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1. 发明公开

EP4391947A1 SYSTEM FOR GUIDING AN OSTEOTOMY PROCEDURE 审中-实审
公开(公告)号：EP4391947A1
公开(公告)日：2024-07-03
申请号：EP22768778.7
申请日：2022-08-23
申请人： Ostesys
发明人： FONTAINE, Sylvain , LONJARET, Thomas , CHANRION, Marie-Anne
IPC分类号： A61B34/20 , A61B34/10 , A61B90/00
CPC分类号： A61B34/20 , A61B2034/206820160201 , A61B2034/205520160201 , A61B2034/205120160201 , A61B2034/204820160201 , A61B2090/37620130101 , A61B2034/10520160201

2. 发明公开

EP4140435A1 NAVIGATION SYSTEM FOR GUIDING AN OSTEOTOMY PROCEDURE 无效
公开(公告)号：EP4140435A1
公开(公告)日：2023-03-01
申请号：EP21306136.9
申请日：2021-08-23
申请人： Ostesys
发明人： FONTAINE, Sylvain , LONJARET, Thomas , CHANRION, Marie-Anne
IPC分类号： A61B34/20 , A61B34/10 , A61B90/00
摘要： The present disclosure relates to a navigation system for guiding an osteotomy procedure on a tibia and/or a femur pertaining to a patient's lower limb to correct a misalignment of said lower limb, wherein a tibial tracker is fixed to the tibia and a femoral tracker is fixed to the femur, said system comprising a control unit configured to be coupled to a localization system adapted to track a position and orientation of the tibial tracker and the femoral tracker, wherein the control unit is configured to:
- receive at least one target alignment parameter of the lower limb provided by a user;
- determine a position of a set of characteristic points on the tibia and/or the femur relative to the tibial tracker and/or the femoral tracker;
- track the positions of said characteristic points relative to the tibial tracker and/or the femoral tracker based on localization data of the set of characteristic points during application of mechanical constraints by the user onto the patient's knee, said tracked positions forming a knee measurement data set;
- based on the knee measurement data set, adjust a function defining a model of the patient's knee;
- based on at least one output of said function and on the at least one alignment parameter of the lower limb in the constrained position, determine at least one correction parameter of the osteotomy procedure to be applied to the lower limb to achieve the target alignment parameter.

3. 发明公开

EP4312852A1 METHOD FOR LOCATING OBJECT(S) IN PARTICULAR FOR OPTIMAL LOWER LIMB SURGERY PLANNING USING X-RAY IMAGES 审中-实审
公开(公告)号：EP4312852A1
公开(公告)日：2024-02-07
申请号：EP22716409.2
申请日：2022-03-22
申请人： Ostesys
发明人： CHANRION, Marie-Anne , DELMON, Vivien , FONTAINE, Sylvain
IPC分类号： A61B34/10

4. 发明公开

EP4452115A1 COMPUTER-ASSISTED METHOD AND SYSTEM FOR PLANNING AN OSTEOTOMY PROCEDURE 失效
公开(公告)号：EP4452115A1
公开(公告)日：2024-10-30
申请号：EP22843215.9
申请日：2022-12-20
申请人： Ostesys
发明人： CHANRION, Marie-Anne , FONTAINE, Sylvain , LONJARET, Thomas
IPC分类号： A61B34/10 , A61B17/80
CPC分类号： A61B34/10 , A61B34/20 , A61B2034/10420160201 , A61B2034/10520160201 , A61B2034/206820160201 , A61B2017/56520130101

5. 发明公开

EP4197474A1 METHOD AND SYSTEM FOR PLANNING AN OSTEOTOMY PROCEDURE 无效
公开(公告)号：EP4197474A1
公开(公告)日：2023-06-21
申请号：EP21306855.4
申请日：2021-12-20
申请人： Ostesys
发明人： CHANRION, Marie-Anne , FONTAINE, Sylvain , LONJARET, Thomas
IPC分类号： A61B34/10 , A61B17/80
摘要： The present disclosure relates to a method for planning an osteotomy procedure on at least one bone selected from a tibia and a femur of a patient's lower limb to correct a misalignment of said lower limb, in which said bone is to be partially cut into two bone portions articulated by a hinge zone, said bone portions are to be distracted or closed until a deformed configuration of the bone and an implant is to be screwed to said bone portions to maintain the bone in said deformed configuration, comprising:
- obtaining an at least partial 3D model of the tibia and/or the femur and a 3D model of the implant;
- receiving at least one user input comprising at least one target alignment parameter;
- based on the at least partial 3D model of each bone and the at least one user input, implementing a dynamic simulation of each cut and of distraction or closing of the bone portions to compute a deformed model of each bone to be cut resulting from the simulated cut(s) and distraction or closing;
- based on the deformed bone model(s) and the at least partial 3D model of the implant, computing an optimal placement of the implant onto the deformed bone.

6. 发明公开

EP4140434A1 NAVIGATION SYSTEM FOR GUIDING AN OSTEOTOMY PROCEDURE 无效
公开(公告)号：EP4140434A1
公开(公告)日：2023-03-01
申请号：EP21306135.1
申请日：2021-08-23
申请人： Ostesys
发明人： LONJARET, Thomas , FONTAINE, Sylvain , CHANRION, Marie-Anne
IPC分类号： A61B34/20 , A61B17/56 , A61B34/10 , A61B90/00
摘要： The present disclosure relates to a navigation system for guiding an osteotomy procedure on a tibia and/or a femur pertaining to a patient's lower limb to correct a misalignment of said lower limb, wherein a tibial tracker is fixed to the tibia and a femoral tracker is fixed to the femur, said system comprising a control unit configured to be coupled to a localization system adapted to track a position and orientation of the tibial tracker and the femoral tracker, wherein the control unit is configured to:
- receive at least one target alignment parameter of the lower limb provided by a user;
- determine a position of a set of characteristic points on the tibia and/or the femur relative to the tibial tracker and/or the femoral tracker;
- track the positions of said characteristic points relative to the tibial tracker and/or the femoral tracker based on localization data of the set of characteristic points during application of mechanical constraints by the user to bring the lower limb in a constrained position simulating laxities and/or soft tissues influence,
- determine at least one alignment parameter of the lower limb in said constrained position, based on the positions of the characteristic points;
- based on the at least one target alignment parameter and on the at least one alignment parameter of the lower limb in the constrained position, determine at least one correction parameter of the osteotomy procedure to be applied to the lower limb to achieve the target alignment parameter.

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