Abstract: The invention relates to a medical system for use in interventional radiology, adapted to be coupled to a navigation system, comprising: a needle (1) to be inserted into a patient's body toward a target, said needle comprising a distal tip (10) and a proximal stop (110); a needle guide (2), the needle (1) being able to slide within said guide (2) along a longitudinal axis thereof, said needle guide (2) comprising a tracker for navigating the needle guide (2) with respect to a 3D medical image of a patient; a processor configured to detect a contact between the needle guide (2) and the proximal stop (110) and to determine, from navigation data of the needle guide when said needle guide (2) is in contact with the proximal stop (110) of the needle and from the length of said needle, a position of the distal needle tip (10) with respect to the 3D medical image; and a user interface coupled to said processor and configured to display, on at least one image (I) of the patient, a representation of the needle and

Abstract: The invention relates to a system for navigating a surgical instrument (1), comprising a processor configured for: obtaining a first 3D medical image of a first volume (V1) of a patient's body, said first volume (V1) comprising a reference marker (M), registering the first 3D image with said reference marker (M), obtaining a second 3D medical image of a second volume (V2) of the patient's body, said second volume (V2) being different from the first volume (V1) and not containing the reference marker (M) in its entirety, said first and second 3D images being obtained by a single imaging device, registering the second 3D medical image with the first 3D medical image, obtaining a virtual position of the surgical instrument (1) with respect to the reference marker (M) from a tracking system, determining a virtual position of the surgical instrument (1) with respect to the second 3D medical image.

Abstract: The invention relates to a method for displaying the position and orientation of a linear instrument (1) navigated with respect to a 3D medical image (V), wherein: said linear instrument (1) is coupled to a guide (2); the guide (2) is tracked by a navigation system with respect to the 3D image (V); a plane (4) containing the axis of the linear instrument (1) is virtually attached to the guide (2); a slice reformatted in the 3D image and containing said plane (4) is displayed. Another object of the invention is a system for carrying out said method.

Abstract: The invention relates to a method of navigation of a tool to be used in a surgical operation for treating a target region within the body of a patient.

Abstract: The invention relates to a medical system for use in interventional radiology, adapted to be coupled to a navigation system, comprising: a needle (1) to be inserted into a patient's body toward a target, said needle comprising a distal tip (10) and a proximal stop (110); a needle guide (2), the needle (1) being able to slide within said guide (2) along a longitudinal axis thereof, said needle guide (2) comprising a tracker for navigating the needle guide (2) with respect to a 3D medical image of a patient ; a processor configured to detect a contact between the needle guide (2) and the proximal stop (110) and to determine, from navigation data of the needle guide when said needle guide (2) is in contact with the proximal stop (110) of the needle and from the length of said needle, a position of the distal needle tip (10) with respect to the 3D medical image; and a user interface coupled to said processor and configured to display, on at least one image (I) of the patient, a representation of the needle and

Abstract: The invention relates to a method for displaying the position and orientation of a linear instrument (1) navigated with respect to a 3D medical image (V), wherein: said linear instrument (1) is coupled to a guide (2); the guide (2) is tracked by a navigation system with respect to the 3D image (V); a plane (4) containing the axis of the linear instrument (1) is virtually attached to the guide (2); a slice reformatted in the 3D image and containing said plane (4) is displayed. Another object of the invention is a system for carrying out said method.

Abstract: The present invention relates to a device and a method for determining the position of an instrument with respect to medical images of a body. The device comprises (1) a calibration support comprising a set of fiducial markers visible on medical images and fixed to the skin of a body, (2) at least one micro-camera providing video images and mounted on the calibration support in a known position, and (3) a processing unit connected to the micro-cameras and configured to process the video images from said micro-cameras to determine the position of the instrument with respect to medical images.

Abstract: The invention relates to a method of navigation of a tool to be used in a surgical operation for treating a target region within the body of a patient.

Abstract: The invention relates to a method of navigation of a tool to be used in a surgical operation for treating a target region within the body of a patient.

Abstract: The present invention relates to a device and a method for determining the position of an instrument with respect to medical images of a body. The device comprises (1) a calibration support comprising a set of fiducial markers visible on medical images and fixed to the skin of a body, (2) at least one micro-camera providing video images and mounted on the calibration support in a known position, and (3) a processing unit connected to the micro-cameras and configured to process the video images from said micro-cameras to determine the position of the instrument with respect to medical images.

Abstract: The invention relates to a method of navigation of a tool to be used in a surgical operation for treating a target region within the body of a patient.