公开(公告)号：US20160012637A1

公开(公告)日：2016-01-14

申请号：US14797336

申请日：2015-07-13

申请人： St. Jude Medical, Atrial Fibrillation Division, Inc.

发明人： Carlos Carbonera ,  Vasily Vylkov ,  Daniel R. Starks ,  Jiang Qian ,  Eric J. Voth

IPC分类号： G06T17/10 ,  G06T11/60 ,  G06T15/08

CPC分类号： G06T17/10 ,  G06T11/60 ,  G06T15/08 ,  G06T17/00 ,  G06T2210/12

摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

公开(公告)号：US20220148260A1

公开(公告)日：2022-05-12

申请号：US17525077

申请日：2021-11-12

申请人： St. Jude Medical, Atrial Fibrillation Division, Inc.

发明人： Carlos Carbonera ,  Vasily Vylkov ,  Daniel R. Starks ,  Jiang Qian ,  Eric J. Voth

IPC分类号： G06T17/10 ,  G06T17/00 ,  G06T11/60 ,  G06T15/08

摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

公开(公告)号：US10231637B2

公开(公告)日：2019-03-19

申请号：US14766930

申请日：2014-03-05

申请人： St. Jude Medical, Atrial Fibrillation Division, Inc.

发明人： Eric J. Voth ,  Jiang Qian

IPC分类号： A61B5/04 ,  A61B5/042 ,  A61B5/0432 ,  A61B5/044 ,  A61B5/06

摘要： In a system and method for non-contact mapping of an anatomic structure, the spatial position of an electrode is determined independent of a previously generated three-dimensional model of the anatomic structure. A position of the electrode relative to a boundary surface of the model is determined, along with a corresponding point on the boundary surface of the three-dimensional model that is closest to the relative electrode position. A signed distance (d) of the relative electrode position from the corresponding closest point on the boundary surface is determined, wherein a positive signed distance indicates the relative electrode position is exterior to the model. In such an instance, the boundary surface is perturbed (e.g., expanded outward) at least in part as a function of the signed distance (d) until the relative electrode position lies interior to the model.

公开(公告)号：US11636651B2

公开(公告)日：2023-04-25

申请号：US17525077

申请日：2021-11-12

申请人： St. Jude Medical, Atrial Fibrillation Division, Inc.

发明人： Carlos Carbonera ,  Vasily Vylkov ,  Daniel R. Starks ,  Jiang Qian ,  Eric J. Voth

IPC分类号： G06T17/10 ,  G06T17/00 ,  G06T11/60 ,  G06T15/08

摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

公开(公告)号：US11205300B2

公开(公告)日：2021-12-21

申请号：US14797336

申请日：2015-07-13

申请人： St. Jude Medical, Atrial Fibrillation Division, Inc.

发明人： Carlos Carbonera ,  Vasily Vylkov ,  Daniel R. Starks ,  Jiang Qian ,  Eric J. Voth

IPC分类号： G06T17/10 ,  G06T17/00 ,  G06T11/60 ,  G06T15/08

摘要： A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

公开(公告)号：US20150366481A1

公开(公告)日：2015-12-24

申请号：US14766930

申请日：2014-03-05

申请人： ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.

发明人： Eric J. Voth ,  Jiang Qian

IPC分类号： A61B5/04 ,  A61B5/0432 ,  A61B5/06 ,  A61B5/044 ,  A61B5/042

CPC分类号： A61B5/04012 ,  A61B5/0422 ,  A61B5/0432 ,  A61B5/044 ,  A61B5/063

摘要： In a system and method for non-contact mapping of an anatomic structure, the spatial position of an electrode is determined independent of a previously generated three-dimensional model of the anatomic structure. A position of the electrode relative to a boundary surface of the model is determined, along with a corresponding point on the boundary surface of the three-dimensional model that is closest to the relative electrode position. A signed distance (d) of the relative electrode position from the corresponding closest point on the boundary surface is determined, wherein a positive signed distance indicates the relative electrode position is exterior to the model. In such an instance, the boundary surface is perturbed (e.g., expanded outward) at least in part as a function of the signed distance (d) until the relative electrode position lies interior to the model.

摘要翻译： 在用于解剖结构的非接触映射的系统和方法中，独立于解剖结构的先前生成的三维模型来确定电极的空间位置。 确定电极相对于模型的边界表面的位置以及最靠近相对电极位置的三维模型的边界表面上的相应点。 确定相对电极位置与边界表面上对应的最近点的有符号距离（d），其中正有符号距离表示相对电极位置在模型外部。 在这种情况下，边界表面被扰动（例如，向外膨胀）至少部分地作为有符号距离（d）的函数，直到相对电极位置位于模型内部。