公开(公告)号：US20230404680A1

公开(公告)日：2023-12-21

申请号：US18240867

申请日：2023-08-31

Applicant: Brainlab AG

Inventor： Oliver FLEIG ,  Timo NEUBAUER ,  Mario SCHUBERT ,  Sabine KLING

IPC: A61B34/20

CPC classification number: A61B34/20 ,  A61B2034/2048 ,  A61B2034/2055 ,  A61B2034/2051 ,  A61B2090/502

Abstract: The present invention relates to a method for determining the spatial position of objects, in particular objects, comprising the steps of: —acquiring first position data which comprise first position information describing the spatial position of an object (2) within a first co-ordinate system (A); —acquiring first transformation data which comprise first transformation information describing a transformation of the object's position from the first co-ordinate system (A) into a second co-ordinate system (B); —acquiring, on the basis of the first position data and the first transformation data, second position data which comprise second position information describing the spatial position of the object (2) within the second co-ordinate system (B); —acquiring second transformation data which comprise second transformation information describing a transformation of the object's position from the second co-ordinate system (B) into an inertial co-ordinate system (I); —determining, on the basis of the second position data and the second transformation data, inertial position data which comprise inertial position information describing the spatial position of the object (2) within the inertial co-ordinate system (I). The present invention also relates to a program which, when running on a computer (4), cause the computer (4) to perform the method steps of the method described above and/or to a program storage medium on which the program is stored and/or to a computer (4) comprising such a program storage medium and/or to a signal wave, in particular a digital signal wave, carrying information which represents the program. The present invention also relates to a tracking system for determining the spatial position of objects, in particular medical objects, comprising: —a sensor array (1) which is configured to determine the spatial position of at least one tracking marker attached to an object (2); —an inertial sensor array (3) which is attached to said sensor array; and —a computer (4).

公开(公告)号：US20180140232A1

公开(公告)日：2018-05-24

申请号：US15794754

申请日：2017-10-26

Applicant: Brainlab AG

Inventor： Oliver FLEIG ,  Christian BRACK ,  Zohar LEDER ,  Martin BAUER

IPC: A61B5/11 ,  A61B5/00 ,  A61B5/107 ,  A61B90/00 ,  A61B34/20 ,  A61B34/10

CPC classification number: A61B5/1121 ,  A61B5/1072 ,  A61B5/4585 ,  A61B34/10 ,  A61B34/20 ,  A61B90/361 ,  A61B90/39 ,  A61B2034/104 ,  A61B2034/2055 ,  A61B2090/397

Abstract: A data processing method for determining a range of motion of an artificial knee joint which connects a femur and a tibia via a medial ligament and a lateral ligament, wherein at least the femur comprises an implant which forms a medial condyle and a lateral condyle, the method comprising the steps of: acquiring the maximum lengths of the lateral ligament and the medial ligament for a particular flexion angle of the knee joint; calculating a first virtual position between the femur and the tibia in which the lateral condyle of the femoral implant touches the tibia and the medial ligament is stretched to its maximum length; calculating a maximum valgus angle of the range of motion from the first virtual position; calculating a second virtual position between the femur and the tibia in which the medial condyle of the femoral implant touches the tibia and the lateral ligament is stretched to its maximum length; and calculating a maximum varus angle of the range of motion from the second virtual position.

公开(公告)号：US20210074021A1

公开(公告)日：2021-03-11

申请号：US17050049

申请日：2019-06-13

Applicant: Brainlab AG

Inventor： Oliver FLEIG

IPC: G06T7/73 ,  A61B34/20 ,  A61B34/10 ,  G16H50/50 ,  G16H30/40 ,  G16H30/20

Abstract: A computer-implemented medical method of determining the position of an anatomical region of interest of a patient's body is provided. The method includes acquiring finger model data, acquiring finger position data based on the finger model data and based on imaging the at least one finger, acquiring planning image data that describes a planning external surface of the anatomical region of interest, and determining anatomical region position data based on the finger position data and the planning image data, wherein the finger model data describes a user-specific model of the pose which is acquired by imaging the at least one finger when it attains the pose.