Patents by Inventor Stéphane Lavallée
Stéphane Lavallée has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190086573Abstract: A method for detecting an anomaly, associated with a magnetic locating device including a first magnetic element and a second magnetic element that are associated with a first object and with a second object, respectively. The first object includes a first movement sensor configured to determine a first datum dependent on inclination of the first object in a basic reference frame, or the terrestrial reference frame. The method includes: determining the first datum from the first movement sensor; determining a second datum dependent on inclination of the second object in the basic reference frame; determining at least one orientation parameter with the magnetic locating device using the first and second magnetic elements; using the at least one orientation parameter and the first and second data to generate an indicator of presence of the anomaly.Type: ApplicationFiled: March 9, 2017Publication date: March 21, 2019Applicants: COMMISARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, MINMAXMEDICALInventors: Saifeddine ALOUI, Francois BERTRAND, Mickael CHAVE, Stephane LAVALLEE
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Patent number: 10166002Abstract: A computerized bone motion tracking system according to one exemplary embodiment is configured to: provide a non-invasive means for accurate measurement and tracking of the motion of a bone using a volumetric ultrasound transducer and a three dimensional position measurement system; provide relative measurements of one bone relative to another bone of a joint; decompose relative joint motion into specific components; and measure joint instability and range of motion.Type: GrantFiled: July 8, 2014Date of Patent: January 1, 2019Assignee: OMNIlife science, Inc.Inventors: Jonathan Schers, Christopher Plaskos, Stephane Lavallee, Jocelyne Troccaz
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Publication number: 20180311011Abstract: 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.Type: ApplicationFiled: October 14, 2016Publication date: November 1, 2018Inventors: Laurence VAN BEEK, David ARMAND, Arnaud PIERRE, Herve COLLET, Elie FOURNIER, Stephane LAVALLEE
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Patent number: 10105145Abstract: The invention relates to a method for constructing a patient-specific surgical guide comprising at least one contact element comprising a contact surface intended to match an anatomical structure to be treated in view of implantation of an implant and at least one guiding element for guiding a surgical instrument to treat said anatomical structure, said method comprising: receiving a non-segmented 3D medical image of the anatomical structure of the patient; determining, in said non-segmented 3D medical image, anatomical references of the patient; based on said anatomical references, positioning an implant model in the non-segmented 3D medical image; adjusting at least one of: a type, a size, a position and an orientation of the implant model with respect to the anatomical structure in the non-segmented 3D medical image; recording planning data including said adjusted type, size, position and orientation of the implant model; using a patient-specific surgical guide adapted to carry out implantation of the iType: GrantFiled: March 24, 2015Date of Patent: October 23, 2018Assignee: ORTHOTAXYInventor: Stephane Lavallee
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Publication number: 20180296278Abstract: The invention relates to a fluoro-navigation system for navigating a tool relative to a medical image, comprising: a motorized X-ray imaging system adapted to acquire a plurality of images of a region of interest of a patient, the position of each image being known in a referential of the imaging system, a localization system; a registration phantom (30) comprising a plurality of radiopaque fiducials (31); a tracker (20) adapted for being tracked by the localization system; a processor configured for receiving the plurality of images acquired by the motorized X-ray imaging system and for reconstructing a 3D medical image from said images using radiopaque fiducials (31) visible in the plurality of images; a base (10) made of a substantially radiotransparent material, the base (10) being adapted to be rigidly secured to a patient's bone (B) and comprising a reproducible fixation system for attaching said registration phantom (30) and/or said tracker (20).Type: ApplicationFiled: October 14, 2016Publication date: October 18, 2018Inventors: Laurence VAN BEEK, David ARMAND, Arnaud PIERRE, Herve COLLET, Elie FOURNIER, Stephane LAVALLEE
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Publication number: 20180289346Abstract: The invention relates to a method for controlling movement of a motorized C-arm, comprising: receiving position information of a user (U) relative to the C-arm (1), continuously receiving current position information of the C-arm (1) relative to a reference position of the C-arm, from said current position information and from the position information of the user, computing a graphical representation of the current position of the C-arm according to the user's point of view, from the computed graphical representation of the current position of the C-arm, computing a graphical representation of at least one command button suited to the current position information of the C-arm and to the user's point of view to move the C-arm in a determined direction according to a respective degree of freedom, displaying on a control panel a graphical user interface (7) comprising said computed representation (70) of the current position of the C-arm and said at least one command button (710).Type: ApplicationFiled: October 6, 2016Publication date: October 11, 2018Applicant: SURGIVISIOInventors: Laurence VAN BEEK, David ARMAND, Arnaud PIERRE, Stephane LAVALLEE, Markus FLEUTE
