Brainlab Ag

Fritz Vollmer

Johannes Manus

Gregor Tuma

Michael Gschwandtner

Markus Bartenstein

Robert Schmidt

Alexander Druse

Alexander Urban

Martin Leidel

Manuel Hoever

Ingmar Thiemann

Troels Frimor

A data processing method for calculating the contact position of a medical ultrasound transceiver on the head of a patient, comprising the steps of: a) acquiring ROI data which represent a region of interest (ROI) corresponding to at least a part of a vessel in a vascular structure; b) acquiring contact region data which represent a contact region for the ultrasound transceiver on the head, wherein the contact region corresponds to one or more acoustic windows; c) determining at least one target point in the region of interest; d) determining at least two entry points on the contact region; e) calculating a set of lines which comprises the lines between the two points of each respective possible pair consisting of one entry point and one target point; f) eliminating lines which pass through a bony structure other than the bone immediately beneath the contact region; g) calculating a score for each of the remaining lines; and h) selecting the entry point of the line with the highest score as the contact position of the ultrasound transceiver.

Method and apparatus for calculating the contact position of an ultrasound probe on a head

The present invention relates to a method for calibrating a projection device, in particular a hand-held projection device, in a navigational environment for medical purposes, comprising the steps of: The present invention also relates to a calibration device () for automatically calibrating a projection device (), said calibration device () comprising a reference array () and a detection device () which is coupled to the reference array (), in particular in a predetermined position, wherein the detection device () is configured to detect light, and to a self-calibrating projection device system comprising the calibration device () and a projection device () which is configured to generate a known projection () comprising an area () which is configured to stimulate a detection device () of the calibration device ().

Method and device for calibrating a projection device

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: &#x2014;acquiring a set of camera positions, wherein each tracking device position is associated with at least one workflow step; &#x2014;identifying a workflow; &#x2014;sequentially and automatically moving the tracking device to the camera positions associated with the workflow steps; and&#x2014;performing a tracking step only when the tracking device is in a fixed position.

Method and system for medical tracking using a plurality of camera positions

A system, in particular for image-guided surgery, comprising: at least two display devices; a position determinator for determining the relative position of the display devices; and an image generator for generating images, which are to be displayed by the display devices, in accordance with the determined relative position.

Generating images for at least two displays in image-guided surgery

The invention relates to a medical image registration method in which an actual patient's body or portion of a patient's body () is positionally registered to a patient image created using a medical body-imaging technique such as MR, CT or x-ray imaging, wherein in a medical navigation system, the actual spatial position of at least a part of the body or body portion () is assigned to a respective position in the image of said body or body portion (), wherein the part of the body or body portion () comprises a registration area in the form of the surface of a substantially rigid body structure, in particular an inner structure, made of bone or cartilage. The invention also relates to a medical image registration device which comprises a surface scanner () for scanning a registration area comprising the surface of a substantially rigid body structure, in particular an inner structure, made of bone or cartilage.

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Munich, Germany

Fritz Vollmer