Abstract: The invention relates to a guiding system for a surgical robotic system, comprising a tool guide (11), a tool (30), an intermediate part (60) mounted on the tool (30), and first and second coupling links (21, 22), and presenting: —a first guiding configuration in which the first coupling link (21, 22) couples the intermediate part (60) and the tool guide (11) so that both are mobile relative to each other according to a unique first degree of freedom corresponding to a translation along a tool guide axis (X); and —a second guiding configuration in which the second coupling link (22) couples the intermediate part (60) and the tool guide (11) so that both are mobile relative to each other according to the first degree of freedom and according to at least one additional degree of freedom.

Abstract: The invention relates to a tracking assembly (1) for a surgical robotic system, comprising at least two tracking patterns, wherein at least one of said at least two tracking patterns is adapted to be rotatably mounted relative to a tool guide (2) of the surgical GT robotic system so as to be moveable in rotation around a tool guide axis (X) normal to a reference plane (P), wherein each of said at least two tracking patterns defines a range of visibility substantially directed along a visibility axis, wherein an inclination relative to the reference plane (P) of the visibility axis of a first tracking pattern of the tracking assembly (1) is different from an inclination relative to the reference plane (P) of the visibility axis of a second tracking pattern of the tracking assembly (1).

Abstract: The invention relates to a method for reconstructing a 3D medical image of a region of interest of a patient's body (P) lying on an operating table (200) with an X-ray imaging system comprising a motorized C-arm (100) supporting an X-ray source (101), an X-ray image detector (102) and an anti-collision device (104), comprising: —implementing a first path of the motorized C-arm without acquiring any X-ray image, said first path comprising at least two different angular positions around a rotation axis of the C-arm; —at each angular position of the C-arm along said first path, detecting with the anti-collision device (104) an external surface (S) of the patient's body and recording volumetric data of a patient's body portion enclosing the region of interest; —computing a volumetric model of the patient's body portion based on said volumetric data and on an estimation of X-ray absorption of patient's body tissues surrounding the region of interest, said volumetric model comprising a first part including the regi

Abstract: The invention relates to an X-ray imaging system comprising a mobile base (10), a motorized arm (20), and a C-arm (30) adapted to be mounted on the mobile base (10) by means of the motorized arm (20), wherein the C-arm (30) comprises an X-ray source (31) and an X-ray detector (32), wherein the motorized arm (20) presents at least three rotation axes (Z1, Z2, Z3) directed along a substantially common vertical direction (Z).

Abstract: The invention relates to a system for determining an optimal position of a surgical instrument relative to a patient's bone tracker, the system comprising:—a medical imaging system configured to acquire at least one cone beam computed tomography intraoperative image of the patient;—a localization device;—a computer configured to receive images from the medical imaging system and localization data from the localization device and to implement the following method: the method comprising: ?(a) receiving at least one preoperative 2D X-ray image of the bone while the patient is in a position of interest; ?(b) acquiring an intraoperative 3D medical image of the bone by cone beam computed tomography while the patient is in an operative position different from the position of interest, the 3D image being registered with the coordinate system of the bone tracker; ?(c) registering the intraoperative 3D medical image onto the at least one preoperative 2D X-ray image, so as to obtain a registered 3D image representing th

Abstract: The present invention relates to a method for registration of 2D images of a region of interest of a patient, wherein the images are acquired using an X-ray imaging system and an imaging kit (1) comprising abase (2) and a registration phantom (3), wherein the method comprises the following steps: receiving a first (respectively second) set of 2D X-ray images of at least one first (respectively second) portion of a region of interest, said first and second sets of images comprising each at least two 2D images containing each at least one detectable radiopaque fiducial of the registration phantom (3); registering the first (respectively second) set of images in the coordinate system of the registration phantom in the first (respectively second) phantom fixation position; registering the first and second sets of 2D images in the coordinate system of the base.

Abstract: Disclosed is a surgical robotic system comprising a robotic arm holding an end-effector and a control unit for controllably moving the robotic arm and maintaining the end-effector in at least one target position relative to a patient. The control unit can, based on a first input continuously applied onto the robotic arm, activate a hand guiding mode wherein the robotic arm is freely movable by the user; based on a second input different from the first input, continuously applied onto the robotic arm, activate a computed trajectory mode wherein the robotic arm moves to a target position according to a computed trajectory; when the computed trajectory is activated, detect that the end-effector meets a predetermined safety condition and automatically switch to a servo-controlled mode wherein the robotic arm is automatically movable to maintain the end-effector in the target position relative to a tracker attached to the patient.

Abstract: A device, as disclosed, may be suitable for use with a tomographic imager comprising an X-ray source and a plane detector that are movable in rotation. The device (e.g., radiopaque device) includes a registration phantom that includes several radiopaque markers and that is placeable along a part of the spine of a patient at a predetermined distance from a volume of interest to be imaged. Several radiopaque screens, integral with the registration phantom, include a lower face, an internal face oriented toward the registration phantom, and an external face oriented toward the X-ray source (410), respectively towards the detector. The radiopaque device is configured so that, when it is placed on the back of a patient, at least part of the X-rays that pass from the X-ray source to the plane detector through the registration phantom see their intensity attenuated by passing through the radiopaque screens.

Abstract: A modular fluoro-navigation instrument including a base made of a substantially radiotransparent material. The base is intended to be rigidly secured to a patient's bone and a tracker rigidly attachable to the base. The instrument has a registration phantom separate from the tracker which includes a plurality of radiopaque fiducials. The base and the registration phantom includes respective attachment members for reproducibly attaching the registration phantom to the base.

Abstract: A fluoro-navigation system for navigating a tool relative to a medical image. The system includes a motorized X-ray imaging system for acquiring a plurality of images of a region of interest of a patient, the position of each image being known. Also included is a localization system, a registration phantom with a plurality of radiopaque fiducials, a tracker for being tracked by the localization system, a processor for receiving the plurality of images and for reconstructing a 3D medical image from the images using radiopaque fiducials visible in the plurality of images. Also included is base made of a substantially radiotransparent material, to be rigidly secured to a patient's bone and having a reproducible fixation system for attaching the registration phantom and/or tracker.

Abstract: The invention relates to a device for minimally invasive attachment of a tracker (20) and/or a registration phantom (30) to a patient's bone, comprising a base (10) made of a substantially radiotransparent material, characterized in that the base (10) comprises: a support surface (11) intended to face the bone, a plurality of non-parallel through holes (14) for passing a respective percutaneous pin (2) through the base (10); at least one slot (15) extending from an edge of the base (10) in a direction transversal to the through holes (14), said slot (15) passing throughout the base (10) until the support surface (11) and being intended to engage a percutaneous pin (2) implanted into the patient's bone so as to allow the base (10) to slide along said pin (2); and a reproducible fixation system for attaching the tracker (20) and/or the registration phantom (30) to the base.