comes to rest at at least two positions; the at least two positions are spatially determined with the aid of the tracking system; the axis of the instrument is spatially determined from the determined positions; and wherein the axis thus determined is assigned to the tracked instrument.
摘要:
A method and device for reciprocally assigning a spatial position of a patient and/or a part of a patient's body and an acquired, stored patient data set includes producing at least two video image recordings of the patient and/or part of the body from different recording positions via at least one video image source, wherein a three-dimensional position and/or orientation of the video image source relative to a reference coordinate system is known or can be determined. Corresponding tuples of points are identified in the video image recordings, and three-dimensional spatial positions are ascertained and stored from the identified tuples of points. The stored patient data set are matched to a point set of the assigned spatial positions, and a reciprocal assignment or registration of the spatial position of the patient and/or part of the body and the patient data set is determined when the greatest or best match has been achieved.
摘要:
The invention relates to a patient positioning system (10) associated with an electromagnetic field generator (1) of an electromagnetic tracking system, wherein: the system comprises a patient fixation unit (3, 5) for fixing a patient or a part of the patient's body so as to be immobile with respect to the patient positioning system; and the fixation unit (3,5) and the field generator (1) are installed so as to retain their position with respect to each other. It also relates to a method for navigating a patient or a part of the patient's body by means of a medical navigation system using an electromagnetic tracking system, wherein the patient or part of the patient's body is positioned by such a patient positioning system (10).