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Patent number: 10092305Abstract: The invention relates in particular to a system for attaching a first bone segment to a second bone segment, the two segments belonging to the same bone, in which the first and second segments are held together via a hinge resulting from the partial transverse cutting of said bone, characterized by the fact that said system comprises: two targets suitable for attaching to the two segments of said bone; a navigation system suitable for acquiring the three-dimensional positions and orientations of the targets; —a processing system suitable for calculating, based on the data sent from the navigation system, the angles corresponding to the three-dimensional alignment of said two segments; a display unit suitable for displaying the information to the surgeon; at least one milling guide; a plurality of implants of different sizes.Type: GrantFiled: July 26, 2013Date of Patent: October 9, 2018Assignee: OSTESYSInventors: Guillaume Dardenne, Pierre-Yves Huet, Stephane Lavallee, Christian Lefevre, Eric Stindel, Romain Gerard
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Patent number: 10092265Abstract: The present invention relates to a method for reconstructing a 3D image from 2D X-ray images acquired with an X-ray imaging system, said method comprising the steps of: a) receiving a set of 2D X-ray images of a region of a patient with said X-ray imaging system, b) computing an initial 3D image within the coordinate system of the X-ray imaging system by using at least part of said 2D X-ray images with their respective projective geometry data; c) projecting said initial 3D image on at least part of said 2D X-ray images and adjusting the respective projective geometry data of said images, said adjustment comprising registration of said images with the projection of the initial 3D image using an image-to-image registration technique; d) computing an updated 3D image using the complete set of 2D X-ray images with their respective adjusted projective geometry data.Type: GrantFiled: February 21, 2017Date of Patent: October 9, 2018Assignee: SURGIVISIOInventors: Stephane Lavallee, Markus Fleute, Laurence Van Beek
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Publication number: 20180280092Abstract: The invention relates to a modular fluoro-navigation instrument (1) comprising: a base (10) made of a substantially radiotransparent material, the base being intended to be rigidly secured to a patient's bone (B); a tracker (20) rigidly attachable to the base (10); characterized in that said instrument further comprises a registration phantom (30) separate from the tracker (20) comprising a plurality of radiopaque fiducials (31) and in that the base (10) and the registration phantom (30) comprise respective fixation means (12, 32) for reproducibly attaching the registration phantom to the base.Type: ApplicationFiled: October 14, 2016Publication date: October 4, 2018Inventors: Laurence VAN BEEK, David ARMAND, Arnaud PIERRE, Herve COLLET, Elie FOURNIER, Stephane LAVALLEE
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Patent number: 10085709Abstract: The present invention relates to a method for reconstructing a 3D image from 2D X-ray images acquired with an X-ray imaging system, said method comprising the steps of: a) receiving a set of 2D X-ray images of a region of a patient with said X-ray imaging system, b) computing an initial 3D image within the coordinate system of the X-ray imaging system by using at least part of said 2D X-ray images with their respective projective geometry data; c) projecting said initial 3D image on at least part of said 2D X-ray images and adjusting the respective projective geometry data of said images, said adjustment comprising registration of said images with the projection of the initial 3D image using an image-to-image registration technique; d) computing an updated 3D image using the complete set of 2D X-ray images with their respective adjusted projective geometry data.Type: GrantFiled: February 21, 2017Date of Patent: October 2, 2018Assignee: SURGIVISIOInventors: Stephane Lavallee, Markus Fleute, Laurence Van Beek
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Publication number: 20180085133Abstract: The invention relates to a patient-specific surgical guide (200) comprising: at least one guiding element (202a, 202b) for guiding a surgical instrument to treat a subcutaneous anatomical structure (100, 101) of the patient, and a first patient-specific contact element (201) comprising a first patient-specific contact surface (2010) intended to fit a portion of said subcutaneous anatomical structure (100, 101), said at least one patient-specific contact surface (2010) being rigidly connected to the at least one guiding element (202a, 202b), said patient-specific surgical guide being characterized in that it further comprises; at least one second patient-specific contact element (203) distant from the first patient-specific contact element (201), comprising at least one support element (203b) suitable for supporting a percutaneous pin or needle (205) whose tip is intended to contact a point (103) of said subcutaneous anatomical structure or of an anatomical structure rigidly connected to said subcutaneous anatType: ApplicationFiled: April 18, 2016Publication date: March 29, 2018Inventors: Stephane Lavallee, Nicolas DEMANGET, Jean-Michel POIRIER
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Patent number: 9867585Abstract: The invention relates to a method for optimally visualizing a morphologic region of interest of a bone in an X-ray image of a patient, comprising: —receiving a set of 3D medical images of the bone, —creating a 3D bone model of at least part of the bone comprising said region of interest from said set of 3D images, —determining a criterion representative of a visualization of the extent of said morphologic region of interest, —automatically determining from the 3D bone model optimal relative bone and X-ray orientation so as to optimize said criterion for said patient, —creating at least one virtual X-ray image of the bone from said set of 3D images according to said optimal relative bone and virtual X-ray orientation.Type: GrantFiled: October 8, 2014Date of Patent: January 16, 2018Assignees: Smith & Nephew, Inc., A2 SurgicalInventors: Sean Scanlan, Stéphane Lavallee, Laurence Chabanas, Asheesh Bedi, Thomas Byrd, Bryan Kelly, Christopher Larson
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Publication number: 20170348008Abstract: A device for positioning a cutting guide with respect to a bone comprising a body forming the cutting guide or intended to be fixed to the cutting guide; a least two contact members intended to freely contact the bone; and adjustment means for individually varying the relative position of the body with respect to each contact member.Type: ApplicationFiled: August 21, 2017Publication date: December 7, 2017Applicant: OMNIlife science, Inc.Inventors: Stephane Lavallee, Fabrice Bertrand, Anthony Boyer, Christopher Plaskos
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Patent number: 9795319Abstract: 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.Type: GrantFiled: November 12, 2013Date of Patent: October 24, 2017Assignee: IMACTISInventors: Stephane Lavallee, Lionel Carrat
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Patent number: 9743936Abstract: The invention relates to a surgical method of attachment of a first bony segment in relation with a second bony segment, both segments belonging to a same bone, which comprises the steps of: milling said bone and cutting it partially, to separate it in two bony segments linked together by a bony hinge distracting both bony segments around said hinge; fitting an osteotomy implant into the cavity thus obtained; attaching said implant to both bony segments; wherein it comprises the preoperative steps of: determining the position and the direction of the future partial cut, calculating its depth, calculating the relative three-dimensional positions of both bony segments to obtain the final desired alignment of the two bony segments, choosing among several osteotomy implants, one which is wider than the largest distance between the facing sides of said bony segments after distraction, determining the position and the shape of the future implant reception cavity and calculating its dimensions, deducing therefromType: GrantFiled: March 11, 2014Date of Patent: August 29, 2017Assignee: MINMAXMEDICALInventors: Pierre-Yves Huet, Stephane Lavallee
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Publication number: 20170238999Abstract: 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 andType: ApplicationFiled: October 19, 2015Publication date: August 24, 2017Applicant: IMACTISInventors: Stephane LAVALLEE, Lionel CARRAT, Florence BILLET
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Patent number: 9737311Abstract: A device for positioning a cutting guide with respect to a bone comprising a body forming the cutting guide or intended to be fixed to the cutting guide; a least two contact members intended to freely contact the bone; and adjustment means for individually varying the relative position of the body with respect to each contact member.Type: GrantFiled: March 18, 2014Date of Patent: August 22, 2017Assignee: OMNIlife science, Inc.Inventors: Stéphane Lavallee, Fabrice Bertrand, Anthony Boyer, Christopher Plaskos
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Publication number: 20170224426Abstract: 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.Type: ApplicationFiled: October 19, 2015Publication date: August 10, 2017Applicant: IMACTISInventors: Stephane LAVALLEE, Lionel CARRAT
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Publication number: 20170224427Abstract: 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.Type: ApplicationFiled: October 19, 2015Publication date: August 10, 2017Inventors: Stephane LAVALLEE, Lionel CARRAT, Ivan BRICAULT
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Publication number: 20170224419Abstract: The invention relates to a system for planning the introduction of a needle in a patient's body, comprising: a needle guide (3) intended to be coupled to a needle (2); a navigation system configured for tracking the needle guide (3) with respect to a 3D medical image of the patient; a processor configured for determining a virtual position and orientation of the needle (2) with respect to the 3D image (1) using navigation data of the needle guide (3), for detecting at least one inserted needle (2?; 2a?, 2b?, 2c?) as a trace in the 3D medical image (1) and for computing a distance between the virtual needle (2) and the detected needle (2?; 2a?, 2b?, 2c?); a display coupled to the processor for displaying a representation of the virtual needle (2) and a representation of the computed distance between the virtual needle and the at least one detected needle (2?; 2a?, 2b?, 2c?).Type: ApplicationFiled: October 19, 2015Publication date: August 10, 2017Inventors: Lionel CARRAT, Stephane LAVALLEE, Ivan BRICAULT, Florence BILLET, Patrick-Denis SIMONOVICI, Agnes LABADIE